2024-03-29T00:42:28Zhttp://dspace.ucuenca.edu.ec/oai/requestoai:dspace.ucuenca.edu.ec:123456789/290812021-11-16T10:00:58Zcom_123456789_21982com_123456789_15col_123456789_21983
Model intercomparison to explore catchment functioning: results from a remote montane tropical rainforest
Plesca, Ina
Timbe Castro, Edison Patricio
Exbrayat, Jean Francois
Windhorst, David
Kraft, Philipp
Crespo Sanchez, Patricio Javier
Vaché, K. B.
Frede, Hans Georg
Breuer, Lutz
Catchment hydrology modeling
Catchment runoff modeling
Model intercomparison
La generación de escorrentía a escala de captación implica una interacción compleja de procesos físicos y químicos que operan en una amplia distribución de escalas espaciales y temporales. Comprender la generación de escorrentía se ve desafiado por esta complejidad inherente: el paso más incierto de predecir la respuesta hidrológica de las cuencas hidrográficas es mucho más desafiante. Se han implementado muchas hipótesis diferentes en modelos hidrológicos para capturar los procesos de generación de escorrentía y proporcionar predicciones hidrológicas. Estos conceptos se han desarrollado sobre la base de observaciones de campo ampliadas. Aquí proponemos inferir la comprensión del flujo de agua y la exploración de cuencas a través de la aplicación de una variedad de modelos hidrológicos disponibles como un mecanismo para construir y ampliar modelos que han sido desarrollados para capturar procesos hidrológicos particulares. Consideramos que esta estrategia de modelado de conjuntos es particularmente apropiada en cuencas hidrográficas no calibradas. El estudio se lleva a cabo en una cuenca de captación de selva tropical montañosa en el sur de Ecuador. La cuenca es de 75 km2 y está cubierta por bosques en el sur, mientras que las laderas del norte han sido deforestadas en parte para el pastoreo. La precipitación anual es muy variable, alcanzando hasta 5700 mm por año en las partes altas de la cuenca. Para explorar los procesos dominantes de escorrentía, se desarrolló un conjunto de 6 modelos hidrológicos con diferentes estructuras aplicadas en diferentes niveles de detalle espacial y temporal. El conjunto incluye agrupados espacialmente (HBV-light), semidistribuidos (HEC-HMS, CHIMP, SWAT, LASCAM) y un modelo completamente distribuido (HBV-N-D). El conjunto de herramientas hidroestadísticas WETSPRO se utilizó para caracterizar hidrogramas simulados y observados. Se generaron índices estimados de flujo base, mínimos y máximos de flujo, curvas de duración de flujo y errores acumulativos y se compararon entre el conjunto de modelos. Este proceso facilitó la exploración de procesos que controlan la generación de escorrentía, permitió una evaluación de la aplicabilidad de los modelos seleccionados a las selvas tropicales montanas y brindó la capacidad de evaluar y explicar dónde fallaron los diferentes modelos.
Catchment-scale runoff generation involves a complex interaction of physical and chemical processes operating over a wide distribution of spatial and temporal scales. Understanding runoff generation is challenged by this inherent complexity – the more uncertain step of predicting the hydrologic response of catchments is that much more challenging. Many different hypotheses have been implemented in hydrological models to capture runoff generation processes and provide hydrologic predictions. These concepts have been developed based on extended field observations. Here we propose inferring water flux understanding and catchment exploring through the application of a variety of available hydrological models as a mechanism to build upon and extend models that have been developed to capture particular hydrological processes. We view this ensemble modeling strategy as particularly appropriate in ungauged catchments. The study is carried out in a tropical montane rainforest catchment in Southern Ecuador. The catchment is 75 km2 and is covered by forest in the south, while the northern slopes have been partly deforested for grazing. Annual rainfall is highly variable, reaching up to 5700 mm per year in the upper parts of the catchment. To explore the dominating runoff processes, an ensemble of 6 hydrological models with different structures applied over different levels of both spatial and temporal detail was developed. The ensemble includes spatially lumped (HBV-light), semi-distributed (HEC-HMS, CHIMP, SWAT, LASCAM) and a fully distributed model (HBV-N-D). The hydro-statistical toolkit WETSPRO was used to characterize simulated and observed hydrographs. Estimated baseflow indices, flow minima and maxima, flow duration curves and cumulative errors were generated and compared among the ensemble of models. This process facilitated the exploration of processes controlling runoff generation, enabled an evaluation of the applicability of the screened models to tropical montane rainforests, and provided the capacity to evaluate and explain where different models failed.
2018-01-11
2018-01-11
2012
ARTÍCULO
03043800, 18727026
https://www.sciencedirect.com/science/article/abs/pii/S0304380011002663?via%3Dihub
10.1016/j.ecolmodel.2011.05.005
es_ES
oai:dspace.ucuenca.edu.ec:123456789/317982020-08-01T01:16:42Zcom_123456789_21982com_123456789_15col_123456789_21983
La actividad física y el rendimiento académico en estudiantes universitarios
Avila Mediavilla, Carlos Marcelo
Aldas Arcos, Helder Guillermo
Jarrin Navas, Santiago Alejandro
Actividad Física
Rendimiento Académico
Estudiantes Universitarios
Los profesores de cátedra de las instituciones educativas de educación básica, bachillerato, y superior, en específico en la
Educación Superior, han considerado en algunas ocasiones que la Cultura Física, Educación Física, y Actividad Física,
no representan un aporte sustancial en la formación integral del estudiante en los niveles de concreción del conocimiento.
Pocas son evidencias de los protocolos planteados para atender o entender la relevancia o importancia que puede tener
la actividad física en el rendimiento académico de los estudiantes universitarios ecuatorianos. El objetivo fundamental de
esta investigación es determinar la relación existente entre la actividad física, para mejorar el rendimiento académico, que
constituyen parte fundamental para la formación integral y profesional del estudiante. La investigación es cuantitativa, con
alcance exploratorio, socialmente adaptada a involucrar las esferas del conocimiento, psicomotriz, cognitivo, afectivo y
social, mediante la aplicación de encuestas a estudiantes y docentes de la UTI, 2014, Quito, se pudo determinar que la
actividad física influye significativamente en el rendimiento académico de los estudiantes universitarios.
The professors of the chairs of the educational institutions of basic, superior and baccalaureate education, even more in
Higher Education, have sometimes considered that the physical culture, physical education, and physical activity, do not
represent a substantial contribution in the integral formation of the student in the levels of concretion of knowledge. There
is no evidence of the protocols proposed to address or understand the relevance or importance that physical activity can
have on the academic performance of university students. The fundamental objective of this research is to determine the
relationship between physical activity, psychomotor actions that produce caloric expenditure through play, recreational
and sports actions to improve physical and mental health and academic performance, which is the ability to respond
satisfactorily to educational stimuli developed through the teaching - learning process to obtain a level of functioning
and academic achievements over a period of time, which constitute a fundamental part for the integral and professional
education of the student. The research is of a contemporary type, socially adapted to involve the spheres of knowledge,
psychomotor, cognitive, affective and social, being the case that through surveys to students and teachers, it was determined
that physical activity significantly influences academic performance of university students.
2019-01-18
2019-01-18
2018
ARTÍCULO
2588-087X(e), 2528-8008
http://killkana.ucacue.edu.ec/index.php/killkana_social/article/view/214/460
10.26871/killkana_social.v2i4.214
es_ES
oai:dspace.ucuenca.edu.ec:123456789/343042020-08-01T01:02:52Zcom_123456789_21982com_123456789_15col_123456789_21983
Sustainable innovation and service quality: an integrated overview
Barragan Landy, Milton Francisco
Romero, Fernando
Sustainability
Sustainable innovation
Service quality
Review
Sustainability is today a main concern of society. One way of addressing the problem and the need for sustainability is through innovation in products and services that are geared towards the satisfaction of specific needs of organizations, institutions or costumers related to a demand for products, services or product-services that are friendlier to the environment. Sustainable innovation is thus seen as a way of meeting the expectations of consumers and organizations regarding the delivery of green products or services. Stated in this way, there are two concepts that emerge as fundamental to the study of sustainability: the concept of sustainable innovation and the concept of service quality. The research questions that motivate this research are: what is the relationship between sustainable innovation and service quality? Are the expectations of consumers or organizations being met by the supply of green products and services? What are the implications in terms of changes that organizations or consumers must make? Having in mind these questions, the aim of this document is to explore the relationship between sustainable innovation and service quality in the scientific literature, identifying the factors and interactions that are suggested by it. The research methodology used to achieve that objective was based on a literature review, made with a qualitative approach. A four-point scale was developed to assess, in each article, the level of relation between the two concepts. The scale ranges from high to null relation between the two concepts. Most of the articles propose a positive relation between the two concepts, whereby 58% of the articles reviewed have the category of "high relation", and 31% were categorized as having a "medium relation". The implications for organizations may be the incorporation within their organizational culture of a strategy of integration of sustainable innovation and service quality through a mechanism called social and environmental responsibility.
© Proceedings of the 14th European Conference on Innovation and Entrepreneurship, ECIE 2019. All rights reserved. Sustainability is today a main concern of society. One way of addressing the problem and the need for sustainability is through innovation in products and services that are geared towards the satisfaction of specific needs of organizations, institutions or costumers related to a demand for products, services or product-services that are friendlier to the environment. Sustainable innovation is thus seen as a way of meeting the expectations of consumers and organizations regarding the delivery of green products or services. Stated in this way, there are two concepts that emerge as fundamental to the study of sustainability: the concept of sustainable innovation and the concept of service quality. The research questions that motivate this research are: what is the relationship between sustainable innovation and service quality? Are the expectations of consumers or organizations being met by the supply of green products and services? What are the implications in terms of changes that organizations or consumers must make? Having in mind these questions, the aim of this document is to explore the relationship between sustainable innovation and service quality in the scientific literature, identifying the factors and interactions that are suggested by it. The research methodology used to achieve that objective was based on a literature review, made with a qualitative approach. A four-point scale was developed to assess, in each article, the level of relation between the two concepts. The scale ranges from high to null relation between the two concepts. Most of the articles propose a positive relation between the two concepts, whereby 58% of the articles reviewed have the category of "high relation", and 31% were categorized as having a "medium relation". The implications for organizations may be the incorporation within their organizational culture of a strategy of integration of sustainable innovation and service quality through a mechanism called social and environmental responsibility.
2020-05-14
2020-05-14
2019
ARTÍCULO DE CONFERENCIA
978-191276434-1
2049-1050
http://dspace.ucuenca.edu.ec/handle/123456789/34304
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073379950&origin=inward
10.34190/ECIE.19.180
es_ES
Academic Conferences and Publishing International Limited
oai:dspace.ucuenca.edu.ec:123456789/374262021-11-23T10:02:22Zcom_123456789_21982com_123456789_15col_123456789_21983
Ecosistema y aprendizaje: una visión centrada en la creatividad en la educación de los alumnos de la unidad educativa Rafael Astudillo
Otoya Tama, Javier Alejandro
Tubay Zambrano, Fanny Monserrate
Interculturalidad
Educación
Ecosistemas
Creatividad
Los ecosistemas educativos representan organizaciones complejas en la que sus elementos interactúan y se influencian entre sí; y en algunos casos estimulan positivamente el proceso educativo, sin embargo, en otros lo obstaculizan y afectan. Por lo que la presente investigación tiene el fin de valorar la influencia de los sistemas educativos en el pensamiento creativo de los estudiantes de la Unidad Educativa Rafael Astudillo del cantón San Lorenzo recinto Colón Eloy, teniendo presente la naturaleza como un escenario clave para el aprendizaje significativo y contextualizado en las necesidades reales. Se utiliza una metodología descriptiva propositiva de tipo cuantitativa, en la que se aplica un cuestionario y centrado en la motivación y concienciación del entorno para un desenvolvimiento pleno social, personal, educacional y creativo. Participan docentes y estudiantes. antes y después de aplicar una propuesta. Los principales resultados determinaron un contraste alto con respecto a los niveles de interés, independencia, e imaginación que midió el cuestionario denotando de esta manera que el ecosistema y aprendizaje influye significativamente en los procesos creativos de los estudiantes. No obstante, las propuestas curriculares no consideran estos dispositivos para el diseño de las actividades pedagógicas en el aula. De ahí que la mirada intercultural de la educación contribuye a construir procesos escolares participativos, democráticos, inclusivos y socialmente mas justos.
2021-11-17
2021-11-17
2021
ARTÍCULO
2550-682X
http://dspace.ucuenca.edu.ec/handle/123456789/37426
https://www.polodelconocimiento.com/ojs/index.php/es/article/view/3212
10.23857/pc.v6i10
es_ES
oai:dspace.ucuenca.edu.ec:123456789/394682022-07-26T10:02:15Zcom_123456789_21982com_123456789_15col_123456789_21983
Use of battery energy storage systems to enhance the frequency stability of an islanded microgrid based on hybrid photovoltaic-diesel generation
Ponce Minaya, Edwin Bernardo
Pico Mera, Hugo Adrian
Ochoa Correa, Danny Vinicio
Pazmiño Ordoñez, Ivan Patricio
Photovoltaic generation
Synchronous generation
Primary frequency control
Microgrid
Battery energy storage system
Primary frequency control in power systems is becoming more difficult as levels of non-synchronous generation grow. This paper explores how implementing a control strategy based on the concept of virtual inertia, supported by the use of battery energy storage systems (BESS), might positively impact frequency stability of the grid. Particularly, this work centers its effort on islanded microgrids based on hybrid generation: photovoltaic and diesel. This paper presents a methodology for representing an islanded-power system equipped with photovoltaic (PV), diesel generators, and BESS, the latter with a virtual frequency control feature devised to improve the resilience of the system in terms of frequency after a contingency occurs. The proposed methodology is designed as an analysis tool to help in the survey and decision making in the planning and operation of systems with these characteristics. This methodology and its implementation are used to test an electrical power system facing a continuous power imbalance caused by the PV-power intermittence to assess how the frequency varies when the virtual inertia control system based on BESS is enabled or not. Matlab-Simulink is used as a simulation environment. The numerical results achieved with the model show the benefits of implementing the virtual inertia control characteristics in the BESS in terms of both reducing frequency fluctuations and reducing the time-derivative of frequency under normal operating conditions.
2022-07-22
2022-07-22
2021
ARTÍCULO DE CONFERENCIA
978-303094261-8
2367-3370
http://dspace.ucuenca.edu.ec/handle/123456789/39468
http://www.scopus.com/inward/record.url?eid=2-s2.0-85124133935&partnerID=MN8TOARS
10.1007/978-3-030-94262-5_5
es_ES
Springer Science and Business Media Deutschland GmbH
oai:dspace.ucuenca.edu.ec:123456789/365902021-08-10T10:01:48Zcom_123456789_21982com_123456789_15col_123456789_21983
Acute oral toxicity of a novel functional drink based on Ilex guayusa, Vernonanthura patens, and cocoa husk
Pilozo Muentes, Glenda Margarita
Orellana Manzano, Andrea Katherine
Orellana Manzano, Silvia Gabriela
DI GRUMO, DAVIDE
Quijano Aviles, Maria Fernanda
Villacres Cevallos, Maria Del carmen
Ortiz Ulloa, Silvia Johana
Sarmiento Tomala, Glenda Marcela
Manzano Santana, Patricia Isabel
Paladines Santacruz, Geovanna Lissette
Zaruma Torres, Fausto Leonardo
Berghe, Wim Vanden
Iñiga Alvarado, Elsy Catalina
Acute oral toxicity
Cocoa husk
Vernonanthura patens
Functional drink
Mice
Ilex guayusa
Se formuló una nueva bebida funcional con propiedades nutracéuticas a partir de extractos acuosos de Ilex guayusa, hojas de Vernonanthura patens y cáscaras de cacao. Este jugo contiene diversos compuestos bioactivos, como compuestos fenólicos y metilxantinas, con propiedades antioxidantes y estimulantes de interés farmacológico. Sin embargo, se sabe si la interacción de los extractos de hierbas puede tener efectos tóxicos adversos sobre la salud humana. Para evaluar la inocuidad de esta bebida funcional, estimamos la toxicidad oral aguda (AOT) en ratones experimentales. En este trabajo se presenta la evaluación AOT de dos formulaciones de una bebida funcional (preformulación y microencapsulación) a una dosis única de 2000 mg / kg de peso corporal (p.v.). No se observaron signos de toxicidad adversa y mortalidad después de una dosis oral única de 2000 mg / kg de peso corporal. Asimismo, no se observaron cambios significativos de peso corporal y de órganos, comportamiento de consumo de alimentos y agua, ni cambios histopatológicos en los principales órganos evaluados. En conclusión, esta bebida funcional se puede catalogar como de baja toxicidad "según el Sistema de Clasificación Globalmente Armonizado (GHS), lo que la convierte en una bebida potencial con alto valor nutricional y farmacológico.
A novel functional drink with nutraceutical properties was formulated from the aqueous extracts of Ilex guayusa, and Vernonanthura patens leaves, and cocoa husks. This juice contains various bioactive compounds, such as phenolic compounds and methylxanthines, with antioxidant and stimulant properties of pharmacological interest. However, it is known whether herbal extracts' interaction may have adverse toxic effects on human health. To evaluate this functional drink's innocuity, we estimated the acute oral toxicity (AOT) in experimental mice. This paper presents the AOT evaluation of two formulations of a functional drink (pre-formulation and microencapsulation) at a single dose of 2000 mg/kg of body weight (b.w.). No signs of adverse toxicity and mortality were observed after a single oral dose of 2000 mg/kg b.w. Likewise, no significant body and organ weight changes, food and water consumption behavior, and no histopathological changes were observed in the main organs evaluated. In conclusion, this functional drink can be categorized as low toxicity " according to the Globally Harmonized Classification System (GHS), making it a potential beverage with high nutritional and pharmacological value.
2021-08-04
2021-08-04
2021
ARTÍCULO
2214-7500
http://dspace.ucuenca.edu.ec/handle/123456789/36590
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103698606&doi=10.1016%2fj.toxrep.2021.03.026&partnerID=40&md5=67996297f5dd70a3b9fd0a2d886079b8
10.1016/j.toxrep.2021.03.026
es_ES
oai:dspace.ucuenca.edu.ec:123456789/408282023-01-23T20:54:48Zcom_123456789_21982com_123456789_15col_123456789_21983
Hydrometeorological factors controlling the stable isotopic composition of precipitation in the highlands of south Ecuador
Zhiña Villa, Dario Xavier
Mosquera Rojas, Giovanny Mauricio
Esquivel Hernández, Germain
Cordova Mora, Mario Andres
Sánchez Murillo, Ricardo
Orellana Alvear, Johanna Marlene
Crespo Sanchez, Patricio Javier
Atmosphere
South America
Tropics
Convection
Precipitation
Rainfall
Isotopic analysis
Regression analysis
Mountain meteorology
Regional effects
Knowledge about precipitation generation remains limited in the tropical Andes due to the lack of water stable isotope (WSI) data. Therefore, we investigated the key factors controlling the isotopic composition of precipitation in the Páramo highlands of southern Ecuador using event-based (high frequency) WSI data collected between November 2017 and October 2018. Our results show that air masses reach the study site preferentially from the eastern flank of the Andes through the Amazon basin (73.2%), the Orinoco plains (11.2%), and the Mato Grosso Massif (2.7%), whereas only a small proportion stems from the Pacific Ocean (12.9%). A combination of local and regional factors influences the δ18O isotopic composition of precipitation. Regional atmospheric features (Atlantic moisture, evapotranspiration over the Amazon Forest, continental rain-out, and altitudinal lapse rates) are what largely control the meteoric δ18O composition. Local precipitation, temperature, and the fraction of precipitation corresponding to moderate to heavy rainfalls are also key features influencing isotopic ratios, highlighting the importance of localized convective precipitation at the study site. Contrary to δ18O, d-excess values showed little temporal variation and could not be statistically linked to regional or local hydrometeorological features. The latter reveals that large amounts of recycled moisture from the Amazon basin contributes to local precipitation regardless of season and predominant trajectories from the east. Our findings will help to improve the isotope-based climatic models and enhance paleoclimate reconstructions in the southern Ecuador highlands. © 2022 American Meteorological Society.
2023-01-23
2023-01-23
2022
ARTÍCULO
1525755X
https://journals.ametsoc.org/view/journals/hydr/23/7/JHM-D-21-0180.1.xml
10.1175/JHM-D-21-0180.1
es_ES
oai:dspace.ucuenca.edu.ec:123456789/221042020-08-01T01:11:28Zcom_123456789_21982com_123456789_15col_123456789_21983
Malnutrition epidemiology in Latin America: Current situation. Epidemiología de la desnutrición en Latinoamérica: situación actual
Kac, Gilberto
García Alvear, Jorge Luis
Malnutricion
Estudios Ecologicos
Niños
America Latina
Salud Publica
introducción: la desnutrición es uno de los más importantes problemas de salud pública en América Latina. Objetivo: Presentar un análisis basado en tres indicadores antropométricos considerando el países, sexo, área geográfica y las condiciones socioeconómicas. métodos: la desnutrición infantil (z-score <-2 desviación estándar) se hizo teniendo en cuenta los indicadores antropométricos en niños <5 años; talla para la edad, peso para la talla y el peso para la edad. prevalencia se estimó sobre la base de sexo y tipo de hogar (urbana y rural). se elaboraron mapas con la distribución de la desnutrición. se empleó la base de datos de la organización mundial de la salud de la desnutrición y el crecimiento. El análisis estadístico incluyó la correlación y regresión simple. Resultados: los países se organizaron según quintiles de la distribución de la desnutrición: 0-10%: Argentina, Brasil y Costa Rica; 20.11%: Chile, Colombia, Republica Dominicana, Uruguay y Venezuela; 21-30%: Ecuador, El Salvador, Haití, México y Nicaragua; 3.140%: Bolivia, Honduras y Perú; > 40% Guatemala. la relación entre los indicadores de desnutrición y socioeconómicos siempre fue inversa a excepción de la mortalidad infantil. conclusiones: Haití, Guatemala, Honduras y Nicaragua fueron los países con mayor prevalencia de desnutrición. la relación entre la desnutrición y socioeconómica era inversa para IDH, la esperanza de nacimiento y escolarización. la relación con la mortalidad infantil fue positiva.
introduction: malnutrition is one of the most important public health problems in latin-america. objective: to present an analysis based on three anthropometric indicators considering the countries, sex, geographic area and socioeconomic conditions. methods: the childhood malnutrition (z-score < -2 standard deviation) was made considering anthropometric indicators in children < 5 years; height for age, weight for height and weight for age. prevalence was estimated based on sex and type of household (urban and rural). maps with malnutrition distribution were drawn. the world health organization database for malnutrition and growth was employed. statistical analysis included correlation and simple regression. results: the countries were organized according to quintiles of malnutrition distribution: 0-10%: argentina, brazil and costa rica; 11-20%: chile, colombia, republican dominican, uruguay and venezuela; 21-30%: ecuador, el salvador, haiti, méxico and nicaragua; 3140%: bolivia, honduras and peru; > 40% guatemala. the relation between malnutrition and socioeconomic indicators was always inverse except for infant mortality. conclusions: haiti, guatemala, honduras and nicaragua were the countries with the highest malnutrition prevalence. the relation between malnutrition and socioeconomic was inverse for idh, birth expectancy and schooling. the relation with infant mortality was positive.
2015-06-12
2015-06-12
2010-10
Article
http://dspace.ucuenca.edu.ec/handle/123456789/22104
spa
http://creativecommons.org/licenses/by-nc-sa/3.0/ec/
openAccess
oai:dspace.ucuenca.edu.ec:123456789/429682023-10-02T16:22:28Zcom_123456789_21982com_123456789_15col_123456789_21983
Seismic mitigation of a benchmark twenty-story steel structure based on intermodal targeted energy transfer (IMTET)
Carrion Monsalve, Juan Eugenio
Vibro-impacts
Hertzian contacts
Intermodal targeted energy transfer (IMTET)
Passive mitigation
Seismic excitation
This study investigates a new intermodal targeted energy transfer (IMTET) concept for rapid, effective, and purely passive seismic mitigation of a benchmark large-scale model of a twenty-story steel structure. IMTET is based on extremely rapid nonlinear scattering of seismic input energy from low to high frequency modes of a building. This effect is achieved by introducing strategically placed, local strong vibro-impact nonlinearities that are generated by contacts of the building floors with a relatively light, yet stiff, auxiliary core structure. Accordingly, the performance of IMTET is studied here, with the benchmark structure realized through a set of previously established performance criteria. The seismic loads are simulated based on records from three historical earthquakes, namely the 1995 Kobe, 1994 Northridge, and 1940 El Centro. To assess the robustness of the proposed passive nonlinear mitigation mechanism, the clearance distributions as well as the core structure parameters, are optimized for a specific seismic excitation (Kobe). Subsequently, the optimized design is tested against the two other historical earthquake records to demonstrate the effectiveness of the IMTET for these cases as well. The numerical results show that the vibro-impacts rapidly, robustly, and almost irreversibly redistribute the seismic input energy from low to high frequency structural modes, thus realizing a highly effective passive earthquake protective system. In addition, when optimized, this new concept can be realized fully passively, without the need to add any mass to the building, and at the cost of only moderate increases in the resulting floor accelerations and local stresses. In addition, the nonlinear vibro-impacts between the floors and the core structure reduce the seismic input energy to the building compared to the no core case, adding an additional benefit to the seismic mitigation approach. Therefore, the IMTET methodology for seismic mitigation has the potential to significantly enhance the seismic performance of building structures.
2023-10-02
2023-10-02
2023
ARTÍCULO
0141-0296
http://dspace.ucuenca.edu.ec/handle/123456789/42968
https://www.scopus.com/record/display.uri?eid=2-s2.0-85149318401&origin=resultslist&sort=plf-f&src=s&sid=c7060c5899815628c9056061e9a49e63&sot=b&sdt=b&s=TITLE-ABS-KEY%28Seismic+mitigation+of+a+benchmark+twenty-story+steel+structure%29&sl=130&sessionSearchId=c7060c5899815628c9056061e9a49e63
10.1016/j.engstruct.2023.115868
es_ES
oai:dspace.ucuenca.edu.ec:123456789/383352022-03-08T10:04:52Zcom_123456789_21982com_123456789_15col_123456789_21983
Incidencia de la altura de las edificaciones en el paisaje urbano histórico: caso el ejido en la ciudad de Cuenca
Cordero Maldonado, Silvana Carmen
Peñaherrera Wilches, Maria Isabel
Astudillo Cordero, Jaime Sebastian
Paisaje urbano histórico
El Ejido Cuenca
Edificaciones en altura
Visuales
Valoración
El nuevo enfoque del Paisaje Urbano Histórico (PUH), busca controlar los
impactos en el mismo y gestionar un desarrollo sostenible del patrimonio, este proyecto
de investigación tiene como objetivo el identificar y valorar puntos importantes en El
Ejido, ya que es la zona buffer del Patrimonio de la ciudad, desde los cuales se generan
relaciones visuales importantes entre la Ciudad Histórica, El Ejido y el entorno,
creando un conjunto de lineamientos tendientes a su conservación y protección.
The new Urban Historic Landscape (HUL), approach seeks to control impacts
and manage sustainable development of historical places, the main objective of this
research project is to identify and assess points or important areas in El Ejido, which
generate important visual relations among the historic city, El Ejido, and the natural
and built environment, creating a set of guidelines aimed at their conservation and
protection.
2022-03-04
2022-03-04
2018
ARTÍCULO
2174-7563
https://dialnet.unirioja.es/servlet/articulo?codigo=6266266
es_ES
oai:dspace.ucuenca.edu.ec:123456789/343072020-08-01T01:05:12Zcom_123456789_21982com_123456789_15col_123456789_21983
AC transmission expansion planning considering uncertainty
Villacres Enriquez, Luis Ricardo
Sanchez Cueva, Richard Mauricio
Castro, Carlos Alberto
Torres Contreras, Santiago Patricio
AC model
Uncertainty
Transmission Expansion Planning
Simheuristic
Montecarlo
AC Model
Uncertainty
Transmission Expansion Planning
Simheuristic
Montecarlo
© 2019 IEEE. Taking into account uncertainty into the Transmission Expansion Planning (TEP) problem is an important and complex issue. So far, the literature has proposed only simplified models in order to solve this problem. In this research work, a formulation and solution method to solve the Transmission System Expansion Planning problem considering uncertainty and using the AC network model is proposed. A simheuristic technique that combines simulation with an Ant Colony Optimization algorithm is used. The Montecarlo Simulation (MS) technique to handle the stochastic behavior of demand and generation, and the Ant Colony Optimization algorithm for continuous domains (ACOR) to find the optimal solution of the problem were employed. The results were obtained for different test scenarios on the Garver 6-bus and the IEEE 24-bus test systems.
© 2019 IEEE. Taking into account uncertainty into the Transmission Expansion Planning (TEP) problem is an important and complex issue. So far, the literature has proposed only simplified models in order to solve this problem. In this research work, a formulation and solution method to solve the Transmission System Expansion Planning problem considering uncertainty and using the AC network model is proposed. A simheuristic technique that combines simulation with an Ant Colony Optimization algorithm is used. The Montecarlo Simulation (MS) technique to handle the stochastic behavior of demand and generation, and the Ant Colony Optimization algorithm for continuous domains (ACOR) to find the optimal solution of the problem were employed. The results were obtained for different test scenarios on the Garver 6-bus and the IEEE 24-bus test systems.
2020-05-14
2020-05-14
2019
ARTÍCULO DE CONFERENCIA
9781538682180
000-000-000-0
http://dspace.ucuenca.edu.ec/handle/123456789/34307
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85075895453&origin=inward
10.1109/ISGTEurope.2019.8905689
es_ES
Institute of Electrical and Electronics Engineers Inc.
oai:dspace.ucuenca.edu.ec:123456789/343862020-08-01T01:04:18Zcom_123456789_21982com_123456789_15col_123456789_21983
Bullying y cyberbullying escolar en niños y jóvenes adolescentes: un estudio de caso
Ordoñez Ordoñez, Miriam Carlota
Prado Cabrera, Katerine Daniela
Víctima
Acosador-victimizado
Acoso escolar
Cyberbullying
Acosador
El objetivo de la investigación fue identificar la incidencia de bullying y cyberbullying en 983 estudiantes de 10 a 15 años de edad, del sexto al décimo año de EGB, pertenecientes a cinco instituciones educativas de la ciudad de Cuenca, para lo cual se cruzaron las variables de bullying y cyberbullying con la edad, el sexo y nivel educativo de los estudiantes encuestados, visualizando la implicación de los protagonistas, la tipología y sus manifestaciones. La metodología utilizada fue cuantitativa, con alcance descriptivo relacional, haciendo uso de dos instrumentos de medición: la escala European Bullying Intervention Project Questionnaire (EBIPQ) y la escala European Cyberbullying Intervention Project Questionnaire (ECIPQ), que permitieron identificar la incidencia y características del bullying y cyberbullying. Se evidenció un 28.3% de estudiantes víctimas de acoso escolar, de ellos un 20.7% eran víctimas de bullying, un 4.3% cibervíctimas y un 3.4% víctimas tanto de bullying como de ciberbullying. En el bullying la principal tipología presente era la verbal directa, en tanto que en el cyberbullying su principal manifestación fueron los insultos electrónicos y la exclusión. Se visualizó un mayor nivel de implicación de los varones como víctimas y agresores victimizados, en cuanto a la edad, los estudiantes de 12 a 15 años pertenecientes al octavo, noveno y décimo año presentaron un mayor grado de implicación como ciberagresores victimizados. En conclusión, se puede evidenciar que existe una mayor presencia del acoso escolar tradicional y una menor incidencia del cyberbullying, no obstante, parecería presentarse una relación directa entre las dos modalidades de acoso escolar.
El objetivo de la investigación fue identificar la incidencia de bullying y cyberbullying en 983 estudiantes de 10 a 15 años de edad, del sexto al décimo año de EGB, pertenecientes a cinco instituciones educativas de la ciudad de Cuenca, para lo cual se cruzaron las variables de bullying y cyberbullying con la edad, el sexo y nivel educativo de los estudiantes encuestados, visualizando la implicación de los protagonistas, la tipología y sus manifestaciones. La metodología utilizada fue cuantitativa, con alcance descriptivo relacional, haciendo uso de dos instrumentos de medición: la escala European Bullying Intervention Project Questionnaire (EBIPQ) y la escala European Cyberbullying Intervention Project Questionnaire (ECIPQ), que permitieron identificar la incidencia y características del bullying y cyberbullying. Se evidenció un 28.3% de estudiantes víctimas de acoso escolar, de ellos un 20.7% eran víctimas de bullying, un 4.3% cibervíctimas y un 3.4% víctimas tanto de bullying como de ciberbullying. En el bullying la principal tipología presente era la verbal directa, en tanto que en el cyberbullying su principal manifestación fueron los insultos electrónicos y la exclusión. Se visualizó un mayor nivel de implicación de los varones como víctimas y agresores victimizados, en cuanto a la edad, los estudiantes de 12 a 15 años pertenecientes al octavo, noveno y décimo año presentaron un mayor grado de implicación como ciberagresores victimizados. En conclusión, se puede evidenciar que existe una mayor presencia del acoso escolar tradicional y una menor incidencia del cyberbullying, no obstante, parecería presentarse una relación directa entre las dos modalidades de acoso escolar.
2020-05-28
2020-05-28
2019
ARTÍCULO
1390-6143
http://dspace.ucuenca.edu.ec/handle/123456789/34386
https://doi.org/10.18537/mskn.10.02.04
10.18537/mskn.10.02.04
es_ES
oai:dspace.ucuenca.edu.ec:123456789/420962023-06-12T15:15:24Zcom_123456789_21982com_123456789_15col_123456789_21983
COVID-19, comentarios a una crónica del presente
Paez Iturralde, Joanna Alexandra
Pino Andrade, Raul Haldo
COVID-19
Epidemiología
Resulta complejo escribir sobre un evento que está ocurriendo. Los riesgos son siempre los mismos:
una visión apresurada, fragmentaria y descriptiva. La dificultad de establecer un análisis disciplinado
sobre un evento es máxima si no la ponemos en relación con eventos que, sin ser los mismos, ofrecen
pistas para entender la situación actual. El COVID-19 nos ha movido a todos a darle atención a un
grupo de literatura que hasta finales de 2019 ocupaba un lugar más bien marginal, que acaparaba la
atención de las ciencias sociales, la historia y la epidemiología. Sin detenernos a enfrentar ese vacío
y menos aún a tratar siquiera de delinear sus causas, si cabe por lo menos llamar la atención sobre la
importancia de entender a la medicina en su complejidad, en su relación con las otras ciencias biológi cas y con las humanidades y ciencias sociales. Aunque las últimas no se “utilicen” de manera directa
en la práctica clínica cotidiana, muestran su relevancia decisiva al momento de enfrentar situaciones
que estremecen nuestra vida de forma tan profunda.
2023-06-12
2023-06-12
2020
CAPÍTULO DE LIBRO
978-9942-822-57-4
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/42096
https://publicaciones.uazuay.edu.ec/index.php/ceuazuay/catalog/book/98
es_ES
Universidad del Azuay
oai:dspace.ucuenca.edu.ec:123456789/290022020-08-01T01:14:19Zcom_123456789_21982com_123456789_15col_123456789_21983
A Multiobjective Minimax Regret Robust VAr Planning Model
Lopez, J
Discrete Tap Settings
Load Shedding
Multi-Objective
Quadratically-Constrained
Regret Optimization
Risk
Uncertainties
This paper proposes a risk-based mixed integer quadratically-constrained programming model for the long-term VAr planning problem. Risk aversion is included in the proposed model by means of regret-based optimization to quantify the load shedding risk because of a reactive power deficit. The expected operation and expansion costs of new installed reactive power sources and load shedding risk are jointly minimized. Uncertainty in the active and reactive load demands has been included in the model. An ?-constraint approach is used to characterize the optimal efficient frontier. Also, discrete tap settings of tap-changing transformers are modeled as a set of mixed integer linear equations which are embedded into an ac optimal convex power flow. Computational results are obtained from a realistic South and South-East Brazilian power system to illustrate the proposed methodology. Finally, conclusions are duly drawn.
2018-01-11
2018-01-11
2017-05-01
Article
8858950
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018773392&doi=10.1109%2fTPWRS.2016.2613544&partnerID=40&md5=787155b4a760f12d09358dc291d3a161
http://dspace.ucuenca.edu.ec/handle/123456789/29002
10.1109/TPWRS.2016.2613544
en_US
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS INC.
oai:dspace.ucuenca.edu.ec:123456789/405422022-12-22T21:17:55Zcom_123456789_21982com_123456789_15col_123456789_21983
Ecografía doppler de la arteria pulmonar como indicador de madurez pulmonar fetal, Cuenca – Ecuador
Orellana Ortega, Jonnathan Paul
Salazar Torres, Zoila Katherine
Cardenas Heredia, Freddy Rosendo
Orellana Guerrero, Romulo Vinicio
Mendez Cabrera, Saul Fabricio
Sanchez Salazar, Gustavo Mauricio
Ultrasonografía doppler
Flujometría por láser-doppler
Edad gestacional
Introducción: la flujometría de la arteria pulmonar en fetos sanos puede ser un estudio predictor de la madurez pulmonar, lo que conlleva a un impacto en la disminución de la mortalidad perinatal.Objetivo: establecer el índice de tiempo de aceleración/tiempo de eyección de la arteria pulmonar (TA/TE) como un indicador de madurez pulmonar fetal en gestantes entre 26 y 40 semanas de gestación (SG), usuarias del Hospital Especializado Fundación Humanitaria Pablo Jaramillo Crespo, periodo 2017.Métodos: estudio de validación de prueba diagnóstica. Se evaluó la flujometría de la arteria pulmonar por ecografía doppler en 300 fetos sanos de gestantes entre 15 y 45 años de edad. Para la recolección de datos se utilizó encuestas y para la determinación de la validez se usó los estadísticos sensibilidad (S), especificidad (E), valor predictivo positivo (VPP) y valor predictivo negativo (VPN). Resultados: el valor del índice TA/TE de la arteria pulmonar fue 0.216 para las gestantes entre 26-28 SG; de 0.253 entre 29-31 SG; de 0.279 entre 32-34 SG; de 0.315 para las gestantes entre 35-37 SG y de 0.349 entre 38-40 SG. Las 37 SG en punto de corte fue de 0.320; el área ROC fue 0.98 con una S: 95.2%, E: 97.2%. VPP 93.0% y VPN 98.1%.Conclusiones: el índice TA/TE de la arteria pulmonar demostró correlación con la edad gestacional. Un índice TA/TE de 0.320, como punto de corte, predice madurez pulmonar fetal
Introduction: pulmonary artery flow metric in healthy fetuses can be a predictive study of lung maturity, which leads to an impact on the decrease in perinatal mortality.Objective: to establish the ratio of pulmonary artery acceleration time to ejection time (AT/ET) as an indicator of fetal lung maturity in pregnant women from 26 to 40 weeks of gestation (WG), users of the “Hospital Especializado Fundación Humanitaria Pablo Jaramillo Crespo”, period 2017.Methods: A validity study of diagnostic tests was carried out. Pulmonary artery flow metric was evaluated by Doppler ultrasound in 300 healthy fetuses of pregnant women between 15 to 45 years old. Surveys were used to collect data. Sensitivity (S), specificity (E), positive predictive value (PPV) and negative predictive value (NPV) were used to determine validity.Results: the value of the TA / TE index of the pulmonary artery was 0.216 for pregnant women between 26-28 WG; of 0.253 between 29-31 WG; 0.279 between 32-34 WG; 0.315 for pregnant women between 35-37 WG and 0.349 between 38-40 WG. The 37 WG at the cut-off point was 0.320; the ROC area was 0.98 with a S: 95.2%, E: 97.2%. The PPV 93.0% and NPV 98.1%.Conclusions: the AT/ET ratio of pulmonary artery showed correlation with gestational age. An AT/ET ratio of 0.320, as a cut-off point, predicts fetal lung maturity
2022-12-19
2022-12-19
2020
ARTÍCULO
2661-6777
https://publicaciones.ucuenca.edu.ec/ojs/index.php/medicina/article/view/3266/2411
10.18537/RFCM.38.02.03
es_ES
oai:dspace.ucuenca.edu.ec:123456789/423452023-07-04T16:15:07Zcom_123456789_21982com_123456789_15col_123456789_21983
Efecto de la gestión del capital circulante en la rentabilidad de las PyMEs en el sector de confecciones: Cuenca – Ecuador
Jimenez Yumbla, Jonnathan Andres
Flores Sanchez, Gustavo Geovanni
Campoverde Campoverde, Jorge Arturo
Coronel Pangol, Katherine Tatiana
Romero Galarza, Carlos Armando
Pasivos de corto plazo
Capital de trabajo
Gestión financiera
Rentabilidad de la PyMEs
Activos de corto plazo
El presente estudio identifica los principales factores que influyen en las decisiones empresariales sobre la administración del Capital Circulante en la Rentabilidad de las PyMEs del sector confecciones en el periodo 2014 – 2016. La determinación de factores fue realizada mediante un análisis de panel con efectos fijos y aleatorios; los resultados evidenciaron una incidencia inversa en los días de cobro de las cuentas por cobrar, días
de inventario, días de pago a proveedores y liquidez con la Rentabilidad. Esto prueba que los gerentes pueden crear valor al reducir la cantidad actual de días promedio del capital circulante trabajo.
This study identifies the main factors that influence business decisions about the management of working capital in the profitability of SMEs in the clothing sector in the period 2014 - 2016. The determination of factors was made through a panel analysis with fixed effects and random; the results showed an inverse incidence in the days of collection of accounts receivable, days of inventory, days of payment to suppliers and liquidity with profitability. This proves that managers can create value by reducing the current number of average days of working capital.
2023-07-04
2023-07-04
2019
ARTÍCULO
1988-7116
http://dspace.ucuenca.edu.ec/handle/123456789/42345
https://www.proquest.com/scholarly-journals/efecto-de-la-gestión-del-capital-circulante-en/docview/2357384860/se-2?accountid=36749
10.3232/GCG.2019.V13.N3.02
es_ES
oai:dspace.ucuenca.edu.ec:123456789/379242022-02-08T10:02:15Zcom_123456789_21982com_123456789_15col_123456789_21983
Structural, enzymatic and pharmacological profiles of AplTX-II - A basic sPLA2 (D49) isolated from the Agkistrodon piscivorus leucostoma snake venom
Fernandes, Pedro Alexandrino
Ramos, Maria Joäo
Soares, Andreimar M.
Resende, Letícia M.
Almeida, José Rafael
Gauraca Medina, Tatiana Alejandra
Da Silva, Saulo Luis
Marangoni, Sérgio
Viegas, Matilde F.
Agkistrodon piscivorus leuscostoma
Basic sPLA2 D49
Molecular modeling
NOBA (4-nitro-3-octanoyloxy benzoic acid)
A basic sPLA2 (D49) from the venom of snake Agkistrodon piscivorus leucostoma (AplTX-II) was isolated, purified and characterized. We determined the enzymatic and pharmacological profiles of this toxin. AplTX-II was isolated with a high level of purity through reverse phase chromatography and molecular exclusion. The enzyme showed pI 9.48 and molecular weight of 14,003 Da. The enzymatic activity of the AplTX-II depended on Ca2+ pH and temperature. The comparison of the primary structure with other sPLA2s revealed that AplTX-II presented all the structural reasons expected for a basic sPLA2s. Additionally, we have resolved its structure with the docked synthetic substrate NOBA (4-nitro-3-octanoyloxy benzoic acid) by homology modeling, and performed MD simulations with explicit solvent. Structural similarities were found between the enzyme's modeled structure and other snake sPLA2 X-Ray structures, available in the PDB database. NOBA and active-site water molecules spontaneously adopted stable positions and established interactions in full agreement with the reaction mechanism, proposed for the physiological substrate, suggesting that NOBA hydrolysis is an excellent model to study phospholipid hydrolysis.
2022-02-02
2022-02-02
2021
ARTÍCULO
0141-8130
http://dspace.ucuenca.edu.ec/handle/123456789/37924
https://www.scopus.com/record/display.uri?eid=2-s2.0-85100730003&origin=resultslist&sort=cp-f&src=s&st1=Structural%2cenzymatic+and+pharmacological+profiles+of+AplTX-II+-+A+basic+sPLA2&sid=7a00c5c6bb0897d7d01ce4587afc6295&sot=b&sdt=b&sl=93&s=TITLE-ABS-KEY%28Structural%2c+enzymatic+and+pharmacological+profiles+of+AplTX-II+-+A+basic+sPLA2%29&relpos=0&citeCnt=1&searchTerm=
10.1016/j.ijbiomac.2021.01.187
es_ES
oai:dspace.ucuenca.edu.ec:123456789/371402021-11-02T10:02:03Zcom_123456789_21982com_123456789_15col_123456789_21983
La protección de la intimidad en el derecho tributario
Torres Rodas, Marlon Tiberio
Habeas Data
Derecho Tributario
Derecho a la Intimidad
En el estudio se hace un análisis de lo que es el derecho a la intimidad, aplicado en concreto al contribuyente. Se confronta este derecho con el también muy importante derecho a la información, del que puede hacer uso el Estado a través de la administración tributaria. Se hace un análisis de la naturaleza jurídica de estas dos garantías constitucionales, sus efectos, alcances y limitaciones en el marco del derecho constitucional y del derecho tributario.
Finalmente se estudia la garantía constitucional del hábeas data, centrándonos en lo referente a su aplicabilidad dentro de la esfera de lo tributario, cuando un contribuyente siente que la información que se tiene sobre él, y que es la que le sirve al fisco para determinar sus obligaciones tributarias, es imprecisa, errónea, o cree que se la está usando inadecuadamente.
2021-10-26
2021-10-26
2007
LIBRO
978-9978-19-143-9, 978-9978-84-433-5, 978-9978-22-650-6
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/37140
https://repositorio.uasb.edu.ec/handle/10644/218
es_ES
Universidad Andina Simón Bolívar, Corporación Editora Nacional, Ediciones Abya Yala
oai:dspace.ucuenca.edu.ec:123456789/359302021-03-30T10:01:29Zcom_123456789_21982com_123456789_15col_123456789_21983
El intento de suicidio y la desesperanza en la adolescencia
Quito Calle, Jessica Vanessa
Tamayo Piedra, Mónica
Tenemaza Ruilova, Vicente Marcelo
Quesada Orellana, Victor Manuel
Serrano Patten, Ana Caridad
Hernandez Rodriguez, Yenima de la Caridad
intento de suicidio
desesperanza
adolescencia
Introducción: El suicidio se puede dividir en tres categorías: suicidio consumado, intento suicida e ideación suicida. La situación actual de los y las adolescentes y las condiciones que inciden negativamente sobre su calidad de vida, se hacen evidentes cuando se analizan las estadísticas sobre el intento de suicidio, que representa situaciones límites y que hace referencia al fracaso social como proceso individual de vida. Objetivo: Identificar la frecuencia de intentos de suicidio y el estado de desesperanza presentes en los adolescentes. Metodología: Se trabajó con una población de 1469 adolescentes, matriculados en dos Instituciones Educativas de la ciudad de Cuenca: Colegio Nacional "Benigno Malo" y la Unidad Educativa Particular "Corazón de María". Para la recogida de datos se utilizaron el Cuestionario de Conducta Suicida (SBQ), que indaga sobre la frecuencia de ideas suicidas e intentos de suicidio y la Escala de desesperanza de Beck. Los datos fueron procesados mediante el programa estadístico SPSS. Resultados: Del total de adolescentes un 11.95% ha intentado suicidarse al menos una vez; de éstos, un 22.3% tiene dieciséis años. Respecto a la desesperanza se obtuvo que el 11.26% y 2,39% manifiestan niveles moderados y severos de desesperanza, respectivamente. Conclusiones: La desesperanza y la conducta suicida exhiben comportamientos que deben ser contemplados desde la intervención psicológica en adolescentes de Unidades Educativas Colegio Nacional "Benigno Malo" y "Corazón de María".
Introduction: Suicide can be divided into three categories: completed suicide, suicide attempt and suicidal ideation. The current situation of adolescents and the conditions that negatively affect their quality of life, are evident when analyzing the statistics on the suicide attempt, which represents extreme situations and which refers to social failure as an individual life process. Objective: To identify the frequency of suicide attemps and the state of despair present in adolescents. Methodology: The instrument used was the Suicide Behavior Questionary (SBQ) by Lilian Salvo and Roberto Melipillán that investigates the frequency of suicidal ideation and suicide attemps and the scale of Beck's despair that allows us to orient the state of despair experienced by the person, including in the study 1469 adolescents, enrolled in the Educational Institutions of the city of Cuenca: National School "Benigno Malo". and the Particular Educational Unit Corazón de María". Results: The results of this research were obtained throug the SPSS program showing that 11.95% of adolescents have attempted suicide once; of these, 22.3% turn out to be adolescents of sixteen years of age. In turn, 11.26% and 2.39% manifest a moderate despair and a severe despair, respectively. Conclusiones: Although the adolescent lives with both parents, there is the presence of suicide attempts more in women and the presence of states of despair, between mild and moderate.
2021-03-25
2021-03-25
2019
CAPÍTULO DE LIBRO
ISBN: 978-9942-27-092-4
0000-0000
https://killkana.ucacue.edu.ec/index.php/edunica/article/view/561
es_ES
Universidad Católica de Cuenca
oai:dspace.ucuenca.edu.ec:123456789/420992023-06-12T16:59:11Zcom_123456789_21982com_123456789_15col_123456789_21983
Obtaining recombinant proteins from Neosporacaninum expressed in Escherichia coli
Vallecillo Maza, Antonio Javier
Maldonado Rivera, Jaime Eduardo
Neosporosis
Proteínas antigénicas
ELISA
Neosporosisesunaenfermedadparasitariaconunimpactonegativoenlareproducciónbovina.EnEcuadorsehanreportadoseroprevalenciasdel22,3y23,4%enhatosdeproducciónlechera(Maldonado-Riveraetal.,2020;Román-CárdenasyChávez-Valdivieso,2016).Elcontroldeestaenfermedadrequieredelaidentificacióndelashembrasexpuestas-infectadas,afindeeliminarlasyconellaselriesgodetransmisiónvertical.Paraeldiagnósticoindirectosehanempleadovariasproteínasantigénicas,entrelasquedestacanelantígenodesuperficie4(SAG4porsussiglasenInglés)yelantígenodegránulosdensos7(GRA7porsussiglasenInglés),expresadasenEscherichiacoli(E.coli) y usadascomoantígenodecapturaenensayosdeELISAindirecto(Aguado-Martínezetal.,2008).Sinembargo,enelpaísnosecuentaconlaexperienciaenlaproduccióndeestetipodeinsumosnecesariosparaeldesarrollolocaldeherramientasdediagnósticoindirecto,queenlaactualidaddebenserimportadasconunaltocosto,limitandosudisponibilidadparaelcontroldelaNeosporosisbovina.Porello,seplanteóproducirlasproteínasrNcSAG4yrNcGRA7parasuusoeneldesarrollodeensayosinmunodiagnósticos
2023-06-12
2023-06-12
2022
ARTÍCULO
2075-8359
http://dspace.ucuenca.edu.ec/handle/123456789/42099
https://ojs.alpa.uy/index.php/ojs_files/article/view/3089/1704
10.53588/alpa.300606
es_ES
oai:dspace.ucuenca.edu.ec:123456789/342342020-08-01T01:06:24Zcom_123456789_21982com_123456789_15col_123456789_21983
Performance assessment of two-dimensional hydraulic models for generation of flood inundation maps in mountain river basins
Timbe Castro, Luis Manuel
Pinos Flores, Juan Andres
Water surface elevation
Ecuador
Flood extent
Flood modeling
High mountain river
Two-dimensional hydraulic models
Ecuador
Flood extent
Flood modeling
High mountain river
Two-dimensional hydraulic models
Water surface elevation
Hydraulic models for the generation of flood inundation maps are not commonly applied in mountain river basins because of the difficulty in modeling the hydraulic behavior and the complex topography. This paper presents a comparative analysis of the performance of four two-dimensional hydraulic models (HEC-RAS 2D, Iber 2D, Flood Modeller 2D, and PCSWMM 2D) with respect to the generation of flood inundation maps. The study area covers a 5-km reach of the Santa Barbara River located in the Ecuadorian Andes, at 2330 masl, in Gualaceo. The model's performance was evaluated based on the water surface elevation and flood extent, in terms of the mean absolute difference and measure of fit. The analysis revealed that, for a given case, Iber 2D has the best performance in simulating the water level and inundation for flood events with 20- and 50-year return periods, respectively, followed by Flood Modeller 2D, HEC-RAS 2D, and PCSWMM 2D in terms of their performance. Grid resolution, the way in which hydraulic structures are mimicked, the model code, and the default value of the parameters are considered the main sources of prediction uncertainty.
Abstract Hydraulic models for the generation of flood inundation maps are not commonly applied in mountain river basins because of the difficulty in modeling the hydraulic behavior and the complex topography. This paper presents a comparative analysis of the performance of four two-dimensional hydraulic models (HEC-RAS 2D, Iber 2D, Flood Modeller 2D, and PCSWMM 2D) with respect to the generation of flood inundation maps. The study area covers a 5-km reach of the Santa Barbara River located in the Ecuadorian Andes, at 2330 masl, in Gualaceo. The model's performance was evaluated based on the water surface elevation and flood extent, in terms of the mean absolute difference and measure of fit. The analysis revealed that, for a given case, Iber 2D has the best performance in simulating the water level and inundation for flood events with 20- and 50-year return periods, respectively, followed by Flood Modeller 2D, HEC-RAS 2D, and PCSWMM 2D in terms of their performance. Grid resolution, the way in which hydraulic structures are mimicked, the model code, and the default value of the parameters are considered the main sources of prediction uncertainty.
2020-05-06
2020-05-06
2019
ARTÍCULO
1674-2370
http://dspace.ucuenca.edu.ec/handle/123456789/34234
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85064252627&origin=inward
10.1016/j.wse.2019.03.001
es_ES
oai:dspace.ucuenca.edu.ec:123456789/424312023-07-18T20:09:54Zcom_123456789_21982com_123456789_15col_123456789_21983
Incipientes reflexiones sobre el instrumento golfín dentro de la capilla catedralicia de la Iglesia Matriz en Cuenca (Ecuador) en el siglo XIX
Molerio Rosa, Arleti Maria
Conjunto instrumental
Golfín
Catedral Matriz de Cuenca
El trabajo realiza un primer acercamiento al estudio del instrumento denominado golfín, dentro de la capilla catedralicia de la Iglesia Matriz de Cuenca en el sigloXIX. El misterio que encierra aún el esclarecimiento del instrumento en sí, propone una perspectiva analítica que devele un resultado productivo del tema. Sobre la base de fuentes inéditas del archivo catedralicio se ha establecido una reconstrucción de datos y observaciones exhaustivas que inicianla investigación, intentando responder las interrogantes que el tema no deja de formularnos. Lo presentado hasta este momento tiene el objetivo de exponer este estudio de caso a la comunidad científica con la finalidad de encontrar en otros investigadoresalguna información que permita consolidar las características del instrumento golfín.
The work makes a first approach to the study of the instrument called golfín, inside the cathedral chapel of the Matriz Church of Cuenca in the XIX century. The mystery that still encloses the clarification of the instrument itself, proposes an analytical perspective that unveils a productive result of the subject. On the basis of unpublished sources of the cathedral archives, a reconstruction of data and exhaustive observations has been established to initiate the reseach, trying to answer the questions that the subject does not cease to formulate. The objective of what has been presented up to this point is to expose this case study to the scientific community with the purpose of finding in other researchers some information that will allow to consolidate the characteristics of the golfíninstrument
2023-07-18
2023-07-18
2022
ARTÍCULO
2602-8158
http://dspace.ucuenca.edu.ec/handle/123456789/42431
https://publicaciones.ucuenca.edu.ec/ojs/index.php/revpos/article/view/4236/3025
es_ES
oai:dspace.ucuenca.edu.ec:123456789/430612023-10-05T19:26:56Zcom_123456789_21982com_123456789_15col_123456789_21983
A Novel Fuzzy-Logic-Based Control Strategy for Power Smoothing in High-Wind Penetrated Power Systems and Its Validation in a Microgrid Lab
Ochoa Correa, Danny Vinicio
Arevalo Cordero, Wilian Paul
Fuzzy logic control
Grid integration studies
Microgrid lab
Power smoothing
Supercapacitor
Variable-speed wind turbine
Wind power generation has undergone significant development in recent decades due to its environmental advantages and its economic competitiveness. However, its increasing level of penetration is not exempt from drawbacks, such as those derived from the fluctuating nature of the wind. To reduce its negative incidence on grid power quality and stability, different techniques have been developed, such as those based on power smoothing. In these techniques, there is a research gap on the adjustment of the time constant that adapts to the needs of the smoothing, avoiding uncertain results, computational efforts and delays in the response of the control. This paper addresses the problem, proposing a novel method for power smoothing in a wind turbine by using a fuzzy-logic-based supercapacitor storage system and time-constant fitting, with a first-order adaptive transfer function. The method considers as input variables the active power generated by the wind turbine and the state of charge of the supercapacitor, both sampled simultaneously. After a computation process, the proposal generates active power set-point values that the supercapacitor must produce to compensate for the intermittency of the wind, seen from the point of connection to the grid. The results were validated experimentally with comprehensive laboratory tests.
2023-10-05
2023-10-05
2023
ARTÍCULO
2079-9292
https://www.scopus.com/record/display.uri?eid=2-s2.0-85152916358&origin=resultslist&sort=plf-f&src=s&sid=a94afbe544c0b158fe02f9b85f89dda3&sot=b&sdt=b&s=TITLE-ABS-KEY%28A+Novel+Fuzzy-Logic-Based+Control+Strategy+for+Power+Smoothing+in+High-Wind+Penetrated+Power+Systems+and+Its+Validation+in+a+Microgrid+Lab%29&sl=153&sessionSearchId=a94afbe544c0b158fe02f9b85f89dda3
10.3390/electronics12071721
es_ES
oai:dspace.ucuenca.edu.ec:123456789/348982020-10-20T10:01:59Zcom_123456789_21982com_123456789_15col_123456789_21983
ICT management in mathematics education, a case study in Cuenca Ecuador
Gonzales Prado, Neli Norma
Trelles Zambrano, Cesar Augusto
Sanchez Peralta, Malhena De lourdes
Mora Oleas, Janeth Catalina
SOCIAL NETWORKS
TEACHING MATHEMATICS
MATHEMATICAL SOFTWARE
ICT
The purpose of the study is to determine the existence, management and use of information technologies (ICT) within the teaching - learning process for Mathematics in Cuenca ́s institutions of Unified General Baccalaureate, through the perception of students. For this purpose, a study was developed with a quantitative approach that reached the descriptive level. The type of research was prospective, cross-sectional and observational. We worked with a sample composed of 64 teachers of second and third year (59.3% men and 40.6% women) and 381 students (37.3% men and 62.7% women) of second year. The study concludes showing that the majority of teachers use ICT for teaching materials preparation, but only a small percentage do so as often as necessary. Likewise, it was found that search engines and word processors are the most used tools, and to a lesser extent, others more relevant to the learning of mathematics, such as Geogebra software.
The purpose of the study is to determine the existence, management and use of information technologies (ICT) within the teaching - learning process for Mathematics in Cuenca ́s institutions of Unified General Baccalaureate, through the perception of students. For this purpose, a study was developed with a quantitative approach that reached the descriptive level. The type of research was prospective, cross-sectional and observational. We worked with a sample composed of 64 teachers of second and third year (59.3% men and 40.6% women) and 381 students (37.3% men and 62.7% women) of second year. The study concludes showing that the majority of teachers use ICT for teaching materials preparation, but only a small percentage do so as often as necessary. Likewise, it was found that search engines and word processors are the most used tools, and to a lesser extent, others more relevant to the learning of mathematics, such as Geogebra software.
2020-10-18
2020-10-18
2018
ARTÍCULO DE CONFERENCIA
978-1-7281-0382-2
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/34898
https://ieeexplore.ieee.org/abstract/document/8783808
10.1109/LACLO.2018.00089
es_ES
IEEE
oai:dspace.ucuenca.edu.ec:123456789/382822022-06-14T10:01:52Zcom_123456789_21982com_123456789_15col_123456789_21983
Chemical reactions in H2O:CO interstellar ice analogs promoted by energetic heavy ion irradiation
Barros, Ana
Mejia Guaman, Christian Fernando
Seperuelo Duarte, Eduardo
Domaracka, Alicja
Boduch, Philippe
Rothard, Hermann
Da Silveira, Enio Frota
Astrochemistry
Methods
Laboratory
Solid state
Astronomical instrumentation
Methods and techniques
Spectroscopic
Interstellar medium (ISM)
Nebulae
Cosmic rays
Se condensó H 2 O:CO, en concentraciones de (3:2) y (10:1), sobre sustrato CsI a 15 K y se irradió con un haz de iones 58 Ni 11+ de 46 MeV. La radiólisis inducida por iones pesados rápidos se analizó mediante espectroscopia infrarroja (FTIR). Se observó la formación de nueve especies moleculares: CO 2 , H 2 O 2 , HCOOH, HCO, H 2 CO, 13 CO 2 , CH 3 OH, O 3 y C 3 O 2 . Para ambas concentraciones, dióxido de carbono (CO 2 ), formaldehído (H 2 CO), ácido fórmico (HCOOH) y peróxido de hidrógeno (H 2O 2 ) son las especies de productos más abundantes, y el dióxido de tricarbono (C 3 O 2 ) es mucho menos abundante. Se determinan las secciones transversales de destrucción de precursores y las secciones transversales de formación de productos. La sección eficaz de destrucción de CO para la concentración (3:2) es casi cinco veces mayor que la del agua, mientras que para la concentración (10:1) son prácticamente iguales. Los rendimientos de pulverización atómica se estiman para las dos películas de hielo, la masa total pulverizada es de aproximadamente 2,5 × 10 6 u por impacto. Estos resultados contribuyen a descifrar las rutas químicas de los compuestos sintetizados a partir de las dos especies orgánicas más abundantes (H 2O y CO) observados en los hielos de mantos granulares de las envolturas circunestelares y medio interestelar. Además, los resultados del hallazgo revelan que los porcentajes astronómicos moleculares son comparables a los obtenidos después de 15 eV molec −1 de dosis depositada en los experimentos actuales en comparación con la concentración relativa de moléculas en fase sólida observada en MYSO, LYSO, BG Stars y Comets.
H2O:CO, at concentrations of (3:2) and (10:1), was condensed on CsI substrate at 15 K and irradiated with 46 MeV 58Ni11 + ion beam. Radiolysis induced by fast heavy ions was analyzed by infrared spectroscopy (FTIR). The formation of nine molecular species, CO2, H2O2, HCOOH, HCO, H2CO, 13CO2, CH3OH, O3 and C3O2 was observed. For both concentrations, carbon dioxide (CO2), formaldehyde (H2CO), formic acid (HCOOH), and hydrogen peroxide (H2O2) are the most abundant products species, and tricarbon dioxide (C3O2) is much less abundant. Precursor destruction cross sections and formation cross sections of products are determined. The CO destruction cross section for the (3:2) concentration is almost five times higher than that of water, while those for the (10:1) concentration are practically the same. Atomic sputtering yields are estimated for the two ice films, the total mass sputtered is approximately 2.5 × 106 u per impact. These results contribute to figure out the chemical pathways of compounds synthesized from the two most abundant organic species (H2O and CO) observed in the ices of grain mantles of the circumstellar envelopes and interstellar medium. In additional, the finding results reveal that molecular astronomical percentages are comparable to those obtained after 15 eV molec−1 of deposited dose in current experiments compared with the relative concentration of molecules in solid phase observed in MYSO, LYSO, BG Stars, and Comets.
2022-03-03
2022-03-03
2022
ARTÍCULO
00358711
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stac171/6515962
10.1093/mnras/stac171
es_ES
oai:dspace.ucuenca.edu.ec:123456789/339072021-02-23T10:01:05Zcom_123456789_21982com_123456789_15col_123456789_21983
Estilos y estrategia de enseñanza-aprendizaje de estudiantes universitarios de la ciencia del suelo
Jiménez Alvarez, Leticia Salomé
Vega, Nataly
Capa Mora, Edwin Daniel
Fierro Jaramillo, Natacha Del cisne
Quichimbo Miguitama, Pablo Geovanny
Educación superior
Aprendizaje
Método de aprendizaje
Edfología
Ciencias del suelo
El propósito de esta investigación fue determinar los estilos de aprendizaje por género y carrera, así como las estrategias de enseñanza más efectivas en educación superior en Ecuador. Se tomó como grupo focal a estudiantes de Edafología de la Universidad Técnica Particular de Loja (UTPL) y se desarrolló un estudio descriptivo, utilizando el Cuestionario Honey-Alonso de Estilos de Aprendizaje (CHAEA); además, se consultaron las estrategias que más impactaron en la enseñanza. Las preferencias fueron de moderadas a bajas para los cuatro estilos de aprendizaje según la carrera y género; las estrategias más efectivas fueron: video, clase magistral y trabajo de campo-laboratorio-aula. Se evidenció que los educandos no aprenden de una única manera, sino que tienen diversos estilos de aprendizaje, por lo que se deberían aplicar estrategias que amplíen el rango de capacidades de aprendizaje.
This study sought to determine learning styles by sex and degree, as well as the most effective teaching strategies in higher education in Ecuador. With a focus group made up of edaphology students from the Private Technical University of Loja (UTPL), a descriptive study was conducted using the Honey-Alonso Learning Styles Questionnaire (CHAEA). The research also explored which teaching strategies had the greatest impact. Preferences by degree and sex were moderate to low for the four learning styles, and the most effective strategies were videos, lectures, and field-laboratory-classroom work. It was shown that students do not learn in just one way, but have different learning styles, and therefore strategies should be applied that respond to a wider range of learning capacities.
2020-02-03
2020-02-03
2019
ARTÍCULO
1607-4041
https://redie.uabc.mx/redie/article/view/1935/1729
10.24320/redie.2019.21.e04.1935
es_ES
oai:dspace.ucuenca.edu.ec:123456789/366102022-08-16T10:01:30Zcom_123456789_21982com_123456789_15col_123456789_21983
Criterios de selección de talentos para el levantamiento olímpico de pesas. Una revisión sistemática
Buñay Buñay, Francisco Javier
Loaiza Dávila, Lenin Esteban
Ávila Mediavilla, Carlos Marcelo
Aldas Arcos, Helder Guillermo
Levantamiento de pesas
Genética
Criterios de selección
Talento
Fuerza explosiva criterios
Somatotipo
El éxito que puede llegar a tener un entrenador para seleccionar un talento en un deporte
competitivo como el levantamiento olímpico de pesas, dependerá mucho de los criterios que aplique, considerando fundamentalmente las características específicas del deporte y las condiciones que debe tener un niño o adolescente para poder ser considerado dentro de la élite deportiva. Sin duda existen muchos criterios para seleccionar un talento, desde un proceso empírico hasta llegar a utilizar parámetros fisiológicos, de composición corporal y genético. Por tal motivo el objetivo del presente estudio fue determinar los criterios de selección de talentos para el levantamiento olímpico de pesas más eficientes y científicamente probados, mediante una revisión sistemática de los diversos criterios utilizados a nivel mundial, para ser considerados y aplicados, con el fin de unificarlos y que sirva como guía a los técnicos de este deporte a nivel nacional e internacional. La búsqueda de estudios se realizó en diez bases de datos científicas, determinando las publicaciones de los últimos 30 años en idioma inglés y español con un filtrando por relevancia. Se determinó 16 artículos potenciales que cumplieron con los parámetros establecidos para la presente revisión sistemática. Se evidenció un predominio de parámetros que evalúan la fuerza explosiva, la composición corporal y el somatotipo. Sistematizando los criterios a ser considerados como los más objetivos: cálculo del somatotipo, la prueba de salto vertical de cuclillas profunda, el salto largo sin carrera de impulso, el lanzamiento del balón medicinal de 2kg y la prueba de cuclillas de arranque.
The success that a coach can have in selecting a talent in a competitive sport such as Olympic weightlifting will depend a lot on the criteria applied, fundamentally considering the specific characteristics of the sport and the conditions that a child or adolescent must have to to be considered within the sports elite. Undoubtedly, there are many criteria for selecting a talent, from an empirical process to using physiological, body composition and genetic parameters. For this reason, the objective of this study was to determine the most efficient and scientifically proven criteria for selecting talents for Olympic weightlifting, through a systematic review of the various criteria used worldwide, to be considered and applied, in order to to unify them and to serve as a guide to the technicians of this sport at a national and international level. The search for studies was carried out in ten scientific databases, determining the publications of the last 30 years in English and Spanish with a filter by relevance. Sixteen potential articles that met the parameters established for the present systematic review were determined. A predominance of parameters that evaluate explosive strength, body composition and somatotype was evidenced. Systematizing the criteria to be considered as the most objective: calculation of the somatotype, the deep squat vertical jump test, the long jump without impulse run, the throw of the 2kg medicine ball and the snatch squat test.
2021-08-06
2021-08-06
2020
ARTÍCULO
ISSN-e 2550-682X
https://dialnet.unirioja.es/servlet/articulo?codigo=7659460
10.23857/pc.v5i11.1920
es_ES
oai:dspace.ucuenca.edu.ec:123456789/402492022-11-16T17:05:56Zcom_123456789_21982com_123456789_15col_123456789_21983
El acceso a la justicia de los pueblos y nacionalidades indígenas al derecho al medio ambiente sano en Ecuador. Caso Río Blanco
Bermeo Cabrera, Edgar Francisco
Martinez Moscoso, Fernando Andres
Abril Ortiz, Adriana Lorena
Consulta previa
Ecuador
Derechos colectivos
Medio ambiente sano
Acceso a la justicia
El trabajo analiza el caso El trabajo analiza el caso “Río Blanco”, en el cual la justicia ecuatoriana permitió el acceso a la justicia a pueblos indígenas para la protección de sus derechos (medio ambiente sano), ante la vulneración del debido proceso, ya que el Estado no realizó la consulta previa, libre e informada conforme el Convenio 169 de la OIT. El estudio evidencia que, pese a los esfuerzos consignados por parte del sistema judicial, aún existen deficiencias con respecto a conocimiento del derecho ambiental por parte de los operadores de justicia
This study analyzes the “Rio Blanco" judicial case, in which the Ecuadorian justice granted indigenous people the access to justice in order to protect their rights (to a healthy environment), because of the violation of due process by
the State, which did not develop the free, prior and informed consent , in concordance with the ILO Convention No. 169. This work indicates that despite the efforts made by the judicial system, judges still present deficiencies on their knowledge on environmental law
2022-11-16
2022-11-16
2019
CAPÍTULO DE LIBRO
978-956-8491-69-7
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/40249
https://biblioteca.cejamericas.org/bitstream/handle/2015/5641/Informe%20Ceja-Giz%20vol%201%2016-12_OK.pdf?sequence=3&isAllowed=y
es_ES
Centro de Estudios de Justicia de las Américas
oai:dspace.ucuenca.edu.ec:123456789/432372023-10-18T17:17:19Zcom_123456789_21982com_123456789_15col_123456789_21983
Análisis explicativo del liderazgo transformacional en el perfil emprendedor social de jóvenes universitarios
Alava Atiencie, Nubia Gabriela
Quinde Lituma, Maria Elena
Emprendimiento social
Liderazgo transformacional
Educación
Jóvenes universitarios
Perfil emprendedor social
El propósito de esta investigación es analizar el efecto del estilo de liderazgo transformacional y sus sub-dimensiones en el perfil emprendedor social de jóvenes estudiantes de la Universidad de Cuenca (Ecuador). La importancia del liderazgo transformacional en tiempos de crisis es cada vez mayor para el desarrollo del espíritu emprendedor social e innovador. El presente estudio es de tipo cuantitativo. Se aplica la técnica de encuesta para el levantamiento de información con un tamaño de muestra representativa de 856 estudiantes. Se realiza un análisis factorial exploratorio y se utiliza un modelo de regresión lineal múltiple. Los resultados muestran que el liderazgo transformacional incide positivamente en el perfil emprendedor social de las y los jóvenes estudiantes de la Universidad de Cuenca. En conclusión, la comunidad universitaria, en conjunto con las autoridades, deben trabajar en la mejora continua de las mallas curriculares y promover proyectos de vinculación e investigación enfocados en el emprendimiento social.
The purpose of this research study is to assess the effect of a transformational leadership style and its sub-dimensions on the social entrepreneurial profile of university students at the University of Cuenca (Ecuador). Transformational leadership in times of crisis is increasingly important for developing social and innovative entrepreneurship. The present study is quantitative. A survey is applied to gather data from a representative sample of 856 students. An exploratory factor analysis is performed, followed by a multiple linear regression model. The results show that transformational leadership positively affects the social entrepreneurial profile of university students at the University of Cuenca. In conclusion, the university’s community and administrative body should work conjointly to continuously improve the curriculum and to promote research project initiatives on social entrepreneurship.
2023-10-18
2023-10-18
2023
ARTÍCULO
0718-5006
http://dspace.ucuenca.edu.ec/handle/123456789/43237
https://www.scielo.cl/scielo.php?pid=S0718-50062023000200049&script=sci_arttext&tlng=pt
S0718-50062023000200049
es_ES
oai:dspace.ucuenca.edu.ec:123456789/371012021-10-26T10:02:28Zcom_123456789_21982com_123456789_15col_123456789_21983
Clinicopathological and molecular markers in metastasizing ameloblastoma: a systematic review of case reports
Buestan Zambrano, Juan Fernando
RODRIGUEZ COYAGO, MARIA LOURDES
Metastasizing
Metastasis
Ameloblastoma
Ameloblastoma is a benign odontogenic tumour that is aggressive and localised in nature, listed as the first or second most prevalent odontogenic tumour and rarely tends to metastasis, but when it does, it receives the definition adopted by the WHO in 2017 of metastasizing ameloblastoma.
Materials and Methods
This systematic review of clinical case reports of metastasizing ameloblastoma from the last 10 years, collected from PubMed, Science Direct and Cochrane digital databases, aims to search for association between clinical/pathological and/or molecular parameters of ameloblastoma and its metastatic potential.
Results
The targeted search yielded 14 publications with a total of 18 clinical cases, which showed a mean age for diagnosis of metastasizing ameloblastoma of 46 years, with no gender predilection and a high probability of occurrence in the yellow Asian race, favouring a pattern of distant dissemination. The highest frequency of metastasis was associated with mandibular primary lesions diagnosed in young patients, and, the most frequently found variant was the multicystic solid type, follicular subtype; distant metastasis was the predominant form of presentation, with the lungs being the main target. Conclusions
At the moment , there is nothing that can predict metastatic potential in ameloblastoma. More standardised studies exploring the molecular terrain are needed, as this is a key and understudied factor.
2021-10-22
2021-10-22
2021
ARTÍCULO
2582-3671
http://dspace.ucuenca.edu.ec/handle/123456789/37101
https://www.ijdscr.org/asset/images/uploads/16255037102687.pdf
es_ES
oai:dspace.ucuenca.edu.ec:123456789/289932020-08-01T01:14:26Zcom_123456789_21982com_123456789_15col_123456789_21983
Evaluation of the Penman-Monteith (FAO 56 PM) Method for Calculating Reference Evapotranspiration Using Limited Data
Cordova Mora, Mário Andrés
Carrillo Rojas, Galo Jose
Celleri Alvear, Rolando Enrique
Crespo Sanchez, Patricio Javier
Andes
Ecuador
Limited Data
Meteorological Data
Mountainous Regions
Penman-Monteith
Reference Evapotranspiration
Tropical Mountains
(Figure Presented) Reference evapotranspiration (ETo) is often calculated using the Penman-Monteith (FAO 56 PM; Allen et al 1998) method, which requires data on temperature, relative humidity, wind speed, and solar radiation. But in high-mountain environments, such as the Andean páramo, meteorological monitoring is limited and high-quality data are scarce. Therefore, the FAO 56 PM equation can be applied only through the use of an alternative method suggested by the same authors that substitutes estimates for missing data. This study evaluated whether the FAO 56 PM method for estimating missing data can be effectively used for páramo landscapes in the high Andes of southern Ecuador. Our investigation was based on data from 2 automatic weather stations at elevations of 3780 m and 3979 m. We found that using estimated wind speed data has no major effect on calculated ETo but that if solar radiation data are estimated, ETo calculations may be erroneous by as much as 24%; if relative humidity data are estimated, the error may be as high as 14%; and if all data except temperature are estimated, errors higher than 30% may result. Our study demonstrates the importance of using high-quality meteorological data for calculating ETo in the wet páramo landscapes of southern Ecuador.
2018-01-11
2018-01-11
2015-08-01
Article
2764741
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941630485&doi=10.1659%2fMRD-JOURNAL-D-14-0024.1&partnerID=40&md5=5c3f8c4aa87341fce44007384eafa370
http://dspace.ucuenca.edu.ec/handle/123456789/28993
10.1659/MRD-JOURNAL-D-14-0024.1
en_US
INTERNATIONAL MOUNTAIN SOCIETY
oai:dspace.ucuenca.edu.ec:123456789/359742021-05-04T10:01:32Zcom_123456789_21982com_123456789_15col_123456789_21983
Calidad de vida y variables asociadas: reflexiones, concepciones teóricas y los desafíos de su evaluación
Lima Castro, Sandra Eugenia
Bueno Pacheco, Gladys Alexandra
Arias Medina, William Paul
Aguilar Sizer, Monica Elisa
Cabrera Velez, Maria Marcela
Cordero Hermida, Maria Fernanda
Peña Contreras, Eva Karina
Racines Jerves, Daniel Andres
calidad de vida
reflexiones
concepciones teóricas
evaluación
Además, la intención este libro es reflejar la intensa necesidad que se tiene en el contexto ecuatoriano sobre el desarrollo de investigación sistemática en esta área, considerando que es el único camino que nos permite alejarnos de conocimientos superficiales y enfrentarnos a nuevas interrogantes. Por ello, se invita al lector a que se adentre en las páginas de esta obra, esperando que después de un análisis acucioso se encuentre motivado para conocer más acerca del diseño o adaptación de instrumentos psicométricos y la promoción de la calidad de vida y bienestar en la población.
2021-03-31
2021-03-31
2020
LIBRO
978-9942-822-66-6
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/35974
es_ES
Universidad de Cuenca
oai:dspace.ucuenca.edu.ec:123456789/431912023-10-13T19:52:31Zcom_123456789_21982com_123456789_15col_123456789_21983
Clinical-surgical Characteristics of Patients with Macular Hole. Exilaser Ophthalmological Center. Cuenca, Ecuador. 2015-2019
Guerrero Cabrera, Susana Teresa
Marquez Marchan, Andrea Carolina
Miotto Montesinos, Giuseppe Cornelio
Rojas Alvarez, Eduardo
Pino Urias, Naima
Vitrectomy
Visual health
Ophthalmology
MH
DeCS
Visual acuity
Background: The macular hole (MH) is one of the least studied ophthalmological pathologies; satisfactory treatment has been achieved through the implementation of surgical techniques a few years ago and the study and analysis of its clinical-surgical characteristics are of vital importance to assess the success of surgery with intrinsic and extrinsic factors. Objective: Describe the clinical-surgical characteristics of patients diagnosed with a macular hole at the EXILASER Ophthalmological Center in Cuenca in the period 2015-2019. Methods: Descriptive, retrospective study. The study universe corresponds to 75 patients who attended the EXILASER Ophthalmological Center and were diagnosed with MH between January-2015 and December-2019. Results: 76.0% of the patients are women; 81.3% are between 60 and 79 years old; 96.0% reside in urban areas; 34.7% are dedicated to housework; 24.0% report cataracts; 26.7% have arterial hypertension; 84.0% presented loss of central vision; 80.0% had decreased visual acuity. 50.7% presented affection only in the right eye; 53.3% had a chronic evolution greater than one year; 33.3% presented grade III MH. 44.0% had surgery; 93.9% had anatomical surgical closure. The relationship between the degree of MH, time of evolution, and closure of the MH was not significant (p> 0.05). Conclusion: The success rate of MH closure after surgical intervention is greater than 90% with improvement in postoperative visual acuity. No significant association was found between the grade of the MH, time of evolution, and the closure of the MH.
2023-10-13
2023-10-13
2023
ARTÍCULO
1874-3641
http://dspace.ucuenca.edu.ec/handle/123456789/43191
https://www.scopus.com/record/display.uri?eid=2-s2.0-85163737228&origin=resultslist&sort=plf-f&src=s&sid=5621846c0d51a1eb63f7d7da1b125429&sot=b&sdt=b&s=TITLE-ABS-KEY%28Clinical-surgical+Characteristics+of+Patients+with+Macular+Hole.+Exilaser+Ophthalmological+Center.+Cuenca%2C+Ecuador.+2015-2019%29&sl=140&sessionSearchId=5621846c0d51a1eb63f7d7da1b125429
10.2174/18743641-v17-e230608-2023-2
es_ES
oai:dspace.ucuenca.edu.ec:123456789/342122021-03-02T10:01:20Zcom_123456789_21982com_123456789_15col_123456789_21983
Factores fetales asociados a prematuridad
Diaz Granda, Ruth Cumanda
Díaz Granda, Lourdes Elizabeth
Factores de riesgo
Recién nacido prematuro
Nacimiento prematuro
Objetivo: identificar los factores fetales asociados a la prematuridad en el Hospital Vicente Corral de Cuenca-Ecuador en el periodo 2016-2017. Materiales y métodos: se diseñó un estudio de casos y controles, con contrastación doble, utilizando dos controles de igual edad posnatal y sexo por cada caso. De una población homogénea de neonatos menores de una semana de vida nacidos en el Hospital Vicente Corral de Cuenca-Ecuador en el periodo 2016-2017, se obtuvo una muestra de 160 casos y 320 controles. Se realizó un análisis estadístico descriptivo e inferencial, para establecer la asociación estadística se utilizó OR, IC 95% y significancia estadística con p-valor <0,05. Resultados: en el grupo de casos se encontró 75,0% prematuros tardíos y en el grupo control 62,5% nacidos a término completos. La prematuridad se asoció con: gemelaridad OR=7,36; IC 95%=2,61-20,74; p=0,000. Antecedente de hermano nacido pretérmino OR=2,96; IC 95%=1,61-5,44; p=0,000. Peso de nacimiento menor al percentil 10 OR=1,66; IC 95%=1,01-2,75; p=0,048. Los factores que no se asociaron con prematuridad fueron: sexo χ2=0,100; p-valor=0,752. Malformaciones congénitas mayores OR=2,02; IC 95%=0,40-10,12; p=0,405. Conclusiones: en el presente estudio predominaron en el grupo de casos los pretérmino tardíos y en el grupo control los nacidos a término completos. Los factores fetales verdaderamente asociados a prematuridad fueron: gemelaridad, el antecedente de hermano nacido pretérmino y peso de nacimiento menor al percentil 10; el sexo del neonato y las malformaciones congénitas mayores no se asociaron a la prematuridad.
Objective: to identify fetal factors associated with prematurity in the Vicente Corral Hospital of Cuenca-Ecuador in the 2016-2017 period. Materials and methods: a case-control study was designed, with double contrasts, using two controls of equal postnatal age and sex per each case. From a homogeneous population of infants less than one week of age born at the Vicente Corral Hospital in Cuenca-Ecuador in the period 2016-2017, a sample of 160 cases and 320 controls was obtained. A descriptive and inferential statistical analysis was performed, to establish the statistical association, OR, 95% CI and statistical significance with p-value <0,05 were used. Results: in the case group, they were 75,0% late premature and in the control group, they were 62,5% born full term. The prematurity was associated with: twinning OR=7,36; 95% CI=2,61-20,74; p=0,000. History of premature bother OR=2,96; 95% CI=1,61-5,44; p=0,000. Birth weight lower than the 10th percentile OR=1,66; 95% CI=1,01-2,75; p=0,048. The factors that were not associated with prematurity were: sex χ²=0,100; p-value=0,752. Major congenital malformations OR=2,02; 95% CI=0,40-10,12; p=0,405. Conclusions: In the present study, late preterm predominated in the case group and full term born in the control group. Fetal factors truly associated with prematurity were: twinness, the history of preterm born sibling and birth weight less than the 10th percentile; neonate sex and major congenital malformations were not associated with prematurity.
2020-05-01
2020-05-01
2020
ARTÍCULO
1657-320X , e 2339-3874
http://revistasum.umanizales.edu.co/ojs/index.php/archivosmedicina/article/view/3204
10.30554/archmed. 20.1.3204.2020
es_ES
oai:dspace.ucuenca.edu.ec:123456789/344342022-03-22T10:00:59Zcom_123456789_21982com_123456789_15col_123456789_21983
Supplementing a skimmed milk-egg yolk-based extender with L-carnitine helps maintain the motility, membrane integrity and fertilizing capacity of chilled ram sperm
Galarza Lucero, Diego Andres
López Sebastián, Antonio
Santiago Moreno, Julián
Chilled
Fertility
Lcarnitine
Ram sperm
Skimmed milk
Este estudio examina el efecto de la L-carnitina (LC) en el semen de carnero refrigerado almacenado hasta por 96 horas. Se recogieron muestras de semen, se colocaron en un diluyentes a base de leche desnatada + 6% de yema de huevo, se agruparon, se dividieron en alícuotas y se diluyeron con el mismo diluyente suplementado con diferentes concentraciones de LC: 0 (control), 1 mM (LC1), 2.5 mM (LC2.5) , 5 mM (LC5), 7,5 mM (LC7.5) o 10 mM (LC10). La cinética de los espermatozoides y las membranas (plasma, acrosoma y mitocondrial) se examinaron utilizando el sistema CASA y la tinción de fluorescencia triple (PI / PNA FITC / Mitotracker). La motilidad progresiva fue mayor (p <.05) con el tratamiento con LC7.5 que el esperma control a las 96 h. La velocidad curvilínea (p <.01) y el porcentaje de esperma con membranas intactas (plasma / acrosoma / mitocondrias) (p <.01) fueron mayores con todos los tratamientos de LC que el grupo control en todo momento. La velocidad en línea recta fue mayor (p <0,01) con los tratamientos con LC5 y LC7.5 que con el grupo de control después de 48 h. El grupo LC5 también devolvió valores de ALH más bajos (p <0,05) que los observados para los grupos de control después de 48 h. La capacidad de fertilización de las muestras LC5 almacenadas a 15 ° C durante 2 h (LC5-15 ° C-2h) y a 5 ° C durante 24 h (LC5-5 ° C-24h) se probó en tres grupos de ovejas mediante fijación cervical. tiempo de inseminación artificial. En dos grupos, la capacidad de fertilización del LC5-5 ° C-24h se redujo (p <0,001). Sin embargo, en el grupo restante, no se observaron diferencias significativas entre los espermatozoides LC5-15 ° C-2h y LC5-5 ° C-24h a este respecto (tasas de embarazo 52.4% versus 42.8%; p> 0,05). En general, los resultados actuales sugieren que complementar los diluyentes a base de leche descremada-yema de huevo con LC tiene un efecto positivo en las variables de esperma refrigerado y la capacidad de fertilización
This study examines the effect of L-carnitine (LC) on chilled ram semen stored for up to 96 hr. Semen samples were collected, placed in a skimmed milk + 6% egg yolk extender, pooled, aliquoted and diluted with the same extender supplemented with different LC concentration: 0 (control), 1 mM (LC1), 2.5 mM (LC2.5), 5 mM (LC5), 7.5 mM (LC7.5) or10 mM (LC10). Sperm kinetics and membranes (plasma, acrosome and mitochondrial) were examined using the CASA system and triple fluorescence staining (PI/ PNA-FITC/Mitotracker). The progressive motility was greater (p < .05) with LC7.5 treatment than the control sperm at 96 hr. The curvilinear velocity (p < .01) and the percentage of sperm with intact membranes (plasma/acrosome/ mitochondria) (p < .01) were greater with all LC treatments than the control group at all times. Straight line velocity was greater (p < .01) with LC5 and LC7.5 treatments than the control group after 48 hr. The LC5 group also returned lower ALH values (p < .05) than these seen for the control groups after 48 hr. The fertilizing capacity of LC5 samples stored at 15°C for 2 hr (LC5-15°C-2h) and at 5°C for 24 hr (LC5-5°C-24h) was tested in three ewe groups via cervical fixed-time artificial insemination. In two groups, the fertilizing capacity of the LC5-5°C-24h was reduced (p < .001). In the remaining group, however, no significant difference was seen between the LC5-15°C-2h and LC5-5°C-24h sperm in this respect (pregnancy rates 52.4% versus 42.8%; p > .05). Overall, the present results suggest that supplementing skimmed milk-egg yolk-based extenders with LC has a positive effect on chilled sperm variables and fertilizing capacity.
2020-06-04
2020-06-04
2020
ARTÍCULO
0936-6768, e 1439-0531
https://www.scopus.com/record/display.uri?eid=2-s2.0-85084449759&origin=resultslist&sort=plf-f&src=s&st1=Supplementing+a+skimmed+milk-egg+yolk-based+extender+with+L-carnitine+helps+maintain+the+motility%2cmembrane+integrity+and+fertilizing+capacity+of+chilled+ram+sperm&sid=41ce41dfa2c9516199fd5e06878e8ded&sot=b&sdt=b&sl=178&s=TITLE-ABS-KEY%28Supplementing+a+skimmed+milk-egg+yolk-based+extender+with+L-carnitine+helps+maintain+the+motility%2c+membrane+integrity+and+fertilizing+capacity+of+chilled+ram+sperm%29&relpos=0&citeCnt=5&searchTerm=
10.1111/rda.13687
es_ES
oai:dspace.ucuenca.edu.ec:123456789/402752022-11-18T16:52:24Zcom_123456789_21982com_123456789_15col_123456789_21983
Lessons from a single amino acid substitution: anticancer and antibacterial properties of two phospholipase A2-derived peptides.
Franchi, Gilberto C.
Almeida, José R.
Mendes, Bruno
Lancellotti, Marcelo
Passos, Óscar
Ramos, Maria J.
Fernandes, Pedro A.
Alves, Cláudia
Vale, Nuno
Gomes, Paula
Da Silva, Saulo Luis
Membrane
Venom peptides
Leucine
Agkistrodon
Phenylalanine
The membrane-active nature of phospholipase A2-derived peptides makes them potential candidates for antineoplastic and antibacterial therapies. Two short 13-mer C-terminal fragments taken from snake venom Lys49-PLA2 toxins (p-AppK and p-Acl), differing by a leucine/phenylalanine substitution, were synthesized and their bioactivity was evaluated. Their capacity to interfere with the survival of Gram-positive and Gram-negative bacteria as well as with solid and liquid tumors was assessed in vitro. Toxicity to red blood cells was investigated via in silico and in vitro techniques. The mode of action was mainly studied by molecular dynamics simulations and membrane permeabilization assays. Briefly, both peptides have dual activity, i.e., they act against both bacteria, including multidrug-resistant strains and tumor cells. All tested bacteria were susceptible to both peptides, Pseudomonas aeruginosa being the most affected. RAMOS, K562, NB4, and CEM cells were the main leukemic targets of the peptides. In general, p-Acl showed more significant activity, suggesting that phenylalanine confers advantages to the antibacterial and antitumor mechanism, particularly for osteosarcoma lines (HOS and MG63). Peptide-based treatment increased the uptake of a DNA-intercalating dye by bacteria, suggesting membrane damage. Indeed, p-AppK and p-Acl did not disrupt erythrocyte membranes, in agreement with in silico predictions. The latter revealed that the peptides deform the membrane and increase its permeability by facilitating solvent penetration. This phenomenon is expected to catalyze the permeation of solutes that otherwise could not cross the hydrophobic membrane core. In conclusion, the present study highlights the role of a single amino acid substitution present in natural sequences towards the development of dual-action agents. In other words, dissecting and fine-tuning biomembrane remodeling proteins, such as snake venom phospholipase A2 isoforms, is again demonstrated as a valuable source of therapeutic peptides.
2022-11-18
2022-11-18
2022
ARTÍCULO
1467-3037
http://dspace.ucuenca.edu.ec/handle/123456789/40275
https://www.scopus.com/record/display.uri?eid=2-s2.0-85123110418&origin=inward&txGid=0dfbd951e81c72d058171833923bf5be&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
10.3390/cimb44010004
es_ES
oai:dspace.ucuenca.edu.ec:123456789/440802024-03-05T19:37:25Zcom_123456789_21982com_123456789_15col_123456789_21983
Frontiers in páramo water resources research: A multidisciplinary assessment
Marin Molina, Franklin Geovanny
Crespo Sanchez, Patricio Javier
Climate change
Land use
Hydrosocial
Ecosystem services
Andes
Ecohydrology
Tropical
Sustainability
Social hydrology
Resilience
Political ecology
Multidisciplinary
Mountains
Interdisciplinary knowledge is necessary to achieve sustainable management of natural resources. However, research is still often developed in an exclusively disciplinary manner, hampering the capacity to holistically address environmental issues. This study focuses on páramo, a group of high-elevation ecosystems situated around ∼3000 to ∼5000 m a.s.l. in the Andes from western Venezuela and northern Colombia through Ecuador down to northern Peru, and in the highlands of Panama and Costa Rica in Central America. Páramo is a social-ecological system that has been inhabited and shaped by human activity since ∼10,000 years BP. This system is highly valued for the water-related ecosystem services provided to millions of people because it forms the headwaters of major rivers in the Andean-Amazon region, including the Amazon River. We present a multidisciplinary assessment of peer-reviewed research on the abiotic (physical and chemical), biotic (ecological and ecophysiological), and social-political aspects and elements of páramo water resources. A total of 147 publications were evaluated through a systematic literature review process. We found that thematically 58, 19, and 23 % of the analyzed studies are related to the abiotic, biotic, and social-political aspects of páramo water resources, respectively. Geographically, most publications were developed in Ecuador (71 % of the synthesized publications). From 2010 onwards, the understanding of hydrological processes including precipitation and fog dynamics, evapotranspiration, soil water transport, and runoff generation improved, particularly for the humid páramo of southern Ecuador. Investigations on the chemical quality of water generated by páramo are rare, providing little empirical support to the widespread belief that páramo environments generate water of high quality. Most ecological studies examined the coupling between páramo terrestrial and aquatic environments, but few directly assessed in-stream metabolic and nutrient cycling processes. Studies focused on the connection between ecophysiological and ecohydrological processes influencing páramo water balance are still scarce and mainly related to the dominant vegetation in the Andean páramo, i.e., tussock grass (pajonal). Social-political studies addressed páramo governance and the implementation and significance of water funds and payment for hydrological services. Studies directly addressing water use, access, and governance in páramo communities remain limited. Importantly, we found only a few interdisciplinary studies combining methodologies from at least two disciplines of different nature despite their value in supporting decision-making. We expect this multidisciplinary synthesis to become a milestone to foster interdisciplinary and transdisciplinary dialogue among individuals and entities involved in and committed to the sustainable management of páramo natural resources. Finally, we also highlight key frontiers in páramo water resources research, which in our view need to be addressed in the coming years/decades to achieve this goal
2024-03-05
2024-03-05
2023
ARTÍCULO
1879-1026
http://dspace.ucuenca.edu.ec/handle/123456789/44080
https://www.scopus.com/record/display.uri?eid=2-s2.0-85161003409&origin=resultslist&sort=plf-f&src=s&sid=5669a430e2df86115e84f018408ebbeb&sot=b&sdt=b&s=TITLE-ABS-KEY%28Frontiers+in+p%C3%A1ramo+water+resources+research%3A+A+multidisciplinary+assessment%29&sl=91&sessionSearchId=5669a430e2df86115e84f018408ebbeb&relpos=0
10.1016/j.scitotenv.2023.164373
es_ES
oai:dspace.ucuenca.edu.ec:123456789/368002021-09-28T10:01:44Zcom_123456789_21982com_123456789_15col_123456789_21983
Computational Analysis of Vulnerability to Reentry in Acute Myocardial Ischemia
Gómez García, Juan Francisco
Trénor Gomis, Beatriz Ana
Rodríguez Matas, José Félix
Ferrero De Loma-Osorio, José María
Carpio Garay, Edison Fernando
Ferrero De Loma-Osorio, José María
Vulnerable window
Computational simulation
Mathematical modeling
Acute myocardial ischemia
La influencia de cada componente isquémico (hipoxia, hiperpotasemia y acidosis) sobre la arritmogénesis es controvertida y difícil de estudiar experimentalmente. En el presente estudio, investigamos cómo los diferentes componentes isquémicos afectan la ventana vulnerable (VW) para la reentrada mediante simulaciones computacionales.
Las simulaciones se realizaron en un modelo biventricular 3D que incluye una región isquémica realista y el sistema de conducción His-Purkinje. A nivel celular, utilizamos una versión modificada del modelo de potencial de acción de O’Hara adaptado para simular isquemia aguda. Se simularon tres niveles diferentes de isquemia: leve, moderada y grave. Se analizaron los efectos sobre el ancho del VW de cada parámetro isquémico.
El modelo nos permitió obtener un patrón reentrante realista correspondiente a la taquicardia ventricular en todas las simulaciones. Los resultados sugieren que el nivel isquémico juega un papel importante en la generación de reentradas. Además, la hipoxia tiene el efecto más significativo en el ancho del VW. La presencia del sistema Purkinje es clave para la generación de reentradas.
The influence of each ischemic component (hypoxia, hyperkalemia, and acidosis) on arrhythmogenesis is controversial and difficult to study experimentally. In the present study, we investigate how the different ischemic components affect the vulnerable window (VW) for reentry using computational simulations.
Simulations were performed in a 3D biventricular model that includes a realistic ischemic region and the His-Purkinje conduction system. At the cellular level, we used a modified version of the O’Hara action potential model adapted to simulate acute ischemia. Three different levels of ischemia were simulated: mild, moderate, and severe. The effects on the width of the VW of each ischemic parameter were analyzed.
The model allowed us to obtain a realistic reentrant pattern corresponding to ventricular tachycardia in all simulations. Results suggest that the ischemic level plays an important role in the generation of reentries. Furthermore, hypoxia has the most significant effect on the width of the VW. The presence of Purkinje system is key to the generation of reentries.
2021-09-22
2021-09-22
2020
ARTÍCULO DE CONFERENCIA
978-172817382-5
23258861
http://dspace.ucuenca.edu.ec/handle/123456789/36800
https://doi.org/10.22489/CinC.2020.241
10.22489/CinC.2020.241
es_ES
IEEE Computer Society
oai:dspace.ucuenca.edu.ec:123456789/388482022-04-26T10:02:34Zcom_123456789_21982com_123456789_15col_123456789_21983
Enfoque espontáneo en estructuras matemáticas: patrones y clasificación
Bojorque Iñegues, Gina Catalina
Verschaffel, Lieven
Torbeyns, Joke
Wijns, Nore
Gonzales Prado, Neli Norma
niños
Mathematical structures
Patterns
Sorting
Preschool
children
Patrones
Clasificación
Preescolar
Nivel socioeconómico
El propósito del estudio fue examinar si los niños preescolares se enfocan espontáneamente en estructuras matemáticas –patrones y clasificación– y si dicho enfoque se asocia con sus habilidades para trabajar patrones. La metodología fue cuantitativa de tipo descriptivo y comparativo. Participaron en el estudio 60 preescolares que fueron evaluados al finalizar el año escolar. Los resultados indicaron que la mayoría de ellos se enfoca espontáneamente en crear una estructura matemática y que no existe asociación entre su tendencia a enfocarse en estructuras matemáticas y su habilidad para trabajar patrones. No se observaron diferencias en el enfoque espontáneo relacionadas al género ni al nivel socioeconómico. Se concluye que estos resultados permiten apuntar a la naturaleza universal del enfoque espontáneo en estructuras matemáticas.
2022-04-21
2022-04-21
2021
ARTÍCULO
1390-5473, e 2588-0969
http://dspace.ucuenca.edu.ec/handle/123456789/38848
https://revistas.uees.edu.ec/index.php/Podium/article/view/653
10.31095/podium.2021.40.8
es_ES
oai:dspace.ucuenca.edu.ec:123456789/429732023-10-02T19:04:19Zcom_123456789_21982com_123456789_15col_123456789_21983
Experimental validation of a novel power smoothing method for on-grid photovoltaic systems using supercapacitors
Benavides Padilla, Dario Javier
Arevalo Cordero, Wilian Paul
Power smoothing
Predictor corrector
State of charge
Supercapacitor
Photovoltaic power generation
Renewable energy sources have been widely developed in grid-connected systems. However, a challenge to overcome is the random characteristic of renewable resources such as solar irradiance, photovoltaic power fluctuations caused by cloud movement could cause instability of the utility grid. To solve this drawback, several authors have proposed various power smoothing methods for photovoltaic systems using supercapacitors. Nevertheless, sizing optimization and operability of the supercapacitor has not been properly studied. Forecasting power fluctuations is an important strategy to avoid the unnecessary operation of the supercapacitor in certain cases. In this paper, a novel power smoothing method (predictor – corrector) using supercapacitors for a grid-connected photovoltaic system is proposed, the method consists of two stages, prediction and correction. The main novelty of the new method is the use a simple k-means algorithm application model in the cycle estimation stage for supercapacitors, with the aim of selecting representative data of power fluctuations and supercapacitor charge/discharge cycles. Then, for the correction stage, the novel proposed method uses ramp rate algorithms to generate the reference signal to control the state of charge of the supercapacitor. The validation of the new proposed method has been done through exhaustive laboratory experiments under different cloudiness events. The results show that the energy losses when applying the new method are lower with respect to the moving average and ramp rate methods. Furthermore, the number of technical violations is reduced, demonstrating the feasibility of the proposed method to ensure successful mitigation of PV power fluctuations.
2023-10-02
2023-10-02
2023
ARTÍCULO
0142-0615
http://dspace.ucuenca.edu.ec/handle/123456789/42973
https://www.scopus.com/record/display.uri?eid=2-s2.0-85149666543&origin=resultslist&sort=plf-f&src=s&sid=b48000d9a73752ed68361ab8f79639a2&sot=b&sdt=b&s=TITLE-ABS-KEY%28Experimental+validation+of+a+novel+power+smoothing+method+for+on-grid+photovoltaic+systems+using+supercapacitors%29&sl=127&sessionSearchId=b48000d9a73752ed68361ab8f79639a2
10.1016/j.ijepes.2023.109050
es_ES
oai:dspace.ucuenca.edu.ec:123456789/442732024-03-12T21:42:45Zcom_123456789_21982com_123456789_15col_123456789_21983
Social Entrepreneurship: A Bibliometric Analysis of Its Fields of Study
Coronel Pangol, Katherine Tatiana
Aguirre Quezada, Juan Carlos
Mora Pacheco, Pedro Fabian
Duran Andrade, Maria Karina
Heras Tigre, Domenica Del carmen
Bibliometric analysis
SciMAT
Social entrepreneurship
Social Entrepreneurship, one of the branches of Entrepreneurship, has acquired important relevance because it has both social and financial purposes and has become a necessary mechanism to combat social exclusion, revitalize disadvantaged areas, provide employment opportunities, and address social problems neglected by the public and private sectors. In recent years, there has been a growing interest in the subject among academics and entrepreneurs, but there is still research that lacks an adequate conceptualization. Therefore, this article aims to identify the main lines of research on social entrepreneurship through a bibliometric analysis. To carry out the analysis, a study of both publication performance and word co-occurrence of 3023 articles extracted from Web of Science during the period 1993–2022 was performed using the SCIMAT v1.1.04 software for data processing. It was found that the year 2022 was the year with the highest scientific production, and a strong relationship was established between social entrepreneurship and gender and economic development issues. As a result of the analysis, possible lines of future research are proposed, and these can contribute to fill the existing knowledge gaps on social entrepreneurship and promote a better understanding of the topic.
2024-03-12
2024-03-12
2023
ARTÍCULO
2071-1050
https://www.scopus.com/record/display.uri?eid=2-s2.0-85172896456&doi=10.3390%2fsu151813432&origin=inward&txGid=778f5429279f5989314b92bf25a11946
10.3390/su151813432
es_ES
oai:dspace.ucuenca.edu.ec:123456789/355102021-02-09T10:04:06Zcom_123456789_21982com_123456789_15col_123456789_21983
Análisis del gasto turístico en los segmentos de mercado baby boomers, generación X y millennials; que visitan la ciudad de Cuenca, Ecuador
Astudillo Duran, Silvana Vanessa
Maldonado Becerra, Kevin Guillermo
Maldonado Vivar, Chris Briar
Baby Boomers
Generación X
Millennials
Gasto turístico
Cuenca
Este artículo tiene como objetivo caracterizar el gasto turístico de manera comparativa en tres segmentos de mercado turístico, basado en la generación a la que pertenecen Baby Boomers, Generación X y Millennials en la ciudad de Cuenca-Ecuador. Las generaciones están marcadas por periodos de tiempo y grandes cambios en su contexto social: culturales, económicos, tecnológicos, entre otros que provoca diferencias en sus intereses, necesidades y hábitos de consumo. Este estudio tiene un alcance descriptivo de corte transversal y para la comparación de la variable gasto turístico se utilizó el test estadístico ANOVA y la prueba de Tukey. Los resultados obtenidos revelan que existe una diferencia estadística significativa entre los promedios de gasto que generan los turistas y su generación. En este sentido, entender y caracterizar las distintas generaciones de turistas que visitan la ciudad de Cuenca y contrastarlos entre sí permite generar estrategias y productos específicos para estos mercados, así como el punto de partida para futuras investigaciones.
This paper aims to characterize tourism spending in a comparative way in three segments of the tourism market, based on the generation to which they belong: Baby Boomers, Generation X and Millennials in the city of Cuenca-Ecuador. The generations are marked by periods of time and major changes in their social context: cultural, economic, technological, among others that causes differences in their interests, needs and consumption habits. This study has a descriptive cross-sectional scope and for the comparison of the tourist expenditure variable applied in 384 tourists. The ANOVA statistical test and the Tukey’s multiple comparison test were used. The results reveal that there is a significant statistical difference between the average expenditure generated by tourists and their generation. In this sense, understanding and characterizing the different generations of tourists who visit the city of Cuenca and contrasting them with each other allows generating specific strategies and products for these markets, as well as the starting point for future research
2021-01-22
2021-01-22
2020
ARTÍCULO
1390-2849, e 2600-5786
http://universidadverdad.uazuay.edu.ec/article/download/265/427
10.33324/uv.vi76.265
es_ES
oai:dspace.ucuenca.edu.ec:123456789/410372023-02-14T16:20:59Zcom_123456789_21982com_123456789_15col_123456789_21983
Uso y eficacia de la mascarilla frente al COVID-19
Sigüenza Peñafiel, Gladys Salomé
Torres Criollo, Larry Miguel
Campoverde Cisneros, Manuel Alfredo
Reyes Reinoso, Johanna Rosali
Loyola Altamirano, Leslie Xiomara
Ramírez Arévalo, Pamela Alexandra
Infección por Infecciones por Coronavirus
Mascarilla N95
Distanciamiento Social
Pandemia por el nuevo Coronavirus
El presente estudio de índole investigativo tuvo como punto inicial ahondar en un tema de contingencia sanitaria. a la que llamamos pandem1a de la COVID 19, conocida como una enfermedad dada por el virus del SARS-CoV2. que se transmite de persona a persona alacando al organismo de manera repentina y agresivamente Además se ha observado que esta infección ha provocado un grave problema. tanto en la salud física, mental. emocional y económica de la sociedad ecuatoriana, como a nivel mundial; así, también como la falta de información sobre el manejo correcto de las mascarillas y la eficacia que tienen cada una de ellas, por ello, se realizó una revisión sistemática de bibliografía de alto impacto científico, con la finalidad de aportar información clara y precisa sobre cada aspecto y características de las mismas. El objetivo principal es reconocer la importancia sobre el uso adecuado de los diferentes tipos de mascarillas, para aplacar el contagio de la COVID -19; y, determinar la eficacia que existe para prevenir la propagación. La metodología que se utilizó en este estudio fue realizar una revisión sistemática de tipo descriptivo y explicativo, sobre el uso de las mascarillas, tipos y eficacia que tienen las mismas, por medio de un base de datos científicos como: SCOPUS, GOOGLE ACADÉMICO, SCIELO, TAYLOR&FRANCIS, PUBMED. Los resultados que se obtuvieron en este estudio, fueron, que las mascarillas KN95 tienen mayor eficacia que las quirúrgicas, arrojando un porcentaje del 98,9% y un 78,6% respectivamente. Por tanto, se llega a la conclusión de que el uso de las mascarillas KN95 disminuye el contagio de la COVID-19, además del cumplimiento de otras normas de prevención, brinda mayor seguridad y evita la propagación del virus.
The present study of investigative nature, had as an initial point to delve into a health contingency issue, which
we call COVID-19 pandemic, known as a disease caused by the SARS-CoV2 virus, which is transmitted from person to person, attacking the body suddenly and aggressively.
In addition, it has been observed that this infection has caused a serious problem, both in the physical, mental, emotional and economic health of the Ecuadorian society, as well as worldwide, as well as the lack of information on the correct handling of the masks and the effectiveness of each one of them, therefore, a systematic review of high scientific impact literature was conducted, in order to provide clear and accurate information on each aspect and characteristics of the same. The main objective is to recognize the importance of the adequate use of the different types of masks to reduce the spread of COVID-19 and to determine their effectiveness in preventing its propagation. The methodology used in this study was to carry out a systematic review of descriptive and explanatory type, on the use of masks, types and their effectiveness, by mea ns of a scientific data base such as: SCOPUS, GOOGLE ACADEMIC, SCIELO, TAYLOR&FRANCIS, PUBMED. The results obtained in this study, was, that KN95 masks have greater efficacy than surgical masks, yielding a percentage of 98.9% and 78.6% respectively. Conclusions: The use of masks decreases the contagian of COVID-19, in addition to compliance with other prevention norms, provides greater safety and avoids the spread of the virus.
2023-02-14
2023-02-14
2022
CAPÍTULO DE LIBRO
978-9942-7063-0-0
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/41037
https://editorialredlic.com/wp-content/uploads/2022/12/Investigacion-Formativa-durante-la-Pandemia-por-Covid-19-Capitulo-1.pdf
https://doi.org/10.16921/redlic.1.1
es_ES
Red Editorial Latinoamericana de Investigación Contemporánea
oai:dspace.ucuenca.edu.ec:123456789/342922020-08-01T01:02:44Zcom_123456789_21982com_123456789_15col_123456789_21983
Maintaining the quality of mangoes in ethylene’s absorption system
Quisen, Maria
Delic, Regina
Quoirin, Gould
Sistema de absorción de etileno
Mango
Calidad
Conservación
Las plantas tienen una capacidad casi ilimitada para sintetizar sustancias aromáticas, la mayoría de las cuales son fenoles o derivados. Muchos compuestos son responsables del sabor de las plantas, y algunas de las hierbas y especias utilizadas por los humanos para sazonar el rendimiento alimentario, compuestos medicinales útiles.
Se ha informado que los aceites esenciales de varias plantas, incluidas las especies de eucalipto y canela, muestran actividad contra una amplia gama de patógenos de plantas.
El objetivo de este trabajo es evaluar la calidad de los mangos en el sistema de absorción de etileno.
© 2019, Universidad del Zulia. All rights reserved. Plants have an almost limitless ability to synthesise aromatic substances, most of which are phenols or derivatives. Many compounds are responsible for plant flavour, and some of the herbs and spices used by humans to season food yield, useful medicinal compounds. Essential oils from a number of plants, including Eucalyptus and Cinnamon species have been reported to show activity against a wide array of plant pathogens. The objective of this present work is to evaluate the quality of mangoes in ethylene’s absorption system.
2020-05-13
2020-05-13
2019
ARTÍCULO
03787818
http://dspace.ucuenca.edu.ec/handle/123456789/34292
http://agronomiajournal.com/index.php/path/article/view/681/660
es_ES
oai:dspace.ucuenca.edu.ec:123456789/411592023-05-18T17:50:16Zcom_123456789_21982com_123456789_15col_123456789_21983
Evaluación y acreditación de la educación superior en Ecuador: La Universidad de Cuenca como caso de estudio
Cabrera Ortiz, Freddy Patricio
Jerves Hermida, Elena Monserrath
Educación superior
Evaluación
Acreditación
Políticas
Ecuador
El presente trabajo se enmarca en el campo de estudios sobre Educación Superior, en particular, sobre las políticas de evaluación y acreditación en Latinoamérica, con un enfoque en el Ecuador. De manera específica, el estudio se desarrolló con el propósito de comprender los diferentes aspectos que estructuraron el proceso de evaluación y acreditación institucional de la Universidad de Cuenca, en el período 2013-2017. Para este fin, se utilizó un abordaje cualitativo, apoyándose en la tradición de los estudios de caso con énfasis en la política, desde el entendimiento que los procesos de implementación y los cambios institucionales constituyen un objeto privilegiado de análisis. Como estrategia para el relevamiento de la información se aplicó el análisis documental, bibliográfico y la revisión de literatura, así como la realización de 12 entrevistas a profundidad a actores estratégicos que intervinieron en el proceso. El estudio devela que la Universidad de Cuenca, descubre en la voluntad política de sus autoridades, el compromiso e involucramiento de su comunidad universitaria, así como la revisión y ordenamiento de sus procesos, las mejores estrategias para enfrentar los procesos de evaluación y acreditación institucional.
This work is framed in the field of studies on Higher Education and particularly, on
evaluation and accreditation policies in Latin America, focusing on Ecuador. Particularly, the study was developed with the purpose of understanding the different aspects
that structured the institutional evaluation and accreditation process in the University
of Cuenca between 2013-2017. For this purpose, a qualitative approach was used as a
methodological strategy, relying on the tradition of case studies with emphasis on
politics; based on the understanding that implementation processes and institutional
changes constitute a privileged subject of analysis. Documentary and bibliographic
analysis and literature review were used as a strategy for information gathering, as
well as 12 in-depth interviews with strategic actors who intervened in the process.
The study reveals that the University of Cuenca discovers in the political will of its au-
thorities, the commitment and involvement of its university community, as well as the
review and organization of its processes, the best strategies to face the institutional
evaluation and accreditation processes.
2023-02-28
2023-02-28
2022
ARTÍCULO
2610-7759
https://www.iesalc.unesco.org/ess/index.php/ess3/article/view/v34i1-6
10.54674/ess.v34i1.565
es_ES
oai:dspace.ucuenca.edu.ec:123456789/405322022-12-19T16:12:57Zcom_123456789_21982com_123456789_15col_123456789_21983
Automedicación en gestantes atendidas en el Hospital Vicente Corral Moscoso
Illescas Cando, Hernan Esteban
Tapia Cardenas, Jeanneth Patricia
Automedicación
Mujer embarazada
Embarazo
Introducción: la automedicación en la gestación implica un riesgo significativo tanto para la madre como el producto, siendo mayor en los inicios de la fase de organogénesis.Objetivo: determinar la frecuencia y características de la automedicación en gestantes atendidas en el Hospital Vicente Corral Moscoso, Cuenca, periodo agosto- septiembre 2019.Metodología: estudio descriptivo, de corte transversal. Se aplicaron encuestas a 175 gestantes que cumplieron los criterios de inclusión. La muestra se calculó con base en una población finita y fue no probabilística. Los datos fueron procesados mediante estadística descriptiva en el programa SPSS 15. El estudio fue aprobado por el Comité de Bioética de la Universidad Católica de Cuenca. Resultados: la prevalencia de automedicación en la gestación fue 12.6%. La mayor frecuencia se observó en mujeres de 25 a 29 años con un 31.8%; instrucción secundaria con 50%; áreas rurales en un 59.1% y nivel socioeconómico bajo en 72.6%. Un 81.8% se automedicaron por indicación del farmacéutico, con analgésicos en un 72.7%; por presentar cefalea en el 77.3% de los casos; el 54.5% se automedicó en el primer trimestre de la gestación y un 13.6% refirió haber tenido efectos adversos. Conclusiones: la automedicación en el embarazo es más frecuente en mujeres residentes en zonas rurales de 25 a 29 años, con instrucción secundaria y por indicación del dependiente de la farmacia. Los fármacos más utilizados son analgésicos, el malestar general y la cefalea fueron los síntomas prevalentes. La mayoría de pacientes se automedicaron durante el primer trimestre de gestación.
Introduction: self-medication during pregnancy implies a significant risk for both the mother and the fetus, being higher at the beginning of the organogenesis phase.Objective: to determine the frequency and factors associated with self- medication in pregnant women who attend to the Vicente Corral Moscoso public hospital in Cuenca, during the period August-September 2019.Methodology: a descriptive, cross-sectional study was carried out. Surveys were applied to 175 pregnant women who met the inclusion criteria. The sample was calculated based on a finite population and was non-probabilistic. Data were processed using descriptive statistics in the SPSS 15 program. The study was approved by the Bioethics Committee of the Catholic University of Cuenca.Results: the prevalence of self-medication during pregnancy was 12.6%. The highest frequency was observed in women between 25 and 29 years old with 31.8%; secondary education with 50%; rural areas in 59.1% and low socioeconomic level in 72.6%. A total of 81.8% self-medicated at the pharmacist’s recommendation, with analgesics in 72.7%; for presenting headache in 77.3% of cases; the 54.5% self-medicated in the first trimester of pregnancy and 13.6% reported having had adverse effects.Conclusions: self-medication during pregnancy is more frequent in women living in rural areas between the ages of 25 and 29, with secondary education and as indicated by the pharmacy clerk. The most used drugs are analgesics, general malaise and headache were the prevalent symptoms. Most of the patients self-medicated during the first trimester of pregnancy.
2022-12-19
2022-12-19
2022
ARTÍCULO
1390-4450, e 2661-6777
https://publicaciones.ucuenca.edu.ec/ojs/index.php/medicina/article/view/3643/3252
0.18537/RFCM.40.01.03
es_ES
oai:dspace.ucuenca.edu.ec:123456789/429942023-10-03T13:21:14Zcom_123456789_21982com_123456789_15col_123456789_21983
Inequity and vulnerability in Latin American Indigenous and non-Indigenous populations with rheumatic diseases: a syndemic approach
Guevara Pacheco, Sergio Vicente
Statistics and research methods
Public health
Rheumatology
Epidemiology
Syndemics are a framework that documents health inequities and vulnerabilities in populations with rheumatic diseases. Compared with other approaches, syndemics are able to conjunctly consider epidemiological, biological, sociodemographic and economic factors, and their interactions. Objective To estimate health inequity and vulnerability among Indigenous and non-Indigenous populations with rheumatic and musculoskeletal diseases (RMD) in Latin America using the syndemic approach. Design This is a secondary analysis of a previously published large-scale study on the prevalence of RMD. Setting Studies carried out in five Latin American countries (Argentina, Colombia, Ecuador, Mexico and Venezuela). Health inequity and vulnerability in RMD were identified through a syndemic approach using network and cluster analysis. Participants A total of 44 560 individuals were studied: 29.78% self-identified as Indigenous, 60.92% were female, the mean age was 43.25 years. Twenty clusters were identified in the Indigenous population and 17 in the non-Indigenous population. Results The variables associated with RMD among Indigenous populations were rurality, public health system, high joint biomechanical stress, greater pain, disability and alcoholism; and among non-Indigenous people they were being a woman, urban origin, older age, private health system, joint biomechanical stress, greater pain and disability. We identified different health inequities among patients with RMD (ie, lower educational attainment, more comorbidities), associated with factors such as Indigenous self-identification and rural residence. Conclusions A syndemic approach enables us to identify health inequities in RMD, as shown by higher prevalence of comorbidities, disability and socioeconomic factors like lower educational attainment. These inequities exist for the overall population of patients with RMD, although it is more evident in Indigenous groups with added layers of vulnerability. © Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
2023-10-03
2023-10-03
2023
ARTÍCULO
20446055
http://dspace.ucuenca.edu.ec/handle/123456789/42994
https://www.scopus.com/record/display.uri?eid=2-s2.0-85150892646&origin=resultslist&sort=plf-f&src=s&sid=20ed640f4ededd2d7d7cd9e57de45ed5&sot=b&sdt=b&s=TITLE-ABS-KEY%28Inequity+and+vulnerability+in+Latin+American+Indigenous+and+non-Indigenous+populations+with+rheumatic+diseases%3A+a+syndemic+approach%29&sl=146&sessionSearchId=20ed640f4ededd2d7d7cd9e57de45ed5
10.1136/bmjopen-2022-069246
es_ES
oai:dspace.ucuenca.edu.ec:123456789/395692022-08-09T10:02:52Zcom_123456789_21982com_123456789_15col_123456789_21983
Case report of retarded catatonia: always consider catatonia as a differential diagnosis of altered mental status
López, José
Córdova, Sandra
Muñoz Verdugo, Irma Andrea
Psychiatry and mental health
Electroconvulsive therapy
Benzodiazepines
Catatonia
Background: Catatonia is a rare neuropsychiatric condition; it is estimated that around 10% of patients with mood disorders present signs and symptoms of catatonia. A catatonic syndrome is characterised by mutism, negativism, rigidity, and stupor. Case report: We report the case of a 59-year-old patient with a medical history of bipolar disorder who was admitted to the internal medicine service due to a seizure episode. During hospitalisation, the patient presented significant worsening of her clinical condition, showing marked symptoms of stupor and catatonia. Once the neurological and metabolic etiologies of altered mental status had been ruled out, pharmacological treatment with high doses of lorazepam was started. The patient had a complete clinical remission, and her evolution was favourable without any complications. Electroconvulsive therapy was recommended as a definitive treatment. Conclusions: The diagnosis of catatonia is a challenge for both hospitalists and psychiatrists due to the clinical presentation of catatonia. In reporting this clinical case, we want to emphasise the importance of taking into account the catatonic syndrome in our differential diagnoses in patients with altered mental status.
2022-08-03
2022-08-03
2022
ARTÍCULO
0034-7450
http://dspace.ucuenca.edu.ec/handle/123456789/39569
https://www.scopus.com/record/display.uri?eid=2-s2.0-85126554558&origin=resultslist&sort=plf-f&src=s&st1=Case+Report+of+Retarded+Catatonia%3a+Always+Consider+Catatonia+as+a+Differential+Diagnosis+of+Altered+Mental+Status&sid=52838ee3f5aa39694f8d06452a0516fa&sot=b&sdt=b&sl=128&s=TITLE-ABS-KEY%28Case+Report+of+Retarded+Catatonia%3a+Always+Consider+Catatonia+as+a+Differential+Diagnosis+of+Altered+Mental+Status%29&relpos=0&citeCnt=0&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1,FEATURE_EXPORT_REDESIGN:0
10.1016/j.rcp.2022.02.003
es_ES
oai:dspace.ucuenca.edu.ec:123456789/437362024-01-22T17:44:47Zcom_123456789_21982com_123456789_15col_123456789_21983
Sintomatología Psicológica de Mujeres Víctimas de Violencia en Relación de Pareja. Universidad de Cuenca-Ecuador
Crespo Cabrera, Hernan Giovanny
Ordonez Ordonez, Miriam Carlota
Sintomatología psicológica
Mujeres víctimas de violencia
violencia en relación de pareja
La violencia contra la mujer ocasionada por su pareja es una problemática psicosocial que ocasiona consecuencias psicológicas considerables. El objetivo del estudio fue describir la sintomatología psicológica en mujeres supuestas víctimas de violencia en relación de pareja, atendidas en el Instituto de Criminología, Criminalística e Intervención Psicosocial Familiar de la Universidad de Cuenca-Ecuador, en el periodo 2023. Él enfoque cuantitativo, diseño no experimental, transversal y alcance descriptivo. Se trabajó con una población de 30 mujeres. Se aplicó una ficha sociodemográfica, el inventario de síntomas SCL-90-R y la Escala de Gravedad de Síntomas del Trastorno de Estrés Postraumático según el DSM-5 versión forense. Los resultados en cuanto a la sintomatología psicológica fueron las obsesiones y compulsiones, seguida de la ideación paranoide y la depresión. Los más puntuados fueron pensamientos acerca de la muerte, comer en exceso y los sentimientos de culpa, así como la gravedad de los síntomas de estrés postraumático.
Intimate partner violence against women is a psychosocial problem with considerable psychological consequences. The objective of the study was to describe the psychological symptoms in women alleged victims of violence in a relationship, attended at the Institute of Criminology, Criminalistics and Family Psychosocial Intervention of the University of Cuenca-Ecuador, in the period 2023. The quantitative approach, non-experimental, crosssectional design and descriptive scope. We worked with a population of 30 women. A sociodemographic record, the SCL-90-R symptom inventory and the Post-Traumatic Stress Disorder Symptom Severity Scale according to the DSM-5 forensic version were applied. The results in terms of psychological symptomatology were obsessions and compulsions, followed by paranoid ideation and depression. The highest rated were thoughts about death, overeating and feelings of guilt, as well as the severity of posttraumatic stress symptoms.
2024-01-22
2024-01-22
2023
ARTÍCULO
0257-4314
http://dspace.ucuenca.edu.ec/handle/123456789/43736
https://revistas.uh.cu/rces/article/view/8316
es_ES
oai:dspace.ucuenca.edu.ec:123456789/431962023-10-13T21:28:28Zcom_123456789_21982com_123456789_15col_123456789_21983
Bridge topology optimization considering stochastic moving traffic
Carrion Monsalve, Juan Eugenio
Topology optimization
Lyapunov equation
Random traffic loading
Stochastic dynamics
Topology optimization of bridge structures is challenging due to the difficulty in accounting for the stochastic dynamic nature of the moving vehicle loads. As a result, optimization for this common type of structure and loading is limited in the existing literature. Existing topology optimization approaches for addressing stochastic dynamic loading can be classified as time domain, frequency domain, or random vibration methods. Herein, a new compact representation of random moving traffic loading as a filtered white noise is developed which enables stochastic topology optimization to be performed. This optimization utilizes an objective function which combines the mean and standard deviation of responses to minimize the extreme response to random traffic loading. Examples show a significant improvement of the bridge response, represented by a reduction in the standard deviation at a minimal cost to the mean response. Also, optimal topologies for different traffic parameters such as speed and arrival rate are relatively similar, indicating a robust solution. With this approach, bridge topology can be efficiently optimized for random moving traffic loading by enabling direct minimization of response extremes, which represents the probabilistic design intent to achieve adequate levels of performance under the loading uncertainties in typical bridges.
2023-10-13
2023-10-13
2023
ARTÍCULO
0141-0296
http://dspace.ucuenca.edu.ec/handle/123456789/43196
https://www.scopus.com/record/display.uri?eid=2-s2.0-85163871734&origin=resultslist&sort=plf-f&src=s&sid=1810c09ffff32dd622cc029382226146&sot=b&sdt=b&s=TITLE-ABS-KEY%28Bridge+topology+optimization+considering+stochastic+moving+traffic%29&sl=81&sessionSearchId=1810c09ffff32dd622cc029382226146
10.1016/j.engstruct.2023.116498
es_ES
oai:dspace.ucuenca.edu.ec:123456789/344392020-08-01T01:07:26Zcom_123456789_21982com_123456789_15col_123456789_21983
Information and communication technologies, contrasting teacher - student assessments in high schools within Cuenca, Ecuador
Mora Oleas, Janeth Catalina
Gonzales Prado, Neli Norma
Trelles Zambrano, Cesar Augusto
Treatment
Processing information
Teach
Mathematics
The purpose of this study is to diagnose the management and use of Information and Communication
Technologies (ICT) as well as mathematical software in the teaching and learning of mathematics. A survey was provided to 64 mathematics teachers from different high schools in the city of Cuenca, Ecuador and their 381 students. A relational research approach was employed to collect and compare the data of the two educational participants, the teacher and the learner. According to the results of the study, most teachers reported that they use ICT to motivate learning and improve the assimilation of concepts. The students however, do not confirm that those technologies are being used at the levels mentioned by their teachers. GeoGebra is a Dynamic Program for the Teaching and Learning of Mathematics. This software is better known and used for teaching in private education than in public education
The purpose of this study is to diagnose the management and use of Information and Communication
Technologies (ICT) as well as mathematical software in the teaching and learning of mathematics. A survey was provided to 64 mathematics teachers from different high schools in the city of Cuenca, Ecuador and their 381 students. A relational research approach was employed to collect and compare the data of the two educational participants, the teacher and the learner. According to the results of the study, most teachers reported that they use ICT to motivate learning and improve the assimilation of concepts. The students however, do not confirm that those technologies are being used at the levels mentioned by their teachers. GeoGebra is a Dynamic Program for the Teaching and Learning of Mathematics. This software is better known and used for teaching in private education than in public education.
2020-06-04
2020-06-04
2019
ARTÍCULO
2200-4270
http://dspace.ucuenca.edu.ec/handle/123456789/34439
https://openjournals.library.sydney.edu.au/index.php/CAL/article/view/13229/12131
es_ES
oai:dspace.ucuenca.edu.ec:123456789/291672020-08-01T01:15:27Zcom_123456789_21982com_123456789_15col_123456789_21983
Supply chain network optimization using a Tabu Search based heuristic [Otimização da rede de uma cadeia de suprimentos com a utilização de uma heurística baseada em Busca Tabu]
Borenstein, Denis
Heuristic
Supply Chain Management
Supply Chain Network Optimization
Tabu Search
This paper discusses the implementation and evaluation of a heuristic based on Tabu Search to optimize a supply chain network. To this end, a single-source model proposed by Farias & Borenstein (2012) was implemented. The problem was solved by adapting the Lee & Kwon method (2010), exchanging distribution centers (DCs) and arcs to find the lowest cost for a supply chain network. Twenty-two instances proposed by Farias & Borenstein (2012) were solved and the results indicate that, for the scenarios, the method applied presented good computational performance, obtaining results with 81.03% reduction of the average processing time. However, there was an increase of 4.98% in the average cost of the solutions obtained through the heuristic method when compared with the optimal results. Finally, the problem was solved for four other instances with real features, proving the efficiency of this heuristic for large-scale problems, considering that all solutions were obtained in less than 2 minutes of processing.
2018-01-11
2018-01-11
2016-01-01
Article
1478422X
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971377537&doi=10.1590%2f0104-530X1288-14&partnerID=40&md5=a654f2d36ffa45aa4a5c05676847bd2f
http://dspace.ucuenca.edu.ec/handle/123456789/29167
10.1590/0104-530X1288-14
en_US
TAYLOR AND FRANCIS LTD.
oai:dspace.ucuenca.edu.ec:123456789/314412020-08-01T01:13:57Zcom_123456789_21982com_123456789_15col_123456789_21983
Integrated methodological framework for assessing the risk of failure in water supply incorporating drought forecasts. Case study: andean regulated river basin
Aviles Añazco, Alex Manuel
Solera Solera, Abel
Paredes Arquiola,, Javier
Pedro Monzonís, María
Probabilistic drought forecasts
Risk assessment
Simulation of stochastic scenarios
Water resource systems management
Hydroclimatic drought conditions can affect the hydrological services offered by mountain river basins causing severe impacts on the population, becoming a challenge for water resource managers in Andean river basins. This study proposes an integrated methodological framework for assessing the risk of failure in water supply, incorporating probabilistic drought forecasts, which assists in making decisions regarding the satisfaction of consumptive, non-consumptive and environmental requirements under water scarcity conditions. Monte Carlo simulation was used to assess the risk of failure in multiple stochastic scenarios, which incorporate probabilistic forecasts of drought events based on a Markov chains (MC) model using a recently developed drought index (DI). This methodology was tested in the Machangara river basin located in the south of Ecuador. Results were grouped in integrated satisfaction indexes of the system (DSIG). They demonstrated that the incorporation of probabilistic drought forecasts could better target the projections of simulation scenarios, with a view of obtaining realistic situations instead of optimistic projections that would lead to riskier decisions. Moreover, they contribute to more effective results in order to propose multiple alternatives for prevention and/or mitigation under drought conditions.
Hydroclimatic drought conditions can affect the hydrological services offered by mountain river basins causing severe impacts on the population, becoming a challenge for water resource managers in Andean river basins. This study proposes an integrated methodological framework for assessing the risk of failure in water supply, incorporating probabilistic drought forecasts, which assists in making decisions regarding the satisfaction of consumptive, non-consumptive and environmental requirements under water scarcity conditions. Monte Carlo simulation was used to assess the risk of failure in multiple stochastic scenarios, which incorporate probabilistic forecasts of drought events based on a Markov chains (MC) model using a recently developed drought index (DI). This methodology was tested in the Machangara river basin located in the south of Ecuador. Results were grouped in integrated satisfaction indexes of the system (DSIG). They demonstrated that the incorporation of probabilistic drought forecasts could better target the projections of simulation scenarios, with a view of obtaining realistic situations instead of optimistic projections that would lead to riskier decisions. Moreover, they contribute to more effective results in order to propose multiple alternatives for prevention and/or mitigation under drought conditions.
2018-10-19
2018-10-19
2018
ARTÍCULO
1573-1650, e0920-4741
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85034664137&origin=inward
10.1007/s11269-017-1863-7
es_ES
oai:dspace.ucuenca.edu.ec:123456789/405752022-12-22T13:41:33Zcom_123456789_21982com_123456789_15col_123456789_21983
Conocimientos y actitudes sobre consumo preconcepcional de ácido fólico en estudiantes de Medicina de la Universidad de Cuenca, 2020
Garcia Salinas, Maria Belen
Delgado Andrade, Paola Gabriela
Ácido fólico
Embarazo
Estudiantes
Introducción: el consumo de ácido fólico preconcepcional contribuye a la prevención de defectos del tubo neural en el embarazo, siendo indispensable su uso durante la gestación.
Objetivo: establecer el nivel de conocimientos y actitudes sobre el consumo preconcepcional de ácido fólico, en estudiantes de primer año de Medicina de la Universidad de Cuenca, año 2020.
Metodología: estudio descriptivo transversal con una muestra de 141 estudiantes, obtenida con la fórmula para universos finitos, con intervalo de confianza del 95% e índice de error del 5%. Se aleatorizaron los alumnos en el programa EPIDAT 3.1. Respetando la confidencialidad de las listas entregadas, la codificación se realizó en la base de datos creada en el programa SPSS 22.0. El análisis se realizó mediante técnica descriptiva con tablas de frecuencias y porcentajes. El estudio fue aprobado por el Comité de Bioética en Investigación del Área de la Salud de la Universidad de Cuenca, la autorización de dirección de escuela de medicina y el consentimiento informado de los estudiantes.
Resultados: el 100% de los participantes conoce los beneficios del consumo de ácido fólico antes y durante la gestación, más del 90% recomendaría su uso; el 65% desconoce el momento de descontinuar su uso y el 51% no sabe la dosis; en cuanto a las actitudes, obtienen una puntuación regular el 78%.
Conclusiones: el nivel de conocimientos sobre los beneficios del ácido fólico antes y durante la gestación es alto, mientras que más de la mitad de participantes desconoce las dosis y momento de descontinuar su uso; un importante porcentaje mostró una actitud regular respecto al tema
Background: the consumption of preconception folic acid contributes to the prevention of neural tube defects in pregnancy, its use is essential during and before pregnancy.Objective: to establish the level of knowledge and attitudes about the preconception consumption of folic acid, in first-year medical students at the University of Cuenca, 2020.Methodology: it is a cross-sectional descriptive study with a sample of 141 students, obtained with the formula for finite universes, with a 95% confidence interval and a 5% error rate. Students were randomized in the EPIDAT 3.1 program. The confidentiality of the lists provided were respected, and the information was coded in the database created in the SPSS 22.0 program. The analysis was carried out using a descriptive technique with tables of frequencies and percentages. The approval of the COBIAS of the University of Cuenca, the authorization of the direction of the medical school and the informed consent of the students were requested.Results: the 100% of the participants know the benefits of folic acid consumption before and during pregnancy, more than 90% would recommend its use; 65% do not know when to stop its use and 51% do not know the dose. In terms of attitudes, they obtain a regular score of 78%.Conclusions: the level of knowledge about the benefits of folic acid before and during pregnancy is high, more than half of the participants do not know the doses and when to stop its use; an important percentage showed a regular attitude regarding the subject
2022-12-22
2022-12-22
2022
ARTÍCULO
1390-4450, e 2661-6777
http://dspace.ucuenca.edu.ec/handle/123456789/40575
https://publicaciones.ucuenca.edu.ec/ojs/index.php/medicina/article/view/3881/3008
10.18537/RFCM.39.02.06
es_ES
oai:dspace.ucuenca.edu.ec:123456789/348542021-05-04T10:01:24Zcom_123456789_21982com_123456789_15col_123456789_21983
El turista cultural en ciudades patrimonio de la humanidad de Latinoamérica. El caso de Cuenca (Ecuador)
Pérez Gálvez, Jesús Claudio
Torres Leon, Leonardo
Muñoz Fernández, Guzmán Antonio
López Guzmán, Tomás
Ciudad patrimonio de la humanidad
Cultura
Turismo
Motivación
Ecuador
El turismo cultural, entendido como la visita a lugares donde la cultura y el patrimonio histórico-artístico son destacables, se está convirtiendo en un motor económico impor-tante para esos destinos, especialmente si han recibido el reconocimiento de patrimonio Mundial por la unesco. Este artículo presenta un estudio indagatorio que analiza el perfil del turista cultural, las características de su viaje y cuáles son las principales motivacio-nes que hacen visitar una ciudad patrimonio de la humanidad en suramérica, como es la ciudad de Cuenca (Ecuador). La metodología utilizada en esta investigación ha consistido en la realización de un trabajo de campo basado en encuestas a los turistas en el momento en que se encontraban visitando la ciudad, entre octubre de 2014 y febrero de 2015; se apli-caron un análisis estadístico descriptivo, un análisis factorial y por conglomerados sobre la muestra. Los resultados confirman una interesante tipología de turista con un nivel educativo alto, con una renta media-alta y con diversidad de países de procedencia. Así mis-mo, se evidencia que existen tres dimensiones motivacionales que inducen a visitar Cuenca: una dimensión propiamente cultural, otra cir-cunstancial y una más de conveniencia. se han determinado cuatro tipologías de visitantes, siendo el turista con motivaciones culturales el que mejor satisfacción tiene al visitar la ciudad. La principal aplicación práctica de esta investigación es contribuir a comprender las características de los turistas que visitan una ciudad patrimonial y cuáles son sus motiva-ciones, a efectos de segmentar el mercado y concebir productos turísticos y culturales que satisfagan mejor sus necesidades
Heritage tourism, understood as the visit to places where culture and the historical-artistic heritage is remarkable, is becoming an im-portant economic engine for those destina-tions. Especially, if they are recognized as a World Heritage Site by unesco. This paper presents an inquiring study that analyzes the profile of the cultural tourist, the characteris-tics of his trip and what are the main reasons for visiting a World Heritage City in South America, such as the city of Cuenca (Ecua-dor). The methodology used in this research consisted of a field work, based on surveys of tourists in the time they were visiting the city, between October 2014 and Febru-ary 2015, applying a descriptive statistical analysis, a factorial analysis and by clusters of the sample. The results confirm an interest-ing typology of tourists with an educational level and a medium-high income and with a diversity of countries of origin. Likewise, it is evident that there are three motivational dimensions that induce to visit Cuenca: a cultural dimension, a circumstantial dimen-sion and a dimension of convenience. It has been determined four types of visitors, being the tourist with cultural motivations the best satisfaction when visiting the city. The main practical application of this research is to contribute to understand the characteristics of tourists visiting a heritage city and what are their motivations, in order to segment the market and design tourism and cultural products that better meet their needs
2020-10-06
2020-10-06
2018
ARTÍCULO
0120-7555
https://revistas.uexternado.edu.co/index.php/tursoc/article/view/5347
doi.org/10.18601/01207555
es_ES
oai:dspace.ucuenca.edu.ec:123456789/405782022-12-22T14:39:13Zcom_123456789_21982com_123456789_15col_123456789_21983
Absceso cerebral. Reporte de caso
Soliz Rivero, Gardenia
Sanchez Troya, Loida Betzabe
Cullacay Buñay, Silvia Alejandra
Morales Lluman, Washington Abel
Otitis media
Período posparto
Absceso encefálico
Puerperio
Introducción: el absceso cerebral, caracterizado por colecciones supurativas focales del parénquima cerebral, constituye un problema de salud mundial por su alta morbimortalidad y carga económica para el sistema de salud. Caso Clínico: mujer de 35 años, el último trimestre de embarazo cursó con otitis media supurativa derecha sin tratamiento. Durante el puerperio mediato, presenta cefalea intensa, se automedica analgésicos orales sin mejoría. Acude a hospital, donde realizan Tomografía Axial Computarizada (TAC), reportando dos lesiones hipodensas, encapsuladas en el lóbulo temporal, rodeadas de edema vasogénico con realce en anillo post contraste; en la Resonancia Nuclear Magnética (RNM), las dos colecciones restringen en secuencia de difusión con caída de la señal del Coeficiente de Difusión Aparente (ADC). Se inicia antibiótico amplio espectro y drenaje quirúrgico inmediato con colocación de dren externo. Evolución favorable. Conclusión: el absceso cerebral es potencialmente mortal, su pronóstico depende del diagnóstico oportuno. La infección ótica severa contribuyó al desarrollo de esta patología, siendo una causa rara en adultos
Introduction: brain abscess, characterized by focal suppurative collections of the brain parenchyma, constitutes a global health problem due to its high morbidity and mortality and economic burden for the health system.Clinical case: It is a case of a35-year-old woman, who the last trimester of pregnancy had right suppurative otitis media without treatment. During the mediate puerperium, the patient had an intense headache and self-medicated oral analgesics without improvement. The woman goes to the hospital, where a Computerized Axial Tomography (CT) was made, it reports two hypodense lesions, encapsulated in the temporal lobe, surrounded by vasogenic edema with post-contrast ring enhancement; In Nuclear Magnetic Resonance (NMR), the two collections restrict the diffusion sequence with a drop in the Apparent Diffusion Coefficient (ADC) signal. A broad spectrum antibiotic and immediate surgical drainage with placement of an external drain are started. It has a favorable evolution.Conclusion: brain abscess is life threatening, its prognosis depends on timely diagnosis. The severe ear infection contributed to the development of this pathology, being a rare cause in adults
2022-12-22
2022-12-22
2021
ARTÍCULO
1390-4450, e 2661-6777
http://dspace.ucuenca.edu.ec/handle/123456789/40578
https://publicaciones.ucuenca.edu.ec/ojs/index.php/medicina/article/view/3335/3011
0.18537/RFCM.39.02.09
es_ES
oai:dspace.ucuenca.edu.ec:123456789/429792023-10-02T20:01:53Zcom_123456789_21982com_123456789_15col_123456789_21983
Shrub encroachment in Mediterranean mountain grasslands: Rate and consequences on plant diversity and forage availability
Aguirre de Juana, Angel Javier
Juniperus alpina
Woody expansion
Land-use change
Juniperus sabina
Cytisus oromediterraneus
Grassland loss
grassland diversity
Erinacea anthyllis
Question: Shrub encroachment has been confirmed in the past decades all over the world and is currently viewed as a “global process” threatening many grass-dominated biomes. In southern Europe has generally been related to rural depopulation, land-use changes and grazing abandonment. Nevertheless, in several mountain ranges of the Iberian Peninsula with secular pastoralism and high shrub cover, neither stocking rate nor traditional management has substantially altered in the past decades. Within this framework, to deepen our knowledge of shrub encroachment and to adopt, if necessary, appropriate control measures, we aim to discover: (i) the overall expansion rate in the main grassland–shrub communities; (ii) the course of shrub expansion; and (iii) the consequences for grassland floristic composition, plant diversity and frequency of the main forage functional groups throughout the period of woody expansion. Location: This study was undertaken in Moncayo Natural Park (Spain), a climate and vegetation crossroads with remarkable presence of four widespread Mediterranean shrubs: Cytisus oromediterraneus, Erinacea anthyllis, Juniperus communis and J. sabina. Methods: To determine the expansion rates of those shrubs, we examined four distinct and sufficiently separated grazing areas (and different shrub combinations), each with four different stages of shrub cover, over a 6-year period. To assess changes in vegetation structure between 2008 and 2014 during the different stages of shrub encroachment, we used a paired t-test comparing 14 parameters related to the diversity, life-form spectra and abundance of grazing plants. The influence of year, cover category and zone was jointly assessed using a Linear Mixed Model. Results: For the whole territory, we found an increase in average yearly cover of 1.3% (with high variation between the four species), although at the zone scale (areas with a particular shrub dominance) this increase was significant in only half of them. When the four shrubs occur together, Juniperus species show faster expansion rates than the other two species, although in only a few cases was the increase significant over the 6 years of the study. We found a significant decrease in total plant diversity and a significant increase in dominance between cover categories and years. Looking at the vegetation life-forms, the increase in chamaephytes and phanerophytes, which include invader shrubs, caused a decrease in therophytes and hemicryptophytes. Finally, grasses and leguminous plants, which constitute the main livestock food intake, showed noticeable reductions, resulting in loss of pastoral value. Conclusions: Although cessation of grazing has been noted as the main cause of shrub encroachment in Mediterranean grasslands, our results, suggest that encroachment occurs despite the maintenance of stocking rate and livestock management, and leads to a decrease in plant diversity and grassland quality. Focusing on use of the territory and taking into account the prevalence of negative effects after shrub encroachment, additional measures to safeguard ecological and pastoral values in Mediterranean mountain grasslands should be considered, particularly on sites of nature conservation interest with a long grazing history
2023-10-02
2023-10-02
2023
ARTÍCULO
1100-9233
http://dspace.ucuenca.edu.ec/handle/123456789/42979
https://www.scopus.com/record/display.uri?eid=2-s2.0-85149881393&origin=resultslist&sort=plf-f&src=s&sid=d504826c4d9b6a7803be2c9898967467&sot=b&sdt=b&s=TITLE-ABS-KEY%28Shrub+encroachment+in+Mediterranean+mountain+grasslands%3A+Rate+and+consequences+on+plant+diversity+and+forage+availability%29&sl=136&sessionSearchId=d504826c4d9b6a7803be2c9898967467
10.1111/jvs.13174
es_ES
oai:dspace.ucuenca.edu.ec:123456789/221482020-08-01T01:16:30Zcom_123456789_21982com_123456789_15col_123456789_21983
Using time-driven activity-based costing to support library management decisions: A case study for lending and returning processes
Siguenza Guzman, Lorena Catalina
With the rapid increase in the demand for new digital services, the high cost of information, and the dramatic economic slowdown, libraries have been pressured to improve their services at lower costs. To cope with these conditions, library managers must improve their knowledge and understanding of cost behavior, as well as be aware of the different costs involved in the library. Time-Driven Activity-Based Costing (TDABC) is a cost management technique that allows for developing accurate cost information on a wide range of activities. Few case studies have been implemented in libraries regarding very specific processes such as interlibrary loan and acquisition processes. More research is still needed to determine whether TDABC is useful and feasible to implement for a more extensive set of library activities. Through an analysis performed at an academic library in Belgium, this document introduces TDABC as a useful method for supporting lending and returning processes. © 2014 by The University of Chicago. All rights reserved.
2018-01-11
2018-01-11
2014-01-01
Article
242519
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84890034576&doi=10.1086%2f674032&partnerID=40&md5=12ae8708aaf2070607e774114f3a6724
http://dspace.ucuenca.edu.ec/handle/123456789/22148
10.1086/674032
en_US
oai:dspace.ucuenca.edu.ec:123456789/352832021-01-26T10:01:45Zcom_123456789_21982com_123456789_15col_123456789_21983
Dificultades que enfrentan los nuevos estudiantes universitarios en matemática
Bravo Guerrero, Fabian Eugenio
Ingreso a la universidad
Formación docente en matemáticas
Bases de matemáticas
Proceso de admisión
Primer semestre en la universidad
Esta investigación analiza los problemas que enfrentan los estudiantes durante la transición entre
el colegio y el primer semestre de estudios universitarios, en la matemática. Para esto, al final del
primer semestre se encuestó a estudiantes recién ingresados, se averiguó sobre su formación
previa en matemática, el proceso de ingreso a la universidad y las asignaturas tomadas del área
de matemática, además, se revisó los registros académicos una vez finalizado el primer semestre.
Se encontró que muchos estudiantes provienen de familias donde los responsables del hogar
tienen formación primaria o ninguna; también, que no tienen buenas bases en matemática, y que
los estudios en la carrera son difíciles. Se aporta con información para reflexionar sobre el
proceso de selección, curso preuniversitario y el diseño curricular de la carrera. Es muy
importante conocer a los estudiantes que recién ingresan y su vivencia durante el primer
semestre, no solo a través cifras estadísticas, sino comprender las dificultades que ellos
atraviesan.
This research analyzes the problems that students face during the transition between school and
the first semester of university studies, in mathematics. For this, at the end of the first semester,
new students were surveyed, it was inquired about their previous formation in mathematics, the
process of entrance to the university and the subjects taken in the area of mathematics, in
addition the academic records were reviewed once finalized the first semester. It was found that
many students come from families where those responsible for the family have no or no primary
education; also, that they don´t have good bases in mathematics, and that studies in the career are
difficult. It is provided with information to reflect on the selection process, pre-university course
and the curricular design of the career. It is very important to know the students who have just
entered and their experience during the first semester, not only through statistical figures, but to
understand the difficulties they go through.
2021-01-06
2021-01-06
2020
ARTÍCULO
2477-9024
https://revistas.uide.edu.ec/index.php/innova/article/view/994
10.33890/innova.v5.n1.2020.994
es_ES
oai:dspace.ucuenca.edu.ec:123456789/343972022-04-05T10:00:31Zcom_123456789_21982com_123456789_15col_123456789_21983
Latin American Women´s beliefs, views and ideas about sexual assertiveness: a focus group study in Cuenca (Ecuador)
Lopez Alvarado, Silvia Lucia
Van Parys, Hanna
Cevallos Neira, Ana Cristina
Enzlin, Paul
Comportamiento sexual
Anticoncepción
Rol sexual
Educación sexual
En un intento por ampliar nuestra comprensión de cómo los contextos sociales cocrean la sexualidad femenina en América Latina, el objetivo del presente estudio fue explorar las creencias, puntos de vista e ideas sobre la asertividad sexual en las mujeres adultas latinas emergentes. Diecisiete mujeres entre 22 y 30 años que vivían en Cuenca, Ecuador, participaron en grupos focales. Se utilizó un enfoque de teoría constructivista fundamentada para analizar los datos. Los resultados sugieren que los puntos de vista generales sobre la asertividad sexual en las mujeres adultas emergentes se pueden agrupar en cinco categorías: (1) esquemas de roles de género; (2) preocupaciones sobre los pensamientos y reacciones de la pareja; (3) actitudes de género hacia el uso de métodos anticonceptivos específicos; (4) hablar sobre historias sexuales como una tarea desafiante; y (5) replicación de patrones familiares. Los hallazgos de este estudio se discuten dentro de la literatura existente que destaca la influencia de los esquemas de roles de género en la asertividad sexual. Finalmente, se formula una súplica para una investigación más sensible culturalmente, así como algunas actividades educativas (la necesidad de reforzar los programas de educación sexual) y clínicas, destacando la capacidad de ser sexualmente asertivo desde el comienzo de una relación. Se mencionan las implicaciones.
In an attempt to extend our understanding of how social contexts co-create female sexuality in Latin America, the aim of the current study was to explore the beliefs, views, and ideas about sexual assertiveness in Latino emerging adult women. Seventeen women between 22 and 30 years old living in Cuenca, Ecuador, participated in focus groups. A constructivist grounded theory approach was used to analyze the data. Findings suggest that the overall views about sexual assertiveness in emerging adult women can be grouped into five categories: (1) gender role schemata; (2) concerns about the partner’s thoughts and reactions; (3) gendered attitudes towards the use of specific methods of contraception; (4) talking about sexual histories as a challenging task; and (5) replication of family patterns. The findings of this study are discussed within existing literature that highlights the influence of gender role schemata on sexual assertiveness. Finally, a plea for more culturally sensitive research is formulated as well as some educational–the need to reinforce sex education programs–and clinical–highlighting the ability to be sexually assertive from the start of a relationship–implications are mentioned. © 2019, © 2019 The Society for the Scientific Study of Sexuality.
2020-05-28
2020-05-28
2020
ARTÍCULO
0022-4499, e 1559-8519
https://www.scopus.com/record/display.uri?eid=2-s2.0-85066609429&origin=resultslist&sort=plf-f&src=s&st1=Latin+American+Women%c2%b4s+Beliefs%2cViews+and+Ideas+About+Sexual+Assertiveness%3a+A+Focus+Group+Study+in+Cuenca&sid=84b0917a5d9abc3dc6aafe5fd81538b6&sot=b&sdt=b&sl=120&s=TITLE-ABS-KEY%28Latin+American+Women%c2%b4s+Beliefs%2c+Views+and+Ideas+About+Sexual+Assertiveness%3a+A+Focus+Group+Study+in+Cuenca%29&relpos=0&citeCnt=5&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
10.1080/00224499.2019.1615031
es_ES
oai:dspace.ucuenca.edu.ec:123456789/440312024-03-04T19:09:31Zcom_123456789_21982com_123456789_15col_123456789_21983
Principios sobre gnomónica en la Varia Commensuracion de Juan de Arfe
Crespo Fajardo, Jose Luis
Sundials
Gnomonics
Arfe
16th century
Treatise
This article delves into the prescriptions that the Renaissance goldsmith Juan de Arfe y Villafañe refers to on gnomonics in his treatise De Varia Commensuracion para la Sculptura y Architectura (Seville, 1585-1587). The indications and data referred to are examined in detail, as well as the details concerning the instruments for measuring time and the tables of latitudes that Arfe proposes. It also highlights the survival of this section in posterity, as it was enlarged, amended and published separately by various printers who considered this brief section of the Varia to be a unique contribution.
Este artículo ahonda en las prescripciones que el orfebre renacentis-ta Juan de Arfe y Villafañe refiere sobre gnomónica en su tratado De Varia Com-mensuracion para la Sculptura y Architectura (Sevilla, 1585-1587). Se examinan al detalle las indicaciones y datos referidos, así como los pormenores tocantes a los instrumentos de medición horaria y tablas de latitudes que Arfe propone. Asimis-mo, se pone en valor la pervivencia que este apartado tuvo en la posteridad, pues fue aumentado, enmendado y publicado de forma aislada por varios impresores que estimaron en esta breve sección de la Varia un aporte singular.
2024-03-04
2024-03-04
2023
ARTÍCULO
2328-1308
http://dspace.ucuenca.edu.ec/handle/123456789/44031
https://www.revistahipogrifo.com/index.php/hipogrifo/article/view/1224/1818
10.13035/H.2023.11.02.36
es_ES
oai:dspace.ucuenca.edu.ec:123456789/358322021-03-23T10:01:43Zcom_123456789_21982com_123456789_15col_123456789_21983
Physical and mechanical properties of particleboard made from palm tree prunings
Ferrández García, Clara Eugenia
Ferrández García, Antonio
Ferrández Villena, Manuel
Hidalgo Cordero, Juan Fernando
García Ortuño, Teresa
Ferrández García, María Teresa
Thermal conductivity
Palm rachis
Biomass
Hot pressing
Phoenix canariensis
Phoenix dactylifera
Washingtonia robusta
Palm trees are very fast-growing species. Their management produces annually a large amount of biomass that traditionally has been either disposed of at dumping sites or has been burnt onsite. This paper presents an experimental study to obtain particleboard using this biomass in a low energy process (short pressing time and low pressing temperature), using particles of different sizes from the rachis (midrib) of the three palm species most representative of urban gardening in Spain: canary palm (Phoenix canariensis hort. ex Chabaud), date palm (Phoenix dactylifera L.) and washingtonia palm (Washingtonia robusta H. Wendl). Their physical and mechanical properties were tested, and the feasibility of their use as a construction material was evaluated. The results showed that the manufactured particleboard had similar performance to conventional wood particleboard and good thermal insulation properties. Boards made with the canary species showed better mechanical performance. The properties of the particleboard depended on the particle size and species. The use of the pruning waste of palm trees to produce durable materials such as particleboard could be beneficial to the environment since it is a method of carbon fixation, helping to decrease atmospheric pollution and reducing the amount of waste that ends in dumping sites.
2021-03-12
2021-03-12
2018
ARTÍCULO
1999-4907
https://doi.org/10.3390/f9120755
10.3390/f9120755
es_ES
oai:dspace.ucuenca.edu.ec:123456789/414482023-03-14T15:14:06Zcom_123456789_21982com_123456789_15col_123456789_21983
Paisaje cultural en Azogues
Vazquez Solorzano, Wilson Marcelo
Siguencia Avila, Maria Eugenia
Paisajismo
Cultura
Patrimonio cultural
Áreas rurales
La independencia de las ciudades americanas fue influenciada por movimientos como la Ilustración y la lucha por la libertad. En 1820, Azogues se independizó y se convirtió en la capital de la Provincia del Azuay. En 1883, la provincia se denominó Provincia del Cañar en honor al pueblo cañari. La ciudad de Azogues ha logrado preservar su patrimonio a través de la coexistencia de manifestaciones tangibles e intangibles, incluyendo su arqueología, traza urbana colonial, edificaciones, geografía sagrada, formas de vida y costumbres. La Convención de Patrimonio Mundial de la UNESCO tiene como objetivo identificar, proteger, conservar, revalorizar y transmitir a las generaciones futuras el patrimonio cultural y natural de valor universal excepcional. Ecuador ratificó esta convención en 1975 y se compromete a establecer mecanismos de protección del patrimonio dentro de su legislación nacional
2023-03-14
2023-03-14
2020
CAPÍTULO DE LIBRO
978-9942-8897-0-3
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/41448
https://es.scribd.com/document/513818722/Azogues-Bicentenario-de-Su-Independencia#
es_ES
GAD Municipal de Azogues
oai:dspace.ucuenca.edu.ec:123456789/407512023-01-17T17:02:49Zcom_123456789_21982com_123456789_15col_123456789_21983
Towards deep learning in the university through collaborative instructional design based on learning outcomes and threshold concepts
Bravo Torres, Wilson Daniel
Pérez Fernández, María Dolores
Morales Ordoñez, Isaac Andres
Bravo Torres, Jack Fernando
Learning outcomes
Collaborative teaching
Conceptual structure of knowledge
Teacher cloisters
Threshold concepts
This article presents a proposal for the development of a collaborative curriculum and instructional design at the university. It starts from the premise that teaching-learning processes at any level of training must be designed, managed and implemented in a collaborative way, supported by teacher structures grouped around their domains of knowledge. Moreover, we consider as central axes of all curricular and instructional design a correct selection and structuring of the contents to be studied, based on the identification of the conceptual structures of the topics under study (threshold concepts and their interlinkages) together with an appropriate definition of the desired learning outcomes and evaluation tools.
2023-01-17
2023-01-17
2022
ARTÍCULO DE CONFERENCIA
978-989758562-3
2184-5026
http://dspace.ucuenca.edu.ec/handle/123456789/40751
https://www.scopus.com/record/display.uri?eid=2-s2.0-85140878942&doi=10.5220%2f0011092200003182&origin=inward&txGid=5738db546c466319ed4ce0d87fa3d876
10.5220/0011092200003182
es_ES
Universidad Politécnica de Madrid
oai:dspace.ucuenca.edu.ec:123456789/370542021-10-26T10:02:18Zcom_123456789_21982com_123456789_15col_123456789_21983
Which factors contribute to sexual well-being? A comparative study among 17 to 20 year old boys and girls in Belgium and Ecuador
Jerves Hermida, Elena Monserrath
Michielsen, Kristien
Vega Crespo, Bernardo José
De Meyer, Sara
Lecompte, Margaux
Van den Bossche, Rani
Arpi Becerra, Nancy Consepcion
Cevallos Neira, Ana Cristina
Adolescents
Positive approach
Young people
Belgium
Ecuador
Sexual well-being
A pesar del reconocimiento de que el bienestar sexual es una parte importante de la salud sexual y reproductiva de los adolescentes, aún no existe una descripción clara del bienestar sexual de los adolescentes. A través de seis entrevistas en profundidad y cuatro discusiones de grupos focales con 56 jóvenes en dos contextos distintos (Bélgica y Ecuador), utilizamos el marco socioecológico para identificar los factores que influyen en el bienestar sexual de los adolescentes. Según los encuestados, los principales factores que influyen en el bienestar sexual de los adolescentes no solo se sitúan a nivel individual (tener conocimientos y habilidades y ser física, sexual y mentalmente maduro y saludable) e interpersonales (atracción positiva hacia los demás y comunicación sobre la sexualidad) , pero a un nivel social más amplio, incluida la aceptación social del sexo, el género y la diversidad sexual y su traducción (legal) en educación sexual integral y la disponibilidad inmediata de anticonceptivos. Nuestros resultados van mucho más allá de dos definiciones existentes de bienestar sexual (adolescente) para contribuir a la comprensión y medición desde la perspectiva de los propios jóvenes, lo que se suma de manera sustancial a la discusión en curso sobre la definición del concepto.
Despite recognition that sexual well-being is an important part of adolescent sexual and reproductive health, a clear description of adolescent sexual well-being does not yet exist. Through six in-depth interviews and four focus group discussions with 56 young people in two distinct contexts (Belgium and Ecuador), we used the social-ecological framework to identify factors influencing adolescent sexual well-being. According to respondents, the main factors that influence adolescent sexual well-being are not only situated at the individual (having knowledge and skills and being physically, sexually and mental mature and healthy) and interpersonal levels (positive attraction towards others and communication about sexuality), but at a broader societal level, including social acceptance of sex, gender and sexual diversity and its (legal) translation into comprehensive sexuality education and the ready availability of contraceptives. Our results go well beyond two existing definitions of (adolescent) sexual well-being to contribute to understanding and measurement from the perspective of young people themselves, adding substantively to ongoing discussion about the definition of the concept.
2021-10-19
2021-10-19
2021
ARTÍCULO
1369-1058
http://dspace.ucuenca.edu.ec/handle/123456789/37054
https://pubmed.ncbi.nlm.nih.gov/34126851/
10.1080/13691058.2021.1928288
es_ES
oai:dspace.ucuenca.edu.ec:123456789/371322021-10-26T10:02:55Zcom_123456789_21982com_123456789_15col_123456789_21983
El docente investigador. Algunas consideraciones para su formación profesional
Sánchez Orbea, Griselda
Peñaherrera Wilches, Jimena
Molerio Rosa, Arleti Maria
universidad
profesor investigador
Formación docente
Uno de los procesos sustantivos de la universidad es la investigación, actividad primordial para el perfeccionamiento
de la docencia. Mediante ella se desarrolla un proceso de conocimiento que toma como base
la realidad social para así establecer la interrelación del proceso enseñanza/aprendizaje y la sociedad y para
poder disponer de docentes investigadores capacitados. Esta reflexión teórica se centra en el docente investigador
como actor principal y tiene como objetivo fundamentar la necesidad de estimular su formación
en las universidades desde el perfil profesional. La sistematización cualitativa de los diversos estudios en
torno a la formación del docente investigador en universidades latinoamericanas ha permitido encontrar
regularidades y tendencias sobre los saberes indispensables en la formación del docente investigador,
que serán atendidos en su formación. Entre estos rasgos están: análisis del proyecto de vida del docente
investigador, diagnóstico que posibilita el aprendizaje de los estudiantes desde sus referentes personales;
proponer una práctica pedagógica con base ética y responsable; saberes que estimulen el pensamiento
crítico y creativo; la formación de valores y actitudes en contextos sociales específicos; estimular las motivaciones
y procesos afectivos de respeto, mediante el proceso de enseñanza/aprendizaje y la ejecución de
acciones cuestionadoras y creativas aplicadas a la práctica.
One of the substantive processes of the university is research, a primary activity for the improvement of
teaching, through it a process of knowledge is developed that is based on social reality and thus establish
the interrelation within the teaching / learning process and society, having trained research teachers. This
theoretical reflection focuses on the research teacher as the main actor, and aims to substantiate the need
to stimulate their training in universities, from the professional profile. Through the qualitative systematization
of the various studies on the training of the research teacher in Latin American universities, it
has allowed to analyze, find regularities and trends about the essential knowledge in the training of the
research teacher, and which will be addressed in their training. Among these features are: analysis of the
research teacher’s life project, a diagnosis that enables students to learn from their personal references;
development of an ethical and responsible pedagogical practice; knowledge that stimulates critical and
creative thinking; the formation of values and attitudes in specific social contexts; stimulate the motivations
and affective processes of respect, through the teaching / learning process and the development of
questioning, creative actions applied to practice
2021-10-25
2021-10-25
2021
CAPÍTULO DE LIBRO
978-9942-783-67-7
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/37132
https://unae.edu.ec/wp-content/uploads/2021/10/Libro_practicas_innovacion_educacion_inicial.pdf
es_ES
Universidad Nacional de Educación del Ecuador
oai:dspace.ucuenca.edu.ec:123456789/444342024-03-25T13:39:36Zcom_123456789_21982com_123456789_15col_123456789_21983
Rasgos de personalidad en presuntos agresores atendidos en la Universidad de Cuenca-Ecuador-2022
Valdivieso Sanchez, Gabriela Maria
Pena Aguirre, Juan Antonio
Millon
Violence
Agresores masculinos
Rasgos de personalidad
Male aggressors
Criminal law
Los rasgos de personalidad son características persistentes de formas de percibir, interactuar, socializar y razonar sobre el entorno y uno mismo. El objetivo general de la investigación consistió en describir los rasgos de personalidad en presuntos agresores masculinos con orden judicial para intervención psicológica en el (ICCIPFUC), en el año 2022. El estudio tuvo un enfoque cuantitativo, con diseño no experimental, transversal y un alcance descriptivo. Se trabajó con una población de 70 presuntos agresores masculinos. Los instrumentos utilizados fueron la ficha sociodemográfica y el Inventario Clínico MCMI-III, cuya validación empleada fue la adaptada al idioma castellano por Cardenal y Sánchez en 2007. Los resultados permitieron obtener una base de datos sociodemográficos que revela edades comprendidas en la etapa de la adultez media, predominando el estado civil soltero y casado y, nivel de instrucción el bachiller, además, se obtuvo la descripción de los rasgos de personalidad predominantes en presuntos agresores.
Personality traits are persistent characteristics of ways of perceiving, interacting, socializing, and reasoning about the environment and oneself. The general objective of the research was to describe the personality traits in alleged male aggressors with a judicial order for psychological intervention in the (ICCIPFUC), in the year 2022. The study had a quantitative approach, with a non-experimental, cross-sectional design and a scope descriptive. We worked with a population of 70 presumed male aggressors. The instruments used were the sociodemographic file and the MCMI-III Clinical Inventory, whose validation was adapted to the Spanish language by Cardenal and Sánchez in 2007. The results allowed obtaining a sociodemographic database that reveals ages comprised in the adulthood stage. average, predominating the marital status single and married and, level of education the bachelor, in addition, the description of the predominant personality traits in alleged aggressors was obtained.
2024-03-25
2024-03-25
2023
ARTÍCULO
2518-2730
http://dspace.ucuenca.edu.ec/handle/123456789/44434
https://revistas.uh.cu/rces/article/view/8310
es_ES
oai:dspace.ucuenca.edu.ec:123456789/381802022-03-08T10:02:43Zcom_123456789_21982com_123456789_15col_123456789_21983
Fusing multisource data to estimate the effects of urbanization, sea level rise, and hurricane impacts on long-term wetland change dynamics
Muñoz Pauta, Paul Andres
Mortazavi, Behzad
Moftakhari, Hamed
Muñoz Pauta, David Fernando
Alipour, Atieh
Data fusion
Deep learning
Hurricane impacts
Mobile bay
Sea level rise
Urban development
Wetland loss
Wetlands are endangered ecosystems that provide vital habitats for flora and fauna worldwide. They serve as water and carbon storage units regulating the global climate and water cycle, and act as natural barriers against storm-surge among other benefits. Long-term analyses are crucial to identify wetland cover change and support wetland protection/restoration programs. However, such analyses deal with insufficient validation data that limit land cover classification and pattern recognition tasks. Here, we analyze wetland dynamics associated with urbanization, sea level rise, and hurricane impacts in the Mobile Bay watershed, AL since 1984. For this, we develop a land cover classification model with convolutional neural networks (CNNs) and data fusion (DF) framework. The classification model achieves the highest overall accuracy (0.93), and f1-scores in woody (0.90) and emergent wetland class (0.99) when those datasets are fused in the framework. Long-term trends indicate that the wetland area is decreasing at a rate of –1106 m 2 /yr with sharp fluctuations exacerbated by hurricane impacts. We further discuss the effects of DF alternatives on classification accuracy, and show that the CNN & DF framework outperforms machine/deep learning models trained only with single input datasets.
2022-03-02
2022-03-02
2021
ARTÍCULO
1939-1404
http://dspace.ucuenca.edu.ec/handle/123456789/38180
https://www.scopus.com/record/display.uri?eid=2-s2.0-85099095977&origin=resultslist&sort=plf-f&src=s&st1=Fusing+Multisource+Data+to+Estimate+the+Effects+of+Urbanization%2c+Sea+Level+Rise%2c+and+Hurricane+Impacts+on+Long-Term+Wetland+Change+Dynamics&sid=4f2fdf7744167ddf6492560b4a562f6f&sot=b&sdt=b&sl=154&s=TITLE-ABS-KEY%28Fusing+Multisource+Data+to+Estimate+the+Effects+of+Urbanization%2c+Sea+Level+Rise%2c+and+Hurricane+Impacts+on+Long-Term+Wetland+Change+Dynamics%29&relpos=0&citeCnt=4&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
10.1109/JSTARS.2020.3048724
es_ES
oai:dspace.ucuenca.edu.ec:123456789/418852023-05-16T14:10:32Zcom_123456789_21982com_123456789_15col_123456789_21983
Indoor Environmental Quality Assessment Model (IEQ) for Houses
Quesada Molina, Felipe
Astudillo Cordero, Sebastian
Calidad ambiental interior
Construir sistemas de evaluación de la sostenibilidad
Escalas ponderadas de evaluación del IEQ
La vivienda y su ambiente interior influyen en el confort, la productividad y la salud de sus habitantes. Por este motivo, cada vez es más importante investigar los factores que afectan a la calidad ambiental interior. Por lo tanto, se han desarrollado numerosos sistemas de evaluación de la sostenibilidad para evaluar el rendimiento de los edificios. Este artículo presenta un modelo para evaluar el ambiente interior de viviendas ubicadas en la región del Biobío de Chile, integrando aspectos que influyen en su calidad general. La metodología de investigación propone una estrategia para identificar criterios de evaluación adecuados y estándares contextualizados. La aplicación del modelo permitió identificar el nivel de desempeño de las viviendas tipo estudio para cada categoría, a saber, calidad del aire, confort térmico, acústica e iluminación, así como la evaluación general del IEQ.
Housing and its indoor environment influence its inhabitants’ comfort, productivity, and health. For this reason, it is becoming increasingly important to investigate the factors that affect indoor environmental quality. Thus, numerous sustainability assessment systems have been developed to evaluate building performance. This paper presents a model for evaluating the indoor environment of housing located in the Biobio region of Chile, integrating aspects that influence its overall quality. The research methodology proposes a strategy to identify appropriate evaluation criteria and contextualized standards. The application of the model made it possible to identify the level of performance of studio dwellings for each category, namely air quality, thermal comfort, acoustics, and lighting, as well as the overall evaluation of the IEQ. The results reflect that the lowest levels of performance in the three houses were with respect to the acoustic evaluation criteria, while the highest levels of performance were for the air quality evaluation criteria.
2023-05-12
2023-05-12
2022
ARTÍCULO
2071-1050
https://www.mdpi.com/2071-1050/15/2/1276
10.3390/su15021276
es_ES
oai:dspace.ucuenca.edu.ec:123456789/330982020-12-22T10:04:10Zcom_123456789_21982com_123456789_15col_123456789_21983
Academy, cultural heritage and innovation in the province of Azuay, Ecuador
Amaya Ruiz, Jorge Alberto
Garcia Velez, Gabriela Elizabeth
Jara Avila, David Francisco
Adobe
Cultural Heritage
Vernacular architecture
En las últimas décadas, el estudio del vínculo entre el sector institucional y la comunidad civil ha adquirido una gran importancia. En este contexto, la universidad ha desempeñado un papel importante en la identificación de necesidades y posibles soluciones a través de sus capacidades creativas e innovadoras. Basada en el estudio del sector productivo de adobe en dos áreas rurales de la provincia de “Azuay” (“Sinincay y Susudel”) Ecuador, la presente investigación analiza las contribuciones territoriales que la Facultad de Arquitectura y Urbanismo de la Universidad de Cuenca ha realizado. Generando en este sector artesanal. La situación actual del sector se describe y contrasta con un modelo de articulación entre los actores involucrados para coordinar los esfuerzos en la creación de valor sectorial y territorial. Además, este modelo podría contribuir a crear estrategias competitivas en la producción de “adobe” y a fortalecer uno de los sectores que apoyan la preservación del patrimonio cultural en la Región Andina.
In recent decades, studying the link between the institutional sector and civil community has taken on a major importance. In this context, the university has been playing an important role on identifying needs and possible solutions through its creative and innovative capacities. Based on the study of the adobe productive sector in two rural areas of the province of “Azuay” (“Sinincay and Susudel”) Ecuador, the present research analyses the territorial contributions that the Faculty of Architecture and Urbanism of the University of Cuenca has been generating in this artisanal sector. The current situation of the sector is described and contrasted by a model of articulation between the actors involved in order to coordinate efforts in the creation of sectorial and territorial value. Besides, this model might contribute to create competitive strategies on the production of “adobe” and to strength one of the sectors which support the cultural heritage preservation in the Andean Region.
2019-07-26
2019-07-26
2019
CAPÍTULO DE LIBRO
22110844
22110844
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85052304016&origin=inward
10.1007/978-3-319-99441-3_221
es_ES
Springer Netherlands
oai:dspace.ucuenca.edu.ec:123456789/349682021-02-09T10:05:03Zcom_123456789_21982com_123456789_15col_123456789_21983
Mapping hazard zones, rapid warning communication and understanding communities: primary ways to mitigate pyroclastic flow hazard
Lavigne, Franck
Morin, Julie
Wulan Mei, Estuning Tyas
Calder, Eliza
Usamah Null, Muhibuddin Null
Nugroho, Ute
Crisis management
Evacuation
Pyroclastic density currents
Risk communication
Risk perception
Warning
Protection against the consequences of Pyroclastic Density Currents (PDCs) is almost impossible due to their high velocity, temperature, sediment load and mobility. PDCs therefore present a challenge for volcanic crisis management in that specific precautionary actions, essentially evacuations, are required to reduce loss of life. In terms of crisis communication for PDC hazards, there are three challenging questions that arise in terms of reducing risk to life, infrastructure and livelihoods. (1) How do we accurately communicate the hazardous zones related to potential PDC inundation? The areas exposed to PDC hazard are difficult to assess and to map. In terms of risk/crisis management, the areas considered at risk are usually those that were affected by PDCs during previous eruptive episodes (decades or centuries ago). In case of “larger-than-normal” eruptions, the underestimation of the hazard zone may lead to refusals to evacuate in the “newly” threatened area. Another difficulty in assessing the PDC hazard zones relate to their transport processes that allow surmounting of the topography and in some cases across the surface of water. Therefore warning systems must be able to cover vast areas in a minimum of time. (2) How do we efficiently warn people in time? PDCs are extremely mobile and fast. It is therefore necessary to raise the alert early enough before the onset of the first PDCs. A challenging question in terms of crisis communication is related to the type of tools used by the local authorities, modern and traditional tools both of which have advantages and disadvantages. (3) Why are people reluctant to evacuate? Local inhabitants can be reluctant to evacuate during a crisis if traditional warning signs or signals they are familiar with are lacking, if they don’t receive both traditional and official warning, and because they may lose their livelihoods. Thus a deeper understanding of the at‐risk communities and efficient dissemination of information are key issues in order to reduce vulnerability in PDC hazard regions. © 2017, The Author(s).
Protection against the consequences of Pyroclastic Density Currents (PDCs) is almost impossible due to their high velocity, temperature, sediment load and mobility. PDCs therefore present a challenge for volcanic crisis management in that specific precautionary actions, essentially evacuations, are required to reduce loss of life. In terms of crisis communication for PDC hazards, there are three challenging questions that arise in terms of reducing risk to life, infrastructure and livelihoods. (1) How do we accurately communicate the hazardous zones related to potential PDC inundation? The areas exposed to PDC hazard are difficult to assess and to map. In terms of risk/crisis management, the areas considered at risk are usually those that were affected by PDCs during previous eruptive episodes (decades or centuries ago). In case of “larger-than-normal” eruptions, the underestimation of the hazard zone may lead to refusals to evacuate in the “newly” threatened area. Another difficulty in assessing the PDC hazard zones relate to their transport processes that allow surmounting of the topography and in some cases across the surface of water. Therefore warning systems must be able to cover vast areas in a minimum of time. (2) How do we efficiently warn people in time? PDCs are extremely mobile and fast. It is therefore necessary to raise the alert early enough before the onset of the first PDCs. A challenging question in terms of crisis communication is related to the type of tools used by the local authorities, modern and traditional tools both of which have advantages and disadvantages. (3) Why are people reluctant to evacuate? Local inhabitants can be reluctant to evacuate during a crisis if traditional warning signs or signals they are familiar with are lacking, if they don’t receive both traditional and official warning, and because they may lose their livelihoods. Thus a deeper understanding of the at‐risk communities and efficient dissemination of information are key issues in order to reduce vulnerability in PDC hazard regions. © 2017, The Author(s).
2020-10-27
2020-10-27
2018
CAPÍTULO DE LIBRO
978-3-319-44095-8
2364-3277
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064944742&doi=10.1007%2f11157_2016_34&partnerID=40&md5=356ae56e4f3048d33708c2564279c1cf
10.1007/11157_2016_34
es_ES
Springer
oai:dspace.ucuenca.edu.ec:123456789/429762023-10-02T19:22:44Zcom_123456789_21982com_123456789_15col_123456789_21983
Beef Nutritional Characteristics, Fat Profile and Blood Metabolic Markers from Purebred Wagyu, Crossbred Wagyu and Crossbred European Steers Raised on a Fattening Farm in Spain
Pesantez Pacheco, Jose Luis
Oleins
PUFA
Amino acids
Angus
Black-Japanese
Health-related indexes
MUFA
A high intramuscular fat content characterizes Wagyu (WY) cattle breed. Our objective was to compare beef from WY, WY-by-Angus, or Wangus (WN) steers with European, Angus-by-Charolais-Limousine crossbred steers (ACL), considering metabolic biomarkers pre-slaughtering and nutritional characteristics, including health-related indexes of the lipid fraction. The fattening system with olein-rich diets and no exercise restriction included 82 steers, 24 WY, 29 WN, and 29 ACL. The slaughter ages and weights were (median and interquartile range) 38.4 mo.-old (34.9–40.3 mo.) and 840 kg (785–895 kg) for WY; for WN, 30.6 mo. (26.9–36.5 mo.) and 832 kg (802–875 kg), and for ACL steers, 20.3 mo.-old (19.0–22.7 mo.) and 780 kg (715–852 kg). Blood lipid-related metabolites, except for non-esterified fatty acids (NEFA) and low-density level cholesterol (LDL), were higher in WY and WN than in ACL, while glucose was lower in WY and WN. Leptin was higher in WN than in ACL. Pre-slaughtering values of plasma HDL underscored as a possible metabolic biomarker directly related to beef quality. The amino-acid content in beef did not differ among experimental groups, except for more crude protein in ACL. Compared to ACL, WY steers showed higher intramuscular fat in sirloin (51.5 vs. 21.9%) and entrecote (59.6 vs. 27.6%), more unsaturated fatty acids in entrecote (55.8 vs. 53.0%), and more oleic acid in sirloin (46 vs. 41.3%) and entrecote (47.5 vs. 43.3%). Compared to ACL entrecote, WY and WN showed better atherogenic (0.6 and 0.55 vs. 0.69), thrombogenicity (0.82 and 0.92 vs. 1.1), and hypocholesterolemic/hypercholesterolemic index (1.9 and 2.1 vs. 1.7). Therefore, beef’s nutritional characteristics depend on breed/crossbred, slaughtering age and cut, with WY and WN entrecote samples showing a healthier lipid fraction
2023-10-02
2023-10-02
2023
ARTÍCULO
2076-2615
http://dspace.ucuenca.edu.ec/handle/123456789/42976
https://www.scopus.com/record/display.uri?eid=2-s2.0-85149784399&origin=resultslist&sort=plf-f&src=s&sid=37ae432feb68b570095e5bf4ad41631d&sot=b&sdt=b&s=TITLE-ABS-KEY%28Beef+Nutritional+Characteristics%2C+Fat+Profile+and+Blood+Metabolic+Markers+from+Purebred+Wagyu%29&sl=108&sessionSearchId=37ae432feb68b570095e5bf4ad41631d
10.3390/ani13050864
es_ES
oai:dspace.ucuenca.edu.ec:123456789/379972022-02-15T10:01:59Zcom_123456789_21982com_123456789_15col_123456789_21983
Bothrops atrox from ecuadorian amazon: initial analyses of venoms from individuals
Da Silva, Saulo Luis
Palma Patiño, Ricardo Sebastian
Mendes, Bruno
Proaño Bolaños, Carolina Del carmen
Salazar Valenzuela, David
Medina Villamizar, Evencio Joel
Toxicological
Antivenom
Enzymatic
Lethality
Phenotype
Bothrops atrox is the most clinically relevant snake species within the Amazon region, which includes Ecuadorian
territories. It comprises a large distribution, which could contribute to the genetic and venomic variation
identified in the species. The high variability and protein isoform diversity of its venom are of medical interest,
since it can influence the clinical manifestations caused by envenomation and its treatment. However, in Ecuador
there is insufficient information on the diversity of venomic phenotypes, even of relevant species such as B. atrox.
Here, we characterized the biochemical and toxicological profiles of the venom of six B. atrox individuals from
the Ecuadorian Amazon. Differences in catalytic activities of toxins, elution profiles in liquid chromatography,
electrophoretic patterns, and toxic effects among the analyzed samples were identified. Nonetheless, in the
preclinical testing of antivenom, two samples from Mera (Pastaza) required a higher dose to achieve total
neutralization of lethality and hemorrhage. Taken together, these data highlight the importance of analyzing
individual venoms in studies focused on the outcomes of envenoming
2022-02-08
2022-02-08
2021
ARTÍCULO
0041-0101
http://dspace.ucuenca.edu.ec/handle/123456789/37997
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100606336&doi=10.1016%2fj.toxicon.2021.01.007&partnerID=40&md5=cda86d018a99551af3e59692214fb1fb
10.1016/j.toxicon.2021.01.007
es_ES
oai:dspace.ucuenca.edu.ec:123456789/333042020-08-01T01:10:44Zcom_123456789_21982com_123456789_15col_123456789_21983
Audio fingerprint parameterization for multimedia advertising identification
Medina Cartuche, Jose Luis
Vega Zamora, Oswaldo Francisco
Mendoza Siguenza, Daniel Emilio
Saquicela Galarza, Victor Hugo
Espinoza Mejia, Jorge Mauricio
Saquicela Galarza, Victor Hugo
Advertising Monitoring
Audio Fingerprint
Automatic Content Recognition
Signal Processing
This article follows step by step a general framework for fingerprint extraction in order to develop a system for advertisements' monitoring. The parameterization process uses some spatial and spectral characteristics measured over 600 advertisements that contain various types of sounds. Key factors such as accuracy, process time, and granularity are analyzed together in order to enhance the system performance. At the end, the algorithm shows an accuracy of 99% using three seconds of granularity samples, and also the best compromise between processing time and performance is achieved. This study suggests a set of parameterization steps which could be successfully implemented in other related audio applications. © 2017 IEEE.
This article follows step by step a general framework for fingerprint extraction in order to develop a system for advertisements' monitoring. The parameterization process uses some spatial and spectral characteristics measured over 600 advertisements that contain various types of sounds. Key factors such as accuracy, process time, and granularity are analyzed together in order to enhance the system performance. At the end, the algorithm shows an accuracy of 99% using three seconds of granularity samples, and also the best compromise between processing time and performance is achieved. This study suggests a set of parameterization steps which could be successfully implemented in other related audio applications. © 2017 IEEE.
2019-08-07
2019-08-07
2017
ARTÍCULO DE CONFERENCIA
978-153863894-1
0000-0000
http://dspace.ucuenca.edu.ec/handle/123456789/33304
https://ieeexplore.ieee.org/document/8247498
10.1109/ETCM.2017.8247498
es_ES
Institute of Electrical and Electronics Engineers Inc.
oai:dspace.ucuenca.edu.ec:123456789/411092023-02-24T22:10:10Zcom_123456789_21982com_123456789_15col_123456789_21983
Preventing overweight and obesity among preschool children: lessons learned in Cuenca, Ecuador
Abril Ulloa, Sandra Victoria
Morales Avilez, Diana Elizabeth
Romo, Matthew L
Exercise
Ecuador
Latin America
Pediatric obesity
Health
Diet
Introduction: Childhood overweight and obesity are major public health problems globally, including in Ecuador, and there is increasing interest in intervening as early as possible. We previously developed and evaluated a behavioural and educational intervention aiming to improve diet and physical activity habits among children at municipal preschools in Cuenca, Ecuador, after which it was implemented. Objective: To describe some of the key lessons learned in the process of intervention development, evaluation, and implementation. Methods: We conducted program evaluation using a survey questionnaire with open-ended questions with the coordinators, teachers, and kitchen staff of the preschools that participated in the intervention. Results: Human resource changes were a threat to the continued success of the intervention; therefore, these changes need to be anticipated and peer training emphasized. Careful consideration also needs to be given to impact on preschool staff workload. Teachers and other stakeholders like administrators should take ownership of the intervention and play a leadership role, distinct from that of researchers. Regarding the intervention itself, we identified that both fidelity and adaptability were critical for continued success. Conclusion: Lessons learned from our setting may be useful to inform the design, evaluation, and implementation of sustainable preschool-based interventions aiming to improve diet and physical activity habits elsewhere.
2023-02-24
2023-02-24
2022
ARTÍCULO
1390-874X
http://dspace.ucuenca.edu.ec/handle/123456789/41109
http://revistas.espoch.edu.ec/index.php/cssn/article/view/673/669
10.47244/cssn.Vol13.Iss1.673
es_ES
oai:dspace.ucuenca.edu.ec:123456789/429102023-10-12T21:21:45Zcom_123456789_21982com_123456789_15col_123456789_21983
Determinantes sociales de la salud en mujeres que viven violencia del austro ecuatoriano
Burgueño Alcalde, Francisca
Cabrera Cárdenas, Carmen Lucía
PeNafiel PeNafiel, Marcia Beatriz
Rodríguez Sánchez, Dolores Amparito
Violencia de género
Salud
Determinantes sociales
Gender violence
Health
Social determinants
Introducción: Las determinantes sociales influyen en las distintas condiciones de vida, en el caso de la violencia de
género nos permiten analizar, reflexionar y mirar de manera holística el problema que es considerado una epidemia
mundial, de salud pública y de derechos humanos que está presente en todas las sociedades con serias consecuencias
en la salud mental de las víctimas. Objetivo: Describir los determinantes sociales de la salud en un colectivo de mujeres que viven violencia de género y acuden a un centro especializado de atención. Materiales y métodos: Se realizó una investigación cuantitativa de corte transversal con una muestra de 610 participantes que firmaron el consentimiento informado. Resultados: Las mujeres refieren vivir en un entorno físico ecológico (61,6%) y entorno físico social (61,3%) inadecuados, mientras que el 56,7% refiere un entorno físico familiar adecuado. En cuanto a la satisfacción con acciones de salud preventivas de violencia relacionada con la percepción de violencia en el hogar, se muestra que es estadísticamente significativo (p=0.0001). Conclusiones: Se destaca
la importancia de incluir los determinantes sociales para el análisis de la violencia de género y así abordar el problema de manera integral. La violencia de género se encuentra presente en todos los espacios familiares, comunitarios y sociales, percibida como un hecho normal, por lo cual se debe visibilizar el problema con la magnitud que requiere
Introduction: The social determinants influence the different living conditions, in the case of gender violence they allow us to analyze, reflect and look holistically at the problem that is considered a global epidemic, public health, and human rights that are present in all societies with serious consequences for the mental health of the victims.
Objective: To describe the social determinants of health in a
group of women who experience gender-based violence and attend a specialized care center. Materials and methods: A cross-sectional quantitative research was carried out with a sample of 610 participants who signed the informed consent.
Results: The women report living in an inadequate physical environment (61.6%) and physical social environment
(61.3%), while 56.7% report an adequate family physical environment. Regarding the satisfaction with preventive health actions of violence related to the perception of violence in the home, it is shown that it is statistically significant (p=0.0001).
Conclusions: The importance of including social determinants for the analysis of gender violence and thus comprehensively addressing the problem is highlighted. Gender violence is present in all family, community, and social spaces, perceived as a normal fact, for which the problem must be made visible with the magnitude it requires.
2023-09-27
2023-09-27
2022
ARTÍCULO
2610-7988
https://www.revistaavft.com/images/revistas/2022/avft_6_2022/3_determinantes_sociales_salud.pdf
10.5281/zenodo.7221950.
es_ES
oai:dspace.ucuenca.edu.ec:123456789/357552021-03-23T10:01:30Zcom_123456789_21982com_123456789_15col_123456789_21983
Imágenes de ciudad según los visitantes a museos, Cuenca-Ecuador
Torres Leon, Leonardo
Coronel Padilla, Mónica
Avecillas Torres, Angeles Imelda
Barzallo Neira, Cristina Andrea
Imagen
Percepción
Testimonios de visitantes
Museos
Cuenca-Ecuador
El artículo caracteriza la imagen de la ciudad de Cuenca-Ecuador a partir de los testimonios
de los visitantes de seis de sus museos. El estudio es pionero ya que no hay trabajos
previos sobre imagen aplicados a la ciudad. De otra parte, el estudio se realiza con una
6 Lurralde : inves. espac. 44 (2021), p. 5-26 ISSN 0211-5891 ISSN 1697-3070 (e)
LEONARDO TORRES LEÓN • MÓNICA CORONEL PADILLA • IMELDA AVECILLAS TORRES • CRISTINA BARZALLO NEIRA
fuente de información cualitativa: los testimonios escritos en los libros de visita. En cuanto a
las aplicaciones, el trabajo es de utilidad para los gestores del turismo a fin de incidir sobre
la realidad del sector. Las conclusiones indican que Cuenca-Ecuador es percibida por sus
visitantes como una ciudad que se distingue por su legado histórico-cultural.
The article characterizes the image of the city of Cuenca-Ecuador from the testimonies of
visitors to six of its museums. The study is pioneering as there are no previous image works
applied to the city. On the other hand, the study is carried out with a source of qualitative
information: the testimonies written in the Visiting Books. In terms of application, the work
is useful for tourism managers in order to influence the reality of the sector. The findings
indicate that Cuenca-Ecuador is perceived by its visitors as a city that is distinguished by its
historical-cultural legacy.
2021-03-08
2021-03-08
2021
ARTÍCULO
02115891
http://www.ingeba.org/lurralde/
es_ES
oai:dspace.ucuenca.edu.ec:123456789/409792023-02-02T17:57:41Zcom_123456789_21982com_123456789_15col_123456789_21983
Concepciones de docentes y gestores sobre las políticas, culturas y prácticas inclusivas en la Universidad de Cuenca
Bautista Cerro, María José
Clavijo Castillo, Ruth Germania
Inclusión educativa
Educación superior
Cultura inclusiva
La inclusión en la universidad ecuatoriana es un derecho que está contemplado en la normativa
que regula la Educación Superior. Desde este estudio, se entiende que debe ser uno de los pilares
básicos para generar una universidad democrática, justa y solidaria. Este artículo está orientado a
analizar las opiniones que presentan los docentes coordinadores de las Facultades y gestores del
Departamento de Bienestar Universitario (DBU) en torno al proceso de atención a la diversidad
del estudiantado, considerando las políticas, prácticas y culturas inclusivas de la Universidad de
Cuenca. La metodología utilizada es cualitativa, se aplicó la entrevista semiestructurada
permitiendo obtener información sobre la organización de las facultades en torno a las dimensiones
del Index for inclusión. Para los participantes, de este estudio, los principales responsables garantizar el derecho a la educación de todas las personas son las autoridades, los administrativos, los gestores del DBU y el profesorado. De las principales barreras que obstaculizan la educación inclusiva a nivel universitario desde el punto de vista de los profesionales consultados, constituyen la poca información sobre los procesos y las prácticas inclusivas, el desconocimiento de políticas inclusivas y sobre todo la falta de formación del profesorado en atención a la diversidad, situaciones que restringen la generación de una cultura superior inclusiva
Inclusion in the Ecuadorian university is a right that is covered in the standards that regulate Higher Education. Draw from this study it is understood that it should be one of the basic pillars to create a democratic, fair and supportive university with everyone. This article is aimed at analyzing the main opinions presented by the coordinating teachers of the faculties and managers of the University Students Wellness Department, in relation to the process of attention to the student body diversity, considering the policies, practices and inclusive cultures of the Cuenca University. The methodology used is qualitative; it was applied a semi-structured interview, this to allow obtaining information of the faculty organization around the dimensions of the Index for inclusion. For the participants in this study, the authorities, administrators, student wellness' managers and teachers are the main responsible for guaranteeing the right of education for all. Between the main barriers that hinder inclusive education at the university level from the point of view of professionals consulted, it constitutes little information on inclusive processes and practices, ignorance of inclusive policies and, especially, the lack of teacher training in care diversity; situations that block generations of an inclusive superior culture
2023-02-02
2023-02-02
2022
ARTÍCULO
2477-9024
http://dspace.ucuenca.edu.ec/handle/123456789/40979
https://dialnet.unirioja.es/servlet/articulo?codigo=8548137
10.33890/innova.v7.n2.2022.2002
es_ES
oai:dspace.ucuenca.edu.ec:123456789/377442022-01-18T10:02:04Zcom_123456789_21982com_123456789_15col_123456789_21983
El tiempo semejante
Astudillo Sarmiento, Juan Carlos
Poesía
Ecuador
Fotografía
Todo en El tiempo semejante, el poemario de Juan Carlos Astudillo Sarmiento, es un retornar hacia la hondura del paisaje,
del ser que forma un todo con la naturaleza, de la meditación
inagotable, del pensamiento que parece un mar −de nubes, de
silencios, de corrientes cristalinas−, en incesante vaivén trascendental, perenne.
2022-01-11
2022-01-11
2021
LIBRO
978-980-7123-48-8
0000-0000
https://lacastalia.com.ve/wp-content/uploads/2021/02/Libro-Juan-Carlos-Astudillo-DEFINITIVO-22-feb-BR.pdf
es_ES
La Castalia y Ediciones de la Línea Imaginaria
oai:dspace.ucuenca.edu.ec:123456789/220212020-08-01T01:11:28Zcom_123456789_21982com_123456789_15col_123456789_21983
Forest impact on floods due to extreme rainfall and snowmelt in four Latin American environments 2: Model analysis
Bathurst, James C.
Iroumé, Andrés
Cisneros, Felipe
Fallas, Jorge
Iturraspe, Rodolfo
Gaviño Novillo, Marcelo
Urciuolo, Adriana
Birkinshaw, Steve J.
Coello, Cristian
Alvarado, Andrés
Miranda, Miriam
Ramírez, Marco
Sarandón, Ramiro
Huber, Anton
Field Data
Forest
Floods
Forest Cover Change
Latinoamerica
River Catchments
Through a systematic modelling analysis for focus catchments in Costa Rica (131 km2), Ecuador (10 km2), Chile (0.35 km2) and Argentina (12.9 km2), the hypothesis is tested that, as the size of the hydrological event increases, the effect of forest cover on the peak discharge becomes less important. For each focus catchment, a 1000-year synthetic rainfall time series was generated, representative of the current climate. This time series was used to run SHETRAN hydrological models for each catchment with two contrasting land use scenarios (generally with and without a forest cover). The corresponding maximum daily discharges for the contrasting scenarios were then compared to show the extent to which the two responses converged as the size of the peak discharge increased. For a given forest catchment discharge there could be a range of larger non-forest catchment discharges, depending on antecedent soil moisture content. The simulations show consistently for the rainfall dominated sites that the width of this range either remains constant or narrows as discharge increases, indicating either relative or absolute convergence of the responses. The pattern is more difficult to distinguish for a snowmelt regime but a relative convergence of response still appears possible. The results therefore support the test hypothesis. However, the pattern is complicated by factors such as catchment scale, soil depth, antecedent moisture content and land management. Forests may also still offer significant flood mitigation benefits for moderate (and more frequent) rainfall events and they protect against soil erosion and sediment transport for a wide range of events.
2015-06-10
2015-06-10
2011-04-11
Article
http://dspace.ucuenca.edu.ec/handle/123456789/22021
doi: 10.1016 / j.jhydrol.2010.09.001
eng
http://creativecommons.org/licenses/by-nc-sa/3.0/ec/
openAccess
oai:dspace.ucuenca.edu.ec:123456789/384162022-03-08T10:05:47Zcom_123456789_21982com_123456789_15col_123456789_21983
Uso de tecnologías de la información y comunicación en el bachillerato
Bravo Guerrero, Fabian Eugenio
Quezada Matute, Tatiana Gabriela
Videojuegos
Videogames
ICT
Technological resources
Social networks
Secondary education
Educación secundaria
Recursos tecnológicos
TIC
Redes sociales
El vertiginoso desarrollo de las tecnologías de la información y comunicación –TIC–ha revolucionado a la sociedad y a la educaciónen particular, pero en el aula no se aprovecha todo ese potencial, porque hay dificultades debidas al docente, la infraestructura y el estudiante. Este trabajo es un estudio de caso que tiene como objetivoinvestigar cómo se usan las TIC en la educaciónsecundaria. La investigación tiene un enfoque cuantitativo, de tipo descriptivo y correlacional, se aplicó una encuesta a estudiantes que acaban de ingresar a la universidad y están recién graduados,para averiguarcómo se usaron las TIC en el colegio. Se encontró que las instituciones educativas tienen deficiencias en su infraestructura tecnológica, además, que los docentesy los estudiantesutilizan losrecursostecnológicos de forma limitada, desaprovechando el potencial que estos tienen;los estudiantesemplean buena parte de sutiempo en redes sociales y videojuegos,a pesar de reconocer que noles beneficia. Es importante esta información porque a partir de estos datos se pueden tomar decisiones que optimicenel uso de las TIC en la educaciónsecundaria ecuatoriana
The vertiginous development of information and communication technologies -ICT -has revolutionized society and education in particular, but not all that potential is exploited in the classroom because there are difficultiesdue to the teacher, the infrastructure, and the student. This work is a case study that aims to investigate how ICT is used in secondary education. The research has a quantitative, descriptive, and correlational approach; a survey was applied to recently graduated students to find out how ICT was used at school. It was found that educational institutions have deficiencies in their technological infrastructure, in addition, teachers and students use technological resources in a limited way, wasting their potential; Students spend a good part of their time on social networks and video games, despite acknowledging that it does not benefit them. This information is important because, based on these data; decisions can be made that optimize the use of ICT in Ecuadorian secondary education.PalabrasClave/KeywordsEducación secundaria; redes sociales; recursos tecnológicos; TIC; videojuegos/Secondary education; social networks; technological resources; ICT; videogames*Dirección para correspondencia:fabian.bravo@ucuenca.edu.ecArtículo recibido el 10-05-2020Artículo aceptado el 30-03-2021Artículo publicado el 30 -04-2021Conflicto de intereses no declarado.Fundada 2016 Unidad de Cooperación Universitaria de la Universidad Técnica de Manabí, Ecuador.1Universidad de Cuenca, Mg., Facultad de Filosofía, Letras y Ciencias de la Educación, Cuenca, Ecuador, fabian.bravo@ucuenca.edu.ec, https://orcid.org/0000-0002-0372-20712Universidad de Cuenca, Mg., Facultad de Filosofía, Letras y Ciencias de la Educación, Cuenca, Ecuador, tatiana.quezada@ucuenca.edu.ec,https://orcid.org/0000-0003-2730-9342
2022-03-07
2022-03-07
2021
ARTÍCULO
2528-8075
http://dspace.ucuenca.edu.ec/handle/123456789/38416
https://revistas.utm.edu.ec/index.php/Recus/article/view/2404/3357
https://doi.org/10.33936/recus.v6i1
es_ES
oai:dspace.ucuenca.edu.ec:123456789/377232022-01-11T10:02:35Zcom_123456789_21982com_123456789_15col_123456789_21983
Espacio social y democracia
Jimenez Pacheco, Pedro Sebastian
Revista Estoa
Editorial
A través de este número, nos gustaría explicar un espacio social polivalente producido en el hecho de la democracia universitaria, y que florece en Estoa por el conocimiento generado desde múltiples ámbitos de la investigación urbano- arquitectónica.
2022-01-10
2022-01-10
2021
ARTÍCULO
1390-9274
http://dspace.ucuenca.edu.ec/handle/123456789/37723
http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&pid=S1390-92742021000100007&lng=es&nrm=iso&tlng=es
10.18537/est.v010.n019.e01
es_ES
oai:dspace.ucuenca.edu.ec:123456789/343092020-12-22T10:03:57Zcom_123456789_21982com_123456789_15col_123456789_21983
Cultural significance: linking actors and methods
Garcia Velez, Gabriela Elizabeth
Amaya Ruiz, Jorge Alberto
Tenze Alicia, Margarita
Architectural heritage
Community involvement
Cultural values
Interdisciplinary research
Participatory assessment
Central to the entire discipline of architectural heritage conservation is the concept of cultural significance. It refers to the collection of values associated with a cultural property which act as a guide for decision making process. However, recent evidence suggests that cultural values belong to a dynamic and complex system which changes permanently. As result of that, new values might be added to previous ones, while in other cases, irreparable losses might be triggered. Thus, preservation of architectural properties is clearly conditioned by the capacity to reveal the major range of values through the implication of a variety of actors. The case study of two traditional neighborhoods of Cuenca, Ecuador seeks to examine similarities and complementarities on cultural values identification by two different actors: academic and civil members. A holistic approach is utilised, integrating the most recent recommendations from the cultural field referred to the cultural mapping and recommendations from the Socio-praxis discipline. This study makes a major contribution to research on values-based management by proposing a methodology to link an interdisciplinary approach with an active community participation. The paper has been divided into four parts. The first part describes the conceptual framework, the second presents a brief description of the territorial context of analysis, while the third part presents the methodological process and tools utilized to identify cultural values. Finally, the conclusion gives a brief summary and critique of the findings concerning to the values identified as well as to the utilized methods.
Central to the entire discipline of architectural heritage conservation is the concept of cultural significance. It refers to the collection of values associated with a cultural property which act as a guide for decision making process. However, recent evidence suggests that cultural values belong to a dynamic and complex system which changes permanently. As result of that, new values might be added to previous ones, while in other cases, irreparable losses might be triggered. Thus, preservation of architectural properties is clearly conditioned by the capacity to reveal the major range of values through the implication of a variety of actors. The case study of two traditional neighborhoods of Cuenca, Ecuador seeks to examine similarities and complementarities on cultural values identification by two different actors: academic and civil members. A holistic approach is utilised, integrating the most recent recommendations from the cultural field referred to the cultural mapping and recommendations from the Socio-praxis discipline. This study makes a major contribution to research on values-based management by proposing a methodology to link an interdisciplinary approach with an active community participation. The paper has been divided into four parts. The first part describes the conceptual framework, the second presents a brief description of the territorial context of analysis, while the third part presents the methodological process and tools utilized to identify cultural values. Finally, the conclusion gives a brief summary and critique of the findings concerning to the values identified as well as to the utilized methods.
2020-05-15
2020-05-15
2019
CAPÍTULO DE LIBRO
22110844
22110844
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85052284251&origin=inward
10.1007/978-3-319-99441-3_220
es_ES
Springer Netherlands
oai:dspace.ucuenca.edu.ec:123456789/318292020-08-01T01:17:00Zcom_123456789_21982com_123456789_15col_123456789_21983
Exploring the influence of meteorological conditions on the performance of a waste stabilization pond at high altitude with structural equation modeling
Ho, Long
Van Echelpoel, Wout
Alvarado Martinez, Andres Omar
Algal Photosynthesis
High Altitude
Spatiotemporal Variation
Structure Equation Modeling
Waste Stabilization Ponds
Algal photosynthesis plays a key role in the removal mechanisms of waste stabilization ponds
(WSPs), which is indicated in the variations of three parameters, dissolved oxygen, pH, and
chlorophyll a. These variations can be considerably affected by extreme climatic conditions at high
altitude. To investigate these effects, three sampling campaigns were conducted in a high-altitude
WSP in Cuenca (Ecuador). From the collected data, the first application of structure equation
modeling (SEM) on a pond system was fitted to analyze the influence of high-altitude characteristics
on pond performance, especially on the three indicators. Noticeably, air temperature appeared as
the highest influencing factors as low temperature at high altitude can greatly decrease the growth
rate of microorganisms. Strong wind and large diurnal variations of temperature, 7–20 C, enhanced
flow efficiency by improving mixing inside the ponds. Intense solar radiation brought both
advantages and disadvantages as it boosted oxygen level during the day but promoted algal
overgrowth causing oxygen depletion during the night. From these findings, the authors proposed
insightful recommendations for future design, monitoring, and operation of high-altitude WSPs.
Moreover, we also recommended SEM to pond engineers as an effective tool for better simulation of
such complex system like WSPs.
Algal photosynthesis plays a key role in the removal mechanisms of waste stabilization ponds
(WSPs), which is indicated in the variations of three parameters, dissolved oxygen, pH, and
chlorophyll a. These variations can be considerably affected by extreme climatic conditions at high
altitude. To investigate these effects, three sampling campaigns were conducted in a high-altitude
WSP in Cuenca (Ecuador). From the collected data, the first application of structure equation
modeling (SEM) on a pond system was fitted to analyze the influence of high-altitude characteristics
on pond performance, especially on the three indicators. Noticeably, air temperature appeared as
the highest influencing factors as low temperature at high altitude can greatly decrease the growth
rate of microorganisms. Strong wind and large diurnal variations of temperature, 7–20 C, enhanced
flow efficiency by improving mixing inside the ponds. Intense solar radiation brought both
advantages and disadvantages as it boosted oxygen level during the day but promoted algal
overgrowth causing oxygen depletion during the night. From these findings, the authors proposed
insightful recommendations for future design, monitoring, and operation of high-altitude WSPs.
Moreover, we also recommended SEM to pond engineers as an effective tool for better simulation of
such complex system like WSPs.
2019-01-22
2019-01-22
2018
ARTÍCULO
0273-1223 (Print) 1996-9732 (Electronic) 0273-1223 (Linking)
http://dspace.ucuenca.edu.ec/handle/123456789/31829
https://iwaponline.com/wst/article-abstract/78/1/37/39361/Exploring-the-influence-of-meteorological?redirectedFrom=fulltext
10.2166/wst.2018.254
es_ES
oai:dspace.ucuenca.edu.ec:123456789/353922021-01-19T10:03:19Zcom_123456789_21982com_123456789_15col_123456789_21983
Towards an evaluation method of how accessible serious games are to older adults
Pesantez Cabrera, Paola Gabriela
Acosta, María Inés
Sinchi Coronel, Pablo Fernando
Jimbo, Verónica
Cedillo Orellana, Irene Priscila
Serious Games
Accessibility
Evaluation
Older Adults
The loss of cognitive and motor functions in humans increases with age, and the aging population is expected to continue growing significantly in the following years. In this context, serious games have become a tool that supports health professionals in mitigating age-related cognitive problems. Additionally, the accessibility provided by those tools is a determinant factor when users need to adapt themselves to a particular technology. Therefore, this paper presents an accessibility model and an evaluation method useful for assessing how accessible serious games are to older adults, based on the Games Accessibility Guidelines (GAG) proposed by the International Game Developers Association and the ISO/IEC 25040. In order to validate and ensure the feasibility of this study, each activity of the proposed method has been applied to a real game that was created for improving certain cognitive functions (i.e., A Clockwork Brain suite of serious games).
2021-01-13
2021-01-13
2020
ARTÍCULO DE CONFERENCIA
978-172819042-6
2573-3060
http://dspace.ucuenca.edu.ec/handle/123456789/35392
https://www.scopus.com/record/display.uri?eid=2-s2.0-85092715120&doi=10.1109%2fSeGAH49190.2020.9201655&origin=inward&txGid=15f5cd4d90be4eb02004ae53c86b44b6
10.1109/SeGAH49190.2020.9201655
es_ES
Institute of Electrical and Electronics Engineers Inc.
oai:dspace.ucuenca.edu.ec:123456789/318052020-08-01T01:16:55Zcom_123456789_21982com_123456789_15col_123456789_21983
Link between cattle and the trophic status of tropical high mountain lakes in páramo grasslands in Ecuador
Van Colen, Willem
Hampel, Henietta
Muylaert, Koenraad
High-Elevation Tropical Lakes
Livestock
Páramo
Pasture
The high-altitude
páramo grasslands of the Andes Mountains are rich in lakes that
represent a source of high-quality
water for the region. Páramo grasslands are mainly
used for cattle grazing. The aim of this study was to investigate the influence of cattle
on the trophic status of páramo lakes. In a survey of 30 lakes in Cajas National Park
(NP), a semi-quantitative
estimate for cattle abundance in the vicinity of the lakes
was the best predictor of the chlorophyll-a
concentrations in the lakes. Cattle abundance
was also significantly related to phytoplankton community composition, being
associated with a shift from chlorophytes to diatoms and dinoflagellates. Lake
Culibrillas, a lake situated in the Sangay National Park (Sangay NP), a region with
much more intensive cattle farming than Cajas NP exhibited a chlorophyll-a
concentration
greater than twice as much as the largest concentration measured in the Cajas
NP lakes, being characterized by a dinoflagellate bloom. Although chlorophyll-a
concentrations
increased with cattle abundance, the concentrations in all the study lakes
remained low (0.02–1.8 μg/L), indicating that extensive cattle farming does not cause
severe eutrophication. The results of this study nevertheless indicate that intensification
of livestock farming in páramo grasslands might result in a deterioration of
water quality in the páramo lakes.
The high-altitude
páramo grasslands of the Andes Mountains are rich in lakes that
represent a source of high-quality
water for the region. Páramo grasslands are mainly
used for cattle grazing. The aim of this study was to investigate the influence of cattle
on the trophic status of páramo lakes. In a survey of 30 lakes in Cajas National Park
(NP), a semi-quantitative
estimate for cattle abundance in the vicinity of the lakes
was the best predictor of the chlorophyll-a
concentrations in the lakes. Cattle abundance
was also significantly related to phytoplankton community composition, being
associated with a shift from chlorophytes to diatoms and dinoflagellates. Lake
Culibrillas, a lake situated in the Sangay National Park (Sangay NP), a region with
much more intensive cattle farming than Cajas NP exhibited a chlorophyll-a
concentration
greater than twice as much as the largest concentration measured in the Cajas
NP lakes, being characterized by a dinoflagellate bloom. Although chlorophyll-a
concentrations
increased with cattle abundance, the concentrations in all the study lakes
remained low (0.02–1.8 μg/L), indicating that extensive cattle farming does not cause
severe eutrophication. The results of this study nevertheless indicate that intensification
of livestock farming in páramo grasslands might result in a deterioration of
water quality in the páramo lakes.
2019-01-21
2019-01-21
2018
ARTÍCULO
1440-1770
http://dspace.ucuenca.edu.ec/handle/123456789/31805
https://onlinelibrary.wiley.com/doi/abs/10.1111/lre.12237
10.1111/lre.12237
es_ES
oai:dspace.ucuenca.edu.ec:123456789/384002022-03-08T10:05:45Zcom_123456789_21982com_123456789_15col_123456789_21983
Improving water management education across the Latin America and caribbean region
Reinstorf, Frido
Rodríguez Tejeda, Raymundo C.
Vazquez Zambrano, Raul Fernando
Ho, Long
Goethals, Peter
Schneider, Petra
Dominguez Granda, Luis Elvin
Hampel , Henrietta
Lam, Norris
Nolivos Alvarez, Indira Yadira
Lyon, Steve W.
Latin America
Water Resources
MSc
Education
Education can help secure inclusive and resilient development around water resources. However, it is difficult to provide the latest science to those managing water resources (both now and in the future). Collectively, we hypothesize that dissemination and promotion of scientific knowledge using students as central agents to transfer theoretical knowledge into practice is an efficient way to address this difficulty. In this study, we test this hypothesis in the Latin America and Caribbean (LAC) region as a representative case study region. First, we use a literature review to map a potential gap in research on education around water resources across the LAC region. We then review potential best practices to address this gap and to better translate water resources education techniques into the LAC region. Integral to these efforts is adopting students as agents for information transfer to help bridge the gap between the global state-of-the science and local water resources management. Our results highlight the need to establish a new standard of higher educational promoting exchange between countries as local populations are vulnerable to future shifts in climate at global scales and changes in land usage at regional scales. The new standard should include peer-to-peer mentoring achieved by jointly exchanging and training students and practitioners in water management techniques, increasing access to water data and pedagogic information across the region, and lowering administration roadblocks that prevent student exchange
2022-03-07
2022-03-07
2019
ARTÍCULO
2073-4441
http://dspace.ucuenca.edu.ec/handle/123456789/38400
https://www.scopus.com/record/display.uri?eid=2-s2.0-85075558170&origin=resultslist&sort=cp-f&src=s&st1=Improving+Water+Management+Education+across+the+Latin+America+and+Caribbean+Region&sid=dc514c163edc49576a634cf77683379c&sot=b&sdt=b&sl=97&s=TITLE-ABS-KEY%28Improving+Water+Management+Education+across+the+Latin+America+and+Caribbean+Region%29&relpos=0&citeCnt=3&searchTerm=&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
10.3390/w11112318
es_ES
oai:dspace.ucuenca.edu.ec:123456789/424362023-07-19T16:52:00Zcom_123456789_21982com_123456789_15col_123456789_21983
Una nueva visión de las extracciones seriadas: Revisión de la literatura
Yamunaque Vire, Jessica Micaela
Barzallo Sardi, Vinicio Egidio
Torres Tamayo, Gabriela Cecibel
Yunga Picon, Maria Yolanda
Uguña Andrade, Fernando Paul
Extracciones en serie
Extracción seriada
Dentición mixta
Ortodoncia interceptiva
La extracción seriada es un procedimiento de Ortodoncia que se realiza en pacientes de dentición mixta, que implica la extracción de dientes temporales y permanentes de manera secuencial, para mejorar la alineación de los dientes permanentes, reducir el apiñamiento de los arcos y disminuir la complejidad de un posterior tratamiento ortodóncico. El objetivo de este estudio fue determinar, a través de la revisión de la literatura más reciente, el beneficio de realizar extracciones seriadas como procedimiento de Ortodoncia Interceptiva, así como también; ampliar el conocimiento sobre las indicaciones, contraindicaciones, ventajas y desventajas de llevar a cabo este procedimiento, con el propósito de establecer un correcto diagnóstico, planificación y posterior tratamiento. Se seleccionaron 15 artículos científicos de la base de datos PubMed y Science Direct, en los que se pone de manifiesto que la extracción seriada es un tratamiento que depende de la edad, la discrepancia óseo dentaria, del perfil facial, la relación maxilo mandibular y de las clases de maloclusión. Podemos concluir que es imprescindible realizar un diagnóstico correcto previo al procedimiento y una toma de decisiones de forma individualizada para cada paciente.
Serial extraction is an Orthodontic procedure performed in patients with mixed dentition, which involves the extraction of temporary and permanent teeth in a sequential manner, to improve the alignment of the permanent teeth, reduce the crowding of the arches and reduce the complexity of subsequent orthodontic treatment. The objective of this study was to determine, through the most recent literature review, the benefit of performing serial extractions as an Interceptive Orthodontic procedure, as well as; expand knowledge about the indications, contraindications, advantages and disadvantages of carrying out this procedure, in order to establish a correct diagnosis, planning and subsequent treatment. Fifteen scientific articles were selected from the PubMed and Science Direct databases, which show that serial extraction is a treatment that depends on age, dental bone discrepancy, facial profile, maxillary and mandibular relationship. the kinds of malocclusion. We can conclude that it is essential to make a correct diagnosis prior to the procedure and make decisions individually for each patient.
2023-07-19
2023-07-19
2020
ARTÍCULO
1317-5823
http://dspace.ucuenca.edu.ec/handle/123456789/42436
https://www.ortodoncia.ws/publicaciones/2020/art-78/
es_ES
oai:dspace.ucuenca.edu.ec:123456789/289702020-08-01T01:14:20Zcom_123456789_21982com_123456789_15col_123456789_21983
Effect of hot water extracted hardwood and softwood chips on particleboard properties
Pelaez Samaniego, Manuel Raul
Hemicelluloses
Hot Water Extraction
Lignin
Particleboard
Springback
Wood-Water Affinity
The affinity of particleboard (PB) to water is one of the main limitations for using PB in moisture-rich environments. PB dimensional stability and durability can be improved by reducing the available hydroxyl groups in wood through hemicellulose removal, for example, by hot water extraction (HWE), which increases wood resistance to moisture uptake. The resulting liquid fraction from HWE is rich in hemicelluloses and can be used for chemicals and fuels, and the solid fraction is less hydrophilic. The objective of this study was to investigate the effects of HWE of softwood chips (conducted at 160°C and 90 min) and hardwood chips (160°C and 120 min) on the properties of PB panels. HWE increased compressibility and reduced springback by 34% and 44% for pine and maple chips, respectively, which positively impacted the PB properties. Water absorption of pine PB panels was lowered by 35% and that of maple PB panels by 30%, while reduction of thickness swelling was lowered by 39% for pine PB and 56% for maple PB after 24 h of immersion in water. The mechanical properties were not significantly affected.
2018-01-11
2018-01-11
2014-10-01
Article
183830
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908201658&doi=10.1515%2fhf-2013-0150&partnerID=40&md5=ecd32ab5b43079ae6a8a39279b2d9854
http://dspace.ucuenca.edu.ec/handle/123456789/28970
10.1515/hf-2013-0150
en_US
WALTER DE GRUYTER GMBH
oai:dspace.ucuenca.edu.ec:123456789/422422023-06-20T20:04:56Zcom_123456789_21982com_123456789_15col_123456789_21983
Relación de las metas de logro parental con el apoyo a la autonomía y el control psicológico percibido por los adolescentes
Arpi Peñaloza, Nube del Rocío
Conforme Zambrano, Elsa Gardenia
Palacios Madero, Maria Dolores
Morales Quizhpi, Juana
Apoyo a la autonomía
Metas de logro parental
Control psicológico
Autonomía adolescentes
El objetivo del estudio fue identificar las metas de logro y prácticas parentales de apoyo a la autonomía y control psicológico, para
determinar la relación entre estas medidas, según el nivel de estudios, el sexo de los progenitores y de los adolescentes de Cuenca,
Ecuador. Para ello, se realizó un estudio cuantitativo, relacional, de corte transversal con una muestra constituida por 713 madres (Meda d = 43, DT = 7), 543 padres (Medad = 46,
DT = 8) y 1085 adolescentes (Medad = 16.1,
DT = 1.1). Se aplicó el cuestionario Parental
de Metas Orientadas al Logro, adaptado al
español del instrumento Parental Achieve ment Goals AGQ y Autonomy Support Scale.
La subteoría de contenido de metas de la teoría de la autodeterminación ha sido la base teórica para explicar que las metas de logro parental orientan el apoyo a la autonomía y el control psicológico. Se emplearon las pruebas t-Student, ANOVA, chi-Cuadrado de inde pendencia para tablas de contingencia y el coeficiente de correlación r de Pearson para establecer la relación lineal de las variables de estudio. Los resultados revelan que las metas de logro, dominio de la tarea y éxito en la tarea son predominantes, mientras que la evitación del fracaso en la tarea es baja. Por otro lado, la práctica de apoyo a la autonomía se percibe alta y significativamente mayor al control psicológico. Finalmente, se confirma la relación de las medidas parentales con el nivel de estudios y el sexo de los progenitores y de los adolescentes
The importance of parental practices as one
the most direct influences on the development
of minors and adolescents has generated an
increased relevance in recent decades of the
study of parental expectations on the psychological adjustment of children. In this sense,
the Goal Content Subtheory of Self-Determination Theory has been the theoretical basis
to explain that the purpose of human behavior
responds to an extrinsic or intrinsic motivation. That is why, extrinsic motivation guides
parents towards parental goals: the success of
the task and the avoidance of task failure and
they adopt more parental control strategies
with their progeny, while intrinsic motivation
guides the mastery goals of the task which
would explain parental support behaviors.
The objective of the study was to identify
the achievement goals and parenting practices,
support for autonomy-psychological control,
and to determine the relationship between
these parenting measures, according to the
sex and educational level of the parents from
Cuenca, Ecuador. For this, a quantitative, relational, cross-sectional study was carried out
with 713 mothers (Medad = 43, DT = 7), 543
fathers (Medad = 46, DT = 8) and 1 085 adolescents (Medad = 16.1, DT = 1.1). The participants
were selected from within 18 educational
institutions through a probabilistic sample
calculated with a 95 % confidence level, and
a 3 % margin of error. For data collection, the
Parental Achievement-Oriented Goals questionnaire was applied, adapted to Spanish
from the Parental Achievement Goals AGQ
instrument; and Autonomy Support Scale. In
the data analysis, the T-Student test, ANOVA,
Chi-Square, test of independence for contingency tables and the Pearson r correlation
coefficient, were used for the linear relationship of the study variables.
The results reveal that the achievement
goals: mastery of the task and success in the
task predominate and the avoidance of failure
in the task is low, in terms of the sex of the
parents, the parents were oriented towards
the mastery of the task while mothers toward
goals focused on homework success. Likewise, parents with a low level of education
orient themselves to success in the result of the
task and the avoidance of failure in the task,
while parents with a higher level of education orient their goals of parental achievement
towards the mastery of the homework. The
perception of support for autonomy is high
and significantly upper than the psychological control of the parents, it was found that
the manifestation of support “being aware
of accepting and acknowledging the child’s
feelings” is the most valued statement in the
mother in relation to the dad. On the other
hand, adolescents perceive greater psychological control from mothers than from fathers, in
the demonstrations “threatening to punish the
child” and “induce guilt”. Regarding the level
of studies of the parents, the results indicate
that the higher the level of studies, the greater
the support for autonomy and when is lower
the level of studies, there is greater psychological control.
This research has confirmed the relationship
between the level of education of the parents,
the sex the adolescent and parents with the
goals of parental achievement, support and
psychological control; this shows that these
characteristics affect parental practices. It is
necessary for future research to attention on
the educational level of the parents, as this is
one of the most consistent family variables
that can favor appropriate parental goals and
practices for the psychosocial adjustment of
the children.
2023-06-20
2023-06-20
2023
ARTÍCULO
1668-7027
http://dspace.ucuenca.edu.ec/handle/123456789/42242
http://www.ciipme-conicet.gov.ar/ojs/index.php?journal=interdisciplinaria&page=article&op=view&path%5B%5D=976
10.16888/interd.2023.40.2.8
es_ES
oai:dspace.ucuenca.edu.ec:123456789/338822020-08-01T01:12:17Zcom_123456789_21982com_123456789_15col_123456789_21983
Two-step accelerating freezing protocol yields a better motility, membranes and DNA integrities of thawed ram sperm than three-steps freezing protocols
Galarza Lucero, Diego Andres
López Sebastián, Antonio
Woelders, Henri
Blesbois, Elizabeth
Santiago Moreno, Julián
Ram
Semen cryopreservation
Cooling
Semen quality
DNA integrity
El presente estudio compara un protocolo que imita la congelación del semen de ram en vapor de nitrógeno estático con dos protocolos con una velocidad de enfriamiento baja inicial en el primer paso, seguido de velocidades de enfriamiento más altas donde ocurre la nucleación de hielo. Los eyaculados de semen, obtenidos de doce carneros adultos, se diluyeron con un extensor basado en TEST y se congelaron con el Protocolo 1 (enfriamiento de desaceleración en tres pasos): de +5 ºC a -35 ºC (40 ºC / min), de -35 ºC a -65 ºC (17 ºC / min), y luego de -65 ºC a -85 ºC (3 ºC / min); o Protocolo 2 (enfriamiento acelerado en tres pasos): de +5 ºC a -5 ºC (4 ºC / min), de -5 ºC a -110 ºC (25 ºC / min), y luego de -110 ºC a -140 ºC (35 ºC / min); o Protocolo 3 (enfriamiento acelerado en dos etapas), de +5 ºC a -10 ºC (5 ºC / min), y luego de -10 ºC a -130 ºC (60 ºC / min). La calidad del esperma después de la descongelación se redujo para todos los protocolos (p <.05) en comparación con el semen fresco. Los porcentajes posteriores a la descongelación de las características de movilidad de los espermatozoides y los espermatozoides con membrana plasmática intacta, acrosoma intacto y membrana mitocondrial intacta fueron mayores utilizando el Protocolo 3 que el Protocolo 2 (p <.05) y el Protocolo 1 (p <.01). Además, el porcentaje de esperma después del descongelamiento con ADN fragmentado fue menor (p <.05) usando el Protocolo 3 en comparación con el Protocolo 1. Los resultados actuales indican que una velocidad de enfriamiento de 60 ºC / min alrededor y después del punto de tiempo del hielo la nucleación proporcionó una mejor supervivencia después de la descongelación y la función de los espermatozoides de ram que las tasas de enfriamiento más bajas (y / o desaceleración)
The present study compares a protocol that mimics freezing of ram semen in static nitrogen vapor with two protocols with an initial low cooling rate in the first step, followed by higher cooling rates where ice nucleation occurs. Semen ejaculates, obtained from twelve adults rams, were diluted with TEST-based extender and frozen with either Protocol 1 (three-step decelerating cooling): from +5 ºC to -35 ºC (40 ºC/min), from -35 ºC to -65 ºC (17 ºC/min), and then from -65 ºC to -85 ºC (3 ºC/min); or Protocol 2 (three-step accelerating cooling): from +5 ºC to -5 ºC (4 ºC/min), from -5 ºC to -110 ºC (25 ºC/min), and then from -110 ºC to -140 ºC (35 ºC/min); or Protocol 3 (two-step accelerating cooling), from +5 ºC to -10 ºC (5 ºC/min), and then from -10 ºC to -130 ºC (60 ºC/min). Post-thaw sperm quality was reduced for all protocols (p < .05) compared with fresh semen. Post-thaw percentages of sperm motility characteristics and sperm with intact plasma membrane, intact acrosome, and intact mitochondrial membrane were greater using Protocol 3 than Protocol 2 (p < .05) and Protocol 1 (p < .01). In addition, the post-thaw percentage of sperm with fragmented DNA was lower (p < .05) using Protocol 3 compared with Protocol 1. The present results indicate that a cooling rate of 60 ºC/min around and after the time point of ice nucleation provided better post thaw survival and function of ram sperm than lower (and/or decelerating) cooling rates
2020-01-31
2020-01-31
2019
ARTÍCULO
0011-2240
https://doi.org/10.1016/j.cryobiol.2019.10.007
10.1016/j.cryobiol.2019.10.007
es_ES
oai:dspace.ucuenca.edu.ec:123456789/395622022-08-09T10:03:00Zcom_123456789_21982com_123456789_15col_123456789_21983
MOET efficiency in a spanish herd of japanese black heifers and analysis of environmental and metabolic determinants
Astiz, Susana
Fernández Novo, Aitor
Pesantez Pacheco, Jose Luis
Pérez Villalobos, Natividad
Bonet Bo, Martín
Sebastián, Francisco
Pérez Garnelo, Sonia Salomé
Martínez Bello, Daniel
Villagrá García, Arantxa
Gardón J., Juan Carlos
Vazquez Mosquera, Juan Mesias
Mercado, Eduardo de
Pérez Solana, María Luz
Japanese Black
Donor
Recipients
Management
Cholesterol
Multiple ovulation and embryo transfer (MOET) systems have been intensively imple-mented in Japanese Black cattle in Japan and to create Japanese Black herds out of these areas. Environmental conditions influence MOET efficiency. Thus, we describe results of 137 in vivo, non-surgical embryo flushings performed between 2016–2020, in a full-blood Japanese Black herd kept in Spain and the possible effects of heat, year, bull, donor genetic value, and metabolic condition. Additionally, 687 embryo transfers were studied for conception rate (CR) and recipient related fac-tors. A total of 71.3% of viable embryos (724/1015) were obtained (5.3 ± 4.34/flushing). Donor metabolites did not affect embryo production (p > 0.1), although metabolite differences were observed over the years, and by flushing order, probably related to the donor age. CR was not affected by embryo type (fresh vs. frozen), recipient breed, and whether suckling or not suckling (p > 0.1). CR decreased significantly with heat (44.3 vs. 49.2%; (p = 0.042)) and numerically increased with recipient parity and ET-number. Pregnant recipients showed significantly higher levels of choles-terol-related metabolites, glucose, and urea (p < 0.05). Therefore, adequate MOET efficiency can be achieved under these conditions, and heat stress should be strongly avoided during Japanese Black embryo transfers. Moreover, recipients’ metabolites are important to achieve pregnancy, being probably related to better nutrient availability during pregnancy.
2022-08-03
2022-08-03
2022
ARTÍCULO
2079-7737
http://dspace.ucuenca.edu.ec/handle/123456789/39562
https://api.elsevier.com/content/abstract/scopus_id/85123988814
10.3390/biology11020225
es_ES
oai:dspace.ucuenca.edu.ec:123456789/220842020-08-01T01:11:49Zcom_123456789_21982com_123456789_15col_123456789_21983
Uncertainties in climate change projections and regional downscaling in the tropical Andes: Implications for water resources management
Buytaert, Wouter
Vuille, M.
Dewulf, A.
Urrutia, R.
Karmalkar, Ambarish
Célleri, Rolando
Climate Change
Water Resources
Regional Models Of Changes
Andes
Ecuador
Climate Model
Stream Flow
Se espera que el cambio climático tenga un gran impacto sobre los recursos hídricos en todo el mundo. Un problema importante en eva- AS- el impacto potencial del cambio climático sobre estos recursos es la diferencia en la escala espacial entre las proyecciones del cambio climático disponibles y la gestión de los recursos hídricos. Los modelos climáticos regionales (MCR) se utilizan a menudo para la desagregación cial espacial de las salidas de circulación global modelos. Sin embargo, los MCR son para funcionar y por lo general sólo un pequeño número de modelo se ejecuta está disponible para una región de interés ciertos requiere mucho tiempo. Este trabajo investiga el valor de la representación mejorada de los procesos climáticos locales por un modelo climático regional para la gestión de los recursos hídricos en los Andes tropicales de Ecuador. Esta región tiene una hidrología compleja y sus recursos hídricos están bajo presión. En comparación con el modelo conjunto IPCC AR4, el PRECIS modelo climático regional en efecto capturar gradientes locales mejores que los modelos globales, pero localmente el modelo es propenso a las grandes discrepancias entre sanea- precip- observados y modelados. Se concluye que un incremento adicional en la resolución es necesario para representar gradientes locales correctamente. Más aún, para evaluar la incertidumbre en la reducción de escala, un conjunto de modelos climáticos regionales se debe implementar. Por último, la traducción de las variables climáticas de flujo fluvial utilizando un modelo hidrológico constituye una fuente más pequeña pero no desdeñable de incertidumbre.
Climate change is expected to have a large impact on water resources worldwide. A major problem in assessing
the potential impact of a changing climate on these resources is the difference in spatial scale between available
climate change projections and water resources management. Regional climate models (RCMs) are often used for the spatial disaggregation of the outputs of global circulation models. However, RCMs are time-intensive to run and typically only a small number of model runs is available for a certain region of interest. This paper investigates the value of the improved representation of local climate processes by a regional climate model for water resources management in the tropical Andes of Ecuador. This region has a complex hydrology and its water resources are under pressure. Compared to the IPCC AR4 model ensemble, the regional climate model PRECIS does indeed capture local gradients better than global models, but locally the model is prone to large discrepancies between observed and modelled precipitation. It is concluded that a further increase in resolution is necessary to represent local gradients properly. Furthermore, to assess the uncertainty in downscaling, an ensemble of regional climate models should be implemented. Finally, translating the climate variables to streamflow using a hydrological
model constitutes a smaller but not negligible source of uncertainty.
2015-06-11
2015-06-11
2010-07-15
Article
http://dspace.ucuenca.edu.ec/handle/123456789/22084
doi:10.5194/hess-14-1247-2010
eng
http://creativecommons.org/licenses/by-nc-sa/3.0/ec/
openAccess
oai:dspace.ucuenca.edu.ec:123456789/390842022-06-09T13:04:29Zcom_123456789_21982com_123456789_15col_123456789_21983oai:dspace.ucuenca.edu.ec:123456789/380532022-02-15T10:02:30Zcom_123456789_21982com_123456789_15col_123456789_21983
Towards the Evaluation of the Performance Efficiency of Fog Computing Applications
Valdez Solis, Wilson Fernando
Chavez Zambrano, Kevin Eduardo
Cedillo Orellana, Irene Priscila
Barzallo Sagbay, Ana Lucia
Espinoza Suarez, Sebastian Marcelo
Erazo Garzon, Lenin Xavier
Evaluation
Fog computing
Measurement
Metric
Performance efficiency
Quality model
Nowadays, Cloud Computing represents an effective solution for organizations that need to adopt a model of elastic computing services and pay-as-you-go. However, in new domains, such as Cyber-Physical Systems and the Internet of Things (IoT), which manage large volumes of data, the time of latency in communication between the Cloud server and users, as well as data processing costs, can be a limitation. Therefore, it is proposed the Fog Computing architecture, which is used as a mediator among IoT devices that generate and demand data (e.g., cellphones, video cameras, sensors) and Cloud infrastructure. The purpose of Fog Computing is to relieve the Cloud server load and to delegate it to intermediate devices. In this context, it is essential to measure the performance to evaluate the solution and exploit all the advantages provided by Fog nodes. This paper presents a performance efficiency quality model for Fog Computing applications. The model breaks down in sub-characteristics and attributes with defined metrics and thresholds that should be used to evaluate these kinds of applications to understand how efficient is the use of computational resources (i.e., time, processing, memory). Also, it is offered an evaluation method that is supported by the quality model to assess the software development process for Fog Computing applications. The evaluation method is aligned with the ISO/IEC 25040 standard and indicates the developer steps towards a good quality Fog Computing solution.
2022-02-14
2022-02-14
2021
ARTÍCULO DE CONFERENCIA
978-303073099-4
2194-5357
http://dspace.ucuenca.edu.ec/handle/123456789/38053
https://www.scopus.com/record/display.uri?eid=2-s2.0-85105963529&origin=resultslist&sort=plf-f&src=s&st1=Towards+the+Evaluation+of+the+Performance+Efficiency+of+Fog+Computing+Applications&sid=5ea06314cd57bc8c387d9391b5e06c2f&sot=b&sdt=b&sl=97&s=TITLE-ABS-KEY%28Towards+the+Evaluation+of+the+Performance+Efficiency+of+Fog+Computing+Applications%29&relpos=0&citeCnt=0&searchTerm=
10.1007/978-3-030-73100-7_62
es_ES
Springer
oai:dspace.ucuenca.edu.ec:123456789/345092021-06-18T19:05:57Zcom_123456789_21982com_123456789_15col_123456789_21983
A data infrastructure for managing information obtained from ambient assisted living
Valdez Solis, Wilson Fernando
Cedillo Orellana, Irene Priscila
Trujillo Orellana, Andrea Alexandra
Orellana Cordero, Marcos Patricio
Assisted living
Cloud computing
Cost reduction
Internet of things
Protocols
The Internet of Things (IoT) is a current paradigm which can be part of several fields of application, and Healthcare is one of the most important. Ambient Assisted Living (AAL) is an important subfield in Healthcare. Also, services demand and network requirements of IoT systems due to the increase of connected devices and data flow overcharges Cloud. Fog Computing represents a new paradigm that lightens the network. Some applications use Fog Computing in order to reduce costs and improve performance of IoT applications. Healthcare is one of them and the implementation of Fog Computing architectures inside those systems is a new trend nowadays. The importance of having a data infrastructure in this kind of IoT systems is evident because of the relevance of the data. In this paper is presented a Data Infrastructure for Managing Information Obtained from Ambient Assisted Living. The model provides the data flow starting in the data reading in the IoT devices and ending in the Cloud by crossing Fog Computing Layer. The model considers communication protocols, security features and relationship between elements which take part in an AAL system. Moreover, the model was developed using Eclipse Modeling Tool and validated in the same tool by using an instantiation of the main classes of the model.
The Internet of Things (IoT) is a current paradigm which can be part of several fields of application, and Healthcare is one of the most important. Ambient Assisted Living (AAL) is an important subfield in Healthcare. Also, services demand and network requirements of IoT systems due to the increase of connected devices and data flow overcharges Cloud. Fog Computing represents a new paradigm that lightens the network. Some applications use Fog Computing in order to reduce costs and improve performance of IoT applications. Healthcare is one of them and the implementation of Fog Computing architectures inside those systems is a new trend nowadays. The importance of having a data infrastructure in this kind of IoT systems is evident because of the relevance of the data. In this paper is presented a Data Infrastructure for Managing Information Obtained from Ambient Assisted Living. The model provides the data flow starting in the data reading in the IoT devices and ending in the Cloud by crossing Fog Computing Layer. The model considers communication protocols, security features and relationship between elements which take part in an AAL system. Moreover, the model was developed using Eclipse Modeling Tool and validated in the same tool by using an instantiation of the main classes of the model.
2020-06-15
2020-06-15
2019
ARTÍCULO DE CONFERENCIA
978-172815581-4
0000-0000
https://ieeexplore.ieee.org/document/9052264
10.1109/INCISCOS49368.2019.00018
es_ES
Institute of Electrical and Electronics Engineers Inc.
oai:dspace.ucuenca.edu.ec:123456789/384922022-03-15T10:05:04Zcom_123456789_21982com_123456789_15col_123456789_21983
Avances en el conocimiento de la relación entre la movilidad activa a la escuela y el entorno urbano
Naranjo Serrano, Monica Gabriela
Orellana Vintimilla, Daniel Augusto
Quezada Larriva, Adriana Eulalia
Hermida, Carla Marcela
Peña Rosas, Jaime Andres
Movilidad no motorizada
Movilidad activa
Transporte sustentable
Movilidad escolar
Se ha demostrado que la movilidad activa para los niños en edad escolar es fundamental para la salud, las relaciones sociales y el desempeño académico. Por ello, resulta preocupante que, en las últimas décadas, la movilidad activa hacia las escuelas haya disminuido. A pesar de que existe un creciente interés en promover la movilidad escolar a pie y en bicicleta, la evidencia científica es dispersa y poco estructurada, lo que dificulta la toma de decisiones adecuadas. En este artículo buscamos aportar a la sistematización del conocimiento acerca de movilidad escolar activa a través de una revisión de la literatura científica de los años 2009-2019 incluida en la base de datos bibliográfica Scopus. Se evidencia que las decisiones al respecto son tomadas principalmente por los padres, quienes ven como una barrera fundamental para la movilidad activa la inseguridad, tanto vial como personal; sin embargo, también inciden factores relacionados con el entorno construido, las condiciones sociodemográficas de los barrios, la distancia, el clima y la conveniencia de los padres. La revisión de la literatura evidencia también la concentración de este tipo de estudios en países desarrollados, y la incipiente investigación sobre la temática en países en vías de desarrollo.
Active mobility for school-age children has been demonstrated
to be critical to health, social relationships, and academic
performance. That is why it is worrying that active mobility to
schools has decreased in recent decades. Despite the growing
interest in promoting school mobility on foot and by bicycle,
the scientific evidence is scattered and poorly structured,
making it difficult to make good decisions. This article aims
to contribute to the systematization of knowledge about active
school mobility through a review of scientific literature of
the years 2009-2019, included in the bibliographic database
Scopus. Parents make decisions about mobility mainly by
parents, who see insecurity and road safety as barriers to
active mobility. Factors related to the built environment, the
socio-demographic conditions of the neighborhoods, the
distance, the climate, and the convenience of the parents also
have an influence. The literature review has also evidenced
the concentration of studies in developed countries and the
developing research on the subject in developing countries.
2022-03-09
2022-03-09
2021
ARTÍCULO
0717-5051
http://dspace.ucuenca.edu.ec/handle/123456789/38492
https://revistas.uchile.cl/index.php/RU/article/view/58168
10.5354/0717-5051.2021.58168
es_ES
oai:dspace.ucuenca.edu.ec:123456789/370352021-10-19T10:02:30Zcom_123456789_21982com_123456789_15col_123456789_21983
Análisis exploratorio de la relación entre ansiedad e inteligencia emocional de estudiantes universitarios cuidadores y no cuidadores durante la pandemia de Coronavirus. Caso: Cuenca, Ecuador
Romero Cisneros, Denisse Micaela
Guerrero Jimenez, Kattya Mineska
Tacuri Reino, Rene David
Pacheco Ortega, Jimmy Mauricio
Escala de ansiedad de Hamilton
Cuidadores
Escala de inteligencia emocional de Wong y Law (WLEIS)
Inteligencia emocional
Ansiedad
Estudiantes no cuidadores
La investigación examinó la relación entre la inteligencia emocional y ansiedad en estudiantes universitarios cuidadores y nocuidadores durante la pandemia de coronavirus. Varios estudios señalan la aparición de factores de riesgo para la salud mental, como la ansiedad, durante una emergencia sanitaria. Si bien la inteligencia emocional podría ayudar como un factor protección, aún no está claro de si este y otros factores se diferencian cuando las personas actúan como cuidadores. Los participantes eneste estudio fueron 60 estudiantes universitarios: 28 cuidadores y 32 no cuidadores. La investigación tuvo un diseño descriptivo y transversal no experimental, y utilizó la escala de inteligencia emocional de Wong y Law (WLEIS) y la escala de Ansiedad de Hamilton como instrumentos para medir la relación entre ansiedad e inteligencia emocional. Los resultados mostraron que no existen diferencias significativas entre el grupo de cuidadores y no cuidadores, mientras que se encontró una correlación significativa entre la ansiedad y los niveles de inteligencia emocional, niveles más altos de inteligencia emocional producen niveles más bajos de ansiedad psíquica. Los resultados del estudio exploratorio sugieren incluir en futuras investigaciones variables como la resiliencia y la incertidumbre.
The research examined the relationship between emotional intelligence and anxiety incaregiver and non-caregiver college students during the corona pandemic. Several studies indicate the emergence of mental health risk factors, such as anxiety, during a health emergency. Whereas emotional intelligence could help as a protective factor, itis a question of whether this and other factors differentiate when people act as caregiver. Sixty college students, respectively 28 caregivers and 32 non-caregivers, participated in this study. The research had a descriptive and cross-sectional non-experimental design and used the Wong and Law' Emotional Intelligence Scale (WLEIS) and the Hamilton Anxiety scale as instruments for measuring the relationship between anxiety and emotional intelligence. The results showed that no significant differences exist between the group of caregivers and non-caregivers while a significant correlation was found between anxiety and emotional intelligence levels; higher levels of emotional intelligence produce lower levels of psychic anxiety. The findings of this explorative study suggest considering in future research variables such as resilience and uncertainty
2021-10-18
2021-10-18
2021
ARTÍCULO
1390-6143, e2477-8893
http://dspace.ucuenca.edu.ec/handle/123456789/37035
https://doi.org/10.18537/mskn.12.01.04
10.18537/mskn.12.01.04
es_ES
oai:dspace.ucuenca.edu.ec:123456789/405112022-12-17T23:36:25Zcom_123456789_21982com_123456789_15col_123456789_21983
Síndrome de sobrecarga en cuidadores familiares de adultos mayores y factores asociados. Chordeleg, 2017
Ojeda Orellana, Karina Paola
Chamba Ortiz, Paola Alexandra
Cuidadores
Afecciones crónicas múltiples
Ancianos
Estrés psicológico
objective:
to determine the prevalence of Overload syndrome in family caregivers of older adults and its relationship with associated factors in Chordeleg canton during 2017.Material and
methods:
it is a transversal analytical study with 123 family caregivers. The questionnaire of the National Institute of Statistics and Censuses, the Zarit test, the Katz index and the FF-SIL test were used. The variables were expressed in per-centages and absolute frequencies. The associated factors were evaluated through the Prevalence Ra-tio with a confidence interval (95%) and Chi square.
Results:
the highest proportion of individuals was between 40 and 59 years of age; the 73.17% are married; 40.65% had incomplete primary studies and in the relationship with the patient, the 47.15% were children. The 58.50% of the study population showed overload, they have been associated with having more than 5 years as a caregiver (RR 1.42 IC95% 1.07-1.88, p = 0.003) and the severe and moderate disability of the patient (RP 2.46, 95% CI 1.74-3.18, p = 0.000).
Conclusions:
the caregiver profile does not differ from other studies. There was a high prevalence of Overload syndrome, which is associated with having more than 5 years as a caregiver and the moderate-severe disability of the patient.
Objetivo general: determinar la prevalencia del síndrome de sobrecarga en cuidadores familiares de adultos mayores y su relación con factores asociados en el cantón Chordeleg, durante el año 2017. Material y métodos: es un estudio analítico transversal con 123 cuidado-res familiares. Se utilizó el cuestionario del Instituto Nacional de Estadís-ticas y Censos, test de Zarit, índice de Katz y test FF-SIL. Las variables fueron expresadas en porcentajes y en frecuencias absolutas. Los factores asociados fueron evaluados a través de la razón de prevalencia con inter-valo de confianza (95%) y el Chi cuadrado. Resultados: la mayor proporción de individuos tuvo 40 a 59 años de sexo femenino; el 73.17% son casados; el 40.65% tienen estudios primarios incompletos y en la relación con el paciente el 47.15% fueron hijos. El 58.50% de la población del estudio presentó sobrecarga, asociándose a tener más de 5 años como cuidador (RP 1.42 IC95% 1.07-1.88, p=0.003) y a la incapacidad severa y moderada del paciente (RP 2.46, IC95% 1.74 – 3.18, p=0.000).Conclusiones: el perfil del cuidador no difiere de otros estudios.Existió una alta prevalencia de síndrome de sobrecarga, asociándose a tener más de 5 años de cuidador y a la incapacidad moderada-severa del paciente.
2022-12-17
2022-12-17
2019
ARTÍCULO
1390-4450, e 2661-6777
http://dspace.ucuenca.edu.ec/handle/123456789/40511
https://publicaciones.ucuenca.edu.ec/ojs/index.php/medicina/article/view/2544/1776
https://doi.org/10.18537/RFCM.37.01.02
es_ES
oai:dspace.ucuenca.edu.ec:123456789/341262020-03-09T17:27:43Zcom_123456789_21982com_123456789_15col_123456789_21983
todo el titulo cambiado 001
Campoverde Llanos, Edisson Geovanny
AAAdasdasd
AAAAAdasdasd
AAAadasda
2020-03-09
2020-03-09
1990
ARTÍCULO
sdvdsj
https://cdspruebas.ucuenca.edu.ec
j
es_ES
etdms///col_123456789_21983/100