Browsing by Author "Conchado Martinez, Julio Hector"

Now showing 1 - 2 of 2

Lipid profile and its relationship with body mass index in adolescents of the Particular Educational Unit “Universitaria de Azogues”, Ecuador
(2019) Alvarez Ochoa, Robert Ivan; Conchado Martinez, Julio Hector; Garces Ortega, Juan Pablo; Cordero Cordero, Gabriela Del rosario; Saquicela Espinoza, Luis Alberto; Chuquiralagua Ruiz, Paul Emanuel; Yumisaca Tiuquinga, Silvia Veronica; Gonzalez Ortiz, Diana Patricia; Torres Perez, Angelica Estefania; Rodriguez Torres, Diego Andres
All rights reserved. Introduction: Dyslipidemia and excess weight in adolescents are risk factors for the development of cardiovascular diseases both in this period and in adulthood. Materials and methods: a cross-sectional descriptive study was carried out that included 74 third and fourth year students of the “Private Educational Unit “Universi-tary of Azogues”, to which the body mass index (BMI) was determined from the weight and height, proceeding later to the extraction of a blood sample for the assessment of the lipid profile. Total cholesterol (TC), HDL-cholesterol (c-HDL) and triglycerides (TG) levels were determined using commercial kits (Spinreact®) and LDL-cholesterol (c-LDL) according to Human Frisonex®. Results: It was evidenced in the analysis that 70.3% of students had normal weight and 29.7% were overweight. 35.1% had CT levels in the limit and 9.5% were high. 51.3% showed TG levels and in 9.5% they were high. 94.6% had acceptable levels of c-HDL and c-LDL. 8.1% of the overweight students had high levels of CT and TG. Conclusions: 29.7% of adolescents were overweight and a significantly higher percentage (8.1%) high levels of CT and TG. The percentages of adolescents with overweight, limit and high levels of CT and TG suggest the need to follow them.
Relationship between chlorine decay and temperature in the drinking water
(2020) García Ávila, Fausto Fernando; Sánchez Alvarracín, Carlos Mauricio; Cadme Galabay, Manuel Remigio; Conchado Martinez, Julio Hector; Garcia Mera, George Adalberto; Zhindon Arevalo, Cesar Edmundo
The bulk chlorine decay rate in drinking water supply systems depend on many factors, including temperature. In this document, the method to determine the order of reaction of chlorine with water is reported, as well as the method to estimate Kb (Bulk reaction rate constant). Experiments were carried out to determine the bulk chlorine decay, for which a set of water samples to determine the free residual chlorine every hour were analyzed. Chlorine concentrations were graphed against time and adjusted appropriately to the developed model. The experimental results showed that the average value of the mass decomposition rate was 0.15 h−1. It was shown that temperature affects the variation of the reaction rate of chlorine with water, Kb increases as temperature increases. In this manuscript it is reported: • The method that allows determining the reaction kinetic order of chlorine with drinking water. • The method that can help residual chlorine modelers in the correct definition of the bulk reaction rate constant. • The effectiveness of the method for evaluating the decomposition of residual chlorine in drinking water distribution networks as a function of temperature.