Browsing by Author "Pacheco, Esteban"

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    Anticuerpos antipéptico citruliano en pacientes con artritis reumatoide. Hospital Vicente Corral Moscoso, Facultad de Ciencias Médicas. Cuenca. 2008
    (Universidad de Cuenca. Facultad de Ciencias Médicas, 2012-12) Pacheco, Esteban; Jara, Javier; Pacheco, María Verónica; Guevara, Sergio
    Objective: To determine the sensibility and specificity of the anti-péptico citruliano antibodies versus rheumatoid factor in the diagnosis of patients with rheumatoid arthritis in the Vicente Corral Moscoso Hospital Methods: Two groups, 30 patients with rheuma - toid arthritis according to American College of Rheumatology criteria and 30 control patients were established. They assisted the Vicente Corral Moscoso Hospital ′s Rheumatologic Department from January to May 2008. The laboratory tests were carried out and the results were confronted. The statistic analysis included specificity, sensibility, negative and positive predictor values. Results: The determination of anti-citrulline anti - bodies ELISA second generation show a 53,3% of sensibility, 83,3% of specificity, positive predictor value of 76,19 % and a negative predictor value of 64,10%; to third generation the sensibility was 50%, specificity 86,67%, positive predictor value of 78.95% and a negative predictor value of 63,41 % and the Rheumatoid Factor IgM sen - sibility 53,3%, specificity 70%, positive predictor value 64% and negative predictor value 60%. Conclusion: anti-citrulline antibodies ELISA have a better specificity than Rheumatoid Factor; the sensibility was the same in both tests.
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    Modelación física del flujo a través de las compuertas radiales de la derivadora Cañar
    (Universidad de Cuenca, 2014) Tinoco, Vicente; Cisneros, Felipe; Pacheco, Esteban; Carrillo, Verónica; Calle, Edison; Domínguez, Juan; Garate, Johana; Solís, Katty; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC
    The Cañar River lower basin is a coastal flat area with a high hydro-economic potential, however this zone is vulnerable to flooding. The Ecuadorian Government invests in a flood control project. The project design alternatives need testing in a physical model for supporting the final design. The variables related to the flow through the radial gates of the diversion works are investigated in a physical model. A discharge curve was calibrated for the gate operation. In addition, the best gate location was determined, as well as the optimum still basin depth. Unusual osculation with negative flow directions were found for specific tests. This phenomenon has a scour effect. In order to solve this problem, changes in the geometry of the still basin entrance are recommended by adjusting it to the flow profile.