http://repositorio.cualtos.udg.mx:8080/jspui/handle/123456789/879 2026-04-06T01:37:53Z http://repositorio.cualtos.udg.mx:8080/jspui/handle/123456789/1496 Title: Use of Nanostructured Photocatalysts for Dye Degradation: A Review Authors: Ruiz Santoyo, Víctor; Andrade Espinoza, Beatriz A.; Romero Toledo, Rafael; Anaya Esparza, Luis Miguel; Villagrán de la Mora, Blanca Zuamí; Guerra Contreras, Antonio Abstract: ABSTRACT Among the technologies proposed for wastewater treatment, the Advanced Oxidation Processes are viable and technological strategies for dyes degradation. Different photocatalytic systems classified in metal oxides alone or combined through hybrid composites or immobilized onto supports have been designed in various nanostructured shapes for their application in the photodegradation of polluting dyes. This review aims to describe the dyes as an environmental threat, photocatalysis as an effective process to remove dyes from water and provide an overview of the recent studies using photocatalytic systems grouped according to their development. Furthermore, this review describes the main parameters of a photocatalytic system with an important role in dye photodegradation. Finally, we discuss the limitations of photocatalysis for real industrial applications and the challenges for this environmental nanotechnology. Description: Artículo 2022-05-01T00:00:00Z http://repositorio.cualtos.udg.mx:8080/jspui/handle/123456789/1428 Title: La vivienda sustentable para abatir el cambio climático. Caso Tepatitlán de Morelos Authors: Navarro del Toro, Guillermo José Abstract: Resumen Esta investigación se centró en la búsqueda de materiales y tecnologías para la construcción de viviendas de Tepatitlán de Morelos, Jalisco, México, municipio que se está convirtiendo en un polo de desarrollo de viviendas y servicios atractivo para todo tipo y tamaño de empresas. Aprovechando que la Universidad de Guadalajara cuenta con un campus en Tepatitlán, el Centro Universitario de los Altos (CUAltos), se les solicitó a alumnos allí inscritos que llenaran una encuesta que indagaba sobre los materiales con los que se construyeron las casas que habitaban en ese momento. Participaron 80 alumnos de cuatro grupos. Como parte de los resultados se obtuvo que si a las casas habitación se les provee de dispositivos ahorradores de energía, agua y gas se logrará una reducción importante en la huella ecológica, y por lo tanto, se hará una contribución a la sustentabilidad del medio ambiente. Abstract This research focused on the search for materials and technologies for the construction of homes in Tepatitlán de Morelos, Jalisco, Mexico, a municipality that is becoming an attractive housing and service development center for all types and sizes of companies. Taking advantage of the fact that the University of Guadalajara has a campus in Tepatitlán, the Centro Universitario de los Altos (CUAltos), students registered there were asked to fill out a survey that inquired about the materials with which the houses that lived in that area were built. moment. 80 students from four groups participated. As part of the results, it was obtained that if the houses are provided with energy, water and gas saving devices, a significant reduction in the ecological footprint will be achieved, and therefore, a contribution will be made to the sustainability of the environment. Resumo Esta pesquisa teve como foco a busca de materiais e tecnologias para a construção de casas em Tepatitlán de Morelos, Jalisco, México, um município que está se tornando um pólo de desenvolvimento habitacional e de serviços atraente para empresas de todos os tipos e portes. Aproveitando o fato de que a Universidade de Guadalajara possui um campus em Tepatitlán, o Centro Universitário Los Altos (CUAltos), os alunos ali inscritos foram convidados a responder a uma pesquisa que indagava sobre os materiais com que as casas que moravam naquela área eram construído. momento. Participaram 80 alunos de quatro grupos. Como parte dos resultados, obteve-se que se as habitações forem dotadas de dispositivos economizadores de energia, água e gás, conseguir-se-á uma redução significativa da pegada ecológica e, consequentemente, dar-se-á um contributo para a sustentabilidade do meio ambiente. Description: Artículo 2021-12-01T00:00:00Z http://repositorio.cualtos.udg.mx:8080/jspui/handle/123456789/885 Title: Addition of pentoxifylline to pegylated interferon-alpha-2a and ribavirin improves sustained virological response to chronic hepatitis C virus: a randomized clinical trial Authors: Jiménez Luévano, Miguel Ángel; Lerma Díaz, José Manuel; Hernández Flores, Georgina; Jiménez Partida, Miguel Ángel; Bravo Cuéllar, Alejandro Abstract: Background and aim. The commonly accepted treatment for hepatitis C virus (HCV) infection, pegylated interferon alpha (PEG INF-alpha) and ribavirin, leads to 50-60% of sustained virological response (SVR). On the other hand, pentoxifylline (PTX) possesses antiviral and hepatoprotector properties. Aim. To investigate whether the addition of PTX to conventional hepatitis C treatment increases SVR. Material and methods. Seventy two patients of both genders were studied in a randomized fashion; the diagnosis of chronic HCV infection was made according to clinical and laboratory criteria and histopathologically classified according to METAVIR scoring system criteria. HCV viral load was tested by PCR, baseline, and after 6 months of treatment, as well as anti-HCV, anti-hepatitis B virus , and anti-human immunodeficiency virus antibodies by enzyme-linked immunosorbent assay. During 48 weeks, control group patients were treated with PEG INFalpha-2a plus ribavirin. PTX was administered to Experimental Group patients prior to the treatment. Results. Demographic data were similar in both groups. Experimental- and control-group subjects were at F2 and F3 states according to the METAVIR classification. The most common HCV genotypes were 1a and 1b (39% in the control group in each case, and 42% in the experimental group in each case). At the end of the study, hepatic enzymes and viral load decreased in both groups to similar values. SVR in the experimental group increased significantly (p < 0.05) when compared with standard therapy alone. Conclusion. Addition of PTX to conventional chronic hepatitis C treatment may increase the percentage of patients with SVR. 2013-01-01T00:00:00Z