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Search Results: 1 - 10 of 320657 matches for " Patricia V. Torres-Durán "
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The Respiratory Exchange Ratio is Associated with Fitness Indicators Both in Trained and Untrained Men: A Possible Application for People with Reduced Exercise Tolerance
Arnulfo Ramos-Jiménez,Rosa P. Hernández-Torres,Patricia V. Torres-Durán,Jaime Romero-Gonzalez
Clinical Medicine : Circulatory, Respiratory and Pulmonary Medicine , 2008,
Abstract: Background: The respiratory exchange ratio (RER) indirectly shows the muscle′s oxidative capacity to get energy. Sedentarism, exercise and physically active lifestyles modify it. For that reason, this study evaluates the associations between RER during sub-maximum exercise and other well established fitness indicators (body fat, maximum heart rate, maximum O2 uptake, workload, and lactate threshold), in physically active trained and untrained men.Methods: The RER, O2 uptake and blood lactate were measured in eight endurance trained and eight untrained men (age, 22.9 ± 4.5 vs. 21.9 ± 2.8 years; body mass, 67.1 ± 5.4 vs. 72.2 ± 7.7 kg; body fat, 10.6 ± 2.4% vs. 16.6 ± 3.8% and maximum O2 uptake, 68.9 ± 6.3 vs. 51.6 ± 5.8 ml kg 1 min 1), during maximum exercise test and during three different sub-maximum exercises at fixed workload: below, within or above the lactate threshold.Results: Endurance trained men presented higher O2 uptake, lower blood lactate concentrations and lower RER values than those in untrained men at the three similar relative workloads. Even though with these differences in RER, a strong association (p < 0.05) of RER during sub-maximum exercise with the other well established fitness indicators was observed, and both maximum O2 uptake and lactate threshold determined more than 57% of its variance (p < 0.05).Conclusions: These data demonstrate that RER measurement under sub-maximum exercise conditions was well correlated with other established physical fitness indicators, despite training condition. Furthermore, the results suggest that RER could help obtain an easy approach of fitness status under low exercise intensity and could be utilized in subjects with reduced exercise tolerance.
The Respiratory Exchange Ratio is Associated with Fitness Indicators Both in Trained and Untrained Men: A Possible Application for People with Reduced Exercise Tolerance
Arnulfo Ramos-Jiménez, Rosa P. Hernández-Torres, Patricia V. Torres-Durán, Jaime Romero-Gonzalez, Dieter Mascher, Carlos Posadas-Romero and Marco A. Juárez-Oropeza
Clinical Medicine Insights: Circulatory, Respiratory and Pulmonary Medicine , 2012,
Abstract: Background: The respiratory exchange ratio (RER) indirectly shows the muscle′s oxidative capacity to get energy. Sedentarism, exercise and physically active lifestyles modify it. For that reason, this study evaluates the associations between RER during sub-maximum exercise and other well established fitness indicators (body fat, maximum heart rate, maximum O2 uptake, workload, and lactate threshold), in physically active trained and untrained men. Methods: The RER, O2 uptake and blood lactate were measured in eight endurance trained and eight untrained men (age, 22.9 ± 4.5 vs. 21.9 ± 2.8 years; body mass, 67.1 ± 5.4 vs. 72.2 ± 7.7 kg; body fat, 10.6 ± 2.4% vs. 16.6 ± 3.8% and maximum O2 uptake, 68.9 ± 6.3 vs. 51.6 ± 5.8 ml kg 1 min 1), during maximum exercise test and during three different sub-maximum exercises at fixed workload: below, within or above the lactate threshold. Results: Endurance trained men presented higher O2 uptake, lower blood lactate concentrations and lower RER values than those in untrained men at the three similar relative workloads. Even though with these differences in RER, a strong association (p < 0.05) of RER during sub-maximum exercise with the other well established fitness indicators was observed, and both maximum O2 uptake and lactate threshold determined more than 57% of its variance (p < 0.05). Conclusions: These data demonstrate that RER measurement under sub-maximum exercise conditions was well correlated with other established physical fitness indicators, despite training condition. Furthermore, the results suggest that RER could help obtain an easy approach of fitness status under low exercise intensity and could be utilized in subjects with reduced exercise tolerance.
Protective effects of Spirulina maxima on hyperlipidemia and oxidative-stress induced by lead acetate in the liver and kidney
Johny C Ponce-Canchihuamán, Oscar Pérez-Méndez, Rolando Hernández-Mu?oz, Patricia V Torres-Durán, Marco A Juárez-Oropeza
Lipids in Health and Disease , 2010, DOI: 10.1186/1476-511x-9-35
Abstract: The results showed that Spirulina maxima prevented the lead acetate-induced significant changes on plasma and liver lipid levels and on the antioxidant status of the liver and kidney. On the other hand, Spirulina maxima succeeded to improve the biochemical parameters of the liver and kidney towards the normal values of the Control group.It was concluded that Spirulina maxima has protective effects on lead acetate-induced damage, and that the effects are associated with the antioxidant effect of Spirulina.The lead is a xenobiotic, persistent toxic [1,2], as other xenobiotics induces to different health risks since the fetal stage until senescence. On the other hand, although lead is one of the most useful metals, it is also one of the most toxic ones [3]. Also, both occupational and environmental exposures remain a serious problem in many developing and industrializing countries [4].Several reports have indicated that lead can cause neurological, hematological, gastrointestinal, reproductive, circulatory, and immunological pathologies, all of them related to the dose and the amount of time of lead exposure [5-8]. Also, the health risks occasioned by exposure to lead are considered public health problems at a world level.The liver plays a major role in lead's metabolism, and it is in special risk due to the oxidative action of this xenobiotic; given the unquestionable evidence that lead-induced lipid peroxidation of cellular membranes, plays a crucial role in the mechanisms of hepatotoxic action of these xenobiotics [9]. On the other hand, lead is known to also affect the kidney, which is another important target [10]. Lead produces oxidative damage in the kidney as evidenced by enhancing lipid peroxidation (LIP) [11,12].In vivo and in vitro studies suggest that lipid metabolism is altered both in acute and chronic exposure to lead [13]. Lead inhibits antioxidant enzyme activity, such as superoxide dismutase and catalase, and also decreases the level of glutathione, i
Solvent- and Catalyst-Free Microwave-Assisted Decarboxylation of Malonic Acid Derivatives  [PDF]
Fanny Araceli Cabrera-Rivera, Luis Gabriel Hernández-Vázquez, Patricia Flores-Sánchez, Maria Durán-Galván, Jaime Escalante
Green and Sustainable Chemistry (GSC) , 2017, DOI: 10.4236/gsc.2017.74021
Abstract: It has been found that microwave assisted decarboxylation of malonic acid derivatives can be achieved under solvent-free and catalyst free conditions. This new method produces the corresponding carboxylic acid in a pure manner and with a high yield in a very short reaction time: 3 - 10 min. In general terms, the condition under which this reaction is carried out accelerates the decarboxylation significantly of a series of disubstituted malonic acid derivatives, and makes this new process efficient, easy and environmentally friendly.
Algunas Consideraciones sobre la Adopción del Modelo Médico en Psicología: el Caso de las Terapias Empíricamente Fundamentadas
LANDA DURáN,PATRICIA;
Revista Colombiana de Psicología , 2011,
Abstract: this paper takes up the argument regarding the inadequacy of the medical model as an ideologized practice of psychology in the area of abnormal behavior problems. drawing on those behavioral approach arguments that are still valid, in favor of a functional analysis strategy, which is the cornerstone of behavioral assessment, the deprofessionalization is proposed as an alternative ideology to establish criteria for the application of psychological knowledge.
ALGUNAS CONSIDERACIONES SOBRE LA ADOPCIóN DEL MODELO MéDICO EN PSICOLOGíA: EL CASO DE LAS TERAPIAS EMPíRICAMENTE FUNDAMENTADAS / SOME CONSIDERATIONS ON THE ADOPTION OF THE MEDICAL MODEL IN PSYCHOLOGY: THE CASE OF EVIDENCE-BASED THERAPIES
PATRICIA LANDA DURáN
Revista Colombiana de Psicología , 2011,
Abstract: This paper takes up the argument regarding the inadequacyof the medical model as an ideologized practice of psychologyin the area of abnormal behavior problems. Drawing on thosebehavioral approach arguments that are still valid, in favor ofa functional analysis strategy, which is the cornerstone of behavioral assessment, the deprofessionalization is proposed asan alternative ideology to establish criteria for the applicationof psychological knowledge.
Planes de seguridad del agua. Fundamentos y perspectivas de implementación en Colombia
Pérez Vidal,Andrea; Torres Lozada,Patricia; Cruz Vélez,Camilo Hernán;
Ingeniería e Investigación , 2009,
Abstract: drinking-water must be free of pathogens, chemicals, impurities and any other pollutant causing human health problems. latin-america and the caribbean region present water-quality problems due to deficiencies in operating and maintenance and service continuity, the incorrect operation of water treatment plants and distribution networks and unstable household connection. global trends in the drinking-water sector are directed towards methodological developments for assessing and managing risk in water-supply systems as a way of protecting public health. implementing water safety plans (wsp) is a practice which is orientated twards ensuring drinking-water quality; its structure is based on multiple-barrier principles, hazard analysis and critical control points (haccp) and systematic management approaches, such as iso 9001:2000. international experience has shown the benefits of implementing wsp as a strategy for ensuring drinking-water quality and protecting public health. current drinking-water regulations in colombia require implementing risk mapping and evaluating a quality-index which will enable wsp to have good prospects for their shortterm implementation.
Planes de seguridad del agua. Fundamentos y perspectivas de implementación en Colombia Water safety plans. Fundamentals and prospects for implementing them in Colombia
Pérez Vidal Andrea,Torres Lozada Patricia,Cruz Vélez Camilo Hernán
Ingeniería e Investigación , 2009,
Abstract: El agua para consumo humano debe estar libre de organismos patógenos, sustancias químicas, impurezas y cualquier contami- nante que cause problemas a la salud humana. América Latina y el Caribe (ALC) presentan problemas de calidad por deficien- cias en la operación, mantenimiento y continuidad de los servicios, incorrecto funcionamiento de las plantas de tratamiento y precariedad de las redes de distribución e instalaciones domiciliarias. Las tendencias mundiales del sector agua potable están o- rientadas al desarrollo de metodologías para evaluación y gestión del riesgo en los sistemas de abastecimiento para proteger la salud pública. La aplicación de los Planes de Seguridad del Agua (PSA) es una práctica orientada al suministro de agua de cali- dad, cuya estructura se basa en principios de barreras múltiples, análisis de peligros, puntos críticos de control (APPCC) y hacer- camientos sistemáticos de gestión como la ISO 9001:2000. Experiencias internacionales han demostrado los beneficios de im- plementarlos como estrategia para garantizar la calidad del agua potable y la protección de la salud pública. En Colombia, la actual normatividad sobre agua potable exige la implementación de mapas de riesgos y evaluación de índices de calidad, lo que posibilitará que los PSA tengan gran perspectiva de implementación en el corto plazo. Drinking-water must be free of pathogens, chemicals, impurities and any other pollutant causing human health problems. Latin- America and the Caribbean region present water-quality problems due to deficiencies in operating and maintenance and service continuity, the incorrect operation of water treatment plants and distribution networks and unstable household connection. Global trends in the drinking-water sector are directed towards methodological developments for assessing and managing risk in water- supply systems as a way of protecting public health. Implementing water safety plans (WSP) is a practice which is orientated twards ensuring drinking-water quality; its structure is based on multiple-barrier principles, hazard analysis and critical control points (HACCP) and systematic management approaches, such as ISO 9001:2000. International experience has shown the be- nefits of implementing WSP as a strategy for ensuring drinking-water quality and protecting public health. Current drinking-water regulations in Colombia require implementing risk mapping and evaluating a quality-index which will enable WSP to have good prospects for their short-term implementation.
Estudio ECAIS: eventos cardiovasculares adversos inadvertidos en sepsis
Gómez Duque,M.; Enciso Olivera,C.; Pe?a Torres,E.; Segura Durán,O.D.; Nieto Estrada,V.H.;
Medicina Intensiva , 2012,
Abstract: objective: to describe the incidence of cardiovascular adverse events in patients with sepsis in its various stages. design: a longitudinal, descriptive, observational study was carried out. setting: intensive care units of two university hospitals in bogotá (colombia). patients: a number of patients consecutively admitted to the adult icu with a diagnosis of sepsis, and no evidence of previous ischemic myocardial injury. interventions: forty-eight hours of electrocardiographic record using holter technology. main variables: ischemia, cardiac arrhythmia, heart rate variability. results: a total of 100 patients were analyzed, 62% being staged as presenting septic shock. three percent suffered ischemic events detected by holter and unnoticed through conventional monitoring. forty-six percent suffered an arrhythmic event detected by holter, compared with only 6% as detected by conventional monitoring. mortality was 40%. all patients showed loss of heart rate variability. conclusion: in this study patients with sepsis showed a low incidence of cardiovascular ischemic events. in contrast, arrhythmic events showed a high incidence. conventional monitoring failed to detect any of the ischemic events and most arrhythmic events. in this study, cardiovascular events generated by adrenergic discharge had no impact upon mortality.
Playing and Teaching English to Adults
Cuervo Ballén Víctor Manuel,Reyes Oscar Orlando,Torres Díaz Sandra Patricia,Urrea de Garcés Lucila
Profile Issues in Teachers` Professional Development , 2000,
Abstract: This project tried to answer the query: Can adult students (who have not studied English before) speak English if they are given the opportunities to do it? The high school subjects in question belong to Instituto San Fernando Ferrini. Subjects study at night and they have not studied English before so they were afraid. Results suggested that changing parameters such as speaking in English most of the time and including dynamic activities such as games could help adult students feel better about speaking. Further research is needed to describe how to improve pronunciation and writing in adult students. The project was based on the legal framework of MEN (Ministerio de Educación Nacional: Decreto 3011, 1997) that establishes parameters to teach adult students because they have particular characteristics such as families, children, marriages, responsibilities, etc.
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