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Search Results: 1 - 10 of 329642 matches for " óscar Sánchez-Flores "
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Factores de calidad del servicio en el transporte público de pasajeros: estudio de caso de la ciudad de Toluca, México
óscar Sánchez-Flores,Javier Romero-Torres
Economía, sociedad y territorio , 2010,
Abstract: En este artículo se identifican, ponderan y valoran los factores que intervienen en la percepción de la calidad de servicio del transporte público en un corredor urbano que se caracteriza por una gestión delegada con tarifa fija y competencia en calidad. Mediante un modelo logit con especificación lineal de la función de utilidad, se estiman los coeficientes de cada factor de calidad de servicio para diferentes segmentos y estratos de la población. Los resultados de la estimación econométrica determinan la importancia, peso y valor de cada factor en términos de utilidad. De esta manera se obtiene que los factores principales que determinan la calidad del servicio son: el estado físico de los autobuses, la forma de manejo del conductor, la tarifa (costo del viaje), el tiempo que está dentro del autobús (tiempo de viaje) y el trato al usuario.
Formación competencial para la intervención comunitaria Competency-Based Training in Community Work
Isabel Royo-Ruiz,Susana Sánchez-Flores,Joan Lacomba-Vázquez,Elvira Marí-Poveda
Portularia : Revista de Trabajo Social , 2012, DOI: 10.5218/prts.2012.0035
Abstract: Los nuevos problemas sociales se focalizan hoy en sectores que caen en el espacio de la vulnerabilidad de forma sobrevenida y que pueden convertirse en situaciones permanentes. Consideramos que las respuestas activas desde las profesiones sociales deben articularse en contextos de derechos individuales frente a la justicia social, la competitividad frente a la equidad y la inmediatez frente a la sostenibilidad. Por ello es pertinente formar en el ámbito universitario en la capacidad de articular conocimientos, reflexión y sistematización de la experiencia profesional y en posicionamientos éticos que permitan desarrollar un saber intuitivo desde el punto de vista profesional, en relación a la implicación, responsabilidad y efectos de la acción profesional. La aportación fundamental de nuestra propuesta se centra en enfatizar la capacidad de liderar procesos de desarrollo comunitario en los que se maximicen valores poco cotizados en las etapas de crecimiento económico-financiero, pero que cobran gran relevancia en las situaciones de crisis. Nowadays, new social problems take place in sectors that fall in the space of vulnerability in an unexpected way and can become permanent situations. We consider that active answers from the social professions should be articulated by contrasting individual rights and social justice, competitiveness and equality, and immediacy and sustainability. Therefore, we consider it pertinent to provide students at higher education with the abilities to articulate knowledge, to reflect and systematize their professional experience. It is also necessary that they develop ethical attitudes that allow them to gain an intuitive knowledge from the professional point of view, in relation to the implication, responsibility and effects of their professional action.The main contribution of our proposal focuses on encouraging the capacity to lead processes of community development by strengthening values that are not included in the stages of economic-financial growth, but that they get great relevance in situations of crisis.
"Despierta, remedio, cuenta ..." : adivinos y médicos del Ande / Mario Polia Meconi. Fondo Editorial de la Pontificia Universidad Católica, Lima, 1996
óscar Sánchez Benavides
Anthropologica , 1997,
Abstract: La rese a no presenta resumen.
Producción biotecnológica de alcohol carburante I: obtención a partir de diferentes materias primas.
Sánchez,óscar Julián; Cardona,Carlos Ariel;
Interciencia , 2005,
Abstract: summary the present work deals with the biotechnological production of fuel ethanol. it includes the analysis of the need for utilizing oxygenating additives for gasoline, fuel ethanol as oxygenating agent, diverse methods for bioethanol production from different feedstocks, and new trends for improving its production processes.
Producción biotecnológica de alcohol carburante II: integración de procesos.
Sánchez,óscar Julián; Cardona,Carlos Ariel;
Interciencia , 2005,
Abstract: in this work, the main methods for separation of ethanol-water mixtures are presented. environmental issues of bioethanol production are discussed. major trends for integration of fuel ethanol production process are analyzed, emphasizing the importance of the intensification for reaction-reaction, reaction-separation and separation-separation processes.
Evolución temporal en el conocimiento y el posicionamiento de los pacientes con enfermedades crónicas respecto al testamento vital
Antolín,Albert; Sánchez,Miquel; Miró,òscar;
Gaceta Sanitaria , 2011, DOI: 10.1590/S0213-91112011000500012
Abstract: objective: to describe patients' degree of knowledge about their diseases and advance directives, as well as their willingness to write these documents, among patients with chronic diseases seen in the emergency department. methods: we performed a prospective, comparative, cross-sectional study, without intervention and with consecutive patient inclusion in two periods (2003 and 2008). demographic and clinical data were recorded. an anonymous interview about patients' knowledge and opinions about their illness and their awareness of advance directives was performed. previous awareness of advance directives and the predisposition to write these documents were taken as dependent variables, and factors associated with these variables were analyzed. results: in both periods, 381 patients with similar characteristics were included (191 in 2003 and 190 in 2008). patients showed greater knowledge of their disease (74% vs 55%, p<0,001), a greater predisposition to take part in medical decisions (62% vs 42%, p<0,001), and higher participation in such decisions (48% vs 35%, p=0.01) in 2008 than in 2003. however, awareness of advance directives was slightly lower (18% vs 23%, p=ns), and willingness to write these documents was unchanged (50% vs 50%, p=ns). awareness of advance directives was associated with age less than 75 years and having completed secondary school. the predisposition to write advance directives was associated with previous awareness of these documents, considering oneself to be well informed, and wanting greater participation in medical decisions. conclusions: patients with chronic diseases showed greater understanding of their disease in the second period but awareness of advance directives and willingness to write these documents remained low. information on these issues should be improved as an essential part of the physician-patient relationship.
El Optimismo como Factor Protector de la Depresión Infantil y Adolescente
Sánchez Hernández,óscar; Méndez Carrillo,Francisco Xavier;
Clínica y Salud , 2009,
Abstract: this paper shows that an optimistic explanatory style consisting of taking positive situations as permanent and global attributions and negative situations as temporary and specific attributions is related significantly to lower depressive symptoms. implications of these results are discussed in the light of the reformulated model of learned helplessness (abramson, seligman y teasdale, 1978) and the hopelessness theory (abramson, metalsky and alloy, 1989). the paper also suggests taking into account new constructs that can be influential, such as explanatory flexibility, self-perceived control over stressful situations and the importance given to them. girls show a more optimistic explanatory style in preadolescence and participants older than 10 score higher in depression.
Evaluación de la labilidad afectiva como síntoma del síndrome maniaco
Sánchez,Ricardo; Rangel,óscar; Jaramillo,Luis Eduardo;
Revista Colombiana de Psiquiatría , 2010,
Abstract: introduction: mood lability is not considered a clinical symptom in diagnostic systems such as the dsm-iv or the icd-10. however, some studies have described the presence of this symptom in patients with affective disorders. objective: to evaluate mood lability as a representative symptom of the manic syndrome. methods: an evaluation system for measuring mood lability has been developed and included in the emun scale. a total of 202 patients with manic, hypomanic, or mixed episode were assessed. the performance of the symptoms was evaluated using factorial multivariate methods and rasch analysis. results: mood lability appears to be a good marker for manic, hypomanic, or mixed episode. mania should be re-conceptualized as an activation syndrome instead of an affective syndrome. depressive symptoms are clinical components of the syndrome. the findings of this study suggest that complementary criteria may be useful in diagnosing manic-depressive disorders.
Estudio de la estructura latente del síndrome maníaco mediante técnicas de escalamiento multidimensional
Rangel Urrea,óscar René; Sánchez Pedraza,Ricardo;
Revista Colombiana de Psiquiatría , 2010,
Abstract: introduction and objective: to date, some reports about dimensions of mania suggest that the importance of affective symptoms is controversial. the objective of this study was to investigate the latent structure of the manic syndrome by using classical methods of factor analysis for ordinal variables and multidimensional scaling. method: 404 consecutively admitted patients with dsm-iv criteria for bipolar disorder, manic, hypomanic or mixed were analyzed using the emun scale. factor analysis for ordinal variables and multidimendional scaling were carried out. results: factor analysis evidenced four clinically interpretable factors (activation, cognitive, affective, depression) with activation being the most important domain. multidimensional scaling confirmed activation as an identifiable factor that is a central constituent of the syndrome, and affective symptoms as a secondary component. hipersexuality seems to be an isolated symptom, probably reflecting other latent dimensions. conclusion: mania is the expression of four dimensions. the core domain of the syndrome is activation. although depressive symptoms are not the main component, its evaluation during manic, hypo- manic or mixed states is essential.
Consumption of an adult Puma yagouaroundi (Felidae) by the snake Boa constrictor (Boidae) in Central Mexico
Monroy-Vilchis, Octavio;Sánchez, óscar;Urios, Vicente;
Revista mexicana de biodiversidad , 2011,
Abstract: few felids have been recorded as being preyed upon by the boa constrictor snake (boa constrictor). documentation of predation on felids by reptiles is scarce, and natural predators of the adult jaguarundi (puma yagouaroundi) are poorly known. here, we report for the first time an adult male jaguarundi being eaten by the snake boa constrictor (of 273 cm snout-to-vent length) at the sierra nanchititla natural reserve, estado de méxico.
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