oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

匹配条件: “Gutiérrez” ,找到相关结果约6332条。
列表显示的所有文章,均可免费获取
第1页/共6332条
每页显示
On the Consistency of the First-Order-Approach to Principal-Agent Problems  [PDF]
óscar Gutiérrez
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.22028
Abstract: This paper revisits the principal-agent model with moral hazard when its solution is obtained invoking the first-order-approach. We show that the solution can be economically inconsistent even when “sufficient conditions” ensuring its validity ([1,2]) hold. To be more precise, we provide examples where is impossible to find Lagrange multipliers validating the approach. The correct solution to the problem provides a rationale for option-like contracts and minimum payments.
Impact Assessment of Tourism Construction in Cuba  [PDF]
Lourdes Ruiz Gutiérrez
Journal of Building Construction and Planning Research (JBCPR) , 2015, DOI: 10.4236/jbcpr.2015.31002
Abstract: This paper discusses a methodology for the environmental assessment of tourist facilities located in Cuban coastal zones in which the general aspects of the process are discussed, defined, and characterized, and examines the main processes that occur as a result of the negative impacts of construction activities. It establishes the theoretical conceptual framework underlying the research and includes a detailed analysis and processing of a sample of tourism projects located in coastal ecosystems. The methodology is complemented by results that include proposed strategic lines of action and a plan for managing negative environmental impacts throughout the life cycle of tourist facilities through prevention, correction and mitigation measures. It ends with conclusions and recommendations to guide tourism development toward environmental sustainability.
The Environmental Effects of Tourism Architecture on Island Ecosystem in Cayo Guillermo, Cuba  [PDF]
Lourdes Ruiz Gutiérrez
Journal of Environmental Protection (JEP) , 2015, DOI: 10.4236/jep.2015.69093
Abstract: The objective of this study is to determine the main adverse impacts that may be caused by tourism architecture upon island ecosystems consisting of small islands or islets and to propose an architectural and landscape design with a focus on the environmental sustainability of the same. A study of projects was undertaken in Cayo Guillermo, located to the north of Ciego de Avila in Cuba using methods of life-cycle assessment of buildings, matrix methods of the activities that caused severe environmental impact and statistical processing through multivariate analysis. Conclusions were reached on the need for designs that did not harm the ecosystems of islands with high ecological fragility. It has been determined that suitable construction intervention would decrease the negative impact and would allow the natural resources of these valuable ecosystems that are the basis for responsible sun and sand tourism to be preserved.
Developing Oral Skills through Communicative and Interactive Tasks
Gutiérrez Gutiérrez,Dorelly;
Profile Issues in Teachers` Professional Development , 2005,
Abstract: this article describes a research project carried out with a group of ninth grade students at the institución educativa distrital britalia, in bogotá. the starting point was a needs analysis which revealed the lack of practice regarding speaking skills. three interactive tasks, a free conversational activity, and basic oral defenses were designed and implemented. direct observation, videos and audiotapes provided evidence of the improvement of students’ oral communication. the changes in the pedagogical practice, in the role of the teacher, in the syllabus design and in learners’ attitudes towards their learning process were recorded as the main results of the action research project.
Farmacogenética: medicina personalizada
Gutiérrez Gutiérrez,Reinaldo;
Revista Cubana de Farmacia , 2004,
Abstract: pharmacogenetics is a science that allows to identify the genetic bases of the interindividual differences in the response to drugs. this review article uses a number of published examples of differences inherited in drug-metabolizing enzimes to illustrate the importance of inheritance in the determination of the efficiency and toxicity of drugs in human beings. although their development is incipient, there are already tests for the mollecular diagnosis by which the physicians and pharmacists may select the drugs and the dosing for each patient in an individual way. the development of pharmacogenetics provides at least one way to prescribe medicines without the usual empirism and to advance towards a more personalized therapy.
Farmacogenética: medicina personalizada Pharmacogenetics: personalized medicine
Reinaldo Gutiérrez Gutiérrez
Revista Cubana de Farmacia , 2004,
Abstract: La farmacogenética es la ciencia que permite identificar las bases genéticas de las diferencias interindividuales en la respuesta a drogas. Este artículo de revisión utiliza un número de ejemplos publicados de diferencias heredadas en enzimas metabolizadoras de drogas, para ilustrar la importancia de la herencia en la determinación de la eficacia y la toxicidad de medicamentos en humanos. Aunque tienen un desarrollo incipiente, ya existen pruebas para el diagnóstico molecular mediante las cuales médicos y farmacéuticos pueden seleccionar los fármacos y las dosis para cada paciente de forma individual. El desarrollo de la farmacogenética, provee de, al menos, una vía para hacer prescripciones médicas sin el empirismo corriente e ir hacia una terapia más personalizada. Pharmacogenetics is a science that allows to identify the genetic bases of the interindividual differences in the response to drugs. This review article uses a number of published examples of differences inherited in drug-metabolizing enzimes to illustrate the importance of inheritance in the determination of the efficiency and toxicity of drugs in human beings. Although their development is incipient, there are already tests for the mollecular diagnosis by which the physicians and pharmacists may select the drugs and the dosing for each patient in an individual way. The development of pharmacogenetics provides at least one way to prescribe medicines without the usual empirism and to advance towards a more personalized therapy.
Developing Oral Skills through Communicative and Interactive Tasks Desarrollo de las habilidades orales a través de tareas interactivas
Dorelly Gutiérrez Gutiérrez
Profile Issues in Teachers` Professional Development , 2005,
Abstract: This article describes a research project carried out with a group of ninth grade students at the Institución Educativa Distrital Britalia, in Bogotá. The starting point was a needs analysis which revealed the lack of practice regarding speaking skills. Three interactive tasks, a free conversational activity, and basic oral defenses were designed and implemented. Direct observation, videos and audiotapes provided evidence of the improvement of students’ oral communication. The changes in the pedagogical practice, in the role of the teacher, in the syllabus design and in learners’ attitudes towards their learning process were recorded as the main results of the action research project. Este artículo describe un proyecto de investigación desarrollado con un grupo de estudiantes de noveno grado en la Institución Educativa Distrital Britalia, en Bogotá. Se partió de un análisis de necesidades que reveló la ausencia de práctica en habilidades orales. Se dise aron e implementaron tres tareas interactivas, una actividad de conversación libre y sustentaciones orales básicas. La observación directa, los videos y audio casetes evidenciaron el mejoramiento de la comunicación oral de los estudiantes. Los cambios en la práctica pedagógica, en el papel del maestro, en el dise o del programa y en las actitudes de los estudiantes hacia su proceso de aprendizaje fueron los resultados principales del proyecto de investigación acción.
Developing Oral Skills through Communicative and Interactive Tasks
Gutiérrez Gutiérrez Dorelly
Profile Issues in Teachers` Professional Development , 2005,
Abstract: This article describes a research project carried out with a group of ninth grade students at the Institución Educativa Distrital Britalia, in Bogotá. The starting point was a needs analysis which revealed the lack of practice regarding speaking skills. Three interactive tasks, a free conversational activity, and basic oral defenses were designed and implemented. Direct observation, videos and audiotapes provided evidence of the improvement of students’ oral communication. The changes in the pedagogical practice, in the role of the teacher, in the syllabus design and in learners’ attitudes towards their learning process were recorded as the main results of the action research project. Key words: Oral communication, interactive tasks, task-based learning Este artículo describe un proyecto de investigación desarrollado con un grupo de estudiantes de noveno grado en la Institución Educativa Distrital Britalia, en Bogotá. Se partió de un análisis de necesidades que reveló la ausencia de práctica en habilidades orales. Se dise aron e implementaron tres tareas interactivas, una actividad de conversación libre y sustentaciones orales básicas. La observación directa, los videos y audio casetes evidenciaron el mejoramiento de la comunicación oral de los estudiantes. Los cambios en la práctica pedagógica, en el papel del maestro, en el dise o del programa y en las actitudes de los estudiantes hacia su proceso de aprendizaje fueron los resultados principales del proyecto de investigación acción. Palabras claves: Comunicación oral, tareas interactivas, aprendizaje basado en tareas
EL MAPA DE HéNON COMO FUNCION DE TIEMPO UNITARIA DE UN CAMPO VECTORIAL
ALEXáNDER GUTIéRREZ GUTIéRREZ
Scientia Et Technica , 2008,
Abstract: En este trabajo se presentaran condiciones bajo las cuales un difeomorfismo es función de tiempo unitario de un campo vectorial. En particular, se tratará el sistema dinámico conocido como mapa de Hénon. Se determinaran valores de los parámetros para los cuales el mapa de Hénon es función de tiempo unitario de un campo vectorial.
Diferencias de sexo en la práctica anestésica general.
William Gutiérrez,Sergio E. Gutiérrez
CIMEL. Ciencia e Investigación Médica Estudiantil Latinoamericana , 2009,
Abstract: El reconocimiento de las diferencias fisiológicas y morfológicas es de suma importancia en la práctica anestésica. Factores hormonales son fundamentales en la desigualdad entre ambos sexos. El ciclo menstrual de la mujer modifica los niveles hormonales de progestágenos y testosterona, teniendo un efecto considerable a nivel sistémico y local. Hechos como la depuración más rápida de algunos anestésicos IV por parte de la mujer hace que recobre la conciencia más rápido que el hombre, a pesar de ello la mujer sufre consecuencias postoperatorias más severas.
第1页/共6332条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.