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79.120  Articles
1 of 7.912 pages  |  10  records  |  more records»
In this paper, we have considered the problem of three-stage sample surveys. The problem of a three stage multivariate stratified sample survey has been formulated as a non-linear stochastic programming problem by considering survey cost and the variances... see more

Desarrollo de habilidades investigativas en el proceso formativo de los estudiantes de Medicina / Development of research skills in the training process of medical studentsDesarrollo de habilidades investigativas en el proceso formativo de los estudiantes de Medicina / Development of research skills in the training process of medical studentsde las Ciencias de la Salud, en especial de los médicos que egresan con la responsabilidad de asumir el trabajo en la Atención Primaria de Salud. Dada las insuficiencias de los estudiantes de medicina en el componente investigativo del proceso formativo, lo que incide en los modos de actuación de los graduados, se realizó una  investigación descriptiva y transversal. El objetivo consiste en  determinar cómo se comporta el  desarrollo de habilidades investigativas en el proceso formativo de los estudiantes de medicina durante el período enero  -  junio del año 2009.  El universo estuvo constituido por todos los estudiantes de medicina de la Universidad de Ciencias Médicas de Pinar del Río. Se seleccionó una muestra de forma aleatoria, estratificada y representativa, que incluyó a los estudiantes de todos los años de la carrera, profesores y directivos de la carrera. Se realizó una revisión bibliográfica, y  el análisis documental de los planes de estudio, utilizando como métodos empíricos: la encuesta, la entrevista y la opinión de expertos. El diagnóstico incluyó la aplicación de una encuesta a los estudiantes de la carrera de medicina, y entrevistas semiestructuradas a los profesores de la carrera. Se concluye que la mayoría de los estudiantes consideran los temas sobre metodología de la investigación recibida como insuficiente para el desarrollo de habilidades investigativas, los temas que investigan responden a intereses personales y los orientados por el tutor. La actividad científica estudiantil  constituye la principal vía identificada para el desarrollo de habilidades investigativas. Los estudiantes consideran muy necesario la disciplina  metodología de la investigación en su plan de estudio.Palabras clave: MEDICINA,  METODOLOGÍA, ESTUDIANTE.ABSTRACTThe necessity of increasing the quality of preparation for the research process of graduates in Medical Sciences is a matter of discussion in last academic courses, particularly medical personnel having the responsibility for taking on the work of Primary Health Care. In view of the insufficiencies of medical students on the research component during the training process, which bears on the ways the graduates perform, a descriptive and cross-sectional study was conducted. The objective was to determine the behavior of research skills in the training process of medical students during January-June 2009. The universe was comprised of all the students enroll at Medical College in Pinar del Rio. The sample was chosen at random, stratified and representative, that included the medical students enroll in all the academic years of medical studies, teaching staff and directors. A literature review and a documentary analysis of the syllabuses were carried out using empirical methods: survey, interview and the opinion of the experts. The instruments applied included a survey to the medical students and semi-structured interviews to professors. Concluding that the majority of the students consider the topics about methodology of research insufficient to develop skills, these topics respond to personal interest advised by the tutor. Student scientific activity represents the main identified way to develop research skills. Students consider the discipline of Methodology of Research very necessary in the syllabus.Key words: MEDICINE, METHODOLOGY, STUDENTS.

ABSTRACTThe necessity of increasing the quality of preparation for the research process of graduates in Medical Sciences is a matter of discussion in last academic courses, particularly medical personnel having the responsibility for taking on the work of... see more

There are several reasons why robust regression techniques are useful tools in sampling design. First of all, when stratified samples are considered, one needs to deal with three main issues: the sample size, the strata bounds determination and the sample... see more

We modified the standard, stratified random block design used typically in aerial surveys of moose (Alces alces). We laid a grid of approximately 9 km2 cells over our study area, and GIS was then used to allocate polygons into one of 2 strata within each ... see more

Tujuan penelitian untuk menganalisis prediksi quick count dengan pengambilan sampel, serta akurasi dan presisi pada Pilkada Jawa Tengah. Metode yang digunakan yaitu pemilihan masalah, merumuskan masalah, studi pustaka, pemecahan masalah, dan penarikan kes... see more

In this article, a combined general family of estimators is proposed for estimating finite population mean of a sensitive variable in stratified random sampling with non-sensitive auxiliary variable based on randomized response technique. Under stratified... see more

In stratified sampling design when the cost of measuring the units is not significant in each stratum, the estimation of population mean or total constructed from a selected sample according to Neyman allocation is advisable. In general the practical use ... see more

An exponential family of estimators, which use the information of two auxiliary variables in the stratified sampling, is proposed to estimate the population mean of the variable under study. The mean-squared error of the suggested family of estimators are... see more

BACKGROUND: The aim of this study was describing the sampling methods and sample size of the Isfahan Healthy Heart Program (IHHP) and its sub-studies in focus.METHODS: The IHHP was carried out between 2000 and 2007 in urban and rural areas in 3 districts,... see more

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