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Search Results: 1 - 10 of 12549 matches for " Patricio; Narváez "
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Percepción de rendimiento académico en estudiantes de Odontología
Oliva Mella,Patricio; Narváez,Carmen Gloria;
Educaci?3n M??dica Superior , 2013,
Abstract: this research work focused on the perception of the academic achievement of the undergraduate students of dentistry in universidad del desarrollo, concepcion, chile, by making a comparison with several variables linked to this concept in order to set an overall vision through the statistical associations among them. this is a cross-sectional, comparative and quantitative research using an expert-validated survey and pilotage from which a spss program-analyzed database was derived. data were distributed parametrically; the kolmogorov-smirnow test and the t-student test were applied. the results proved that the perceptions of academic achievement are linked with variables that are in turn associated to the student and to exogenous variables. it was concluded that the perception of the academic achievement is a social-educational construction made up of many interacting variables that have a bearing on the result of a formal qualification.
Percepción de rendimiento académico en estudiantes de Odontología Perception of academic achievement in Odontology students
Patricio Oliva Mella,Carmen Gloria Narváez
Educaci?3n M??dica Superior , 2013,
Abstract: La investigación se centra en la percepción del rendimiento académico de estudiantes de pregrado de Odontología de la Universidad del Desarrollo, Concepción, Chile, contrastándola con distintas variables vinculadas a este concepto, con el objetivo de establecer una visión completa por medio de las asociaciones estadísticas existentes entre ellas. La investigación es de tipo cuantitativo, comparativo, transversal, se utilizó una encuesta validada por expertos y mediante un pilotaje, de la cual derivó una base de datos analizada mediante el programa SPSS . Los datos tienen una distribución paramétrica, utilizando el test de Kolmogorov-Smirnov, posteriormente se aplica la prueba de t-Student. Los resultados demuestran que la percepción del redimiendo académico se vincula con variables que se asocian al propio estudiante y a variables que son consideradas exógenas por ellos. Se concluye que la percepción del rendimiento es una construcción socio-educacional constituida por múltiples variables que interaccionan y redundan en un resultado de calificación formal. This research work focused on the perception of the academic achievement of the undergraduate students of dentistry in Universidad del Desarrollo, Concepcion, Chile, by making a comparison with several variables linked to this concept in order to set an overall vision through the statistical associations among them. This is a cross-sectional, comparative and quantitative research using an expert-validated survey and pilotage from which a SPSS program-analyzed database was derived. Data were distributed parametrically; the Kolmogorov-Smirnow test and the t-Student test were applied. The results proved that the perceptions of academic achievement are linked with variables that are in turn associated to the student and to exogenous variables. It was concluded that the perception of the academic achievement is a social-educational construction made up of many interacting variables that have a bearing on the result of a formal qualification.
CICLO CIENCIA-PRODUCCIóN Y SU RELACIóN CON EL POTENCIAL CIENTíFICO EN LATINOAMéRICA Marco teórico-conceptual para un sistema de investigaciones científicas
Victor Patricio Díaz Narváez,Aracelis Calzadilla Nu?ez
Investigación y Desarrollo , 2001,
Abstract: El concepto de Potencial Científico incluye la investigación fundamental, la aplicada y el desarrollo. Sin embargo, no puede ser examinado sólo desde el ángulo de los indicadores cuantitativos, sino que es fundamental examinarlo también desde el punto de vista cualitativo. Uno de los factores más importantes que se debe analizar es la cadena ciencia - producción. En su análisis, se tratan temas como la interacción ciencia - técnica - producción y la influencia que la tecnología ejerce sobre las estructuras sociales, sobre su cultura y sus concepciones ideológicas. Sin embargo, se hace claridad sobre la no identidad del progreso tecnológico y el progreso social, siendo el primero una condición necesaria, pero no suficiente, para que haya progreso social. En su segunda parte, el artículo incluye una discusión acerca del potencial científico y el rendimiento de la ciencia, y finaliza con una serie de inquietudes sobre Latinoamérica y los conceptos estudiados.
Oral Health Status in Adult Population in Chile (Decayed, Missing, Filled and Permanent Tooth): Clinical Observation at National Level  [PDF]
Verónica Vargas-Sanhueza, Claudia Krause Mu?oz, Víctor Patricio Díaz-Narváez, Juan Fonseca Molina
Health (Health) , 2015, DOI: 10.4236/health.2015.712191
Abstract: Objectives: The aim of this study was to establish the differences in the oral health status of adult population between women and men by the clinical status of the permanent first molar. Methods: The data were obtained in a non-random sample of 132,174 patients from a large cohort who were under dental treatment nationwide in Chile during 2011. Results: The results show a greater frequency of “filled and not decayed” (45.6%), “decayed” (18.8%) and followed by “missing by decay” (15.4%). Moreover, an association is established between the “filled and decayed” condition to the female gender and the condition “decayed” and “missing by decay” to the male gender (Significance level α ≤ 0.05). Conclusions: This study concluded that there was a dependent association between gender and the oral health status of permanent first molars in adult patients.
La hipótesis y la investigación científica en las ciencias médicas y biologicas
Díaz Narváez,Víctor Patricio; Calzadilla Nú?ez,Aracelis;
Revista Salud Uninorte , 2009,
Abstract: a study was done about the negative impact that could be between methodological and epistemological facts, when scientific and empirical hipótesis are overlapped or substituted by statistical hypothesis. such overlaps or substitution tend to confuse to researchers and pre and post grade student related with the potencial cognitive of hypothesis in both, general and specific way. moreover, the sources that may result this kind of mistakes in scientific research process are discused.
La hipótesis y la investigación científica en las ciencias médicas y biologicas
Víctor Patricio Díaz Narváez,Aracelis Calzadilla Nú?ez
Revista Salud Uninorte , 2009,
Abstract: Se realizó un estudio acerca del impacto negativo que puede existir sobre los aspectos metodológicos y epistemológicos cuando las hipótesis científicas y empíricas se les superponen o son sustituidas por las hipótesis estadísticas. Tales superposiciones o sustituciones tienden a confundir a investigadores y estudiantes de pregrado y postgrado en relación con el potencial cognoscitivo de la hipótesis en general y en particular y se discuten las fuentes que pueden producir este tipo de errores en el proceso de la investigación científica.
Empathy Levels of Dentistry Students in Peru and Argentina  [PDF]
Víctor Patricio Díaz-Narváez, Fredy Gutierrez-Ventura, Teresa Varela de Villalba, Mercedes Salcedo-Rioja, Aracelis Calzadilla-Nú?ez, Muna Hamdan-Rodríguez, Marcos Cervantes
Health (Health) , 2015, DOI: 10.4236/health.2015.710141
Abstract: Objectives: To compare the empathy of students in two faculties of Dentistry in Peru and Argentina, three factors were considered: universities, academic year and gender. Material and Methods: Empathy matrices in Dentistry students were measured using the Jefferson Scale of Empathy, culturally validated in Peru and Argentina. Empathy data were compared among and within the faculties tested using a three-factor analysis of variance (model III), a Duncan test, and a discriminant analysis. The level of significance used was less than 0.05. Results: We found that differences existed between the students tested. The comparison between the levels of empathy in the studied factors and the presence of unexplained variance showed that empathy was able to differentiate populations. Conclusions: The results indicate variability in the empathy values associated with the factors studied. The discriminant test confirms the differences between faculties revealed by the data matrix resulting from the JSE. These differences are possibly due to the effect of educational and social factors.
Levels of Empathy among Dental Students in Five Chilean Universities  [PDF]
Víctor Patricio Díaz-Narváez, Aracelis Calzadilla Nú?ez, Doris Carrasco, Alex Bustos, Alejandro Zamorano, Henry Silva, Elizabeth López Tagle, Joyce Hubermann, Robert Utsman, Alejandro Reyes Reyes
Health (Health) , 2016, DOI: 10.4236/health.2016.81005
Abstract: Aim: To compare empathic levels among dental students of five Dental Faculties in Chile. Material and Methods: Empathic orientation of dental students was measured using the Jefferson Scale of Physician Empathy, the Spanish version for students (S version), validated in Chile and culturally adapted to dental students. The data were compared using analysis of variance trifactorial (model III) and by a discriminant analysis. Results: It was found that differences exist between universities empathic orientation, courses, and gender. Conclusions: The results showed a great variability of empathetic guidance values on the factors studied. Discriminant test confirm the similarity and differences found among faculties from the data matrix provided by the scale used. It is not possible in this investigation to explain the variability found.
PATRONES GENéTICOS DE LOS CULTIVARES DE VIDES DE VINIFICACIóN MáS COMúNMENTE USADOS EN CHILE BASADOS EN MARCADORES DE MICROSATéLITES
Narváez H.,Claudio; Castro P.,M. Herminia; Valenzuela B.,Jorge; Hinrichsen R.,Patricio;
Agricultura Técnica , 2001, DOI: 10.4067/S0365-28072001000300001
Abstract: the chilean wine industry has experienced a substantial modification during recent decades, favoring the planting of the so-called fine cultivars over the traditional ones, such as the cultivar país. on the other hand, the globalization of world markets has underlined the necessity of the certification of the genetic identity and purity of these cultivars, which until recently was only carried out by ampelographic methods. the direct analysis of dna, including genomic repetitive sequences such as mini- and microsatellites, has permitted the development of new, powerful analytical methods, used as molecular markers for different purposes. in this paper, the genetic differentiation of some of the most commonly grown wine grape cultivars in chile is presented. for this purpose, a set of 12 microsatellite markers were used to characterize 20 cultivars of red and white wine, producing a unique pattern of alleles or fingerprinting for each one. the expected heterozygosity (he) for each marker was quite high and diverse, ranging from 0.27 to 0.87 (average 0.70), as diverse as the number of alleles identified with each marker, from 4 for vvmd-25, vvmd-34 and vvs-29 to 10 for vvmd-28. the number of genotypes identified with each marker was from moderate, 4 in vvmd-34, to as high as 15 with vvmd-28. the combination of a small fraction of these markers (for example, vvmd-5 plus vvmd-28) allowed a complete identification of the cultivars. considering the foregoing, a combination of ssr markers is proposed to be used in genetic certification of wine grapes.
COMPARACIóN DE RAPD Y AFLP COMO MéTODOS DE IDENTIFICACIóN GENéTICA DE VID BASADOS EN EL ESTUDIO DE FRAGMENTOS GENóMICOS ANóNIMOS
Narváez R.,Claudio; Valenzuela B.,Jorge; Mu?oz Sch.,Carlos; Hinrichsen R.,Patricio;
Agricultura Técnica , 2000, DOI: 10.4067/S0365-28072000000400002
Abstract: until recently grape cultivars were identified based entirely on ampelographic criteria. currently a number of molecular techniques based on pcr can be applied for exhaustive genetic analysis on plants. these methods proceed through the direct analysis of dna, in this way avoiding the interference due to environmental interactions. in this paper the application of rapd and aflp for the analysis of genetic diversity in a group of more than 50 grape cultivars is presented. using 18 rapd primers, 103 information bands were identified, corresponding to 29.9% of polymorphism. in comparison, using only four aflp primers produced 86 information bands, with a very similar percentage of polymorphism (29.6%). both methodologies exhibited an adequate degree of reproducibility, evaluated on a collection of 48 cabernet sauvignon clones. the dendrograms based on these data sets graphically depicted the ability of both methods to differentiate all the cultivars studied. in the case of cabernet sauvignon clones, aflp permitted the identification of a number of differences that could be related to morphological differences detected among these clones, such as cluster length. the comparison of both methods, principally related to their ability to differentiate cultivars and clones, suggests that aflp is the more adequate method for both purposes. nevertheless, both methods could be implemented, given that under controlled conditions appropriate levels of polymorphism and reproducibility are displayed
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