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Search Results: 1 - 10 of 464412 matches for " Jairo A.;Quintero "
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Costos de Transacción y Formas de Gobernación de los Servicios de Consulta en Colombia
TORRES,SERGIO; GARCíA,RAFAEL GUILLERMO; QUINTERO,JOHN JAIRO;
Cuadernos de economía , 2007, DOI: 10.4067/S0717-68212007000200005
Abstract: this paper evaluates the extent to which the establishment of the different governance forms linking hospitals to insurance companies in bogotá is carried out taking into account transaction costs reduction criteria. an empirical test is applied, using the transaction dimensions proposed by williamson (1985). hypotheses are tested by a combination of the acceptability analysis stochastic method and multiple discriminant analysis. we conclude that both hospitals and insurance companies seek to reduce production costs, while transaction costs are not relevant to the decision
Costos de Transacción y Formas de Gobernación de los Servicios de Consulta en Colombia
SERGIO TORRES,RAFAEL GUILLERMO GARCíA,JOHN JAIRO QUINTERO
Cuadernos de Economía , 2007,
Abstract: Este trabajo examina en qué medida los hospitales de tercer nivel de complejidad en Bogotá seleccionan diferentes formas de gobernación de servicios de salud con empresas promotoras de salud -EPS-, respondiendo a criterios de reducción de costos de transacción. Se usan las dimensiones de la transacción propuestas por Williamson (1985) para realizar la prueba empírica. Las hipótesis se contrastan mediante el método estocástico de análisis de aceptabilidad y análisis discriminante múltiple. Se concluye que tanto las EPS como los hospitales buscan la reducción de costos de producción, en tanto que los costos de transacción no son relevantes en la decisión This paper evaluates the extent to which the establishment of the different governance forms linking hospitals to insurance companies in Bogotá is carried out taking into account transaction costs reduction criteria. An empirical test is applied, using the transaction dimensions proposed by Williamson (1985). Hypotheses are tested by a combination of the acceptability analysis stochastic method and multiple discriminant analysis. We conclude that both hospitals and insurance companies seek to reduce production costs, while transaction costs are not relevant to the decision
Niveles de la presión arterial y de estrés psicosocial en estudiantes de la Facultad de Salud, Universidad del Valle. Cali, Colombia, 2003-2004
Campo,José Ernesto; Reyes,John Jairo; Ortiz,Carolina; Quintero,Leonardo; Herrera,Julián A;
Colombia Médica , 2006,
Abstract: objective: to evaluate the levels of family stress, social stress and the blood pressure levels in young people and the possible correlation. materials and methods: a descriptive study was performed recruiting healthy students of health sciences in the university of valle in cali, colombia during 2002-2003. the psychosocial stress inventory included evaluation of the family stress and the evaluation of social stress. the blood pressure was evaluated by physicians using standardized technique with calibrated manual sphygmomanometers. results: 185 students were recruited with an average age of 21.2±2.6 years old, 178 (96%) were singles, 100 (54%) were women, 173 (93.5%) were of mixed ethnic background, 154 (83.2%) were from middle socioeconomic level (level 3-4). the family dysfunction was observed in 131 (70.8%) students, 66 (35.6%) had high cumulative social changes. the average blood pressure level in all students was normal (106.4/69.7) with high blood pressure levels in males than in females (p<0.001) associated with the body mass index (p<0.001) and the black race ( p<0.02). family dysfunction was not associated with changes in blood pressure (p=0.80). social stress was not associated with blood pressure levels (p=0.98). conclusion: in young people psychosocial stress was high but did not affect blood pressure levels probably due to compensatory physiologic action of vascular endothelium.
Concepto de soledad y percepción que de su momento actual tiene el adulto mayor en el municipio de Bello, Colombia, 2007
Cardona J,Jairo L; Villamil G,María M; Henao V,Eucaris; Quintero E,ángela;
Revista Facultad Nacional de Salud Pública , 2009,
Abstract: objective: to explore the concept of loneliness and perception of the moment experienced by adults 55 and older in the municipality of bello (antioquia) in 2007. methodology: a cross-sectional study. two were open-ended questions were coded and were crossed with socio-demographic variables. the convenience sample was comprised of 180 adults of both sexes, residents in the municipality of bello (antioquia) and were not institutionalized. results: the predominant concepts of loneliness were "being alone" (42.7%), "feeling lonely" (23%), followed by "horrible" (13.5%) and "isolated" (7.5%), and other concepts (12.5%) emphasized that the concept of loneliness is associated with socio-economic stratum and educational level attained. conclusions: the survey population is predominant in a more objective (alone) than subjective (feeling alone) of loneliness. the way to perceive the current stage of life has a close relationship with the concept of loneliness, those who perceive it in a positive way choose preferably objectives concepts of loneliness. despite the major changes experienced by older adults and the crises that must pass through this life cycle, it is generally perceived that they feel comfortable with the moment of their existence.
FORMAS DE CONTRATACIóN DE LOS SERVICIOS DE URGENCIAS: UNA APROXIMACIóN DESDE LA ECONOMíA DE LOS COSTOS DE TRANSACCIóN
Torres Valdivieso,Sergio; García Cáceres,Rafael Guillermo; Jairo Quintero,John;
Revista de Economía Institucional , 2005,
Abstract: this paper evaluates how third level of attention hospitals in bogotá choose between different contractual arrangements with health maintenance organizations (hmo), using criteria which seek to reduce transaction costs. williamson’s theoretical framework is used as a basis for an empirical test. likert scales are used to operationalize the independent variables and the stochastic multicriteria acceptability analysis (smaa) and multiple discriminant analysis (mda) for the test of the hypothesis. results indicate that both hmo’s and third level of attention hospitals in bogotá seek to reduce production rather than transactions costs.
Formas de contratación de los servicios de urgencias: una aproximación desde la economía de los costos de transacción
García Cáceres, Rafael Guillermo,Quintero , Jonh Jairo,Torres Valdivieso, Sergio
Revista de Economía Institucional , 2005,
Abstract: Con ayuda de la teoría de los costos de transacción, este estudio evalúa la manera como los hospitales de tercer nivel de Bogotá seleccionan las formas de contratación con las empresas promotoras de salud. Para la prueba empírica se usan los aportes teóricos de Williamson. Las variables independientes se especifican mediante escalas Likert y las hipótesis se prueban con el método estocástico de análisis de aceptabilidad (SMAA) y el análisis discriminante múltiple (ADM). El resultado principal es que las empresas promotoras de salud y los hospitales de tercer nivel en Bogotá buscan reducir los costos de producción mientras que los costos de transacción no son relevantes en la decisión.
Concept of loneliness, and perception of their current life moment, among elderly adults from Bello, Colombia, 2007
Jairo L. Cardona J,María M. Villamil G,Eucaris Henao V,ángela Quintero E
Revista Facultad Nacional de Salud Pública , 2009,
Abstract: Objective: To explore the concept of loneliness and perception of the moment experienced by adults 55 and older in the municipality of Bello (Antioquia) in 2007. Methodology: A cross-sectional study. Two were open-ended questions were coded and were crossed with socio-demographic variables. The convenience sample was comprised of 180 adults of both sexes, residents in the municipality of Bello (Antioquia) and were not institutionalized. Results: The predominant concepts of loneliness were “being alone” (42.7%), “feeling lonely” (23%), followed by “horrible” (13.5%) and “isolated” (7.5%), and other concepts (12.5%) emphasized that the concept of loneliness is associated with socio-economic stratum and educational level attained. Conclusions: The survey population is predominant in a more objective (alone) than subjective (feeling alone) of loneliness. The way to perceive the current stage of life has a close relationship with the concept of loneliness, those who perceive it in a positive way choose preferably objectives concepts of loneliness. Despite the major changes experienced by older adults and the crises that must pass through this life cycle, it is generally perceived that they feel comfortable with the moment of their existence.
Validación de la escala ESTE para medir la soledad de la población adulta
Cardona Jiménez,Jairo León; Villamil Gallego,María Mercedes; Henao Villa,Eucaris; Quintero Echeverri,ángela;
Investigación y Educación en Enfermería , 2010,
Abstract: objective. to validate the loneliness measurement scale este in adult population who assist to third age groups in bello (colombia). methodology. cross sectional descriptive study. internal consistency, reproducibility and behavior were assessed using demographic variables. the sample consisted of 180 adults aged 55 or over belonging to 15 senior groups selected randomly from the 100 registered in bello at the time of the study execution. results. the factorial analysis of the scales? four main components explained 55.9% of the variance. factors that explain greater variance are: adaptation crisis (17.2%), marriage loneliness (14.0%), and social loneliness (13.9%). family loneliness was the factor that less explained (10.9%). cronbach alfa scale reliability of 0.9, being in each of the factors above 0.7. the test-retest reproducibility measured by the sperman correlation coefficient was 0.88. conclusion. este scale validation indicates that it can be used as an adult loneliness measurement instrument in colombia?s adult population.
Validación de la escala ESTE para medir la soledad de la población adulta Valida o da escala ESTE para medir a solid o da popula o adulta ESTE scale validation to measure loneliness in adult population
Jairo León Cardona Jiménez,María Mercedes Villamil Gallego,Eucaris Henao Villa,ángela Quintero Echeverri
Investigación y Educación en Enfermería , 2010,
Abstract: Objetivo. Validar la escala de medición de la soledad ESTE en población adulta que asiste a los grupos de la tercera edad del municipio de Bello (Colombia). Metodología. Estudio descriptivo de corte transversal. Se evaluó su consistencia interna, reproducibilidad y comportamiento con variables sociodemográficas. La muestra estuvo conformada por 180 adultos de 55 o más a os pertenecientes a 15 grupos de la tercera edad elegidos aleatoriamente de los 100 registrados en Bello a la fecha de realización del estudio. Resultados. El análisis factorial de los cuatro componentes principales de la escala explican el 55.9% de la varianza. Los factores que más varianza explican son: crisis de adaptación (17.2%), soledad conyugal (14.0%) y soledad social (13,9%). La soledad familiar fue el factor que menos explicó (10.9%). La confiabilidad de la escala Alfa de Cronbach de 0.9, siendo en cada uno de los factores superior a 0.7. La reproducibilidad test- retest medido por el coeficiente de correlación de Spearman fue 0.88. Conclusión. La validación de la escala ESTE indica que se puede utilizar como instrumento de medición de la soledad para la población adulta colombiana. Objetivo. Validar a escala de medi o da solid o ESTE em popula o adulta que assiste aos grupos da terceira idade do município de Bello (Col mbia). Metodologia. Estudo descritivo de corte transversal. Avaliou-se sua consistência interna, reprodutibilidade e comportamento com variáveis sócio-demográficas. A mostra esteve conformadas por 180 adultos de 55 ou mais anos pertencentes a 15 grupos da terceira idade eleitos aleatoriamente dos 100 registrados em Belo à data de realiza o do estudo. Resultados. A análise fatorial dos quatro componentes principais da escala explica o 55.9% da variancia. Os fatores que mais variancia explicam s o: crise de adapta o (17.2%), solid o conjugal (14.0%) e solid o social (13,9%). A solid o familiar foi o fator que menos explicou (10.9%). A confian a da escala Alfa de Cronbach de 0.9, sendo em cada um dos fatores superior a 0.7. A reprodutibilidade teste-reteste medido pelo coeficiente de correla o de Spearman foi 0.88. Conclus o. A valida o da escala ESTE indica que se pode utilizar como instrumento de medi o da solid o para a popula o adulta colombiana. Objective. To validate the loneliness measurement scale ESTE in adult population who assist to third age groups in Bello (Colombia). Methodology. Cross sectional descriptive study. Internal consistency, reproducibility and behavior were assessed using demographic variables. The sample consisted of 180 adults ag
Electromagnetic Field Released in Collision-Impact Events Generate in the Matrix Interface Fractal Scalable Invariant Geometric Triangular Chiral Hexagonal Structures  [PDF]
Jairo A. Diaz
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.33022
Abstract:

In biology, cancer is the most beautiful natural model of a chaotic system, which under uncontrolled proliferations, generates extreme disorder that finally causes intercellular collisions. The authors have described and documented fractal self-assembly of geometric triangular chiral hexagonal crystal-like complex organizations (GTCHC) and interface comet tail effect patterns in cancer processes. According to this novel observation cancer incorporates a real visualization world with a great surprising finding in biology, physics, and geology. This visualization platform literally allows us to see what would otherwise remain completely invisible. From theory to practice this irreducible geometric matrix allowed us to identify in geology, real measurable green infrared-electromagnetic stripe line in interface with hexagonal geomorphic pattern, triangular chiral pyramidal rock structures, geology well defined mirror images, template platform to bio signature characterization of ancestral primitive polar head-tail organization, embryoid and human-like shape pattern embedded as giant fossils in rocks that have never been seen before. Electromagnetic field released in collision-impact events generate in the matrix interphase fractal scalable invariant order of geometric triangular chiral hexagonal structures. The laws of biology and geology can finally be redirected to the laws of physics; specifically magnetic fields create a new kind of classification based on these fractal structural similarities of the relationship. Further interdisciplinary collaboration must be carried out to study these geometric self-assembly geological structures, ancient sediments and rocks that could provide insights into antecedents of life.

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