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Search Results: 1 - 10 of 114910 matches for " Carlos José Ortiz-Lizcano "
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Correlation between the Childhood-Asthma Control Test and the Criterion for Clinical Asthma Control  [PDF]
Carlos José Ortiz-Lizcano, Jürg Niederbacher-Velásquez, Luis Alfonso Díaz-Martínez
Health (Health) , 2016, DOI: 10.4236/health.2016.87065
Abstract: Setting: Three pediatric pneumatologist offices in Bucaramanga, Colombia. Objective: To establish the concordance between medical criteria and the Childhood-Asthma Control Test (cACT). Design: Study of the assessment of diagnostic technology using transverse sampling. 127 asthma patients aged between 4 and 11 years and their parents filled before clinical evaluation made by a pediatric pneumologist. Patients were classified as controlled or not controlled. Criteria validity was established comparing this classification using Cohen’s kappa and performance indicators according to ROC analysis. Results: 78% of the patients were controlled; patients who are not controlled have a higher score in cACT (mean difference: 3.25 points). Concordance among cACT subscales is acceptable (ρ = 0.554). cACT’s sensitivity was 53.6%, specificity 78.8%, positive likelihood ratio (LR+) 2.53, and negative likelihood ratio (LR-) 0.59. The best cut-off point is 15, with 98% sensitivity, a specificity of 14.3%, LR+ in 1.14, and LR- in 0.14. Conclusions: cACT is a valid tool to determine asthma control in children without replacing medical criteria or other clinical tests. In populations with difficult access to high complexity services, it is useful to decide whether urgent referral to the specialist is necessary.
Estudios Gerenciales , 2007,
Abstract: this article focuses in identifying those structural factors that explain the loss of log-run economic dynamism in colombia and, in particular, in valle del cauca. the competitiveness of valle in relation to colombia and with the rest of the world is examined. the insistence in an exporting strategy as engine of economic development is challenged. it is identified that a large portion of population is excluded from the benefits of economic development. in order to build an inclusive model of development it is recommended to recover the path of industrialization, to invest in human capital (education of high quality, health, salubrity and nutrition), and to invest in infrastructure. the participation of the state in these social investments is necessary to diminish inequality and increase economic growth.
Ortiz,Carlos Humberto; Uribe,José Ignacio;
Cuadernos de Economía , 2006,
Abstract: this article presents a general economic equilibrium model that generates labor segmentation between two productive sectors: manufacturing industry and services. the model is consistent with the structuralist hypothesis according to which insufficient economic diversification in an open economy context limits the generation of high quality jobs. thus workers, whether skilled or unskilled, who are not contracted by the modern sector end up in the informal sector. the informal sector under conditions of an open economy and scarce productive diversification is characterized by low productivity, low salaries, and anticyclical behavior.
Apertura, estructura económica e informalidad: un modelo teórico
Ortiz Carlos H.,Uribe José I.
Cuadernos de Economía , 2006,
Abstract: En este artículo se expone un modelo de equilibrio económico general que genera segmentación laboral entre dos sectores productivos: el industrial manufacturero y el de servicios. El modelo es consistente con la hipótesis estructuralista según la cual una insuficiente diversificación económica en un contexto de economía abierta limita la generación de empleos de buena calidad. Así, al sector informal llegan los trabajadores, calificados o no, que no son contratados por el sector moderno. El sector informal en condiciones de economía abierta y escasa diversificación productiva se caracteriza por baja productividad, bajos salarios y comportamiento anticíclico.
Hacia un modelo de desarrollo incluyente para el Valle del Cauca
Carlos Humberto Ortiz,José Ignacio Uribe
Estudios Gerenciales , 2007,
Abstract: Este artículo se enfoca en la identi- ficación de aquellos factores estructurales que explican la pérdida de dinamismo económico de largo plazo en Colombia y, en particular, en el Valle del Cauca. Se examina la competitividad del Valle en relación con Colombia y con el resto del mundo. Se cuestiona la insistencia en una estrategia exportadora como dinamizadora del desarrollo económico. Se identifica que una gran parte de la población está excluida de los beneficios del desarrollo económico. Para construir un modelo de desarrollo que incluya a esta población se recomienda recuperar la senda de la industrialización, invertir en el capital humano (educación de alta calidad, salud, salubridad y nutrición), e invertir en infraestructura. La participación del Estado en estas inversiones sociales es necesaria para disminuir la desigualdad y aumentar el crecimiento económico.
Complejo esclerosis tuberosa
Medina-Malo,Carlos; Carre?o,Orlando; Vélez,Alberto; Lizcano,Luis Arturo; Ortiz,León Darío; Becerra,Henry; Cardona,Andrés Felipe;
Acta Neurológica Colombiana , 2012,
Abstract: introduction: the tuberous sclerosis complex (tsc) is the mainstay of malformation related to alterations in cellular growth and differentiation, with highly variable phenotypes, and systemic impact. objetives: to characterize and describe tsc to facilitate understanding of the neurodermatosis in the colombian population. materials and methods: information was obtained from searches performed in medline, biosis, and embase from 1966, 1994 and 1974, respectively, until march 1, 2011, using the ovid platform and multiple key terms. additional strategies were designed for other databases like lilacs, cinahl and best evidence using similar criteria. we also collected data from scientific societies related to the topic under study. results: the diagnostic criteria have not been modified instead molecular characterizations leads to a better understanding of the disease. the characterization of pathogenesis leads to the development of target therapies against those molecular alterations. mtor pathway explains phenotypic alterations in patients suffering of tsc. conclusion: the document of the colombian consensus for the neurodermathosis, wants to show an integral review of the knowledge about the development, diagnosis and treatment of tsc.
Ortiz,Carlos Humberto; Uribe,José Ignacio; Badillo,érika Raquel;
Ensayos sobre POLíTICA ECONóMICA , 2009,
Abstract: by using the continuous huosehold survey for the thirteen metropolitan areas of colombia, the segmentation hypothesis of the urban labour market is examined for each year of the 2001-2006 period. segmentation evidence is found between large firms and the remainder (interregional or scale segmentation), and between bogotá and the rest of metropolitan areas (interregional segmentation).
?Cómo deciden los individuos en el mercado laboral? Modelos y estimaciones para Colombia
Uribe,José Ignacio; Ortiz,Carlos Humberto; Correa,Juan Byron;
Lecturas de Economía , 2006,
Abstract: neoclassical models of choice are estimated for the colombian labor market. in a first approach, it is assumed that labor market choices are sequential: first, agents decide whether they participate or not; if the do, they choose to be employed or continue to search; if they decide to be employed, job quality is determined: formal or informal. subsequently, estimations are made as if labor decisions were simultaneous. there is evidence that shows that the latter seems to be more adequate for the colombian labor market. education is estimated as the more important labor characteristic for improving social welfare.
Empleo formal y empresas modernas
Ortiz,Carlos Humberto; Uribe,José Ignacio; Vivas,Harvy;
Perfil de Coyuntura Económica , 2010,
Abstract: based on the information of the manufacturing annual survey from 1956 to 2007, a direct relationship is found betweenthecreation of establishments and employment creation. without ignoring the effect of employment as labor costs, it is claimed the nature of employment as demand derived from economic activity. it is proposed to amend the development model to guide the economy towards diversification in technology-intensive activities and human capital so as to generate high quality employment.
Uribe,José Ignacio; Ortiz,Carlos Humberto; García,Gustavo Adolfo;
Revista de Economía Institucional , 2007,
Abstract: this article shows that the mincer equations, augmented with variables of firm size and corrected by selectivity bias, yield results that are consistent with the theories of human capital and labor segmentation. greater firm endowments of human capital and physical capital are related to greater labor income. this result is consistent with scale economies at the firm level. it also implies divisions between economic sectors due to physical and human capital markets barriers.
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