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Search Results: 1 - 10 of 494144 matches for " Antonio de Jesús;Galarza Mendoza "
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Ordenamiento ecológico comunitario: un modelo de manejo de recursos naturales para el desarrollo comunitario. Estudio de caso ejido Potrero de los López, Aguascalientes
Meraz Jiménez, Antonio de Jesús;Galarza Mendoza, José Luis;Sosa Ramírez, Joaquín;Ponce Montoya, Amalio;Torres González, Jorge Alejandro;
Revista Chapingo. Serie ciencias forestales y del ambiente , 2011, DOI: 10.5154/r.rchscfa.2010.11.044
Abstract: natural resource management based on participatory community-based environmental management (pcem) is a support tool to implement rural development projects at the community level, from a regional planning framework through the use and application of technical tools to analyze the potentials and limits of natural resources and the use of a methodology to drive participatory processes. management elements and production processes were characterized and defined using landform, land use and vegetation through field samplings of 1000 m2 plots for forests and 1 m2 ones for pasturelands, validated by sub-supervised spot image classification and the edaphological conditions proposed by inegi (1978). through participatory planning workshops conducted in 2006, the results of the technical analysis were compared and validated and the community proposals were identified. among the strategic guidelines are: appropriate livestock, agricultural, forestry and ecotourism uses; conservation, reconstruction of water bodies; and restoration of degraded ecosystems, which is based on taking decisions such as establishing buffer zones between use areas and conservation areas where the original ecosystem remains.
Anticuerpos Anticitoplasma de Neutrófilos (ANCA): desde su descubrimiento hasta su difusión
Camargo Mendoza,Juan Pablo; Cantillo Turbay,Jorge de Jesús; Restrepo Suárez,José Félix; Iglesias Gamarra,Antonio;
Revista Colombiana de Reumatología , 2008,
Abstract: objectives identify key aspects in the historical development of antineutrophil cytoplasmic antibodies. to establish in a comprehensive manner the role of immunology as a basis in medical knowledge. recognize the characters that contribute to the understanding of vasculitis associated with antineutrophil cytoplasmic antibodies. materials and methods: review of literature from 1982 to 2008 through pubmed, embase, ovid, sciencedirect, springerlink, blackwell synergy, md consult, proquest, highwire, library and archive of the national university of colombia. results: 3645 items in english and spanish were found in relation to the antineutrophil cytoplasmic antibodies; which we select with an emphasis on medical historical review, relevant clinical trials, controlled and randomized studies, and review in general. of all the items found, we select those who have a greater interest from a historical point of view and clinical application. finally for analysis we used 53 bibliographic sources. conclusions: although the discovery of the antineutrophils anticytoplasmic antibodies was an accidental finding, had a rapid spread, being considered as evidence in diagnosis of vasculitis since their first years of its discovery. there are a great evidence about the contribution of nephrology and immunology in several publications. on the other hand, there are many diseases and medicines that are associated with these auto-antibodies, however, in a little of them has value in terms of diagnostic orientation, or severity profile in the treatment.
Anticuerpos Anticitoplasma de Neutrófilos (ANCA): desde su descubrimiento hasta su difusión Antineutrophil cytoplasmic antibody (ANCA): since its discovery until its diffusion
Juan Pablo Camargo Mendoza,Jorge de Jesús Cantillo Turbay,José Félix Restrepo Suárez,Antonio Iglesias Gamarra
Revista Colombiana de Reumatología , 2008,
Abstract: Objetivos: Identificar los aspectos fundamentales en el desarrollo histórico de los anticuerpos anticitoplasma de neutrófilos (ANCA). Establecer de manera amplia el papel de la Inmunología como base en el conocimiento médico. Reconocer a los investigadores que contribuyen al entendimiento de las vasculitis asociadas a ANCA. Materiales y métodos: revisión de la literatura desde 1982 a 2008 a través de Pubmed, Embase, Ovid, Science Direct, SpringerLink, Blackwell Synergy, MD Consult, ProQuest, Highwire, biblioteca y hemeroteca de la Universidad Nacional de Colombia. Resultados: se encontraron 3645 artículos en relación con ANCA, los cuales fueron seleccionados en idiomas inglés y espa ol con énfasis en revisiones históricas médicas, ensayos clínicos relevantes, estudios controlados, aleatorizados y revisiones en general. Del total de artículos encontrados, seleccionamos aquellos que tuvieran un mayor interés desde el punto de vista histórico y de aplicación clínica, quedando finalmente para el análisis 53 fuentes bibliográficas. Conclusiones: aunque el descubrimiento de los ANCA fue un hallazgo accidental, tuvo una rápida difusión, siendo considerados éstos como prueba diagnóstica en vasculitis desde los primeros cinco a os de su descubrimiento. Se evidencia gran aporte de la Inmunología y la Nefrología en las diferentes publicaciones. Por otra parte, existen muchas patologías y medicamentos que se asocian a estos autoanticuerpos; sin embargo, son pocos en los cuales se tiene valor en cuanto a orientación diagnóstica, severidad o perfil en el tratamiento. Objectives Identify key aspects in the historical development of antineutrophil cytoplasmic antibodies. To establish in a comprehensive manner the role of immunology as a basis in medical knowledge. Recognize the characters that contribute to the understanding of vasculitis associated with antineutrophil cytoplasmic antibodies. Materials and methods: review of literature from 1982 to 2008 through Pubmed, Embase, Ovid, ScienceDirect, SpringerLink, Blackwell Synergy, MD Consult, ProQuest, HighWire, library and archive of the National University of Colombia. Results: 3645 items in English and Spanish were found in relation to the antineutrophil cytoplasmic antibodies; which we select with an emphasis on medical historical review, relevant clinical trials, controlled and randomized studies, and review in general. Of all the items found, we select those who have a greater interest from a historical point of view and clinical application. Finally for analysis we used 53 bibliographic sources. Conclusions: alth
The importance of diet in osteoporosis  [PDF]
Nicolás Mendoza, Jesús Presa, Antonio Martínez-Amat, Fidel Hita
Open Journal of Epidemiology (OJEpi) , 2013, DOI: 10.4236/ojepi.2013.32012
Abstract:

The knowledge of risk factors associated with the development of osteoporosis (OP) is vital in the prevention strategy of this disease and its physical and economic consequences. The epidemiological characteristics of our population of postmenopausal women exhibit a pattern similar to that described in other studies, showing a proportional relationship between the magnitude of the risk factor and the severity of osteopenia/osteoporosis. Moreover, we observed protective effects for several dietary factors, such as the consumption of fruits, vegetables, and cereals; the moderate consumption of fish, alcohol, and dairy products; and the low intake of red meat, on spinal bone mineral density (BMD). Only the intake of grains and vegetables exerted protective effects on hip BMD.

Pluralismo jurídico y derechos humanos en la experiencia indígena mexicana de los últimos a os / Legal Pluralism and Humans Rights in Mexican indigenous experience in last two years
Jesús Antonio de la Torre Rangel
Revista Direito e Práxis , 2013,
Abstract: Resumo: O tema é a rela o entre o pluralismo jurídico e a eficácia dos direitos humanos que sustentam uma vida com dignidade. As experiências indígenas, no México, nas décadas de 1990 a 2000, s o apresentadas como a concretiza o dos direitos humanos no seu exercício do pluralismo jurídico, com base em uma práxis de liberta o. Na zona zapatista de Chiapas e na Costa-Monta a de Guerrero foi concretizado o direito que nasce do povo: o direito à autonomia ou livre determina o, o direito a se autogerir por seus próprios sistemas normativos, o direito a distribuir justi a de acordo com suas normas e sentido de equidade, entre outros. Palavras-chaves: Pluralismo jurídico; Direitos humanos; Direito que nasce do povo. Abstract: This article is about the relation between pluralism and effectiveness of Humans Rights that sustain a life with dignity. In Mexico, from 1990 to 2000, indigenous experiences are presented as a consolidation of Humans Rights in the exercise of legal pluralism based on a praxis of liberation. In Chiapas Zapatista’ zone and in Costa-Monta a de Guerrero a Right which rises from people was reinforced: the Right of Autonomy or Self-determination, the Right of self-manage properly legal systems, the Right to distribute justice according to own rules and the sense of equity.Keywords: Legal Pluralism, Human Rights, Right from people
Socio-Spatial Inequality in Education Facilities in the Concepción Metropolitan Area (Chile)  [PDF]
Helen De la Fuente, Carolina Rojas, María Jesús Salado, Juan Antonio Carrasco, Tijs Neutens
Current Urban Studies (CUS) , 2013, DOI: 10.4236/cus.2013.14013
Abstract: In Concepción Metropolitan Area (CMA), the uneven geographical distribution of population, exacerbated by the recent spread of urban growth, has promoted a clear spatial inequity in the provision of quality educational facilities. The objective of this research is to systematically compare the 493 schools of existing educational opportunities in the CMA with the aim to evaluate the spatial equity in order to improve a most inclusive urban planning. Statistical and graphical analysis revealed that nearest units to the center of the metropolitan area (Concepción) had better conditions than the farthest with respect to students-teacher ratio, teaching quality and academic outcomes assessment. This center-periphery pattern shows clearly the challenges to be faced in the CMA with respect to equitable access to quality educational resources.
Crecimiento y productividad en la asociación agroforestal ‘cedro-lima-chaya’ a diferente densidad de plantación Growth and productivity in the agroforestal association ‘cedar-lime-chaya’, a different planting density
Jesús M. E. Aguilar Luna,Pedro Antonio Macario Mendoza,Salvador Hernández Daumás,Esperanza Huerta Lwanga
Revista Brasileira de Ciências Agrárias , 2011, DOI: 10.5039/agraria.v6i4a1376
Abstract: En este trabajo se analizó el crecimiento y la productividad en la asociación agroforestal ‘cedro-lima-chaya’, para conocer su densidad de plantación (DP) óptima inicial. Cedros y limas se establecieron en un círculo ‘Nelder’ de 3154 m2, que consistió en 20 círculos concéntricos alternados con cedros y limas a 1,50 m de distancia y 10 plantas por círculo; la chaya se estableció en un marco rectangular a 1,50 x 3,00 m, superpuesto al círculo ‘Nelder’. Se definieron ocho DP, de 2602 a 3772 plantas ha-1 con 10 repeticiones, para evaluar l s siguientes variables: longitud de la raíz principal, radio de exploración radical, tasa de crecimiento, índice de vigor de planta, índice de área foliar y producción de biomasa seca. Los resultados arrojaron diferencias em el crecimiento radical, en el aéreo y en la productividad (α _0,05); el crecimiento radical en cedros y limas fue mayor a 2602 plantas ha-1, y en chayas a 3772 plantas ha-1; el crecimiento aéreo en cedros y limas fue mayor a 3270 plantas ha-1, y en chayas a 2602 plantas ha-1; y la mayor productividad se obtuvo de 3129 a 3425 plantas ha-1. Por lo que la DP en la cual se logró el mayor crecimiento y productividad fue de 3046 a 3297 plantas ha-1. In this study was analyzed the growth and the productivity in the agroforestal association ‘cedar-lime-chaya’, to know the optimum initial plantation density (PD). Cedars and limes were placed in a ‘Nelder’ circle of 3154 m2 which consisted of 20 concentric circles alternating cedars and limes to 1.50 m apart and 10 plants per circle; the chayas was established in a rectangular frame to 1.50 x 3.00 m, superimposed on the ‘Nelder’ circle. Eight PD was defined, from 2602 to 3772 plants ha-1 with 10 repetitions, to evaluate the following variables: length of main root, radical exploration radius, growth rate, index plant vigor, index leaf area and productions dry biomass. Results showed differences in the below growth, above growth and productivity (α _0.05), the below growth in cedars and limes was greater to 2602 plants ha-1, and chayas to 3772 plants ha-1; above growth in cedars and limes was greater to 3270 plants ha-1, and chayas to 2602 plants ha-1; and the major productivity was obtained from 3129 to 3425 plants ha-1. The PD for get a greater growth and productivity was from 3046 to 3297 plants ha-1.
Control of an Automotive Semi-Active Suspension
Jorge de Jesús Lozoya-Santos,Ruben Morales-Menendez,Ricardo A. Ramírez Mendoza
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/218106
Abstract: Two controllers for an automotive suspensions with Magneto-Rheological (MR) dampers are proposed. One is a model-based using the Linear Parameter Varying (LPV) approach, and the other is a model-free controller with a Frequency Estimation Based (FEB) principle. The LPV controller includes an experimental nonlinear model of an MR damper using only one scheduling parameter. A comparison with a several semiactive controllers for comfort and road holding is discussed. The FEB controller is the best option based on frequency and time response analysis for comfort (10–20%), suspension deflection (30–50%), and road holding (1–5%).
Estudio sintético de furanoeremofilanos. Síntesis de la 13-nor-9-oxoeuryopsina
José Agustín Guzmán,Esther García,Virgilio Mendoza,Damaristelma de Jesús
Revista de la Sociedad Química de México , 2004,
Abstract: En este artículo describimos una estrategia dise ada para la síntesis del esqueleto básico de los furanoeremofilanos, los cuales constituyen la clase más abundante entre los furanosesquiterpenos. Las etapas clave son la doble alquilación regio- y estereoselectiva de una enona (difuncionalización vecinal en tándem) y la construcción del anillo central mediante una reacción de sustitución electrofílica aromática intramolecular. Para demostrar la factibilidad de nuestra propuesta, sintetizamos el norfuranoeremofilano 1 en 8 etapas, utilizando como materias primas 2-metil-2-ciclohexenona y 3-furaldehído.
Historia de la púrpura de Henoch-Sch?nlein
Cantillo Turbay,Jorge de Jesús; Iglesias Gamarra,Antonio;
Acta Medica Colombiana , 2007,
Abstract: henoch-schonlein purpura (hsp) is defined as a primary systemic vasculitis of small vessels characterized by predominantly iga immune deposits on the walls of the capillaries, venules, and arteriales. it typically involves skin, intestines, and glomeruli and is associated with arthritis and arthralgia. robert willan (1757-1812), the founder of modern dermatology, was the first to clearly describe vasculitis and its significance. this article analyzes the fundamental history of hps.
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