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Search Results: 1 - 10 of 716285 matches for " Guadalupe M; García-Fajardo "
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Análisis de Modelos de Lechos Fuente en Multietapa, utilizando la Distribución del Tiempo de Residencia de los Sólidos
Arriola-Guevara,Enrique; Guatemala-Morales,Guadalupe M; García-Herrera,Tania; García-Fajardo,Jorge A;
Información tecnológica , 2007, DOI: 10.4067/S0718-07642007000100019
Abstract: a comparative analysis of flow models developed for the solids in a multistage spouted bed system designed by arriola (1997), is presented. models for the residence time distribution, suitable for commercial applications in processing seeds and grains, has been selected in the study. the experimental residence time distribution function was obtained by the stimulus-response technique using colored particles. four models were compared: three compartment models, and the stirred-tank-in-series model. evaluation of these models showed that the compartment models are more suitable for commercial applications. the statistical analysis allows to conclude that the best model, due to its simplicity, is the compartment model proposed by arriola
Estudio Preliminar de las Propiedades de la Semilla de Limón Mexicano (Citrus aurantifolia swingle) para su Posible Aprovechamiento
Arriola-Guevara,Enrique; García-Herrera,Tania; Guatemala-Morales,Guadalupe M; García-Fajardo,Jorge A;
Información tecnológica , 2006, DOI: 10.4067/S0718-07642006000600015
Abstract: key properties of seed of mexican lime (citrus aurantifolia swingle) were studied for potential uses by the food industry. characteristics considered included physical properties, composition, toxicity to rodents (average lethal dose and chronic toxicity), as well as germicidal activity (inhibition rings and germicidal effectiveness). the seed contained 21% protein, 39% vegetable oil and 29% fiber, particularly lignin. the seed could potentially be used as a basic component for nutritional supplements or functional food products. the toxicity was nil, and thus seed derivatives were safe for human consumption. some germicidal effectiveness was found against candida albicans, 85.77% (starting population = 0.304*108 ufc/ml), and against escherichia coli, 91.447% (starting population = 190*108 ufc/ml), suggesting seed extracts could be used as an ingredient in germicidal products.
Estudio Preliminar de las Propiedades de la Semilla de Limón Mexicano (Citrus aurantifolia swingle) para su Posible Aprovechamiento Preliminary Study of the Properties of Mexican Lime Seed (Citrus aurantifolia swingle) for its Possible Uses
Enrique Arriola-Guevara,Tania García-Herrera,Guadalupe M Guatemala-Morales,Jorge A García-Fajardo
Información Tecnológica , 2006,
Abstract: Se obtuvieron propiedades clave de la semilla de limón mexicano (Citrus aurantifolia swingle) para su posible aprovechamiento en la industria de alimentos. Se consideraron propiedades físicas, composición, toxicidad en roedores (prueba de dosis letal media y toxicidad crónica) y actividad germicida (prueba de halos de inhibición y efectividad germicida). La semilla contiene 21% de proteínas, 39% de aceite vegetal y 29% de fibra, especialmente lignina en cantidad considerable, lo que hace viable su uso como materia prima para nutracéuticos o alimentos funcionales. La toxicidad de la semilla resultó nula por lo que es apta para el consumo humano. Se encontró cierta efectividad germicida para Candida albicans 85.77% (población Inicial = 0.304*10(8) UFC/ml) y para Escherichia coli 91.447% (población Inicial = 190*10(8) UFC/ml), por lo que puede ser usada como ingrediente en germicidas. Key properties of seed of Mexican lime (Citrus aurantifolia swingle) were studied for potential uses by the food industry. Characteristics considered included physical properties, composition, toxicity to rodents (average lethal dose and chronic toxicity), as well as germicidal activity (inhibition rings and germicidal effectiveness). The seed contained 21% protein, 39% vegetable oil and 29% fiber, particularly lignin. The seed could potentially be used as a basic component for nutritional supplements or functional food products. The toxicity was nil, and thus seed derivatives were safe for human consumption. Some germicidal effectiveness was found against Candida albicans, 85.77% (starting population = 0.304*10(8) UFC/ml), and against Escherichia coli, 91.447% (starting population = 190*10(8) UFC/ml), suggesting seed extracts could be used as an ingredient in germicidal products.
Análisis de Modelos de Lechos Fuente en Multietapa, utilizando la Distribución del Tiempo de Residencia de los Sólidos Analysis of Models of Spouted Bed Multistage Systems using the Residence Time Distribution of the Solids
Enrique Arriola-Guevara,Guadalupe M Guatemala-Morales,Tania García-Herrera,Jorge A García-Fajardo
Información Tecnológica , 2007,
Abstract: Se presenta un análisis comparativo de modelos de flujo desarrollados para los sólidos de un sistema de lechos fuente en multietapa (multistage spouted bed) dise ado por Arriola (1997). Se seleccionaron modelos de distribución del tiempo de residencia de los sólidos adecuados para la aplicación comercial del sistema en el tratamiento de granos y semillas. La determinación experimental de la función de distribución del tiempo de residencia se llevó acabo mediante la técnica estímulo-respuesta utilizando partículas coloreadas. Se compararon cuatro modelos: tres de compartimentos y el de tanques-en-serie. La comparación de esos modelos mostró que los de compartimentos son los más apropiados para aplicaciones comerciales. El análisis estadístico permite afirmar que el modelo más recomendable, debido a su simplicidad, es el modelo de compartimentos propuesto por Arriola A comparative analysis of flow models developed for the solids in a multistage spouted bed system designed by Arriola (1997), is presented. Models for the residence time distribution, suitable for commercial applications in processing seeds and grains, has been selected in the study. The experimental residence time distribution function was obtained by the stimulus-response technique using colored particles. Four models were compared: three compartment models, and the stirred-tank-in-series model. Evaluation of these models showed that the compartment models are more suitable for commercial applications. The statistical analysis allows to conclude that the best model, due to its simplicity, is the compartment model proposed by Arriola
La oclusión como factor etiopatológico en los trastornos temporomandibulares
García-Fajardo Palacios,Carlos; Cacho Casado,Alberto; Fonte Trigo,Abelardo; Pérez -Varela,Juan Carlos;
RCOE , 2007, DOI: 10.4321/S1138-123X2007000100003
Abstract: background: the relationship between occlusal discrepancies and tmj disorders does not always hold true. nonetheless, occlusal analysis is a requisite to achieve a correct diagnosis in the dysfunctional patient. many studies show that occlusal discrepancies can be a very important etiological factor. material and methods: various literature reviews describe the main occlusal types and the possibility of structural and functional relationships with tmj derangements. results: the relationship between each kind of malocclusion and a specific tmj disorder is due to different condyle positions in the glenoid fossa. it may be appropriate to introduce the term tooth-condyle unit because the stomatognathic system has a specific bone block or mandible, which encompass teeth and condyles. the various occlusal schemes can be considered dynamic which influences the joint. conclusion: the involvement of occlusion in the etiology of tmj disorder is conditioned by the presence of other factors. however, physiologic occlusion must be re-established for correct joint function. this implies that the specific biomechanics of each patient and it's correlation with biological parameters must be known in order to provide joint homeostasis.
Hacia una propuesta superadora de las dificultades de alumnos preuniversitarios en reformulaciones productivas del texto fuente (Towards a proposal for ameliorating difficulties of preuniversity students with productive reformulations of an original text)
Mónica García,Guadalupe álvarez
Onomázein : Revista de Lingüística, Filología y Traducción , 2010,
Abstract: El objetivo de este trabajo es mostrar y comparar los resultados obtenidos en diferentes etapas de una experiencia didáctica con la que buscamos contribuir al desarrollo de habilidades de reformulaciones productivas en los estudiantes preuniversitarios. Esta experiencia se lleva a cabo con alumnos del Taller de Lectoescritura del Curso de Aprestamiento Universitario de la Universidad Nacional de General Sarmiento. Se ha focalizado la superación de las dificultades que se les presentan a los alumnos al realizar la primera actividad del taller que exige habilidades de reformulación: el reemplazo de un fragmento de texto fuente por otro equivalente. A partir de la experiencia didáctica desarrollada, se presenta una primera aproximación hacia la solución de las dificultades detectadas, a partir de la cual se da lugar a una futura investigación. (The aim of this article is to show and compare the different stages results of a didactic experience through which we tried to contribute to reformulations skill development of preuniversity students. This experience was performed in a preuniversity reading and writing course given in Universidad Nacional de General Sarmiento. We specially studied the difficulties students had when they did the first course task that requires reformulation abilities: replace a statement by a similar one. This experience will go some way towards unraveling problems detected in said reformulations, and suggests important implications for a future research.)
Solar Radiation Data for the State of Jalisco and Guadalajara Metropolitan Zone, Mexico  [PDF]
H. Héctor Ulloa-Godinez, E. Mario García-Guadalupe, U. Hermes Ramírez-Sánchez, C. Jorge Regla-Carrillo, L. Aida Fajardo-Montiel
Computational Water, Energy, and Environmental Engineering (CWEEE) , 2017, DOI: 10.4236/cweee.2017.63015
Abstract: Energy development plans involving the use of solar energy are very beneficial from an environmental perspective. Its impacts are specific to geographic location; taking advantage of the solar energy potential basically depends on reliable estimates of the climatological amount of solar radiation received at the surface, which is a complex function of meteorological and environmental factors. Obtaining solar radiation data is essential for local development, to characterize them, there are several cutting-edge methods and technologies. One of them is the use of satellite images with high resolution. The aim of this paper is to assess the climatological aspects of incoming solar radiation in clear sky conditions in the State of Jalisco, Mexico and Guadalajara Metropolitan Zone. The results are intended to stimulate the use of solar radiation as an alternative energy source in an area where heavily relying on fossil fuel combustion.
Prolactinoma: un diagnóstico que debe tenerse en cuenta en ni?os con neoplasias hipofisarias
García García,E.; Rivero Garvia,M.; Aguilar Pérez,M.; Fajardo Cascos,M.; Márquez,J.;
Pediatría Atención Primaria , 2009, DOI: 10.4321/S1139-76322009000500006
Abstract: pituitary adenomas are rare in childhood and adolescence and half of them are prolactinomas. in this report, we present a 13-year-old boy with a sellar and suprasellar cystic lesion treated with surgery; afterwards, histopathological and immunohistochemical examinations revealed a prolactinoma. cystic macroprolactinomas are extremely rare in prepuberty, nevertheless they have been reported from the age of 9 years. the differential diagnosis with cystic craniopharyngioma is important, as treatment with dopamine-agonists may be the first choice in prolatinomas, whereas a transcranial surgery is required for a suprasellar craniopharyngioma.
Determinación Polarográfica de Cinc, Plomo y Cobre en Polvos Colectados del Medio Ambiente
Ma. Guadalupe García,M. T. Torres,álvaro García,E. álvarez
Revista de la Sociedad Química de México , 1998,
Abstract:
Identificación de Genes R1 y R2 que confieren resistencia a Phytophthora infestans en genotipos colombianos de papa Identification of R1 and R2 Genes conferring resistance to Phytophthora infestans in Colombian potato genotypes
Díaz M. Marcela,A. Fajardo Diego,Moreno José Dilmer,García Celsa
Revista Colombiana de Biotecnología , 2003,
Abstract: En Colombia, actualmente existen genotipos de papa con excelente calidad industrial pero muy susceptibles a P. infestans. La mejor manera de combatir este problema es mediante resistencia genética, puesto que la inversión para controlar esta enfermedad por medios químicos es muy costosa, sin olvidar la contaminación ambiental que producen. El objetivo de este trabajo fue la identificación de genes R1 y R2 en los diferenciales de papa respectivos (Solanum tuberosum ssp. tuberosum) mediante evaluación de resistencia a P. infestans y la detección molecular por medio de PCR (alelo R1) y AFLP (alelo R2). Para la detección del alelo R1 fueron empleados los primers GP179, GP21, 76-2SF2/76-2SR, SPUD237 y Sol 2749-2770F / Sol 3246-3267R. Los primers GP179, GP21 y SPUD237 fueron inespecíficos para Rl, ya que se generó un producto de amplificación en los diferenciales 1 y 2, así como también en Solanum phureja. Los primers 76-2SF2/76-2SR, y Sol 2749-2770F / Sol 3246-3267R generaron un producto de amplificación en los diferenciales 1 y 2; por el contrario, el fragmento estuvo ausente en el material susceptible. Para la detección del alelo R2, fueron implementados cinco marca-dores AFLP, de los cuales sólo dos fueron reconocidos visualmente en el diferencial 2. Los resultados mostra-ron una evidente correspondencia fenotípica y genotípica con respecto a la presencia de los genes Rl y R2. La identificación molecular de genes de resistencia a P. infestans permitirá desarrollar programas de mejoramiento genético que beneficien directamente los rendimientos de los cultivos de papa, sobre todo los de mayor interés industrial para nuestro país. Excellent industrial quality potato genotypes are currently available in Colombia; however, they are very sus-ceptible to P. infestans. The best way of fighting this problem is by genetic resistance, given that the expense of controlling this disease through chemicals is high, plus the environmental contamination provoked. This work try to identify R1 and R2 major genes in respective potato differentials (Solanum tuberosum ssp. tuberosum) by evaluating P. infestans resistance and their molecular detection by PCR (allele R1) and AFLP (allele R2). GP179, GP21, 76-2SF2/76-2SR, SPUD237 and Sol 2749-2770F/Sol 3246-3267R markers were used for R1 allele detection. GP179, GP21 and SPUD237 markers were non-specific for Rl because an amplification product was generated in differentials 1 and 2 as well as S. phureja. 76-2SF2/76-2SR and Sol 2749-2770F/Sol 3246-3267R markers created an amplification product in differentials 1 and 2, whilst the
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