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Search Results: 1 - 10 of 407627 matches for " Guadalupe M Guatemala-Morales "
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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
Experimental Type 2 Diabetes Induces Enzymatic Changes in Isolated Rat Enterocytes
Isabel M. Martínez,Inmaculada Morales,Guadalupe García-Pino,José E. Campillo,María A. Tormo
Experimental Diabetes Research , 2003, DOI: 10.1155/edr.2003.119
Abstract: Diabetes in humans and in experimental animals produces changes in the function and structure of the small intestine. The authors determined the activity of intestinal disaccharidases (maltase and sucrase) and of 6-phosphofructo-1-kinase (PFK-1) in enterocytes isolated from the small intestine of male Wistar rats (2.5 to 3 months old) with experimental nonobese type 2 diabetes, induced by streptozotocin (STZ) injection on the day of birth (n0-STZ) or on the 5th day of life (n5-STZ), with different degrees of hyperglycemia and insulinemia (n0-STZ and n5-STZ models). The glycemia (mmol/L) of the diabetic rats (n0-STZ: 8.77 ± 0.47; n5-STZ: 20.83 ± 0.63) was higher (P < .01) than that of the nondiabetic (ND) rats (5.99 ± 0.63); on the contrary, the insulinemia (ng/mL) was significantly lower in both n0-STZ (1.74 ± 0.53; P < .05) and n5-STZ (1.12 ± 0.44; P < .01) diabetic rats than in normal rats (3.77 ± 0.22). The sucrase and maltase activities (U/g protein) in diabetic rats (n0-STZ: 89 ± 9 and 266 ± 12; n5-STZ: 142 ± 23 and 451 ± 57) were significantly higher than those in the ND group (66 ± 5 and 228 ± 22). The PFK-1 activities (mU/mg protein) in the diabetic models (n0-STZ: 14.89 ± 1.51; n5-STZ: 13.35 ± 3.12) were significantly lower (P < .05) than in ND rats (20.54 ± 2.83). The data demonstrated enzymatic alterations in enterocytes isolated fromthe small intestine of n0-STZ rats that are greater (P < .05) than in the more hyperglycemic and hypoinsulinemic n5-STZ animals. The results also show that nonobese type 2–like diabetes in the rat produces modifications that favor an increase in glucose absorption rates.
Prevalencia de deficiencia de hierro y de anemia por deficiencia de hierro en adolescentes embarazadas del noroeste de México, 2007-2008
Méndez Estrada,Rosa Olivia; Pacheco,Bertha; Noriega Verdugo,Hypathia; Quihui,Luis; Morales,Guadalupe; Valencia J,Mauro E;
Archivos Latinoamericanos de Nutrición , 2009,
Abstract: iron deficiency anemia (ida) remains a word public health problem, particularly in children and child-bearing-age women. iron demands need to be covered by adolescent women due to the increased physical growing, menstruation, pregnancy and fetal growing tissues at this life stage. this study was proposed to investigate the prevalence of iron deficiency and ida in pregnant adolescent women from northwestern mexico. participated 186 women under 19 years old during the first or second trimester of pregnancy who attended the local health institutions in hermosillo sonora. questionnaires and 24 hr recalls were administered to collect socioeconomic and dietary information respectively. hemoglobin (hb), hematocrit, ferritin and eritrocytic protoporphyrin were measured. hb and ferritin values were used to categorize the recruited women into normal (37.4%), iron deficient (55.5%) and ida (7.1%) groups. six and seven women showed moderated and light anemia status in the ida group. fe and fiber intake and weeks of pregnancy were associated with the biochemical indicators of iron at least in two women groups. the high percentage of iron deficient women in this study is demanding the identification and attention of maternal factors and food habits that are risk of iron deficiency in pregnant women
Intestinal parasitism in schoolchildren in 2005, 2006 and 2007: A real challenge to overcome by the national deworming campaign in Northwestern Mexico  [PDF]
Luis Quihui Cota, Gloria Guadalupe Morales-Figueroa
Open Journal of Preventive Medicine (OJPM) , 2013, DOI: 10.4236/ojpm.2013.32024
Abstract:

Introduction: Intestinal parasitism has been a challenge to overcome for the Mexican deworming campaign and this study determined the prevalence of these infections in schoolchildren treated with albendazole in Northwestern Mexico. Methods: Study sites in marginal conditions, with gastrointestinal infections and albendazole intervention were selected. The Faust and Kato Katz techniques were used to identify the parasites spp. and the NCSS software was used for statistical analysis. Results: A total of 450, 389 and 364 schoolchildren participated in 2005, 2006, and 2007 respectively during this study. The mean age was 7.9 (±1.3). The estimated prevalences were of 42%, 30% and 37% for protozoa infections, and 11%, 12% and 11% for helminth infections in 2005, 2006 and 2007 respectively. Conclusion: The education strategies should be integrated into the Mexican deworming campaign.

Calibration Methods of Deception Detection  [PDF]
Claudia Castro, Ernesto Octavio Lopez, Guadalupe Elizabeth Morales
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.519216
Abstract: A sample of judges with different ages (children, young adults and adults) as well as a sample of actors (young adults) was required to participate in a deception detection study. Judges were required to evaluate 16 videos where a person might be lying or not lying about a video content. The study sought to look over three aspects of judges’ accuracy judgments related to deception detection (discrimination, calibration and global error) by using calibration graphs. Results showed that some children outperformed adults by better estimating the probabilities of being deceived but they performed the same as both adult groups at discriminating those actors who lied from those who did not lie. It is argued that since children have not been sufficiently exposed to cultural factors related to deceiving behavior, they have better calibration judgment. Implications to detection deception research are discussed in the paper.
Estado nutricional, antropométrico, bioquímico y clínico en preescolares de la comunidad rural de Canaguá. Estado Mérida
Angarita,Coromoto; Machado,David; Morales,Genoveva; García de Méndez,Guadalupe; Arteaga de Viloria,Fanny; Silva,Tania; Alarcón C,Oscar M;
Anales Venezolanos de Nutrición , 2001,
Abstract: in the present study we assessed the nutritional status of 66 preschool children from different social-economics levels, chosen by the random stratified samples, living in the rural community of canaguá, state of mérida. evaluation was done through anthropometric, clinical-nutritional, hematological, biochemical, and parasitological tests. according to anthropometric values, more than 70% of the children studied were within the norm. hematological and biochemical values showed than more than 80% of the children had acceptable levels of hemoglobin, hematocrit and mean cellular hemoglobin concentration, whereas the percentaje of subjects with serum iron levels below 0.50 m g/ml was 30%. thus, six preeschool children, five malnourished and one normal, had a ferropenic microcytic hypochromic anemia. the mean serum concentrations of vitamin a and vitamin e were 0.300± 0.15 and 5.87± 0.43 m g/ml, respectively. if the cutoff value of < 0.249 m g/ml is chosen to indicate subjects at possible risk for vitamin a deficiency then 27% of our sample was at risk. 30% of the preschoolers presented clinical signs such as dry hair, pale conjuntives, muscular hypothony. this study also reports a high prevalence of cavities in the population studied. stool examination demonstrated that 66.67% of children presented parasite infestation. it is concluded that the preschool childred studied were in acceptable conditions in the majority of the parameters used in clinico-nutritional, hematological and biochemical evaluation.
Calidad bacteriológica del agua para consumo humano en zonas de alta marginación de Chiapas
Sánchez-Pérez,Héctor Javier; Vargas-Morales,María Guadalupe; Méndez-Sánchez,José Domingo;
Salud Pública de México , 2000, DOI: 10.1590/S0036-36342000000500005
Abstract: objective: to analyze the bacteriological quality of drinking water (bqdw) and its association with diarrhoea and intestinal parasites in children 1 to 14 years old, in areas of high levels of poverty in chiapas, mexico. material and methods: from march to september 1998, drinking water was collected from a random sample of 99 households in the border region of chiapas, mexico; data on diarrhoeal disease (in the past 15 days) were collected and stool testing for intestinal parasites was performed in children 1 to 14 years old (n= 322). the bqdw was determined by the filtration membrane technique. intestinal parasitic infections were determined by the faust method. the c2 statistic was used to analyse factors associated with bqdw. results: only 31% of the water samples were adequate for human consumption. the bqdw and the presence of diarrhoea (informed by the mothers of the children) showed no association. children living in households with inadequate bqdw had a higher prevalence of entamoeba histolytica and a greater tendency to have intestinal parasites. conclusions: it is necessary to develop programs that improve bqdw and to develop education efforts aimed at increasing the use of boiled water and the adequate management and care of community water storage sites.
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