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Search Results: 1 - 10 of 192919 matches for " D.; Garrido "
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Choline Promotes Growth and Tabtoxin Production in a Pseudomonas syringae Strain  [PDF]
Lucas A. Gallarato, Emiliano D. Primo, ángela T. Lisa, Mónica N. Garrido
Advances in Microbiology (AiM) , 2012, DOI: 10.4236/aim.2012.23039
Abstract: Some Pseudomonas syringae pathovars secrete tabtoxin, a monocyclic β-lactam antibiotic, responsible for chlorosis, the principal halo blight symptom in susceptible plants as oats, rye, barley, wheat and sorghum, among other. Here, we demonstrated that the production of tabtoxin in a P. syringae strain increased at least 150%, when choline, betaine or dimethylglycine were used as nitrogen source, or when choline was added as osmoprotectant in hyperosmolar culture media. Besides, we investigated the induction of phosphorylcholine phosphatase (PchP) activity when choline or its metabolites were used as nitrogen sources. PchP is an enzyme involved in Pseudomonas aeruginosa pathogenesis through its contribution to the breakdown of choline-containing compounds of the host cells. Considering these results and that the success of a pathogenic microorganism depends on its ability to survive and proliferate in its target tissue, we propose that choline is one of the plant signals that contribute to establishment of the infection by tabtoxin-producing strains of P. syringae.
Serum insulin, glucose and non esterified fatty acids after administration of follicle-stimulating and luteinizing hormones in bitches Modificaciones de la glucemia, insulina y ácidos grasos no esterificados durante la sobrecarga de glucosa o insulina en perras tratadas con hormona folículo-estimulante y luteinizante
A. Renauld,N. V. Gomez,J. D. Scaramal,D. Garrido
Medicina (Buenos Aires) , 2003,
Abstract: This paper reports the effect of the simultaneous administration of follicle-stimulating (FSH) and luteinizing hormones (LH) on serum glucose, insulin and nonesterified fatty acid responses after glucose or insulin challenge. The animals were originally at anestrous. FSH (dose 2.5 U/kg body wt.) and LH (0.27 U/kg body wt.) were sc injected on days 1, 4, 8 and 11. Vaginal smears were obtained daily. Six untreated controls at anestrous and six treated bitches reaching proestrous were used. Glucose tolerance tests were done with a dose of 1 g of glucose per kg of body weight. Bovine insulin was administered at the dose of 0.25 U/kg body wt. During these tests, neither serum glucose and nonesterified fatty acids nor glucose distribution space and glucose clearance were affected by the treatment. The serum insulin response to hyperglycemia was greatly increased. The distribution space and clearance rate of this hormone were not affected by FSH + LH treatment. We conclude that, in the bitch, FSH + LH treatment, at doses that trigger sex seasons , increases the serum insulin response to glucose load and produces a moderate resistance to the hypoglycemic, lipogenic and antilipolytic insulin actions. These phenomena are evident during hyperglycemia. Este trabajo describe el efecto de la administración simultánea de FSH y LH sobre los niveles de glucemia e insulina y ácidos grasos no esterificados séricos luego de una sobrecarga de glucosa o insulina. Los animales se encontraban originalmente en anestro, controlado por extendidos vaginales diarios. FSH (2.5 U/kg peso corp./día y LH (0.27 U/kg peso corp./día) se inyectaron por vía subcutánea en los días 1, 4, 8 y 11 del tratamiento. Cada grupo experimental estaba formado por seis perros en anestro y seis en proestro. Las sobrecargas de glucosa (1g/kg peso corp.) fueron administradas por vía endovenosa rápida. Las concentraciones de glucosa en sangre o ácidos grasos no esterificados séricos durante los tests de sobrecarga, los espacios de distribución de glucosa en sangre e insulina sérica o sus clearances plasmáticos no se vieron afectados por el tratamiento. Concluimos que la secreción de insulina como respuesta a una sobrecarga de glucosa aumenta significativamente en perras en anestro tratadas con FSH + LH. Al mismo tiempo se observa una moderada resistencia a la insulina, en los efectos hipoglucemiantes, lipogénicos y antilipolíticos de esta hormona durante esta prueba.
Effects of aquatic exercise on depression and anxiety in ischemic stroke subjects  [PDF]
Felipe J. Aidar, Nuno D. Garrido, António J. Silva, Victor M. Reis, Daniel A. Marinho, Ricardo Jacó de Oliveira
Health (Health) , 2013, DOI: 10.4236/health.2013.52030
Abstract:

Background: Stroke ranks third and is the leading cause of permanent disability in western countries. Furthermore there are no treatments for the psychosocial effects of this pathology. Purpose: Analyse the effect of an aquatic exercise program in depression and trace and state anxiety in subjects who suffered an ischemic stroke. Methods: Two groups were analyzed: experimental group (EG) n = 15, 50.3 ± 9.1 years; control group (CG) n = 13, 52.5 ± 7.7 years. EG underwent a 12-week aquatic exercise program. Both groups were evaluated in pre and post- treatment using Beck Depression Inventory (BDI) and Trace State Anxiety Inventory (IDATE). Wilcoxon signed-rank and Mann-Whitney tests were used to compare moments and groups, respec- tively. Results: The BDI scores of aquatic activities were: pre-treatment, 17.4 ± 7.7 and 16.9 ± 8.6 for the EG and CG, respectively; post-treat- ment, 13.2 + 7.1 and 16.4 + 7.9 for the EG and CG, respectively. The IDATE scores for anxiety trace in strength training were: pre-treatment, 43.2 + 12.5 and 42.9 + 12.2 for the EG and CG, respec- tively; post-treatment, 39.7 + 7.1 and 42.6 + 12.1 for the EG and CG, respectively. The IDATE scores for anxiety state in strength training were: pre-treatment, 46.9 + 7.6 and 47.4 + 8.1 for the EG and CG, respectively; post-treatment, 44.4 + 7.9 and 47.5 + 8.0 for the EG and CG, respectively. Significant differences were found in pre and post-treatment values in the EG and between groups in the depression and trace and state anxiety levels in post-treatment (p < 0.05). Conclusions: Aquatic physical activity contributes to an improvement of the levels of depression and anxiety in people who suffered a stroke.

Discoloration on Methylene Blue Solutions by Direct and Catalytic Ozonation  [PDF]
Antonio D. Rodriguez-Lopez, Jose Garcia-Garrido, Cynthia Perez-Ramiro, Esperanza M. Garcia-Castello
Journal of Materials Science and Chemical Engineering (MSCE) , 2013, DOI: 10.4236/msce.2013.15007
Abstract:

During textile manufacturing, huge amounts of wastewaters characterized by removed impurities and high concentrations of dye are produced. These wastewaters cause several problems when they are discharged to the environment. The use of ozone in wastewater treatment results of interest. In this work we propose to assess the discoloration rate of different synthetic wastewaters as a function of pH, dye concentration (methylene blue (MB)) and reaction time. A comparison of discoloration rate between conventional ozonation and catalytic ozonation salts of copper, zinc, silver and nickel was also performed. For the optimization of the ozonation process of colored solutions, it was used a central composite experimental design with five replicates of the center point resulting to evaluate the influence of the independent variables at different ranges of pH, [MB] and time. In the catalyst-assisted ozonation, [MB], pH and the reaction time were fixed to 100 mg/L, 5.5 and 15 min, respectively. The optimized experimental conditions to provide maximum discoloration were pH=3.3; [MB]=8.6 mg/L and time=74.3 min. Regarding the catalyst-assisted ozonation, it was found that CuSO4 catalyst gave better color reduction if compared with other catalysts assayed.

Predicción del tipo de cambio peso-dólar utilizando Redes Neuronales Artificiales (rna)
Zapata Garrido,Luis Alberto; Díaz Mojica,Hugo Fabián;
Pensamiento & Gestión , 2008,
Abstract: the objective of the present work is to realize predictions of the type of change peso-dollar being used artificial neuronal networks (anr′s), for which, the investigation was based to determine the existing relation between the obtained results and the effective types of change in the dates of study, to determine the type of neuronal network that adapts more to the prediction of types of change and to analyze the behavior of the variables of the anr in the process of prediction of the types of change. in order to obtain this, using software easy-n-extra, we selected information of twelve economic variables of the year 2005 that served as entrance to a system of neuronal networks, in that the exit was the type of change. once realized the training of the network and established the values of the variables of entrance for the prediction process, the values of the type of change for the first month of year 2006 were obtained; of this form, eighteen tests were realized, using different combinations from variables. the obtained results show to low allowable errors between the predictions and the real results.
Control de malezas por medios mecánicos en el cultivo del arroz en el sector no especializado. Primera parte
Romero Garrido,Luís; Díaz. álvarez,Maximino E;
Revista Ciencias T??cnicas Agropecuarias , 2011,
Abstract: an analysis of the importance of harvesting rice in unirrigated lands was carried out, given the current and perspectives limitations of availability of water, what brings in consequence the vertiginous development of underbrush that they compete with the cultivation and that they constitute the problem to solve. the selection of the mechanical method, as the most effective and economic, for the elimination of underbrush was carried out too. of the above-mentioned the objective of the present work that consists in determining some physics - mechanical properties of the plants of rice of the variety ia cuba 29 that are defined for morphological parameters, for different irrigation regimens. the results allow to conclude that already have the dimensions of wide, height and diameter of group of the plants and the working area of the mechanical elements to design.
Predicción del tipo de cambio peso-dólar utilizando Redes Neuronales Artificiales (rna)
Luis Alberto Zapata Garrido,Hugo Fabián Díaz Mojica
Pensamiento & Gestión , 2008,
Abstract: El objetivo de este trabajo es realizar predicciones del tipo de cambio peso-dólar utilizando Redes Neuronales Artificiales (RNA′s), para lo cual la investigación se basó en determinar la relación existente entre los resultados obtenidos y los tipos de cambio vigentes en las fechas de estudio, determinar el tipo de red neuronal que más se adapta a la predicción de tipos de cambio y analizar el comportamiento de las variables de la RNA en el proceso de predicción de los tipos de cambio. Para lograr esto, utilizando el software Easy-NN-plus, seleccionamos información de doce variables económicas de 2005 que sirvieron como entrada a un sistema de redes neuronales, en el que la salida era el tipo de cambio. Una vez realizado el entrenamiento de la red y establecidos los valores de las variables de entrada para el proceso de predicción, se obtuvieron los valores del tipo de cambio para el primer mes de 2006; de esta forma, se realizaron dieciocho pruebas, utilizando diferentes combinaciones de variables. Los resultados obtenidos muestran márgenes de error bajos entre las predicciones y los resultados reales. The objective of the present work is to realize predictions of the type of change peso-dollar being used Artificial Neuronal Networks (ANR′s), for which, the investigation was based to determine the existing relation between the obtained results and the effective types of change in the dates of study, to determine the type of neuronal network that adapts more to the prediction of types of change and to analyze the behavior of the variables of the ANR in the process of prediction of the types of change. In order to obtain this, using software Easy-N-extra, we selected information of twelve economic variables of the year 2005 that served as entrance to a system of neuronal networks, in that the exit was the type of change. Once realized the training of the network and established the values of the variables of entrance for the prediction process, the values of the type of change for the first month of year 2006 were obtained; of this form, eighteen tests were realized, using different combinations from variables. The obtained results show to low allowable errors between the predictions and the real results.
Estimación de magnitudes
David Díaz Gutiérrez,Rocío Garrido Martos
Pensamiento Matemático , 2012,
Abstract: Tener una referencia para medidas cotidianas basadas en la experiencia personal o profesional, o en datos conocidos por estudios previos, permite aproximar soluciones a problemas complejos y facilita la previsión de los recursos necesarios. Los órdenes de magnitud parecen adecuados como referencia, pues se estudian en la educación obligatoria y dan una idea inicial válida de dichas medidas, otorgando ciertamente una competencia básica que debe incluirse en el catálogo de las universidades.
Utilidad de las formulaciones Vimang en pacientes con osteoartrosis de rodilla Utility of Vimang formulations in patients with knee osteoarthrosis
S. Valverde,E.M. Duarte,D. Ducangé,G. Garrido
Revista de la Sociedad Espa?ola del Dolor , 2009,
Abstract: La osteoartrosis (OA) es la forma más común de artropatía y su localización en la articulación de la rodilla tiene una gran frecuencia. Dentro del grupo de fármacos de acción lenta para su tratamiento se aceptan los antioxidantes por su efecto protector en la progresión de la enfermedad. El Vimang es una marca comercial registrada que cubre varios tipos de formulaciones a partir del extracto de la corteza del árbol de mango con propiedades antioxidantes, analgésicas, antiinflamatorias e inmunomoduladoras. El objetivo del presente estudio fue determinar la actividad analgésica de las tabletas y crema Vimang en pacientes portadores de OA de rodilla y la posible mejoría de la capacidad funcional postratamiento. De igual manera, caracterizar mediante ultrasonografía los efectos del Vimang en la inflamación sinovial (efusión y proliferación) que se asocia a la entidad. Se estudiaron 10 pacientes del Hogar Santovenia con diagnóstico clínico de imagen de OA de rodilla. Sus puntuaciones diarias medias de dolor estaban comprendidas entre 4 o superiores la semana previa al inicio del tratamiento, según una escala de Likert de 11 puntos. Se aplicó el índice de capacidad funcional de WOMAC (The Westerm Ontario and Mc Master Universities Osteoarthritis Index) en la consulta inicial y al concluir el estudio. De igual manera, se realizó ultrasonido de partes blandas de ambas rodillas (equipo ALOKA 1100 con transductor de 7,5 mHz). Los pacientes fueron asignados aleatoriamente a 3 grupos (grupo Vimang tabletas 900 mg/día [n = 4], grupo Vimang tabletas 1.800 mg/día [n = 3] y grupo Vimang tabletas 900 mg/día + crema Vimang 1,2% [n = 3]). La administración de las tabletas se repartió en 3 tomas cada 8 h y la crema se aplicó 3 veces al día con el mismo intervalo en la rodilla afectada. La extensión del tratamiento en este estudio fue de 3 meses. Todos los pacientes mostraron analgesia satisfactoria a partir de los 15-21 días hasta los 3 meses. Este efecto se relaciona, al menos en parte, con la disminución de la efusión sinovial que se observó en la mayoría de las articula-ciones afectadas, pero fue independiente de la disminución del grosor de la sinovial constatada por ultrasonografía. Se observaron ambos efectos, promoción e inhibición de la proliferación sinovial, independientemente de la analgesia. La inhibición de la prolife-ración de la membrana sinovial con respecto a los valores iniciales sólo fue signifi cativa en el grupo Vimang 900. Los 10 pacientes mejoraron su calidad de vida en relación con el alivio del dolor y el aumento de la capacidad funcional según e
Evolution of oral antibiotics requests without prescription in a community pharmacy / Evolución de la demanda de antibióticos orales sin receta en una farmacia comunitaria
Barris D,Rodríguez Zarzuelo C,Sabio B,Garrido B
Seguimiento Farmacoterapéutico , 2005,
Abstract: Objectives: To analyze the demand of oral antibiotics without prescription in an community pharmacy, and to compare this demand with 2000. Methods: Cross-sectional descriptive study in a community pharmacy at Benalmadena – Malaga Spain). From March to September 2004, all patients requesting an antibiotic without prescription were surveyed, gathering data about: age, gender, requested antibiotic, who is the antibiotic for, who advised the antibiotic, requesting cause (health problem), and pharmacist intervention result. Results: 279 requests for oral antibiotics without prescription were recorded. Age group more frequently requesting antibiotics is 31-45 years old (41.2%). Someone different from the user did 46.6% of requests. Self-medication reached 57.0% of total antibiotics, and medical prescription without a prescription form was 43.0%. Total antibiotics request by therapeutic group was: penicillins (49.1%), macrolides (17.2%), quinolones (6.8%), cefalosporins (6.1%), sulfamides (5.4%), and tetraciclins (3.2%). The main causes for requesting were throat problems (36.2%) and teeth problems (23.3%). In 55.4% of self-medication requests pharmacist could not persuade the patient to use a different drug or to visit the physician. Conclusions: In our health-care area, there exist evidence of high percentages of self-medication with antibiotics, and of prescriptions without a prescription form.
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