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Search Results: 1 - 10 of 176432 matches for " Alejandro E.;Monroy "
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?Es bacteriostático el jugo de arándano?
Monroy-Torres, Rebeca;Matías, Alejandro E;
Revista de investigación clínica , 2005,
Abstract: background. cranberry juice is used to prevent urinary infections but it is not known if it inhibits bacterial growth in urine or in bacteriologic broth. objective. determining if cranberry juice has bacteriostatic properties. methods. the urine of 20 female university students was studied before and after drinking cranberry juice. both specimens were submitted to ph determination and inoculated with a control strain of escherichia coli. after 1 and 2 hours of incubation with the inoculum, the urine specimens were plated on agar to determine their bacterial counts. additionally, the growth of 10 e. coli strains were studied in broths with serial dilutions of juice. results. no inhibitory effect on bacterial growth was observed in urine after drinking cranberry juice. after 1 and two hours of incubation with the e. coli inoculum, control urine grew an average 132.2 and 153 x 103 colony-forming units/ml, respectively. after 1 and two hours of incubation with the inoculum, post-intervention urine grew an average 141.4 and 170.6 x 103 cfu/ml, respectively (p > 0.05). against expectations, an increment was observed in urinary ph after drinking the juice (average ph in controls, 5.8 vs. 6.2 in post-intervention specimens; p = 0.043). in vitro analysis did not find a negative trend of e. coli growth in broths with higher concentrations of juice. conclusions. cranberry juice was not associated with bacteriostatic properties and its ingestión was not followed by a drop in urinary ph, which suggests that these are not its potential beneficial effects for the management and the prevention of urinary tract infections.
Cloración y contaminación bacteriana. Aguas turbulentas en los hospitales
Macías, Alejandro E.;Monroy, Rebeca;Mu?oz, Juan M.;Medina, Humberto;Ponce de León, Samuel;
Revista de investigación clínica , 2006,
Abstract: objective. to know the quality of the water from hospitals and the risks that poor chlorination implies. methods. we analyzed 90 water specimens from 15 hospitals (9 from the private and 6 from the public sector). specimens were obtained from three areas (hospitalization ward, operating room, and kitchen) in two visits. results. by microbiologic analysis, we found 30 (33.3 %) contaminated specimens. by chemical analysis, we found only 49 (54.5 %) specimens with adequate chlorination (> 1 mg/l). of the 30 contaminated specimens, only 7 (23.3%) had adequate chlorination. on the other hand, of the 60 specimens without contamination, 42 (79%) had adequate chlorination ( - 17.561, p < 0.001). the significant difference was sustained when the criterion for appropriate chlorination was established at > 0.5 mg/l. conclusions. hospitals require guidelines for water chlorination and testing to maintain it at > 0.5 mg/l in every point of use.
Análisis económico de la buena fe en el derecho de contratos
Daniel Alejandro Monroy Cely
Contexto , 2011,
Abstract: El presente artículo constituye un aporte a la discusión relativa de cómo los postulados básicos del AED pueden alinearse y robustecer consistentemente algunas de las instituciones más tradicionales del derecho, en este caso, el principio de buena fe como norma de comportamiento en los escenarios contractuales. Para ello, el artículo desarrolla, por un lado, una aproximación de algunas de las funciones básicas del AED en el derecho de contratos, basadas principalmente en los criterios de racionalidad individual y eficiencia; y por otro lado, se efectúa una breve exposición desde la perspectiva jurídica tradicional en relación con el principio de buena fe en materia de contratos. Lo anterior es utilizado para argumentar finalmente, cómo se puede integrar consistentemente la visión propia del AED, sus postulados de eficiencia y racionalidad individual, con otros principios jurídicos, que como la buena fe, aparentemente son más cercanos a las nociones de justicia (propias del derecho tradicional) y que tenderían a excluir –aparentemente– los postulados del AED resaltados.
Regulación de riesgos. Una doble aproximación a partir del Análisis Económico del Derecho
Daniel Alejandro Monroy Cely
Contexto , 2010,
Abstract:
TEORíA PROSPECTIVA, EFECTO MARCO Y LOS MENSAJES DE DISUASIóN DE CONSUMO DE TABACO EN COLOMBIA
Monroy-Cely,Daniel Alejandro;
Vniversitas , 2011,
Abstract: the main target of this reflex paper is to explain some ideas about behavioral economics, such as the prospect theory and the framing effect, as well as its possible implications for the law, especially in the context of tobacco control law in colombia and the current package warning labels. the paper concludes that these warnings have the potential to reduce the tobacco consumption. however, the effectiveness of these messages could be increased if the information is reframed in an alternative way.
TEORíA PROSPECTIVA, EFECTO MARCO Y LOS MENSAJES DE DISUASIóN DE CONSUMO DE TABACO EN COLOMBIA PROSPECT THEORY, FRAMING EFFECT AND DETERRENCE MESSAGES FOR TOBACCO CONSUMPTION IN COLOMBIA
Daniel Alejandro Monroy-Cely
Vniversitas , 2011,
Abstract: El objetivo de este artículo de reflexión es explicar algunas ideas propias de la economía conductual tales como la teoría prospectiva y el efecto marco (framing effect), así como sus posibles implicaciones para el derecho, concretamente respecto a la regulación relacionada con la disuasión del consumo de tabaco en Colombia que ha derivado en los actuales mensajes de advertencia impresos en las cajetillas. El artículo concluye que dichos mensajes tienen la potencialidad de reducir eficazmente el consumo de tabaco, pero dicha efectividad podría incrementarse aun más si la información contenida en los mensajes es reenmarcada de una manera alternativa. The main target of this reflex paper is to explain some ideas about behavioral economics, such as the prospect theory and the framing effect, as well as its possible implications for the law, especially in the context of tobacco control law in Colombia and the current package warning labels. The paper concludes that these warnings have the potential to reduce the tobacco consumption. However, the effectiveness of these messages could be increased if the information is reframed in an alternative way.
Radiolanthanides Device Production  [PDF]
F. Monroy-Guzman, F. Jimenez Barreiro, E. Jaime Salinas, A. L. Vera Trevi?o
World Journal of Nuclear Science and Technology (WJNST) , 2015, DOI: 10.4236/wjnst.2015.52011
Abstract: 149Pm, 166Ho, 161Tb and 177Lu conjugated to chemical agents (monoclonal antibodies, polypeptide, etc.) have the appropriate decay characteristics for imaging and therapeutic studies and consequently the potential to be useful in radiotherapy and diagnosis. These carrier-free radioisotopes can be produced by neutron irradiation of a lanthanide target followed by β-?decay, and a posterior radiochemical separation of the daughter radionuclide from macro-amounts of the parent target. In order to produce carrier free 149Pm, 161Tb, 166Ho and 177Lu for radiotherapy, with a radionuclide purity of more than 99.9%, a device production was developed based on separation of Nd/Pm, Gb/Tb, Dy/Ho and Yb/Lu by extraction chromatography.
COMPARACIóN DEL USO DE ESTEROIDES CON EL MANEJO CONVENCIONAL DE LA EXACERBACIóN DE LA ENFERMEDAD PULMONAR OBSTRUCTIVA CRóNICA
Pérez-Monroy1,Ariel; Camargo,Juan Pablo; Junca,Alejandro;
Revista Facultad de Medicina de la Universidad Nacional de Colombia , 2010,
Abstract: background. chronic obstructive pulmonary disease is a common condition characterized by limited chronic, progressive and irreversible airflow that affects 52 million people worldwide. objective. to compare two different steroid schemes with current conventional treatment of non-acidotic acute exacerbations of chronic obstructive pulmonary disease. materials and methods. the study was conducted in the clínica carlos lleras restrepo in bogotá. a total of 106 patients diagnosed with exacerbated copd were assigned to 3 treatment groups: a) conventional treatment, b) hydrocortisone and conventional treatment and c) prednisone and conventional treatment. after 72 hrs, the percentage of change in peak flow values, the variation in lung auscultation and the clinical perception of improvement were evaluated. the length of hospital stay, the need for additional treatments and mechanical ventilation, and the presence of side effects were recorded. results. we did not find any significant differences in treatment outcomes between the three schemes, except for a greater perception of symptom improvement with hydrocortisone. in the subgroup analysis, oral prednisone shortened the length of hospital stay and improved the peak expiratory flow and the subjective perception of symptoms in patients over 80 years old, with a fev1 < 50% of predicted, and a severe exacerbation. sex, functional class, cause and type of exacerbation, number of exacerbations per year, and cumulative smoking history did not affect the treatment outcome. the most frequently reported side effect of steroid therapy was hyperglycemia. conclusions. systemic steroids were not superior to conventional therapy for copd exacerbations. however, oral prednisone caused objective and subjective improvement in patients over 80 years old with severe exacerbations and in those with severe underlying disease.
COMPARACIóN DEL USO DE ESTEROIDES CON EL MANEJO CONVENCIONAL DE LA EXACERBACIóN DE LA ENFERMEDAD PULMONAR OBSTRUCTIVA CRóNICA Comparison of steroids use in conventional management of exacerbations of chronic obstructive pulmonary disease
Ariel Pérez-Monroy1,Juan Pablo Camargo,Alejandro Junca
Revista Facultad de Medicina de la Universidad Nacional de Colombia , 2010,
Abstract: Antecedentes. La enfermedad pulmonar obstructiva crónica es una patología común caracterizada por una limitación crónica, progresiva e irreversible al flujo aéreo, afecta millones de personas en el mundo. Objetivo. Evaluar el uso de dos esquemas de esteroides, en comparación con el tratamiento convencional, en exacerbaciones agudas no acidóticas de la enfermedad pulmonar obstructiva crónica. Material y métodos. Ciento seis pacientes de la Clínica Carlos Lleras Restrepo de Bogotá, con diagnóstico de enfermedad pulmonar obstructiva crónica exacerbada se evaluaron, siendo distribuidos en tres grupos: a) Tratamiento convencional, b) Hidrocortisona más esquema convencional y c) Prednisolona más esquema convencional. Se valoró a las 72 horas el cambio porcentual en la medición del flujo-pico, la variación auscultatoria pulmonar y la percepción de mejoría clínica. Además, se consignó la estancia hospitalaria, la necesidad de tratamientos adicionales o ventilación mecánica y efectos colaterales. Resultados. No se encontraron diferencias significativas en la respuesta a los tres esquemas terapéuticos, salvo una mejor percepción subjetiva con la hidrocortisona. En el análisis por subgrupos la prednisona oral disminuyó la estancia hospitalaria, mejoró el flujo-pico espiratorio y la percepción subjetiva de síntomas en pacientes mayores de 80 a os, con VEF1 menor o igual a 50% del predicho y que cursaron con una exacerbación severa. El género, la clase funcional basal, la causa y el tipo de la descompensación, el número de exacerbaciones-a o y el número de paquetes-a o, no influyeron en la respuesta a los tres grupos. El efecto secundario más frecuente con esteroides fue la hiperglicemia. Conclusión. Los esteroides sistémicos en forma global, no son mejores que el tratamiento convencional en exacerbaciones de EPOC. Sin embargo, la prednisona oral mejoró objetiva y subjetivamente las exacerbaciones severas, en los octogenarios y aquellos con enfermedad avanzada de base Background. Chronic obstructive pulmonary disease is a common condition characterized by limited chronic, progressive and irreversible airflow that affects 52 million people worldwide. Objective. To compare two different steroid schemes with current conventional treatment of non-acidotic acute exacerbations of chronic obstructive pulmonary disease. Materials and methods. The study was conducted in the Clínica Carlos Lleras Restrepo in Bogotá. A total of 106 patients diagnosed with exacerbated COPD were assigned to 3 treatment groups: a) conventional treatment, b) hydrocortisone and conventional treatmen
Importancia de la hidrólisis estereoespecífica en la evaluación de riesgos tóxicos de insecticidas fosforamidatos
M.A. Sogorb,A. Monroy Noyola,E. Vilanova
Revista de Toxicología , 2002,
Abstract:
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