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Search Results: 1 - 10 of 14700 matches for " WILLIAM; QUI?ONES "
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Aplicación de la farmacoeconomía a los resultados de la medicación para la curación de las úlceras pépticas
Collazo Herrera,Manuel M; Haedo Quiones,William;
Revista Cubana de Farmacia , 2000,
Abstract: a comparative economic evaluation of the costs of chemotherapeutic treatments of 3 anti-ulcer schemes (ranitidine, omeprazol and cimetidine), as well as the cost-effectiveness analysis were made to determine the most convenient drug combination for the cicatrization of peptic ulcer and for the erradication of its causal agent, helicobacter pylori, from the economic and technical point of view. as a result, it was obtained a combined chemotherapeutic scheme for different cycles of time in the anti-ulcer treatments (ranitidine-omeprazol) that increases the effectiveness and reduces the costs of drugs for the national health system.
Aplicación de la farmacoeconomía a los resultados de la medicación para la curación de las úlceras pépticas
Manuel M Collazo Herrera,William Haedo Quiones
Revista Cubana de Farmacia , 2000,
Abstract: Se realizó una evaluación económica comparativa de los costos de los tratamientos quimioterapéuticos de 3 esquemas antiulcerosos (ranitidina, omeprazol y cimetidina); así como el análisis costo-efectividad para determinar la combinación de medicamentos que sería la más factible desde el punto de vista técnico-económico para la cicatrización de las úlceras pépticas y la erradicación del agente causante, el Helicobacter pylori. Como resultado se obtiene un esquema quimioterapéutico combinado para diferentes ciclos de tiempos en los tratamientos antiulcerosos (ranitidina-omeprazol), que incrementa la efectividad y disminuye los costos de los medicamentos para el sistema nacional de salud. A comparative economic evaluation of the costs of chemotherapeutic treatments of 3 anti-ulcer schemes (ranitidine, omeprazol and cimetidine), as well as the cost-effectiveness analysis were made to determine the most convenient drug combination for the cicatrization of peptic ulcer and for the erradication of its causal agent, Helicobacter pylori, from the economic and technical point of view. As a result, it was obtained a combined chemotherapeutic scheme for different cycles of time in the anti-ulcer treatments (ranitidine-omeprazol) that increases the effectiveness and reduces the costs of drugs for the national health system.
Mixed-function oxidases and esterases associated with cross-r esistance between DDT and lambda-cyhalothrin in Anopheles darlingi Root 1926 populations from Colombia
Fonseca-González, Idalyd;Quiones, Martha L;McAllister, Janet;Brogdon, William G;
Memórias do Instituto Oswaldo Cruz , 2009, DOI: 10.1590/S0074-02762009000100003
Abstract: in order to establish the insecticide susceptibility status for anopheles darlingi in colombia, and as part of the national network on insecticide resistance surveillance, five populations of insects from three colombian states were evaluated. standardised who and cdc bottle bioassays, in addition to microplate biochemical assays, were conducted. populations with mortality rates below 80% in the bioassays were considered resistant. all field populations were susceptible to deltamethrin, permethrin, malathion and fenitrothion. resistance to lambda-cyhalothrin and ddt was detected in the amé-beté population using both bioassay methods with mortality rates of 65-75%. enzyme levels related to insecticide resistance, including mixed function oxidases (mfo), non-specific esterases (nse), glutathione s-transferases and modified acetylcholinesterase were evaluated in all populations and compared with a susceptible natural strain. only mosquitoes from amé-beté presented significantly increased levels of both mfo and nse, consistent with the low mortalities found in this population. the continued use of lambda-cyhalothrin for an. darlingi control in this locality has resulted in a natural resistance to this insecticide. in addition, ddt resistance is still present in this population, although this insecticide has not been used in colombia since 1992. increased metabolism through mfo and nse may be involved in cross-resistance between lambda-cyhalothrin and ddt, although kdr-type nerve insensitivity cannot be discarded as a possible hypothesis. additional research, including development of a kdr specific assay for an. darlingi should be conducted in future studies. our data demonstrates the urgent need to develop local insecticide resistance management and surveillance programs throughout colombia.
Relación entre malaria y el fenómeno de El Ni o - Oscilación del Sur (ENOS). Fase II. Impacto de ENOS sobre la calidad de larvas y adultos y métodos alternativos de captura
William Rojas,Marta Quiones,Juan Zuluaga,Iván Vélez
Iatreia , 2001,
Abstract: En diferentes partes del mundo se ha encontrado una asociación entre ENOS y brotes epidémicos de enfermedades tales como: malaria, dengue y otras transmitidas por vectores. En Colombia Poveda y Rojas presentan evidencias de la asociación entre brotes epidémicos de malaria y ENOS entre 1959 y 1994. El propósito de esta investigación es tratar de explicar la asociación entre brotes epidémicos de malaria y ENOS. En la primera fase (1998-2000) se encontró una correlación significativa entre los casos de malaria y la temperatura, pero no se hallaron asociaciones entre factores entomológicos (densidad y paridad) con malaria o con clima. En esta segunda fase se medirá el efecto del clima, particularmente la temperatura sobre la calidad de los estadios larval y adulto. Además, se evaluarán métodos que sustituyan las capturas con cebo humano y se continuarán los estudios de campo sobre el efecto de ENOS en la densidad de la población de larvas y adultos y las tasas de picadura.
Comparative Genomic Analysis of Clinical Strains of Campylobacter jejuni from South Africa
Beatriz Quiones, Magalie R. Guilhabert, William G. Miller, Robert E. Mandrell, Albert J. Lastovica, Craig T. Parker
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0002015
Abstract: Background Campylobacter jejuni is a common cause of acute gastroenteritis and is also associated with the post-infectious neuropathies, Guillain-Barré and Miller Fisher syndromes. In the Cape Town area of South Africa, C. jejuni strains with Penner heat-stable (HS) serotype HS:41 have been observed to be overrepresented among cases of Guillain-Barré syndrome. The present study examined the genetic content of a collection of 32 South African C. jejuni strains with different serotypes, including 13 HS:41 strains, that were recovered from patients with enteritis, Guillain-Barré or Miller Fisher syndromes. The sequence-based typing methods, multilocus sequence typing and DNA microarrays, were employed to potentially identify distinguishing features within the genomes of these C. jejuni strains with various disease outcomes. Methodology/Principal Findings Comparative genomic analyses demonstrated that the HS:41 South African strains were clearly distinct from the other South African strains. Further DNA microarray analysis demonstrated that the HS:41 strains from South African patients with the Guillain-Barré syndrome or enteritis were highly similar in gene content. Interestingly, the South African HS:41 strains were distinct in gene content when compared to HS:41 strains from other geographical locations due to the presence of genomic islands, referred to as Campylobacter jejuni integrated elements (CJIEs). Only the integrated element CJIE1, a Campylobacter Mu-like prophage, was present in the South African HS:41 strains whereas this element was absent in two closely-related HS:41 strains from Mexico. A more distantly-related HS:41 strain from Canada possessed both integrated elements CJIE1 and CJIE2. Conclusion/Significance These findings demonstrate that CJIEs may contribute to the differentiation of closely-related C. jejuni strains. In addition, the presence of bacteriophage-related genes in CJIE1 may contribute to the genomic diversity of C. jejuni strains. This comparative genomic analysis of C. jejuni provides fundamental information that potentially could lead to improved methods for analyzing the epidemiology of disease outbreaks.
Canales de búsqueda de empleo y duración del desempleo en Colombia
Quiones D.,Mauricio;
Perfil de Coyuntura Económica , 2010,
Abstract: this paper studies the duration of unemployment in colombia and highlights their relationship with the job search channels. to achieve it, nonparametric kaplan-meier and parametric models with weibull function, were estimated. the information was taken from the great household survey in the second quarter of 2008. it found that although the formal channel or traditional channel to search job is not the most widely used, it is the most effective to reducing the duration of unemployment, further of statistical significance is evidence in favor of the colombian labor market rigidities.
Fisiopatología de la Insuficiencia Cardiaca Diastólica
Quiones,Miguel A;
Revista Costarricense de Cardiología , 2009,
Abstract: pathophysiology of diastolic heart failure the principal clinical and pathophysiological characteristics of diastolic heart failure along with intrínsic and extrinsic factors that can induce or worsen it are discussed.
Fisiopatología de la Insuficiencia Cardiaca Diastólica
Miguel A Quiones
Revista Costarricense de Cardiología , 2009,
Abstract: Se discuten las principales características clínicas y fisiopatológicas de la insuficiencia cardiaca diastólica así como los factores intrínsecos y extrínsecos que pueden precipitarla o empeorarla. Pathophysiology of Diastolic Heart Failure The principal clinical and pathophysiological characteristics of diastolic heart failure along with intrínsic and extrinsic factors that can induce or worsen it are discussed.
Canales de búsqueda de empleo y duración del desempleo en Colombia
Mauricio Quiones D.
Perfil de Coyuntura Económica , 2010,
Abstract: El presente documento estudia la duración del desempleo en Colombia y destaca su relación y carácter explicativo con los canales de búsqueda de empleo. Para cumplir el objetivo se realizaron estimaciones no paramétricas tipo Kaplan- Meier, y paramétricas usando la función Weibull, teniendo como insumo la información de la Gran Encuesta Integrada de Hogares, GEIH, en el segundo trimestre del a o 2008. Se encontró que a pesar de que el canal formal no es el más usado, sí es el más efectivo a la hora de disminuir la duración del desempleo, adicionalmente la significancia de los canales surgen como evidencia a favor de las rigideces del mercado laboral colombiano.
Sobre el seminario Ciencia, tecnología y lengua espa ola: la terminología científica en espa ol
Héctor Quiones
Panace@ : Revista de Medicina, Lenguaje y Traducción , 2004,
Abstract:
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