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Search Results: 1 - 10 of 413772 matches for " Luz M. Mu?oz Márquez "
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La agencia y la regulación de la cooperación al desarrollo de la Generalitat de Catalu a
Luz M. Muoz Márquez
Revista de Investigaciones Políticas y Sociológicas (RIPS) , 2011,
Abstract: El presente artículo analiza los cambios en la regulación de la política de cooperación al desarrollo de la Generalitat de Catalunya. A través del análisis de sus instrumentos y de la creación nuevas estructuras institucionales, como la Agencia Catalana de Cooperación al Desarrollo, se busca entender cuáles son los aspectos que han cambiado significativamente en el dise o de la política. El horizonte de análisis es de más de dos décadas, a partir de 1986, cuando se aprueba la primera partida presupuestaria de cooperación al desarrollo, denominada Ayuda al Tercer Mundo. El análisis se basa en el enfoque de la regulación de las políticas públicas.
Updating Known Distribution Models for Forecasting Climate Change Impact on Endangered Species
Antonio-Román Muoz, Ana Luz Márquez, Raimundo Real
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0065462
Abstract: To plan endangered species conservation and to design adequate management programmes, it is necessary to predict their distributional response to climate change, especially under the current situation of rapid change. However, these predictions are customarily done by relating de novo the distribution of the species with climatic conditions with no regard of previously available knowledge about the factors affecting the species distribution. We propose to take advantage of known species distribution models, but proceeding to update them with the variables yielded by climatic models before projecting them to the future. To exemplify our proposal, the availability of suitable habitat across Spain for the endangered Bonelli's Eagle (Aquila fasciata) was modelled by updating a pre-existing model based on current climate and topography to a combination of different general circulation models and Special Report on Emissions Scenarios. Our results suggested that the main threat for this endangered species would not be climate change, since all forecasting models show that its distribution will be maintained and increased in mainland Spain for all the XXI century. We remark on the importance of linking conservation biology with distribution modelling by updating existing models, frequently available for endangered species, considering all the known factors conditioning the species' distribution, instead of building new models that are based on climate change variables only.
Whole blood platelet aggregometry in HIV-infected patients on treatment with abacavir  [PDF]
Rosario Palacios Muoz, Jose A. González-Correa, Josefa Ruiz, Enrique Nu?o, Manuel Márquez, Jose P. de la Cruz, Jesús Santos
Open Journal of Internal Medicine (OJIM) , 2012, DOI: 10.4236/ojim.2012.22013
Abstract: Purpose: To assess platelet activity in HIV-patients with and without antiretroviral therapy (ART), analysing the influence of the presence or absence of ABC in the regimen. Methods: Observational, pilot study, including 30 asymptomatic HIV-patients: 20 on ART for at least 24 weeks and with undetectable HIV viral load - 10 on ABC, 10 on tenofovir (TDF) - and 10 na?ve patients, and a control group of 10 HIV-negative subjects. No subject was receiving drugs with antiagregant activity. Platelet activity was assessed by measuring time-dependent platelet aggregometry (electrical impedance on fasting whole blood), induced by ADP (1.25, 2.5 μM), collagen (0.5, 1 μg/mL), arachidonic acid (100, 200 μM), and U46619 (receptor agonist of the tromboxano A2) (1.25, 2.5 μM). Statistic program: SPSS, 16.0. Results: Demographic, anthropometric data, and cardiovascular risk factors were similar in all groups, but older age and longer time of HIV infection in the ABC group (50.4 vs 36.1, 34.2 and 42.7 years, respectively; p < 0.05, and 140.3 vs 88.1 and 48.3 months in the two other groups of HIV patients; p < 0.05). Mean CD4 cells count was 564/mm3. Platelet aggregation with exposure to U46619 was higher in the ABC compared with the TDF group (11.1 vs 4.4%; p = 0.007), na?ve patients (11.1 vs 5.7%; p = 0.014), and the HIV-negative group (11.1 vs 6.5%; p = 0.04). These differences remained significant when controlled for age and time of HIV infection. Conclusions: ABC increases platelet aggregability possibly in relation with the receptor of tromboxano. Wider studies are needed to confirm this hypothesis.
Evaluación de factores genéticos y ambientales en los componentes del síndrome metabólico en una muestra de jóvenes
Angélica M Muoz,Gabriel Bedoya-Berrio,Gloria M Agudelo,Luz M Manjares
Actualidades Biológicas , 2012,
Abstract:
Resultados de la esclerectomia profunda no perforante en el tratamiento del glaucoma inflamatoria al a?o de seguimiento
Arruabarrena,C.; Muoz-Negrete,F.J.; Márquez,C.; Rebolleda,G.;
Archivos de la Sociedad Espa?ola de Oftalmología , 2007, DOI: 10.4321/S0365-66912007000800006
Abstract: purpose: to assess the efficacy and safety of nonpenetrating deep sclerectomy in uveitic glaucoma. methods: in this observational retrospective trial, 6 eyes with inflammatory glaucoma underwent a nonpenetrating deep sclerectomy and a reticulated hyaluronic acid implant. the minimal follow-up period was 12 months. results: at 12 months, the complete success rate (defined as an iop higher than 5 and lower than 21 mmhg without medication) was 66.67% and the qualified success rate was 100%. the mean postoperative iop at 12 months was 16.67 mmhg (sd: 3.26), and the mean iop reduction was 23.00 mmhg (sd:13.75) (p= 0.027). the mean number of antiglaucoma medications required was reduced from 2.67 (sd: 0.52) before surgery to 0.50 (sd: 0.84) one year after surgery (p= 0.038). no change on visual acuity was observed. complications included one case of hyphema and one case of bleb encapsulation. conclusions: nonpenetrating deep sclerectomy in this preliminary study, deep sclerectomy was efficacious and had few postoperative complications, so it can be an alternative in the management of uveitic glaucoma.
Evaluación de oxidación bacteriana de sulfuros con Acidithiobacillus ferrooxidans mediante pruebas de FTIR y difracción de rayos X Evaluating Acidithiobacillus ferrooxidans bacterial oxidation of sulphur compounds using FTIR and X-ray diffraction assays
Muoz Alexandra,Márquez Marco A.,Montoya Olga I.,Ruiz Orlando
Revista Colombiana de Biotecnología , 2003,
Abstract: Una cepa bacteriana nativa con capacidad de oxidar hierro ferroso y compuestos del azufre fue aislada a partir de efluentes y material de la mina de oro La Maruja, en el municipio de Marmato (Caldas), la cual fue identificada bioquímicamente como Acidithiobacillus ferrooxidans. Esta cepa fue evaluada en su capacidad de oxidar concentra-dos de sulfuros metálicos a dos diferentes concentraciones de pulpa y dos tama os de partícula. Después de 15 días de biooxidación de los sulfuros se observó que, efectivamente, la bacteria mostró acción catalizadora sobre el proce-so de disolución del mineral. Palabras clave: biooxidación; biolixiviación; A. ferrooxidans; sulfuros metálicos A native bacterial strain capable of oxidising ferrous iron and sulphur compounds was isolated from effluent and material from the La Maruja gold mine in the municipality of Marmato (Caldas); this was biochemically identified as being Acidithiobacillus ferrooxidans. This strain's ability to oxidise metallic sulphide concentrates having two differ-ent pulp proportions and two particle sizes was evaluated. Sulphide bio-oxidation was observed after 15 days showing this strain's catalytic action on the mineral break-down process. Key words: bio-oxidation; bio-leaching; A. ferrooxidans; sulphides
Resultados de la esclerectomia profunda no perforante en el tratamiento del glaucoma inflamatoria al a o de seguimiento Results of nonpenetrating deep sclerectomy in inflammatory glaucoma: one year follow up
C. Arruabarrena,F.J. Muoz-Negrete,C. Márquez,G. Rebolleda
Archivos de la Sociedad Espa?ola de Oftalmología , 2007,
Abstract: Objetivo: Determinar la eficacia y seguridad de le esclerectomía profunda no perforante en el manejo quirúrgico del glaucoma inflamatorio. Métodos: Estudio observacional retrospectivo que evalúa una muestra de 6 ojos diagnosticados de glaucoma inflamatorio a los que se les realiza una esclerectomía profunda no perforante con implante de ácido hialurónico reticulado, con un seguimiento postoperatorio de 12 meses. Resultados: Tras un seguimiento medio de 12 meses, el 66,67% de los casos presenta un éxito completo (PIO entre 5 y 21 mmHg sin necesidad de fármacos) y el 100% éxito parcial. La tensión media al a o fue de 16,67 mmHg (DE: 3,26), siendo este descenso medio (23,00 mmHg, DE: 13,75 mmHg) estadísticamente significativo (p = 0,027). El número medio de fármacos hipotensores para controlar la presión intraocular se redujo significativamente desde 2,67 (DE: 0,52) a 0,50 (DE: 0,84) a los doce meses de seguimiento. No se observó pérdida de agudeza visual en ningún caso. Las únicas complicaciones postoperatorias observadas fueron un caso de hifema y un quiste de tenon. Conclusiones: La esclerectomía profunda no perforante en este estudio preliminar muestra una elevada eficacia y escasas complicaciones postoperatorias, por lo que podría ser una alternativa en el manejo quirúrgico del glaucoma inflamatorio. Purpose: To assess the efficacy and safety of nonpenetrating deep sclerectomy in uveitic glaucoma. Methods: In this observational retrospective trial, 6 eyes with inflammatory glaucoma underwent a nonpenetrating deep sclerectomy and a reticulated hyaluronic acid implant. The minimal follow-up period was 12 months. Results: At 12 months, the complete success rate (defined as an IOP higher than 5 and lower than 21 mmHg without medication) was 66.67% and the qualified success rate was 100%. The mean postoperative IOP at 12 months was 16.67 mmHg (SD: 3.26), and the mean IOP reduction was 23.00 mmHg (SD:13.75) (p= 0.027). The mean number of antiglaucoma medications required was reduced from 2.67 (SD: 0.52) before surgery to 0.50 (SD: 0.84) one year after surgery (p= 0.038). No change on visual acuity was observed. Complications included one case of hyphema and one case of bleb encapsulation. Conclusions: Nonpenetrating deep sclerectomy in this preliminary study, deep sclerectomy was efficacious and had few postoperative complications, so it can be an alternative in the management of uveitic glaucoma.
Transferencia analógica desde la perspectiva de la ciencia cognitiva: una revisión
Marco Antonio Pulido Rull,Lorena Lavín Pérez-Palacios,Carla Márquez Muoz
Ense?anza e Investigación en Psicología , 2006,
Abstract: El propósito de esta revisión es presentar algunos de estudios relevantes, generados por la ciencia cognitiva, en la literatura experimental sobre fenómenos de transferencia analógica. En síntesis, los estudios han mostrado que la transferencia se ve impedida por la separación temporal entre el ejercicio de práctica y el ejercicio meta. Cambios contextuales entre la solución de ambos problemas también dificultan la aparición del fenómeno. Los experimentos han mostrado que puede haber una tendencia a repetir una solución previa en nuevos problemas, y que dicha tendencia suele basarse en elementos superficiales, descartando factores estructurales de mayor relevancia. La investigación sugiere que las variables que dificultan la transferencia pueden diluirse con una práctica extensiva que destaque los elementos estructurales similares entre los problemas de práctica. La selección de estrategias de solución basada en dichos elementos podría favorecerse con las contingencias de reforzamiento adecuadas.
Variabilidad genética de Hartón del Valle mediante RAM
Piedrahíta,Ana M; Posso,Andrés; Muoz,Jaime E; álvarez,Luz A;
Acta Agronómica , 2008,
Abstract: harton del valle (hv) breed belong to the seven creole breeds of the colombian bovine livestock, according to fao criteria it is considered as vulnerable. to study its genetical variability, 33 hv animals and three and 3 animals of holstein breed as a external control were sampled. simples of dna were isolated using the salting out method and ram (random amplified microsatellites) technique was used. cga, cca, tg and ct primers were used. the mean value of expected heterocigozity was 0.26 and fst fue 0.39 ± 0.03. using dice-nei li index and upgma clustering method, two groups were distinguished: the first one integrated for two conservation herds and other one by tour faros that have been sharing breeding bulls.
La enfermera clínica y las relaciones con los estudiantes de enfermería: un estudio fenomenológico
Santos, Márcia Fernandes dos;Merighi, Miriam Aparecida Barbosa;Muoz, Luz Angélica;
Texto & Contexto - Enfermagem , 2010, DOI: 10.1590/S0104-07072010000100013
Abstract: this study's trajectory was directed at understanding the living experience of clinical nurses who work with nursing students while they develop their clinical internship at a public hospital, in santiago, chile. a qualitative investigation was carried out using a phenomenological approach. clinical nurses were interviewed and based on their discourses and concrete real experiences, twou experience categories were identified and interpreted according to martin heidegger's philosophical reference. from the categories which emerged from their responses, two stand out concerning this article: the being-there in the relationship with students, and the feeling of being a model to students, which will be presented in this study with the objective of encouraging reflection on the importance of these professionals' participation in educating future nursing professionals and phenomenology as a basis for delivering comprehensive care.
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