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Search Results: 1 - 10 of 198161 matches for " Visitación "
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La Competencia Cultural como referente de la Diversidad Humana en la Prestación de Servicios y la Intervención Social
Martínez,Manuel Francisco; Martínez,Julia; Calzado,Visitación;
Intervención Psicosocial , 2006, DOI: 10.4321/S1132-05592006000300007
Abstract: the important demographic changes that are taking place in the spanish society have challenged services providers and organizations to consider cultural diversity as a priority. the purpose of this article is to present a model that will be helpful in providing culturally competent services. the concept of cultural competence is discussed and analyzed in the different levels of the social intervention.
Las Euglenófitas en las Tablas de Daimiel como ejemplo de las limitaciones de los indicadores biológicos de la degradación ambiental
Rojo, Carmen,Segura, Matilde,Lionard, Marie,Conforti, Visitación
Anales del Jardín Botánico de Madrid , 2005,
Abstract: Las Tablas de Daimiel National Park is a semiarid, hypertrophic wetland located in La Mancha (Ciudad Real, Central Spain). During the period 1996-2002 we carried out monthly samplings at three sites of Las Tablas. Thirty five taxa of Euglenophytes of the genera Astasia (1 taxon), Euglena (15), Lepocinclis (6), Phacus (9), and Trachelomonas (4) were identified. Six taxa are new records for Spain. Abundance, species richness, species groups and absolute and relative biomass of Euglenophytes widely fluctuated spatio-temporally in Las Tablas, without any statistically significant relationship (P > 0.05) with organic carbon (either particulate or dissolved), which has been long considered the main factor controlling the occurrence and abundance of Euglenophytes. The same lack of relationship was observed for other nutrients, such as ammonia, soluble reactive phosphorus and total nitrogen and phosphorus. Our results challenge the role of Euglenophytes for assessing environmental degradation in hypertrophic ecosystems, a topic of increasing interest in view of the newly implemented European Water Framework Directive and its proposals for biological monitoring. However, these results might invigorate ecological studies on Euglenophytes, still in its infancy unlike in other algal groups. El Parque Nacional Las Tablas de Daimiel es un humedal semiárido hipertrófico, situado en la llanura manchega (Ciudad Real). Entre 1996 y 2002 se realizaron muestreos mensuales en tres lugares representativos del Parque, en los que se identificaron 35 táxones diferentes de Euglenófitas: 1 del género Astasia, 15 de Euglena, 6 de Lepocinclis, 9 de Phacus y 4 de Trachelomonas, de los cuales 6 son citas nuevas para Espa a. En este trabajo se ofrecen la descripción y una amplia iconografía de los mismos. Densidad, riqueza específica, grupos de especies y biovolúmenes absoluto y relativo fluctuaron mucho espacial y temporalmente en el humedal, sin manifestar relación alguna estadísticamente significativa (P > 0,05) con el carbono orgánico (tanto particulado como disuelto) presente en el agua, considerado desde antiguo como el principal factor que condiciona la presencia y la abundancia de las Euglenófitas, ni con otros nutrientes (amonio, ortofosfato, nitrógeno y fósforo totales). Estos resultados limitan en buena medida el uso de estos organismos como indicadores de la degradación ambiental en ecosistemas hipertróficos, de renovado interés por la puesta en marcha de la Directiva Europea del Agua, que contempla también la calidad biológica, y podrían contribuir a impulsar el estudio e
Fitoplancton del Parque Nacional de las Tablas de Daimiel. I. Las euglenofitas
Conforti, Visitación,Ortega-Mayagoitia, Elizabeth,Rojo, Carmen
Anales del Jardín Botánico de Madrid , 1999,
Abstract: Las Tablas de Daimiel is one of the most important wetlands in the Iberian Península. The increase of water contamination is producing obvious eutrophication. Monthly water samples were taken during 1996 and 1997 at five places - both from channels and shallow water (tablas). 18 taxa of Euglenophyta were found, two of them had been found before in Las Tablas de Daimiel (Astasia sp. and Euglena acus). Nine species are new records for this wetland (E. acilis, E. polymorpha, Lepocinclis ovum var. dimidio-minor. Phacus brevicaudatus, P. pyrum, P. skujae, Trachelomonas armata, T. abrupta and T. volvocinopsis); six species are new records for Spain (E. agilis var. piriformis, E. clara, E. oxyuris var. oxyuris, E. splendens, L. ovum var. globula, and P. brachykentron), and one species is new record for Europe (T. sculpta). The richness of Euglenophyta has increased conspicuously (1 species in 1975, 8 species in 1992-1993 and 18 species in 1996-1997). Moreover, the increasing water level from 19% has reduced the Euglenophyta density and these populations have simultaneously spread throughout the whole Park. The fluctuation seen in the Euglenophyte populations of the Tablas de Daimiel is not a response to contamination events, but the result of a the long eutrophication process endured by these wetlands. Las Tablas de Daimiel, una de las zonas húmedas más importantes de la Península Ibérica, sufre un claro proceso de eutrofización debido al aumento de la contaminación. Durante los a os 1996 y 1997 se tomaron muestras mensualmente en cinco zonas que corresponden a canales y a zonas de aguas someras -tablas-, y se identificaron 18 táxones pertenecientes a Euglenophyta. Una especie fue del género Astasia, siete de Euglena, dos de Lepocinclis, cuatro de Phacus y otras cuatro de Trachelomonas. Seis de ellas son nuevas citas para Espa a, y una lo es para Europa. Se observó un aumento en la riqueza de euglenofitas (una especie en 1975, ocho en 1992- 1993 y 18 en l996-1997), a la par que una ampliación de su distribución en el Parque. Podemos afirmar que hay relación entre el incremento de contaminación orgánica en Las Tablas de Daimiel y los táxones encontrados. Además, la dinámica de las poblaciones sugiere que su presencia en el humedal no es una respuesta a perturbaciones puntuales, sino una consecuencia del largo proceso de eutrofización que sufre esta zona húmeda.
Estudio del estrés oxidativo en 2 cepas de Euglena gracilis
Rocchetta,Iara; Ruiz,Laura; Conforti,Visitación; Ríos de Molina,María del Carmen;
Revista Cubana de Investigaciones Biom??dicas , 2003,
Abstract: studies of oxidative stress were conducted in 2 strains of euglena gracilis (mat and utex). the cultures were subjected to different concentrations of hexavalent chromium. the superoxide dismutase activity, the amount of total lipids and the concentration of clorophyll were determined and the respective growth curves were obtained. the results obtained show that chromium besides affecting the production of lipids, clorophyll and cellular growth, increases the superoxide dismutase activity. significant differences are observed between both strains.
Estudio del estrés oxidativo en 2 cepas de Euglena gracilis
Iara Rocchetta,Laura Ruiz,Visitación Conforti,María del Carmen Ríos de Molina
Revista Cubana de Investigaciones Biom??dicas , 2003,
Abstract: Se realizaron estudios de estrés oxidativo en 2 cepas de Euglena gracilis (MAT y UTEX). Se sometieron los cultivos a diferentes concentraciones de cromo hexavalente. Se determinó la actividad superóxido dismutasa, la cantidad de lípidos totales, la concentración de clorofila a y se realizaron las respectivas curvas de crecimiento. Los resultados obtenidos demuestran que el cromo, además de afectar la producción de lípidos, clorofila y crecimiento celular, aumenta la actividad superóxido dismutasa y se observan notables diferencias entre ambas cepas. Studies of oxidative stress were conducted in 2 strains of Euglena gracilis (MAT and UTEX). The cultures were subjected to different concentrations of hexavalent chromium. The superoxide dismutase activity, the amount of total lipids and the concentration of clorophyll were determined and the respective growth curves were obtained. The results obtained show that chromium besides affecting the production of lipids, clorophyll and cellular growth, increases the superoxide dismutase activity. Significant differences are observed between both strains.
Incidencia de peritonitis por gérmenes resistentes a oxacilina-cefazolina en diálisis peritoneal
Domínguez Tristancho,Carmen; Machado Guzmán,Visitación; Márquez Benítez,Jesús; Gómez Ainsua,Cristina;
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2005, DOI: 10.4321/S1139-13752005000300005
Abstract: coagulase-negative staphylococcus and staphylococcus aureus continue to the germs most often responsible for peritonitis in patients treated using peritoneal dialysis. a variable portion of these germs have developed resistance to antibiotics such as oxacillin, cephazolin and glycopeptides. a total of 75 cases of peritonitis occurring in the last 5 years in 38 patients were analysed, to determine the percentage of gram positive germs resistant to oxacillin-cephazolin and to describe the evolution of these cases of peritonitis with empirical treatment with teicoplanine-cephtazidime, investigating the distinctive characteristics with respect to cases of peritonitis caused by germs that are sensitive to these antibiotics. the results of the cultures were: sterile 15%, coagulase negative staphylococcus 37%, staphylococcus aureus 8%, gram negatives 23%, other gram positives 13% and others 4%. no resistance to teicoplanine was found in any of the gram positive germs, nor to cephtazidime in the gram negatives; however, 50% of staphylococcus were resistant to oxacillin and cephazolin. the percentage curation rate was over 90%, it not being possible to determine any distinguishing characteristics. in conclusion, the high curation rate in gram positive peritonitis treated with teicoplanine-cephtazidime is a further argument in favour of validating this treatment as the choice in peritoneal dialysis peritonitis.
Incidencia de peritonitis por gérmenes resistentes a oxacilina-cefazolina en diálisis peritoneal Incidence of peritonitis caused by oxacillin-cephazolin resistant germs in peritoneal dialysis
Carmen Domínguez Tristancho,Visitación Machado Guzmán,Jesús Márquez Benítez,Cristina Gómez Ainsua
Revista de la Sociedad Espa?ola de Enfermería Nefrológica , 2005,
Abstract: Los estafilococos coagulasa-negativos y dorados siguen siendo los germenes responsables mas frecuentes de las peritonitis en pacientes tratados con diálisis peritoneal. Una porción variable de estos gérmenes han desarrollado resistencia a antibióticos tales como oxacilina, cefazolina y glicopeptidos. Se analizan un total de 75 peritonitis acontecidas durante los 5 últimos a os en 38 pacientes, para determinar el porcentaje de gérmenes gram positivos resistentes a oxacilina-cefazolina y describir la evolución de dichas peritonitis con tratamiento empírico con teicoplanina-ceftazidima, investigando las características distintivas con respecto a las causadas por gérmenes sensibles a estos antibióticos. Los resultados de los cultivos fueron: esteriles 15%, estafilococo coagulasa-negativo 37%, estafilococo dorado 8%, gram negativos 23%, otros gram positivos 13% y otros 4%. No se observó resistencia a la teicoplanina en ninguno de los gérmenes gram positivos, ni a la ceftazidima en los gram negativos; sin embargo, un 50% de estafilococos fue resistente a la oxacilina y cefazolina. El porcentaje de curación fue superior al 90% no permitiendo distinguir características entre ellas. En conclusión, la alta tasa de curación de las peritonitis por gram positivos tratados con teicoplanina-ceftazidima se suman a los argumentos a favor de validar este tratamiento como elección en las peritonitis en diálisis peritoneal. Coagulase-negative Staphylococcus and Staphylococcus aureus continue to the germs most often responsible for peritonitis in patients treated using peritoneal dialysis. A variable portion of these germs have developed resistance to antibiotics such as oxacillin, cephazolin and glycopeptides. A total of 75 cases of peritonitis occurring in the last 5 years in 38 patients were analysed, to determine the percentage of gram positive germs resistant to oxacillin-cephazolin and to describe the evolution of these cases of peritonitis with empirical treatment with teicoplanine-cephtazidime, investigating the distinctive characteristics with respect to cases of peritonitis caused by germs that are sensitive to these antibiotics. The results of the cultures were: sterile 15%, coagulase negative Staphylococcus 37%, Staphylococcus aureus 8%, gram negatives 23%, other gram positives 13% and others 4%. No resistance to teicoplanine was found in any of the gram positive germs, nor to cephtazidime in the gram negatives; however, 50% of Staphylococcus were resistant to oxacillin and cephazolin. The percentage curation rate was over 90%, it not being possible to determine
Brote de parotiditis vírica en un colegio de Bizkaia en 2006
Millán Ortuondo,Eduardo; González Sancristóbal,Itxaso; López Soria,Leyre; Echevarría Mayo,Juan Emilio; Castro Laiz,Visitación de; Muniozguren Agirre,Nerea;
Revista Espa?ola de Salud Pública , 2007, DOI: 10.1590/S1135-57272007000100005
Abstract: background: outbreaks of parotiditis have recently been recorded in spain and in other developed countries. the possible reasons currently under consideration are the low degree of immunization coverage among the populations involved and/or the low degree of effectiveness of the vaccine strains employed. this study describes one outbreak of parotiditis having occurred in bizkaia and assesses the effectiveness of the vaccine strains and the usefulness of the diagnostic tests currently used. methods: those cases having compatible clinical symptoms and an epidemiological link within the period under study (february-may 2006) were labeled as cases. blood samples were taken to study igm and igg and saliva for genotype and rna detection. the immunization status and the strain used were found through the vaccine distribution records. a univariate analysis was conducted on the data and relative risks calculated according to the vaccine strains used. results: a total of 63 cases were detected, 52 being students from one school. fifty percent were 9-13 years of age. a total of 88.5% of the cases detected at the school had been properly immunized. the igm sensitivity was 9% , pcr sensitivity being 37%. the relative risk of those students immunized with an initial dose of rubini strain as compared to those immunized with jeryl-lynn strain was 3.8 (95% ci:2.27-6.49). conclusions: the high degree of immunization coverage does not prevent outbreaks from occurring in places having a high degree of exposure. the igm reveals itself to be sensitive to a very small degree for the diagnosis of parotiditis. it seems necessary that the current immunization strategies and diagnostic methods be reconsidered.
Factores que influyen sobre la aparición de infecciones hospitalarias en los pacientes de cuidados intensivos
Llanos-Méndez,Aurora; Díaz-Molina,Carmen; Barranco-Quintana,José Luis; García-Ortúzar,Visitación; Fernández-Crehuet,Rafael;
Gaceta Sanitaria , 2004, DOI: 10.1590/S0213-91112004000300006
Abstract: objective: the accumulation of risk factors in hospitalized patients is one of the elements contributing to the increase in the frequency of nosocomial infection in the intensive care unit (icu). our aim was to identify nosocomial infection risk factors in the icu of our hospital. methods: we performed a prospective cohort study of 1134 patients admitted to the icu for at least 24 hours in 2001. the patients were followed-up for 48 hours after leaving the icu. multivariate cox regression analysis was used to identify risk factors. results: the intrinsic risk factors identified were the principal diagnosis motivating admission to the icu, traumatic brain injury and renal insufficiency. invasive techniques that were independently associated with nosocomial infection (from high to low risk) were urinary catheter, tracheostomy, mechanical ventilation, swan-ganz catheter, and total parenteral nutrition. conclusions: although endogenous risk factors, which cannot be modified, represented the most important associated factors, steps to reduce nosocomial infections should concentrate on the following exogenous risk factors: urinary catheter, tracheostomy, mechanical ventilation, swan-ganz catheters, and total parenteral nutrition.
DIOL Triterpenes Block Profibrotic Effects of Angiotensin II and Protect from Cardiac Hypertrophy
Ruben Martín, Maria Miana, Raquel Jurado-López, Ernesto Martínez-Martínez, Nieves Gómez-Hurtado, Carmen Delgado, Maria Visitación Bartolomé, José Alberto San Román, Claudia Cordova, Vicente Lahera, Maria Luisa Nieto, Victoria Cachofeiro
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0041545
Abstract: Background The natural triterpenes, erythrodiol and uvaol, exert anti-inflammatory, vasorelaxing and anti-proliferative effects. Angiotensin II is a well-known profibrotic and proliferative agent that participates in the cardiac remodeling associated with different pathological situations through the stimulation and proliferation of cardiac fibroblasts. Therefore, the aim of the study was to investigate the preventive effects of the natural triterpenes erythrodiol and uvaol on the proliferation and collagen production induced by angiotensin II in cardiac myofibroblasts. Their actions on cardiac hypertrophy triggered by angiotensin II were also studied. Methodology/Principal Findings The effect of erythrodiol and uvaol on angiotensin II-induced proliferation was evaluated in cardiac myofibroblasts from adult rats in the presence or the absence of the inhibitors of PPAR-γ, GW9662 or JNK, SP600125. The effect on collagen levels induced by angiotensin II was evaluated in cardiac myofibroblasts and mouse heart. The presence of low doses of both triterpenes reduced the proliferation of cardiac myofibroblasts induced by angiotensin II. Pretreatment with GW9662 reversed the effect elicited by both triterpenes while SP600125 did not modify it. Both triterpenes at high doses produced an increase in annexing-V binding in the presence or absence of angiotensin II, which was reduced by either SP600125 or GW9662. Erythrodiol and uvaol decreased collagen I and galectin 3 levels induced by angiotensin II in cardiac myofribroblasts. Finally, cardiac hypertrophy, ventricular remodeling, fibrosis, and increases in myocyte area and brain natriuretic peptide levels observed in angiotensin II-infused mice were reduced in triterpene-treated animals. Conclusions/Significance Erythrodiol and uvaol reduce cardiac hypertrophy and left ventricle remodeling induced by angiotensin II in mice by diminishing fibrosis and myocyte area. They also modulate growth and survival of cardiac myofibroblasts. They inhibit the angiotensin II-induced proliferation in a PPAR-γ-dependent manner, while at high doses they activate pathways of programmed cell death that are dependent on JNK and PPAR-γ.
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