560 research outputs found
La enseñanza del fútbol sala en la formación de futuros profesionales de la Educación Física: la aproximación entre la teoría y la práctica
El trabajo describe una actividad realizada en la asignatura de fútbol sala del curso de formación de profesorado en Educación Física de la Universidade de Caxias do Sul (UCS) en Brasil. Los estudiantes impartieron clases de fútbol sala para niñas con edad entre los 11 y los 14 años en los centros de enseñanza de la ciudad de Caxias do Sul y su región. El objetivo de la actividad fue proporcionar a los futuros profesionales un mayor acercamiento a la realidad con la cual se deberán enfrentar en un futuro muy cercano, produciendo una formación más significativa y relevante. Al final del curso, después de los 18 partidos semanales previstos, más las clases para las chicas, los estudiantes respondieron un pequeño cuestionario adaptado en la escala de Likert sobre la importancia de la experiencia práctica para su formación. Los resultados determinaron que 7% de los alumnos del curso consideraron que la experiencia de enseñanza con las chicas presentó poca importancia para su formación como profesionales de Educación Física. Por otra parte 16% han considerado importante la actividad práctica. 37% dijeron que la experiencia fue bastante importante y 40% han respondido que la actividad fue de fundamental importancia. Ninguno contestó que la actividad fue nada importante. Así, concluimos que la utilización de esa metodología y experiencia didáctica ha permitido la reducción de las discrepancias entre la teoría y práctica existentes en las asignaturas de carácter práctico en los cursos de formación del profesorado
Proyección internacional de la investigación de Extremadura (1990-2002)
An overview is given of research in the Extremadura Autonomous Community (EAC) on the basis of the study of different parameters in different thematic domains. To this end, an analysis is made of the intensity of technological Research and Development (R&D) on the one hand, and of the scientific output in the period 1990-2002, using the ISI databases. Socioeconomic and bibliometric indicators are used to show the relationship between the resources invested in R&D and the results obtained, and the positioning of the EAC in different geographical contexts. The EAC is found to follow patterns of behaviour and trends that are similar to those of other geographical domains, and with a quite acceptable level of return on investment in R&D.Se pretende proporcionar una visión de la investigación en la Comunidad Autónoma de Extremadura (CAE) desde diferentes parámetros objeto de estudio y en diferentes dominios temáticos. Con este fin se analiza, por un lado, la intensidad de la Investigación y Desarrollo Tecnológico (I+D) y, por otro, la producción científica en el periodo 1990-2002, utilizándose para ello las bases de datos del ISI. Se utilizan indicadores socioeconómicos e indicadores bibliométricos para mostrar la relación entre los recursos invertidos en I+D y los resultados obtenidos, así como el posicionamiento de la CAE en diferentes ámbitos geográficos. Los resultados obtenidos muestran que la CAE sigue patrones de comportamiento y tendencias similares a otros dominios geográficos, constatando que la rentabilidad del sistema de I+D es bastante aceptable
Laboratory evaluation of the compatibility of a new attractant contaminant device ciontaining Metarhizium anisopliae with Ceratitis capitata sterile males
[EN] Laboratory experiments were conducted to evaluate the compatibility of using the entomopathogenic fungus Metarhizium anisopliae, to be dispensed in a new attractant contaminant device (ACD), jointly with sterilized Ceratitis capitata males, as an integrated approach to control this major pest. The exposure of sterile Vienna 8 (V8) strain and wild type (WT) males to the contaminating part (infective dish) of the ACD showed similar susceptibility levels to the fungal strain (LT50 value of 4.52 and 4.72 days, respectively). Sterile V8 males were significantly less attracted to the infective dish (18.4%) than WT males (28.5%).
As the success of Sterile Insect Technique (SIT) heavily relies on the mating success of sterile males in the field, mating performance of infected males was assessed. Around 85% of the females were mated, independently of the male strain and treatment (fungus-treated or untreated males) indicating that mating performance was unaffected by the fungus under laboratory conditions. Females showed a greater tendency to remate if previously mated to fungus-treated males, either V8 or WT.
Our data suggest that this M. anisopliae based-ACD does not impair the performance of C. capitata sterile males and, therefore, it could be used combined with area wide SIT-based programs, providing that these results are validated in field conditions. The implications of this combined strategy to control C. capitata are discussed. (C) 2014 Elsevier Inc. All rights reserved.This work was partially supported by the "Comision Interministerial de Ciencia y Tecnologia" (CICYT, Spain) (Grant: AGL2006-13346-C02-02).San Andrés Aura, V.; Ayala Mingol, I.; Abad Payá, MDC.; Primo Millo, J.; Casteñera, P.; Moya Sanz, MDP. (2014). Laboratory evaluation of the compatibility of a new attractant contaminant device ciontaining Metarhizium anisopliae with Ceratitis capitata sterile males. Biological Control. 72:54-61. https://doi.org/10.1016/j.biocontrol.2014.02.007S54617
Variaciones de riesgo en valores de tensión arterial en pacientes hipertensos durante procedimientos odontológicos
RESUMENIntroducción: Las variaciones de Tensión Arterial (TA) de origen fisiológico son frecuentes; sin embargo, los procedimientos durante la consulta odontológica podrían generar variaciones a valores de riesgo de TA que pueden alterar el estado sistémico, o generar complicaciones médicas que comprometen la integridad del paciente. Objetivo: Identificar factores que generan variaciones de riesgo de la Tensión Arterial durante los procedimientos odontológicos en pacientes hipertensos y no hipertensos. Materiales y métodos: Se diseñó un estudio observacional descriptivo, en 108 pacientes. Se evaluaron tanto hipertensos como no hipertensos, incluidos por un muestreo probabilístico por conglomerados; se evaluaron variables sociodemográficas, presión arterial antes, durante y después del procedimiento, factores de riesgo cardiovascular y aquellas dependientes del procedimiento. Los datos se procesaron en el programa SPSS 21, utilizando medidas de tendencia central y dispersión, desviación estándar (DE) e intervalos de confianza (IC), frecuencias, chi 2, T test, diferencia de medias, ANOVA de una vía y medidas repetidas. Resultados: La edad media fue 62,3 años con DE 12,5 años; 42(38,9%) fueron no hipertensos y 66(61,1%) hipertensos. Las variaciones de presión sistólica mayor a 20mmHg y diastólica mayor a 10mmHg se presentaron en mayor porcentaje en los hipertensos con control errático. Así mismo las variaciones fueron superiores en mujeres y en procedimientos sin uso de anestésico. Según el tipo de hipertensión, se encontraron diferencias entre el grupo de sanos con los grupos control errático, mal control y sin control. Al aplicar un modelo lineal de medidas repetidas, se encontraron diferencias en las tres mediciones en los diferentes tipos de hipertensión. Conclusiones: Los factores relacionados a variaciones de riesgo fueron el control errático, sexo femenino y duración del procedimiento.Palabras Clave: Hipertensión; Odontología; Tensión Arterial. Risk changes in blood pressure in hypertensive patients during dental proceduresABSTRACTIntroduction: Physiologic changes in blood pressure are frequent, nevertheless dental procedures could trigger an increase in blood pressure, which may alter the state or even generate systemic vascular injury or medical complications, that compromise patient integrity. Objectives: To identify factors, which produce risk variations of blood pressure levels during dental procedures in hypertensive and no hypertensive patients. Materials and Methods: A descriptive study was made in 108 patients; including hypertensive and non-hypertensive patients. Sociodemographic variables were assessed, blood pressure values; before, during and after procedure, cardiovascular risk factors and those dependent of the procedure. Patients were selected using the cluster probability method. The data were processed at SPSS 21, using central tendency measures and dispersion, standard deviation and confidence interval, frequencies, chi2, T test, mean difference, one-way ANOVA and repeated measures. Results: The mean age was 62.3 years with SD 12,5 years, 42 (38.9%) without hypertension and 66(61.1%) hypertensive patients. Changes in systolic pressure greater than 20mmHg in systolic and 10mmHg in diastolic, was present in greater percentage of hypertensive patients with erratic control, in women and procedures without the use of anesthetic. Depending on the type of hypertension, differences were found between the group of healthy control, erratic control group, poorly controlled and uncontrolled group. By applying a linear model repeated measures, we found differences in the measurements of arterial pressure in different types of hypertension. Conclusions: The factors related with risk variations in blood pressure occurred in erratic control hypertension patients, women and duration of the procedure.Keywords: Hypertension, Arterial pressure, Dentist. Forma de citar: Aranzazu-Moya GC, Delgado Jaimes RY, Pieschacón Gutirrez MP. Variaciones de riesgo en valores de tensión arterial en pacientes hipertensos durante procedimientos odontológicos. rev.univ.ind.santander.salud 2014; 46(2): 137-145
Variaciones de riesgo en valores de tensión arterial en pacientes hipertensos durante procedimientos odontológicos
RESUMENIntroducción: Las variaciones de Tensión Arterial (TA) de origen fisiológico son frecuentes; sin embargo, los procedimientos durante la consulta odontológica podrían generar variaciones a valores de riesgo de TA que pueden alterar el estado sistémico, o generar complicaciones médicas que comprometen la integridad del paciente. Objetivo: Identificar factores que generan variaciones de riesgo de la Tensión Arterial durante los procedimientos odontológicos en pacientes hipertensos y no hipertensos. Materiales y métodos: Se diseñó un estudio observacional descriptivo, en 108 pacientes. Se evaluaron tanto hipertensos como no hipertensos, incluidos por un muestreo probabilístico por conglomerados; se evaluaron variables sociodemográficas, presión arterial antes, durante y después del procedimiento, factores de riesgo cardiovascular y aquellas dependientes del procedimiento. Los datos se procesaron en el programa SPSS 21, utilizando medidas de tendencia central y dispersión, desviación estándar (DE) e intervalos de confianza (IC), frecuencias, chi 2, T test, diferencia de medias, ANOVA de una vía y medidas repetidas. Resultados: La edad media fue 62,3 años con DE 12,5 años; 42(38,9%) fueron no hipertensos y 66(61,1%) hipertensos. Las variaciones de presión sistólica mayor a 20mmHg y diastólica mayor a 10mmHg se presentaron en mayor porcentaje en los hipertensos con control errático. Así mismo las variaciones fueron superiores en mujeres y en procedimientos sin uso de anestésico. Según el tipo de hipertensión, se encontraron diferencias entre el grupo de sanos con los grupos control errático, mal control y sin control. Al aplicar un modelo lineal de medidas repetidas, se encontraron diferencias en las tres mediciones en los diferentes tipos de hipertensión. Conclusiones: Los factores relacionados a variaciones de riesgo fueron el control errático, sexo femenino y duración del procedimiento.Palabras Clave: Hipertensión; Odontología; Tensión Arterial. Risk changes in blood pressure in hypertensive patients during dental proceduresABSTRACTIntroduction: Physiologic changes in blood pressure are frequent, nevertheless dental procedures could trigger an increase in blood pressure, which may alter the state or even generate systemic vascular injury or medical complications, that compromise patient integrity. Objectives: To identify factors, which produce risk variations of blood pressure levels during dental procedures in hypertensive and no hypertensive patients. Materials and Methods: A descriptive study was made in 108 patients; including hypertensive and non-hypertensive patients. Sociodemographic variables were assessed, blood pressure values; before, during and after procedure, cardiovascular risk factors and those dependent of the procedure. Patients were selected using the cluster probability method. The data were processed at SPSS 21, using central tendency measures and dispersion, standard deviation and confidence interval, frequencies, chi2, T test, mean difference, one-way ANOVA and repeated measures. Results: The mean age was 62.3 years with SD 12,5 years, 42 (38.9%) without hypertension and 66(61.1%) hypertensive patients. Changes in systolic pressure greater than 20mmHg in systolic and 10mmHg in diastolic, was present in greater percentage of hypertensive patients with erratic control, in women and procedures without the use of anesthetic. Depending on the type of hypertension, differences were found between the group of healthy control, erratic control group, poorly controlled and uncontrolled group. By applying a linear model repeated measures, we found differences in the measurements of arterial pressure in different types of hypertension. Conclusions: The factors related with risk variations in blood pressure occurred in erratic control hypertension patients, women and duration of the procedure.Keywords: Hypertension, Arterial pressure, Dentist. Forma de citar: Aranzazu-Moya GC, Delgado Jaimes RY, Pieschacón Gutirrez MP. Variaciones de riesgo en valores de tensión arterial en pacientes hipertensos durante procedimientos odontológicos. rev.univ.ind.santander.salud 2014; 46(2): 137-145
Updating temperature and salinity mean values and trends in the Western Mediterranean: the RADMED project
Postprin
Long-Term Changes in the Water Mass Properties in the Balearic Channels Over the Period 1996–2019
The analysis of a 24-year time series of Conductivity-Temperature-Depth (CTD) casts collected in the Balearic Channels (1996–2019) has allowed detecting and quantifying long-term changes in water mass properties in the Western Mediterranean. For the complete period, the intermediate waters have experienced warming and salting at rates of 1.4°C/100yr and 0.3–0.6/100yr for the Western Intermediate Water, and 1°C/100yr and 0.3–0.4/100yr for the Levantine Intermediate Water. The density of these two water masses has not changed. The deep waters, defined as those denser than 29.1 kg/m3, showed positive trends in temperature, salinity, and density (0.8°C/100yr, 0.2/100yr, and 0.02 kg.m–3/100yr, respectively). The high temporal variability of the upper layer makes the detection of long-term changes more difficult. Nevertheless, combining CTD data with temperature data from the oceanographic station at L’Estartit and simulated data from the NCEP/NCAR reanalysis, it can be established that the Atlantic Water increased its temperature at a rate of 2.1–2.8°C/100yr and likely its salinity at a rate of 0.6/100yr. The water column absorbed heat at a rate equivalent to 1–1.2 W/m2. All these trends are much higher than those reported in previous works (more than double in some cases). The warming of the water column produced an increase in the thermosteric component of sea level. However, this increase was compensated by the decrease in the halosteric component. Besides these changes, other alterations related to the Western Mediterranean Transition have been observed over shorter periods. The temperature and salinity of the intermediate waters increased before the winter of 2004/2005 and then the temperature and salinity of the deep waters increased dramatically in 2005. The density of the deep water reached values unprecedented before 2005. Deep and intermediate waters were uplifted by the presence of such dense deep waters. The arrival of warmer and saltier intermediate waters from the Eastern Mediterranean is also observed, mainly after 2010.Postprin
Intermittent Hypoxia-Induced Carotid Body Chemosensory Potentiation and Hypertension Are Critically Dependent on Peroxynitrite Formation
Oxidative stress is involved in the development of carotid body (CB) chemosensory potentiation and systemic hypertension induced by chronic intermittent hypoxia (CIH), the main feature of obstructive sleep apnea. We tested whether peroxynitrite (ONOO−), a highly reactive nitrogen species, is involved in the enhanced CB oxygen chemosensitivity and the hypertension during CIH. Accordingly, we studied effects of Ebselen, an ONOO− scavenger, on 3-nitrotyrosine immunoreactivity (3-NT-ir) in the CB, the CB chemosensory discharge, and arterial blood pressure (BP) in rats exposed to CIH. Male Sprague-Dawley rats were exposed to CIH (5% O2, 12 times/h, 8 h/day) for 7 days. Ebselen (10 mg/kg/day) was administrated using osmotic minipumps and BP measured with radiotelemetry. Compared to the sham animals, CIH-treated rats showed increased 3-NT-ir within the CB, enhanced CB chemosensory responses to hypoxia, increased BP response to acute hypoxia, and hypertension. Rats treated with Ebselen and exposed to CIH displayed a significant reduction in 3-NT-ir levels (60.8 ± 14.9 versus 22.9 ± 4.2 a.u.), reduced CB chemosensory response to 5% O2 (266.5 ± 13.4 versus 168.6 ± 16.8 Hz), and decreased mean BP (116.9 ± 13.2 versus 82.1 ± 5.1 mmHg). Our results suggest that CIH-induced CB chemosensory potentiation and hypertension are critically dependent on ONOO− formation
Circundatin H, a new inhibitor of mitochondrial NADH oxidase from Aspergillus ochraceus
[EN] Circumdatin H (1), a new alkaloid from the culture broth of Aspergillus ochraceus, has been isolated, together with a known circumdatin, circumdatin E (2) and other known compounds: flavacol (3) and stephacidin A (4). The structure of 1 was established on the basis of chemical and spectral evidence. All of these alkaloids showed biological activity as inhibitors of the mammalian mitochondrial respiratory chain.López-Gresa, MP.; Gonzalez Más, MC.; Primo, J.; Moya, P.; Romero, V.; Estornell, E. (2005). Circundatin H, a new inhibitor of mitochondrial NADH oxidase from Aspergillus ochraceus. The Journal of Antibiotics. 58:416-419. http://hdl.handle.net/10251/134335S4164195
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