853 resultados para Cyclone Tracy


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La enfermedad cardiovascular y la enfermedad coronaria son uno de los mayores problemas de salud pública en el mundo. Miles de personas fallecen por esta causa, a pesar de que ambas son prevenibles, en 1990 en EEUU 916.000 personas murieron

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El hombre como ser social siente la necesidad de organizarse para satisfacer sus necesidades y las de su contexto, es por eso que utilizamos estrategias de vinculación de individuos y establecemos relaciones que nos permiten el intercambio de experiencias, metodologías y recursos que orientan nuestro quehacer, como en la labor de cuidar; la cual requiere de varias acciones encaminadas hacia el desarrollo optimo de su tarea y demanda del apoyo adecuado que facilite su desempeño. Esta labor se hace aún más dispendiosa cuando se tiene bajo el cuidado un miembro cercano de nuestra familia o una persona a quien le tenemos gran afecto y debemos gran respeto, como sucede con un adulto mayor en situación de discapacidad.

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Examina la relación entre los niveles de actividad física (AF) de forma objetiva, la condición física (CF) y el tiempo de exposición a pantallas en niños y adolescentes de Bogotá, Colombia.

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La primera edición del de Francisco Eustaquio Álvarez, fue publicada hacia 1890. En el texto, donde sigue a Stuart Mill, y en los campos metafísico y en de la teoría del conocimiento, donde sigue el sensualismo de Destutt De Tracy, Álvarez indica que todas las ideas aún las más abstractas, intelectuales o morales- son cualidades sentidas en muchos objetos, lo que lleva a reunirlos con una denominación genérica que forma una idea general. Para escapar al materialismo crudo, afirma que la sensibilidad no es la capacidad que tienen algunos órganos corporales de recibir impresiones del exterior y transmitirlas a los centros nerviosos, sino una capacidad del conocer. El conocimiento tiene origen en la experiencia, que es la suma de los que se siente. Las operaciones de la razón son las del raciocinio inductivo, perfectamente analizables y determinadas desde su punto de partida (la experiencia), que genera los hechos desde los cuales se asciende hasta las más altas generalizaciones y se desciende al conocimiento de nuevos hechos.Los sistemas filosóficos son concebidos por Álvarez como instrumentos de grupos socialmente dominantes.

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En cubierta: 'Experimental'. Módulo de Auxiliar de Administración y Gestión, Auxiliar de Comercio Interior. Título tomado de la cubierta

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En cubierta: 'Experimental'. Módulos de Mantenimiento en línea e Instalador y mantenedor eléctrico. Título tomado de la cubierta

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Em finais da década de sessenta, um grupo de investigadores descobriu que para um conjunto de emoções básicas existem expressões não-verbais distintas, universais, e provavelmente inatas. Desde então, multiplicaram-se os estudos em diferentes culturas que pretendem testar a tese da universalidade. Muitos deles consistiram no desenvolvimento e validação de sistemas de codificação de acção muscular facial para as expressões das diferentes emoções. Recentemente, têm surgido evidências de universalidade das expressões de algumas emoções auto-conscientes. Esta investigação teve como objectivo testar o comportamento na população portuguesa do University of California, Davis, Set of Emotion Expressions, ou UCDSEE (Tracy, Robins, & Schriber, 2009), um conjunto de 47 fotografias com expressões emocionais básicas e auto-conscientes. Participaram nesta investigação 427 estudantes universitários, a quem foi pedido que as observassem e identificassem as respectivas emoções. As expressões das emoções em estudo foram reconhecidas pela população portuguesa num nível superior ao acaso, exceptuando as de vergonha. O reconhecimento das expressões das emoções básicas foi superior ao das emoções auto- conscientes. O UCDSEE mostrou-se adequado para futuros estudos com a população portuguesa.

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Population declines of many wildlife species have been linked to habitat loss incurred through land-use change. Incorporation of conservation planning into development planning may mitigate these impacts. The threatened Lesser Prairie-Chicken (Tympanuchus pallidicinctus) is experiencing loss of native habitat and high levels of energy development across its multijurisdictional range. Our goal was to explore relationships of the species occurrence with landscape characteristics and anthropogenic effects influencing its distribution through evaluation of habitat suitability associated with one particular habitat usage, lekking. Lekking has been relatively well-surveyed, though not consistently, in all jurisdictions. All five states in which Lesser Prairie-Chickens occur cooperated in development of a Maxent habitat suitability model. We created two models, one with state as a factor and one without state. When state was included it was the most important predictor, followed by percent of land cover consisting of known or suspected used vegetation classes within a 5000 m area around a lek. Without state, land cover was the most important predictor of relative habitat suitability for leks. Among the anthropogenic predictors, landscape condition, a measure of human impact integrated across several factors, was most important, ranking third in importance without state. These results quantify the relative suitability of the landscape within the current occupied range of Lesser Prairie-Chickens. These models, combined with other landscape information, form the basis of a habitat assessment tool that can be used to guide siting of development projects and targeting of areas for conservation.

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A detailed view of Southern Hemisphere storm tracks is obtained based on the application of filtered variance and modern feature-tracking techniques to a wide range of 45-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40) data. It has been checked that the conclusions drawn in this study are valid even if data from only the satellite era are used. The emphasis of the paper is on the winter season, but results for the four seasons are also discussed. Both upper- and lower-tropospheric fields are used. The tracking analysis focuses on systems that last longer than 2 days and are mobile (move more than 1000 km). Many of the results support previous ideas about the storm tracks, but some new insights are also obtained. In the summer there is a rather circular, strong, deep high-latitude storm track. In winter the high-latitude storm track is more asymmetric with a spiral from the Atlantic and Indian Oceans in toward Antarctica and a subtropical jet–related lower-latitude storm track over the Pacific, again tending to spiral poleward. At all times of the year, maximum storm activity in the higher-latitude storm track is in the Atlantic and Indian Ocean regions. In the winter upper troposphere, the relative importance of, and interplay between, the subtropical and subpolar storm tracks is discussed. The genesis, lysis, and growth rate of lower-tropospheric winter cyclones together lead to a vivid picture of their behavior that is summarized as a set of overlapping plates, each composed of cyclone life cycles. Systems in each plate appear to feed the genesis in the next plate through downstream development in the upper-troposphere spiral storm track. In the lee of the Andes in South America, there is cyclogenesis associated with the subtropical jet and also, poleward of this, cyclogenesis largely associated with system decay on the upslope and regeneration on the downslope. The genesis and lysis of cyclones and anticyclones have a definite spatial relationship with each other and with the Andes. At 500 hPa, their relative longitudinal positions are consistent with vortex-stretching ideas for simple flow over a large-scale mountain. Cyclonic systems near Antarctica have generally spiraled in from lower latitudes. However, cyclogenesis associated with mobile cyclones occurs around the Antarctic coast with an interesting genesis maximum over the sea ice near 150°E. The South Pacific storm track emerges clearly from the tracking as a coherent deep feature spiraling from Australia to southern South America. A feature of the summer season is the genesis of eastward-moving cyclonic systems near the tropic of Capricorn off Brazil, in the central Pacific and, to a lesser extent, off Madagascar, followed by movement along the southwest flanks of the subtropical anticyclones and contribution to the “convergence zone” cloud bands seen in these regions.