844 resultados para El niño con el pijama de rayas


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[es] En la etapa de Educación Infantil, el mito cumple una función esencial, colaborando en el desarrollo del intertexto del niño, pues es una de las bases de la cultura occidental y su conocimiento es vital para la comprensión de numerosas obras literarias (e incluso artísticas de todo tipo). Además, comparte varios rasgos con el cuento popular, lo que hace más sencilla su incorporación al aula por medio de las adaptaciones adecuadas. En el presente trabajo, tomando como base el mito heroico de Perseo y las muchas adaptaciones que de él existen, se ha planteado una propuesta didáctica que incluye una adaptación propia del mito y una serie de actividades, para acercar dicho mito al niño de forma que le resulte interesante y accesible.

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Sin fecha (1937) / Unidad de ínstalación: Carpeta Rectorado - B-3 / Nº de pág.: 1 (mecanografiada)

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Sin fecha (1937) / Unidad de ínstalación: Carpeta Rectorado - B-4 / Nº de pág.: 1. Mecanografiada

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Sin fecha (1937) / Unidad de ínstalación: Carpeta Rectorado - B-5 y 6 / Nº de pág.: 1 (escrita por las dos caras). Mecanografiada

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El presente trabajo tiene como objetivofundamental situar el naufragio del petrolero Prestige en su contexto jurídico internacional tanto en lo relativo al análisis de la responsabilidad limitada, como en la reparación del daño ocasionado. Básicamente, en el presente trabajo se analizará con detenimiento la normativa vigente en el momento del naufragio del buque y acorde con ese entramado de normas, que alcance puede tener la reparación. Finalmente, se concluirá mencionando esos aspectos que considero que deber ser mejorados con el único fin de preservar el medio ambiente.

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Fishery catch data on yellowfin tuna (Thunnus albacares) were examined to study the effects of El Niño events between 1990 and 1999 for an area in the northeastern tropical Pacific (18−24°N, 112−104°W). The data were extracted from a database of logbook records from the Mexican tuna purse-seine f leet. Latitudinal distribution of the catches increased from south to north for the 10-year period. Highest catches and effort were concentrated between 22°N and 23°N. This area accumulated 48% of the total catch over the 10year period. It was strongly correlated with El Niño-Southern Oscillation (ENSO) events. At least two periods of exceptionally high catches occurred following El Niño events in 1991 and 1997. Peaks of catches were triggered by the arrival of positive anomalies of sea surface temperature (SST) to the area. A delay of two to four months was observed between the occurrence of maximum SST anomalies at the equator and peaks of catch. Prior to these two events, negative SST anomalies were the dominant feature in the study area and catch was extremely low. This trend of negative SST anomalies with low catches followed by positive SST anomalies and high catches may be attributed to northward yellowfin tuna migration patterns driven by El Niño forcing, a result that contrasts with the known behavior of decreasing relative abundance of these tuna after El Niño events in the eastern Pacific. However, this decrease in relative abundance may be the result of a local or subregional effect.

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La enfermedad de Alzheimer es el desorden neurológico relacionado con la edad más común en la actualidad que se caracteriza por la neuroinflamación y por la pérdida de neuronas colinérgicas asociada a una disfunción progresiva de la memoria y de la cognición. Este trabajo estudia la relación entre el sistema cannabinoide y la enfermedad de Alzheimer, para demostrar que lo cannabinoides sintéticos se muestran como potenciales herramientas farmacológicas para el tratamiento de enfermedades neurodegenerativas, sobre todo asociadas a déficits cognitivos, como podría ser la enfermedad de Alzheimer.

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Se caracterizan los complejos entre la nucleoplasmina, una chaperona nuclear, y el octámero de histonas y se ve su papel en el ensamblaje de nucleosomas.

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Black rockfish (Sebastes melanops) range from California to Alaska and are found in both nearshore and shallow continental shelf waters (Love et al., 2002). Juveniles and subadults inhabit shallow water, moving deeper as they grow. Generally, adults are found at depths shallower than 55 meters and reportedly live up to 50 years. The species is currently managed by using information from an age-structured stock assessment model (Ralston and Dick, 2003).

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Fish bioenergetics models estimate relationships between energy budgets and environmental and physiological variables. This study presents a generic rockfish (Sebastes) bioenergetics model and estimates energy consumption by northern California blue rockf ish (S. mystinus) under average (baseline) and El Niño conditions. Compared to males, female S. mystinus required more energy because they were larger and had greater reproductive costs. When El Niño conditions (warmer temperatures; lower growth, condition, and fecundity) were experienced every 3−7 years, energy consumption decreased on an individual and a per-recruit basis in relation to baseline conditions, but the decrease was minor (<4% at the individual scale, <7% at the per-recruit scale) compared to decreases in female egg production (12−19% at the individual scale, 15−23% at the per-recruit scale). When mortality in per-recruit models was increased by adding fishing, energy consumption in El Niño models grew more similar to that seen in the baseline model. However, egg production decreased significantly — an effect exacerbated by the frequency of El Niño events. Sensitivity analyses showed that energy consumption estimates were most sensitive to respiration parameters, energy density, and female fecundity, and that estimated consumption increased as parameter uncertainty increased. This model provides a means of understanding rockfish trophic ecology in the context of community structure and environmental change by synthesizing metabolic, demographic, and environmental information. Future research should focus on acquiring such information so that models like the bioenergetics model can be used to estimate the effect of climate change, community shifts, and different harvesting strategies on rockfish energy demands.