993 resultados para María Isabel Josefa, Archiduquesa de Austria


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For efficient use of conservation resources it is important to determine how species diversity changes across spatial scales. In many poorly known species groups little is known about at which spatial scales the conservation efforts should be focused. Here we examined how the community turnover of wood-inhabiting fungi is realised at three hierarchical levels, and how much of community variation is explained by variation in resource composition and spatial proximity. The hierarchical study design consisted of management type (fixed factor), forest site (random factor, nested within management type) and study plots (randomly placed plots within each study site). To examine how species richness varied across the three hierarchical scales, randomized species accumulation curves and additive partitioning of species richness were applied. To analyse variation in wood-inhabiting species and dead wood composition at each scale, linear and Permanova modelling approaches were used. Wood-inhabiting fungal communities were dominated by rare and infrequent species. The similarity of fungal communities was higher within sites and within management categories than among sites or between the two management categories, and it decreased with increasing distance among the sampling plots and with decreasing similarity of dead wood resources. However, only a small part of community variation could be explained by these factors. The species present in managed forests were in a large extent a subset of those species present in natural forests. Our results suggest that in particular the protection of rare species requires a large total area. As managed forests have only little additional value complementing the diversity of natural forests, the conservation of natural forests is the key to ecologically effective conservation. As the dissimilarity of fungal communities increases with distance, the conserved natural forest sites should be broadly distributed in space, yet the individual conserved areas should be large enough to ensure local persistence.

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En este Trabajo fin de Grado se hace una reflexión interesante en torno al modelo social europeo, sus características en los distintos países, y, en comparación con el modelo americano. Se subrayan los pilares del Estado del Bienestar y su debilidad actual provocada por la crisis económica, proponiéndose posibles alternativas para su viabilidad. La Unión Europea se encuentra actualmente, en un momento crucial de su historia, donde las dudas sobre la viabilidad de su modelo social aumentan cada día, frente a las cuales tendrá que actuar adecuadamente para seguir garantizando el bienestar de su sociedad así como su crecimiento económico. Se explica las características del modelo social europeo; sus diferencias entre los países miembros, y, con otros modelos como el americano. Analizamos también el impacto de la crisis en el mercado de trabajo en los distintos escenarios y sus consecuencias sobre la pobreza, la cohesión social y la desigualdad, valorando el efecto negativo tanto en el crecimiento económico como en la democracia. En base a esos datos, que son distintos para cada país dependiendo de su historia y modelo social, se perfilan posibles medidas para superar la crisis económica y la supervivencia de bienestar europeo.

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Artículo científico Inorg. Chem. 2013, 52, 8074−8081

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Purpose. To review the proposed pathogenic mechanisms of age macular degeneration (AMD), as well as the role of antioxidants (AOX) and omega-3 fatty acids (omega-3) supplements in AMD prevention. Materials and Methods. Current knowledge on the cellular/molecular mechanisms of AMD and the epidemiologic/experimental studies on the effects of AOX and omega-3 were addressed all together with the scientific evidence and the personal opinion of professionals involved in the Retina Group of the OFTARED (Spain). Results. High dietary intakes of omega-3 and macular pigments lutein/zeaxanthin are associated with lower risk of prevalence and incidence in AMD. The Age-Related Eye Disease study (AREDS) showed a beneficial effect of high doses of vitamins C, E, beta-carotene, and zinc/copper in reducing the rate of progression to advanced AMD in patients with intermediate AMD or with one-sided late AMD. The AREDS-2 study has shown that lutein and zeaxanthin may substitute beta-carotene because of its potential relationship with increased lung cancer incidence. Conclusion. Research has proved that elder people with poor diets, especially with low AOX and omega-3 micronutrients intake and subsequently having low plasmatic levels, are more prone to developing AMD. Micronutrient supplementation enhances antioxidant defense and healthy eyes and might prevent/retard/modify AMD.

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Comunicación (Poster) en panel del congreso: Designing New Heterogeneous Catalysts, Faraday Discussion, 4–6 April 2016. London, United Kingdom.

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Comunicación a congreso (póster): XXIV Simposio del Grupo Especializado de Cristalografía y Crecimiento Cristalino, GE3C. 23-26 de junio de 2014, Bilbao

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Abstract de congreso: Póster presentado en 12th International Conference on Materials Chemistry (MC12), 20 - 23 July 2015, York, United Kingdom

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Comunicación a congreso (póster): Reunión conjunta de la Sociedad Española de Mineralogía y la Sociedad Española de Arcillas (SEM-SEA 2012), Bilbao 27-30 de junio 2012.

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Comunicación a congreso (póster): 11th European Biological Inorganic Chemistry Conference EUROBIC 11. 12-16 September, 2012 - Granada (Spain)