995 resultados para regional pattern


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Copyright: © 2014 Rodrigues et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Copyright © 2014 Entomological Society of America.

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The importance of disturbance and the subsequent rate and pattern of recovery has been long recognised as an important driver of community structure. Community recovery is affected by processes operating at local and regional scales yet the examination of community level responses to a standardised disturbance at regional scales (i.e. among regions under different environmental conditions) has seldom been attempted. Here, we mechanically disturbed rocky intertidal lower shore algal dominated assemblages at three locations within each of three different regions within the Lusitanian biogeographical province (Azores, northern Portugal and the Canary Islands). All organisms were cleared from experimental plots and succession followed over a period of 12 months at which time we formally compared the assemblage structure to that of unmanipulated controls. Early patterns of recovery of disturbed communities varied among regions and was positively influenced by temperature, but not by regional species richness. Different components of the assemblage responded differently to disturbance. Regional differences in the relative abundance and identity of species had a key influence on the overall assemblage recovery. This study highlights how regional-scales differences in environmental conditions and species pool are important determinants of recovery of disturbed communities.

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Dissertação apresentada à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Jornalismo.

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Dissertação apresentada à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Jornalismo.

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Dissertação de Mestrado em Gestão de Empresas/MBA.

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Relatório de estágio apresentado à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Jornalismo.

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Refletir sobre "a vez e a voz" da mulher na sociedade contemporânea deve passar também pela análise das representações do feminino nos vários sistemas culturais em que estas são veiculadas: a Alta Cultura, a Cultura Popular e a Cultura de Massas. Partindo desta última, mais concretamente das imagens veiculadas pela Comunicação Social, esta comunicação apresenta uma reflexão sobre o modo como a mulher é representada na imprensa regional açoriana, mais especificamente nos jornais "Açoriano Oriental" e "Correio dos Açores", os títulos com maior tiragem na Região Autónoma dos Açores. Abrangendo o período de 15 de Fevereiro a 15 de Abril de 2013, a análise incidirá exclusivamente sobre géneros informativos (notícias, perfis, entrevistas, reportagens), tendo sido excluídos artigos de opinião e editoriais, uma vez que estes veiculam perspectivas essencialmente individuais. O objetivo deste estudo é averiguar qual o espaço que é concedido à figura da mulher em cada um destes jornais, com especial incidência na forma como ela é representada: a que tipo de notícias surge tendencialmente associada, quais as características que são postas em destaque, etc. O método de trabalho consistiu no levantamento dos artigos dos jornais em questão que fazem referência a mulheres, no tratamento dos dados estatísticos e na análise das notícias (análise do discurso e das imagens) e do seu enquadramento no jornal em que foram publicadas (secção, destaque, etc.).

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Neste trabalho, apresentam-se e discutem-se os resultados da aplicação da técnica de amostragem linear de descontinuidades em faces expostas do maciço rochoso da pedreira granítica de S. Domingos Nº 2 (Fontelo, Armamar; N de Portugal). É, igualmente, utilizada informação sobre a rede de fracturação regional, obtida através da análise morfoestrutural de mapas topográficos e mapas geológicos. São ainda referidos os métodos utilizados no tratamento dos dados de terreno com o objectivo de definir as famílias de descontinuidades e de caracterizar estatísticamente a sua atitude, espaçamento e extensão. Os resultados obtidos são comparados, à mega escala e macro-escala, no sentido de averiguar a presença de um padrão de fracturação com dimensão multiescala. Esta abordagem foi refinada através da aplicação de Sistemas de Informação Geográfica. A aplicação desta técnica para a caracterização da compartimentação do maciço poderá contribuir para aperfeiçoar a gestão sustentável do georrecurso da pedreira de S. Domingos Nº 2 (Fontelo). O controlo geomecânico do desmonte do maciço rochoso é salientado com o intuito de uma abordagem de geo-engenharia integrada dos maciços rochosos.

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Using fluid mechanics, we reinterpret the mantle images obtained from global and regional tomography together with geochemical, geological and paleomagnetic observations, and attempt to unravel the pattern of convection in the Indo-Atlantic "box" and its temporal evolution over the last 260 Myr. The << box >> presently contains a) a broad slow seismic anomaly at the CMB which has a shape similar to Pangea 250 Myr ago, and which divides into several branches higher in the lower mantle, b) a "superswell, centered on the western edge of South Africa, c) at least 6 "primary hotspots" with long tracks related to traps, and d) numerous smaller hotspots. In the last 260 Myr, this mantle box has undergone 10 trap events, 7 of them related to continental breakup. Several of these past events are spatially correlated with present-day seismic anomalies and/or upwellings. Laboratory experiments show that superswells, long-lived hotspot tracks and traps may represent three evolutionary stages of the same phenomenon, i.e. episodic destabilization of a hot, chemically heterogeneous thermal boundary layer, close to the bottom of the mantle. When scaled to the Earth's mantle, its recurrence time is on the order of 100-200 Myr. At any given time, the Indo-Atlantic box should contain 3 to 9 of these instabilities at different stages of their development, in agreement with observations. The return flow of the downwelling slabs, although confined to two main << boxes >> (Indo-Atlantic and Pacific) by subduction zone geometry, may therefore not be passive, but rather take the form of active thermochemical instabilities. (c) 2005 Elsevier B.V. All rights reserved.

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Background and aim: Cardiorespiratory fitness (CRF) and diet have been involved as significant factors towards the prevention of cardio-metabolic diseases. This study aimed to assess the impact of the combined associations of CRF and adherence to the Southern European Atlantic Diet (SEADiet) on the clustering of metabolic risk factors in adolescents. Methods and Results: A cross-sectional school-based study was conducted on 468 adolescents aged 15-18, from the Azorean Islands, Portugal. We measured fasting glucose, insulin, total cholesterol (TC), HDL-cholesterol, triglycerides, systolic blood pressure, waits circumference and height. HOMA, TC/HDL-C ratio and waist-to-height ratio were calculated. For each of these variables, a Z-score was computed by age and sex. A metabolic risk score (MRS) was constructed by summing the Z scores of all individual risk factors. High risk was considered when the individual had 1SD of this score. CRF was measured with the 20 m-Shuttle-Run- Test. Adherence to SEADiet was assessed with a semi-quantitative food frequency questionnaire. Logistic regression showed that, after adjusting for potential confounders, unfit adolescents with low adherence to SEADiet had the highest odds of having MRS (OR Z 9.4; 95%CI:2.6e33.3) followed by the unfit ones with high adherence to the SEADiet (OR Z 6.6; 95% CI: 1.9e22.5) when compared to those who were fit and had higher adherence to SEADiet.

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OBJETIVO: Descrever a distribuição regional e socioeconômica da disponibilidade domiciliar de alimentos no Brasil. MÉTODOS: Estudo com dados secundários da Pesquisa de Orçamentos Familiares 2008-2009, realizada pelo Instituto Brasileiro de Geografia e Estatística sobre aquisições de alimentos e bebidas para consumo domiciliar. As quantidades de alimentos, registradas durante sete dias consecutivos nos 55.970 domicílios brasileiros amostrados, foram transformadas em calorias e nutrientes. Indicadores de qualidade da dieta foram construídos e analisados segundo estratos socioeconômicos e regionais da população brasileira. RESULTADOS: O teor protéico da disponibilidade alimentar mostrou-se adequado em todos os estratos regionais e econômicos. Em contrapartida, observou-se excesso de açúcares livres e de gorduras em todas as regiões, especialmente nas regiões Sul e Sudeste. A proporção de gorduras saturadas foi elevada no meio urbano e consistente com a maior participação de produtos de origem animal. A presença insuficiente de frutas, legumes e verduras foi comum em todas as regiões. Intensificação do teor de gorduras e diminuição do teor de carboidratos da dieta foram observadas com o aumento da renda. CONCLUSÕES: As características negativas da qualidade da dieta da população brasileira observadas ao final da primeira década do século XXI conferem alta prioridade para políticas públicas de promoção da alimentação saudável.

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OBJECTIVE: To assess regional and sociodemographic differences in self-perceived health status among older adults. METHODS: A face-to-face quality of life survey was conducted in a representative sample of the Spanish population comprising 1,106 non-institutionalized elderly aged 60 or more in 2008. Logistic regression models were used to explain self-perceived health status according to the EuroQol Group Visual Analogue Scale (EQ-VAS). Independent variables included sociodemographic and health characteristics as well as the nomenclature of territorial units for statistics level 1 (NUTS1: group of autonomous regions) and level 2 (NUTS 2: autonomous regions). RESULTS: Younger and better off respondents were more likely to have a positive self-perceived health status. Having no chronic conditions, independence in performing daily living activities and lower level of depression were also associated with positive self-perceived health status. People living in the south of Spain showed a more negative self-perceived health status than those living in other regions. CONCLUSION: The study results point to health inequality among Spanish older adults of lower socioeconomic condition and living in the south of Spain. The analysis by geographic units allows for international cross-regional comparisons.

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O presente relatório, no âmbito da obtenção do grau de Mestre no Ensino da Música, na Escola Superior de Música de Lisboa, descreve o estágio efectuado no Conservatório Regional de Setúbal e analisa a prática pedagógica do professor através de três alunos de violino e viola d´arco de níveis diferentes: Iniciação (violino); 4º grau, Ensino Básico (viola d´arco) e 7º grau, Ensino Secundário (viola d´arco). São descritas e analisadas as práticas pedagógicas desenvolvidas com base na filosofia do Método Suzuki e na Teoria da Auto-­determinação de Edward L. Deci e Richard M. Ryan. O objectivo fundamental do processo de ensino-­ aprendizagem é a criação de condições para que os alunos se motivem autonomamente e atinjam níveis altos de motivação intrínseca (Teoria da Auto-­determinação), e que se tornem bons instrumentistas e melhores seres humanos (Método Suzuki).

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The definition and programming of distributed applications has become a major research issue due to the increasing availability of (large scale) distributed platforms and the requirements posed by the economical globalization. However, such a task requires a huge effort due to the complexity of the distributed environments: large amount of users may communicate and share information across different authority domains; moreover, the “execution environment” or “computations” are dynamic since the number of users and the computational infrastructure change in time. Grid environments, in particular, promise to be an answer to deal with such complexity, by providing high performance execution support to large amount of users, and resource sharing across different organizations. Nevertheless, programming in Grid environments is still a difficult task. There is a lack of high level programming paradigms and support tools that may guide the application developer and allow reusability of state-of-the-art solutions. Specifically, the main goal of the work presented in this thesis is to contribute to the simplification of the development cycle of applications for Grid environments by bringing structure and flexibility to three stages of that cycle through a commonmodel. The stages are: the design phase, the execution phase, and the reconfiguration phase. The common model is based on the manipulation of patterns through pattern operators, and the division of both patterns and operators into two categories, namely structural and behavioural. Moreover, both structural and behavioural patterns are first class entities at each of the aforesaid stages. At the design phase, patterns can be manipulated like other first class entities such as components. This allows a more structured way to build applications by reusing and composing state-of-the-art patterns. At the execution phase, patterns are units of execution control: it is possible, for example, to start or stop and to resume the execution of a pattern as a single entity. At the reconfiguration phase, patterns can also be manipulated as single entities with the additional advantage that it is possible to perform a structural reconfiguration while keeping some of the behavioural constraints, and vice-versa. For example, it is possible to replace a behavioural pattern, which was applied to some structural pattern, with another behavioural pattern. In this thesis, besides the proposal of the methodology for distributed application development, as sketched above, a definition of a relevant set of pattern operators was made. The methodology and the expressivity of the pattern operators were assessed through the development of several representative distributed applications. To support this validation, a prototype was designed and implemented, encompassing some relevant patterns and a significant part of the patterns operators defined. This prototype was based in the Triana environment; Triana supports the development and deployment of distributed applications in the Grid through a dataflow-based programming model. Additionally, this thesis also presents the analysis of a mapping of some operators for execution control onto the Distributed Resource Management Application API (DRMAA). This assessment confirmed the suitability of the proposed model, as well as the generality and flexibility of the defined pattern operators