940 resultados para Configurações modais


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Na contemporaneidade, a família tradicional (pai, mãe, filhos) passou por mudanças de paradigmas, gerando novas configurações familiares, mais flexíveis e plurais. Nas novas configurações, o elemento de constituição não é só a partir dos laços de parentesco de nature-za biológica e civil, mas, principalmente, o da afetividade. Nesta dissertação, analisamos as rupturas e/ou continuidades dos discursos institucionais religiosos no protestantismo histórico, mais especificamente nas Igrejas Metodista e Luterana, acerca dos divórcios e novos casa-mentos. O objetivo da pesquisa foi o de identificar em que medida o posicionamento institu-cional religioso e a prática das comunidades de fé são coerentes e/ou dissonantes em relação às transformações experimentadas pela instituição família na contemporaneidade. Os docu-mentos utilizados para as análises foram: pastorais, jornais oficiais, atas, e demais documentos que foram pesquisados nos acervos da biblioteca da UMESP e no Portal Luteranos. A pesqui-sa de campo foi realizada através da aplicação de questionários e entrevistas aos sujeitos reli-giosos no município de Ferraz de Vasconcelos, nas Igrejas Metodista e Luterana. Através da análise documental e da pesquisa de campo, buscamos identificar o impacto que as novas con-figurações familiares causaram sobre o discurso institucional e sobre a prática eclesial.

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Esta pesquisa oferece um mapeamento das principais tendências e características das rádios comunitárias legalizadas na Região Administrativa de Bauru, interior paulista, o que totaliza 23 emissoras. Objetivou-se entender qual a relação dessas emissoras com a população local, o modo como operam, os modelos de gestão adotados, as circunstâncias em que foram outorgadas, se e como têm viabilizado a participação popular e contribuído para a ampliação da cidadania. A partir da discussão de conceitos como comunidade , local e região , buscou-se enumerar as características usualmente encontradas e aquelas que idealmente deveriam estar presentes nas mídias comunitária, local e regional, especialmente sob o aspecto da participação popular e da cidadania, para empregá-los como parâmetros norteadores de análise das rádios estudadas. O trabalho se utilizou do estudo de casos múltiplos como tipo de pesquisa, além da pesquisa bibliográfica. As técnicas utilizadas foram entrevistas com os gestores das emissoras, estudo de documentos e observação da programação. Considera-se que tais emissoras são fenômenos comunicacionais complexos, flexíveis e contingentes, contexto esperado por lidar com o estudo de objetos díspares e em circunstâncias variadas. Contribuem para a ampliação da cidadania e promovem a participação, quando e na proporção em que sua equipe de gestão possui esse foco de trabalho. Apesar de seus limites, representam avanço para a democratização das comunicações no Brasil, proporcionando acesso da população a um meio de comunicação local.(AU)

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This study aimed to evaluate the influence of the main meteorological mechanisms trainers and inhibitors of precipitation, and the interactions between different scales of operation, the spatial and temporal variability of the annual cycle of precipitation in the Rio Grande do Norte. Além disso, considerando as circunstâncias locais e regionais, criando assim uma base científica para apoiar ações futuras na gestão da demanda de água no Estado. Database from monthly precipitation of 45 years, ranging between 1963 and 2007, data provided by EMPARN. The methodology used to achieve the results was initially composed of descriptive statistical analysis of historical data to prove the stability of the series, were applied after, geostatistics tool for plotting maps of the variables, within the geostatistical we opted for by Kriging interpolation method because it was the method that showed the best results and minor errors. Among the results, we highlight the annual cycle of rainfall the State which is influenced by meteorological mechanisms of different spatial and temporal scales, where the main mechanisms cycle modulators are the Conference Intertropical Zone (ITCZ) acting since midFebruary to mid May throughout the state, waves Leste (OL), Lines of instability (LI), breeze systems and orographic rainfall acting mainly in the Coastal strip between February and July. Along with vortice of high levels (VCANs), Complex Mesoscale Convective (CCMs) and orographic rain in any region of the state mainly in spring and summer. In terms of larger scale phenomena stood out El Niño and La Niña, ENSO in the tropical Pacific basin. In La Niña episodes usually occur normal or rainy years, as upon the occurrence of prolonged periods of drought are influenced by EL NIÑO. In the Atlantic Ocean the standard Dipole also affects the intensity of the rainfall cycle in State. The cycle of rains in Rio Grande do Norte is divided into two periods, one comprising the regions West, Central and the Western Portion of the Wasteland Potiguar mesoregions of west Chapada Borborema, causing rains from midFebruary to mid-May and a second period of cycle, between February-July, where rains occur in mesoregions East and of the Wasteland, located upwind of the Chapada Borborema, both interspersed with dry periods without occurrence of significant rainfall and transition periods of rainy - dry and dry-rainy where isolated rainfall occur. Approximately 82% of the rainfall stations of the state which corresponds to 83.4% of the total area of Rio Grande do Norte, do not record annual volumes above 900 mm. Because the water supply of the State be maintained by small reservoirs already are in an advanced state of eutrophication, when the rains occur, act to wash and replace the water in the reservoirs, improving the quality of these, reducing the eutrophication process. When rain they do not significantly occur or after long periods of shortages, the process of eutrophication and deterioration of water in dams increased significantly. Through knowledge of the behavior of the annual cycle of rainfall can have an intimate knowledge of how it may be the tendency of rainy or prone to shortages following period, mainly observing the trends of larger scale phenomena

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Significant advances have emerged in research related to the topic of Classifier Committees. The models that receive the most attention in the literature are those of the static nature, also known as ensembles. The algorithms that are part of this class, we highlight the methods that using techniques of resampling of the training data: Bagging, Boosting and Multiboosting. The choice of the architecture and base components to be recruited is not a trivial task and has motivated new proposals in an attempt to build such models automatically, and many of them are based on optimization methods. Many of these contributions have not shown satisfactory results when applied to more complex problems with different nature. In contrast, the thesis presented here, proposes three new hybrid approaches for automatic construction for ensembles: Increment of Diversity, Adaptive-fitness Function and Meta-learning for the development of systems for automatic configuration of parameters for models of ensemble. In the first one approach, we propose a solution that combines different diversity techniques in a single conceptual framework, in attempt to achieve higher levels of diversity in ensembles, and with it, the better the performance of such systems. In the second one approach, using a genetic algorithm for automatic design of ensembles. The contribution is to combine the techniques of filter and wrapper adaptively to evolve a better distribution of the feature space to be presented for the components of ensemble. Finally, the last one approach, which proposes new techniques for recommendation of architecture and based components on ensemble, by techniques of traditional meta-learning and multi-label meta-learning. In general, the results are encouraging and corroborate with the thesis that hybrid tools are a powerful solution in building effective ensembles for pattern classification problems.

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This research is presented as a comparative study about the baking capacity of two box type ovens, produced from a packing case used to equipment transportation. The two ovens have different internal settings, with the greenhouse effect and the concentration of incident solar radiation as the main parameters of differentiation. The main features of the ovens are the low cost, the reuse of materials, the manufacturing and assembly processes simplified, the easy management and the ability of baking a variety of foods simultaneously. The manufacturing and operation of the ovens can be handled by any social and intellectual level of people. The feasibility of the ovens to bake the tested foods was proved with success, ensuring the supremacy of the mirrored oven. The results obtained for both ovens were competitive even with the conventional gas oven, producing the baking of three cakes with 750g in just 80 minutes.

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With an increasing number of mature fields, heavy oil recovery has performed one of the great challenges of the oil industry. The Brazilian Northeast, for example, has numerous heavy oil reservoirs are explored with the use of thermal methods. Among the types of methods used for heavy oil, there is the method of in-situ combustion, a technique in which heat is produced within the container, unlike the injection of heated fluid when the heat is generated at the surface and transported to the reservoir. In this type of process, it is common to use vertical wells as injectors and producers. However, methods which use horizontal wells like oil producers are increasingly studied because of greater contact area between the formation and combustion front. Thus, the main objective of this work was to study the different configurations of wells (CIS THAITM and CAGD) in the process of in-situ combustion in oil recovery using a semi-synthetic tank with Brazilian Northeast features. The method "toe-to-heel air injection" (THAITM) is a process of enhanced oil recovery, which is the integration of in-situ combustion with technological advances in drilling horizontal wells. This method uses horizontal wells such as oil producers, keeping vertical injection wells for injecting air. The oil drain process by differential gravitational assisted with combustion (CAGD) is an integrated, in this configuration the horizontal injector well is drilled at the top formation with a horizontal production well in the lower section. The simulations were performed in a commercial program of thermal processes, called "STARS" (Steam, Thermal, and Advanced Processes Reservoir Simulator), the company CMG (Computer Modelling Group). An analysis of the air flow injection was performed and it was found that each method had a maximum injection to the base model, a show that through this air injection limit was reduced cumulative production of oil. Analyses of operating parameters were used: injection flow, configuration and completion of wells. In the sensitivity analysis we found that the air injection flow showed greater influence on THAI method, since the CIS method the completion of the wells was the most influential parameter and CAGD configuration wells showed the greatest influence in the recovered fraction. The economic results have shown that the best case obtained in CAGD method because, despite having higher initial cost showed the best financial return compared to the best cases the CIS and THAI.

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With an increasing number of mature fields, heavy oil recovery has performed one of the great challenges of the oil industry. The Brazilian Northeast, for example, has numerous heavy oil reservoirs are explored with the use of thermal methods. Among the types of methods used for heavy oil, there is the method of in-situ combustion, a technique in which heat is produced within the container, unlike the injection of heated fluid when the heat is generated at the surface and transported to the reservoir. In this type of process, it is common to use vertical wells as injectors and producers. However, methods which use horizontal wells like oil producers are increasingly studied because of greater contact area between the formation and combustion front. Thus, the main objective of this work was to study the different configurations of wells (CIS THAITM and CAGD) in the process of in-situ combustion in oil recovery using a semi-synthetic tank with Brazilian Northeast features. The method "toe-to-heel air injection" (THAITM) is a process of enhanced oil recovery, which is the integration of in-situ combustion with technological advances in drilling horizontal wells. This method uses horizontal wells such as oil producers, keeping vertical injection wells for injecting air. The oil drain process by differential gravitational assisted with combustion (CAGD) is an integrated, in this configuration the horizontal injector well is drilled at the top formation with a horizontal production well in the lower section. The simulations were performed in a commercial program of thermal processes, called "STARS" (Steam, Thermal, and Advanced Processes Reservoir Simulator), the company CMG (Computer Modelling Group). An analysis of the air flow injection was performed and it was found that each method had a maximum injection to the base model, a show that through this air injection limit was reduced cumulative production of oil. Analyses of operating parameters were used: injection flow, configuration and completion of wells. In the sensitivity analysis we found that the air injection flow showed greater influence on THAI method, since the CIS method the completion of the wells was the most influential parameter and CAGD configuration wells showed the greatest influence in the recovered fraction. The economic results have shown that the best case obtained in CAGD method because, despite having higher initial cost showed the best financial return compared to the best cases the CIS and THAI.

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The use of access technologies for communication, based on scanning methods, enables new communication opportunities for individuals with severe motor dysfunction. One of the most commom examples of this type of technology is the single switch scanning. Single switch scanning keyboards are often used as augmentative and alternative communication devices for inidividuals with severe mobility restrictions and with compromised speech and writing. They consist of a matrix of keys and simulate the operation of a physical keyboard to write messages. One of the limitations of these systems is their low performance. Low communication rates and considerable errors ocurrence are some of the few problems that users of these devices suffers during daily use. The development and evaluation of new strategies in augmentative and alternative communication are essential to improve the communication opportunities of user who make use of such technology. Thus, this work explores different strategies to increase communication rate and reduce user’s mistakes. Computational and practical analysis were performed for the evaluation of proposed strategies.

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A popularidade dos dispositivos móveis tem vindo a aumentar significativamente nos últimos anos e, com isso, surge a necessidade de aceder à Internet nos smartphones e tablets, quer para fins laborais quer para lazer. Devido às limitações de tráfego nas redes móveis, como 3G ou 4G, as pessoas procuram conectar-se aos pontos de acesso nas suas proximidades para poupar tráfego móvel. Os pontos de acesso também são uma outra forma de se conseguir conectar à Internet no estrangeiro, mesmo quando não se tem disponível um plano de dados móveis. As soluções existentes, que visam conectar os seus utilizadores à Internet através de pontos de acesso, requerem o pagamento de uma taxa elevada ou violam a privacidade das redes Wi-Fi ao permitir que todos os utilizadores se consigam conectar sem a devida autorização dos proprietários e que consumam tráfego e largura de banda sem quaisquer restrições. Com este trabalho pretende-se permitir que os proprietários das redes possam limitar os recursos de quem acede às suas redes (tráfego, largura de banda e/ou número de utilizadores conectados) usando apenas uma aplicação Android para fazer todo o controlo de acesso e limitação de recursos. Além de limitar os recursos pretende-se possibilitar a interoperabilidade entre pontos de acesso de diferentes plataformas para permitir que utilizadores de diferentes operadores de telecomunicações possam partilhar as suas redes mutuamente. Para se atingir estes objetivos foi desenvolvido um sistema composto por uma aplicação Android e um servidor web. O teste da solução foi feito através de testes com utilizadores, identificando-se que os participantes partilharam maioritariamente as suas próprias redes. A maioria dos utilizadores optou por partilhar as suas redes de forma pública (com todos os utilizadores) e limitar o número de utilizadores conectados para salvaguardar o desempenho da sua ligação. Com este trabalho, consegue-se concluir que é possível incentivar os utilizadores a partilhar as suas redes caso estejam presentes mecanismos que consigam manter a privacidade da rede e que lhes consigam dar controlo sobre a partilha.

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Objetivo: Este estudo tem como objetivo analisar a perceção do funcionamento familiar em diferentes tipologias familiares – famílias nucleares intactas, monoparentais e reconstituídas. Participantes: Participaram neste estudo 1089 pessoas, adultos e adolescentes num total de 387 famílias. Instrumentos: Escala de Avaliação da Adaptabilidade e Coesão Familiar (FACES IV) e a Escala Familiar de Autorresposta – Versão II (SFI). Resultados: As famílias nucleares intactas percecionam-se como sendo mais coesas, flexíveis, saudáveis/competentes, com uma melhor comunicação e menos desmembradas em comparação com as famílias monoparentais. Os pais percecionam a família como sendo mais coesa, emaranhada, flexível, com uma melhor comunicação e menos desmembrada do que os filhos. Os participantes com um rendimento superior a 600 euros percecionam as suas famílias como sendo mais flexíveis e referem-se mais participantes do que os sujeitos com um rendimento inferior a 600 euros. Existem diferenças nas famílias nucleares intactas e monoparentais, que se encontram nas diferentes etapas do ciclo vital, nas dimensões coesão, flexibilidade, emaranhamento, rigidez, subescala caótica e comunicação. / Purpose: This study aims to analyze the perception of family functioning in different family typologies - intact nuclear families and single parents families as well as reconstituted families. Participants: The study included 1089 people, adults and adolescents in a total of 387 families. Instruments: Family Adaptability and Cohesion Evaluation Scale (FACES IV) and the Self-Report Family Inventory - Version II (SFI). Results: The intact nuclear families perceive themselves as being more cohesive, flexible, healthy/competent, with better communication and less disengaged when compared to single parent’s families. Parents perceive the family as being more cohesive, enmeshed, flexible, with better communication and less disengaged than their children. Participants with an income higher than 600 euros per month perceive their families as being more flexible and refer being more satisfied than participants with less than 600 euros of income per month. There are differences in intact nuclear and single parent families at different stages of the life cycle in the cohesion, flexibility, enmeshed, rigid, chaotic and communication subscales.

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Tese de Doutoramento, Educação (Sociologia da Educação), 11 de Julho 2013, Universidade dos Açores.

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A popularidade dos dispositivos móveis tem vindo a aumentar significativamente nos últimos anos e, com isso, surge a necessidade de aceder à Internet nos smartphones e tablets, quer para fins laborais quer para lazer. Devido às limitações de tráfego nas redes móveis, como 3G ou 4G, as pessoas procuram conectar-se aos pontos de acesso nas suas proximidades para poupar tráfego móvel. Os pontos de acesso também são uma outra forma de se conseguir conectar à Internet no estrangeiro, mesmo quando não se tem disponível um plano de dados móveis. As soluções existentes, que visam conectar os seus utilizadores à Internet através de pontos de acesso, requerem o pagamento de uma taxa elevada ou violam a privacidade das redes Wi-Fi ao permitir que todos os utilizadores se consigam conectar sem a devida autorização dos proprietários e que consumam tráfego e largura de banda sem quaisquer restrições. Com este trabalho pretende-se permitir que os proprietários das redes possam limitar os recursos de quem acede às suas redes (tráfego, largura de banda e/ou número de utilizadores conectados) usando apenas uma aplicação Android para fazer todo o controlo de acesso e limitação de recursos. Além de limitar os recursos pretende-se possibilitar a interoperabilidade entre pontos de acesso de diferentes plataformas para permitir que utilizadores de diferentes operadores de telecomunicações possam partilhar as suas redes mutuamente. Para se atingir estes objetivos foi desenvolvido um sistema composto por uma aplicação Android e um servidor web. O teste da solução foi feito através de testes com utilizadores, identificando-se que os participantes partilharam maioritariamente as suas próprias redes. A maioria dos utilizadores optou por partilhar as suas redes de forma pública (com todos os utilizadores) e limitar o número de utilizadores conectados para salvaguardar o desempenho da sua ligação. Com este trabalho, consegue-se concluir que é possível incentivar os utilizadores a partilhar as suas redes caso estejam presentes mecanismos que consigam manter a privacidade da rede e que lhes consigam dar controlo sobre a partilha.

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Os espaços geográficos, típicos de cada sociedade e de cada época, vão se modificando, e não se pode deixar de refletir sobre o modo como vive a sociedade que os construiu, sem discutir as novas formas de organização social que surgem como um processo e as modificações no meio ambiente. O espaço regional geográfico na organização e no entendimento de seus processos naturais e sociais, desenvolvem-se demarcando suas configurações. Diante do exposto, este texto tem como proposta subsidiar, a partir de um resgate teórico, as configurações ambientais do agreste sergipano no Nordeste do Brasil. Apresenta cunho predominantemente teórico, baseado em autores que tratam da temática, enfocando o fator climático como principal elemento, bem como tabulação e elaboração de dados (gráficos, cartogramas). É contribuição para estudos e políticas públicas no agreste sergipano, inclusive revisando a literatura sobre a concepção de agreste em estudo, com intenção de deixar visível a configuração dessa mesorregião, assim como a investigação do espaço e dinâmica ambiental em nível estadual. Entretanto, é mister perceber as relações sócio-econômicas associadas às transformações do sistema natural.

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The purpose of this work was to analyze the logistical distribution of Brazilian soybean by applying a quadratic programming to a spatial equilibrium model. The soybean transportation system is an important part of the soybean complex in Brazil, since the major part of the costs of this commodity derives from the transportation costs. Therefore, the optimization of this part of the process is essential to a better competitiveness of the Brazilian soybean in the international market. The Brazilian soybean complex have been increasing its agricultural share in the total of the exportation value in the last ten years, but due to other countries' investments the Brazilian exportations cannot be only focused on increasing its production but it still have to be more efficient. This way, a model was reached which can project new frames by switching the transportation costs and conduce the policy makers to new investments in the sector.

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The post-harvesting cleaning process in fresh market tomatoes production is essential to the consumer acceptance, since the degree of dirtiness of the fruits is directly related to its quality. However, the washing stage of the cleaning process of commercial packinghouse demands an excessive water volume, bringing serious environmental concerns. The objective of this work was to compare the cleaning efficiency in two cleaning systems through the evaluation of different operational conditions of the cleaning process, related with the brush rotation, water flow and fruit standing time under the system. It was compared the conventional system utilized in commercial equipment with a system using commercial sprays. The results showed that the cleaning efficiency was not directly related to the water volume used, but to the water pressure, standing time and brushes rotation. Therefore, the use of commercial sprays can bring benefits to the cleaning efficiency, increasing it up to 13%, and to the environmental, decreasing water consumption.