Influência da bacia hidrográfica e características espaço-temporais de variáveis limnológicas sobre reservatórios no Rio Jacuí - RS

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Implementação e análise do desempenho de técnicas de monitoramento através de medição de vibração e correlação com corrente estatórica

A crescente demanda por energia elétrica aliada à grande importância deste setor para o sistema econômico nacional tem levado o governo e empresas particulares a investirem em estudos que possibilitem melhorar o desempenho dos sistemas envolvidos nesse processo, em virtude dos relevantes ganhos que esta iniciativa pode produzir. Neste contexto, esse trabalho é uma contribuição ao estudo do desenvolvimento de uma metodologia de diagnóstico de defeitos para a máquina hidrogeradora número 3 da Usina Hidrelétrica de Coaracy Nunes, localizada no Estado do Amapá. Em muitas situações os métodos de análise de vibrações são utilizados para detectar a presença de falhas nesse tipo de máquina, neste trabalho também será utilizada a análise dos sinais de corrente para fornecer indicações similares. Este trabalho tem por objetivo apresentar uma metodologia de diagnóstico de defeito em máquinas elétricas através dos sinais de vibração e correlação com a análise da corrente do estator. No decorrer deste trabalho apresenta-se uma revisão bibliográfica das técnicas de monitoramento e diagnóstico das condições das máquinas elétricas, através dos ensaios de vibração correlacionados com as características da corrente estatórica. O resultado da correlação da medição de vibração com a medição de corrente se baseia em uma metodologia implementada por um sistema de aquisição e de processamento de dados desenvolvido na plataforma LabView. Os resultados experimentais foram obtidos a partir de defeitos mecânicos (desbalanceamento mecânico e defeitos nas pistas, externa e interna dos rolamentos) induzidos em uma bancada experimental concebida com intuito de representar um sistema de geração. Finalizando, os sinais de vibração e corrente foram analisados e comparados para verificar se os defeitos que foram evidenciados pelo método convencional de vibração alteravam o comportamento dos sinais de corrente. Os bons resultados desse trabalho mostram a viabilidade em estudos futuros nesta área.

Sanções econômicas internacionais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O mito da revolução silenciosa - programa nacinal de economia solidária: uma análise crítica das práticas de autogestão no Brasil em pequenos empreendimentos populares

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A transição para a democracia na Argentina (1984-1989): um balanço do governo Alfonsin

Neste artigo, pretendemos mostrar como a transição para a democracia na Argentina, apesar dos sinais de maior estabilidade institucional, convive com a consolidação de um econômico-social cujos sinais de crise tendem a acentuar cada vez mais o seu caráter excludente.

Bioética e modernidade: entre o cativeiro da razão e a construção dos direitos humanos

Pós-graduação em Direito - FCHS

O caminho novo: o Vale Histórico da Serra da Bocaina - opulência e decadência da sub-região paraibana paulista (reintegração de um espaço geográfico 'deprimido')

A pesquisa resgata o trecho paulista do “Caminho Novo”, antiga estrada geral de São Paulo, ligação terrestre com o Rio de Janeiro, a partir do século XVIII. No chamado Vale Histórico da Serra da Bocaina, cujo relevo se apresenta muito movimentado, a cultura do café penetrou em território paulista. Esta sub-região do Vale do Paraíba tornou-se uma das mais prósperas do país. A fase posterior, de queda na produção cafeeira, transformou-a numa região “deprimida” e estagnada. Atualmente, existem esforços para, através dos diversos ramos do turismo, reativar e dinamizar esta região vale-paraibana paulista, de modo a reintegrá-la ao pujante sistema econômico de São Paulo.

Estudo sobre o entorno do mercado municipal de São Paulo

A city is a place, is a housing, is the birthing place of economics. A city is made of routes, is made of people, by people and must also be structured for people. However, with the consolidation of a neoliberal economic system where ownership and economic generation prevail over the citizen's rights and the needs of those who have less, the city becomes a space of buying, exchange and increasingly commercial. The city of São Paulo is part of this context and is the result of the transformation process driven by real estate speculation, and the presented study area, the surroundings of the Municipal Market of São Paulo, is a new area in transformation. This work has the goal to bring a historical perspective and current status of the locality, with their revitalization projects, landscape changes and changes in housing, audience and resident citizens

Parametrização de modelo para simulação de distribuição de combustíveis em um terminal

A great competition between companies happens nowadays, due to, among other factors, the globalized economic system, the growing consumer demand and the technological advances. This fact implies the need for fast and efficient tools in decision making. A validated simulation model is able to perform this task. Thus, it was parameterized a simulation model of a fuel distribution terminal. It is a complex system because of its great variability. The model´s data input were collected, however the model was not statistically validated, in other word, does not adequately represent the real system. A search was made for the possible causes of this fact: dividing the compartments of tanker trucks, data collection may have been insufficient, inefficient model for unloading of biofuels

Relações Públicas pela sustentabilidade: o profissional dentro das organizações

This research has the purpose of highlighting one of the acting areas of the public relations' professional, ensuring that he has enough competence to develop his work within an organization, implementing actions and programs in pursuit of a sustainable growth. The study starts with an analysis of the organizations and their communication process to further expand the understanding of the concept of sustainable development and finally addressing the role of public relations and the scenario organizational that it is envolved. In the globalized world we live in, our relationships are mediated by the capitalism: economic system that is concerned with the higher production seeking only profits. Thus, some organizations - acting in accordance with this model, end up don't caring about the environment around them, using it only like an instrument for achieving their goals. However, because this type of action, the contemporary society is facing serious environmental problems, fact that arouses the attention of civil society members and international organs, concerned to combine progress with sustainable development. The public relations' professional, concerned about the concretization of a concept and favorable institutional identities, besides the obvious envolvement with environment, can act in defense of this, implementing policies and campaigns ecologically correct for sustainability

White Noise e Cosmopolis: análise do processo de desumanização em ficções pós-modernas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desenvolvimento territorial, políticas públicas e inovação social no Alto Jequitinhonha - MG

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Inovação, competição internacional e transição hegemônica: a política científico-tecnológica dos Estados Unidos para evitar o declínio no século XXI

Pós-graduação em Relações Internacionais (UNESP - UNICAMP - PUC-SP) - FFC

Bio-energy conversion cost: a new index to evaluate the bioeconomic eficiency

This study evaluated a nonlinear programming excel workbook PPFR (http://www.fmva.unesp.br/ppfr) for determining the optimum nutrient density and maximize margins. Two experiments were conducted with 240 one-day-old female chicks and 240 one-day-old male chicks distributed in 48 pens (10 chicks per pen, 4 replicates) in a completely randomized design. The treatments include the average price history (2009s and 2010s) for broiler increased and decreased by 25% or 50% (5 treatments to nonlinear feed formulation) and 1 linear feed formulation. Body gain, feed intake, feed conversion were measured at 21, 42 and 56 d of age. Chicks had ad libitum access to feed and water in floor pens with wood shavings as litter. The bio-economic Energy Conversion [BEC= (Total energy intake*Feed weighted cost per kg)/ (Weight gain*kg live chicken cost)] was more sensitive for measuring the bio-economic performance for broilers, and especially with better magnitude. This allowed a better assessment of profitability, the rate of growth and not just energy consumption, the production of broilers, by incorporating energy consumption, allowing for more sensitivity to the new index (BEC). The BEC was demonstrated that the principle of nonlinear formulation minimizes losses significantly (P<0.05), especially under unfavorable conditions the price of chicken in the market. Thus, when considering that a diet of energy supply shows up as the most expensive item of a formulation, it should compose necessarily the formula proposed for a bio-economic index. Thus, there is need to evaluate more accurately, not only the ingredients of a ration, but the impact of nutrients on the stability of a solution, mainly due to the energy requirement. This strategy promotes better accuracy for decision making under conditions of uncertainty, to find alternative post-formulation. From the above, both weight gain and feed conversion, as traditional performance indicators, cannot finalize or predict a performance evaluation of an economic system creating increasingly intense and competitive. Thus, the energy concentration of the diet becomes more important definition to feed formulator, by directly impact profit activity by interactions with the density of nutrients. This allowed a better evaluation of profitability, the rate of energy performance for broilers, by incorporating the energy consumption formula, allowing more sensitivity to the new index (BEC). These data show that nonlinear feed formulation is a toll to offer new opportunities for poultry production to improved profitability.

O clima em sua regulamentação político-econômica: o acordo de Copenhague - COP 15

We know that the Earth goes through natural cycles that influence its climate and the development of their societies. In recent decades, climate changes and nature began to call world attention to the unbridled exploitation that was carried by the current economic system, causing unrest among scientific, social, political and economic world. The theory that man causes a warming in global temperatures by the release of greenhouse gases made the headlines of major newspapers in the world. From there, it was only a matter of time before environmental concerns became ownership of capital by its excessive appropriation. The fear of nuclear threat by the bombs of Hiroshima and Nagasaki left in fanfare the world, which together with the devastating impact of the exploitation of man and nature gave birth to the Environmental Revolution, a way of trying to change the development patterns of the time and behavior of the population. However, based on the historical form of capitalist domination, this was another measure that was apossada the economic system being transformed into economic value and political exchange. The origin of the conventions, meetings, conferences, parliaments set up to discuss environmental issues, eventually became forums of political and economic talks focused on environmental governance, valuing an asset that is public and everyone. Environmental and climate issue now has a value, thus turning the agenda on the agenda of the United Nations (UN) for its political and economic regulation in the form of global agreement. Given the need for understanding the climate issue, was born the Conference of the Parties (COPs), a regulatory body for climate negotiations, surrounded interests, complexities, conflicts and disagreements between the parties countries, which becomes clear when we analyze their agreements...