Estabilização de landfarming de refinaria de petróleo, mediante metabolismo microbiano, e aplicabilidade em solos pré-desertificados

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

Missão de estabilização das Nações Unidas no Haiti (2004-2011): problemas, progressos e desafios

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

Uso de flutuadores como ferramenta de avaliação da influência do vento na circulação de uma lagoa de estabilização facultativa primária

Pós-graduação em Engenharia Civil - FEIS

Avaliação de desempenho de uma estação de tratamento de esgoto por lagoas de estabilização com chicanas

Pós-graduação em Engenharia Civil - FEIS

Resistência mecânica e alterações radiográficas na distração e estabilização intervertebral usando plug de poliuretana de mamona ou polimetilmetacrilato

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O papel da argila na estabilização térmica de nanocompósitos: um estudo da ordem local e a média distância

Pós-graduação em Química - IQ

Análises dos testes de cointegração e de correção de erro dos preços do café e do cacau no mercado internacional de futuros e opções

Neste artigo, analisam-se as séries de tempo individuais dos preços do café e do cacau no mercado internacional por meio de apropriados testes de estacionariedade e de raiz unitária. A diferença existente entre as séries temporais econômicas de curto prazo e de longo prazo tem atraído bastante a atenção de economistas nas duas últimas décadas. Os dados de longo prazo são freqüentemente associados às séries temporais não estacionárias conhecidas por tendências, enquanto as flutuações de curto prazo são séries de tempo estacionárias e são chamadas de ciclos. As séries temporais econômicas e financeiras podem ser vistas como combinações desses componentes de ciclos e tendências. Entretanto, a presença ou não de fatores comuns entre duas ou mais séries temporais pode produzir um efeito tal que a combinação das séries temporais não manifeste possuir nenhuma característica individualmente. Poderia haver uma tendência comum partilhada por duas séries temporais. Se não há mais tendências numa série de tempo, então as duas séries de tempo são cointegradas. Esse tipo de análise fator comum pode ser estendido e aplicado aos ciclos comuns.

Distribuição da renda entre salários e lucros na indústria de calçados de Franca de 1994 a 2002

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise da dinâmica de preços entre os mercados futuros de grão, farelo e óleo de soja na China e Estados Unidos

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Variação histórica dos preços e das reservas de petróleo brasileiras e internacionais no período 1992-2011

The oil market is not a common market, and its complexity increases dramatically when considering the strategic and geopolitical involved, thus resulting in large uncertainties and concerns. The attempt to control prices has always been a challenge for the major world powers, since the increase in oil prices benefits the exporting countries, but harms importers, especially those regarded as less developed. Understand and try to predict some strategies adopted up the oil crises is one of the main points of the research, in order to demonstrate how economics can be used as an instrument of power and domination between nations, and how plans and strategies and rearrangements of supply and demand favor the growth of this economy, especially in the current period, with the new Brazilian oil era, beginning with the discovery of pre-salt, amid a context of growing need for the use of oil and its derivatives

Projeto de um sistema anaeróbico para estabilização de lodo e recuperação de energia

The treatment of domestic and industrial effluents through Wastewater Treatment Plants (WTPs) generates a residue termed sewage sludge, rich in organic matter, high-volume, occasionally containing pathogens and heavy metals. The sludge generation can minimize the benefits brought by the treatment of sewage, because this residue does not always receive appropriate treatment before final disposal. The disposal is another problem related to sludge. Landfills generally does not have physical space and alternatives such as the use in agriculture requires an intense treatment that could be in many cases operational or economic unfeasible. The objective of this work is the theoretical research about the processes of stabilization of the sludge by anaerobic digestion and the methanogenic activity during the process. Through analysis of each step and contemplating each relevant factor in anaerobic digestion process in order to optimize them, we proposed a theoretical model of reactors capable of stabilize the sludge, reduce its volume and eliminate pathogens. The obtained configuration consists of two anaerobic reactors connected in series. The first one operates in the range mesophilic temperature (35 ° C) and has higher hydraulic retention time (25 days) working primarily in the stabilization of organic matter present in the sludge and producing biogas, whereas the second one operates in the thermophilic range (55 ° C) in order to eliminate pathogens, and to reduce the volume. The hydraulic retention time in the second reactor is lower (10 days). Both mesophilic and thermophilic processes were efficient in what was proposed, promoting the stabilization of organic matter present in the sludge and significant reduction of pathogens. As a final step with the sludge previously digested, it is indicated a final dehydration... (Complete abstract click electronic access below)

Estratégia de Investimento baseada em padrões descobertos por mineração de dados em séries históricas de preços diários do Indice IBOVESPA e das ações da PETROBRAS-PN (PETR4.SA)

With the increase of stakeholders and consequently increase of amount of nancial transaction the study of news investment strategies in the stock market with data mining techniques has been the target of important researches. It allows that great historical data base to be processed and analysed looking for pattern that can be used to take a decision in investments. With the idea of getting pro t more than the real indexs' gain, we propose a strategy method of transactions using rules built by algorithm classi cation. For that, diary historical data of Ibovespa index and Petrobras stocks are organized and processed to nding the most important attribute that act decisively when taking a investment decision.To test the accuracy of proposed rules, a non real portfolio management is created, showing the decisions' performance over the real index and stocks' performance. Following the proposed rules, the results show that the strategy of investment give me back a high return that Stock market's return. The exclusive characteristics of algorithms maximize the gain inside the analysed time allowing to determine the techniques' return and the number of the days necessary to double the initial investment. The best classi er applied on the time series and its use on the propose investments strategy will demand 104 days to double the initial capital

Ação dos inotrópicos e vasopressores na estabilização hemodinâmica em cães com choque séptico

Septic shock remains one of the most common challenges for the small animal practicing, presenting high mortality rates frequently associated with late identification of this syndrome, as well as an inappropriate treatment. In general, disruption of homeostasis occurs with an intense activation of inflammatory cascade, which leads to a damage to endothelial cells and an exposure to these cytokines, which will result in vasodilation and increased capillary permeability. Thus, there is a drop in blood pressure, even after aggressive fluid resuscitation. Therefore, drugs such as vasopressors, which act by increasing systemic vascular resistance, and inotropes, which have an effect on heart pump, should be administered in order to raise blood pressure, ensuring adequate tissue perfusion. The objective of this review was to gather information about the various drugs used in vasopressors/inotropes therapy, trying to explain the role of each one in different situations, in order to increase the survival rate in dogs affected with septic shock

Estabilização de enzimas: uma abordagem

Enzyme stabilization is one critic point in basic and applied enzymology. The increasing interest in applying enzymes in industrial processes has fostered the search for biocatalysts with new properties or extreme stability. Enzyme stabilization can be achieved by different methods: isolating enzyme variants from organisms living in appropriate extreme environments (extremozymes), by protein engineering, chemical modification, use of additives, immobilization. This brief review aims to give a better understanding of those methods employed for enzyme stabilization.

Erosão em taludes de corte: métodos de proteção e estabilização

This work addresses the erosion caused by rain, describing their steps and factors that most influence the intensity and volume of transported material. The work presents the Universal Soil Loss Equation that quantifies the erosion, with the influence of different factors that affect it. The following notes the occurrence of this process in cutting slopes. They suffer with removal of the vegetation and surface soil layer, making them even more susceptible to this process. In this way it's necessary a protection model for the slopes. Some protection methods are presents with their main features, advantages and disadvantages, implementation process, especially to survey the approximate cost of each method and their application restrictions