Relações entre variáveis ambientais e anfíbios anuros em áreas de cerrado e floresta estacional semidecidual

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Positioning and number of nutritional levels in dose-response trials to estimate the optimal-level and the adjustment of the models

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Exigência térmica e produtividade da amoreira-preta em função das épocas de poda

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Água-mãe na produção romanesca de José Lins do Rego

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A aposentadoria por idade do trabalhador rural sob o enfoque constitucional: efetivação por meio da atividade judicial

Pós-graduação em Direito - FCHS

Um estudo sobre o endurecimento, o processamento e propriedades mecânicas de uma liga de alumínio da série 3XXX tipo AA 3104 com adições de zinco

Modificações na composição química e no processamento termomecânico têm sido algumas das várias alternativas estudadas, para melhorar o desempenho de ligas de alumínio tradicionais. Neste trabalho foi modificada a composição de uma liga Al-Mn-Mg do tipo AA 3104, endurecível por deformação, adicionando-se diversos teores de zinco, transformando-a numa liga Al-Mn-Mg(Zn), endurecível por precipitação. O objetivo foi estudar e quantificar os efeitos do zinco sobre o processamento termomecânico e as propriedades mecânicas da liga modificada. Ligas com teores de zinco entre 0,03 a 1,52% foram fundidas e processadas obtendo-se um encruamento semelhante a condição H-19 industrial, denominada rota R. Ligas com teores de zinco entre 1,14 a 2,17% foram fundidas e processadas segundo três diferentes rotas: na rota S, o recozimento da rota R foi substituído por solubilização antes da laminação a frio; nas rotas E3H e E6H, as tiras laminadas a frio foram envelhecidas em dois estágios: 121°C por três horas para as duas rotas, mais três horas para a rota E3H e seis para a rota EH a 163°. A tensão de escoamento (SIGMA IND E) e a resistência à tração (SIGMA IND T) para a rota R aumentaram da ordem de 18% e 19% respectivamente, com o aumento do teor de zinco, enquanto o alongamento (E) permaneceu em torno de 4,5%. As propriedades mecânicas (SIGMA IND E SIGMA T E ) AUMENTARAM EM TORNO DE 25%, 31% E 27%, respectivamente, para a rota S. Considerando concentrações aproximadamente iguais de zinco, não foram verificadas diferenças significativas para (SIGMA E SIGMA T), entre as rotas R E S, no entanto, a rota S apresentou alongamento médio maior que a rota R da ordem 44%. Os menores valores de (SIGMA IND E SIGMA IND T) e os maiores valores de E foram obtidos para a rota E6H.

How marine upwelling influences the distribution of Artemesia longinaris (Decapoda: Penaeoidea)?

Upwelling events can occur in most of the oceans altering the water physical, chemical and sediment conditions and consequently the species communities dwelling the areas. For better understanding the behavior of populations inhabiting upwelling regions, the spatial and temporal distribution of a Penaeoidea shrimp was studied correlating it with the abiotic factors that vary during upwelling and non-upwelling periods in an area under influence of Cabo Frio upwelling. Bottom salinity and temperature, organic matter and sediment type from each station were sampled from March 2008 to February 2010, in six stations located between 5 and 45 m depth. The lowest temperatures were recorded during spring and summer for both years with temperature values lower than 19 degrees C. A total of 26,466 Artemesia longinaris shrimps were captured mainly in 10-35 m depth. Upwelling periods showed significant differences in abundance in relation to non-upwelling periods. The spatial distribution among stations varied according to the temperature with higher abundance in stations with values between 19 and 21 degrees C. The highest abundance of A. longinaris was recorded in spring and summer when intrusions of the cold waters of South Atlantic Central Waters (SACW) were frequent. Thus, the effect of cold water of SACW boosted by the upwelling was a determinant factor in the spatial and temporal distribution of A. longinaris in the studied region.

Barreiras à entrada no Setor Siderúrgico Brasileiro no período de 1993 a 2012

This study aims to identify and analyze the barriers to entry in the two technological routes (integrated and semi - integrated mills) , the Brazilian steel industry , specifically in the areas of Plans and Long , in the period 1993-2012 . Thus, the study is characterized as an exploratory - descriptive research, based on data collection from secondary sources. The competitiveness is influenced by structural market factor, among them the threat of new market entrants. The entrants can have their ticket inhibited by entry barriers. In the steel industry, it was identified that the main strong structural barriers are economic, the type of scale economy, highlighting the idle capacity, and sunk costs. Institutional and economic barriers, the diversification and product differentiation type, are considered moderate barriers. Economic barriers, the type absolute cost advantage and initial capital requirements, and strategic price barrier are considered weak. With this, one can consider that the input type which most closely approximates the market for national steel industries is blocked, since their main barriers are the structural type

Avaliação da influência do estresse em modelo experimental de colite por administração de Ácido Trinitrobenzenosulfônico (TNBS) em concentração subinflamatória

Inflammatory bowel disease (IBD) is a chronic and relapsing disease caused by exaggerated response of the immune system. It represents a significant health problem by limiting the quality of life and being the main risk factor for colorectal cancer. Despite of its importance, the high worldwide incidence and being the object of research for several decades, the etiology remains unknown. Studies indicates an interaction between genetic and environmental factors which together with the intestinal microbiota, leads to an uncontrolled immune response. One of the aggravating environmental factors often discussed is stress, as the daily life of the population in general is increasingly rushed. In order to demonstrate the influence of stress on IBD, this study aimed to standardize an experimental model of colitis induced by instillation of a trinitrobenzene sulfonic acid (TNBS) noninflammatory concentration plus exposure to stress that intensify the inflammation. Therefore, an experiment was done to determine what would be the noninflammatory concentration. In this step, four different concentrations of TNBS (1, 6, 12.5 or 40mg/ml) were tested and the lowest concentration capable of inducing a noninflammatory response in the gut was defined as 1 mg/ml. Then, a second experiment was performed which induced colitis and exposed the animals to restraint stress. The results, however, showed that this stimulus was not enough to exacerbate the damage caused by the 1 mg/ml concentration of TNBS in the colon. With some changes in the protocol, the third experiment associated cold and restraint, as well as changes on the day of euthanasia, which occurred immediately after the stress session. The results of myeloperoxidase activity measurement were unexpected due to the noninflammatory concentration of TNBS caused an intestinal inflammation similar to the concentration of 40 mg/ml. However, the results of glutathione quantification and the corticosterone ...

Comportamento de ovipostura em Chrysomya megacephala (Fabricius) frente à presença de posturas prévias: competição intra e interespecífica

Em ambiente natural, as moscas-varejeiras depositam seus ovos geralmente em grupos de 100 a 300 ovos, freqüentemente na presença de ovos de outras espécies. Estes ovos são depositados em substratos discretos e efêmeros, que constituem unidades pequenas e separadas espacialmente, tais como carcaças, fezes, frutos, fungos e vegetais em decomposição, nas quais ocorrem mudanças sucessivas e rápidas. Em condições naturais, tais substratos apresentam-se saturados de indivíduos, de uma única ou mais espécies de insetos, principalmente em estágio larval, caracterizando uma intensa competição por recursos durante o desenvolvimento pós embrionário. Vários autores tentaram explicar a coexistência de moscas-varejeiras em substratos efêmeros, sugerindo que cada espécie pode ter seu próprio nicho dentro do substrato, uma especialização em diferentes partes do recurso alimentar ou comportamentos distintos de dispersão larval pós alimentar, que podem permitir a coexistência de espécies. No gênero Chrysomya, as similaridades nos nichos ecológicos, como por exemplo, no requerimento alimentar de suas larvas, podem acirrar a competição por recursos, e a espécie C. albiceps pode tornar-se predadora, apresentando comportamento de predação intra-guilda e canibalismo, interferindo na coexistência, no tamanho populacional das espécies presentes e podendo até excluir alguma delas. O nível de competição por espaço e alimento que os imaturos irão enfrentar relaciona-se com o padrão de distribuição espacial destes no substrato, decorrentes da escolha do sítio de oviposição pelas fêmeas adultas. Assim, o comportamento de oviposição é um processo biológico fundamental para as moscas, pois pode determinar a sobrevivência e o tamanho populacional nas sucessivas gerações. Por este motivo, o objetivo deste trabalho ...(Resumo completo, clicar acesso eletrônico abaixo)

O twitter enquanto ferramenta de Relações Públicas para construir relacionamento: um estudo multicasos

Technological development in the IT and telecommunications sectors have transformed the way organizations communicate with their audiences. Social Media allow the exchange of information instantaneously, in a communication from many to many. With few studies in the area, many companies venture into the social media without a strategy and a generally end up denigrating their image itself. Thus, this study was conceived from the idea of contributing, analytically, based on the main concepts of Public Relations so the organizations effectively take advantage of their online presence to generate relationships, more specifically, on Twitter.Twitter is a social media with a mature public, requiring dynamics of information and quick answers, based on dialogue, referring to the idea of text messages (SMS). To better expose the results of this research, three organizations with expertise in twitter were chosen: Bradesco , Positivo Informática and Ponto Frio. The choice of case studies was based on the different segments that each one operates and that they are large companies with reputable commercial operations in the Brazilian scenario. To analyze their profiles, several authors were studied, like Fábio França, Maria Aparecida Ferrari, Margarida Kunsch e Marlene Machiori.The intent of the analysis of the Twitter profiles of these organizations is to understand whether they are using strategies for creating and maintaining relationships with your followers and how this occurs from specific categories, as other companies have committed serious errors and impairing their business because of mismanagement in social media. Therefore, the profiles were analyzed from the netnográfica methodology. As a result, it was observed that organizations have not yet developed the character of relationships in social media , treating this channel as another advertising channel It was observed that Positivo Informática has no specific strategy for Twitter...

Eficiência energética em ar condicionado e refrigeração através da aplicação da termoacumulação

The use of refrigeration and air conditioning systems is of fundamental importance when it comes to air-conditioning of environments. Also important is the use of electricity for equipments’ operation related to these systems. Due to high cost of charging for this type of energy, factors economy and efficiency occupy key roles among design parameters of a system. One of the ways to get this economy is the use of a technique called thermal storage, or cold storage, which intends to move the required loads during peak time and also their equalizing, so that the energy is transferred from the peak time to non-peak time, thereby reducing the cost of energy consumed. Cold can be stored in the form of ice or ice water. This work aims to perform a technical-economic analysis of a mall located in Vale do Paraíba checking the feasibility of deploying a thermal storage system to achieve an economy in the cost of the energy used by the establishment. Through the parameters measured by the concessionaire of energy we can get the values of energy demand and power consumed, which will serve as basis for calculation for the study. The results obtained allow the development of two alternative proposals to the current configuration, one chosen by the criteria and results presented by technical-economic and energy analysis

Avaliação do comportamento mecânico sob deformação da liga Ti- 30Ta visando aplicações biomédicas

Titanium and its alloys have been used for biomedical applications due their excellent properties such as high corrosion resistance, biocompatibility and mechanical properites. In this study, microstructural and mechanical properties of Ti-30Ta alloy was evaluated during its processing. Ti-30Ta alloy ingots were produced from sheets of commercially pure titanium (99.9%) and tantalum (99.9%). Its melting was realized in arc melting furnace in an argon atmosphere. After homogenizing at 1200ºC, ingots were cold worked by swaging. Samples with 13 mm in diameter were obtained. They were forging at the reduction ratios of 15%. After deformation, microstructure was evaluated by optical microscopy in each condition. Also, Vickers microhardness of samples was measured and phase constitution was evaluated using XRD analysis

Caracterização estrutural da porção central da Bacia de Santos e seu embasamento continental adjacente, através de interpretação de imagens de satélites e geofísicas

The Santos Basin is located in the Brazilian continental margin and includes the coast of Santa Catarina, Paraná, São Paulo and Rio de Janeiro states. Its northern limit is the Campos Basin through the High of Cabo Frio and the southern one with the Pelotas Basin through the Platform of Florianópolis, totaling an area of approximately 350,000 square kilometers in a water depth of 3,000 m. The Paranapanema Lineament has WNW / ESE direction, and extends from the area filled by the Paraná Basin, on the border between the states of Sao Paulo and Parana, lasting up to near the ocean floor along with the fracture zone of Rio de Janeiro. The Capricorn Lineament is a feature inherited from the separation between the continents of Africa and South America, and is the main structural feature NW / SE of the Santos Basin center-south region. These two structures together with other ones with continental origin may be associated with structural features in the sediments from the Santos Basin. This work aims to characterize the structures operating in the central portion of the Santos Basin based on subsurface data in the offshore area (2D seismic) together with data from the surface of the continental basement in a way to correlate the Santos Basin structures with the continental regional traits. This data interpolation showed that the structural features of the continent operates on the submerged zone, the seismic sections show these structural trends for the Paranapanema Lineament / Fracture Zone of Rio de Janeiro, Capricorn Lineament and two fault zones that exhibit structures typical of a transfer zone

O espaço em Água-mãe, de José Lins do Rego

O romance Água-mãe de José Lins do Rego é ambientado no Rio de Janeiro e foge, portanto, da temática característica do escritor - a sociedade e a região nordestina. Por conta dessa mudança de espaço, a crítica classifica o romance como uma obra não-regionalista e, por isso, de pouca importância na produção reguiana. Ao contar a história de três famílias que habitam a região de Cabo Frio, às margens da lagoa da Araruama, o escritor tematiza o terror do sobrenatural e a força do destino centrados em um lugar específico, provenientes dos malefícios da majestosa Casa Azul, supostamente responsável pelas diversas tragédias que acometem as personagens. O espaço, na obra, é de grande importância para que se crie o clima de mistério que aterroriza a todos. Por isso, o presente trabalho mostra, a partir de teorias sobre essa categoria narrativa, quais os artifícios usados por José Lins do Rego para construí-la e criar a atmosfera que toma a narrativa, o terror que amedronta as personagens de Água-mãe