Ensino a distância: limites e possibilidades na formação de professores

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Centro de Educação Ambiental do município de Araraquara (CEAMA): propostas, ações, limites e impasses

Pós-graduação em Educação Escolar - FCLAR

Classificação de centros e estudo de ciclos limite para sistemas lineares por partes em duas zonas no plano

Pós-graduação em Matemática - IBILCE

Limit cycles of cubic polynomial differential systems with rational first integrals of degree 2

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Short-term cycles of feed deprivation and refeeding promote full compensatory growth in the Amazon fish matrinxa (Brycon amazonicus)

Developing nutritional strategies that can reduce production costs for the fish industry without affecting productive performance is paramount to make the activity sustainable. We investigated if short-term cycles of feed deprivation and refeeding elicit compensatory growth in matrinxa (Brycon amazonicus) juveniles, using three feeding protocols for 60 days (Phase 1): two levels of deprivation (feed deprivation for two days and refeeding for three - D2R3, or four days - D2R4) and a control level (daily feeding). Following, all fish groups were fed daily at satiation for 15 days (Phase 2). At Phase 1, matrinxa achieved full compensatory growth in both deprivation levels by increasing feed intake and feed efficiency. Overall, deprived fish consumed 40% (D2R3) and 36% (D2R4) less feed than fish fed daily. In Phase 2, growth was similar for all fish. Feed intake increased in both deprived fish, but feed efficiency did not differ among groups and was lower than in Phase 1, indicating a reduced efficiency in feed utilization when food was freely available. We propose that intermittent cycles of feeding represent an effective means to reduce production costs. (C) 2014 Elsevier B.V. All rights reserved.

Physiological Response to Dolops carvalhoi (Crustacea: Branchiura) Infection by Pacu, Piaractus mesopotamicus, Subjected to Short Cycles of Food Restriction and Refeeding

Feeding strategies that reduce feed and promote compensatory growth could be an interesting tool to reduce costs in the fish production. However, fish health must be monitored to evaluate if their physiological response to adverse conditions, such as parasite infection, does not become compromised. A 12-wk growth trial was conducted to determine the physiological responses of pacu, Piaractus mesopotamicus, that were subjected to different fasting/refeeding cycles and infected with the Dolops carvalhoi. The schemes were: (i) control group fish (FD), (ii) food-restricted and controlled refeeding group (FR/Rc), and (iii) food-restricted and refeeding to satiation group (FR/Rs). After 84 d, the fish were exposed to D. carvalhoi for 30 h. The fish subjected to food restriction did not exhibit compensatory growth. Cortisol levels decreased in all groups within 30 h after infection. Glucose levels increased 6 h after the D. carvalhoi in the FR/Rs and 30 h after infection in the FD. In all of the fish groups, the hematocrit values were reduced after infection, and it was associated with a reduction in the mean corpuscular volume and erythrocytes. At 30 h after infection, the number of erythroblasts increased. The use of the feeding schemes does not indicate a failure of the pacu physiological responses.

Análise dos limites de inflamabilidade a partir de uma visão de pressões parciais de biocombustível

In this work concepts of flammability limits of anhydrous and hydrated ethanol to pressures below atmospheric, using the Dalton model for gaseous mixtures. Theoretical and experimental methods for determining the boundaries and the influence of parameters such as concentration, temperature and pressure were introduced. Analyzes from partial pressures of fuel vapor and correlations with temperature and total pressure were made. Finally presents an overview of aviation fuels, their requisites and trends in the use of biofuels in commercial aviation industry

Cooperviva: análise das possibilidades e limites do trabalho dos catadores de resíduos recicláveis de Rio Claro (SP)

The issue of waste, historically, has been getting worse as a result of the world´s population increase and in order to meet their needs the consumption of natural resources and the generation has been constantly increasing, especially in large urban centers. The people involved in the collection of recyclable solid waste, called from now on as collectors, are responsible for about 90% of the waste sent to recycling industry in Brazil. Apart from having a role in the economy, the collectors have specific knowledge and skills necessary to identify, collect, sort and sell these wastes. This study aims to examine the possibilities and limits of COOPERVIVA – Cooperativa de Trabalho dos Catadores de Material Reaproveitável de Rio Claro - as an instrument of the municipal solid waste management system, and its experience as a recyclable waste collectors cooperative. The methodological procedures of this study rely on the literature research on the experiences of cooperative and the management of municipal solid waste. In addition to this review of the literature, fortnightly visits to the cooperative were held in order to experience their daily activities, and testimonies of the cooperative members were collected as well as documents and reports produced by COOPERVIVA. The results of this analysis are considerations of the limitations of the cooperative and recommendations aimed at maximizing their potential as a tool of the domestic solid waste management system of and as a recyclable waste collectors cooperative. Among other things it can be concluded that the urban selective collection of waste challenges the community to the reinvention of life and the relationships each individual with the planet.

Um debate sobre os limites do crescimento econômico no Brasil sob a perspectiva do modelo Harrod-Domar

Desde fins da década de 70, com as crises do petróleo e a crise externa, ocorreram mudanças no sistema internacional de financiamento que levaram o sistema econômico brasileiro do “milagre econômico” à “década perdida”. Com isso, os anos 80 foram marcados por períodos de recessão, desequilíbrios internos, descontrole inflacionário, déficits no setor público, resultando em problemas macroeconômicos, os quais se tornaram herança para as próximas décadas. Sendo assim, nos anos 80, 90 e, parte dos anos 2000, a economia brasileira teve como principal foco políticas de visassem o ajuste econômico e a estabilização, deixando o crescimento econômico como segundo plano, fato que resultou em um baixo crescimento econômico, ou seja, baixas taxas do PIB real. Contudo, este fato foi contrariado a partir de 2004 quando o Brasil passou a apresentar taxas mais significativas de investimento, permitindo um crescimento do PIB superior a 5% a.a., sendo que para este período muitos economistas defendiam que a economia nacional poderia crescer de forma “sustentada”, sem causar pressões inflacionárias, a um nível de 4,5% a 5% ao ano. Assim sendo, nos dias atuais uma das abordagens com maior enfoque no ramo econômico é a questão do crescimento sustentável, o qual esteja dentro dos limites estruturais da economia brasileira, e com isso não gere pressões inflacionárias. Este questionamento ganhou força devido ao fato de que nos últimos anos o Brasil tem apresentado um crescimento acelerado, preocupando muitos economistas, os quais acreditam que este crescimento seja insustentável e contrariando outros, que defendem que, as taxas de crescimento do PIB (Produto Interno Bruto) se dão em níveis muito baixos, inferiores ao crescimento permitido pelo potencial estrutural do Brasil, devido ao controle que é aplicado a esta taxa em relação à meta de inflação determinada... (Resumo completo, clicar acesso eletrônico abaixo)

Análises tectono-estratigráfica e faciológico-diagenética da coquina-reservatório Lagoa Feia, Campo de Linguado, Bacia de Campos

A tectono-stratigraphic study of bivalve coquina-reservoir of Linguado Field allowed to identify two trends of permoporosity development. The delineation of these depositional-diagenetic traps were made through structural and stratigrafic cross-sections and maps. It resulted in the identification of shelf-ramp systems (tilted to SSE), it tickens from 60 to 70 meters and ends against an antithetic fault. The main coquina is bounded by fine siliciclastic units, white clay (low Gamma Ray values) or shale (high Gamma Ray values) lithologies, influencing diagenesis of basal or top coquina limestones (cimented, non-porous). Also in the middle of coquina-reservoir the “clayer” material is also associated with cemented carbonates, with also compartimentalize the reservoir into two subzones. The coquina porosity of the subzones is taken from density-neutron logs, while induction log estimates permeabilities and fluid saturations. It’s noticed the porosity development into pairs, good one followed by a regular/poor one and vice versa. These pairs form verticals succession, pair cycles where porosity improves or decreases upwards. These two scales of pore heterogeneity impose strong layering to the reservoir, and influences fluid saturations, oil-water contacts and porosity cut-offs. In a cross-section with density and induction logs, it can be observed the porosity variation along the shelf-ramp coquina (between 3LI_0004_RJS e 3RJS_0157C_RJ), the porosity is better developed in a downdip direction in the case of the two shelf wells, and also be the three ramp wells. The southern west downdip, 3RJS_0157C_RJ well, has best porosity pairs-cycles; however, its lowest structural conditions favour water saturation. Therefore it is fundamental for reservoir fluid evaluation a cross-plot analysis of RHOB-NPHI and Induction logs

Intervenção urbana: transporte público e qualidade de vida na cidade sem limites - terminal urbano central de Bauru

O grau de desenvolvimento econômico e social de uma sociedade pode ser avaliado diretamente à facilidade de transporte de passageiros e cargas. A qualidade de vida nas cidades é fortemente influenciada pelas características do transporte público. O Brasil tem 80 % de sua população morando em cidades, de forma que uma maior utilização do transporte público seria a solução para problemas de congestionamento, poluição, acidentes, desumanização e outros males que atingem as cidades modernas. Bauru, interior de São Paulo, é uma cidade de porte médio que apresenta um dos maiores índices de utilização de automóveis particulares, em parte pela formação da cidade, que é “espalhada”, e outra por suas características econômicas. A população de baixa renda, moradores da periferia e dependentes do transporte público, enfrenta grandes dificuldades para acessar as diferentes áreas da cidade (má operacionalização do sistema?). Este trabalho de finalização da graduação tem como objetivo maior trazer opções e facilitar o acesso da população a todas as áreas da cidade, através de um sistema de terminais e mini-terminais urbanos de transporte coletivo, buscando a melhor utilização do espaço público, uma maior mobilidade na cidade e a melhoria da qualidade de vida da população

Dos limites do crescimento econômico ao crescimento sustentável: a proposta do decrescimento e seus desafios

This study aims to assess the evolution of the environmental debate, starting by the contextualization of its first appearance, and perform a theoretical and methodological analysis of its ramifications, especially regarding the two main lines of thought in economics: environmental economics and ecological economics. Once confirmed the incompatibility of economic growth per se with the environmental limits, the degrowth proposal will be presented, its theoretical basis and especially the means by which its creators aim to promote a economic, politic and social restructuring. Finally, the challenges regarding the degrowth implementation on both the developed Northern economies and the third-world or emerging Southern countries will be exposed

Educação ambiental e o trabalho com valores: limites e possibilidades para a elaboração e desenvolvimento de práticas pedagógicas

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O léxico da apicultura e da melinponicultura no Brasil: limites e flexibilidade para sua fixação em um dicionário terminológico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Limites e possibilidades de uma proposta de gestão coletiva: cursinho popular da UNESP-Franca

Pós-graduação em Educação Escolar - FCLAR