315 resultados para Impacto ambiental - São Lourenço da Serra (SP)


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Recentemente, a temática ambiental tem sido caracterizada como um dos temas mais abrangentes, nesse sentido, o tema degradação ambiental tem se constituído em um problema tanto da geração que nos constituiu quanto da geração que nos sucederão. Podemos afirmar que o modelo de desenvolvimento econômico adotado em inúmeros paises, inclusive no Brasil, baseado no consumo e na exploração dos recursos naturais tem contribuído para a persistência dos problemas relacionados a degradação ambiental. Tendo em vista, esse contexto e a importância dos meios de comunicação em especial às revistas de divulgação científica. O presente trabalho teve como objetivo responder as seguintes questões norteadoras: Quais os problemas relacionados à temática ambiental, particularmente, os problemas relativos à degradação ambiental, são veiculados na Revista Ciência Hoje (CH)?Os temas e os problemas relativos à degradação ambiental são trabalhados de modo a contemplar as controvérsias socioambientais? Em caso positivo quais controvérsias socioambientais são veiculadas? Consistiram na investigação da abordagem da temática ambiental na Revista Ciência Hoje particularmente, os problemas relativos à degradação ambiental. A Ciência Hoje, criada em 1982, a partir do Projeto Ciência Hoje responsável pelas publicações de divulgação cientifica da Sociedade Brasileira para o Progresso da Ciência (SBPC) entidade civil sem fins lucrativos e que tem como objetivo promover o desenvolvimento tecnológico no Brasil. Dessa forma realizou-se uma pesquisa documental, cujo corpus documental foi constituído por 161 exemplares da CH publicados nos anos de 1990-2005. A metodologia utilizada na analise dos artigos da Revista foi a “Análise de Conteúdo” proposta por Bardin (1991). A partir da analise dos artigos selecionados, foram identificados os seguintes problemas relativos... (Resumo completo, clicar acesso eletrônico abaixo)

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This study aims to examine rural development in the State of São Paulo, comparing the administrative regions of Campinas, Registro, and São Jose dos Campos. In addition, it will be studied new concepts and new actors in rural Brazil together with actions and changes in the European Union regarding the rural development, as well as structural and social changes of the old dichotomy CITY – COUNTRYSIDE

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The society continues demonstrating its need regarding the products and services, even though it becomes increasingly value the protection of the environment. In this context, environmental management is defined as a management method that emphasizes to continuously improve results and promote sustainable development. Moreover it has as a tool the laws which provide the benchmarks and mechanisms for companies to adapt their activities in such a way that does not alter the quality of the environment. In this sense, in order to propose improvements to a dairy aiming their environmental suitability, a present study was prepared by following the production activities of the enterprise, the raising of standards and applicable legal requirements and environmental assessment for the preparation of an array of aspects and impacts with the task of identifying the most significant according to MOREIRA (2006). The results indicated that some of the impacts of high relevance are related to the generation of wastewater and solid waste, which do not have treatment and / or proper disposal and indeed require intervention for their suitability. Through, these results were drawn up proposals for actions conformation. In addition, they were proposed meeting the requirement for health and safety at work, in accordance with the standard regulations. This study has the function, therefore, propose to the company in question, an environmental management plan that ensures the protection of the environment and health of employees and consequently the improvement of production processes and products

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The weight of a vehicle has always been considered an extreme important factor, because it interferes in the performance, steering, consume, environmental impact, wear of components, among the others. Because of the new demand, consume reduction aim and gases emission increased the necessity to manufacture lighter vehicles, guaranteeing the complying with the gas emission international law. Besides the legal demand, the low weight will certainly be essential for the competitiveness for the next generation of vehicles. It is with this thinking the composite materials have been introduced in the automobilist industry, because those materials show an excellent relation of strength/weight, providing a reduction of consume and the increase of load capacity. Those factors justify the increase of interest of industry and the necessity of optimization of those materials and of their process. For this research, the field of application will be the Baja SAE Project, a project that is fully developed by engineering students, where they build a prototype single seat, off-road category, for use on hilly slopes with obstacle. This research aims to study two key components of the prototype are made of composite materials, analyzing all the processing. In addition, there is the analysis of the viability of this production parts to a Baja SAE vehicle, in order to increase their performance and reduce their weight without reducing the safety and robustness of the prototype. It was possible to achieve weight reduction of the steering subsystem with manufacturing the flywheel hybrid composite (carbon/glass) and the replacement of SAE 1010 steel by hybrid composite (carbon/aramid) in CVT box. The importance of this study is to obtain a good project for the vehicle of technical and scientific manner, contributing to the know-how to the team and providing a basis for optimization for upcoming projects

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Pós-graduação em Medicina Veterinária - FCAV

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Pós-graduação em História - FCLAS

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Together with the increase of environmental degradation in the past few decades, the environmental education (EE) has emerged and grown all around the world. It is worrying the frequent assigning of stereotypes to the animals and the cases of disrespect to them. For these matters it was studied the presence and importance attributed to animals in the annals of six editions of an event of great significance in the field of Environmental Education, the meetings Pesquisa em Educação Ambiental (EPEAs). The animals were chosen for deserving more attention in the preservationist context, besides allowing the use of a great extent of activities in EE, regarding scholar and non-scholar organizations. The articles that presented descriptors related to animals in the title, keywords or abstract were analyzed in depth and characteristics such as segmentation of the studied population, locations where jobs tend to be performed, prevailing aspects and didactic material production, among others, were investigated and compared. It was also verified which current trends on Environmental Education currents are more frequently presented in the EPEAs articles, in order to map the Environmental Education in Brazil in the past few years, using as a basis an important theoretical framework in the area. Through the use of descriptors it was possible to define the articles that would be analyzed in depth, which is less than 6% of the total work published and represents that, until the sixth edition, the EPEAs have a minor amount of works concerning animal matters. In many of these articles animals were superficially worked, which demonstrates the necessity of approaches not only involving more the animals, but also addressing the complex environmental matter. Several trends were identified in various EE currents, coexisting and also conflicting in the field of Brazilian Environmental Education. It was observed, in several cases, two or more trend currents in the ...

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O trabalho teve por objetivo analisar a ascensão da China nos últimos anos e o impacto ambiental gerado por esse processo. Tal análise abordou os conceitos de desenvolvimento e desenvolvimento sustentável desde sua origem até a atualidade. Com foco no país objeto deste trabalho foram apresentadas as suas fontes de crescimento através de um panorama histórico-econômico e dados econômicos do período estudado de 1978 até 2012. Além disso, foi abordado de que maneira o processo acelerado de crescimento e desenvolvimento econômico do país afetou o meio ambiente, como resultado do processo de industrialização, das políticas de abertura a investimentos estrangeiros, entre outros fatores. Outra análise de destaque deste trabalho é o sobre o tamanho da população do país, sua demanda energética e indicadores ambientais que mostram a situação da China no que diz respeito ao meio ambiente e sustentabilidade. Por fim, o trabalho apresenta medidas e políticas propostas e adotadas pelo governo para proteger o meio ambiente e torná-lo sustentável. Verificou-se que o crescimento chinês esteve associado a forte poluição e degradação ambiental

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Pós-graduação em Engenharia Civil - FEIS

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Pós-graduação em Engenharia Mecânica - FEG

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Spills can ocurr during oil productive chain and contaminate various environments due to the toxicity of monoaromatics hidrocarbons. Toluene stands out for being agressive to the nervous sistem and teratogenic, with high mobility and solubility in water, which facilitates environmental impact. Studies show that fungi are potential aromatic compounds assimilators, encouraging new researches about its use on the recovery of contaminated sites. This study aimed to select and characterize fungus with potential for biorremediation of toluene. 50 fungi were selected of the Collection of Microorganisms of Interest for Oil Gas and Biofuels, of UNESP Rio Claro, all of which were isolated from sites contaminated with monoaromatic hydrocarbons. Two trials were realized to select the microorganism with greater potential. The first test evaluated fungal growth under toluene saturated atmosphere. 24 fungi were chosen because its greater biomass production to participate in the next trial, the degradation in plates test, where the blue redox agente, DCPIP, indicates the degradation reaction, turning colorless. From this teste was possible to select one isolate which showed higher growth and stronger medium discoloration as the microorganism with the greatest potential to assimilate toluene. The Trichoderma cf. koningii had its potential evaluated through gas cromatography. The experiment proved the efficiency of the methodology, with positives results from the method validation and the effectiveness demonstrated of the LA-PHA-PACK bottles to prevent the volatilization of toluene during the 21 days of experiment. Being reliable its use for monitoring toluene decay associating it with degradation. This results are important because there aren't many methodologies and vials efficient to the purpose of this work. In the present study the degradation rates demonstrated no significant decay of the concentration of hydrocarbon. That may be related to the...

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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O extraordinário desenvolvimento da produção avícola, particularmente no setor de frango de corte, tornou o Brasil um importante produtor e exportador de carne de frango. Esse fato aliado a proibição da utilização de cama de frango como ração para ruminantes pela Instrução Normativa nº15 de 17 de julho de 2001, fez com que este resíduo se tornasse um problema ecológico e de saúde pública de alta relevância, tanto pelo volume de resíduos gerado, quanto pela composição do mesmo, que pode conter diversos fármacos utilizados neste tipo de manejo, além de uréia, que após a oxidação natural no ambiente, resulta em nitrato que tem alto poder de contaminação de mananciais hídricos, principalmente subterrâneos. Dentre as substâncias que podem estar presentes na cama de frango, estão os antimicrobianos, utilizados como promotores de crescimento das aves. No Brasil, são pouquíssimos os trabalhos dedicados a investigar a ocorrência e o impacto ambiental de antimicrobianos. Desta maneira, este trabalho teve como objetivo otimizar e validar método para análise de três fluoroquinolonas (ciprofloxacina, norfloxacina e enrofloxacina) em cama de frango. O método estudado baseou-se em trabalhos da literatura em que moléculas similares foram analisadas em diversas matrizes, compreendendo a extração em ultrassom com acetonitrila acidificada com ácido acético (3% v/v) e análise por CLAE-FLU, modo isocrático com a fase móvel composta por 0,02 M H3PO4:ACN (83:17, v/v). Foram avaliados os parâmetros cromatográficos quanto à resolução, eficiência, linearidade e limites de detecção e quantif-1 para os três analitos. O tempo de análise do método cromatográfico otimizado é de 7,5 minutos. Avaliou-se também o efeito de matriz que foi significativo para norfloxacina e ciprofloxacina, correspondendo a 16 e 20%, respectivamente. Para a enrofloxacina a amostra...

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)