Environmental Laboratories
Mostrando 13-24 de 69 artigos, teses e dissertações.
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13. A study of using recycled aggregates in Portland concrete mixes for pavements / Estudo da utilização de agregado reciclado em misturas de concreto de cimento Portland para pavimentação
The objective of this research is to contribute to the study of the recycled aggregate use in concrete Portland. It is compared the performance of these mixtures presented with the deriving aggregates and the rubbish of technological control laboratories, which the use minimizes the problematic deposition in sanitary earthworks, contributing in this way to t
Publicado em: 2008
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14. Os objetos e os ambientes físicos para a saúde: um olhar com ciência e arte sobre os laboratórios do Instituto Oswaldo Cruz - Fiocruz. / Objects and physical environments for health: a science and art look over Oswaldo Cruz Institute Laboratories.
O trabalho traz um novo olhar sobre os objetos e ambientes físicos destinados às atividades de pesquisa e ensino em saúde. Investigamos aspectos relativos ao bem-estar físico e emocional dos usuários de ambientes de saúde no contexto dos Laboratórios de Pesquisa em saúde do Instituto Oswaldo Cruz - unidade técnico-científica da Fundação Oswaldo C
Publicado em: 2008
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15. Caracterização hidrogeológica do aquífero cauê, quadrilátero ferrífero, MG: Subsídios para a gestão dos recursos hídricos no quadrilátero ferrífero
The Cauê aquifer encompasses the geological unit that is the host of the Iron Quadrangle bodies of iron ore (Cauê formation). It has got significant hydrogeological potential, which is used for part of the water supply for Belo Horizontes metropolitan area, and has got a fundamental importance for the maintenance of the general environmental conditions of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2007
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16. GESTÃO AMBIENTAL EM BACIAS HIDROGRÁFICAS / ENVIRONMENTAL MANAGEMENT IN HYDROGRAPHIC BASINS
The hydrographic basins are being occupied in an inadequate manner, which leads to a deterioration of the natural resources (Water Resources, Flora, Fauna, Soils and Air). The anthropical actions occur due to the inadequate use of the soil, in total disrespect as to the earth use capacity. The deforestation of the water spring, permanent preservation areas,
Publicado em: 2007
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17. Characterization of the RNA Polymerase B Transcricional Factor 3 (btf3) of Trichoderma reesei and the effect of its knockout on gene expression in stress by heat shock / Caracterização do gene do Fator Transcricional 3 da RNA Polimerase B (btf3) de Trichoderma reesei e o efeito de seu nocaute sobre a expressão gênica no estresse por choque térmico
Transcription by RNA polymerase II (RNA polymerase B) and protein synthesis are the most important metabolic processes in eukaryotic cells, and they are involved in the control of gene expression. Trichoderma reesei was used as model of study for the development of this study. This filamentous fungus is a microorganism that has been used by some laboratories
Publicado em: 2007
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18. Life cicle aspects of endemic benthic species and its aplication on the sediment quality assesments of natural lakes and reservoirs / Aspectos do ciclo de vida de espécies bentônicas nativas e sua utilização na avaliação da qualidade de sedimentos de lagos naturais e reservatórios
The ecological studies, with views for the conservation of the environment, have been intensified from middles of the century XX. Due to the integration with several other sciences during the process of ecological knowledge formation, those studies have become essential to the development of technologies and appropriate politics for the administration of the
Publicado em: 2007
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19. Metodologia de datação em carbonatos pela série de desequilíbrio do urânio por espectrometria de massa
There are many dating methods largely used according to the kind of material to be dated. Methods that rely on the time-dependency of geochemical disequilibrium 238 235 232 U, U and Th natural decay system, between daughter and parent isotope, from the whose final members are stable Pb isotopes, are the most useful in a broader variety of geological, hydrolo
Publicado em: 2006
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20. Geoquímica de sedimentos de fundo dos rios Trairí, Ararí e da Laguna Nísia Floresta (RN)
The metal concentrations (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn ) and phosforus(P) had been determined analyzed through Plasma Inductively Coupled Plasme Mass Spectrometer for fine fraction, <0,63 mm in 22 samples. The sample preparation for analysis had been make in the laboratories of geology of the UFRN. This samples procedures consists in register, dry,
Publicado em: 2006
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21. SEMI-EMPIRICAL SIMULATION OF THERMOLUMINESCENT RESPONSE UNDER DIFFERENT FILTER GEOMETRIES / "Simulação semi-empírica da resposta termoluminescente sob diferentes geometrias de filtro"
Many thermoluminescent materials has been developed and used for photon personal dosimetry but no one has all desired characteristics alone. These characteristics include robustness, high sensitivity, energy photon independence, large range of photon energy detection, good reproductibility, small fading and simple glow curve with peaks above 150oC. Calcium S
Publicado em: 2006
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22. "Desenvolvimento de eletrodos de troca iônica eletroquímica para o tratamento de rejeitos contendo íons Cromo ou Césio" / DEVELOPMENT OF ELECTROCHEMICAL ION EXCHANGE ELECTRODES FOR THE TREATMENT OF WASTES CONTAINING CHROMIUM OR CESIUM IONS
Nowadays, environmental preservation using technologies that do not attack it, generating non-toxic residues and reduced volumes, has been discussed. Hazardous effluents, containing metals, as chromium, have been poured in the soils and rivers, degrading the water. Not different are the problems originated from some nuclear activities that generate wastes, a
Publicado em: 2006
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23. Implantação de um programa de gerenciamento de resíduos químicos e águas servidas nos laboratórios de ensino e pesquisa no CENA/USP
The aim of this work is to establish a program for the treatment of chemical residues and waste waters at the Centro de Energia Nuclear na Agricultura (CENA/USP), for environmental preservation and training of staff. Five tons of stored residues and the ones currently generated in the laboratories have to be treated. Rational use of water is also part of the
Química Nova. Publicado em: 2005-08
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24. Relato de uma experiência pedagógica no ensino de química: formação profissional com responsabilidade ambiental
The toxic heavy metals can not be transformed in other less toxic substances as organic wastes through chemical process. Various chemistry courses at Faculty of Philosophy, Sciences and Humanities (FFCLRP/USP) use heavy metals in their experimental classes. In this context, a course were created: "Heavy Metal Wastes generated in the teaching and research lab
Química Nova. Publicado em: 2003-08