984 resultados para Química ambiental - Teses - Jaboticabal (SP)


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Pós-graduação em Geografia - FCT

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Pós-graduação em Ciências Ambientais - Sorocaba

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Early this century, several crises are intertwined and the environmental crisis is the most global of them all. In this context, emerged as an environmental education learn to overcome the crisis. This article aims to discuss the ideas of biology teachers in the city of Piracicaba-SP on Environmental Education and from there to reflect on the theme of inclusion in the initial training of teachers. The methodology used a structured questionnaire-based instrument VOSTS (Views on Science-Technology-Society), produced by Aikenhead and Ryan (1992) and the data were analyzed qualitatively. The results indicate that the biology teachers surveyed still have a naive conception of environmental education and training courses need to commit to structural and curricular changes that make the effective insertion of the subject in teacher training in the region studied.

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In this paper, we aim at describing and assessing Environmental Education in Pedagogical Policy Projects (PPP) drawn by eight elementary schools belonging to the city school network of the city of Araraquara, in the State of São Paulo, Brazil. A framework was designed to detail references to topics and activities related to the environment contained in the respective PPP. Next, the information obtained was recorded under two categories: a) content and activities, and b) theoretical background. It was found that, although seven out of the eight PPP studied pointed to work towards environment-related topics, they do not enable the theoretical and methodological grounds behind their programmed actions be identified.

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Pós-graduação em Agronomia (Ciência do Solo) - FCAV

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Ciências Ambientais - Sorocaba

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The knowledge of how animals deposited chemical components as water, protein, fat and ash in the carcass is importance for the formulation of a balanced diet, allowing maximum performance with a low environmental impact. So, the study was carried out to evaluate the influence of different tilapia strains (Chitralada, Commercial, Red and Universidade Federal de Lavras [UFLA]) on the deposition of bodily chemical components in the carcass. The bodily components analyzed were water, protein, fat and ash. For the determination of the bodily chemical deposition curves by age, the exponential, Brody, logistic, Gompertz and von Bertalanffy models were adjusted. The Commercial and UFLA strains deposited water at a faster speed (P<0.05) compared with the remaining strains. As for protein, the Red strain had a lower estimated maturity weight (49.37 g), and was more precocious (202 days) with regard to maximum deposition in comparison to the other strains (Chitralada, UFLA and Commercial) in which there was an estimated maturity weight of 231.5 g and maximum depositionfor 337 days. There were no differences (P>0.05) for the logistic model parameter between Red, UFLA and Commercial strains for fat, which presented a maximum fat deposition (0.23 g) at 310 days of age. Regarding ash deposition, the Commercial strain presented a higher maximum deposition (0.10 g) at 337 days, occurring later than the other strains that presented maximum deposition (0.033g) at 254 days of age. Thus, it was concluded that the genetic strains evaluated differ in chemical deposition curves of water, protein, fat and ash.