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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Global positioning system (GPS) tracking to characterize children's exposure to pesticides /

Elgethun, Kai. January 2004 (has links)
Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (leaves 222-237).
22

Der Bleigehalt von Dentin und Zement an jugendlichen Praemolaren

Schildknecht, Eugen, January 1976 (has links)
Thesis (Doctoral)--Universität Zürich, 1976.
23

Modulation of glutathione associated with methylmercury exposure in mice /

Thompson, Sally A. January 1996 (has links)
Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [116]-124).
24

Gene by smoking interaction in blood pressure.

Montasser, May E. Smith, Mary Ann, January 2008 (has links)
Thesis (Ph. D.)--University of Texas Health Science Center at Houston, School of Public Health, 2008. / Source: Dissertation Abstracts International, Volume: 69-02, Section: B, page: 0811. Includes bibliographical references.
25

Estudo comparado das percepções de risco nuclear e ambiental / A compartive study of the perceptions of nuclear and environmental risk

BOEMER, VERONICA A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:33:48Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:26Z (GMT). No. of bitstreams: 0 / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
26

Diagnóstico ambiental das áreas susceptíveis a contaminação por metais no pólo industrial de fundição em Loanda, Paraná

PAVANELLI, LUCIANA da C. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:54:35Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:07:44Z (GMT). No. of bitstreams: 0 / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP
27

Biologický monitoring - jeho možnosti a omezení / Human biomonitoring - opportunities and limitations

Weissová, Iveta January 2010 (has links)
Human biomonitoring is a term for colleting and evaluating data concerning the pollution of environment and its influence on human body. In the CR it is being conducted since 1994 and its main aim is to protect people's health. The most commonly observed pollutants are heavy metals, PCBs, dioxins, chlorinated pesticides and many others. These pollutants find their way to the environment mainly due to people's industrial and agricultural activities. Smoking is still a current issue that needs to be addressed and it is an activity (voluntarily or in case of passive smoking involuntarily practiced) that causes health damage. Due to human biomonitoring, or more precisely due to principles which are now its foundation, many shortcomings of former industrial activities were discovered. Among others, it leads to understanding "Itai-itai" disease and discovering the cause of events in Japanese bay "Minamata". Today, the industrial (but also other) activities worldwide are at a high level of development. Many chemicals are being used and the environment is still being threatened. Based on those facts it is necessary to continually monitor the presence of toxic (or potentially toxic) substances in the environment and to put forth an extra effort to prevent exposure to these substances. Human biomonitoring is also...
28

Estudo comparado das percepções de risco nuclear e ambiental / A compartive study of the perceptions of nuclear and environmental risk

BOEMER, VERONICA A. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:33:48Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:26Z (GMT). No. of bitstreams: 0 / Com a necessidade de novas formas de produção de energia para conter a crise ambiental e o aquecimento global, novas tecnologias têm sido estudadas e a energia nuclear foi apontada como uma das saídas para a produção de energia limpa. O estudo do risco está diretamente relacionado ao estudo de sua percepção, que determina a maneira de agir do ser humano e, portanto influencia na aplicação de novas tecnologias, uma vez que o reconhecimento de algo como perigoso é determinado por fatores sócio históricos. Este estudo teve como objetivo comparar as percepções de risco nuclear e ambiental, em um grupo de estudantes universitários, com a aplicação de uma pesquisa, no período de 31 de março a 31 de maio de 2010, contendo: imagens de fatos históricos para serem nomeados; estruturação de uma escala de risco para determinadas atividades; e um questionário sobre riscos e benefícios relacionados ao tema da pesquisa. A análise dos resultados evidenciou uma diminuição da percepção do risco nuclear em relação ao risco ambiental na população estudada. / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
29

Diagnóstico ambiental das áreas susceptíveis a contaminação por metais no pólo industrial de fundição em Loanda, Paraná

PAVANELLI, LUCIANA da C. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:54:35Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:07:44Z (GMT). No. of bitstreams: 0 / As indústrias de fundição e galvanoplastia têm sido investigadas visando melhorar seu processo produtivo de forma a eliminar os possíveis impactos ambientais e melhorar a qualidade de vida e a saúde pública. Na cidade de Loanda-PR existem 23 empresas desse ramo. No presente estudo foi realizada uma avaliação ambiental em amostras de solo coletadas ao redor da maior indústria da região, através da caracterização físico-química do solo e da determinação da concentração dos metais e elementos traço (Ag, Al, Cd, Cr, Co, Cu, Fe, Mg, Mn, Ni, Pb, V, Zn) extraídos por HNO3, para determinação da fração parcial do metal, e por EDTA, para determinação da mobilidade dos metais. O solo da região apresentou-se arenoso, ácido e com baixos índices de matéria orgânica e capacidade de troca catiônica. A determinação dos metais mostrou incremento de Cu, Zn, Cr, Ni e Pb apenas nos pontos adjacentes à indústria e um alto índice de mobilidade de Cr e Ni. Isso mostra que o solo da região não requer remediação, porém, ainda existe uma preocupação com o lençol freático. Evidencia também a necessidade urgente de melhorias no processo produtivo. / Dissertação (Mestrado) / IPEN/D / Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP
30

Examination of the Relationships Between Environmental Exposures to Volatile Organic Compounds and Biochemical Liver Tests: Application of Canonical Correlation Analysis

Liu, Jing, Drane, Wanzer, Liu, Xuefeng, Wu, Tiejian 01 February 2009 (has links)
This study was to explore the relationships between personal exposure to 10 volatile organic compounds (VOCs) and biochemical liver tests with the application of canonical correlation analysis. Data from a subsample of the 1999-2000 National Health and Nutrition Examination Survey were used. Serum albumin, total bilirubin (TB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), alkaline phosphatase (ALP), and γ-glutamyl transferase (GGT) served as the outcome variables. Personal exposures to benzene, chloroform, ethylbenzene, tetrachloroethene, toluene, trichloroethene, o-xylene, m-,p-xylene, 1,4-dichlorobenzene, and methyl tert-butyl ether (MTBE) were assessed through the use of passive exposure monitors worn by study participants. The first two canonical correlations were 0.3218 and 0.2575, suggesting a positive correlation mainly between the six VOCs (benzene, ethylbenzene, toluene, o-xylene, m-,p-xylene, and MTBE) and the three biochemical liver tests (albumin, ALP, and GGT) and a positive correlation mainly between the two VOCs (1,4-dichlorobenzene and tetrachloroethene) and the two biochemical liver tests (LDH and TB). Subsequent multiple linear regressions show that exposure to benzene, toluene, or MTBE was associated with serum albumin, while exposure to tetrachloroethene was associated with LDH and total bilirubin. In conclusion, exposure to certain VOCs as a group or individually may influence certain biochemical liver test results in the general population.

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