Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 126 for “"Environmental Exposure"”.
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Topics in Bayesian Spatiotemporal Prediction of Environmental Exposure
… respiratory health risk associated with ozone exposure.</p>
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Concrete carbonation prediction for varying environmental exposure conditions
The Durability Index (DI) approach has been developed in South Africa, in order to improve the durability performance of reinforced concrete structures. The DI approach is based on durability index tests, which are linked to transport mechanisms related to particular deterioration processes …
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Genetic Determinants of ABCB1 Promoter Activity and Their Effects on Environmental Exposure
In utero exposure to xenobiotics, including medications and environmental agents, can lead to developmental and behavioral problems as well as cancer later in life. Efflux transporters, which are highly expressed in the human placenta, are key regulators of placental xenobiotic transfer from the …
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Effects of Surface Condition and Environmental Exposure on the Bond between CFRP and Steel
… components can degrade due to the surrounding environmental conditions, and are susceptible to corrosion damage when exposed to aggressive environments and deicing salts. The conventional methods for repairing steel structures can be labor-intensive and time-consuming, and add considerable …
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The influence of concrete mix composition and environmental exposure on long-term chloride ingress in concrete
… in concrete structures exposed to different environmental conditions in South Africa were investigated, aiming at improving service life prediction models for reinforced concrete structures situated in marine exposure classes. Time-dependent chloride ingress was measured over a period of …
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Badgers as a proxy for environmental exposure to potentially toxic elements and ecosystem level interactions in soils
… environment has seen unprecedented levels of environmental change. Steadily, but ever rapidly, the levels of environmental pollution, have continued to increase across the globe. Additionally, through industrial activity, agriculture, urbanisation and habitat destruction, the Earth has been …
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Thermal network model development for an extended range electric vehicle battery pack with experimental verification through dynamic environmental exposure
… modules, and on the pack’s response to ambient environmental influences. The thermal network was refined experimentally using heat flux and temperature measurements on a production vehicle battery pack. The initial model representing lab conditions produced simulation results with very good …
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Association between environmental exposure to pesticides and prevalence of asthma symptoms in rural children and adolescents living in agricultural settings in the Western Cape
… evidence on the association between pesticide exposure and child asthma related outcomes in agricultural settings and limited data in developing country settings. Objectives: This study investigated the association between children's exposure to pesticides and asthma related outcomes in rural …
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The relationship between environmental exposures to pesticides measured by means of environmental exposure indices and the anthropomentric outcomes of boys living on farms in the rural Western Cape
… of boys and results are conflicting. Pesticide environmental exposure indices have not previously been developed. To investigate the effect of pesticide exposure using environmental exposure indices on pubertal growth of boys...
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A case-control study of mesothelioma in South Africa
… of the study were: 1) to examine asbestos exposure of cases in detail with respect to source, risk occupations, fibre type and duration; 2) to determine relative risks for level (certainty) of exposure (definite, probable, possible, unlikely), for category of exposure (occupational, …
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Addressing the uncertain geographic context problem by advanced spatial analysis approaches based on GIS and GPS for environmental health studies
… the relationships among human movement, environmental context, and their effect on health outcomes. Considerable research has been conducted to advance our understanding of how environmental exposures affects health behaviors and outcomes. In many of these studies, however, environmental …
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ON THE USE OF ASBESTOS IN CENTRAL ASIAN COUNTRIES: FINDINGS IN POSTMORTEM LUNG SAMPLES, CHARACTERIZATION OF ASBESTOS-CONTAINING MATERIALS, ENVIRONMENTAL AND OCCUPATIONAL EXPOSURE. CASE STUDIES IN KYRGYZSTAN.
… the type of asbestos used, underreporting, low environmental exposure, and “controlled use” of chrysotile in manufacturing. This thesis aims to develop insights into asbestos production in Central Asia by analysing the chemical composition of asbestos samples taken in Kyrgyzstan; measuring the …
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A multiscale framework for the chemomechanical characterization of ancient heterogeneous materials
… years, ancient building materials have survived environmental exposure, modifications, and restorations, often to an extreme degree. These processes, which have occurred from antiquity all the way to the present, have resulted in materials that are poorly understood both chemically and …
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Change of heart: Rethinking the prescriptive medical environment
… culture, the complex relationship between environmental exposure and cure is one that is fundamental to the understanding of the medical sciences. The endeavor to more fully understand its complexities continues even in the light of what modern advances in medical technology have revealed …
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Determinants of occupational allergic respiratory disease and asthma in spice mill workers
… airborne spice and to determine the host and environmental risk factors associated with allergic respiratory disease among spice mill workers. A cross-sectional epidemiological study of 150 currently employed workers in a spice mill was conducted. Environmental exposure assessment entailed the …
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Understanding spatial and temporal aquatic exposure and hazards of contaminants of emerging concern.
… are of concern to both human and aquatic species exposure. However, we do not have a robust understanding of spatial and temporal exposure to a diverse range of CECs and how these dynamics influence water quality hazards. Here I examine the occurrence of multiple of these contaminants including …
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The study of occupational risk factors and interventions for baker's allergy and asthma among supermarket bakery workers
… were to: characterise asthma phenotypes and environmental exposure to flour allergens among bakers and modifying factors; study associations between phenotype and environmental exposure and identify potential modifying factors of this association; determine the effectiveness of specific …
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