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 8 of 8 for “"exposure route"”.
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Comparative Bioavailability of Dietary and Dissolved Cadmium to Freshwater Aquatic Snails
… may occur through direct or indirect uptake routes. Research indicates that the significance of uptake route varies with contaminant and organism exposed. The relative importance of different metal sources in aquatic systems was investigated by exposing freshwater snails to dietary or …
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Characterization of Shiga-toxin Producing Escherichia coli Infections and Cryptosporidiosis in South Dakota with Respect to Animal Exposures, 2012
… has been identified as one of the many possible routes of exposure. Ruminant animals may act as sub-clinical carriers of STEC, while young ruminants with clinical signs of diarrhea are common sources of zoonotic strains of<em> Cryptosporidium</em>. Patients reported with either STEC or …
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Toxicity of chlorpyrifos adsorbed on clay and humic acid to larval walleye
… is a reliable and sensitive indicator of OP exposure to walleye and is not affected by environmental factors. Prolarvae (yolk-sac larvae) were the least sensitive larval stage, but there was a significant increase in toxicity of chlorpyrifos from the postlarvae I to postlarvae II stage. The …
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Development of a PBPK-based health risk assessment framework for exposure to cerium, gold, silver and titanium engineered nanoparticles
… ceria nanoparticles is largely dependent on the exposure route and dose. The time courses for various tissues for intravenously (IV) administered 5 nm ceria were well articulated by the model. Biokinetics of the liver and spleen were well articulated for 30 nm ceria whereas biokinetics for other …
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Inter-varietal variation in elemental uptake by rice and its implications for public health : a case study of Dareta village, Zamfara State, Nigeria
… through rice which was identified as a major exposure route. Thereis a need to understand the extent to which different rice varieties accumulate Pb and whether varietalselection could be used to reduce dietary Pb exposure.Whilst the Pb poisoning is having a truly devastating consequence, the …
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Comparative Toxicity of Eight Model Substances to the Sediment Dwelling Invertebrates Lumbriculus variegatus and Chironomus riparius
… organisms. Acute toxicity tests, via water-only exposure, and sediment toxicity tests were conducted with the two endobenthic invertebrates. In sediment toxicity tests, organisms are mainly exposed to sediment- and particle-bound chemicals and dissolved chemical in the pore water. Toxicity data …
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The effects of metal contamination on larval white sturgeon in the upper Columbia River
… of exposed fish as a consequence of sublethal exposures. In chapter 1, I exposed early life stage white sturgeon to sublethal concentrations of copper, one of the contaminants of concern in the UCR, to characterize and quantify the effects of copper on swimming and feeding behavior. I found …
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Evaluación toxicológica de cilindrospermopsina mediante modelos experimentales in vivo e in vitro: daños producidos por estrés oxidativo y potencial efectividad de n-acetilcisteína para contrarrestarlos
… IMPLICATION IN THE EFFECTS OBSERVED BY EXPOSURE OF THE LIVER FISH CELL LINE PLHC-1 TO PURE CYLINDROSPERMOPSIN (Gutiérrez-Praena y col., 2011. Ecotoxicology and Environmental Safety 74, 1567-72) La CYN es una cianotoxina que se encuentra, en gran parte, de forma libre disuelta en el …