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 157 for “"Environmentally relevant"”.
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Photochemistry of Polycyclic Aromatic Hydrocarbons with Environmentally Relevant Metals
<p>The details of the work presented in this dissertation focus on simulated reactions in the atmosphere and water systems between persistent aromatic compounds and varying species of metals with an emphasis on iron. Bulk water suspensions of a standard soil and polycyclic aromatic hydrocarbons …
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The effects of an environmentally relevant phthalate mixture on female reproduction
… information is available on the effects of an environmentally relevant phthalate mixture on female reproduction. Thus, the goal of my doctoral dissertation work was to examine the effects of an environmentally relevant phthalate mixture on female reproduction. Specifically, I examined the …
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The effects of environmentally relevant toxicants on female reproduction and embryo development
… the uterus. Specifically, it is unknown if environmentally and occupationally relevant doses of phthalates affect uterine morphology and function. Also, there are limited studies on the effects of phthalates on preimplantation embryos. Of these studies, most have shown that exposure to a …
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Developmental exposure to an environmentally relevant phthalate mixture impacts ovarian health in mice
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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The Effects of Aqueous Atorvastatin on Steroidogenesis of <i>Xenopus laevis</i> at Environmentally Relevant Concentrations
<p>Statin drugs are a class of drug that work to reduce endogenous production of cholesterol by competitively inhibiting 3-hydroxy-3-methyl-glutaryl-CoA reductase (<em>Hmgcr</em>) thus inhibiting production of mevalonic acid in the mevalonate pathway. Atorvastatin (Lipitor) is one of the most …
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The effects of environmentally relevant doses of perchlorate (ClO(4)(-)) on Rana pipiens metamorphosis and development
Perchlorate not only blocks the body's ability to incorporate iodine into T3 and T4 hormones through the sodium iodine symporter system, but also depletes the thyroid glands' internal stores of iodine. Many of the steps that regulate metamorphosis in amphibians are also triggered by thyroid …
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Effects of an environmentally relevant phthalate mixture on anxiety-like behavior, circadian activity, and neural gene expression
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Determining the differences in effect of chromate, chromite and chromium picolinate in rainbow trout (Oncorhynchus mykiss) at environmentally relevant concentrations
The Ring of Fire is a region in the James Bay Lowlands of northern Ontario that houses a rich deposit of chromite and is slated for mining development. The goals of this study were to better understand the relative effects of Cr6+ to Cr3+ in rainbow trout, identify potential protein biomarkers to …
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Design, synthesis and analysis of Isoreticular, 2-Periodic, Co(II)/(Mn(II) mixed- and Zn(II) single-ligand metal-organic frameworks for sorption of energy- and environmentally-relevant molecules
The study of porous materials, particularly Metal-Organic Frameworks (MOFs), has garnered significant attention due to their tunable structures and potential for diverse applications. MOFs, constructed from metal ions or clusters and organic ligands, offer structural versatility where the choice of …
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Understanding the Toxicity Effects of Nanostructures: I. Effect of Physico-chemical Properties on Environmentally Relevant Organismal Toxicity. II. Design of Novel Nanostructures to Reduce Environmental Toxicity while Retaining Functional Properties
… nanocubes, and silver nanowires) was examined in environmentally relevant and model organisms including Lolium multiflorum, Danio rerio, Caenorhabditis elegans, and the bacterial strains Escherichia coli, Pseudomonas aeruginosa, and Bacillus cereus to determine if the shape of the AgNM affected …
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Effects of Bisphenol-A and Styrene on Fertilization and Development of the Purple Sea Urchin (Strongylocentrotus purpuratus)
… spawning marine invertebrates, specifically at environmentally relevant concentrations. Purple sea urchins, <em>Strongylocentrotus purpuratus,</em> from the central coast of California, were utilized to examine effects of BPA and styrene on fertilization success and early development of …
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Hydrogen peroxide-induced genotoxicity and transgenerational implications in sea urchins
… and dilute rapidly within days and considered environmentally friendly. However, modelling studies showed persistence of H<sub>2</sub>O<sub>2</sub> up to 1km from release sites. H<sub>2</sub>O<sub>2</sub> is a known genotoxicant and this thesis investigates degradation rates and genotoxicity in …
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Photolysis Kinetics of Aromatic Pollutants in Liquid and Solid Environmental Condensed Phases
… ethylbenzene, xylenes (TEX) and anthracene under environmentally-relevant conditions in order to improve fate predictions. The photolysis kinetics of TEX in water, ice and at ice surfaces were investigated using environmentally-relevant wavelengths. Previously, photolysis has not been considered a …
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Circulating sex hormone levels in rats: a systematic analysis of the literature and perinatal BPA study
… disrupting chemical, bisphenol-A (BPA), at environmentally relevant ranges on the sex hormones, follicle-stimulating hormone (FSH), luteinizing hormone (LH), T, E2, and P4 in perinatally exposed, infantile rats. We found no effect of BPA on sex hormone levels in these rats, which is in both …
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Prenatal exposure to di-(2-ethylhexyl) phthalate and high-fat diet synergistically disrupts mouse fetal oogenesis and affects folliculogenesis
… are synergistic effects of DEHP exposure at an environmentally relevant level (20 µg/kg body weight/day) and high-fat diet on oogenesis and folliculogenesis. To fulfill that goal, female CD-1 mice were fed with a high-fat diet (45 kcal% fat) or a control diet (10 kcal% fat) one week before …
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Engineered Vesicles for Perchlorate Degradation
… that vesicles can provide a mechanism to utilize environmentally-relevant biological enzymes. When incorporated into a vesicle, the enzymes could be used outside of environmental conditions where they would normally be expressed by natural bacteria.
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The transgenerational effects of Di(2-ethylhexyl) phthalate on female reproduction in mice
… information is available on the effects of environmentally relevant DEHP exposure on female reproduction and even less information is available on the effects of DEHP on female reproduction across generations. Therefore, the goal of my doctoral dissertation work was to investigate the …
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Enzymes : the new water/wastewater treatment chemical
… (ACE), a natural mediator, were present. An environmentally relevant concentration of oxybenzone (10 µg/L) in primary effluent was removed below the detection limit after two hours of treatment with ABTS, and 95% was removed after two hours of treatment with ACE. Several mediator/oxybenzone …
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Development of a combined multi-sensor/signal processing architecture for improved in-situ quantification of the charge balance of natural waters
… for the in situ measurement of both major and environmentally relevant minor ions in fresh waters, namely Na+, K+, Ca2+, Mg2+, NH+4 , Cl-, NO-3 , and SO2-4 . The instrument is built on a hybrid multi-probe / signal processing architecture and is implemented using commercial sensor hardware …
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An assessment of endocrine disrupting potential of a New Zealand pulp and paper mill effluent using rainbow trout Oncorhynchus mykiss and mosquitofish Gambusia affinis
… mill effluent at a range of concentrations from environmentally relevant (10%) to 70% (v/v) in two exposure studies. During both 21- and 56-day exposures to 10% and 30% (v/v) effluent, no statistically significant impacts on spleen weight, liver weight, condition factor, and circulating …
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