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 15 of 15 for “"Diphenyl ethers"”.
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Biomonitoring polybrominated diphenyl ethers in lactating women
… for biomonitoring lipid-soluble polybrominated diphenyl ethers (PBDEs). The goal of this project was to determine the levels of PBDEs in breast milk of lactating women from the Seacoast region of New Hampshire and to examine potential relationships between PBDE levels in breast milk and stage of …
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THE BIOAVAILABILITY OF BROMINATED DIPHENYL ETHERS FROM URBAN ESTUARINE SEDIMENTS TO DEPOSIT-FEEDING INVERTEBRATES
Brominated diphenyl ethers (BDEs) are organic chemicals used as flame retardants that have become ubiquitous in the environment. Sediment exposure assessments have not been conducted for BDEs and are necessary for understanding their potential impacts in coastal environments. Field studies and …
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Designing quantitative structure activity relationships (QSAR) to predict specific toxic endpoints for polybrominated diphenyl ethers (PBDE) in mammalian cell culture systems.
Polybrominated diphenyl ethers (PBDEs) are becoming increasingly known as effective flame retardants and have vast industrial application in products like plastics, building materials, and textiles. They are found to be structurally similar to thyroid hormones that are responsible for regulating …
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Métodos analíticos para la determinación de compuestos disruptores endocrinos
… difenilo bromados 1. Determination of brominated diphenyl ethers (from mono- to hexa- congeners) in indoor dust by pressurized liquid extraction with in cell clean-up and gas chromatography - mass spectrometry M.P. Martínez, J.D. Carrillo and M.T. Tena, Analytical and Bioanalytical Chemistry 397 …
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Associations of Persistent Organic Pollutants Exposure with Coronary Heart Disease and Hearing Loss
… significant positive association. Polybrominated Diphenyl Ethers (PBDEs) were positively associated with hearing loss and elevated hearing thresholds, while phenobarbital-type inducing polychlorinated biphenyls (PHBB-PCBs) demonstrated a non-linear relationship with hearing loss. Additionally, …
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High-throughput analytical methods for persistent organic pollutants in high-lipid matrices.
… polychlorinated biphenyls, and polybrominated diphenyl ethers). Analytical methods for lipid-rich matrices, such as marine mammal blubber (Weddell seal Leptonychotes weddelli and bowhead whale blubber Balaena mysticetus) and whale earwax (blue whale Balaenoptera musculus), were developed and …
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Synthesis and Evaluation of Naturally Occuring Halogenated Bipyrroles in a Relevant Marine Species, Fundulus Heteroclitus
… biphenyls (PBBs), and polybrominated diphenyl ethers (PBDEs). Environmental health concerns exists regarding these naturally occurring HDBPs because several of these analogs were shown to induce the cytochrome P4501A (CYP1A) gene through activation of the AhR signaling pathway, similar …
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Modeling The Impact Of Sediment Resuspension And Flocculation On The Fate Of Polychlorinated Biphenyls
… biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Sorption to resuspended particles and sediments plays an important role controlling the water column residence times and spatial distributions of HOC in aquatic environments. Pollutant residence times and the time required …
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Estrogenic Activity of the Polybrominated Diphenyl Ether Flame Retardant Mixture DE-71
Polybrominated diphenyl ethers (PBDEs) are widely used flame retardants suspected to act as endocrine disruptors. We tested the commercial PBDE mixture DE-71 and its in vivo metabolites for estrogenic activity. MCF-7 breast cancer cells culture, ERE-luciferase gene expression, 3H-β-estradiol …
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Development of a surface-enhanced Raman sensor for detection in complex mixtures.
… polychlorinated biphenyls and polybrominated diphenyl ethers. I was able to show that our substrate made it possible to detect and discriminate between structurally similar analytes in the presence of interfering species at environmentally relevant concentrations. The final chapter of this …
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Effects of PCBs and PBDEs on response inhibition and dopaminergic signaling
… biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are persistent environmental contaminants that share physical and neurotoxic properties. Developmental PCB exposure has been associated with impulsive behavior in laboratory species and human cohorts, while little is known …
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Ecotoxicology and environmental education in the development of a turtle conservation program in Southeastern Tennessee
… polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and a suite of organochlorine pesticides including DDT, mirex and hexachlorobenzene. The second objective was to examine possible differences in their concentration based on two parameters, species and gender. The final …
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Characterizing the Binding Potential, Activity, and Bioaccessibility of Peroxisome Proliferator Activated Receptor Gamma (PPARγ) Ligands in Indoor Dust
… flame retardants such as polybrominated diphenyl ethers (PBDEs) and Firemaster 550 (FM550), and other SVOCs such as phthalates, organotins, halogenated phenols and bisphenols. Additional attention was also given to the potential activity of the major metabolites of several of these …