Index Catalog // ScholarsArchive@OSU

Advancement of Passive Sampling Applications for Assessing Contaminant Transport, Bioaccumulation, and Toxicity

Creator:: Minick, David J.
Abstract:: In the environment, it is the unbound fraction of chemical (Cfree) which is able to diffuse across environmental interfaces and biological membranes. It is therefore Cfree which drives many important biological-environmental processes including contaminant transport, bioaccumulation and toxicity. Passive sampling devices (PSDs) offer a simplified and more accurate approach for...
Resource Type:: Dissertation
Full Text:: . Kim Anderson. The opportunity to be part of the Food Safety and Environmental Stewardship (FSES) Lab

Analytical method development for the identification, detection, and quantification of emerging environmental contaminants in complex matrices

Creator:: Place, Benjamin J.
Abstract:: The development of analytical methods for emerging contaminants creates many unique challenges for analytical chemists. By their nature, emerging contaminants have inherent data gaps related to their environmental occurrence, fate, and impact. This dissertation is a compilation of three studies related to method development for the structural identification of emerging...
Resource Type:: Dissertation
Full Text:: J. Place for the degree of Doctor of Philosophy in Chemistry presented on July 23, 2012. Title

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

Creator:: Ruiz-Haas, Peter A.
Abstract:: New methods, sensors, and devices based on redox indicators were developed to monitor redox conditions in anoxic and anaerobic laboratory systems and the subsurface environment. The primary application was monitoring redox conditions during the dechlorination of tetrachioroethene (PCE) to ethene (ETH) in packed columns and microcosm bottles containing an enriched...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Chemistry presented on May 1, 2006. Title: Monitoring Redox

The Ecophysiology of Thiamine Deficiency Complex : Evaluating Sources of Thiaminase in Great Lakes Food Webs

Creator:: Evans, Allison N.
Abstract:: Thiamine (vitamin B₁) is required by all living organisms for carbohydrate metabolism and synthesis of amino acids. Thiamine deficiency is responsible for several related classes of early life stage mortality disorders in salmonines, including Thiamine Deficiency Complex (TDC) in the Laurentian Great Lakes, Cayuga Syndrome in the Finger Lakes, and...
Resource Type:: Dissertation
Full Text:: Lakes Food Webs Abstract approved

Mercury distribution in sediments and uptake into an aquatic food web at Cottage Grove Reservoir, Oregon

Creator:: Morgans, Donna L.
Abstract:: The Cottage Grove Reservoir has been impacted by a point source (Black Butte Mine), where mercury mining and processing has occurred within its watershed from the 1890's to the late 1960's. Total mercury concentrations in surface sediments transect samples, core samples, tributary samples, and representative food web species were measured...
Resource Type:: Masters Thesis
Full Text:: Distribution in Sediments and Uptake into an Aquatic Food Web at Cottage Grove Reservoir, Oregon Lawrence R

Polar organic compounds as tracers of environmental processes

Creator:: Medeiros, Patricia Matheus de
Abstract:: Sources of polar/water-soluble organic compounds conjunctly with apolar biomarkers were characterized in natural organic matter. This multi-biomarker approach was accomplished by a simple analytical method consisting of extraction with dichloromethane:methanol (2:1, v/v), silylation and analysis by gaschromatography- mass spectrometry (GC-MS). Polar and apolar biomarkers, derived mainly from higher plants and...
Resource Type:: Dissertation
Full Text:: at Oregon State University. His vast knowledge in organic chemistry together with his interest and

Determination of fluorochemicals in waste-dominated aqueous systems

Creator:: Huset, Carin A.
Abstract:: While fluorochemicals have been detected all over the world and in wastewater treatment plants, the effect of wastewater effluent on the receiving waters has not been evaluated. In the first study, the mass flow of fluorochemicals emanating from wastewater treatment plants along the Glatt River in Switzerland was evaluated. The...
Resource Type:: Dissertation
Full Text:: and Food Chemistry 2006, 54, 8385-8389. (81) Apelberg, B. J.; Goldman, L. R.; Calafat, A. M

Comprehensive, Low-Cost Wicking Microfluidic Analytical Devices for Clinical Diagnostics and Environmental Analysis

Creator:: Bandara, Gayan C.
Abstract:: Analytical techniques are utilized in a wide variety of applications. Traditionally, analytical measurements are achieved by trained personnel in a laboratory setting using expensive scientific instruments, which limits their applicability in resource-limited areas and point-of-care applications. Therefore, the concept of enabling these laboratory-based qualitative and quantitative assays in microfluidic device...
Resource Type:: Dissertation
Full Text:: Chemistry presented on May 29, 2019. Title: Comprehensive, Low-Cost Wicking Microfluidic Analytical

Effects of small molecule ligands on the conformational dynamics of the Farnesoid X Receptor ligand binding domain (FXR-LBD)

Creator:: Yang, Liping
Abstract:: The Farnesoid X Receptor (FXR) is a member of the nuclear receptor superfamily of transcription factors that plays a key role in the regulation of bile acids, lipid and glucose metabolisms. The regulative function of FXR is governed by conformational changes of the ligand binding domain (LBD) upon ligand binding....
Resource Type:: Dissertation
Full Text:: Yang for the degree of Doctor of Philosophy in Chemistry presented on May 14, 2014 Title: Effects

Poly- and perfluorinated alkyl substance release from landfills and landfill model reactors

Creator:: Allred, Brent McKay
Abstract:: Research and public concern of poly and perfluoroalkyl substances (PFASs) as environmental contaminants has increased significantly due to the increasing number of reports of their detection in humans and wildlife. PFASs have a number of commercial applications including surfactants, coatings, polymers, and levelers, which are used on consumer products like...
Resource Type:: Dissertation
Full Text:: Brent McKay Allred for the degree of Doctor of Philosophy in Chemistry presented on February 20, 2015

ScholarsArchive@OSU

Advancement of Passive Sampling Applications for Assessing Contaminant Transport, Bioaccumulation, and Toxicity

Analytical method development for the identification, detection, and quantification of emerging environmental contaminants in complex matrices

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

The Ecophysiology of Thiamine Deficiency Complex : Evaluating Sources of Thiaminase in Great Lakes Food Webs

Mercury distribution in sediments and uptake into an aquatic food web at Cottage Grove Reservoir, Oregon

Polar organic compounds as tracers of environmental processes

Determination of fluorochemicals in waste-dominated aqueous systems

Comprehensive, Low-Cost Wicking Microfluidic Analytical Devices for Clinical Diagnostics and Environmental Analysis

Effects of small molecule ligands on the conformational dynamics of the Farnesoid X Receptor ligand binding domain (FXR-LBD)

Poly- and perfluorinated alkyl substance release from landfills and landfill model reactors

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