Index Catalog // ScholarsArchive@OSU

In situ transformation of toluene and xylene to benzylsuccinic acid analogs in contaminated groundwater

Creator:: Reusser, Dominik E.
Abstract:: The rate of removal of benzene, toluene, ethylbenzene and the xylene isomers (BTEX) from contaminated groundwater is needed to design remediation processes. Benzylsuccinic acid (BSA) and methyl-benzylsuccinic acid (methyl BSA) are unambiguous metabolites of anaerobic BTEX biodegradation. An analytical method for quantitative determination of BSA in groundwater samples was developed....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Dominik E. Reusser for the degree

Phytophthora ramorum within an Oregon tanoak forest : quantifying inoculum within canopy throughfall vs. soil splash

Creator:: Benemann, Silvia, E.
Abstract:: Phytophthora ramorum continues to cause extensive mortality of tanoaks in southwestern Oregon. Rain readily washes inoculum down through the canopy, causing new infections on the lower parts of the tree and neighboring host plants. Although this aspect of dispersal is well understood, the relative importance of infested soil and leaf...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Silvia E. Benemann for the degree of Master of Science in Botany

Measuring in situ biotransformation in BTEX-contaminated groundwater

Creator:: Alumbaugh, Robert E.
Abstract:: Benzylsuccinate (BSA), methylbenzylsuccinate (methylBSA), and ethylbenzylsuccinate (ethylBSA) are unambiguous anaerobic biotransformation products from toluene, xylenes, and ethylbenzene decay, respectively, and may be used to indicate intrinsic bioremediation is occurring at hydrocarbon-contaminated sites. In order to improve upon current methods that detect and quantify anaerobic hydrocarbon metabolites in field samples, solid-phase-extraction...
Resource Type:: Masters Thesis
Full Text:: LCJMSJMS Robert E. Alumbaugh,' Lisa M. Gieg,c and Jennifer A. Field" aDepartment of Chemistry and

Atmospheric and Sea Ice Circulation Patterns During Lead Formation at Point Barrow

Creator:: Jewell, MacKenzie E.
Abstract:: In winter and spring, ice-coast interactions driven by winds and ocean currents cause sea ice fractures (leads) to form repeatedly along Arctic coastlines. These events are often associated with rapid and expansive changes in sea ice drift and state that are challenging to predict and represent in models. We investigate...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF MacKenzie E

The effects of Phytophthora ramorum infection on hydraulic conductivity and tylosis formation in tanoak sapwood

Creator:: Collins, Bradley R.
Abstract:: Tanoak (Lithocarpus densiflorus), along with some other members of Fagaceae, are susceptible to sudden oak death caused by the oomycete Phytophthora ramorum. Symptoms of the disease include dying crowns, bleeding cankers, and eventually death of infected trees. The cause of mortality is not well understood, but recent research indicates that...
Resource Type:: Masters Thesis
Full Text:: _____________________________________________________________________ Jennifer L. Parke Tanoak (Lithocarpus densiflorus), along with some other members of

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Creator:: Chiaia Hernandez, Aurea C.
Abstract:: A sensitive, selective, rapid analytical method based on large-volume injection (LVI) liquid chromatography/ tandem mass spectrometry was developed using commercially-available hardware that eliminates the need for either off-line or on-line solid phase extraction. Centrifugation followed by the direct injection of 1,800 µL was used for the quantification of illicit drugs,...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _____________________________________________________________________ Jennifer A

Soil quality assessment of Willamette Valley soils and root colonization potential by arbuscular mycorrhizal fungi

Creator:: Allen, Natalie M.
Abstract:: Interest in measuring soil quality continues to increase worldwide in view of demands on land productivity and the necessity to preserve soil resources, yet identification of suitable indicators for soil quality assessment is still evolving. This study adapted 10 biological, physical, and chemical indicators of soil quality identified by the...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Jennifer L. Parke

The effects of Phytophthora ramorum stem inoculation on aspects of tanoak physiology and xylem function in saplings and seedlings

Creator:: Stamm, Elizabeth A.
Abstract:: Phytophthora ramorum, an oomycete plant pathogen, is the causal agent of sudden oak death, a serious disease of Fagaceous trees in California and Oregon over the last decade. Tanoak (Notholithocarpus densiflorus) is one of the most susceptible host species, but the cause of host mortality is poorly understood. Previous research...
Resource Type:: Masters Thesis
Full Text::   Tanoak Physiology and Xylem Function in Saplings and Seedlings    Abstract approved    Jennifer L

The immunomodulatory role of canine mesenchymal stem cell-derived extracellular vesicles

Creator:: Phelps, Shannon M.
Abstract:: Immune-mediated diseases are a frequent cause of morbidity and mortality in canine patients. Treatments currently involve generalized suppression of the immune system, and corticosteroids are often used as a first-line agent. While often effective, corticosteroids are unlikely to induce remission without substantial side effects. Second-line immunosuppressive agents may be effective...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ___________________________ Jennifer Johns Abstract: Immune

Residents’ drivers and barriers to participation in the Backyard Habitat Certification Program : Study of socio-ecological factors in Madison South neighborhood in NE Portland

Creator:: Powel, Jinnet
Abstract:: As urban development fractures and reduces available habitat for birds and other wildlife, conservationists are increasing pursuing strategies to improve the habitat value of privately owned yards in and around cities. The Backyard Habitat Certification Program is a collaborative effort between the Portland Audubon Society and the Columbia Land Trust...
Resource Type:: Capstone Project

ScholarsArchive@OSU

In situ transformation of toluene and xylene to benzylsuccinic acid analogs in contaminated groundwater

Phytophthora ramorum within an Oregon tanoak forest : quantifying inoculum within canopy throughfall vs. soil splash

Measuring in situ biotransformation in BTEX-contaminated groundwater

Atmospheric and Sea Ice Circulation Patterns During Lead Formation at Point Barrow

The effects of Phytophthora ramorum infection on hydraulic conductivity and tylosis formation in tanoak sapwood

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Soil quality assessment of Willamette Valley soils and root colonization potential by arbuscular mycorrhizal fungi

The effects of Phytophthora ramorum stem inoculation on aspects of tanoak physiology and xylem function in saplings and seedlings

The immunomodulatory role of canine mesenchymal stem cell-derived extracellular vesicles

Residents’ drivers and barriers to participation in the Backyard Habitat Certification Program : Study of socio-ecological factors in Madison South neighborhood in NE Portland

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