Index Catalog // ScholarsArchive@OSU

Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes

Creator:: Niswander, Steven Francis
Abstract:: Five unique but related studies were conducted at the Oregon State University Dairy Wetland Treatment System (OSUDWTS), Corvallis, OR. The research site consisted of six parallel wetland cells, which were built in 1992 and began receiving concentrated dairy wastewater in the fall of 1993. Hydrologic, hydraulic, and water quality data...
Resource Type:: Dissertation
Full Text:: Taro Field Florida U.S.A. 0.74-0.95 * values in parentheses indicate range of monthly coefficients

John Archibald Wheeler : a study of mentoring in modern physics

Creator:: Christensen, Terry M.
Abstract:: This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
Resource Type:: Dissertation

An economic analysis of small-holders agriculture in the central highlands of Ethiopia : a system simulation approach

Creator:: Bellete, Solomon
Abstract:: In the majority of the less developed countries the small-scale peasant agriculture is the dominant sector of the countries' economies. The successes of major agricultural programs in order to increase the potentials depend primarily on the understanding of the economic organizations of the peasant households. This study analyzed over a...
Resource Type:: Dissertation

An analysis of trustee role perceptions in the state controlled Washington community college system and the locally controlled Oregon community college system and the relationship between trustee personal characteristics and these role perceptions

Creator:: Boyse, Peter Dent
Abstract:: This study examined the role perceptions of trustees in the locally controlled Oregon community college system and the state controlled Washington community college system. Authorities in the literature were consulted to define the "ideal trustee role" and the study determined which governance system was most effective in fostering this "ideal...
Resource Type:: Dissertation

Natural products from tropical and temperate marine algae

Creator:: Bernart, Matthew W.
Abstract:: Following surveys of seaweeds in Oregon and the Caribbean, four algal species were selected for study on the basis of their crude extract biological activity or thin-layer chromatographic characteristics. Extracts were fractionated by normal phase chromatography, including high performance liquid chromatography (HPLC). Derivatives (methyl esters, acetates, and benzoates) of natural...
Resource Type:: Dissertation
Full Text:: , volatile aldehydes are antimicrobial. An 18 antifungal compound from the taro plant Colocasia

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Creator:: Jorgensen, Clive Darrel
Abstract:: The ecological interrelationships of mites occurring in and near the Hood River Valley, Oregon, pome fruit orchards were investigated to determine the possibility of an integrated control program using the species already present. Survey sampling methods were used to study mites on wild hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
Resource Type:: Dissertation

An analysis of a computer-assisted laboratory method of instruction in elementary business statistics

Creator:: Varin, Dennis Lawrence
Abstract:: This was an experimental study designed to compare the effectiveness of computer-assisted laboratory instruction to teacher-assisted laboratory instruction based on student achievement in Elementary Business Statistics. Computer-assisted laboratory materials and an Elementary Business Statistics achievement test were evaluated. Procedures The setting of this experiment was at Southern Oregon State College,...
Resource Type:: Dissertation

Oxylipins from temperate marine algae and a photoprotective sheath pigment from blue-green algae

Creator:: Proteau, Philip J.
Resource Type:: Dissertation
Full Text:: for this antifungal activity.36 Taro tubers produce the fatty acid 9, 12, 13-trihydroxy-10E

Inferring Patterns and Processes of Emergence in Clonal Phytophthora Epidemics using Population Genomic Approaches

Creator:: Cauldron, Nicholas C.
Abstract:: Oomycete and fungal pathogens threaten food, fiber, and forests around the world. With climate change, these pathogens are expected to emerge more frequently. Evolution can facilitate their emergence through mechanisms such as mutations that change or expand host range. Characterizing evolutionary mechanisms in plant pathogens will contribute to our ability...
Resource Type:: Dissertation

The NRF2-controlled Antioxidant Response, Alternative Forages, and Selenium supplementation for Improving Ruminant Productivity and Health

Creator:: Ford, Hunter
Abstract:: Oxidative dysfunction can affect dairy animals during periods of heightened stress, particularly during the transition from pregnancy to lactation and during diseases, such as intramammary infection (IMI), and can contribute to increased inflammation, immune dysfunction, and cell death. As such, methods for ameliorating oxidative stress and restoring redox regulation may...
Resource Type:: Dissertation

ScholarsArchive@OSU

Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes

John Archibald Wheeler : a study of mentoring in modern physics

An economic analysis of small-holders agriculture in the central highlands of Ethiopia : a system simulation approach

An analysis of trustee role perceptions in the state controlled Washington community college system and the locally controlled Oregon community college system and the relationship between trustee personal characteristics and these role perceptions

Natural products from tropical and temperate marine algae

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

An analysis of a computer-assisted laboratory method of instruction in elementary business statistics

Oxylipins from temperate marine algae and a photoprotective sheath pigment from blue-green algae

Inferring Patterns and Processes of Emergence in Clonal Phytophthora Epidemics using Population Genomic Approaches

The NRF2-controlled Antioxidant Response, Alternative Forages, and Selenium supplementation for Improving Ruminant Productivity and Health

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