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ScholarsArchive at Oregon State University
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The primary goal of this research project is to quantitatively measure the temporal scales of hyporheic exchange along a stream network. Our goal is to examine how hyporheic exchange varies with increasing stream size. Many previous studies focus...
2005-03-16 (iso8601)
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River regulation imposes changes in the supply of sediment and the frequency of competent flows. As a result, impounded rivers often exhibit downstream changes in channel processes, particle size, and morphology. The magnitude of change in...
1997-01-20 (iso8601)
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The 1994 Northridge and 1987 Whittier Narrows earthquakes warned Los Angeles residents of the threat of earthquakes due to unmapped, blind reverse faults and emphasized the importance of identifying and characterizing blind reverse faults in...
2001-06-05 (iso8601)
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Tree growth and soil nutrient responses to prescribed underburning were determined for a period of up to 12 years at four sites in northcentral and central Oregon ponderosa pine stands (Pinus ponderosa Dougl. ex Laws).
Differences reported are...
1992-10-15 (iso8601)
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Salal is plant species that is native to forestland throughout the PNW and northern California that has been identified as a competitor to early crop tree development. This study consisted of a field and a radioisotope laboratory study to test...
2008-07-11T19:58:37Z (iso8601)
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An intramolecular variant of the modified-Julia olefination was demonstrated by the synthesis of α,β-unsaturated lactones in a mild and (Z)-selective fashion. The lynchpin reagent (benzothiazol-2-sulfonyl) acetic acid was synthesized in a...
2008-07-11T22:48:32Z (iso8601)
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In 1976, cultural resource technicians for the Rogue River National Forest located a prehistoric archaeological site, 35JA85, while performing a survey for the proposed J. Herbert Stone Nursery. The site, situated next to Jackson Creek in the Bear...
1982-04-30 (iso8601)
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Kinematic tectonic models constrained by Airy isostatic equilibrium demonstrate the crustal-scale evolution of the Brooks Range during ocean basin closure, arc-continent collision, and exhumation of the orogen. The Bouguer gravity anomaly low that...
2000-05-23 (iso8601)
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A stalagmite (sample OCNM8-02A) collected from Oregon Caves National Monument (OCNM) was sampled for stable isotope ratios in order to develop a record of Pacific Northwest climate history. Nine U-series dates indicate that the record spans the...
2003-07-01 (iso8601)
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A low, but significant, fraction of the carbohydrate portion of herbaceous biomass may be composed of fructose/fructosyl-containing components (“fructose equivalents”); such carbohydrates include sucrose, fructo-oligosaccharides, and fructans....
2008-06-06 (iso8601)
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Mass transfer processes were evaluated in an artificial, non-uniform porous medium with a power law distribution of diffusion rate coefficients obtained from physical characterization of solute and porous medium. Breakthrough curves of several...
2001-11-20 (iso8601)
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The encroachment of western juniper into mountain big sagebrush plant communities and the subsequent development of juniper stands results in significant changes in vegetation structure and complexity. This study described and compared vegetative...
2000-11-21 (iso8601)
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This dissertation focuses on the role of ice sheets in the transition during the middle Pleistocene (-1.2 Ma) from 41-kyr glacial cycles to 100-kyr glacial cycles. This research evaluates the hypothesis that the middle Pleistocene transition (MPT)...
2003-10-02 (iso8601)
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The synthesis of 3,3'-diphenylbenzopinacol was carried out both by means of the Grignard reaction between m-diphenyl magnesium iodide and benzil, and by reduction of m-phenyl benzophenone. The pinacol was rearranged and the products analyzed. The...
1939-05-05 (iso8601)
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I investigated survival, movements, home range sizes, and habitat selection of pygmy rabbits (Brachylagus idahoensis) in southeastern Oregon and northwestern Nevada from June 2005 to June 2007. I trapped 298 rabbits on four sites and fitted each...
2008-07-11T21:00:53Z (iso8601)
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Sustainable management of planted forests requires maintenance of soil function
to promote 1) root growth; 2) storage and cycling of water and nutrients; 3) optimal gas
exchange; and 4) biological activity. Soil quality measurements can be used...
2008-07-28T17:09:13Z (iso8601)
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This study examines the interactions between explosive environmental contaminants and marine seaweeds. The scope of this thesis includes studies done on the explosive RDX with tissue cultures of marine seaweeds, as well as studies on the explosive...
2008-07-11T20:20:13Z (iso8601)
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This thesis uses both feminist and new historic theories to argue that the women's romance novels The Last September (1929) by Elizabeth Bowen and The Country Girl's Trilogy (1960, 1962, 1964) by Edna O'Brien are tragic bildungsroman that subvert...
2008-06-04 (iso8601)
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CTIP2 is a C2H2 zinc finger transcription factor that plays important yet poorly understood roles in mouse development. CTIP2 is known to be highly expressed in the central nervous system, skin and T lymphocytes during embryogenesis. CTIP2-null...
2008-06-09 (iso8601)
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The results of an investigation into carrier dynamics in several novel functionalized and solution-processable pentacene and anthradithiophene derivatives are reported. Measurements were made of real-time photoresponse of polycrystalline thin...
2008-07-17T22:51:36Z (iso8601)
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The US bridal industry has grown over the last 80 years to become a multibillion
dollar industry. Surprisingly, little research has been conducted concerning
the consumer behavior of brides. The bride is in a situation where purchase
decisions...
2008-07-14T21:41:13Z (iso8601)
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Feeder dikes to the Columbia River Basalt Group (CRBG) large igneous province provide a rare opportunity to examine magma transport through the shallow crust during flood basalt eruptions. Over 70% of the CRBG erupted from the Chief Joseph dike...
2004-06-04 (iso8601)
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The scope of this particular research delves into the psychological measurement of
alumni that graduated from the College of Business at Oregon State University. The goal for
this research is to refine the pool of alumni survey items, and to...
2008-07-14T17:14:29Z (iso8601)
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In the thrust to shift away from fossil fuels towards renewable options, Ecuador produces African palm-based biodiesel, which is currently imported by the Unites States. An analysis of this specific interaction was done via personal contact with...
2008-07-14T17:17:41Z (iso8601)
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