Index Catalog // ScholarsArchive@OSU

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

Creator:: Arbic, Brian K., Scott, Robert B., Chelton, Dudley B., Richman, James G., and Shriver, Jay F.
Abstract:: This paper examines the effect of “stencil width” on surface ocean geostrophic velocity and vorticity estimated from differentiating gridded satellite altimeter sea surface height products. In oceanographic applications, the value of the first derivative at a central grid point is generally obtained by differencing the sea surface heights at adjacent...
Resource Type:: Article
Full Text:: . Arbic,1 Robert B. Scott,2,3 Dudley B. Chelton,4 James G. Richman,5 and Jay F. Shriver5 Received 7 June

Native forb response to sulfometuron methyl on medusahead-invaded rangeland in Eastern Oregon

Creator:: Louhaichi, Mounir, Carpinelli, Michael F., Richman, Lesley M., and Johnson, Douglas E.
Abstract:: Medusahead [Taeniatherum caput-medusae (L.) Nevski], a non-native, winter-annual grass (Poaceae), has invaded rangelands throughout the western USA. Medusahead is an aggressive competitor that crowds out native plants and reduces forage for wildlife and livestock. Sulfometuron methyl is a sulfonylurea herbicide used to control medusahead, but its effect on non-target native...
Resource Type:: Article
Full Text:: increasing, as are impacts on native plant communities (James et al. 2008). Forage losses resulting

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Creator:: Shaw, Subrata
Abstract:: This thesis describes the development of a new enantioselective synthetic method employing chiral cis-2,5-diaminobicyclo[2.2.2]octane-based organometallic catalysts. The significance of this new method to organic synthesis is illustrated with preparation of enantioenriched products that are transformed to important pharmaceutical agents. Chapter 1 provides a brief historical overview of asymmetric catalysis, especially...
Resource Type:: Dissertation
Full Text:: [2.2.2]octane: A Novel C2-Symmetric Scaffold for Asymmetric Catalysis Abstract approved: James D

Tidal-band and high-frequency internal variability on the central Oregon inner shelf

Creator:: Suanda, Sutara H.
Abstract:: Analogous to ocean surface waves, waves in the ocean interior also experience steepening, breaking, and dissipation as they approach the coastline. Much less is known about this internal beach. In this work, extensive moored Acoustic Doppler Current Profiler and temperature/salinity data together with optical remote sensing are combined to describe...
Resource Type:: Dissertation
Full Text:: ). Because of these well-defined relationships, Levine and Richman (1989) introduce a decomposition into

Disentangling the Biotic and Abiotic Drivers of the Amphibian Disease Chytridiomycosis

Creator:: Bradley, Paul W.
Abstract:: The ongoing worldwide loss of biodiversity has been described as a "biodiversity crisis," "the Anthropocene defaunation," and alternatively "an extinction spasm." More recently, many scientists have come to the conclusion that we are witnesses to Earth's sixth major mass extinction event, which has the potential to fundamentally alter basic ecological...
Resource Type:: Dissertation
Full Text:: friendship. Dr. James Hermes has been a pleasure to work with as my graduate council representative. I

Salinity effects on plasma ion levels, cortisol, and osmolality in Chinook salmon following lethal sampling

Creator:: Stewart, Heather A., Noakes, David L. G., Cogliati, Karen M., Peterson, James T., Iversen, Martin H., and Schreck, Carl B.
Abstract:: Studies on hydromineral balance in fishes frequently employ measurements of electrolytes following euthanasia. We tested the effects of fresh- or salt-water euthanasia baths of tricaine mesylate (MS-222) on plasma magnesium (Mg²⁺) and sodium (Na⁺) ions, cortisol and osmolality in fish exposed to saltwater challenges, and the ion and steroid hormone...
Resource Type:: Article
Full Text:: ,c, Karen M. Cogliati a, James T. Peterson a,b, Martin H. Iversen d, Carl B. Schreck b,a a

Experiences and Correlates of Healthcare Discrimination Among Saudis in the United States

Creator:: Sinky, Tassnym Hussein
Abstract:: Healthcare discrimination is associated with various health-related attitudes, behaviors, intentions, and outcomes including provider avoidance, underutilization or increased use of healthcare services, use of alternative means of healthcare, delays in medical care, less satisfaction with care, poor health behaviors, and poorer health outcomes. Since 2001, Muslims and Arabs in the...
Resource Type:: Dissertation
Full Text:: Richman, 2009; Williams & Mohammed, 2009). Commonly defined as the differential and negative treatment

Medusahead Ecology and Management: California Annual Grasslands to the Intermountain West

Creator:: Nafus, Aleta M. and Davies, Kirk W.
Abstract:: The spread of medusahead across the western United States has severe implications for a wide range of ecosystem services. Medusahead invasion reduces biodiversity, wildlife habitat and forage production, and often leads to increased fire frequency and restoration costs. Medusahead is problematic in the Intermountain West and California Annual Grasslands. The...
Resource Type:: Article
Full Text:: medusahead density and biomass compared to the removal of any other plant functional group (Sheley and James

Developing rapid in vivo assays to investigate structure response relationships

Creator:: Truong, Lisa
Abstract:: Incorporation of nanoparticles (NPs) into consumer products is on the rise and human exposure to NPs is unavoidable. Currently, there is insufficient data to assess the safety of nanoparticles. I conducted a series of five studies using the zebrafish model to determine which NP components (i.e., core material or surface...
Resource Type:: Dissertation
Full Text:: , and Dr. Erik Richman characterized the nanoparticles.  In Chapter 4, Katerine Saili provided

Examining Discrimination, HIV/AIDS Conspiracy Beliefs, and Condom Use Among a Diverse Sample of Young Adults

Creator:: Dowhower, Daniel P.
Abstract:: Racial/ethnic discrimination and HIV/AIDS conspiracy beliefs may contribute to disparities in use and satisfaction with healthcare services and engaging in safer sex practices. Previous studies that examined racial/ethnic discrimination and HIV/AIDS conspiracy beliefs focused primarily on African Americans with few studies focusing on Latinos. This study used longitudinal data from...
Resource Type:: Dissertation
Full Text:: ., raised blood 15 pressure and increased psychological distress; Pascoe & Smart Richman, 2009

ScholarsArchive@OSU

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

Native forb response to sulfometuron methyl on medusahead-invaded rangeland in Eastern Oregon

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Tidal-band and high-frequency internal variability on the central Oregon inner shelf

Disentangling the Biotic and Abiotic Drivers of the Amphibian Disease Chytridiomycosis

Salinity effects on plasma ion levels, cortisol, and osmolality in Chinook salmon following lethal sampling

Experiences and Correlates of Healthcare Discrimination Among Saudis in the United States

Medusahead Ecology and Management: California Annual Grasslands to the Intermountain West

Developing rapid in vivo assays to investigate structure response relationships

Examining Discrimination, HIV/AIDS Conspiracy Beliefs, and Condom Use Among a Diverse Sample of Young Adults

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