Index Catalog // ScholarsArchive@OSU

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Creator:: Lampman, Ralph Tatsuo
Abstract:: The extensive reduction in adult Pacific lamprey (Entosphenus tridentatus) counts at many hydroelectric dams in the northwestern USA signals a substantial decline in lamprey numbers across the entire region in the past 40 to 50 years. Among the many potential causes of this decline, obstruction of migration routes has likely...
Resource Type:: Masters Thesis
Full Text:: Ralph Tatsuo Lampman for the degree of Master of Science in Fisheries Science presented on November 22

Quantities of prostaglandins in whole and extended bovine semen and their potential effect on fertility following insemination

Creator:: Jaeger, John Ralph
Abstract:: Our objectives were to determine 1) the concentration of prostaglandin F2α (PGF2α) in whole and extended bovine semen, 2) if concentrations of prostaglandins in extended bovine semen are correlated to fertility, and 3) if PGF2α administered at the time of artificial insemination would improve conception rate. Concentration of PGF2α tended...
Resource Type:: Dissertation

The Effects of the Flow Regime on Stream Channel Form and Processes

Creator:: Hempel, Laura A.
Abstract:: Numerous studies have explored how alluvial channel size and morphology are adjusted to different sediment and flow conditions, yet we still know very little about how and to what degree the flow regime controls channel form and processes. We use the term ‘channel form’ to refer to the size and...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Gordon E. Grant Numerous studies have explored how alluvial channel size and morphology

Effects of Secondary Salinization on Three Coastal Breeding Amphibians in Oregon: Taricha granulosa, Hyliola regilla, and Rana aurora

Creator:: Goddard, Amanda L.
Abstract:: Due to threats of secondary salinization caused by increased saltwater intrusion upstream associated with climate change, this thesis examines how salinity affects the development and oviposition site selection habits of three Oregon coastal breeding amphibians, the Roughskin Newt (Taricha granulosa), the Northern Red-legged Frog (Rana aurora) and the Pacific Treefrog...
Resource Type:: Masters Thesis
Full Text:: essential to the creation of this project. Dr. Ralph J. Garono graciously lent his time, expertise, and

Nonlinear finite difference schemes for the Klausmeier system

Creator:: McClellan, Natalia A.
Abstract:: In this work we consider a model for pattern-producing vegetation in semi-arid regions of the world proposed by Klausmeier. It is a coupled nonlinear diffusion-advection evolutionary PDE system describing the vegetation density and water amount. The model was studied extensively by J.Sherratt who took into consideration the field data for...
Resource Type:: Masters Thesis

Effect of Intravenous Tiletamine-zolazepam for Induction of General Anesthesia Prior to and during Maintenance with Isoflurane on Cardiorespiratory Parameters and Acid-base Status in Healthy Dogs : A Comparison with Alfaxalone, Ketamine-diazepam, and Propofol

Creator:: De Caro Carella, Chiara
Abstract:: The effects of alfaxalone (A-HPCD), propofol (P), ketamine-diazepam (KD) and tiletamine-zolazepam (TZ) administered IV in dogs on cardiovascular and respiratory systems, acid-base balance and electrolytes have been reported in the literature, but a study that compares IV TZ to the other induction protocols (IP) is needed. Six dogs enrolled in...
Resource Type:: Masters Thesis
Full Text:: Warnock, and Dr Jana Gordon for their pre- cious support throughout my time at the Teaching Hospital. I

An investigation of transition from penetration to deflection in the fracture of bi-material interfaces

Creator:: Strom, Joshua L.
Abstract:: The problem of determining whether a crack impinging on an interface will penetrate into the substrate or deflect along the interface is vital to the effective design of layered and composite material systems. Of particular interest is the transition between crack propagation by penetration through an interface and deflection along...
Resource Type:: Masters Thesis
Full Text:: Gordon [4] used a formulation in which the stress field immediately ahead of a crack was examined. By

Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

Creator:: Costa, Timothy B.
Abstract:: In this work we consider two multiscale applications with tremendous computational complexity at the lower scale. First, we examine a model for charge transport in semicon- ductor structures with heterojunction interfaces. Due to the complex physical phenomena at the interface, the model at the design scale is unable to adequately...
Resource Type:: Dissertation
Full Text:: my committee members Dr. Ralph Showalter, Dr. Robert Higdon, Dr. Mina Ossiander and Dr. Dorthe

Synthesis and characterization of nanoporous alumina films and their application to nanorod array fabrication

Creator:: Abolhassani Monfared, Negar
Abstract:: The purpose of this study is to synthesize and characterize the nanoporous structures that can be obtained by the anodization of thin film aluminum sputter deposited on a silicon wafer substrate. This study also investigated the application of nanoporous alumina to fabricate nanorod arrays by using preceramic polymers. Although there...
Resource Type:: Dissertation

Development and decommissioning of small dams : analysis of impact and context

Creator:: Kibler, Kelly Maren
Abstract:: Management of small dams may have profound implications for the health and integrity of small rivers and freshwater diversity. Global indicators suggest future growth in the small hydropower sector, particularly in developing countries. As a renewable energy source, it is often presumed that small hydropower entails fewer and less severe...
Resource Type:: Dissertation
Full Text:: you for your creativity, and thoughtful mentorship. I also thank my graduate committee, Gordon

ScholarsArchive@OSU

Passage, migration behavior, and autoecology of adult Pacific lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA

Quantities of prostaglandins in whole and extended bovine semen and their potential effect on fertility following insemination

The Effects of the Flow Regime on Stream Channel Form and Processes

Effects of Secondary Salinization on Three Coastal Breeding Amphibians in Oregon: Taricha granulosa, Hyliola regilla, and Rana aurora

Nonlinear finite difference schemes for the Klausmeier system

Effect of Intravenous Tiletamine-zolazepam for Induction of General Anesthesia Prior to and during Maintenance with Isoflurane on Cardiorespiratory Parameters and Acid-base Status in Healthy Dogs : A Comparison with Alfaxalone, Ketamine-diazepam, and Propofol

An investigation of transition from penetration to deflection in the fracture of bi-material interfaces

Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

Synthesis and characterization of nanoporous alumina films and their application to nanorod array fabrication

Development and decommissioning of small dams : analysis of impact and context

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