Index Catalog // ScholarsArchive@OSU

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
Full Text:: THE DISSERTATION OF John R. Jaeger for the degree of Doctor of Philosophy in Animal Science

A Climate of Risk: Modeled Vegetation, Carbon, Fire, and Biomass Loss Risk in Western Oregon and Washington under Climate Change

Creator:: Sheehan, Timothy J.
Abstract:: Managing wildlands to protect species and ecosystem services in response to climate change is challenging. To develop effective long-term strategies, natural resource managers need to account for the projected effects of climate change as well as the uncertainty inherent in those projections. Vegetation models are one important source of projected...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Timothy J. Sheehan for the degree of Doctor of Philosophy in

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
Full Text:: of Science on April 3, 2009. Title: John Archibald Wheeler: A Study of Mentoring in Modern Physics

Watershed response to western juniper control

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: OF THE DISSERTATION OF Timothy L. Deboodt for the degree Doctor of Philosophy in Rangeland

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

Creator:: Walburger, Kenric J.
Abstract:: The objectives of the experiment were to: 1) determine the relationship between overstory canopy cover and ungulate herbivory on understory production composition and diversity and 2) determine the effects of timber harvest, ungulate herbivory and season of use on botanical composition and nutritional quality of beef cattle diets. Three randomly...
Resource Type:: Dissertation
Full Text:: tenure as superintendent and also for Dr. Timothy DelCurto for helping maintain this project. Dr

A study of cavitation instabilities in solids

Creator:: Puttapitukporn, Tumrong
Abstract:: Cavitation instabilities in elastic-plastic solids under spherically-symmetric and axisymmetric loadings were investigated using the finite element method. Both quasi-static and dynamic analyses were used to solve these problems. In the quasi-static analyses, we investigated a cavitation instability in elastic/perfectly-plastic, linear hardening elastic-plastic, power hardening elasticplastic, and constrained silver materials. Here,...
Resource Type:: Dissertation
Full Text:: Cavitation Instabilities in Solids. Abstract anoroved: Timothy C. Kennedy Cavitation instabilities in

Getting Kids from Cradle to College: Parents’ Expectations and Support to College-Bound Children

Creator:: Ottusch, Timothy M.
Abstract:: Increasing numbers of individuals aspire to, seek out, and need a college degree in order to be competitive in the job market (Goyette, 2008; U.S. Department of Education, 2013). College degrees provide access to economic, social, and health benefits (Abel & Deitz, 2014; Autor, 2014). The United States also needs...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Timothy M. Ottusch for the degree of Doctor of Philosophy in Human

Usage of Digital Image Correlation in Single and Multiple Stereo Systems for Strain and Shape Measurement

Creator:: McKinley, Timothy A.
Abstract:: This dissertation details the application of digital image correlation (DIC) in novel methods for mechanical testing and shape characterization. The first usage manifested in the development of a novel composite test specimen that provided the ability to characterize the matrix compression energy release rate at initiation and subsequent crack propagation....
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Timothy McKinley

Using Culture-independent Genomics as a Means for Understanding Chlamydial Biology

Creator:: Putman, Timothy E.
Abstract:: The chlamydiae are a family of obligate intracellular bacteria that have a unique bi-phasic developmental cycle, unique cellular properties, and a unique set of challenges to studying its biology. While genetic manipulation is becoming routine in Chlamydia, there are significant challenges to working with this intracellular parasite. The body of...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Timothy E. Putman for the degree

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:: AN ABSTRACT OF THE THESIS OF Timothy B. Costa for the degree

ScholarsArchive@OSU

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

A Climate of Risk: Modeled Vegetation, Carbon, Fire, and Biomass Loss Risk in Western Oregon and Washington under Climate Change

John Archibald Wheeler : a study of mentoring in modern physics

Watershed response to western juniper control

The effects of timber harvest and herbivory on understory vegetation and composition of beef cattle diets on forested rangelands

A study of cavitation instabilities in solids

Getting Kids from Cradle to College: Parents’ Expectations and Support to College-Bound Children

Usage of Digital Image Correlation in Single and Multiple Stereo Systems for Strain and Shape Measurement

Using Culture-independent Genomics as a Means for Understanding Chlamydial Biology

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

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