Index Catalog // ScholarsArchive@OSU

Essays on the effect of product recalls and mergers on firm performance

Creator:: Yan, Wenfeng
Abstract:: This dissertation investigates the effect of endogenous and exogenous events on firm behavior and performance. These are fundamental questions in economics. The contribution of this study is threefold. First, it provides estimates of the impact of mergers on railroad efficiency, which has important antitrust implications. Second, it provides new estimates...
Resource Type:: Dissertation
Full Text:: negative events on the market value of Johnson & Johnson, Bridgestone, and Toyota, which is important to

Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images

Creator:: Ndzeidze, Stephen Koghan
Abstract:: Invasive plant species are expanding and transforming vegetative communities across Oregon and throughout the United States. Over the past three decades remote sensing, geographic information system (GIS), and Global Positioning System (GPS) technologies have been integrated to detect and map the distribution of noxious rangeland plants. This study developed low-cost...
Resource Type:: Dissertation
Full Text:: , Globally Positioned Digital Images Abstract approved: Douglas E. Johnson Invasive plant

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

Creator:: Johnston, James D.
Abstract:: The application of modern land management practices beginning at the turn of the 20th century is widely believed to have dramatically transformed forest landscapes of the inland Pacific Northwest. Restoring historical conditions to make forests resilient to future climate and disturbance regimes is a major goal of federal forest managers....
Resource Type:: Dissertation
Full Text:: . Norm Johnson The application of modern land management practices beginning at the turn of the

The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

Creator:: Farber, Daniel
Abstract:: Wheat stripe rust (WSR), also called yellow rust of wheat (Tricitum spp.), causal agent Puccinia striiformis f.sp. tritici (Pst), is a foliar disease of major economic importance on wheat, especially grown in temperate locations. WSR causes major losses of wheat yield, estimated at nearly $ 1 billion per year, and...
Resource Type:: Dissertation
Full Text:: Johnson, Dr. Niklaus Grunwald, Dr. Patrick De Leenheer, and Dr. Daniel Luoma. Additionally, I am very

The impact of child-centered play therapy on anxiety levels in pre-neurosurgical pediatric patients

Creator:: Lerwick, Julie L.
Abstract:: The prevalence of childhood illness requiring hospitalization establishes the need for implementation of an applied intervention to decrease levels of hospitalization-induced anxiety in pediatric patients. In addition to anxiety, levels of perceived trauma have also been linked to pre-operative pediatric patients. Child-Centered Play Therapy (CCPT) within the medical setting has...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________________________ Daniel Stroud The prevalence of childhood illness requiring hospitalization establishes

Understanding Software Development and Testing Practices

Creator:: Hilton, Michael
Abstract:: A bad software development process leads to wasted effort and inferior products. In order to improve a software process, it must be first understood. In this work I focus on understanding software processes. The first process we seek to understand is Continuous Integration (CI). CI systems automate the compilation, building,...
Resource Type:: Dissertation
Full Text:: Software Development and Testing Practices Abstract approved: Daniel Dig A bad software development

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: . Johnson, L. L., G. M. Ylitalo, C. A. Sloan, B. F. Anulacion, A. N. Kagley, M. R. Arkoosh, T. A

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

Creator:: Johnson, Tracey N.
Abstract:: In grasslands, grazing by large ungulates can influence vegetation structure, composition, primary productivity, and ultimately, ecosystem functioning. While grazing represents a complex disturbance, grazing intensity largely determines the effects of grazing on vegetation. Structural and compositional changes in the plant community caused by grazing could have bottom-up effects on species...
Resource Type:: Dissertation
Full Text:: Tracey N. Johnson for the degree of Doctor of Philosophy in Wildlife Science presented on September 14

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

Creator:: D'Elia, Jesse
Abstract:: Reintroduction programs are increasingly being used to save animals from extinction and aid in their recovery. The California Condor (Gymnogyps californianus), one of the most endangered birds in the world, is a remarkable example of how reintroduction programs can help rapidly increase a species' population numbers and range following a...
Resource Type:: Dissertation
Full Text:: : ________________________________________________ Susan M. Haig Reintroduction programs are increasingly being used

Understanding Host-Pathogen Interactions in the Sphaerulina musiva-Populus Pathosystem

Creator:: Dunnell, Kelsey Liann
Abstract:: Host-parasite interactions between the pathogen, Sphaerulina musiva, and its host, Populus spp., were examined in a series of studies. In the first study, variation in resistance of Populus nigra from 7 locations in Europe was differentiated based on the parameters cankers per cm and disease severity score. The analysis evaluated...
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ Jared M. LeBoldus

ScholarsArchive@OSU

Essays on the effect of product recalls and mergers on firm performance

Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images

Forest Successional and Disturbance Dynamics in the Southern Blue Mountains of Eastern Oregon

The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

The impact of child-centered play therapy on anxiety levels in pre-neurosurgical pediatric patients

Understanding Software Development and Testing Practices

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

California condors in the Pacific Northwest : integrating history, molecular ecology, and spatial modeling for reintroduction planning

Understanding Host-Pathogen Interactions in the Sphaerulina musiva-Populus Pathosystem

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search