Index Catalog // ScholarsArchive@OSU

Quantitative resistance to Puccinia striiformis f. sp. hordei in barley near-isogenic (BISON) lines

Creator:: Richardson, Kelley L.
Abstract:: Quantitative resistance (QR) to disease is usually more durable than qualitative resistance, but its genetic basis is not well understood. We used the barley/barley stripe rust pathosystem as a model for the characterization of the QR phenotype and associated genomic regions. As an intermediate step in the preparation of near-isogenic...
Resource Type:: Dissertation
Full Text:: BARLEY STRIPE RUST Kelley L. Richardson, M. Isabel Vales, Jennifer G. Kling, Chris C. Mundt

Making the connection to K-12 education for noncollege-bound students : the voices of students and workers address school experiences and workforce preparation

Creator:: Campbell, Willa M.
Abstract:: This study examined the relationships between business, education, and the economy, and specifically addressed the significant impact that business has had on education and educational policy. A large amount of research exists on the history of school reform and the development of educational policy, but none of the research examined...
Resource Type:: Dissertation
Full Text:: Willa M. Campbell for the degree of Doctor of Philosophy in Education presented on March 17, 2008

Survival and persistence of Bacteroidales human and ruminant specific fecal markers and occurrence with fecal pathogens

Creator:: Walters, Sarah P.
Abstract:: Aquatic fecal contamination from non-point sources impairs environmental health and serves as a vehicle for transmission of waterborne disease, resulting in economic losses worldwide. Accurate methods of diagnosing fecal pollution and its source are needed to prevent human exposure, remediate pollution, and reduce economic impacts. In order to obtain this...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Katharine G. Field

Model-based approximation methods for reinforcement learning

Creator:: Wang, Xin
Abstract:: The thesis focuses on model-based approximation methods for reinforcement learning with large scale applications such as combinatorial optimization problems. First, the thesis proposes two new model-based methods to stablize the value–function approximation for reinforcement learning. The first one is the BFBP algorithm, a batch-like reinforcement learning process which iterates between...
Resource Type:: Dissertation
Full Text:: Methods for Reinforcement Learning. Abstract approved: Thomas G Dietterich The thesis focuses on model

Validation of an instrument for mathematics enhancement teaching efficacy of Pacific Northwest agricultural educators

Creator:: Jansen, Daniel J.
Abstract:: Teacher efficacy continues to be an important area of study in educational research. This study tested an instrument designed to assess the perceived efficacy of agricultural education teachers when engaged in lessons involving mathematics instruction. The study population of Oregon and Washington agricultural educators utilized in the validation of the...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________________________ Larry G. Enochs

Sintering of nanocrystalline silicon carbide in plasma pressure compaction system

Creator:: Bothara, Manish G.
Abstract:: Nanostructured ceramics offer significant improvements in properties over the corresponding materials with grain sizes on the order of tens to hundreds of microns. Silicon carbide (SiC) is an important structural ceramic whose properties can potentially be enhanced due to nanoscale microstructures. It has been suggested that SiC samples with grain...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Manish G

Design, characterization, and application of spectrometers for determination of low-level dissolved oxygen with small-volume sampling methodology

Creator:: Cakin, Defne
Abstract:: New analytical methods and instrumentation were developed for the determination of dissolved oxygen (DO) at low concentrations in water. The methods were based on monitoring the absorbance increase due to the oxidation of reduced indigo carmine (IC) by oxygen in the sample in different types of spectrometer cells. Spectrophotometer cells...
Resource Type:: Dissertation
Full Text:: of light passing through a 1-m LCW cell with water as the liquid core and a 1-cm

Use of nondestructive spectroscopy to assess chlorophyll and nitrogen in fresh leaves

Creator:: Ding, Pinghai
Abstract:: Four aspects of factors influencing the accuracy of nondestructive chlorophyll (Chl) and nitrogen (N) measurement in fresh leaves were studied: (1) optimum wavelength (OW) identification; (2) indices development and evaluation; (3) influence of leaf properties; and (4) influence of meter parameters and sampling technique. Results were used to develop indices...
Resource Type:: Dissertation
Full Text:: committee, Drs. Carolyn Scagel, Robert Linderman, Carmo M. Vasconcelos, John A. Young, and Thomson K

A distributed local computer network : FISHNET (Facilities Integrated in a Shared Habitat NETwork)

Creator:: Kang, Yong Joong
Abstract:: FISHNET (Facilities Integrated in a Shared Habitat) is a communication subnet architecture utilizing a hybrid application of point-topoint and broadcast communications to achieve a high degree of network performance. This objective is achieved through utilizing a dual bus structure: a data bus and a control bus. The data bus consists...
Resource Type:: Dissertation
Full Text:: thank my thesis committee, Dr. R. S. Engelbrecht, Dr. T. G. Lewis, Dr. V. M. Powers, and Dr. J

An investigation into the genetic basis of migration timing in Chinook salmon (Oncorhynchus tshawytscha)

Creator:: O'Malley, Kathleen G.
Abstract:: The genetic basis of adaptation is complex as many fitness-related traits are quantitative and likely influenced by multiple genes with variable effects across different selective environments. One important adaptation for anadromous Chinook salmon (Oncorhynchus tshawytscha) is the time at which individuals return to natal breeding sites within a reproductive season....
Resource Type:: Dissertation
Full Text:: Mamie M. Markham Research Grant, Walter G. Jones Award, Richard H. Carlson Scholarship, Lylian

ScholarsArchive@OSU

Quantitative resistance to Puccinia striiformis f. sp. hordei in barley near-isogenic (BISON) lines

Making the connection to K-12 education for noncollege-bound students : the voices of students and workers address school experiences and workforce preparation

Survival and persistence of Bacteroidales human and ruminant specific fecal markers and occurrence with fecal pathogens

Model-based approximation methods for reinforcement learning

Validation of an instrument for mathematics enhancement teaching efficacy of Pacific Northwest agricultural educators

Sintering of nanocrystalline silicon carbide in plasma pressure compaction system

Design, characterization, and application of spectrometers for determination of low-level dissolved oxygen with small-volume sampling methodology

Use of nondestructive spectroscopy to assess chlorophyll and nitrogen in fresh leaves

A distributed local computer network : FISHNET (Facilities Integrated in a Shared Habitat NETwork)

An investigation into the genetic basis of migration timing in Chinook salmon (Oncorhynchus tshawytscha)

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