Index Catalog // ScholarsArchive@OSU

Improving the nutritional and textural properties of dairy products by feeding Holstein cows processed flaxseed

Creator:: Oeffner, Scott P.
Abstract:: There is growing public concern about the high proportion of saturated fatty acids in milk fat; however, feed intake, energy partitioning toward milk synthesis, and milk fat concentrations can decrease when cows are fed high concentrations of unsaturated lipids. The objective of this study was to identify the optimal rate...
Resource Type:: Masters Thesis
Full Text:: * Scott P. Oeffner for the degree of Master of Science in Animal Science presented on October 12, 2011

Structural investigations to understand the mechanisms of two proteins involved in sulfur chemistry : SsuE and cysteine dioxygenase

Creator:: Driggers, Camden McCullough
Abstract:: Sulfur is one of the six elements required during the early stages of the evolution of life, and enzymes involved in sulfur transfer and oxidation are increasingly being recognized as potential drug targets for antimicrobials as well as for therapies for cancer, neurodegenerative and inflammatory diseases. Bacteria are able to...
Resource Type:: Dissertation
Full Text:: : . P. Andrew Karplus Sulfur is one of the six elements required during the early stages of the

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:: OF THE DISSERTATION OF Sarah P. Walters for the degree of Doctor of Philosophy in

Solving algebra word problems : solution strategies Thai students used and potential connections with teachers' instructional strategies

Creator:: Swangrojn, Porntip
Abstract:: The main purpose of this study was to investigate and describe strategies that Thai ninth grade students use to solve algebra word problems. The second purpose of this study was to investigate teachers' instruction during word problem solving lessons. Three mathematics teachers and one of each of their classes participated...
Resource Type:: Dissertation
Full Text:: . Grateful acknowledgments are also given to Dr. Thomas P. Dick, Dr. Barbara E. Edwards, Dr. Margaret L

Interactions between microbial dynamics, water flow, and solute transport in unsaturated porous media

Creator:: Yarwood, Rockie R.
Abstract:: Bioremediation in the vadose zone is unpredictable because of poor understanding of factors influencing microbial growth in this environment. A lab-scale experimental system was developed to examine, noninvasively, interactions between microbial growth, water flow, and solute transport in unsaturated porous media. Measurements of microbial colonization, and its impact on hydrology,...
Resource Type:: Dissertation
Full Text:: members, Dr. Daniel Arp and Dr. Jennifer Field, and to Dr. Linda Blythe. Special thanks to Dr. Larry

Community composition and activities of denitrifying bacteria in soils

Creator:: Rich, Jeremy J.
Abstract:: Few studies have directly compared denitrifying community composition and activities in soils by coupling molecular-genetic techniques and traditional measures of denitnfication. I investigated communities of denitrifying bacteria from adjacent meadow and forest soils in the Cascade Mountains, Oregon. A key gene in the denitrification pathway, N₂O reductase (nosZ), served as...
Resource Type:: Dissertation
Full Text:: vegetation type or site, based on Indicator Species Analysis (p-value <0.05

Cometabolic degradation of polycyclic aromatic hydrocarbons (PAHs) and aromatic ethers by phenol- and ammonia-oxidizing bacteria

Creator:: Chang, Soon Woong
Abstract:: Cometabolic biodegradation processes are potentially useful for the bioremediation of hazardous waste sites. In this study the potential application of phenol-oxidizing and nitrifying bacteria as "priming biocatalysts" was examined in the degradation of polycyclic aromatic hydrocarbons (PAHs), aryl ethers, and aromatic ethers. We observed that a phenol-oxidizing Pseudomonas strain cometabolically...
Resource Type:: Dissertation
Full Text:: and aromatic ethers including naphthalene, acenaphthene, diphenyl ether, dibenzofuran, dibenzo-p

Toward understanding the nature of the soil microsite in relation to nitrogen and carbon cycling

Creator:: Cliff, John B.
Abstract:: My research has focused on understanding N and C cycling in soils at small scales. Isotope dilution methods commonly used to estimate gross rates of soil chemical transformations assume homogeneous distribution of label. I explored the effects of diffusion limitations on isotope dilution experiments in soil aggregates using spherical diffusion-reaction...
Resource Type:: Dissertation
Full Text:: support, and for allowing me enough rope to hang myself. I also thank Dr. Daniel J Arp, Dr. Roy Haggerty

Nitrogen partitioning and remobilization in field-grown apple trees

Creator:: Khemira, Habib
Abstract:: Uptake and cycling of nitrogen (N) in mature trees are not well understood. Fertilizer-N uptake, partitioning, and use-efficiency were studied in standard strain 'Topred Delicious' and spur strain 'Redspur Delicious' mature apple trees {Malus domestica Borck) on 'Malling 7A' (M.7A) rootstocks. The treatments consisted of a ground application in spring,...
Resource Type:: Dissertation
Full Text:: to thank my committee members Drs. Pat Breen, Daniel Arp, and Gary Jolliff for their patience and

An evaluation of factors influencing the management of Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae)

Creator:: Kepler, Ryan M.
Abstract:: The black vine weevil (BVW), Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae) is a persistent pest of nursery operations in the United States, feeding on over 140 species of plants. The goals of this research were to 1) assess the behavioral response of BVW to a commonly employed insecticide bifenthrin (Talstar 0.2G®)...
Resource Type:: Masters Thesis
Full Text:: .......................................................................................... 88 4.10 Mean population (±SD) of M anisopliae obtained from rhizosphere of inoculated P. abies roots

ScholarsArchive@OSU

Improving the nutritional and textural properties of dairy products by feeding Holstein cows processed flaxseed

Structural investigations to understand the mechanisms of two proteins involved in sulfur chemistry : SsuE and cysteine dioxygenase

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

Solving algebra word problems : solution strategies Thai students used and potential connections with teachers' instructional strategies

Interactions between microbial dynamics, water flow, and solute transport in unsaturated porous media

Community composition and activities of denitrifying bacteria in soils

Cometabolic degradation of polycyclic aromatic hydrocarbons (PAHs) and aromatic ethers by phenol- and ammonia-oxidizing bacteria

Toward understanding the nature of the soil microsite in relation to nitrogen and carbon cycling

Nitrogen partitioning and remobilization in field-grown apple trees

An evaluation of factors influencing the management of Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae)

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