Index Catalog // ScholarsArchive@OSU

Temperature stress, gene expression, and innate immunity at the onset of cnidarian-dinoflagellate symbiosis

Creator:: Schnitzler, Christine E.
Abstract:: The intracellular mutualism between cnidarians and photosynthetic dinoflagellates (genus Symbiodinium) is responsible for the physical and trophic structure of diverse coral reef ecosystems. This relationship, based on nutrient exchange, allows for high productivity in tropical waters, which are generally nutrient-poor environments. Numerous environmental stressors currently threaten the health of corals,...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Christine E. Schnitzler for the degree of Doctor of Philosophy in

Techno-economic and Life-cycle Analyses of Glucosamine and Lipid Production from Marine Diatom Cyclotella sp.

Creator:: Xiang, Xuwen
Abstract:: Currently the production of biofuel from algae is not economically competitive with petroleum fuel. However, co-production of high-value products may be able to justify the cost of large-scale algae cultivation. The basic goal of this study is to develop a techno-economic analysis (TEA) and Life-cycle assessment (LCA) for the production...
Resource Type:: Dissertation
Full Text:: Christine Kelly Currently the production of biofuel from algae is not economically competitive

Functional polymers and proteins at interfaces

Creator:: Schilke, Karl F.
Abstract:: Functional polymers and proteins at interfaces and surfaces are of fundamental importance for biomaterials, biocatalysis and microreactor applications. Candida antarctica lipase B immobilized on poly-DL-tryptophan tethers showed 30x higher specific activity in aqueous and non-aqueous media than the same enzyme adsorbed or covalently bound directly to the surface. An excess...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________________ Christine J. Kelly

The growing skeleton : influence of lifestlye and the development of normative data using DXA

Creator:: Fuchs, Robyn K.
Abstract:: To examine the potential for exercise to build bone mass during growth, objectives of this dissertation included: 1) determine the effects of 7 months of jumping followed by 7 months of detraining on hip and spine bone mass in the prepubertal children; 2) determine variables that best predict bone mineral...
Resource Type:: Dissertation
Full Text:: approved Christine Snow To examine the potential for exercise to build bone mass during growth

Weighted vest exercise improves functional ability in women over 75 years of age

Creator:: Protiva, Karen W.
Abstract:: The purpose of this study was to determine the effects of long-term weighted vest exercise on hip bone mass, functional ability and static balance in elderly women. This was a within subject exercise intervention study and included a 6-month control period. Twenty-three subjects (age 85 ± 6) were recruited and...
Resource Type:: Dissertation
Full Text:: Ability in Women Over 75 years of age. Abstract approved: Christine Snow The purpose of this study

New application of crystalline cellulose in rubber composites

Creator:: Bai, Wen
Abstract:: Rubber without reinforcement has limited applications. The strength of reinforced rubber composites can be ten times stronger than that of unreinforced rubbers. Therefore, rubber composites are widely used in various applications ranging from automobile tires to seals, valves, and gaskets because of their excellent mechanical elastic properties. Silica and carbon...
Resource Type:: Dissertation
Full Text:: ___________________________ Kaichang Li Christine J. Kelly Rubber without reinforcement has limited

Spatial and temporal dynamics of sediment and wood in headwater streams in the central Oregon Coast Range

Creator:: May, Christine L.
Abstract:: Channels that were scoured to bedrock by debris flows provided unique opportunities to calculate the rate of sediment and wood accumulation, to make inferences about processes associated with input and transport of sediment, and to gain insight into the temporal succession of channel morphology following disturbance. In an intensive investigation...
Resource Type:: Dissertation
Full Text:: Headwater Streams of the Oregon Coast Range, U.S.A. Christine L. May and Robert E. Gresswell ABSTRACT

Vitamin B-6 and pyrimidine deoxynucleoside metabolism in the rat

Creator:: Jensen, Christine May
Abstract:: Serine transhydroxymethylase (STHM), a pyridoxal 5'- phosphate requiring enzyme is indirectly involved in pyrimidine deoxynucleotide metabolism. A decrease in the activity of this enzyme could lead to altered deoxycytidine (dC) metabolism. This study was undertaken to determine if a vitamin B-6 deficiency affects dC metabolism. The effect of a vitamin...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Christine M. Jensen for the

An Exploration on How Institutional Practices and Support Systems Support or Hinder Community College Basic Skills Students Transitioning to Postsecondary Education: A Case Study

Creator:: Knighton, Christine M.
Abstract:: Many jobs in the United States have shifted to requiring education beyond high school credentials. Many potential workers are enrolled in pre-postsecondary education, or basic skills. A small percentage of students transition from basic skills to postsecondary education. Research identifies key institutional practices and supports have shown to increase transitions,...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Christine Knighton for the degree of Doctor of Philosophy in Adult and

Educational technology associations as change agents : A case study

Creator:: Stephenson, Christine (Christine Gale)
Abstract:: This research addressed the role of educational technology associations as change agents within education with particular emphasis on issues of advocacy and leadership. Using a poststructural feminist lens and the metaphor of interview and analysis as storytelling, it explored the perspectives of nineteen individuals belonging to a national level educational...
Resource Type:: Dissertation
Full Text:: Christine Stephenson for the degree of Doctor of Philosophy in Education presented on October 16, 2007

Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Creator:: Armer, Christine Andrea
Abstract:: The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is the most devastating foliage-feeding pest of potatoes in the United States. Potential biological control agents include the nematodes Heterorhabditis marelatus Liu & Berry and Steinernema riobrave Cabanillas, Poinar & Raulston, which provided nearly 100% CPB control in previous laboratory trials. In...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Christine Andrea Armer for

Effectiveness of pheromone mating disruption for the ponderosa pine tip moth, Rhyacionia zozana (Kearfott) (Lepidoptera: Tortricidae), and its influence on the associated parasite complex

Creator:: Niwa, Christine Gail
Abstract:: The importance of pheromones in insect control relies both on their ability to reduce pest populations and on their relatively benign effects on nontarget organisms. This study was conducted to test the effectiveness of a pheromone application for mating disruption of the ponderosa pine tip moth, Rhyacionia zozana (Kearfott), and...
Resource Type:: Dissertation
Full Text:: This series of studies was conceived by Christine G. Niwa and Gary E. Daterman with the primary

Citizen-agency interactions : an investigation of postfire environments

Creator:: Olsen, Christine Shaw
Abstract:: Wildfire management has grown increasingly complex in recent years, particularly in the West and in the Wildland-Urban Interface (WUI) where a steady population growth has resulted in greater risk to people and property. Recent trends suggest the process of recovering from large fires (>100,000 acres) will become increasingly important to...
Resource Type:: Dissertation
Full Text:: OF Christine Shaw Olsen for the degree of Doctor of Philosophy in Forest Resources presented

On the Structure of the Orbit Spaces of Almost Torus Manifolds with Non-negative Curvature

Creator:: Dong, Zheting
Abstract:: An almost torus manifold $M$ is a closed $(2n+1)$-dimensional orientable Riemannian manifold with an effective, isometric $n$-torus action such that the fixed point set $M^T$ is non-empty. Almost torus manifolds are analogues of torus manifolds in odd dimension and share many of the characteristics of torus manifolds. For example, both...
Resource Type:: Dissertation
Full Text:: orbit spaces of almost torus manifolds with non-negative curvature. Abstract approved: Christine M

The role of manganese peroxidase in biomass conversion technologies

Creator:: Yee, Kelsey L.
Abstract:: Currently, the technologies used to separate lignocellulosic biomass into its component parts (cellulose, hemicellulose, and lignin) and enzymatically hydrolyze the cellulose to glucose for conversion to ethanol could be improved economically and in terms of efficiency. A major impediment to utilizing the biomass is the presence of residual lignin. The...
Resource Type:: Dissertation
Full Text:: Christine J. Kelly Currently, the technologies used to separate lignocellulosic biomass into its

Classifying seven dimensional manifolds of fixed cohomology type

Creator:: Montagantirud, Pongdate
Abstract:: Finding new examples of compact simply connected spaces admitting a Riemannian metric of positive sectional curvature is a fundamental problem in differential geometry. Likewise, studying topological properties of families of manifolds is very interesting to topologists. The Eschenburg spaces combine both of those interests: they are positively curved Riemannian manifolds...
Resource Type:: Dissertation
Full Text:: : Classifying Seven Dimensional Manifolds of Fixed Cohomology Type Abstract approved: Christine M. Escher

Bone gains in adolescent athletes and non-athletes

Creator:: Rinder, Todd Anthony
Abstract:: Discordance in bone mass between young adult swimmers and soccer players may be a direct result of differences in bone loading patterns that influence bone mineralization during growth. Our aim was to evaluate whether sports participation (soccer and swimming) had an independent effect on bone mass accrual at the hip...
Resource Type:: Dissertation
Full Text:: Gains in Adolescent Athletes and Non-Athletes. Abstract approved: Christine M. Snow Discordance in

The effects of high-impact exercise on bone mass in adolescent girls

Creator:: Witzke, Kara A.
Abstract:: We evaluated anthropometric and performance measures which best predict bone mineral density (BMD) in 54 adolescent girls (14.6±0.5y; 22.7±14.0 months past menarche). BMD for the whole body, femoral neck, greater trochanter, lumbar spine (L2-L4), and mid-femoral shaft was assessed using dual-energy x-ray absorptiometry (DXA) (Hologic QDR 1000/W). Whole body lean...
Resource Type:: Dissertation
Full Text:: Bone Mineral Density in. Adolescent Girls. Abstract approved: Christine M. Snow We evaluated

The cohomology rings of seven dimensional primitive cohomogeneity one manifolds

Creator:: Ultman, Shari K.
Abstract:: A striking feature in the study of Riemannian manifolds of positive sectional curvature is the narrowness of the collection of known examples. In this thesis, we examine the structure of the cohomology rings of three families of compact simply connected seven dimensional Riemannian manifolds that may contain new examples of...
Resource Type:: Dissertation
Full Text:: Dimensional Primitive Cohomogeneity One Manifolds Abstract approved: Christine M. Escher A striking

Effects of two resistance training protocols on insulin-like growth factors, muscle strength and bone mass in older adults

Creator:: Maddalozzo, Gianni F.
Resource Type:: Dissertation
Full Text:: . Abstract approved: Christine M. Snow, Ph.D. With age, there are marked declines in bone mineral density

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