Index Catalog // ScholarsArchive@OSU

The photodebromination of polybromobenzenes

Creator:: Couch, Tara Lin
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Tara Lin Couch for the degree of

Long wavelength gravity anomalies and implications concerning a descending lithospheric slab in the Pacific Northwest

Creator:: MacFarlane, William Thomas
Abstract:: The thermal regime of a postulated descending lithospheric slab is calculated. The gravity anomaly associated with such a structure is large in amplitude and long in wavelengh. Observed free-air gravity anomalies in the Pacific Northwest do not indicate a gravitational effect due to a descending slab. Two hypothetical compensation models...
Resource Type:: Dissertation
Full Text:: LITHOSPHERIC SLAB IN THE PACIFIC NORTHWEST Abstract approved R.W. Couch The thermal regime of a postulated

A literature review and qualitative exploration of adolescent school counseling groups

Creator:: Gray, Tara M.
Abstract:: The purpose of this dissertation was to increase understanding of adolescent school counseling groups including a literature review of the quantitative outcome research on group work with adolescents in the schools and a qualitative exploration of the adolescent experience of cohesion in rural school counseling groups. Outcome research on group...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Tara M. Gray for the degree of Doctor of Philosophy in Counseling

Characterizing Uncertainty and Assessing the Impact of Rapid Climate Change on the Distribution of Important Tree Species in the Pacific Northwest

Creator:: Kralicek, Karin M.
Abstract:: Climate change will impact the location of suitable habitat for tree species in the Pacific Northwest. Locations that become unsuitable will experience increased levels of tree mortality and diminished levels of tree growth. Understanding how these impacts will spatially manifest is vital for efficient management of natural resources. An invaluable...
Resource Type:: Dissertation
Full Text:: . I would like to thank my advisor, Dr. Temesgen Hailemariam, and research committee Drs. Tara

Using the Microbial Tree of Life to Describe Mammalian Health and Disease

Creator:: Arnold, Holly Kristin
Abstract:: The past decade of research has potentiated a revolution in our understanding of mammalian health and evolution by revealing that the gut microbiome plays a central role in mammalian physiology. Our ability to unlock this potential hinges upon the identification of specific groups of gut microbes that elicit effects on...
Resource Type:: Dissertation
Full Text:: mates with a special thanks to Drs. Chris Gaulke, Claire Couch, and Nicole Kirchoff for late night lab

Microbial Network Recovery by Compositional Graphical Lasso Under Additive Log-Ratio Transformation

Creator:: Tian, Chuan
Abstract:: The interactions between microbial taxa have been under great research interest in the sci- ence community given the microbiome data deluge. Several methods have been proposed to model and estimate the conditional dependency between microbial taxa for their interac- tions, in order to eliminate spurious correlation detections. However, these methods...
Resource Type:: Dissertation
Full Text:: interactions versus number of edges of the estimated network from the TARA dataset. (b): The degree distribu

Emergent Properties of Animal Social Networks: Five Stories in Five Systems

Creator:: Devan-Song, E. Anne
Abstract:: Animals aggregate and interact in nonuniform and nonrandom patterns, which lead to group level characteristics that have important evolutionary and ecological consequences. Network analysis provides a useful conceptual framework for linking animal interactions at all scales from dyads to communities, to populations and ecosystems. Despite exciting theoretical and applied advances...
Resource Type:: Dissertation
Full Text:: all your guidance, encouragement and support both in and out of work, and Claire Couch for your

Ontogenetic Shifts in Disease Response in Native and Invasive Anuran Species

Creator:: Urbina Gonzalez, Jenny Cecilia
Abstract:: This dissertation presents a different approach to understanding how amphibians are responding to disease through ontogeny. Although numerous efforts have been conducted to understand host responses to the fungus Batrachochytrium dendrobatidis (Bd), studies have been restricted to distinct developmental stages. This dissertation provides information on host response to Bd across...
Resource Type:: Dissertation
Full Text:: , Paul Bradley, Tara Chestnut, and Gisselle Xie, thanks for your critiques, assistance and mentorship

A possible conditioning effect of methionine and vitamin B₁₂ in growth stimulation by antibiotics

Creator:: Hale, Otho M.
Resource Type:: Dissertation
Full Text:: rapidly within e few weeks. .1though hatchability wss lin- proved by administering vitamin B12, lt

Quantifying Carbon Production in Marine Ecosystems Using Expressions of Phytoplankton Physiology

Creator:: Penta, William Bryce
Abstract:: Phytoplankton initiate the marine carbon cycle by fixing carbon dioxide into biologically available compounds. These abundant single celled organisms mediate carbon flux from the atmosphere to the deep ocean and are the base of the marine food web, supplying new carbon to higher trophic levels. Phytoplankton are highly diverse and...
Resource Type:: Dissertation
Full Text:: separated by ocean basin for TARA Oceans.............................................................132

Development of chemostats and use of redox indicators for studying redox transformations in biogeochemical matrices

Creator:: Lemmon, Teresa L.
Resource Type:: Dissertation
Full Text:: starting block, and Mike Schuyler and Armando Heber lin for their programming assistance. I would also

Marker development, genome mapping, and cloning of candidate disease resistance genes in sunflower, Helianthus annuus L

Creator:: Gedil, Melaku Ayele
Abstract:: The level of polymorphisms of many biochemical and DNA markers are low in cultivated sunflower (Helianthus annuus L.). The number of mapped public DNA markers is limited. Molecular markers have not been developed for the most important diseases of sunflower, such as downy mildew. The objectives of this study were...
Resource Type:: Dissertation
Full Text:: large insert (Mc Couch et al. 1997; London et al. 1998; Chen et al. 1997; Struss and Plieske 1998

Reproductive performance in the rat in relation to selection for time of puberty

Creator:: Warren, Edward Perrin
Resource Type:: Dissertation
Full Text:: ot attaini.ng and perpetuating •xiwu. repro ductiTe efficiency in tara &n1IIJI]a ia o• of u.t.oat

Semantic embodied navigation : developing agents that navigate from language and vision

Creator:: Krantz, Jacob
Abstract:: Autonomous robotic agents are on their way to becoming in-home personal assistants, construction assistants, and warehouse workers. The degree of autonomy of such systems is reflected by the manner in which we specify goals to them; the abstraction of low-level commands to high-level goals goes hand-in-hand with increased autonomy. In...
Resource Type:: Dissertation
Full Text:: Bed Toilet Couch Plant TV Figure 1.2: Image-Guided Navigation. Top: An agent is placed in a

Impacts of microbial chemical interactions on marine plankton physiology

Creator:: Moore, Eric R.
Abstract:: The bioavailability of chemical compounds in the marine environment fundamentally influences the growth and physiology of microorganisms. Organic and inorganic chemicals that are produced by some marine plankton can be consumed by other plankton for energy production, growth, or to initiate essential physiological processes. Cultures of the diatom Thalassiosira pseudonana,...
Resource Type:: Dissertation
Full Text:: tree of sequences in the TARA Oceans metagenome 107 sequences that were identified to be homologs of

Solvent desorption dynamic headspace analysis of dairy product aroma compounds

Creator:: Rankin, Scott A.
Abstract:: A method for the assessment of volatile compounds in dairy products was developed using solvent desorption dynamic headspace sampling. The method was first applied to assay for diacetyl and acetoin in buttermilk. Major buttermilk volatiles recovered included diacetyl, acetic acid, and acetoin. Normalized detector responses were linear over the range...
Resource Type:: Dissertation
Full Text:: thickening (Whistler and BeMiller, 1993), protein stabilization (Lin, 1977), inhibition of cream separation

A chick growth inhibitor in alfalfa

Creator:: Kodras, Rudolph
Resource Type:: Dissertation
Full Text:: .. lin and woolgrease plus 2 per cent cottonseed oil. 'Water treatment, ix- radiation, autoolaving

Late Neogene tectonics of the mouth of the Gulf of California

Creator:: Ness, Gordon Everett
Abstract:: Anomaly timescales for the last 90 million years, derived from marine magnetic profiles and published prior to mid-1979, are summarized, illustrated for comparison, and critically reviewed. A revised timescale is constructed using calibration points which fix the ages of anomalies 2.3', 5.5, 24, and 29. An equation is presented for...
Resource Type:: Dissertation
Full Text:: Li U 11 B E] J) BIll _. jir U ilL J L IL J Lin H I I I 8-14 'WIJII 1111. LJLHILH Li FIJ1ILI[LIF 6-74

Performance of broilers and layers fed crab meal and other substances for improving utilization of diets containing whey or cellulose

Creator:: Tachasirinugune, Sommai
Abstract:: Several experiments involving broilers and laying hens were conducted to study the effects of feeding crab meal, dried whey and cellulose. The positive responses of crab meal as a substance for improving the utilization of dried whey and cellulose were examined. Cellulose treated with concentrated H3PO4 in broiler diets and...
Resource Type:: Dissertation
Full Text:: (Hansen et al., 1971), or precipitating with ethanol (Morr and Lin, 1970). The products usually contain

Impact of Igneous Mineralogy on the Composition and Metabolic Function of Microbial Biofilms in a Thermal Suboceanic Crustal Aquifer

Creator:: Smith, Amy R.
Abstract:: Igneous oceanic crust encompasses ~60% of Earth’s surface and is composed of basalt glass and mafic, ultramafic, and felsic minerals. A vast marine aquifer lies within the crust, exchanging geochemically altered fluids with seawater from the overlying ocean at ridge crests, flanks, seamounts, and outcrops where permeable crust is exposed....
Resource Type:: Dissertation
Full Text:: reduced iron, ammonium, methane, and molecular hydrogen higher than that of bottom seawater (Lin et al

What is killing the corals? Viral and bacterial interrogations using metagenomics and microscopy

Creator:: Soffer, Nitzan
Abstract:: Corals have multiple roles in maintaining ocean health and are some of the world’s most diverse ecosystems. The coral animal is host to a multitude of taxa, including symbiotic dinoflagellate algae, fungi, bacteria, protists, and viruses. Environmental stressors and disease agents can perturb the delicate balance of the coral host...
Resource Type:: Dissertation
Full Text:: USVI. My Hawaii collaborator, Courtney Couch, for my work she did vouch, thanks for the comments on

Potential Additive-Manufacturing of Ablative Thermal Protection Systems

Creator:: Hazell, Kenya K.
Abstract:: Electrodeposition is a versatile polymer deposition technique to create nano-microscale materials using an electrical field generated from a charged droplet of solution and a grounded collector. Electrospinning or electrospraying can occur during electrodeposition, leading to the creation of nanofibers or bead-like materials depending on the process parameters. Photopolymerization of the...
Resource Type:: Dissertation
Full Text:: Kalbugh, Tara Hurley, Bokun Zhou, and Mia Malgrini, I have received guidance, support, and a sense of

Life history and environmental influences on avian incubation and parental care in songbirds

Creator:: Austin-Bythell, Suzanne H.
Abstract:: Patterns of nest attendance behavior by breeding birds represent a parent-offspring trade-off in which adults balance self-maintenance with parental care decisions. Incubation, in particular, is of interest because adults must provide an environment suitable for embryonic development through nest-building and contact-incubation. We evaluated how adult incubation constancy and nest visitation...
Resource Type:: Dissertation
Full Text:: I am grateful. Love and thanks to Dr. Tara Robinson for her continued support and making me feel

Effects of pesticides on amphibians with special reference to the pyrethroidinsecticide, cypermethrin

Creator:: Biga, Lindsay M.
Abstract:: Pollution by pesticides is a ubiquitous concern for wildlife. The effects of pesticides are especially concerning in aquatic environments, which are particularly vulnerable as they have several exposure routes for the influx of chemicals. These effects are of particular concern as biodiversity loss reaches unprecedented rates. This includes recent declines...
Resource Type:: Dissertation
Full Text:: Sally Hacker kindly provided access to their laboratories for my research. Tara Bevandich, Torri

Structure and Dynamics of the Canine (Canis familiaris) Nasal Microbiome

Creator:: Knorr, Elizabeth
Abstract:: The diverse community of bacteria living within and on host organisms, known as the microbiome, has an important role in maintaining host health. Dysbiosis, known as a change in the healthy community of the microbiome, has been associated with a number of diseases across host organisms and body sites including...
Resource Type:: Dissertation
Full Text:: (Schwab et al., 2011) and African buffalo (Couch et al., 2021). Changes in diet have been shown to

Women in Forest Sector Leadership: A Qualitative, Multi-country Study

Creator:: Larasatie, Pipiet
Abstract:: Generally presented as a preferred social norm based on both ethical considerations and legislative demands, gender equality has been highly encouraged in recent years. For instance, The United Nations Sustainable Development Goals for 2030 call out achieving gender equality and empowerment of women. However, although there are multiple efforts to...
Resource Type:: Dissertation
Full Text:: . Bal, Tara L, and Terry L Sharik. 2019. “Web Content Analysis of University Forestry and Related

Multiple Stressors Drive Changes in Coral Microbiome Diversity and Composition Demonstrating the Role of a Bacterial Symbiont in Microbial Community Sensitivity and Resilience

Creator:: Maher, Rebecca L.
Abstract:: On coral reefs, disturbances rarely occur in isolation. Global stressors such as increasing seawater temperature often coincide with local stressors like nutrient pollution. In the face of increasing anthropogenic stress, corals can function as environmental sentinels, although little is known about how multiple stressors interact to disrupt their associated bacterial...
Resource Type:: Dissertation
Full Text:: ............................................................................................. 214 4.1. Three sampling sites included in the Tara expedition around the island of Mo’orea in

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Creator:: Clark, Patrick Eugene
Abstract:: The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge (Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to changes in winter range forage quality...
Resource Type:: Dissertation
Full Text:: conducted in 1912 and 1913 (Bailey 1936, Couch 1953, Bryant and Maser 1982). Bailey (1936) reported there

Physical Activity Promotion for Emerging Adults with Intellectual and Developmental Disabilities Transitioning from High School into the Community: A Virtual Intervention Grounded in Self-Determination Theory

Creator:: Raja Vora, Joseline
Abstract:: People with intellectual and developmental disabilities (IDD) engage in lesser physical activity (PA) and more time in sedentary activities as compared to those without disabilities. A subset of people with IDD who are most vulnerable to develop habits detrimental to health is the emerging adults who are transitioning from adolescence...
Resource Type:: Dissertation
Full Text:: with greater PA (Lin et al., 2010). Caregiver’s favorable attitude towards PA was also positively

An Integrated Approach to Gauge the Effects of Global Climate Change on Headwater Stream Ecosystems

Creator:: Bury, Gwendolynn W.
Abstract:: Climate change is predicted to affect ecosystems, including systems already stressed by human impacts. One ecosystem that is already highly impacted by human land use is the cold headwater stream system of the Pacific Northwest. One method of assessing the function of an ecosystem is by using an indicator species....
Resource Type:: Dissertation
Full Text:: outlandish, or the deadline far too close. Tara Bevandich, Torri Givigliano, Trudy Powell, Traci Durrell

Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

Creator:: Kanda, Kojun
Abstract:: In this dissertation, I present the results from three studies: (1) a phylogeny of Tenebrionoidea (Coleoptera) inferred from a seven-gene dataset derived from PCR and Sanger sequencing; (2) a phylogeny of Tenebrionidae, the largest family in Tenebrionoidea, inferred from a four-gene dataset also derived from PCR and Sanger sequencing; (3)...
Resource Type:: Dissertation
Full Text:: graduate school without their patient guidance: Tara Bevandich, Traci

Urinary 17-ketosteroids, rate of gain, feed efficiency, and certain blood constituents of beef cattle

Creator:: Nelms, George Estes, 1927-2011
Resource Type:: Dissertation

The origin of mid-ocean ridge basalts : insights from trace element contents in anorthite, anorthite-hosted melt inclusions, and ocean core complexes

Creator:: Weinsteiger, Allison B.
Abstract:: The primary goal of this study is to access the processes that alter primary melts after segregation from a mantle source and ultimately form petrologic Layers 2 and 3 of the Ocean Crust. Mineral, melt inclusion, and whole rock chemical compositions are utilized to further the understanding of 1) the...
Resource Type:: Dissertation
Full Text:: Langmuir, 198; Lin and Morgan, 1992; Wang et al., 1996; Toomey et al., 1998; Carbotte et al., 2004). A

Evidence for molecular diversity of Piscirickettsia salmonis

Creator:: Mauel, Michael J.
Resource Type:: Dissertation
Full Text:: . 1984, Couch 1985, Comps 1985; crustacean: Federici et al 1974, Pappalardo and Bonami 1980, Larsson

Cellular Recognition, Division, and Proliferation in the Cnidarian-Dinoflagellate Symbiosis

Creator:: Tivey, Trevor R.
Abstract:: Cnidarians and their symbiotic dinoflagellates form a productive mutualism that shapes marine environments. In this symbiosis, dinoflagellate species from the family Symbiodiniacea reside within cnidarian host gastrodermal cells and provide the host with photosynthetically fixed carbon in exchange for host metabolites. This nutritional exchange allows both partners to thrive in...
Resource Type:: Dissertation
Full Text:: supportive over the past six years. I especially thank the office staff past and present (Tara, Traci

From Perception to Planning : Adaptation in Flood-risk Communities

Creator:: Gomez, Luis A.
Abstract:: This research asserts that flood risk perception of individuals living in floodplains influences their preparedness for taking actions to protect themselves from flood hazards. The results of this research are backed up by quantitative analysis of survey responses of individuals living in floodplains of Corvallis, OR in the USA. The...
Resource Type:: Dissertation

The Role of Bone Marrow Adipose Tissue in Bone Loss During Spaceflight and Simulated Spaceflight in Rodents

Creator:: Keune, Jessica Ann
Abstract:: The reduction in mechanical load imparted on the body during spaceflight presents unique physiological challenges. One detrimental and seemingly unavoidable response to microgravity is rapid bone loss. This adaptation is hazardous not only to astronaut health, but to the success of long-duration exploration-class missions. Skeletal adaptation to spaceflight in astronauts...
Resource Type:: Dissertation
Full Text:: Tara Neill, I likely would have never pursued research or graduate school. My time in Oregon has

Activity recognition in desktop environments

Creator:: Shen, Jianqiang
Abstract:: Knowledge workers are struggling in the information flood. There is a growing interest in intelligent desktop environments that help knowledge workers organize their daily life. Intelligent desktop environments allow the desktop user to define a set of “activities” that characterize the user’s desktop work. These environments then attempt to identify...
Resource Type:: Dissertation

Perceptions about mother-daughter relationships during daughters' childbearing

Creator:: Martell, Louise Kelly
Abstract:: The purpose of this study was to investigate changes in contact, emotional closeness, and aid exchange in the mother-daughter, relationship during daughter's first pregnancy. According to the literature reviewed, women increase contact with and become emotionally closer to their mothers with pregnancy. It appears that pregnant women have increased feelings...
Resource Type:: Dissertation

Amphibian Population Declines and Extinctions: Disease in Amphibian Communities with Cascading Effects in Freshwater Communities

Creator:: Harjoe, Carmen C.
Abstract:: Earth is experiencing unprecedented biodiversity loss. Amphibians are at the forefront of this biodiversity loss, with species declines estimated to be more severe than those of birds and mammals. Amphibian population declines and extinctions are driven by a number of factors including climate change, habitat destruction, contaminants and disease but...
Resource Type:: Dissertation
Full Text:: Integrative Biology office staff including: Tara Bevandich, Traci Durrell-Khalife, Trudy Powell, and Tresa

Ideal Thumbnail-Preserving Encryption for Balancing Image Privacy and Usability

Creator:: Tajik, Kimia
Abstract:: In this dissertation, we propose Ideal Thumbnail-Preserving Encryption (Ideal TPE), as a special case of format-preserving encryption, to balance image privacy and usability concerns in a cloud environment. We first introduce a concrete construction for Ideal TPE, that provably leaks nothing about the plaintext (unencrypted) image beyond its thumbnail. We...
Resource Type:: Dissertation

Effect of a direct-fed microbial on performance of single comb white leghorn chickens

Creator:: Nahashon, Samuel N.
Abstract:: Six experiments were carried out with Single Comb White Leghorn laying chickens to assess the effect of feeding a source of direct-fed microbials (Lactobacillus; Lacto) and its carrier [condensed cane molasses solubles (CCMS)] on the retentions of fat, nitrogen and several minerals; on the status of the pH of the...
Resource Type:: Dissertation
Full Text:: include a strong tendency towards species-specificity (Fuller et al., 1978; Lin and Savage, 1984). A.6

New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

Creator:: Lowder, Sarah R.
Abstract:: The scale of pest and disease dispersal is often larger than the scale of individual farms. Therefore, an individual grower’s response to pests and diseases can affect and is affected by their surrounding growing region. Individual growers are also not isolated, and engage in various forms of information gathering, sharing,...
Resource Type:: Dissertation
Full Text:: . Tara Neill in particular is indispensable; especially when the squirrels are running loose. Alex Wong

Bioenergetics-based predator-prey relationships between piscivorous birds and juvenile salmonids in the Columbia River estuary

Creator:: Lyons, Donald E.
Abstract:: This dissertation focuses on the predator-prey relationship between two species of avian predators, Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus), and one of their important prey types, juvenile salmonids (Oncorhynchus spp.), in the Columbia River estuary of Oregon and Washington states during the period 1998 – 2007. I...
Resource Type:: Dissertation
Full Text:: list. Major collaborators include Jessica Adkins, Karen Courtot, Chris Couch, Anne Mary Myers

Cytotoxic responses of Biomphalaria glabrata hemocytes towards the parasite Schistosoma mansoni : the role of reactive oxygen and nitrogen species

Creator:: Hahn, Ulrike K.
Resource Type:: Dissertation
Full Text:: snails' hemolymph (Monroy, Hertel and Loker, 1992; Monroy and Loker, 1993; Loker, Couch and Hertel, 1994

Habitat Use and Ecological Interactions of Invasive Lionfish in the Bahamas

Creator:: Davis, Alexandra C. D.
Abstract:: Invasive species are a growing global economic and ecological problem. Invasive Indo-Pacific lionfish (Pterois spp.) are known to have extreme negative effects on coral-reef communities in the Bahamas, so understating their distribution within and among reefs, what limits their local movements, and the effects they have on native prey species...
Resource Type:: Dissertation
Full Text:: (formerly Zoology) department who helped me along the way. To the office staff: Tara Bevandich, Traci

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:: Kral, George L.
Abstract:: The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Resource Type:: Dissertation

"Instead of tumbleweed, we have mitigation systems" : an ethnography of toxics risk, mitigation, and advocacy in IBM's deindustrialized birthplace

Creator:: Little, Peter C.
Abstract:: This dissertation draws on ethnographic data and political ecological theory to analyze the experience of residents living in the IBM-Endicott Superfund site in Endicott, New York. Combining in-depth narratives and quantitative measures from a household survey, it highlights residents' perceptions of 1) environmental health risk, 2) risk mitigation, 3) deindustrialization...
Resource Type:: Dissertation

Suppression of Microdochium Patch on Annual Bluegrass Putting Greens using Iron Sulfate, Phosphorous Acid, Sulfur, and Mineral Oil

Creator:: Mattox, Clint M.
Abstract:: Managing Microdochium patch on intensively manicured annual bluegrass putting greens is a challenge for turfgrass professionals in cool-humid climates similar to the Pacific Northwest. Fungicides are the predominant means to mitigate damage caused by this fungal pathogen, however pesticide restrictions are making it even more challenging to suppress Microdochium patch....
Resource Type:: Dissertation

Morphology and anatomy of Phormium tenax Forster

Creator:: Assavesna, Sukhum
Resource Type:: Dissertation
Full Text:: ). The plant was first successfully established in cultivation at Kew Garden, London, and lin many

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