Index Catalog // ScholarsArchive@OSU

Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition

Creator:: Sampaio, Tiago Luís Barros
Abstract:: A rootstock trial was established in 1997 at the OSU Woodhall vineyard, located in the Southern Willamette Valley, which included two experiments. The first experiment was a factorial of four varieties grafted on to 9 rootstocks, and also as ungrafted vines (a split-plot design). The second experiment was a randomized...
Resource Type:: Dissertation
Full Text:: sincere gratitude also to the other members of my committee: Dr. Markus Keller, Dr. Gary Banowetz, and

Foraging behavior of the Pacific harbor seal (Phoca vitulina richardii) in the Pacific Northwest and potential impacts of coastal hypoxia on foraging efficiency

Creator:: Steingass, Sheanna M.
Abstract:: In the last decade, the California Current Large Marine Ecosystem has experienced a trend of increased severity of upwelling-driven coastal hypoxia. This thesis strove to examine the potential upper trophic level impacts of moderate and severe hypoxia in the CCLME. Initially I conducted a literature review of Pacific harbor seal...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Markus Horning In the last decade, the California Current Large Marine Ecosystem (CCLME

Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Creator:: Wanzek, Thomas
Abstract:: Soils have a critical role in global carbon (C) cycling, containing one of the largest fast-cycling carbon stocks on earth. Robust representation of soil organic matter dynamics in Earth System Models is critical for future climate prediction. Current C cycling models assume that all C cycling in non-hydric (i.e. ‘upland’)...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Markus Kleber Soils have a critical role in global carbon (C) cycling, containing one of

Assessing the role of reactive metal species in soil organic matter cycling using chemical imaging

Creator:: Keiluweit, Marco
Abstract:: Intimate associations with reactive metal species permanently protect soil organic matter (SOM) from microbial access and oxidation, contributing to the build-up of organic carbon (C) stocks in soils. It is increasingly recognized, however, that such associations can be reversible and that reactive metal species might even facilitate the oxidation of...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Markus Kleber Intimate associations with reactive metal species permanently protect

Determination of unsaturation-, growth phase-, and growth rate-dependent hydrogen isotopic fractionation in C₃₇ alkenones produced by Emiliania huxleyi

Creator:: Wolhowe, Matthew D.
Abstract:: Recent works have investigated use of the hydrogen isotopic composition of C₃₇ alkenones (δD[subscript K37s]), lipid biomarkers of certain haptophyte microalgae, as an independent paleosalinity proxy. I discuss herein the factors impeding such an application and identify the potential alternative use of δD[subscript K37s] measurements as a proxy for non-thermal,...
Resource Type:: Masters Thesis
Full Text:: project, and I thank Markus Kleber for agreeing to serve as my graduate council representative. Ian

Diversity and Activity of Microbial Extracellular Peptidases in Soil

Creator:: Nguyen, Trang T. H.
Abstract:: Soil nitrogen exists largely as organic matter, including plant liter, dead animal matter, and microbial necromass. About 90% of soil organic nitrogen is proteinaceous material that is too large for plants and microorganisms to assimilate directly. Protein depolymerization therefore plays a critical role in mobilizing this organic source of nitrogen,...
Resource Type:: Dissertation
Full Text:: for your patience and dedication. Dr. Markus Kleber guided me to think critically like a scientist

Use of decision tree analysis for predictive soils mapping and implementation on the Malheur County, Oregon initial soil survey

Creator:: Hash, Sarah Jane
Abstract:: Soil surveys provide essential information for making land use and management decisions on publicly-owned lands in the semi-arid Great Basin. Soil maps produced with conventional mapping techniques are time-consuming, costly, and do not explicitly document the soil scientist's mental soil-landscape model. Predictive soils mapping using decision tree analysis (DTA) can...
Resource Type:: Masters Thesis
Full Text:: NRCS soil scientists Alina Rice, Mark Keller and Shanna Bernal-Fields and BLM range scientist

“We’ll Be That Kid That You Think We Are” : The Influences of Stigma and Interactions with Important Adults on Youth Identity Development in a Rural Context

Creator:: Lile, Joy R.
Abstract:: Adolescence is a developmental stage marked by crystallization in individuals’ sense of identity (Erikson, 1994; Harter, 1999). Research on positive youth development stresses the ways in which thriving trajectories during adolescence contribute to positive lifelong outcomes (Lerner & Overton, 2008; Scales, Benson, & Roehlkepartain, 2011) A symbolic interactionism perspective (Mead,...
Resource Type:: Dissertation
Full Text:: ; Rhodes, Spencer, Keller, Liang, & Noam, 2006). However, low-income youth, especially those in

Goal pursuits and mental health in later life

Creator:: Bolkan, Cory R.
Abstract:: Grounded in life span theory, this study explored how personal goals (as measured by possible selves) related to depressive symptoms in older adults. Possible selves represent individuals' ideas of what they would like to become (hoped-for selves) and what they are afraid of becoming (feared selves). Possible selves are also...
Resource Type:: Dissertation
Full Text:: of full or partial recovery, or relapse and remission (Keller, 1994). Data regarding the course and

The Role of Plant-soil Feedback in the Invasion of Brachypodium sylvaticum in Douglas-fir Forests

Creator:: Esterson, Andrew
Abstract:: Invasive plants have the capacity to transform landscapes and alter ecosystem function, causing significant economic and ecological damage. These effects include displacement and reduction of native flora and fauna, altered fire regimes, modification of biotic and abiotic soil properties, as well as local, regional, and global economic impacts. With such...
Resource Type:: Masters Thesis
Full Text:: , Mark, Ewald Weber, and Markus Fischer. 2010. “A Meta-Analysis of Trait Differences between Invasive

The impact of Oregon’s Coordinated Care Organizations on Prenatal Care Access and Quality : A Difference-in-Differences Analysis

Creator:: Muoto, Ifeoma O.
Abstract:: Background: Prenatal care (PNC) is an important preventive health service that can influence the health of the four million women who give birth annually in the United States, and the health their infants. Despite efforts to increase women’s access to PNC services, significant disparities in PNC utilization and maternal/child health...
Resource Type:: Dissertation
Full Text:: (Markus, Andres, West, Garro, & Pellegrini, 2013; Ranji & Salganicoff, 2009). Medicaid coverage and

Local Accessibility of Objective, Classical Reality

Creator:: Kincaid, Joshua J.
Abstract:: The fact that measuring a quantum system reduces it to apparently classical behavior, eliminating the interference patterns that are a hallmark of quantumness, cries out for an explanation. That explanation has been provided by the recognition of decoherence,whereby the interference is destroyed by the very interaction that acquires information.We begin...
Resource Type:: Dissertation

A Corpus Linguistic Analysis of Pro-Nonsuicidal Self-Injury and Pro-Anorexia Public Tumblr Posts Which Use Spanish (Un Analisis de Lingüística de Corpus de Publicaciones Pública que usan Español en Tumblr que Respaldan a las Pró Autolesiones No Suicidas y Pró-Anorexia)

Creator:: Elrod, Kristeen E.
Abstract:: On social media platforms and on blog sites, disordered behavior as a lifestyle choice is a growing trend that supports and promotes behaviors related to self-harm and anorexia. Web content advocating self-harm and anorexia can be found easily through search engines or can be concealed in the social media sphere...
Resource Type:: Dissertation
Full Text:: . C., Fischer, T., Goldwich, A. D., Keller, F., Young, R., & Plener, P. L. (2018). #cutting: Non

Understanding Signals of the South Pole Ice Core: Chronology, Climate, and Firn Processes

Creator:: Epifanio, Jenna A.
Abstract:: The South Pole ice core (SPC14), drilled in the field seasons of 2014/2015 and 2015/2016, is an intermediate length, 1,751-m ice core which preserves a 54,000-year record of past climate and atmospheric composition. The SPC14 ice core adds to the spatial grid of ice cores in Antarctica extending into the...
Resource Type:: Dissertation
Full Text:: ., Ciobanu, V. G., Conway, H., Dahl-Jensen, D., Fudge, T. J., Hind- marsh, R., Keller, E. D., Parrenin, F

Quantitative, multi-spectral, light-transmission imaging of colloid transport in porous media at the meso scale

Creator:: Kraft, Erika Lorna
Abstract:: Colloids, particles smaller than ten microns in diameter, are ubiquitous in the subsurface. Colloids have an effect on the transport of contaminants that bind to their surfaces, and can reduce the permeability of aquifer materials through deposition. Some microorganisms, including pathogens, are also transported in the subsurface as colloids. The...
Resource Type:: Dissertation
Full Text:: Westall, Dr. Markus Kleber, Dr. Maria Dragila, Dr. Hatem Mohamed, Dr. Martin Schroth, Dr. Roy Haggerty

Soil Moisture Encodes Plant Water Use Strategies

Creator:: Bassiouni, Maoya
Abstract:: Resilient water, food, and energy management strategies for an ever-growing population and changing environment depends on our understanding of water and carbon cycles from local to global scales. Fluxes of water and carbon are coupled by photosynthesis and plant transpiration cycles the largest fraction of terrestrial water from the land...
Resource Type:: Dissertation

Investigating Differences between Rural and Non-rural Students

Creator:: Sinnott, Christian B.
Abstract:: Rural students have lagged behind non-rural students in matriculation into higher education, as well as in completion of four-year degrees. The current studies sought to investigate academic readiness, academic performance, and psychological differences between rural and non-rural students at Oregon State University. Rural and non-rural students were compared during spring...
Resource Type:: Masters Thesis
Full Text:: threat within a domain than those who identify moderately or lowly (Keller, 2007; Good, Aronson

Exploring the Wettability States and Contact Angle Variation in Porous Media Multi-Phase Flow Systems

Creator:: Behnoudfar, Diba
Abstract:: The wetting of a surface by a liquid is a crucial part of many natural and industrial processes. Despite numerous existing studies, some elements of wetting-dewetting such as contact angle variation are still poorly understood. Knowledge of contact angle behavior during the flow is necessary for modeling fluid displacements in...
Resource Type:: Masters Thesis

The Impact of Motivation in the University Spanish Classroom

Creator:: Canete Blazquez, Raisa
Abstract:: The study of motivation in second language acquisition has been a matter of interest for many years. The research objective of this project was to conduct a study that would determine the motivation level of students of Spanish 113 during Spring term 2016 at Oregon State University, and how their...
Resource Type:: Masters Thesis
Full Text:: , as previously stated by Plaut and Markus (2005). When people are motivated, they are willing to

Toward An Academic Theory of Social Justice Judgment and Decision-Making : Rights, Justice, and Legal Ideology

Creator:: Werner, Michael W.
Abstract:: This dissertation serves a threefold purpose: 1. identify the principles, practices and assumptions implicated in an academic theory of social justice; 2. continue moving towards articulating a theory of social justice judgment and decision making; and 3. develop a model of social justice judgment and decision making that will assist...
Resource Type:: Dissertation
Full Text:: , 2010; Markus & Kitayama, 1991). Albeit, social justice is a containment hierarchy of legal justice

Construction of Anomaly Scores and Probabilities using Random Sampling : A New Score, Efficient Computation, and Threshold Selection.

Creator:: Zongo, Kalbi F.
Abstract:: Anomaly detection is the task of identifying observations (points) that differ from the majority of other points, which requires some measure of difference, or distance. Many anomaly detection methods rely on “implicit distance” measures: rather than directly calculating an explicitly defined distance, these approaches quantify a point’s “abnormality” by examining...
Resource Type:: Dissertation

Mechanics Controls Collective Cancer Invasion

Creator:: Alobaidi, Amani A.
Abstract:: Cancer cell migration in three-dimensional extracellular matrix is a major cause of death for cancer patients. Although extensive studies have elucidated detailed mechanism of single cell 3D invasion and cell-ECM interaction, 3D collective cancer invasion is still poorly understood. 3D collective migration models have unveiled unexpected degrees of diversity and...
Resource Type:: Dissertation

Culturing uncultured environmental microorganisms

Creator:: Connon, Stephanie A.
Abstract:: Research on natural environments, over the last decade, is replete with microbial diversity studies that used culture-independent approaches. The cloning and sequencing of the 16S rRNA genes has been the driving force in the expansion of awareness about the great diversity of previously undiscovered microorganisms. Well-known uncultured groups of microorganisms...
Resource Type:: Dissertation
Full Text:: , Kevin Vergin, Markus Moeseneder, Jang-Cheon Cho, Kate Field and Kathleen Page for critical review of

Building Self Adaptive Software Systems via Test-based Modifications

Creator:: Christi, Arpit M.
Abstract:: Building software systems that adapt to the changing environment is challenging. Developers cannot anticipate all the changes in advance, and even if they could, the effort required to handle such situations is too onerous for practical purposes. Self Adaptive Software (SAS) adapts itself as per changing environment. The area of...
Resource Type:: Dissertation

Video Analysis : Techniques for Semi-Supervised Video Object Instance Segmentation and Tracking-by-Detection in the Wild

Creator:: Firl, Alrik K.
Abstract:: This thesis consists of two major components. The first part is concerned with video object instance segmentation (VOS), which is the task of assigning per-pixel labels perframe of a video sequence to indicate foreground object instance membership, given the first frame ground truth mask. VOS has myriad applications, from video...
Resource Type:: Masters Thesis

Prokaryotes associated with marine crust

Creator:: Mason, Olivia Underwood
Abstract:: Oceanic crust covers nearly 70% of the Earth's surface, of which, the upper, sediment layer is estimated to harbor substantial microbial biomass. Marine crust; however, extends several kilometers beyond this surficial layer, and includes the basalt and gabbro layers. In particular, the basalt layer has high permeabilities which allows for...
Resource Type:: Dissertation
Full Text:: nearest neighbors. Markus M. Moeseneder established basalt enrichment cultures and did DNA extractions

Multiscale analysis of saturated flow in a porous medium with an adjacent thin channel

Creator:: Morales, Fernando A.
Abstract:: This thesis contains three parts addressing the asymptotic analysis of fluid flow through fully saturated porous medium in the presence of an adjacent thin channel. In the first part the problem is modeled by Darcy's law in both the porous medium and in the channel. The permeability in the channel...
Resource Type:: Dissertation

Care Team Burnout in Human and Veterinary Medicine

Creator:: Alshaiji, Rawan
Abstract:: Medical professionals experience higher rates of burnout than other professions due to the highly stressful nature of their environment. In 2018, 94 percent of physicians reported experiencing burnout – characterized by emotional fatigue, and feelings of depersonalization and low personal accomplishment – at some point in their careers. As emotional...
Resource Type:: Dissertation

Optimizing Production of Xylindein by Chlorociboria sp. and its Potential for Use with Nanocellulose

Creator:: Van Court, R. C.
Abstract:: Fungi from the genus Chlorociboria are known for their production of the blue-green quinonic pigment xylindein. Extracted xylindein has been the subject of investigations ranging from fabric dying to use a coloring agent in paint, and shows potential as an organic semiconductor in organic photovoltaics (OPVs) and other technologies. However,...
Resource Type:: Masters Thesis
Full Text:: cyclosporin, tumor inhibitors, and statins (Keller, Turner et al. 2005, Shwab and Keller 2008). Many

Bioherbicide use of plant defensive compounds in meadowfoam seed meal

Creator:: Intanon, Suphannika
Abstract:: Meadowfoam (Limnanthes alba Hartw. ex Benth) seed meal (MSM), a by-product of meadowfoam oil extraction, has a plant defensive compound known as glucosinolate glucolimnanthin (GLN). Myrosinase enzymes present in soil microbes and meadowfoam seeds can convert GLN to glucosinolate breakdown products (GBPs), which demonstrate herbicidal activity and have the potential...
Resource Type:: Dissertation
Full Text:: enlightening discussions provided by Dr. Bruce McCune. I would like to thank Dr. Andrew Ross and Dr. Markus

Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

Creator:: Klasek, Scott A.
Abstract:: Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...
Resource Type:: Dissertation
Full Text:: Reed, Nancy Keller, and Scott Kennedy for allowing me to work in their laboratories as an

Building a bridge from chromosomes to microtubules in Neurospora crassa

Creator:: Friedman, Steven
Abstract:: DNA is often described as the “blueprint for life”. In eukaryotes this information is contained within linear chromosomes of varying size and number. During cell division, the chromosomes must be faithfully segregated into each daughter cell to avoid disease and sustain life. This process is carried out by the kinetochore...
Resource Type:: Dissertation

Multicellular monolayer’s self-organization under external stimuli

Creator:: Li, Guanyu
Abstract:: Cell signaling under external stimulation is a critical mechanism that governs many biological processes such as cell proliferation, cell migration, and cell apoptosis, etc. For multicellular organisms, the ability to synchronize heterogeneous individual cellular responses through intercellular communication is crucial to maintain normal functionality. However, even though the biological pathways...
Resource Type:: Dissertation

Random access machine in secure multi-party computation

Creator:: Hu, Zhangxiang
Abstract:: Secure multi-party computation (MPC) is a conceptual framework in cryptography. It allows distrusting parties engage in a protocol to perform a computational task while still maintain some secure properties. Most existing approaches are required to interpret functions as a boolean circuit. With the recent state-of-art circuit garbling scheme, the performance...
Resource Type:: Masters Thesis

Whose community is it anyway? : the CDA and cultural conflicts over speech and pornography

Creator:: Christian, Mary Ann
Abstract:: The Communication Decency Act became law in 1996 and was immediately challenged on Constitutional grounds. It was subsequently declared unconstitutional based on the First Amendment guarantee of free speech. Using Fantasy Theme Analysis, an analysis of the dramatic elements of the key players was accomplished. The dramatic elements of Overall...
Resource Type:: Masters Thesis
Full Text:: their support. I would also like Deltra Ferguson, Jon Nelson and George Keller for their belief in me

The Relationship Between IGF-1 and Bone Turnover in a Non-Human Primate Model of Voluntary Alcohol Consumption

Creator:: Sattgast, Lara H.
Abstract:: Alcohol is a widely consumed, nonessential, bioactive nutrient with end-organ effects on the skeleton. Moderate levels of alcohol consumption are generally associated with increased bone mineral density (BMD), whereas higher intake levels result in reduced bone formation, bone loss, and increased risk for osteoporotic fracture. Given the negative impact of...
Resource Type:: Dissertation

Keeping your Friends Secret: Improving the Security, Effciency and Usability of Private Set Intersection

Creator:: Rindal, Peter B.
Abstract:: Private set intersection (PSI) allows two parties, who each hold a set of items, to compute the intersection of those sets without revealing anything about other items. Recent advances in PSI have significantly improved its performance for the case of semi-honest security, making semi-honest PSI a practical alternative to insecure...
Resource Type:: Dissertation

Towards Resolving Functional and Evolutionary Mysteries of the Large and Heterozygous Genome of Hop (Humulus lupulus) and the Cannabaceae Family Using Genomic Data Science

Creator:: Padgitt-Cobb, Lillian K.
Abstract:: Hop (Humulus lupulus L. var. lupulus) is a diploid, dioecious plant with an extensive history of cultivation and use in brewing, as a textile, and for its therapeutic properties. Hop is prized for its ability to produce a variety of aromatic and flavor compounds, as well as compounds with anti-microbial...
Resource Type:: Dissertation

Towards Automating Type Changes

Creator:: Ketkar, Ameya S.
Abstract:: Developers frequently change the type of a program element and update all its references for performance, security, concurrency, library migration, or better maintainability. Despite type changes being a common program transformation, it is the least automated and the least studied. Manually performing type changes is tedious since the programmers have...
Resource Type:: Dissertation

Tackling Credit Assignment Using Memory and Multilevel Optimization for Multiagent Reinforcement Learning

Creator:: Khadka, Shauharda
Abstract:: There is growing commercial interest in the use of multiagent systems in real world applications. Some examples include inventory management in warehouses, smart homes, planetary exploration, search and rescue, air-traffic management and autonomous transportation systems. However, multiagent coordination is an extremely challenging problem. First, information relevant for coordination is often...
Resource Type:: Dissertation

A Hand Up, Not a Hand Out : Negotiations of Poverty and Class Among Low-Income Oregonians

Creator:: Montañez, Morgan
Abstract:: The Linn and Benton County Gleaner network has helped the low-income families of urban and rural Oregon reclaim moral, social and cultural capital that is lost in the act of being poor in America. Rather than participating solely in government safety nets, these people reject “hand-outs” in favor of exchanging...
Resource Type:: Masters Thesis

Characterizing Linkages Between the Climate, Cryosphere, and Impacts on Run-of-River Hydropower in Data-Sparse Mountain Environments

Creator:: Mosier, Thomas M.
Abstract:: In many regions of the world, a significant portion of the surface water originates in mountain headwaters where the timing and magnitude of streamflow is largely dictated by the seasonal storage of precipitation as snowpack and long-term storage as glaciers. Accumulation, persistence, and melt of snow and ice are functions...
Resource Type:: Dissertation

Advancements in the Monitoring of Forests and Quantification of Live Aboveground Biomass Using Moderate Resolution Spaceborne Multispectral Imagery and Synthetic Aperture Radar Data

Creator:: Kilbride, John B.
Abstract:: The objective of this dissertation is to enhance the monitoring of forest ecosystems through the utilization of remotely sensed data to address the exigencies posed by the Anthropocene. On a global scale, rising temperatures and fluctuating precipitation patterns have strained forests and produced shifts in natural disturbance regimes. Additionally, the...
Resource Type:: Dissertation

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