Root rot of sweet corn in western Oregon and Washington is a significant disease that
can reduce yield of intolerant cultivars of processed sweet corn by fifty percent. Root rot
is caused by a complex of soilborne organisms, including Drechslera sp., Phoma
terrestris, and Pythium arrhenomanes. Processors have adopted tolerant...
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Alexandra G. Stone
Root rot of sweet corn in western Oregon and Washington is a
Winter squash is an important late winter vegetable crop for local and regional markets; however, farmers in western Oregon report that this crop is marginally profitable due to losses in storage and relatively low yields for the high culinary value kabocha and buttercup types. In order to increase the sales...
The effect of serial (multiple-year) organic matter (OM) amendment on soil properties has been described in some cropping systems, although less is known about the effect of serially amended field soils on soil-borne plant diseases. The objectives of this study were to describe the effects of the third and fourth...
As part of a participatory research project, where farmers and Oregon State University researchers collaborated, aspects of potato (Solanum tuberosum L.) growing systems were studied. It was determined through conversations with the farmers that quantification of certain growth parameters of potato was lacking, including dry matter accumulation, crop nitrogen (N)...
A wave-by-wave forecasting system is desired for optimization of wave energy conversion devices and for improving safety of vessel-based marine operations. This study outlines the first validation attempts of a recently developed forecasting system called Wavecast. The forecasting approach uses X-Band marine radar images for data assimilation, then reconstructs and...
Watermelon (Citrullus lanatus) is rich in lycopene and citrulline and has high phenolic content and antioxidant capacity. Previous studies demonstrate the health benefits of watermelon intake on improved blood pressure regulation along with others. Similarly, cherries, raspberries, walnuts and green tea are rich in anthocyanins, polyphenols, and polyunsaturated fatty acids...
Rockfish Conservation Areas (RCAs) are large areas closed to fishing in federal waters off the Washington, Oregon and California coasts. The Pacific Fisheries Management Council (PFMC) was responsible for the creation and regulation of the RCAs. The RCA boundaries were defined in 2002 to rebuild rockfish species declared as overfished...
This research analyzes how family forest owners conceptualize biodiversity in one high-conservation value area of oak woodland in the Willamette Valley of Western Oregon. Oregon white oak (Quercus garyanna) woodland, one of the most biologically diverse ecotypes in the state of Oregon, is in decline. Much of the oak ecotype...
On February 9th, 2014 Michael Sam stated in an interview with ESPN's "Outside the Lines" that he is gay. Since he was drafted, Sam will become the first ever openly gay player in NFL history. The following study aims to explore ESPN's coverage of Michael Sam, with a goal of...
Experimental Drainfields: Standard subsurface sewage disposal systems, gravity loaded and 60 cm deep on slopes above 15% did not show signs of effluent surfacing after 14 months of operation. However, subsurface signs of failure were found on both the experimental sites and on older drainfields established in identical soils. Evidence...
Red Light Ladies presents a perspective on prostitution in North America, within the context of the western mining frontier. A biographical profile of the frontier
prostitutor is presented, along with an archaeological model of settlement patterns and material culture. Settlement patterns and demographic changes in the prostitutor
population are hypothetically...
Stevia (Stevia rebaudiana) is a perennial herbaceous plant native to Paraguay and used traditionally by the native Guarani peoples for centuries to sweeten medicinal teas. Stevia has only been commercially cultivated over the past 50 years and cultural practice information suitable for implementation by growers is limited. Currently stevia’s commercial...
Oregon has been moving forward with biomass energy development. Large-scale biomass power and cogeneration (producing heat and electricity) have been the focus of the last twenty-five years, while small-scale thermal bioenergy installations (producing heat) have dramatically increased during the last decade. In eastern Oregon, bioenergy is closely linked to restoration...
Cabbage maggot, Delia radicum (Diptera: Anthomyiidae) impacts the production of Brassicaceae crops worldwide. The larva feed on the roots of crops causing reductions in yields due to impaired root function and unmarketability of crops. Chemical and cultural management programs are commonly used to control cabbage maggot with varying rates of...
This work investigates a methodology for estimating the ocean stratification gradient based on high-resolution, in space and time, remote sensing observations of internal wave propagation speeds. The internal wave speed observations were collected using a shore-based, X-band marine radar and the ocean vertical density profiles were collected simultaneously from an...
Research shows that women's lives are disproportionately impacted by the effects of climate change. While the topic of women is largely absent from climate discourse overall, the representations of women that occur reveal underlying structures of power rooted in imperialism and colonial dominance. This thesis presents an analysis of the...
Racial, ethnic and gender diversity have been long term topics of discussion in natural resources. Yet to date, there has not been a comprehensive review of the existing literature within the discourse of demographic diversity. Therefore, I conducted a systematic review of demographic diversity in the disciplines of forestry, fisheries,...
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...
Nares Strait is one of three main passages of the Canadian Archipelago that
channels freshwater from the Arctic Ocean to the North Atlantic. There are very few
observations regarding the role of this region on the present day Arctic freshwater budget,
and even less regarding the changes in freshwater fluxes...
My thesis is comprised of two articles, titled "Interpreting Britomart's Encounters with Art: The Cyclic Nature of Ekphrasis in Spenser's Faerie Queene III," and "Picture This, Imagine That: Teaching Visual Literacy in the Disciplines." The purpose of my first article is to argue that Edmund Spenser uses ekphrasis in his...
The Emigrant Pass volcanics (EPV) are a 38.3 to 36.4 Ma calc-alkaline volcanic center that erupted andesite and dacite, and a late series of felsic dikes along the south flank of the Carlin gold district in north-central Nevada. The EPV includes dacite and rhyolite porphyry dikes indistinguishable from porphyry dikes...
In a steady state, the Earth's absorbed solar radiation (ASR) balances the outgoing
longwave radiation (OLR) at the top of the atmosphere (TOA). In response to a radiative
forcing, that is, an external perturbation to the top of the atmosphere energy balance, the
Earth's climate system adjusts until reaching a...
Brenda Ueland is a writer whose most noted work is a book which
explains her theory about how to write. She also published an
autobiography and a co11ection of essays as well as achieving some
notoriety as a magazine writer to the twenties and thirties. Ueland's
writing theory is based...
A Regional Ocean Modeling System (ROMS) application for the coastal region of Kenya and Tanzania (0-10° S, 38.7-46.98° E) was developed with the aim of better resolving the circulation patterns in the coastal region that is poorly represented in global models. The model has a horizontal resolution of 4 km,...
Common root rot is a major disease of commercially grown snap bean (Phaseolus vulgaris L.) on the irrigated sandy soils of central Wisconsin. The objective of this study was to determine the relationships between soil properties and suppressiveness to common root rot of snap bean (causal agent Aphanomyces euteiches) in...
Astragalus diaphanus is a rare plant endemic to the
John Day River drainage of north-central Oregon. This
species has several interesting features, including the
dimorphism of its fruit and its geographical isolation from
the two nearest taxonomically related species, which occur
in Colorado. This study addressed the species' distribution
and...
This thesis examines the representation of consumer culture in Fight Club within the context of Frederic Jameson's theory of postmodernism. I propose that the film represents consumer culture as a totalizing system. This representation is evident in the setting of the film and in the Narrator's attempt to escape from...
Blueberry production in Oregon is highly reliant upon the ecosystem services of native pollinators, which provide as much as a quarter of the total pollination services received by Blueberry growers. However, the health of these pollinator populations may be affected in yet unforeseen ways as growers adopt new pest management...
Cognitive Radio Networks (CRNs) enable opportunistic access to the licensed channel resources by allowing unlicensed users to exploit vacant channel opportunities. One effective technique through which unlicensed users, often referred to as Secondary Users (SUs), acquire whether a channel is vacant is cooperative spectrum sensing. Despite its effectiveness in enabling...
In this thesis, data collected during the Dynamics of the Madden Julian Oscillation (DYNAMO) field campaign, conducted in the Indian Ocean in Fall of 2011, is used to compute heat fluxes at the air-sea interface by evaluating eddy covariances and bulk aerodynamic formulae. Errors in daily average gridded fluxes computed...
Phytoplankton and microzooplankton comprise the base and the first link of the marine food web, respectively. These microbes are key drivers of marine carbon and nutrient cycles. Phytoplankton convert atmospheric CO₂ into organic carbon, and microzooplankton consume phytoplankton, packaging phytoplankton carbon into particulate forms that have a variety of fates:...
Group Engagement Theory describes the relationship between citizen perceptions of policy, individual identity and status judgements, and individual group engagement decisions. Utilizing a least likely crucial case methodology, this paper uses the case of Josephine County, Oregon to determine the validity of the Group Engagement Theory prediction that citizen identity...
Accurate information of power network parameters is essential for performing various power system monitoring and control tasks including state estimation, economic dispatch, and contingency analysis. In this paper, we present a novel approach of power network parameter correction wherein we exploit the sparse nature of parameter errors. Parameter error correction...
A biological inventory of the butterflies of the H. J. Andrews Experimental Forest [HJA] in Linn/Lane County, Oregon was conducted during 1994 and 1995. It was the first comprehensive survey of HJA butterflies for the site and serves as a baseline for future butterfly research. A detailed ecological account is...
This thesis describes an investigation of the natural products chemistry of two fungal species of the genus Tolypocladium. Natural products are small organic molecules that are considered non-essential for cell growth and reproduction, and thus part of secondary metabolism. Chemical profiling of these secondary metabolites using a combination of high-performance...
2020 and 2021 brought the first reported outbreaks of salmonellosis epidemiologically linked to dry bulb onions in the United States. Outbreak investigations were not able to implicate a specific source of the contamination but speculated that contaminated water was a significant contributor. The Produce Safety Rule established minimum standards for...
Pesticides benefit agriculture by increasing crop yield, quality, and security. However, pesticides may inadvertently harm bees, which are valuable as pollinators. Thus, candidate pesticides in development pipelines must be assessed for toxicity to bees.
Leveraging a data set of 382 molecules with toxicity labels from honey bee exposure experiments, we...
Annual flood damages continue to rise in the United
States in spite of massive investments in flood control structures
since 1936. These increased losses can be attributed, in part,
to the inherent Limitations in scope and nature of traditional
"structural" approaches to flood control. Acquisition of flood
plain lands is...
What does comida rica mean? In this thesis, I explore the meanings of comida rica, sana, and de nuestra tierra through the discourses, practices, and kitchen geographies in six urban, highland households in the Ecuadorean Andes. This research, as part of a larger investigation carried out by a team of...
Symbioses are a spectrum of interactions between organisms living in closeassociation. These intimate interactions range from mutualism, in which bothorganisms benefit, to parasitism, where one organism benefits at the expense ofthe other. Horizontal gene transfer is the acquisition of genes independent ofvertical transmission and demonstrably promotes the transition of bacteria...
This thesis seeks to determine whether a self-driving car's behavior should depend on the hearing status of its passengers: namely, hard-of-hearing (including deaf) or hearing. It is believed that auditory deprivation provokes adaptations in visual attention. These adaptations may lead to atypical movement patterns that can translate to different driving...
Severe wildfires are increasing in the western United States, impacting vegetation structure, and in turn, forest regeneration conditions. These wildfires are also raising a substantial amount of scientific and management concern regarding the resilience of forested ecosystems, or the ability of the ecosystem to return to a pre-fire condition. This...
Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
Background information is presented that provides historical perspectives on the field of mycology in the Pacific Northwest and its role in forest management. The series of events and decisions that have led to previous studies (or lack of studies) in the field also dictate the directions of current research. Culture,...
In February 1905 the Oregon State Academy of Sciences formed in
Portland to promote scientific research and diffusion of scientific
knowledge in Oregon. The founders also planned to assist in the
discovery and development of the state's natural resources. The
Academy was the first scientific society in Oregon with professional...
In this thesis we study a numerical analysis problem motivated by the need to simulate an event such as an oil spill in a deep water environment. Numerical simulation can help to mitigate the disastrous effects of such events by aiding the management of risk assessment and recovery efforts.
However,...
Agrobacterium tumefaciens is a plant pathogenic bacteria which incites
crown gall tumors. Although virulence has been associated with a
97-156 Mdalton "tumor-inducing" (Ti) plasmid, few potential plasmid gene
products have been identified. The objective of this study was to
identify plasmid-coded gene products through a comparison of protein
fingerprints of...
The Personal Responsibility and Work Reconciliation Act of 1996 brought several changes to the welfare system. Among these changes are lifetime limits for receiving welfare benefits, and work requirements intended to foster economic self-sufficiency in welfare recipients. In the past few years, it has been acknowledged that there are challenges...
The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...
An experiment was conducted to determine the effect of dietary copper (Cu)
on Cu status and lipid metabolism in Holstein and Jersey cattle. Eight Jersey and8
Holstein cows in mid-lactation were blocked by days in milk (169 ± 37) and
assigned at random to one of two diets. Cows received...
The Israeli-Palestinian conflict is one of the most contested and complicated conflicts in the world. As one of the occupied Palestinian Territories recognized by the United Nations, the social and environmental conditions in Gaza are impossible to understand without reference to the occupation of Gaza by its neighbor Israel. Hostilities...
Discussions of ecopoetics often seek to investigate how poetics as a form can be rendered more ecological, often in contrast to nature poetry. These conversations tend to concentrate on this generic contrast and the formal qualities of an ecological poetics. Ecopoetics as a field emerged largely as a response to...
Molten salts have been targeted as a promising coolant for next generation reactors due to their high boiling point, heat capacity, and thermal conductivity. Despite these benefits, molten salt systems present unique materials compatibility issues, highlighted by the aggressive corrosion attack and dealloying typically seen on materials in these environments....
Cities of the world today house more than half the world’s population, contribute to 80 percent of the global GDP, consume approximately 70 percent of the global energy and produce 70 percent of the greenhouse gases produced worldwide (Floater et al., 2014; Intergovernmental Panel on Climate Change, 2014). City governments...
Vital rates and population connectivity are fundamental concepts in animal ecology and such information is critical for successful conservation planning. The Black-backed Woodpecker (Picoides arcticus) is a species of conservation concern because of its strong association with forests recently burned by high-severity wildfire. However, several recent studies have found that...
Quaking aspen, Populus tremuloides, has experienced severe declines in recent years in part due to the effects of changing climate and extreme drought. As the dominant deciduous tree in Western North American forests, aspen plays a critical role in forest biodiversity and ecosystem function. Therefore, the persistence of this species...
The influence of streambank location and timing of herbivory on success of planted Booth's willow (Salix boothii Dorn) cuttings along a Rosgen C5-type stream in an eastern Oregon meadow was determined. Willow cuttings were planted on two morphological locations (i.e. point bar and floodplain) in May of 2002 and 2003....
Listeria monocytogenes is a foodborne pathogen frequently associated with food processing environments. Its presence is particularly concerning in facilities handling minimally processed and ready-to-eat foods. Recent outbreaks associated with fresh produce, such as packaged salads and mushrooms, highlight the need to better understand and control these pathogens in environments that...
The objective of this research is to support DfX considerations in the early phases of design, particularly Design for the Environment. In order to include DfX considerations, especially early in the design process, there needs to be access to knowledge and information that is usually only applicable further downstream in...
Objective: Red raspberries are rich in polyphenols and fiber, relatively low in sugar compared with other fruits, and have been demonstrated to have favorable effects on energy homeostasis in mice. However, it has been unclear precisely which compounds within red raspberries possess the greatest bioactivity, and their mechanism of action....
Within the Pacific Northwest, USA, root diseases of conifers are a major forest health concern. These diseases are primarily caused by basidiomycete fungi. These fungal associates play a vital role in carbon sequestration but also have a significant negative economic impact within the timber industry. As a result, research on...
The purpose of this thesis was to compare the 5-hour experimental
(CT 213X) and the two 3-hour existing (CT 210-CT 212) elementary
clothing construction courses at Oregon State University in
terms of the composition of students in each course, the student's
background and the achievement of each group in knowledge...
John Archibald Wheeler (09 July 1911- ) is a familiar name to physicists and historians of physics alike. Among his many contributions to the corpus of knowledge, in 1939 John Wheeler and Niels Bohr co-authored the first paper on the generalized mechanism of nuclear fission. Beyond that seminal work, Wheeler...
The aim of this thesis is to study past 10 years of security vulnerabilities reported against Linux Kernel and all existing mitigation techniques that prevent the exploitation of those vulnerabilities. To systematically study the security vulnerabilities, they were categorized into classes and sub-classes based on their type.
This thesis first...
This thesis examines the food insecurity experiences of student clients of the Oregon State University Emergency Food Pantry. Utilizing semi‐structured interviews and participant observation at the food pantry, this study investigated who is using the food pantry, the forms of food insecurity they experience, how they cope with it, and...
Ambiguity is a typical element of treaty documents. Its success in accommodating divergent interests, creating boundary conditions leading to dispute prevention and facilitating the conclusion of agreements has been widely recognized, yet less is known whether or not intentional ambiguity or unintentional ambiguity, or perhaps both, lead to challenges or...
The goal of this thesis is to ease the adoption of energy-efficient (EE) building strategies for affordable homes in the United States (US). Low-wage earning households spend nearly three times the proportion of their gross annual income on home energy bills resulting in higher energy burden for them when compared...
Linkages between land use and its influence on the atmosphere have been a long-standing research area. For example, what is the impact of irrigated agriculture on downwind rainfall? Global-scale models show that moisture recycling is an important source of water for inland regions around the world, but they do not...
Wine grape pomace (WGP), the byproduct from winemaking, is a good source of polyphenols and dietary fibers, and may be utilized as antioxidant dietary fibers (ADF) for food applications. The objectives of this thesis research were to first determine the phenolic compounds, antioxidant and antimicrobial activities in red WGP under...
Following a history of tensions surrounding concubinage in medieval and early modern Spain, the Church sought greater control of religious life, particularly over the sacrament of marriage, via the Holy Office of the Inquisition. The Church exercised its strengthened restrictions and prosecuted these relationships with more frequency, as did civil...
Root rot diseases of bean (Phaseolus vulgaris L.) are a problem wherever they are grown, and are a major constraint to dry edible and snap bean production. Root rot is a primary yield limitation of snap bean production in the US, especially within the top three snap bean producing states...
Ensuring correctness of real-world software applications is a challenging task. Testing can be used to find many bugs, but is typically not sufficient for proving correctness or even eliminating entire classes of bugs. However, formal proof and verification techniques tend to be very heavy weight and are simply not available...
The ongoing “method war” in literary criticism that has manifested as the impasse between Critique and Postcritique, which are identified respectively with paranoid and reparative modes of reading, raises existential questions about criticism in the face of its declining social value under neoliberalism. This thesis enters that impasse to suggest...
This thesis explores the use of Supplemental Nutrition Assistance Program (SNAP) benefits at the Corvallis and Albany, Oregon Farmers' Markets and its role in food access for SNAP participants. Utilizing a mixed-methods approach combining a farmers' market survey and household interviews, the study investigated who uses SNAP at the farmers'...
Production of fresh produce takes place outdoors, and therefore, is exposed to many routes of contamination (e.g., soil, contaminated water, manure, etc.) by human pathogens. Although precautions are taken to reduce this risk, pathogens can be regularly introduced to produce handling facilities. To manage the risk of cross-contamination from potentially...
I am a woman who writes. I am a writer who is a woman. In the Words
of a Woman is an exploration of how these two facts of my life merge and
influence each other. It is a work written to mediate between the supposed
dichotomies of creative and...
Humboldt Redwoods State Park in southern Humboldt County, California is a coastal redwood forest, a highly unique and valued ecosystem. It has many social, cultural, ecological, and economic values, including recreational benefits, heritage and aesthetic values, high biodiversity, nutrient cycling, and climate regulation. However, Humboldt County is at risk of...
Civil engineers are aware of the impacts of structures on the global environment but the environmental impacts of a fire within these structures remains unknown. Fires present a unique hazard as it is difficult to predict the probability of the occurrence and the intensity. Traditional methods to identify the environmental...
This thesis will address the transformation of biological sciences during the 1930s and 1940s and it effects on fisheries science. It will focus on Oregon State College and specifically the Department of Fish and Game Management and the interaction with the Oregon Game Commission. Support for mutation theory and neo-...
The veteran population, about 18.5 million Americans in 2016 (US Census Bureau, 2018), is particularly at risk for mental health problems. As an example, the suicide rate of veterans is about one and a half times higher than the general population (US Department of Veteran Affairs [DVA], 2018b). Another group...
Dimensional stability of wood-based composites with changing moisture content remains an important challenge in the industry for many applications. Wood modification technologies have shown significant improvement in dimensional stability by altering the chemistry of the wood substrate, or by filling the available space in the wood microstructure that otherwise would...
With the advent of Artificial Intelligence (AI) in every sphere of life in today's day and age, it has become increasingly important for non-AI experts to be able to comprehend the underlying logic of how AI systems work, assess them and find faults in these systems, particularly when they are...
Environmental crime around the world, such as trafficking in illegal timber, is directly related to political instability. Traffickers exploit weak, fragile, and chaotic political circumstances to illegally extract high-value commodities, challenging the extent to which conservation goals are achievable in resource rich developing countries. Rosewood is the largest traded endangered...
The LGBTQ population is widely recognized as an at-risk demographic—as a result ofstigma, studies report sexual and gender minorities experience elevated risk for depression,suicide, anxiety, and substance abuse, as well as greater exposure to sexual, physical, andinterpersonal violence (Logie 1244). Asexuality, a marginalized population traditionallyexcluded from the LGBTQ acronym, poses...
The production of high-quality wine is an important target for wineries worldwide, and low crop level (yield) has been one vineyard management criterion long believed to achieve wine quality. Low yields are most often achieved by removing clusters from the grapevine. Some studies show that cluster thinning can enhance grape...
Music is one of the most important aspects of cultural identity in Corsica. Rooted in ancient history and revitalized in the revolutionary political climate of the 1960s and 70s, its popular choral form--the paghjella--has come to define modern music upon the island. Music, like language, has the ability to communicate...
The Northern Rubber Boa (Charina bottae) is a small, secretive boa native to the Pacific Northwest. Despite this being possibly the highest latitude boas and one of only two boas native to the continental U.S., it has received surprisingly little attention. Most of the research on the natural history of...
A provenance study of crypto-crystalline silicates was performed at the Cooper's Ferry archaeological site in west-central Idaho on the Columbia Plateau. In this research, the author used instrumental neutron activation analysis as well as portable x-ray fluorescence to examine and characterize the geochemistry of 300 geologic samples of crypto-crystalline silicates...
Archaeological investigations can reveal persistent traditions of ethnic
groups. Hawaiians were employed in the fur trade of the Columbia River from
1810 through 1850. The Hudson's Bay Company employed them at Ft.
Vancouver, Washington from 1825 through the end of this period. Data from
the excavations of the servant's village...
Over the past 42 years clay smoking pipes have been excavated from two U.S. army posts, Fort Hoskins (35BE15) and Fort Yamhill (35PO75) and curated at Oregon State University. These two forts were established in Western Oregon in 1856 and by 1866 both had been decommissioned. Numerous theses have focused...
The television show South Park, created by Trey Parker and Matt Stone, is viewed by millions of people each week, regularly addresses a number of controversial issues and plays a major role in contemporary popular culture. Current academic research acknowledges Parker and Stone's willingness to attack the dominant views surrounding...