The purpose of this study, initiated early in the development of
mechanical caneberry harvesting, was to provide timely information
for early management decisions concerning mechanical harvesting.
This was accomplished through an economic comparison of mechanical
and hand harvesting of selected types and varieties of caneberries.
Consideration was given to the...
Clear and unbiased question wording is important to obtaining consistent and accurate survey results. However, if the goal is not to obtain accurate results but instead to obtain a specific result, then altering question wording may be effective. To examine this possibility, we created a survey with 9 different versions...
Linear M-mode (1D) and later 2-dimensional (2D) measurements of the left atrium (LA) are commonly been used to assess LA size in veterinary studies despite the fact that studies in human subjects have shown that LA volume (LAV) more accurately reflects LA size than linear measurements due to the complex...
This study was designed to investigate the relationship between retinol intake, bone mineral density, and falls in 101 elderly women aged 72 to 90 years (78.6 yrs. ± 4.3 yrs.). Bone mineral density (BMD) (g/cm²) of the left hip, anterior-posterior lumbar spine (L3), and lateral spine (L3) was measured using...
Rising energy costs coupled with the diminishing incomes associated with rural economic restructuring leave an increasing proportion of rural households faced with the heat or eat dilemma--where families must choose between meeting one basic need over another, such as putting food on the table or keeping the heat on. Effective...
This thesis examined factors that contribute to residential mobility, specifically
looking at which aspects of a family’s current situation pushes them out of their current
home and what factors pull them into new locations. Residential mobility is of particular
interest to developmental scientists because of the possible detrimental consequences for...
Use of solid compensators is a very effective means of implementing IMRT on any linear accelerator. The standard practice has been IMRT delivery using accelerators equipped with multi-leaf collimators (MLC’s). Truth is the addition of MLC’s to an accelerator is quite expensive. Previous studies have shown solid compensators to have...
Pre-med attrition is the loss of students participating in academic pre-medical programs over time. Attrition in medical school has been the subject of many studies, but pre-med attrition is less researched, despite its relevance to the emergence and performance of future medical professionals. Interviewing former pre-med students who chose other...
The following pages set out to document the German far-right since 1945, along with the responses from the German government and the experience of minorities that extremists tend to target. This study finds that the German government’s heavy-handed response to visible far-right political parties as early as the 1950s consequently...
Housing is a critical component of family life, however, keeping a safe and stable roof overhead is increasingly difficult for the approximately 21 million low-income families in the United States (Urban Institute, n.d.; U.S. Census, 2015). Low-income families struggle to keep a roof overhead within the context of rising housing...
In light of recent economic and social changes rural communities continue to worry about the future of their young people. Will they be prepared for the challenges that lay ahead as they move into adulthood? The aspirations youth hold set them on a pathway toward achieving goals, beginning post-secondary education,...
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KatherineA. MacTavish
In light of recent economic and social changes rural communities
This analysis uses data from a larger ethnographic study examining community effects of mobile home park residence on child and youth development to explore the resilient pathways of 8 mothers and maternal guardians in order to understand better how successful adaptation is achieved despite significant threats present throughout the life...
As a targeted attack is unfolding against LGBTQ+ people across the U.S. right now, the unique experiences of queer and trans people deserve more attention. Transgender people are subjected to unique forms of discrimination and marginalization through cisnormativity (i.e., the assumption that everyone is and should be cisgender) and transnormativity...
In this dissertation, I qualitatively examined the meaning of mothering a child with autism in two countries: the United States and South Korea. The overarching research question focused on how sociocultural ideas about mothering and disability, particularly autism spectrum disorders, shape women’s understanding of themselves and their children with disabilities....
Firefighting is a very hazardous profession. Firefighters experience an injury rate that is three times higher than other physically demanding professions and the death rate in the fire service is also much higher compared to typical. Throughout the literature, data suggest the physical nature of firefighting contributes to the high...
Girls on the Run (GOTR) is a community-based running program that encourages social, mental, emotional and physical development in young girls through the process of training for a 5k running event. Previous reports have shown that GOTR has positive effects on self-esteem and dietary behaviors; whether GOTR influences levels of...
Sweetpotatoes are a highly nutritious staple crop, playing an important role in global nutritional security. Although the majority of research in the United States (U.S.) focuses on the cultivation of the storage roots, both the leaves and roots are edible. Sweetpotatoes are indigenous to the Andes Region of South America;...
The prevalence of overweight and obesity in children and adolescents continues to rise
and is considered a major public health problem. The aim of this investigation was to
evaluate the contributions of sport participation, and calcium intake (controlling for mean
energy intake, sex, and maturation status) on the development of...
Sotalol is a class III anti-arrhythmic drug with class II properties that is commonly used in the treatment of ventricular tachyarrhythmias in dogs. The anti-arrhythmic effects of sotalol are mediated by an increase in action potential duration and prolongation of atrial and ventricular repolarization via antagonism of the delayed rectifier...
Purpose: This study examines the relationship between community-based fitness class participation and risk for falls in adults aged 55 or older. Our aim was to compare scores on fall risk factors between community-based Better Bones & Balance® (BBB) participants and active peers who engage in other (non-BBB) community-based fitness classes....
Pulmonic stenosis (PS) is one of the most commonly encountered congenital cardiac defects in canine patients. English bulldogs have an increased risk of PS as compared to other dog breeds and have a higher reported prevalence of type II/type B/dysplastic pulmonic valve morphology. It has been shown that the dysplastic...
Family influence in the home environment has been linked to children’s nutrition and physical activity behaviors. However few tools exist to identify family level behaviors and families’ readiness to change those behaviors, particularly for populations at high risk for obesity such as Hispanics. This study summarizes the relationships of similar...
Purpose: This study examines the relationship between food insecurity (FI) risk and families’ readiness to change obesity-preventing behaviors within rural home-environments.
Methods: Families (n=144) were recruited through six elementary schools (K-5/6) in low-income, rural, Oregon communities. Families completed surveys including a FI risk screener and the Family Stage of Change...
Classroom-based physical activity (CBPA) breaks are a common and cost-effective physical activity (PA) promotion strategy at elementary schools. Nevertheless, there is limited research examining how teacher-level factors such as value for PA and perceived support to deliver CBPA breaks influence teacher implementation of CBPA breaks. In addition, to date no...
Studies in young women show that rowing exercise is osteogenic at the spine. However, little is known regarding rowing exercise and spine bone mineral density in older women. The aim of this study was to examine differences in spine bone mineral density (BMD) and back strength between premenopausal and postmenopausal...
Better Bones and Balance (BBB) is a community-based exercise program to improve bone health and reduce fall risk among older adults. Prior research has shown that when the program is delivered by researchers under controlled conditions, participants improved strength and balance, and maintained bone mineral density (BMD) at the hip....
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Katherine B. Gunter
Better Bones and Balance (BBB) is a community-based exercise program to
Wind-driven coastal upwelling brings subsurface water onto the central-Oregon shelf after the spring transition each year. This cold and salty source water is oxygen-poor, yet above the hypoxic threshold, dissolved oxygen < 1.4 ml l⁻¹. Once on the shelf, dissolved oxygen (DO) concentrations of upwelled near-bottom waters are modified by...
Forest soils of the Pacific Northwest contain immense amounts of carbon (C). Increasing acreage burned by severe wildfire in the western Oregon Cascades threatens belowground carbon stocks and future site viability. This study investigates forest soil carbon changes after the 2020 Holiday Farm wildfire in a young, intensively managed Douglas-fir...
In June 1999, I was a volunteer for a United States non-governmental organization, Crossroads Africa. I joined six other American women traveling to Ghana, West Africa to participate in a collaborative program designed by the Ghana Red Cross Society and Crossroads Africa. Specifically our group was assigned to work on...
Blackberry pomace (BBP), a byproduct from juice processing, is often disposed of in landfills. We propose BBP as an antioxidant-rich feed supplement for transition dairy cows. To explore the effects of BBP on antioxidant status, 24 multiparous dairy cows (5 Holstein and 19 Jersey) were assigned randomly to one of...
The typical coho salmon life history has been characterized by juvenile fish that spend their entire first year in freshwater habitats before migrating into estuaries as smolts. However, reports of early migrating coho fry (age 0), including migration downstream to estuarine habitats, date back to the 1960s. Until a few...
Few remote health monitoring (RHM) studies have included Mexican-origin Latinos, and even fewer have explored RHM acceptance and utility, reasons for RHM uptake success or failure, or how cultural values influence RHM use among this population. The primary purpose of this study was to determine the remote health monitoring (RHM)...
Coastal flood hazard zones and the design of coastal defenses are often devised using either the maximum recorded total water level (TWL) or a 'design' event such as the 100-year return-level flood, usually projected from observed extreme events. Despite technological advances driving more consistent instrumental records of wave heights and...
Environmental education programs seek to foster an appreciation for the natural world while introducing students to scientific thinking. Citizen science engages non-scientists in the systematic collection and analysis of data. The Betts Forest Landscape Ecology Lab combines both goals by inviting teachers in Corvallis, Oregon, and surrounding areas to participate...
This study investigated the effect of captivity on the chemical profiles of the female sexual attractiveness pheromone of the red-sided garter snake (Thamnophis sirtalis parietalis). Dorsal skin lipids were extracted from female garter snakes collected from the Interlake region of Manitoba, Canada. A comparison of captive and wild snakes was...
This thesis is an arrangement of essays, poems, and journal entries expressing and
exploring experiences from the author's six years in a medium security women's
prison. They are collected around the themes of longing and grief, of despair, of
survival, of joy, and of the complexity of homecoming.
This study measured knowledge and attitudes about genital herpes
and human immunodeficiency virus/acquired immunodeficiency syndrome
(HIV/AIDS) in a sample of future teachers from the College of Education at
Oregon State University. The objectives of the study were 1) to determine if
students possess accurate knowledge about the two diseases; 2)...
This paper examines equitability of critical facilities within resilience planning efforts and how it relates to accessibility and utilization for Latinx community members along the Oregon coast in relation to natural hazards including the Cascadia Subduction Zone. Interviews and focus groups were conducted with emergency management personnel and Latinx coastal...
Pollination is an essential ecosystem service that sustains functioning ecosystems and aids in food production. In response to recent, widespread declines of managed and native bee populations, many land managers have shown interest in developing conservation and restoration plans for enhancing native bee habitat. However, there is a lack of...
The proper way to order knowledge and find truth about the natural world in the eighteenth century lay in one’s ability to correctly learn and employ the quality of reason. While all had the right to seek reason, only a privileged few achieved its proper use, creating an intellectual elite...
Coastal and estuarine flooding and erosion events are usually driven by the cumulative effect of multiple individual processes like waves, streamflow, storm surge, and/or tides. This dissertation focuses on separating the influence of the regional and local-scale geomorphologic and hydrodynamic processes driving variability in the magnitude and impacts of extreme...
Hybridization, polyploidy, and apomixis have made phylogenetic estimation in Rubus challenging. I used target capture to sequence approximately 1000 low copy nuclear loci and the chloroplast genome for 94 accessions representing the genus Rubus and distributed worldwide. Species phylogenies were estimated using two coalescent based methods, ASTRAL-II and SVDQuartets, and...
Vegetation patterns and species distributions are strongly linked to soil moisture regimes, and populations within a species from contrasting climatic regimes could exhibit differences in the degree to which certain functional traits related to establishment are expressed. Tree seedling survival is crucial for forest regeneration, and thus may be a...
I determined the perspectives of Middle Eastern mothers concerning U.S. early childhood schools using qualitative methodologies. The ecological perspective model presented by Bronfenbrenner was the ideal framework for investigating the Middle Eastern children's experiences in this study that considered the importance of the sociocultural contexts of children and their families....
Coral reefs have become vulnerable to climate change, with mass bleaching events, the loss of symbiotic algae (Symbiodiniaceae), increasing in both frequency and severity. As climate change continues to threaten the persistence and existence of coral reefs around the world, the biggest question posed for coral reefs is “can they...
This thesis is the combination of two research publications working towards automating functional modeling. Functional modeling is an underutilized yet critical tool for concept generation and product design. Understanding the difficulty both novice and expert designers have in implementing functional modeling in their design process, this research sets out to...
This phenomenological research study focused on educational change as perceived by 16 Liberal Arts faculty members at a Pacific Northwest community college. Research data were collected through in-depth dialogic interviews and a follow-up dialogue session with six participants. The principal guiding research questions comprised the following: 1) What is the...
With growing populations and consumer demand, there has been a turn to the deep sea to meet our natural resource needs. The deep sea provides a range of benefits to humans—called ecosystem services—including carbon sequestration, fisheries, waste absorption and detoxification, and nutrient cycling, all of which are vital to life...
The Sortase A (SrtA) enzyme is a potential target for a new class of anti-infective drugs
because it is responsible for anchoring virulence factors to the surface of pathogenic,
Gram-positive bacteria such as Staphylococcus aureus. High throughput screening
yielded low molecular weight compounds that inhibit purified SrtA from S. aureus....
In this study, I explore the ideas of doctoral level counselor
education students on spirituality using a postmodern feminist
research paradigm. I have found spirituality to be vital aspect of my
own life and have been pleased to see its importance recognized
within the counseling field.
I analyzed the data...
This paper seeks to answer the question of the effectiveness of urban renewal through a decennial review and analysis of the costs and benefits of the Central Albany Revitalization Area (CARA) in Albany, Oregon. The topic is especially relevant at this time of constraining budgets, as a bright light is...
Wetlands and wet prairies are economically and environmentally valuable ecosystems, but many have been degraded or converted to other uses. As human understanding of wetlands' value has increased, restoration efforts have grown correspondingly. Restoration attempts use a diversity of methods, which often include seeding with native plant species. This thesis...
The root disease fungus Inonotus tomentosus, common in the old
growth boreal forests of British Columbia, poses a threat to the
health of second growth forests established on sites with a previous
history of root disease. Colonized stumps occur in groups of 1 to 6;
the groups are clumped within...
The public health framework of harm reduction was evaluated in one care setting to determine its potential for use in other fields of healthcare. Qualitative interviews were conducted with 11 clients of the HIV Alliance’s needle exchange program. Analysis of client responses revealed three themes: 1) harm reduction methods work...
In the United States, falls are the leading cause of unintentional death with one of every three people 65 years and older falling each year. Falls account for approximately 95% of hip fractures among older adults and falls to the side predominate hip fracture related falls in this population. However,...
Managing invasive species is vital to preserving native species and maintaining the integrity of environments and ecological roles. Rats are one of the most prolific and intrusive invasive species that have successfully cohabitated with humans over centuries as we have expanded and advanced our societies. Thus, rats have historically been...
The combined effects of habitat loss, degradation, and fragmentation pose a serious threat to Earth's biodiversity, imperiling even relatively common species. 'Habitat' is necessarily a species-specific concept, and investigations of bird diversity relationships and subsequent efforts to prioritize conservation areas, are challenged by the difficulty of estimating complex habitat gradients...
Despite the growth of the global refugee population, the proliferation of refugee camps, and the personal experiences of many refugees with violent conflict, there is little systematic understanding of the relationships between conflict events, conflict actors, and refugee communities. Indeed, conflict in and around refugee camps has thus far only...
Understanding the magnitude and longevity of wildfire effects in forested watersheds and subsequent impacts to downstream aquatic ecosystems and communities requires congruent investigation into post-fire aquatic and terrestrial processes. However, results from wildfire studies are often confounded by pre- and post-fire land management actions and based on either hydrologic or...
The purpose of this dissertation is twofold; to review existing literature regarding the process of international student transition to the United States and to specifically increase the understanding of the experiences of a defined international student population through an original grounded theory study. Specifically, the study describes experiences of South...
Annual rates of prespawn mortality (PSM) in adult Chinook salmon (Oncorhynchus tshawytscha) trapped and transported upstream of dams in the Willamette River basin are high (often >40%) and could limit the ability to restore natural populations of spring Chinook salmon if not reduced. Improvements at the U.S. Army Corps of...
The purpose of this dissertation was to contribute to the current understanding about identity development in young adults who experience psychosis and schizophrenia. The article in Chapter 2 Using Authentic Identity Theories to Address the Stigmatization of Young People Who Experience Psychosis and Schizophrenia examined the literature on identity development...
Through the use of daily online surveys, this study investigated the weekly trends associated with college binge drinking. It also investigated the relationship between personality risk factors and binge drinking. Personality risk factors were assessed using the TCI measures of novelty seeking and harm avoidance, and the ATQ measure of...
Cob, similar to adobe, is an earthen building material made of soil, sand, and straw. Although cob was used to build homes in England centuries ago, it has reemerged as a sustainable and relatively inexpensive, alternative building material. A possible solution for housing in impoverished nations, cob needs to be...
Cob, similar to adobe, is an earthen building material made of soil, sand, and straw. Although cob was used to build homes in England centuries ago, it has reemerged as a sustainable and relatively inexpensive, alternative building material. A possible solution for housing in impoverished nations, cob needs to be...
Full Text:
to build homes in England centuries ago, it has reemerged
as a sustainable and relatively
The state of Oregon has two distinct climate types bisected by the crest of the Cascade Mountain range. The western side of the Cascades experiences high levels of precipitation and mild temperatures due to the maritime influence of the Pacific Ocean, while the eastern side lies in the rain shadow...
Cultivated plants are often living artifacts that can aid in evaluation of historic or cultural landscapes. However, a working definition for “culturally significant plant” is currently lacking in the guidance literature for the cultural resource management practitioners. Based on a review of the literature on cultivated plants as indicators of...
Two striking characteristics of human beings are the diversity of resources that we use to sustain our lives and the extent to which we engage in coordinated, collective efforts to obtain and consume these resources. Together, these two characteristics are the foundation of human subsistence patterns. In many remote Alaskan...
Acarapis mites have been present in the United States since 1984 and are presently considered a threat to honey bee populations in North America. They have
been present in Europe since 1921 where infestation rates have now dwindled to a
level that is not considered dangerous. Consequently, accurate information on...
Full Text:
Populations Surrounding Poitiers, France
by
Katherine M. Jillson
A THESIS
submitted to
Acarapis mites have been present in the United States since 1984 and are presently considered a threat to honey bee populations in North America. They have
been present in Europe since 1921 where infestation rates have now dwindled to a
level that is not considered dangerous. Consequently, accurate information on...
Acarapis mites have been present in the United States since 1984 and are presently considered a threat to honey bee populations in North America. They have
been present in Europe since 1921 where infestation rates have now dwindled to a
level that is not considered dangerous. Consequently, accurate information on...
Full Text:
States has a beekeeping industry that yields profits of about 150 million dollars
annually (NASS, 2006
Acarapis mites have been present in the United States since 1984 and are presently considered a threat to honey bee populations in North America. They have
been present in Europe since 1921 where infestation rates have now dwindled to a
level that is not considered dangerous. Consequently, accurate information on...
As the world population continues to grow we must look for smarter and more sustainable ways to feed everyone. Milk is the first food humans consume and is a good source of protein, fat, and carbohydrates. The following studies sought to determine the effect of feeding blackberry pomace as a...
Cob, similar to adobe, is an earthen building material made of soil, sand, and straw. Although cob was used to build homes in England centuries ago, it has reemerged as a sustainable and relatively inexpensive, alternative building material. A possible solution for housing in impoverished nations, cob needs to be...
The capability of Pluronic® F68 to stabilize human recombinant Factor VIII in solution was
assessed using zeta potential measurements. Hemophilia A is a genetic disorder in which the
body is missing Factor VIII (FVIII) from the blood coagulation cascade. The pharmaceutical
industry developed recombinant Factor VIII (rFVIII), the largest cloned...
A novel method for detecting the peptidase activity of clinically relevant peptidases was investigated using solid-contact electrochemical polyion sensors under chronopotentiometric control. Complete instrumental control over ion-extraction was accomplished by incorporating a lipophilic electrolyte into the ion-selective membrane; the sensors had no intrinsic ion-exchange capabilities. The sensors were used to...
The Laser Gravitational Wave Observatory, or LIGO, is built to observe gravitational waves as they propagate through space. Advanced LIGO is extremely sensitive
to movements of the test mass as small as 10⁻²¹ m/√Hz , which allows many signals other
than gravitational waves to be detected by the system. Pressure...
Elie Wiesel’s Night has become a canonical work in the genre of Holocaust literature. This thesis examines the process by which Night achieved this status. An argument will be composed using, as evidence, analysis of Elie Wiesel’s life, the broad history of Holocaust literature, and the complexities surrounding Night’s publication...
To become a competitor for fossil fuels such as coal, solar installations will need to be produced and installed at a price equal to or below grid parity. This price can be approached by either reducing the overall system cost or increasing system efficiency. The focus of this paper is...
Since the 1970s, tendon-transfer surgeries have been routinely performed for a variety of conditions such as stroke, paralysis, spinal atrophy, trauma, and birth defects. The surgery involves rerouting a tendon from a disabled muscle and directly suturing it to a functioning muscle in order to partially restore hand function. This...
Methylthioadenosine (MTA) is a naturally occuring nucleoside formed during
the synthesis of polyamines in mammalian cells. MTA is rapidly catabolised
by MTA phosphorylase (MTAase), eventually yielding methionine and
adenine. MTAase has been shown to be active in all normal cells, but
deficient in some cells and tissues of malignant origin....
Microplastics (<5mm diameter) are present in a considerable number of marine and aquatic species. Understanding which species, the global spatial distribution, and what quantities of microplastics are present is extremely important for understanding the potential impacts they could have on recreationally important organisms and for the assessment of risk. We...
My mother named me after Hollywood icon Katharine Hepburn, but what made a working-class girl grow to love this posh celebrity so much? The obvious answer is that my mother aspired to be posh herself; but lack of money or sophistication were not the only things impacting her potential— there...
The Tam McArthur Rim is a volcanic center located within the Tumalo Volcanic Field (TVF), approximately 25 km west of Bend, OR. The rim comprises of shallowly dipping bedded sequences of intermediate and silicic flows with minor tephra interbedding capped by a rhyodacite dome. Glacial activity has exposed significant portions...