The management of existing forest road systems is an issue of growing importance and public debate. Roads can alter the hydrologic processes in a watershed especially at stream crossing culverts where road ditches channel runoff directly into the stream. The objective of this study was to determine how surface runoff...
Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids.
The goal of this work was to investigate turbid runoff during wet-weather...
Forests in the Blue Mountains region of eastern Oregon and Washington are facing a large-scale forest health crisis. Poor forest conditions have greatly increased the risk of catastrophic wildfire. Resource managers in the Wallowa-Whitman, Umatilla, and Malheur National Forests are utilizing prescribed fire and mechanized thinning treatments to reduce hazardous...
Wildfire impacts have increased in recent years. The management response outlined by recent policy initiatives (e.g., the National Fire Plan, Healthy Forests Restoration Act) emphasizes the use of prescribed fire and mechanized thinning to reduce the risk of future fire events. These policies also call for an unprecedented level of...
Green bean flavor has been studied since the 1960’s to better understand Blue Lake flavor in processed green beans in Oregon. Research by Stevens and colleagues showed that Blue Lake flavor could be reconstituted in a bland bean by adding 0.4ppm of 1-octen-3-ol and 1.6ppm of 3-hexen-1-ol. These two volatile...
The Southern Oregon Forest Restoration Collaborative (SOFRC), the Model Forest Policy Program (MFPP) and the Rogue River-Siskiyou Forest Service (RRSFS) have a shared vision to enhance the resiliency of our communities and forests. In 2012, the Collaborative took the leadership role to engage in the Climate Solution’s University (CSU) Plan...
Brown marmorated stink bug (BMSB), (Halyomorpha halys, Hemiptera: Pentatomidae) is an invasive species that damages numerous agricultural crops including grapes. Related damage include lower berry weight with increased exposure and cracked berries as a result of BMSB feeding activity. The insect is currently detected in 43 US states including Oregon,...
This research was designed to evaluate the Fatty Acid Signature (FAS) technique as a non-lethal alternative to more traditional, and sometimes destructive, methods of studying the diet composition of piscivorous birds. Specifically we tested the technique with Caspian terns (Hydroprogne caspia) which currently nest in large numbers in the Columbia...
This study of Oregon secondary school teachers was designed
to find why individuals had chosen this particular career, what
they think of their positions, what time of their lives they chose
teaching as a career, and what their career plans are for the
future. The respondents were full-time Oregon secondary...
The purpose of this study was to locate and analyze experimental
studies of teacher training that tested elements of Bandura's
social learning theory. Bandura's theory emphasizes the role of
modeling in the acquisition of new modes of interpersonal behavior,
and it also provides for the integration of practice and feedback...
The individual through earliest recorded history reveals contradictory views of the
human life-span. "Am I a free and unique individual, able to make choices and decide my
own destiny?, or, "Am I only a victim of circumstance, a speck of dust in the universe's
whirlwind of fate?"
Each view is...
School counseling site supervisors provide a critical contribution to the professional
development of master's program school counseling interns; however, their training
needs remain unidentified in the literature. To that end, the purpose of this quantitative
study was to explore the training needs of site supervisors of master's program school
counseling...
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________________________________________________________________________
Dr. Dale-Elizabeth Pehrsson
School counseling site supervisors provide a critical
Like other species interactions in ecological systems, host-pathogen interactions are influenced by environmental factors, landscape characteristics and the broader community context. My thesis explores the potential influences of food-web interactions (Chapter 2), climate change (Chapter 3), landscape structure and host movement patterns (Chapter 4), and the combined influences of local...
This thesis uses both feminist and new historic theories to argue that the women's romance novels The Last September (1929) by Elizabeth Bowen and The Country Girl's Trilogy (1960, 1962, 1964) by Edna O'Brien are tragic bildungsroman that subvert and challenge the Irish patriarchal marriage expectations of their respective time...
Greenwashing is a relatively novel, diversely interpreted, and under-researched social phenomenon. Therefore, studying greenwashing concepts, methodological yardsticks, and the dynamic behind its pervasiveness provides an excellent opportunity to improve our understanding of it, refine our detection tools, and illuminate its influencing factors and impacts on society. This study aims to:...
Most carbon (C) transformations in soil are carried out by a diverse and complex soil microbial community. The size and composition of the soil microbial community is determined by poorly understood interactions between the quantity and chemical composition of plant inputs, as well as climate. Given the metabolic diversity of...
Serum samples were collected between 24 and 48 h of age
from 408 Hereford calves of a selection experiment and from 200
Angus, Hereford and Red Poll calves of another experimental
population (Germ Plasm Utilization project). Concentrations of
Immunoglobulin G₁ (IgG₁) were determined by single radial
immunodiffusion. Breed or selection...
A team of three people at the Republic of Palau Division of Marine Resources interviewed 54 women in seven of Palau's 16 states in a three-month study to determine the role of women in nearshore fisheries. The interviews, which generally lasted over an hour each, found that most of the...
Three sets of blood samples were taken from 532 beef calves of two populations at 24 to 48 h after birth, at an average age of 164 d (at time of vaccination for infectious bovine rhinotracheitis virus or IBRV) and at an average age of 224 d (60 d postvaccination)....
The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Although the potato (Solanum tuberosum L.) is a global crop, few growing regions rival the high yields of the Columbia Basin of Eastern Oregon and Washington. Two research projects were conducted in Hermiston, OR to contribute to best management practices for the region. The first project evaluated the efficacy of...
Changes in the type and amount of plant inputs can occur gradually, as with succession, or rapidly, as with harvesting or wildfire. With global change it is anticipated that both gradual and immediate scenarios will occur at increasing frequency. Changes in vegetation inputs alter the quality and quantity of soil...
The Mien are recent United States immigrants from Laos. They left
Southeast Asia at a time of great political upheaval. Because of their
close ties with United States governmental operations during the Southeast
Asian war, conditions for Mien in Laos made flight imperative as
Pathet Lao forces now control the...
Purpose: The basic purpose of this study was to evaluate theeffectiveness of paraprofessional workers trained to work as guidanceassistants to professional counselors in elementary and secondaryschools. The study included an identification of the appropriate roleof guidance assistants, counselors, and administrators in their relationshipwith one another in a team setting. Role...
Many conditions affecting hydrogen (H₂) production by the cyanobacterium, Synechocystis sp. PCC 6803, were optimized to yield maximum H₂ accumulation. Biological H₂ production from photosynthetic species is a promising form of renewable energy since an abundant supply of sunlight hits the Earth every day, and photosynthetic bacteria can harness this...
After a 40-year absence from Oregon’s landscape, expanding gray wolf (Canis lupus) populations are reestablishing elements of interspecific competition with sympatric large carnivores, like cougars (Puma concolor). This presents new challenges for management of large carnivores and their ungulate prey populations (e.g., elk, Cervus canadensis nelsoni; mule deer, Odocoileus hemionus)...
Women are economically disadvantaged in most U.S. labor markets, demonstrated by a persistent gender wage gap. The relative wage discrepancy can be understood as a result of labor market conditions, human capital investments, and gender discrimination. To determine if the wage gap could be decreased, I use classical regression modeling...
This research explores and aligns a postmodern method in line with a theoretical lens of "strategic political queer/feminism" to understand the construction and positioning of the issue/ problem of same-sex marriage. The method takes shape through a theoretical framework that leads to a political maneuver opening access to the rights...
Soil properties may hold the key to improved predictions of soils during digital soil mapping (DSM), which has developed with a focus on environmental factors external to soil. The spatial variability in soil properties was modeled across Malheur National Forest in eastern Oregon as an approach to improve DSM. The...
Fusion reactions with radioactive neutron-rich projectiles have been the subject of much recent theoretical and experimental interest. Predictions of enhancement of the cross section due to the use of a neutron-rich projectile may have implications for synthesis of heavy nuclei. In this work, the fusion-fission excitation functions were measured for...
Franz Boas collected anthropometric data on approximately 15,000 people from over 200 Native American tribal groups between 1888 and 1902. Twelve basic measurements were taken: standing height, shoulder height, height to digit III, arm span, sitting height, shoulder width, head length and width, face height and breadth, and nose height...
During COVID-19 case investigations, demographic data are collected to better understand the epidemiology of the disease. Demographic data includes Race, Ethnicity, Language and Disability (REALD) and Sexual Orientation and Gender Identity (SOGI) questions. This is of particular interest as collection of granular data of REALD is required by House Bill...
With trust in the media reaching an all-time low among Americans, I wanted to explore what prompted this shift in attitude. This thesis analyzes how Americans’ perspectives on the credibility of modern-day media and the value they place on the freedom of the press are heavily influenced by their preferred...
Adequate access to financial markets is crucial for healthy communities. Some communities within the United States have historically been excluded from financial markets due to factors of geographic isolation or racial discrimination. The mechanism behind households and individuals lacking access to financial products and services is due to credit rationing...
The California Current Ecosystem (CCE) is a dynamic marine ecosystem from which many socioeconomically important fisheries species are harvested. In this thesis, a genotyping-by-sequencing (GBS) approach was used to examine genomic variation in an early life stage of the Dungeness crab (Cancer magister), which constitutes the most valuable single-species commercial...
Several aspects of the potent inhibition of bovine plasma amine
oxidase (PAO) by hydrazines were investigated by kinetic and preparative
means. The inhibition was classified as pseudo-irreversible
by the method of Ackerman and Potter (Proc. Soc. Exptl. Biol. Med.
72, 1 (1949), and was found to exhibit Zone B kinetic...
This dissertation consists of four studies of Populus and Eucalyptus biotechnology and genomic science: 1) induction of floral sterility by tapetal expression of the ribonuclease Barnase in Populus; 2) CRISPR Cas9-mediated gene editing targeting LEAFY (LFY) and AGAMOUS (AG) homologs in Populus; 3) induction of floral sterility by CRISPR Cas9...
Using a quasi-experimental design, 118 Latina girls, ages 13-18, viewed five color photographs of White women. Girls viewed either images of sexualized women or images of non-sexualized women. After viewing the images, girls were asked to complete the sentence stem, “I am…” 20 times. Thirty percent of girls spontaneously described...
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2013
Deborah Schooler
Gallaudet University, Washington DC, United States
Elizabeth
It has been established that intercollegiate sport is an important social institution for student athletes of color in the United States (Coakley, 2012). White intercollegiate coaches have a prominent influence on the academic, athletic, social and emotional development of student athletes and therefore must be tuned into variation in cultural...
A majority of human caloric intake is in the form of complex carbohydrates, which have been assumed to be tasteless. However, there is considerable evidence from rat and human studies to support the existence of a secondary carbohydrate taste receptor that detects glucose polymers. Psychophysical studies in our lab suggest...
Constraining the magma evolution and dynamics that lead to the eruption of large volume continental arc systems is fundamental to our understanding of continental crust formation. An investigation into the magmagenesis that results in the formation of the Central Volcanic Zone (CVZ) in the Andes of South America, situated atop...
The trophic habits, size and condition of yearling Chinook salmon (Oncorhynchus tshawytscha) caught early in their marine residence were examined during 19 survey years (1981–1985; 1998–2011). Juvenile salmon consumed distinct highly piscivorous diets in cold and warm ocean regimes with major differences between ocean regimes driven by changes in consumption...
The California Current Ecosystem (CCE) is a dynamic marine ecosystem from which many socioeconomically important fisheries species are harvested. Here, a genotyping-by-sequencing (GBS) approach was used to examine genomic variation in an early life stage (megalopae) of the Dungeness crab (Cancer magister), which constitutes the most valuable single-species commercial fishery...
The California Current Ecosystem (CCE) is a dynamic marine ecosystem from which many socioeconomically important fisheries species are harvested. Here, a genotyping- by-sequencing (GBS) approach was used to examine genomic variation in an early life stage (megalopae) of the Dungeness crab (Cancer magister), which constitutes the most valuable single-species commercial...
Dynamic marine environments can shape complex spatial and temporal patterns in the population connectivity of marine species, and this is often exemplified in species with long larval phases. Here, we used a genotyping-by-sequencing (GBS) approach to examine fine-scale spatial and temporal genomic variation among Dungeness crab Cancer magister larval recruits...
A study consisting of three parts was undertaken to investigate how variation in species interactions, population genetic structure, epidemiological parameters, and plant breeding system may influence the ecology and biological control of an apomictic invasive plant, Chondrilla juncea (Asteraceae). Interactions between natural enemy species may modify their net effect on...
While exercise can be prescribed for improving cardiovascular and muscle health, no prescription exists for increasing bone mass. Because bone deformation rate has been identified as an important variable related to osteogenesis, estimates of skeletal loading during human activities likely characterize the associated osteogenic stimulus. However, estimates of body segment...
Successfully shifting to a more piscivorous diet may be an important factor in the growth and survival of juvenile coho salmon Oncorhynchus kisutch and Chinook salmon O. tshawytscha during their first summer in the northern California Current. Nonmetric multidimensional scaling and cluster analysis of diets by size showed several distinct...
The diel feeding periodicity of juvenile Chinook salmon Oncorhynchus tshawytscha was determined from stomachs collected in coastal waters off Oregon in 2000 and 2003. Juvenile Chinook salmon exhibited a diurnal feeding pattern with morning and evening feeding periods. There were differences in the duration and magnitude of the dawn and...
The composition of the continental crust is closely tied to subduction zone magmatism. Elevated oxygen fugacity (fO₂) plays a central role in fostering crystallization of oxide minerals and thereby aids in generating the calc-alkaline trend of iron depletion that characterizes the continents. Along continental margins, arc magmas erupt through continental...
Developmental bisphenol A (BPA) exposure is associated with adverse behavioral
effects, although underlying modes of action remain unclear. Because BPA is a
suspected xenoestrogen, the objective was to identify sex-based changes in adult
zebrafish social behavior developmentally exposed to BPA (0.0, 0.1 or 1 μM) or one of
two control...
The 158-year-old Commanding Officer's House at Fort Hoskins is one of only two such structures in Oregon representing the pre-Civil War era on the Western Frontier. From 1856-1861, it embodies a link in history between the prevailing ideology of western expansion and replication of Eastern cultural values into the frontier...
The composition of the continental crust is closely tied to subduction zone magmatism. Elevated oxygen fugacity (fO₂) plays a central role in fostering crystallization of oxide minerals and thereby aids in generating the calc-alkaline trend of iron depletion that characterizes the continents. Along continental margins, arc magmas erupt through continental...
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Stephanie B. Grocke a,b,∗, Elizabeth Cottrell a, Shanaka de Silva b, Katherine A. Kelley c
a Smithsonian
Interannual variability in salmon (Oncorhynchus spp.) production in the northeast Pacific is understood to be driven by oceanographic variability and bottom-up processes affecting prey availability to juvenile salmon. Scyphozoan jellyfish have an important role in shaping the pathways of energy flow through pelagic food webs. While jellyfish obtain high production...
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Pacific Northwest salmon production
James J. Ruzicka,1,† Elizabeth A. Daly,1 and Richard D. Brodeur2
Diets of juvenile coho Oncorhynchus kisutch and Chinook O. tshawytscha salmon
are made up primarily of winter-spawning fish taxa in the late-larval and early juvenile stages that
are undersampled in plankton and larger trawl nets. Although we have no direct measure of the
availability of fish prey important to juvenile...
Historically, brewers have used dry-hopping (a cold extraction of nonvolatile and volatile chemicals from hops into fermenting or finished beer) to increase the microbial stability and shelf life of their beer. As hoppy beer styles have gained in popularity over the last decade (2007-2017), the objective of dry-hopping has turned...
Infectious diseases are a growing concern for both humans and wildlife. The negative effects of infectious disease have been exemplified by the recent global amphibian population declines associated with disease outbreaks. Although multiple pathogens and factors play a role in these declines, the aquatic fungal pathogen, Batrachochytrium dendrobatidis (Bd), has...
Relative to extensive research on the freshwater stages of steelhead Oncorhynchus mykiss life history, little is known about the species’ estuarine and early marine phases despite the decline of numerous populations, including several from the Columbia River. Comparisons of the distribution, diet, and growth of juvenile steelhead collected during surveys...
Most modeling and statistical approaches encourage simplicity, yet ecological processes are often complex, as they are influenced by numerous dynamic environmental and biological factors. Pacific salmon abundance has been highly variable over the last few decades and most forecasting models have proven inadequate, primarily because of a lack of understanding...
Ecological interactions between natural and
hatchery juvenile salmon during their early marine
residence, a time of high mortality, have received little
attention. These interactions may negatively influence
survival and hamper the ability of natural populations to
recover. We examined the spatial distributions and size
differences of both marked (hatchery) and...
Pseudoperonospora cubensis is an obligate pathogen and
causative agent of cucurbit downy mildew. To help advance
our understanding of the pathogenicity of P. cubensis, we
used RNA-Seq to improve the quality of its reference
genome sequence. We also characterized the RNA-Seq
dataset to inventory transcript isoforms and infer alternative
splicing...
This research investigates the direct and downstream impacts of clearcut harvest units on stream temperature as a part of the Hinkle Creek Paired Watershed Study. The Hinkle Creek watershed is located in the foothills of the Cascade Mountains about 30 kilometers northeast of Roseburg, Oregon, is privately owned, and supports...
The purpose of this study was to determine the relationships
among leadership style (telling, selling, participating and
delegating), personality preferences (Extravert/Introvert,
Sensing/Intuitive, Feeling/Thinking, Judging/Perceiving and
effectiveness as a consultant teacher. The sample consisted of
thirty-one consultant teachers from Oregon: twenty from the
Portland School District, five from the Gresham School...
Little is known about viruses associated with Antarctic animals, although they are probably
widespread. We recovered a novel polyomavirus from Adélie penguin (Pygoscelis adeliae) faecal
matter sampled in a subcolony at Cape Royds, Ross Island, Antarctica. The 4988 nt Adélie
penguin polyomavirus (AdPyV) has a typical polyomavirus genome organization with...
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(Pygoscelis adeliae)
Arvind Varsani,1,2,3 Elizabeth L. Porzig,4 Scott Jennings,5
Simona Kraberger,1 Kata
With the ongoing crisis of biodiversity loss and limited resources for conservation, the concept of biodiversity hotspots has been useful in determining conservation priority areas. However, there has been limited research into how temporal variability in biodiversity may influence conservation area prioritization. To address this information gap, we present an...
While there is a persistent inverse relationship between latitude and species diversity across many taxa and ecosystems, deviations from this norm offer an opportunity to understand the conditions that contribute to large-scale diversity patterns. Marine systems, in particular, provide such an opportunity, as marine diversity does not always follow a...
The most diverse marine ecosystems, coral reefs, depend upon a functional symbiosis between a cnidarian animal host (the coral) and intracellular photosynthetic dinoflagellate algae. The molecular and cellular mechanisms underlying this endosymbiosis are not well understood, in part because of the difficulties of experimental work with corals. The small sea...
The Plant Ontology (PO;http://www.plantontology.org/" is a publicly available, collaborative effort to develop and maintain a controlled, structured vocabulary ('ontology') of terms to describe plant anatomy, morphology and the stages of plant development. The goals of the PO are to link (annotate) gene expression and phenotype data to plant structures and...
The primary purpose of this study was to investigate the relationships and the differences between the self-concept and the coping
behavior of two selected groups of graduate students namely, foreign-born
Asians and American Caucasians who were enrolled in graduate
school of Oregon State University during the 1981-82 academic year.
The...
The rapid disruption of tropical forests probably imperils global biodiversity more than any other contemporary phenomenon¹⁻³. With deforestation advancing quickly, protected areas are increasingly becoming final refuges for threatened species and natural ecosystem processes. However, many protected areas in the tropics are themselves vulnerable to human encroachment and other environmental...
Potentially carcinogenic compounds may cause cancer through direct DNA damage or through indirect cellular or physiological effects. To study possible carcinogens, the fields of endocrinology, genetics, epigenetics, medicine, environmental health, toxicology, pharmacology and oncology must be considered. Disruptive chemicals may also contribute to multiple stages of tumor development through effects...
We provide here a comparative genome analysis of ten strains within the Pseudomonas fluorescens group including seven new genomic sequences. These strains exhibit a diverse spectrum of traits involved in biological control and other multitrophic interactions with plants, microbes, and insects. Multilocus sequence analysis placed the strains in three sub-clades,...
We provide here a comparative genome analysis of ten strains within the Pseudomonas fluorescens group including seven new genomic sequences. These strains exhibit a diverse spectrum of traits involved in biological control and other multitrophic interactions with plants, microbes, and insects. Multilocus sequence analysis placed the strains in three sub-clades,...
The purpose of this review is to stimulate new ideas regarding low-dose environmental mixtures and carcinogens and their potential to promote invasion and metastasis. Whereas a number of chapters in this review are devoted to the role of lowdose environmental mixtures and carcinogens in the promotion of invasion and metastasis...
Consistent with its charge under Oregon House Bill 3543, the Oregon Climate Change Research Institute (OCCRI) conducts a biennial assessment of the state of climate change science, including biological, physical, and social science, as it relates to Oregon and the likely effects of climate change on Oregon. This fifth Oregon...
.......................................................................................................................................... Elizabeth Ramsey
DAHLIAS
The impact of forest roads on the hydrology of forested watersheds has long been studied. While forest roads have been reported to alter storm runoff at the road segment scale, the potential for changes to be detectable at the small watershed scale has been debated. The purpose of this study...
DIRECTOR’S NOTES:
No Exit is a timeless tale set circa World War II. Written in 1944 during the German occupation of France, this existentialist drama imagines what happens after death --- and the punishment that might be waiting for the damned. There are no torture devices in this version of...
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Elizabeth Helman - Director/Actor
Barbara Mason - Designer
Marion O. Rossi - Actor/Director
Davey
Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers attributable to toxic environmental exposures is between 7% and 19%. To explore the hypothesis that...
Focus on Forestry is published by Oregon State University's College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
Unpaved roads are a critical form of infrastructure in forested landscapes but also a potential source of fine sediment that can degrade sensitive ecosystems nearby. Improved management of aggregate road surfacing can reduce sediment generation, lengthen its useful life span, reduce maintenance costs, and more importantly, mitigate the impacts of...
This index provides access to infonnation about women in 102 books and journals. The information contained in each entry is only as good as the original and the quality varies considerably. Much of this infonnation has not before been easily accesible in this form. My hope is that this index...
This study is a comparison of the extent of acceptance by peers
in first-born children and last-born children.
The following hypothesis was tested: There is no difference in
peer acceptance of the first-born child as compared to the last-born
child.
The subjects were students between the ages of 11 years...
In July of 2001, the Environmental Protection Agency (EPA)
activated the Total Maximum Daily Load (TMDLs) provisions of the
Clean Water Act. As the first river in Oregon to implement TMDL
regulations, people and agencies in the Tualatin basin face many
challenges. Non-point source pollution affects water quality in the...
The goal of this study was to advance methods for assessment of forest road hydrologic
response and sediment yield at a catchment scale. This research looked at the effect of
soil depth estimation on the Distributive Hydrology Soil Vegetation Model (DHSVM),
assessed the uncertainty and accuracy of hydrologic modeling of...
Includes 1922 Summer School Graduates.
In the following pages the information, so far as it has been possible to obtain it, is given in the following order for each alumnus: Name, year in which the degree was conferred, degree, course, present occupation, and present mailing address.
Focus on Forestry is published by Oregon State University's College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.