The purpose of this dissertation is to investigate Oregon public high school history teacher perspectives concerning standards-based reform initiatives springing from the No Child Left Behind legislation. The central question addressed in this study is: At what level has Standards-Based Education reform initiatives impacted Oregon high school history instruction and...
Spotted knapweed, Centaurea maculosa Lam. (Compositae) is an extremely
successful introduced weed species in the northwestern United States. Multiple factors
may be responsible for its success, including chemical defense. Two different types of
putative chemical defense agents are the focus of this thesis. The first is a bitter-tasting
sesquiterpene lactone,...
Twentieth century commercial whaling drastically reduced the abundance of great whale populations in the Southern Ocean. Exploitation began on the south Atlantic island of South Georgia, where catch records account for over 175,000 whales killed. Modern whaling within the Southern Ocean depleted populations rapidly, and by 1966, hunting blue whales...
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C. Scott Baker
Twentieth century commercial whaling drastically reduced the abundance of
Commercial whaling during the 20th century drastically reduced many populations of great whales in the Southern Hemisphere. The Antarctic blue whale, for example, is estimated to have been reduced to less than 0.1% of its original abundance based on catch records and population dynamic models. Despite this population bottleneck, several...
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C. Scott Baker
Commercial whaling during the 20th century drastically reduced many
The Walla Walla Basin, in Eastern Oregon and Washington, USA, faces challenges in sustaining an agricultural water supply while maintaining sufficient flow in the Walla Walla River for endangered fish populations. Minimum summer river flow of 0.71 m³/s is required, forcing irrigators to substitute groundwater from a declining aquifer for...
The Walla Walla basin lies in an arid region on the border of Eastern Washington and Oregon. A large portion of the area is devoted to agricultural production, relying on irrigation water diverted from the Walla Walla River and underlying aquifers occurring within Quaternary gravel and Mio-pliocene basalt formations. Heavy...
Nuclear energy enjoyed widespread support in the United States during its initial decades and has seen extensive study as a potential means of combating contemporary energy issues such as climate change and alternative transportation fuels. Despite the potential contribution to solving these challenges, the industry has been largely stagnant since...
Falling Into Place: Relational Perspectives on the US Creative Residency Field is an Environmental Arts & Humanities thesis built around a research project called Creative Residencies and Expanded Senses of Community: Interviews With Artists & Residency Leaders. It’s an extended meditation on arts residencies via research, interviews, and experiential learning,...
The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss,...
Apparel fashion is a daily component of society that transcends generations and cultures.
The purpose of my research was to analyze the garment structure and construction of two
separate but comparable garments in style, function, and content - one from the 1910s
and one from 2015. Using the New Brunswick...
The Antarctic blue whale (Balaenoptera musculus intermedia) was hunted to near extinction between 1904 and 1972, declining from an estimated initial abundance of more than 250,000 to fewer than 400. Here, we describe mtDNA control region diversity and geographic differentiation in the surviving population of the Antarctic blue whale, using...
We examined how the experiences of World War II and Korean War veterans,
including prewar, warzone, and postwar factors, affected PTSD symptoms in later life.
This dissertation consists of two studies. In Study 1, four different hypotheses from a
lifespan approach were examined (King et al., 1996): stress evaporation (only...
Population genetic techniques are now preeminent in differentiating wild populations. Natural resource managers rely on them in their efforts to restore viable populations of fish and wildlife. Overfishing adversely impacted Yelloweye Rockfish (Sebastes ruberrimus) on the U.S. West Coast in the late 20th century. Management actions included shutting down the...
The goal of this dissertation was to improve our understanding of the physiology and life-history of invasive plants and of the mechanisms underlying life-history trade-offs. I compared invasive and noninvasive species of Rubus (blackberry) that grow together in the Pacific Northwest. Three hypotheses were investigated: (1) Invasive Rubus have higher...
The transition to kindergarten can be challenging for many children who do not have the necessary skills to meet the demands of classroom settings such as paying attention, remembering instructions, and demonstrating self-control. Children who lack the necessary behavioral regulation skills to meet the demands in the classroom environment are...
Solute transport models in karst groundwater must consider variable and complex flow regimes. Within fissures less than 2 mm in aperture, during unsaturated flow events, seeping flow may flow as films or under capillary tension as a capillary rivulet. This project focuses on exploring the mass transport characteristics of seeping...
The purpose of this research was to determine if
overland flow and sediment production were different in
logged (on snow, frozen soil, and prescribed skid trails)
and nonlogged sites in a Pinus ponderosa Laws.!
Symohoricaroos albus Laws. community in the foothills of
the Wallowa Mountains in northeastern Oregon. To determine...
High-resolution ship-based observations of a nearly uniform stratocumulus deck in the southeast Pacific during 17 days of the 2008 VOCALS regional experiment elucidate radiation and turbulence in the marine boundary layer (MBL). A new method for prescribing observations-based cloud properties to the Rapid Radiative Transfer Model is presented and applied...
This study explores No Child Left Behind's required timetable for English language learners (ELLs) to reach English language proficiency within five years, as outlined in the Annual Measurable Achievement Outcomes (AMAOs), despite the lack of research evidence to support this as a reasonable expectation. Analysis was conducted on the archived...
Studies on the positive effects of stress, called stress-related growth (SRG), are increasing, and there are a variety of contradictory theoretical models and findings in the literature. This dissertation compared several of these models in two studies, using two waves of data from the Davis Longitudinal Study, a study of...
Live western larch, Larix occidentalis Nutt., a tree species resistant to the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, produces the monoterpene 3-carene in higher concentrations compared to Douglas-fir, the preferred host of D. pseudotsugae (Reed et al. 1986). The inhibitory effects on attraction to aggregation pheromones and toxicity of 3-carene to...
Historically, the difficulty of obtaining pure cultures of abundant marine
microbial plankton has an obstacle to reconstructing the underlying
mechanisms of biogeochemistry in the ocean. While a number of dominant
marine species from the ocean surface have been cultured, the dominant
microbial plankton of the dark ocean proved far more...
Throughout many of the world’s mountain ranges snowpack accumulates during the winter and into the spring, providing a natural reservoir for water. As this reservoir melts, it fills streams and recharges groundwater for over 1 billion people globally. Despite its importance to water resources, our understanding of the storage capacity...
The rare earth elements (REEs) have been established as powerful tracers for a range of physiochemical processes occurring in the natural environment. They also hold significant economic importance as many technological advancements are reliant upon the REEs for their unique magnetic, luminescent, and electrochemical characteristics. In sedimentary settings, understanding the...
A substantial body of evidence has correlated the human body burdens of some polybrominated diphenyl ether (PBDE) flame retardants with cognitive and other behavioral deficits. Adult zebrafish exhibit testable learning and memory, making them an increasingly attractive model for neurotoxicology. Our goal was to develop a rapid throughput means of...
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developmental exposure to polybrominated flame retardants 2
Lisa Truong1, David Mandrell1, Rick Mandrell2
Recognizing the importance of methane hydrate research and the need for a coordinated effort, the United States Congress enacted the Methane Hydrate Research and Development Act of 2000. At the same time, the Ministry of International Trade and Industry in Japan launched a research program to develop plans for a...
Confluence is a newsletter of Oregon Sea Grant promoting discovery, understanding, and resilience for Oregon coastal communities and ecosystems. Articles feature the supported research and events of the program.
Keywords: Steve Strauss, Rick Strachan, Starker Forests, Wheeler Wood Composites Laboratory, Barbara Middleton, Joan Davies, Lisa Mattes, Larry Chapman, Iwan Ho, Jim WIlson, John Sessions, Brian Kramer, Mike Newton, Faye Stewart, Norma Erickson, Paul Adams, Gordan A. and Priscilla E. Duncan, Jim Trappe, Corey Arentz, Wang Zheng-Qi, Loran L. ("Stub")...
For the past several decades, amphibian populations have been decreasing
around the globe at an unprecedented rate. Batrachochytrium dendrobatidis (Bd), the fungal
pathogen that causes chytridiomycosis in amphibians, is contributing to amphibian declines.
Natural and anthropogenic environmental factors are hypothesized to contribute to these
declines by reducing the immunocompetence of...
The U.S. Culture Collection Network was formed in 2012 by a group of culture collection scientists and stakeholders in order to continue the progress established previously through efforts of an ad hoc group. The network is supported by a Research Coordination Network grant from the U.S. National Science Foundation (NSF)...
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Alvarez, Rick Bennett, Deepak Bokati, Kyria Boundy-Mills, Daniel Brown, Carolee T. Bull,
Michael Coffey
The OSU Government Relations Office provides periodic updates that describe events in Washington, DC and Salem. These updates include insights on how budget and policy decisions at the state and federal level will affect OSU and are issued once or twice a month, depending on the level of activities in...
The OSU Government Relations Office provides periodic updates that describe events in Washington, DC and Salem. These updates include insights on how budget and policy decisions at the state and federal level will affect OSU and are issued once or twice a month, depending on the level of activities in...
The OSU Government Relations Office provides periodic updates that describe events in Washington, DC and Salem. These updates include insights on how budget and policy decisions at the state and federal level will affect OSU and are issued once or twice a month, depending on the level of activities in...
Published January 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Oregon’s Protection from Fire Program is the largest program within the Oregon Department of Forestry (ODF). The program provides wildfire protection on about 15.8 million acres of mostly privately-owned Oregon forestland. Private and state interests in protecting Oregon forests from fire have been intertwined since the early 1900s when ODF...
Oregon’s Protection from Fire Program is among the premier wildfire protection programs in the western U.S. and the largest program within the Oregon Department of Forestry (ODF). The program provides wildfire protection on about 15.8 million acres of mostly privately-owned Oregon forestland. Private and state interests in protecting Oregon forests...
Published June 1999. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Sequential aerial photography was used to identify effects of hiking trails
on the spatial distribution of subalpine fir (Abies lasiocarpa) habitat at alpine treeline.
Vegetation change over a 46 year period was compared along trails relative to areas
without trails, at five study sites in the McDonald Creek drainage of...
The purpose of the study is to gauge the scope of bioenergy opportunities by identifying and profiling bioenergy projects and potential projects in Oregon, and learning directly from developers the key challenges and issues this nascent sector faces. Bioenergy projects are defined as projects that would produce biofuels (ethanol and...
Published July 1975. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Gene transfer via interspecific hybridization within Phaseolus has
been limited by abnormal hybrid development and the rapid loss of
hybridity in subsequent generations. The most advanced embryo
development occurs in P. vulgaris x P. coccineus where mature seeds
form. However, the reciprocal cross still results in abnormal embryos
unable to...
This is the second of two new reports sponsored by a consortium of public groups and focusing on the Western Pond Turtle (Emys marmorata marmorata). The first report (Adamus 2003) provided an updated perspective on the distribution of the species in the Willamette River Basin, based on new field surveys,...
Utilizing a phase equilibria based trace element isotope model for low pressure igneous differentiation, it is now possible to update the methods presently being used to evaluate the effect of assimilation and fractional crystallization (AFC) processes. The results of the calculations presented here indicate that bulk partition coefficients (D) for...
Published August 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This thesis examines perceptions of cooperation among small to medium sized enterprises (SME) in western Oregon's forest products industry. Recent changes in the industry, such as corporate consolidation, global marketing, and government regulations have created an environment in which many SMEs find it difficult to stay competitive. Cooperation among SMEs...
Purebred Yorkshire gilts with weights ranging from 70 to 105
kilograms were moved from a total-confinement rearing unit to a
total-confinement brood stock unit where approximately ten gilts
per pen were mixed to provide new penmates. Each gilt was thus
exposed to an unfamiliar environment and to foreign penmates along...
A taxonomic study of the genus Ophionectria Saccardo is presented.
The genus is described and the only remaining species, the type species,
Ophionectria trichospora, is described and figured. Ophionectria
trichospora is compared with Nectria haematococca to define relationships
between the two genera.
All other species formerly placed in Ophionectria are...
PRC2 (Polycomb Repressive Complex 2) mediated gene silencing plays an important role in cell differentiation, stem cell plasticity, and tumor suppression. In fungi, it is also involved in pathogenicity. The catalytic subunit, KMT6, trimethylates lysine 27 on histone h3 (H3K27me3) at loci targeted for silencing. In animals, PRC1 and PRC2...
Published September 1994. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Animals can be naturally exposed simultaneously to multiple stressors. These include habitat changes, contaminants, diseases, invasive species, parasitism, and predation. Exposure to various combinations of biotic and abiotic stressors may induce behavioral changes that affect the way an individual interacts within its environment.Like other groups of organisms, amphibians are exposed...
A life course perspective provide a meta-theoretical framework to understand human development. This perspective is characterized by studying the changing lives within the changing environment (George, 2004). Building upon the literature in the psychosocial paradigm and ecological models, Manuscript 1 discusses the uniqueness and the practical importance of a life...
There are many reasons for building an alliance among agencies and citizens in forest and rangeland communities. In the big picture, the purpose is primarily to reach decisions that are objectively better. Essentially, the quality of decisions is improved by a multi-agency effort that includes a role for citizens and...
Fire is an important disturbance mechanism in big sagebrush (Artemisia
tridentata) communities, yet little is known about wildlife population dynamics during
post-fire habitat succession. I estimated the abundance of small mammals and birds in
relation to fire history in mountain big sagebrush (A.t. spp. vaseyana) communities on the
Sheldon National...
Explosively erupting volcanoes and megathrust earthquakes (Mw 8+ magnitude) occur at subduction zones and adjacent volcanic arcs. Volcanic eruptions are observed occurring close in time to megathrust earthquakes in the historical record from at least the 18th century CE to present in locations globally, including Japan in 1707 CE (Chesley...
Published September 1995. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog