A multitude of biotic and physical factors, many of them unique to riparian environments, interacted to form an extremely complex ecosystem along Catherine Creek in the Wallowa Mountains. A total of 258 stands of vegetation representing 60 communities was identified. At least 20 species of mammals and 81 species of...
Conventional wastewater treatment facilities using activated sludge, secondary clarifiers, and chlorine disinfection comprise a large portion of urban wastewater treatment practices in the United States. While highly adept at removing chemical, physical, and numerous biological contaminants, these treatment methods are ineffective at removing contaminants of emerging concern, such as antibiotics...
Water is one of the world’s most valued commodities, and antibiotic-resistant bacteria are one of the emerging pollutants of concern. Stormwater runoff picks up pollutants such as bacteria as it runs over impervious surfaces and into waterbodies. This project tested the use of biochar columns as an effective and inexpensive...
Published September 1998. 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
Published September 1998. 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
The purpose of this study was to apply the Combined Index (Con, a hazard screening tool, developed by Dr. Debra Forman of EPA Region III Office of Air Radiation and Toxics Division, to the 1994 and 1995 Oregon Toxic Chemical Release Inventory (TRI) for pollution prevention and facility targeting analysis....
This paper presents a brief history of social dance at Oregon State University (OSU) and discusses its key elements and context. Social dance has been part of campus life at OSU since the university was founded. Initially, dance was a social activity and means to interact with others, but as...
In 1990, the Clean Air Act (CAA) Amendments authorized the regulation of 188 hazardous air pollutants (HAP). Exposure to HAPs at sufficient concentrations and durations can increase both cancer and serious adverse non-carcinogenic effects. The purpose of this study was to conduct a human health risk assessment using data of...
The purpose of this study was to determine the in-service training needs in selected subject matter areas as perceived by community nutrition educators in Kiambu District in Kenya. The study also sought to determine if there were significant relationships between selected demographic characteristics and the respondents' perceptions regarding in-service training...
The objective of this study was to evaluate the effect of commodity promotion activities on the United States' hazelnut farmer's economic welfare. Commodity promotion activities, such as generic advertising and research, are the responsibilities of government mandated commodity commissions, such as the Hazelnut Marketing Board (HMB). The HMB is a...
A regime-switching model for market integration study is extended to incorporate dynamic trade flow information and risk perceptions based on an expected utility framework. An application of the extended model to the US-China soybean markets analysis shows that: One, the positive arbitrage rent uncounted-for in the extended model has been...
The Mt. Scott watershed in northern Clackamas County, Oregon is an urban watershed that lies inside the Portland metropolitan urban growth boundary. Urbanization of the watershed began in the early 1970s and has recently accelerated. A landscape level analysis of the urbanization process was combined with the results of a...
The State of Oregon possesses a tumultuous relationship with the Earned Income Tax Credit (EITC) and currently experiences one of the lowest participation rates in the country despite attempting several policy reforms. The State of Washington has exhibited a comparatively similar relationship. However, it has adopted a distinctive policy supplementation...
In 1996, China started to increase its annual soybean imports at a tremendously high speed. It has become one of the most important soybean import markets for the world's largest soybean producers: the United States, Brazil and Argentina. In the meantime, the Dalian Commodity Exchange (DCE), a Chinese soybean futures...
Biohazardous waste refers to wastes that are potentially infectious to humans, as well as wastes from animal or plant research that could be potentially infectious to these organisms, or could alter their genetic selection process. Research resulting in generation of biohazardous waste is typically conducted at large, research-based universities. The...
This study was designed to determine whether individual
students at the eleventh grade level who were graded on a pass-fail
basis in United States History would show any difference in academic
achievement from those of a similar group marked by the traditional
ABCD-F letter-grade method. In addition, the study was...
Working conditions in the international garment industry have long been a concern and a process to assess and certify fair trade practices was developed as a means by which to improve those conditions. Standards for fair trade apparel include safe working conditions, fair wages, compliance with laws, and reduced environmental...
Asthma prevalence in children under age 18 has risen steadily in the U.S. since the mid-1970s. Most researchers attribute this increase to air pollutants, socioeconomic status or urban residence. This study examined asthma prevalence in Lane County, Oregon, using children's asthma hospital discharges (1990-1995), and data from 10 of 16...
In 1994, the US Army Corps of Engineers (USACE) implemented a new audit tool developed by the US Department of Defense (DOD) called "The Environmental Assessment and Management Guide" (TEAM Guide). The TEAM Guide uses an extensive menu of checklists to determine compliance. In November 1994, the USACE Portland District...
Two research studies at the U.S. Department of Energy's Hanford Site and Rocky Flats Environmental Technology Site (RFETS) explore the quantitative relationship between surface contamination, airborne radioactivity, worker intakes, and subsequent dose. In the first study, resuspension factors are developed and evaluated at the U.S. Department of Energy's (U.S. DOE)...
In 1992, hundreds of buildings in Taiwan were discovered to have ⁶⁰Co contamination in the structural rebar. The contamination resulted from improper handling of ⁶⁰Co contaminated scrap metal in 1982 and 1983 that was subsequently recycled and used throughout Taiwan. One example was the Hsin-hsin Kindergarten (HHK) school which had...
With congressional passage of the BEACH Act in October of 2000, Coastal and Great Lakes states were mandated to assess coastal recreation waters for the application of ambient water quality standards. This research encompasses two components involved in applying the BEACH Act statues to Oregon. The first component was to...
An almost torus manifold $M$ is a closed $(2n+1)$-dimensional orientable Riemannian manifold with an effective, isometric $n$-torus action such that the fixed point set $M^T$ is non-empty. Almost torus manifolds are analogues of torus manifolds in odd dimension and share many of the characteristics of torus manifolds. For example, both...
This research examines whether alternative methods of export commodity promotion and market development, such as technical training and trade servicing activities, have been successful in increasing the demand for grass seed produced in Oregon in international markets. A single equation linear input demand model and a linear model adjusted to...
This study explores the influence that the sustainability of hotels has on the choice of hotels. Because of recent concern about global warming and reducing energy consumption, many designers are planning sustainable buildings. But often attractiveness is sacrificed for the goal of making a building sustain in its environment. The...
Woody riparian vegetation is an essential component of riparian ecosystems, responsible in part for the maintenance of functional ecological processes. The plant community composition and distribution provide an indication of the underlying mosaic of environmental attributes and processes. Restoration and management of riparian communities have been hindered by the lack...
Pregnant people have been criminalized for their pregnancy outcomes even after Roe v Wade established some rights to reproductive autonomy. Fetal personhood theory, changing societal conceptions of motherhood, and existing racial and class-based biases have fueled an increasing and complex patchwork of punitive policies and interpretations. This study analyzed 35...
Period poverty is the inability to access menstrual products and more generally the lack of knowledge surrounding menstruation. About one in ten undergraduates suffer from period poverty, a number that almost doubles for first-generation students (Haneman, 2021). Previous research and current legislation aimed at addressing period poverty largely revolve around...
The National Ecological Observatory Network (NEON) provides open access data products including sub-daily precipitation amounts and biweekly stable water isotope concentrations at sites across the United States. Stable water isotope (ẟ2H, ẟ18O) concentrations are often used in hydrometeorological studies and models, however the relatively infrequent biweekly sampling intervals of NEON...
The purpose of this investigation is to explore gender role attitudes among Thai
college students and to determine whether differences in gender role attitudes among
Thai college students are related to the sex of students, college major and family
structure. To investigate this problem a Gender Role Attitude Inventory is...
Using robotics in education allows students to become familiar with multiple topics in science, technology, engineering, and mathematics (STEM). With the use of robotic educational tools in the 8th – 12th grade classrooms, such as Sphero, Anki Cozmo, and Lego Mindstorms, few devices allow students to build the robots’ electrical...
Two methods of radiation dose assessment were evaluated for the Cs-137 in soil ⇒ leafy vegetable ⇒ human consumption exposure pathway at three fictitious contaminated sites in California, Colorado, and Florida. An annual dose equation was developed and per USEPA risk assessment guidelines, traditional, single point annual dose estimates were...
Associations between occupancy patterns of a montane anuran species, Rana cascadae, and habitat structure at multiple scales were examined to investigate how population structure may influence persistence in spatially and temporally heterogeneous environments. Predictions were based on population dynamics suggested by source-sink and metapopulation models. Potential sites in three basins...
Retirement is a later life transition that may affect a variety of areas in a person's life. One area is the division of household labor. Historically, women have been responsible for and performed the majority of household labor. Women's responsibility for household labor follows the traditional dual sphere ideology, which...
This thesis describes studies that investigated 1)
the effects of courtship on the neuroendocrine system of
female rough-skinned newts, Taricha granulosa, and 2)
whether the observed courtship-induced neuroendocrine
changes affected female sexual receptivity.
Sexual behaviors of female T. granulosa changed
dramatically during courtship. Initially, females
exhibited unreceptive behaviors to a...
This greenhouse study evaluates the influence of separately and
simultaneously imposed water stress, western spruce budworm (Choristorneura
occidentalis Freeman) defoliation, and inoculation with the root pathogen, Armillaria
ostoyae (Romagn.) Herink, on the growth and biochemical features of Abies .grandis
(Dougl.) Lindi. Seedling biomass, plant moisture status, bud phenology, and
allocation...
Historically, women made quilts for utilitarian and for aesthetic purposes. Quilting was for many women one of the few outlets in which they could express themselves in a patriarchal society. Quiltmaking in groups afforded women the opportunity to increase their personal and political empowerment and to legitimate social gatherings. Because...
Weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia
nuttalliana) infest Kentucky bluegrass seed fields of eastern Oregon. Weeping
alkaligrass is an introduced species from Eurasia, whereas Nuttall’s alkaligrass is
native to semi arid environments of western North America. These species are often
referred to collectively as ‘alkaligrass’; however, for farmers...
A vegetation study was made of four coastal marshes near Juneau,
Alaska. Results confirmed earlier studies' findings in southeast
Alaska that communities or assemblages of species can be identified
but from marsh to marsh these assemblages appear to have no consistent
relationship to each other or to environmental "factors" such...
The presence of an increased accumulation of intraabdominal fat (IAF) has been linked to dyslipidemia, hyperinsulinemia, and hyperglycemia, which precede the development of type 2 diabetes and coronary artery disease (CAD). It has been shown that IAF begins depostition during childhood. Human studies suggest that regular endurance exercise, that does...
Grief--the reaction to a significant loss--is a near-universal human experience, from which a subset of grievers (10%-15%) have difficulty recovering, placing them at high risk for negative health and mental health outcomes (Marks, Jun, & Song, 2007). For those showing substantial distress, counseling has been shown to be an effective...
Community colleges today are experiencing monumental shifts in their operating
environments. Some of these changes are known, but many of them are not. They
include shifts in curriculum, funding, and societal expectation to name a few. Through
the constructs of high quality work environment and organizational fluidity theory, this
research...
My dissertation focuses on the evolutionary forces that have shaped the chemical signaling system of plethodontid salamanders. Pheromones mediate two phases of plethodontid reproduction: mate attraction prior to courtship and female persuasion during courtship. Substrate-borne chemical signals are believed to play an important role in mate attraction for these animals....
Oscilloscope display of modification of a square wave signal passed through stem tissue was evaluated as a means of detecting depth of dormancy and survival potential of coniferous seedlings. Trace form did not change during release from deep dormancy in Douglas fir. This release was judged by observing speed of...