In 2004, the Transition Mathematics Project (TMP), funded by the state of Washington and The Bill and Melinda Gates Foundation, was established to create projects to help high school students gain the necessary skills to become college and work-ready. Aligned to TMP's College Readiness Mathematics Standards, a fourth-year capstone mathematics...
The purpose of this quantitative study was to identify the combination of factors, both individual and programmatic, that contributed most significantly to the persistence and progression of students enrolled in a public comprehensive community college. As open-access institutions, community colleges cater to students from a broad range of socioeconomic, cultural,...
Tn5 mutagenesis of apdA (for antibiotic production) and deletion of
gacA (for global antibiotic and cyanide) resulted in the same pleiotropic phenotype in
Pseudomonas fluorescens (i.e. production of an array of secondary metabolites
including the antibiotics pyrrolnitrin, pyoluteorin, and 2,4-diacetylphloroglucinol as
well as a tryptophan-side-chain oxidase, hydrogen cyanide, and an...
A major factor in the ability of Pseudomonas fluorescens Pf-5 to act as a biological control agent is its production of antibiotics, including pyoluteorin (PLT), 2,4-diacetylphloroglucinol (2,4-DAPG) and pyrrolnitrin (PRN). The data provided in this thesis demonstrate that the presence of any of these antibiotics in the extracellular milieu affects...
More than half of students in Washington state community colleges enroll in developmental mathematics, but a relatively small percentage of these students persist to the second year. Many students place into these courses and never enroll; others enroll at some point after the first academic term, even when faced with...
Pseudomonas is a diverse genus of Gram-negative bacteria that includes pathogens of plants, insects, and humans as well as environmental strains with no known pathogenicity. Pseudomonas fluorescens itself encompasses a heterologous group of bacteria that are prevalent in soil and on foliar and root surfaces of plants. Some strains of...
Oregon, much like the nation, has historically had a paradoxical relationship to migration. Oregon is famous for the Lewis and Clark expedition and the Oregon Trail. It is, and always has been, greatly affected and inspired by interstate migration yet each successive generation has been less than welcoming to further...
Due to the current cultural paradigm that incorporates the desire to be environmentally friendly and mitigate rising fuel costs, arguments about the cost of public transit systems, ridership rates, and methods to increase use are frequent topics of public policy concern. In response to these cultural and economic concerns, the...
A history of fire suppression, growth in the wildland-urban interface, and changing climate conditions, have created a fire regime in central Oregon that is growing in severity and intensity, putting more people and structures at risk and requiring a greater percentage of state and federal agency budgets to manage fires....
This study uses the Health Impact Assessment approach to determine the health impacts of allowing accessory dwelling units in Benton County, Oregon. A literature review presents the health benefits of accessory dwelling units in urban areas and identifies the potential negative health effects in rural areas. Five accessory dwelling units...
The passage of Measure 37 in 2004 was met with a great deal of controversy as a number of voters claimed the implications of the Measure did not represent their intentions for supporting the legislation. Namely, significant opposition was aimed towards the Measure 37 claim which offered landowners financial compensation...
The hazards-of-place model of vulnerability to environmental hazards posits that vulnerability has biophysical and social components. While biophysical characteristics are important in predicting locations of elevated wildfire risk, the social characteristics of human communities may help us predict locations of elevated wildfire impacts. We examine the relationship between biophysical and...
This paper presents an application of the wave equation to the
problem of selecting a driving hammer for prestressed concrete piles.
The potentially damaging effects of these types of hammers on various
prestressed concrete piles were analyzed by means of parametric
studies carried out on a hypothetical group of problems...
Pseudomonas is a diverse genus of Gamma proteobacteria that are ubiquitous in the natural environment, including soil, water, plant surfaces, and animals. The Pseudomonas fluorescens group is a diverse collection of seven subgroups and more than 50 named species. This group is known for their production of a variety of...
Condensation Induced Water-Hammer, CIWH, has been an
historical problem for the nuclear power industry over the
past 2 decades. It has caused damage to plant systems, and
considerable anguish to plant operators. This thesis has
embarked on an attempt to characterize the fluid motion, heat
transfer, mixing, and stability of...
In 2011, a study by Freeman and Wornell uncovered that social service providers in Klamath County believed Native American children experiencing maltreatment might be slipping through the cracks. In an effort to find out how to better serve these children and their families, the current study involved interviews with 11...
In recognition of the need to determine dynamic properties of naturally frozen materials, a research project was conducted to measure the dynamic properties (dynamic moduli and damping ratio) of naturally frozen wedge ice samples obtained from the Fairbanks, Alaska area. Cyclic triaxial and resonant column test systems were employed to...
Self-regulation skills in children are an important indicator of positive life outcomes such as health and wealth. Techniques to improve self-regulation are important, as well as understanding what factors influence child development of self-regulation. This study investigates the connection between total minutes of physical activity per day, as well as...
After decades of expert-based modernization efforts that have had profound negative impacts on human and environmental health, Ecuador is currently pursuing a rights-based, participatory development paradigm known as sumak kawsay or "the good life". Despite its promises of inclusion and interculturality, this approach continues to rely on highly trained specialists,...
The major purpose of this study was to determine if there was
relationship between the power of the influence techniques used by
teacher in a nursery school setting and the response of the children
to these techniques.
The subjects were sixteen nursery school children and two
trained nursery school teachers...
The analysis of the distribution of monoterpenes through the leaf pairs of a single shoot of Mentha piperita supports Reitsema's contention that the first terpenes formed are unsaturated ketones and that saturated terpenes are produced from these. The growth of Mentha piperita under varying conditions of temperature and the leaf-by-leaf...
Measurements on growth traits up to 41 years of age
from 68 progeny sites in eight first-generation breeding
zones of coastal Douglas-fir (Pseudotsuga menziesii
[MIRB.] FRANCO var. menziesii) in the US Pacific Northwest
were used to investigate age trends of genetic parameters
and to determine optimum age of selection. Heritabilities...
This thesis is an exploration of how male trickster figures operate in the Gothic fiction of 20th century American female authors. Specifically, I look at the short stories “The Daemon Lover” by Shirley Jackson, “Good Country People” by Flannery O’Connor, and “Where Are You Going, Where Have You Been?” by...
The purpose of this study was to identify and describe the underlying mechanisms within community colleges that influence cross-functional collaboration. The study also explored the role of community college leadership in fostering internal collaboration. The following questions guided the research: (1) What does cross-functional collaboration look like at a community...
Net energy metering (NEM), the diffusion of residential photovoltaics (PV), and the smart grid transition are three accelerants of change that impact the rate of transitory change in the electric power grid system. Institutional relationships that underpin the old central station model now appear to be fracturing under the weight...
The environmental justice framework has been applied to many environmentally negative issues in the past such as toxic storage and disposal facilities, toxic release inventory sites, air quality, transportation, and global climate change. It has not yet been applied to energy production in a quantitative study. This study investigates the...
MSME development has emerged at the forefront of economic policy, with the majority of policy mechanisms aimed at creating the regulatory and institutional environments, which have historically proven to augment entrepreneurial activity. In the case of Europe a large portion of entrepreneurial policy resides within the European Community framework, however...
Declining population is a major concern for rural communities. In many places, out-migration has led to a loss of key services. This essay investigates the role of services, as well as labor markets, natural amenities, distance to urban areas, and community size, in determining net migration rates for small Oregon...
This study uses multiple regression analysis of a survey of Oregon residents to determine what factors influence an individual’s support for salmon recovery policies in Oregon. Salmon today face a variety of threats, most notably from the ‘four H’s’ (habitat degradation, hydroelectric dams, harvest practices, and hatcheries). Using the social...
The purpose of this study was to examine and compare the effectiveness
of two approaches in nutrition education instruction among culturally
diverse adolescents: the teacher-oriented lecture approach and the
student-oriented instructional design approach. The study was
designed to help culturally diverse students gain a basic
understanding of practices that promote...
Nonmelanoma skin cancer (NMSC) is the most common malignancy in Caucasian populations. One existing treatment modality for NMSCs is external radiotherapy delivered to the skin cancer tumor by a beta-emitter-containing radioactive skin patch. Alpha emitters, with their higher linear energy transfer than beta particles and shorter range in tissue, make...
Four instruments were developed to assess sex education
attitudes and skills of parents. The Parental Perception of
Preadolescent Child (PPPC), Parental Attitudes Toward the Sex
Education of Children (PATSEC), Topic Checklist (TC) and
Index of Challenging Questions for Parents of Preadolescents
(ICQPP) provided measures on how parents perceive maturity
and...
The incidence and duration of breast feeding were determined
via telephone questionnaires from a sample of 95 women who delivered
healthy infants during the month of September 1982, in the greater
metropolitan area of Portland, Oregon. This sample was limited in
that the women were married, predominately white, over 25...
Space flight results in loss of mass and function in skeletal
muscle. Data from manned flights and animal biosatellites give
evidence of possible changes in neuromuscular interactions.
Components at the neuromuscular junction are a potential site of
action for this space-induced muscle atrophy. We examined the
nicotinic acetylcholine receptor population...
Statement of the problem:
The study sought to determine whether certain
measurable differences existed between students who had
withdrawn after acceptance into the accelerated mathematics
classes in the Portland schools and students who
had persisted after acceptance into the program. Examined
were: scores on the Iowa Tests of Basic Skills,...
This study investigated the relationships between motivation for
sewing and: amount of sewing, perceived depersonalization of the job,
and creativity among employed women. Sewing for creativity and
sewing for economic reasons were the two motivations investigated.
Previous studies indicated that sewing for economic reasons was the
prevalent motivation for sewing....
A wave-by-wave forecasting system is desired for optimization of wave energy conversion devices and for improving safety of vessel-based marine operations. This study outlines the first validation attempts of a recently developed forecasting system called Wavecast. The forecasting approach uses X-Band marine radar images for data assimilation, then reconstructs and...
This study was an evaluation of fabric serviceability and consumer
acceptance of polypropylene blend knits. A review of
literature indicates a trend toward polypropylene blend fabrics for
wearing apparel, specifically for knits. The purpose of the research
was to compare two experimental double knit fabrics, a 50 percent
Creslan/Herculon blend...
Dietary advice to the public about fat consumption has consistently emphasized the reduction of total fat,
saturated fat and cholesterol. Against a background of conflicting and changing messages about how much and what type of
fat to consume, updated messages have emerged that emphasize the fatty acid profile of the...
Some years ago, the U.S. Dept. of Agriculture undertook a study of the nutrient profile of the leading species of cultivated and wild fish and shellfish. Some data from that work were published, but information on fatty acids was not included. This paper presents data on the fat, cholesterol and...