Given the many significant roles that bacteria play in modern food manufacturing, it is crucial that we have a fundamental understanding of how bacterial communities assemble and behave in the food manufacturing environment. The focus of this dissertation was to investigate both the spatial and temporal distributions of microbial communities...
This study focused on the potential water and energy savings from implementing a revised schedule of a recirculation pump connected to a condensing gas tankless water heater located in a study home in Portland, Oregon. The existing recirculation pump activation schedule was studied for its impact on the overall water...
The aim of this research was to provide forest managers and researchers with a better understanding of individual tree defenses and tree responses to disturbances, within a Collaborative Forest Landscape Restoration Program area. Forest restoration often aims to increase stand-level resistance to uncharacteristic changes, and stand-level resistance begins with tree-level...
In an era of human-induced climate change, there is increasing interest in encouraging people to reduce their carbon dioxide (carbon) emissions by adopting low-carbon behaviors, or behaviors that reduce a person’s use of fossil fuels. I designed the Campus Carbon Challenge as a research and outreach project to gain a...
Forests are highly valuable resources providing both timber as well as many non-use values like habitat for various endangered and threatened species, carbon sequestration, and recreation, to name a few. Given that there are 765 million acres of forestland in the United States, almost 60% of which are privately owned,...
A thermal infrared (TIR) camera is used to remotely sense the foliage temperature in a mountain valley. The foliage temperature is used as a proxy for air temperature and can be used to study and map the dynamics of the nocturnal, weak-wind boundary layer in this valley. All radiative flux...
The Endangered Species Act (ESA) is one of the strongest pieces of legislation enacted for the protection of imperiled species in the United States but has often spurred controversy among resource users for its emphasis on species protection and recovery above all other resource uses. In recent years, the Section...
The purpose of this case study was to describe the development
of an adult high school diploma program at Linn Benton Community
College, Specifically, the purposes of this study are: (1) the creation
of an instructional approach utilizing performance objectives as a
means of satisfying the minimum adult high school...
In 1959 the British Ornithological journal, The Ibis, published a centenary commemorative volume on the history of ornithology in Britain. Over the previous few decades, the contributors to this volume had helped focus the attention of ornithologists on the methods, priorities, and problems of modem biology, specifically the theory ofevolution...
Eccentric rate of force development (ECC RFD) is a measure of the rate at which muscles can generate decelerative forces. However, it has traditionally been measured while jumping on force plates, which are not easily accessible or easy to use in a practical setting. With technology advancements it may be...
A proposed modeling technique that yields a best fit to observed wide-angle reflection profiles incorporates (1) the use of migrated vertical reflection profiles to provide topographic control, (2) ray tracing to produce theoretical wide-angle reflection profiles for hypothetical crustal sections, and (3) the iterative adjustment of crustal layer dip, thickness...
There is limited knowledge regarding differential training as it relates to balance. The purpose of this study was to compare the performance and retention of a differential training balance program and a traditional balance program. Thirty-three Division I soccer athletes volunteered to participate and 29 completed the study. Participants were...
Spotted wing drosophila, Drosophila suzukii, is a recently introduced, invasive pest in Oregon. It oviposits in near-mature and mature fruit, and thus is an important concern for the small fruit industry. A crop consultant observed that mature raspberry fruit with D. suzukii larvae do not show symptoms of molds as...
The effectiveness of a three-hour nutrition education workshop
for home economics teachers given in 18 locations in Oregon was
evaluated based on responses from 138 teachers. Changes in knowledge
of and attitude toward four nutrition topics (fast foods, vegetarianism,
weight control, and food exchanges) were measured using
questionnaires completed at...
A study of nutrient intakes was conducted on the Southwest
Oregon non-reservation Indian population during June and July of
1980. Participating households were selected by random methods from
a Southwest Oregon Indian Health Project listing of Indian
households in the six-county area. Twenty-four-hour dietary recalls
were obtained by interview method...
Hearing loss is one of the most common defect, affecting 360 million people worldwide due to several factors including congenital, present at or soon after birth or acquired with age. Congenital hearing loss affects 32 million children in the world. The economic impact of hearing loss is estimated to cost...
This study compares the requirements of three forest certification systems, the Sustainable Forestry Institute (SFI), the Forest Stewardship Council (FSC), and the International Organization for Standardization (ISO), with the 2005 McDonald-Dunn Forest Plan Revision. The analysis was done with a series of matrices comparing the requirements of SFI and FSC...
Research examining disparity between baccalaureate completion among "native" and community college transfer students has gained attention in recent years. Current and prior research has identified important pre-college and demographic characteristics with a positive relationship to baccalaureate completion. Yet few studies have focused on the influence of nonacademic and academic environmental...
Interrelationships among attitudes toward and practice
of nutrition and health were determined from results of
335 responses to a survey mailed to members of a prepaid
health plan in Portland, Oregon, in the Spring of 1981.
The scales used to test attitudes included Subjective
Index of General Well-Being, Health Locus...
Data regarding professional communications between physicians
and dietitians in hospitals were obtained from results of 84
responses to a survey of all hospital dietitians (135) listed in the
1982 Oregon Dietetic Associations' Membership and Employment Directory.
The data were gathered utilizing an initial mail-out questionnaire
and a follow-up log booklet...
Brenda Ueland is a writer whose most noted work is a book which
explains her theory about how to write. She also published an
autobiography and a co11ection of essays as well as achieving some
notoriety as a magazine writer to the twenties and thirties. Ueland's
writing theory is based...
Molecular genetic and enzymological techniques have been employed to study antibiotic biosynthesis. In this thesis, we studied the formation and modification of the nonproteinogenic amino acid enduracididine (End), which exists in two important antibiotics, mannopeptimycins (MPPs) and enduracidin.
Sequence analysis of the MPP gene cluster revealed that the product of...
Quality relationships among families and teachers in early care and education (ECE) hold
promise to nurture resilience among children impacted by adversity. However, little is known
about how adverse childhood experiences (ACEs) may also affect the interactions between
families and teachers. This study uses quantitative survey data from families (N...
Skeletal muscle is the largest organ in the body by mass, comprising roughly 40% of total bodyweight in adults. It plays diverse and unique roles that include movement, locomotion, and support for posture and internal organs, among others. The structural foundation for all skeletal muscle in adults is formed early...
A dissertation describing the results of a series of greenhouse experiments conducted to better understand phytoremediation in stormwater bioretention systems.
This research investigated the development of a novel canine model to study preeclampsia. Normal canine placental development has morphologic and histologic similarities to the shallow trophoblast invasion occurring with preeclampsia in humans, which makes the dog a particularly good choice for modeling this disease and will be an improvement on...
The spatial and temporal patterning of sequence specific transcription factors (SSTFs) contributes to cell type specification and organ formation during embryogenesis. Homeodomain transcription factors are evolutionally conserved among invertebrate and vertebrate animals. They are responsible for body segmentation and organogenesis. Lbx1 and Pitx2 both are homeodomain transcription factors contributing to...
Taylor’s frozen turbulence hypothesis is the central assumption invoked in most
experiments designed to investigate turbulence physics with time resolving sensors. It is also
frequently used in theoretical discussions when linking Lagrangian to Eulerian flow formalisms.
In this work we seek to quantify the effectiveness of Taylor’s hypothesis on the...
A better understanding of grass seed crop and soil fertility is necessary to
improve fertilizer practices and preserving water quality in Willamette Valley,
Oregon, where 55% of land-use is in grass seed production that directly impacts
adjacent waterways containing native protected fish species. I determined tillage
effects on soil N...
Prior to 1978, Dolly Varden Salvelinus malma were classified into an anadromous and interior form. Cavender (1978) classified the interior form as a distinct species, Salvelinus confluentus, the bull trout. Bull trout are large char weighing up to 18 kg and growing to over one meter in length (Goetz 1989)....
The purpose of this study is to determine whether a 12-week nutrition and physical activity (PA) intervention program for middle-aged, pre-menopausal women at risk for Metabolic Syndrome (MetS) would reduce their risk factors. Ten overweight women (mean ± SD: age = 47 ± 3y; Body Mass Index = 31.0 ±...
Three experiments were conducted to study the influence of dietary fatty acids on the production performance and immune response of chickens. In experiment I, forty day-old broiler chicks were fed diets containing 5% of either animal fat + conjugated linoleic acid (CLA) (Diet I), sunflower oil (Diet II), flax oil...
We investigated the relationship between calcium and protein intake and bone loss over a one-year period in 99 early postmenopausal women (1-36 months) aged 51.3 ± 0.31 years. Bone mineral density (g/cm²) of the left hip (total hip, femoral neck, greater trochanter) and lumbar spine (L1-L4) as well as body...
The nutrition transition is a global phenomenon in which populations move from low socioeconomic status (SES) to high SES and from high physical activity to low physical activity. Rising rates of urbanization and non-communicable diseases in West Africa may indicate an advanced phase of the nutrition transition; however, through a...
Researching what I believe to be exclusionary practices in higher education against
African Americans has compelled me to approach this subject, in part, historically.
Although I realize that a historical chronology of any subject is often deceptive, as with
any writer, I am tempted to interpret events to fit my...
U.S. incarceration rates have soared over the past three decades and the demographic characteristics of those who end up in prison are a reflection of the nation's structural inequality. Incarcerated fathers are a socially disadvantaged group and spending time in prison compounds already significant risk factors that these men experienced...
In apples, the rapid changes occurring in fruit metabolism when approaching maturity affect their quality at harvest and after storage. The interest in the newly introduced cultivars, 'Gala', 'Braeburn' and 'Fuji' has initiated the following study on maturity indices and storage in the conditions of the Pacific Northwest. 'Gala', 'Braeburn'...
In the Pacific Northwest some prune cultivars often exhibit inconsistent fruit set. Several factors have been associated with this characteristic. Temperature, genotype and boron content are among the most frequently mentioned. Studies were conducted to determine the effect of fall ethephon application on flower bud growth and ovule longevity in...
It is necessary to evaluate and compare the characteristics of
various methods of accessing data-files in order to utilize economically
both the hardware and the software (Space and Time) supported
by the digital on-line system. The purpose of this paper is to
describe and evaluate the structure and use of...
Orchard floor management (OFM) practices can improve soil function and alter
the soil biological community. Soil function is dependent on soil forming materials and
on management practices but little is known about how OFM affect orchard soil quality,
fertilizer N uptake, or tree growth and production.
Research plots were located...
Identifying mechanisms that determine who lives and dies is the first step in developing successful restoration techniques for rare species and endangered habitats. We studied interactions that affect establishment of native plant forbs of conservation concern at the seedling stage to support the theoretical basis for restoration activities in Pacific...
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Thomas N. Kaye
Identifying mechanisms that determine who lives and dies is the first step
This dissertation is a qualitative secondary content analysis of clinical records collected for the Spokane Safe Start Project in Spokane, Washington, a program designed to offset trauma in children exposed to domestic and intimate partner violence (IPV). The Centers for Disease Control and the World Health Organization have identified intimate...
There have been years of stalled K-12 school finance reform efforts in Idaho, yet it was unclear what key Idaho education interest groups currently thought about how Idaho funds its public schools. Therefore, this project explored the institutional perspectives and beliefs of K-12 Idaho education stakeholders regarding the Idaho K-12...
This dissertation concerns two topics in the analysis of finite population surveys:
setting sample size and hypothesis testing. The first concerns the a priori determination
of the sample size needed to obtain species members. The second concerns
testing distributional hypotheses when two equal-size populations are sampled.
Setting sample size to...
The preparation of 4-(3-hydroxypropyl) cyclohexanone and
of 4-(3-hydroxypropyl) cyclohexene and a number of their derivatives
as potential precursors of asymmetrically substituted bicyclo [3, 3, 1]
nonanes is described.
The ketone, 4-(3-hydroxypropyl) cyclohexanone, was prepared
from p-allylanisole by three different routes. Common to each
route was an initial hydroboration-oxidation followed by...
One purpose of this study was to develop a valid and reliable instrument based on the Oregon Personal Finance Education Guide which would measure teacher competency in consumer education/economics/ personal finance. A second purpose of this study was to assess the level of competency possessed by persons teaching consumer education/...
Policy makers in the United States (US), following recommendations made by the international scientific community, have drafted national emissions reduction legislation in hopes of minimizing the harmful effects of global climate change. Included in this legislation is a national cap-and-trade system with provisions for carbon offsets. Specific provisions for forest...
Studies on net carbon exchange, ¹⁴
C assimilation, and growth
analysis were done on four cultivars of high yielding soft white
winter wheat (Triticum aestivum L. em Thell), Anza/Sturdy, Hill-
81, Stephens, and Yamhill, which differ in morphology, maturity,
and yield, to see if differences in production and distribution
of...
Agricultural economists have devoted considerable attention to
the financial stress situation of agricultural producers. Many
studies have been conducted in various regions of the U.S. in an
attempt to better understand the causes of the problem. The costs
associated with farm financial stress imply corresponding benefits to
be realized by...
This study examines the ways in which community college transfer students develop a sense of belonging at the four-year institution. This inquiry was guided by a constructivist epistemology and qualitative methodology. Data was collected through conducting one-on-one interviews and focus groups to gather information on how transfer students develop a...
PART I. A chemical examination of the materials toxic to fish in
kraft pulp mill wastes has been made as part of a water pollution
study. Thirty gallons of "foul condensate" from a typical kraft mill
gave 14 g of organic material when extracted with methylene chloride,
and an additional...
The study critically analyzes the implication of various agricultural
development policies on urban unemployment and income distribution.
More specifically it focuses on the evaluation of agricultural
policies at the macro-economic Level in the Nigerian economy.
A system science and simulation approach is used to build and
test a ten sector...
Every year thousands of families experience a major
life-changing event when they are torn from their
homeland and become refugees. Little is known about how
the refugee experience impacts the family and how members
perceive it affects their sense of family identity. The
construct of family identity as proposed by...
Job aids are instruments used on the job to improve
human performance by enhancing the knowledge and/or skills
of performers. Conventional job aids are usually printed
on paper; examples include checklists, recipes, and decision
tables.
Expert systems are computerized job aids which interact
with novices to help solve problems normally...
In light of broadening racial/ethnic educational attainment gaps, growing diversity within young populations, and the increasingly critical relationship between higher education and outcomes in adulthood, understanding the factors that shape educational attainment is an especially important task for research. With this goal in mind, the current study examined how national...
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Leslie N. Richards
In light of broadening racial/ethnic educational attainment gaps
Adolescence is a developmental stage marked by crystallization in individuals’ sense of identity (Erikson, 1994; Harter, 1999). Research on positive youth development stresses the ways in which thriving trajectories during adolescence contribute to positive lifelong outcomes (Lerner & Overton, 2008; Scales, Benson, & Roehlkepartain, 2011) A symbolic interactionism perspective (Mead,...
This paper defines four function space topologies,
characterizes two of them in terms of more familiar
concepts, and compares the four topologies. Then in the
cases of the two less familiar topologies we have considered
several common properties of topological spaces
and attempted to answer the following question: If the...
Interval arithmetic is applied to the problem of obtaining
rigorous solutions to integral equations on a computer. The
integral equations considered are the linear Fredholm equation of
the second kind and the nonlinear Urysohn equation. Techniques are
presented which enable the computer to find an approximate
solution, prove the existence...
Chiropractic treatment is used to reduce stiffness and pain. While more thoroughly studied in humans, it has been shown to be effective in horses, but relatively little evidence exists to quantify the benefits. To address this shortcoming, four methods were used to assess the effects of chiropractic treatment in horses...
It has been observed and documented that Pisaster ochraceus has very striking colors, but the reasons behind the coloration are still unknown. Three coloration categories were determined and used for a feeding trial study to investigate the effects of diet on coloration in Pisaster ochraceus. This study involved 30 hand...
The need to preserve Oregon's estuaries has been expressed
through the Land Conservation and Development Commission's Estuarine
Resources Goal 16. The first use of the mitigation guideline set forth
in this goal is in the Coos Bay estuary. The proposed North Bend
Airport runway extension will fill 32 acres (13...
Full Text:
ABSTRACT OF THE THESIS OF
Alan Henry Taylor for the degee of Master of Science
in Geography presented on
The bulk of resilience research has focused on developmental outcomes in a single domain of functioning (e.g., academic achievement), overlooking the complex interplay of positive and negative developmental outcomes that may co-occur within an individual (Luthar, Cicchetti, & Becker, 2000). Resilience may strengthen over time and across domains (e.g., psychological...
Gathering and burning firewood in heavily used subalpine areas contributes to campsite deterioration. Forest Service policy directs wilderness managers to implement the principle of nondegradation. As a result, campfires may be prohibited in areas where fire-related impacts
are significant.
The Lakes Basin and Ice Lake Travel Zones in the Eagle...
In this thesis, I read the teachers in four mid-century Victorian novels--Charles Dickens' David Copperfield (1850) and Hard Times (1854), Thomas Hughes' Tom Brown’s Schooldays (1857) and Charlotte Brontё's Villette (1853)-- within the context of mid-century English educational debate in an effort to explicate the ways in which these characters...
Our study area includes the three McKenzie populations, and a reintroduced population in the Middle Fork Willamette and tributaries above Hills Creek Reservoir. We monitored bull trout populations in the McKenzie and Middle Fork Willamette basins using a combination of sampling techniques that include spawning surveys, juvenile trapping, electronic fish...
Radiation therapy is a sophisticated complex process. Systematic methods are needed to quantitatively evaluate the quality of a complex process and hence radiation therapy treatments. An ideal result for a complex process must be established to determine if the complex process is completed acceptably. For radiation therapy, this can be...
The development of a transient electric birefringence (TEB) apparatus for macroparticle characterization is herein discussed. The experimental difficulties encountered were related largely to poor data resolution. Misalignment and strain birefringence in optical components further complicated results. Improved data digitization methods were developed, and precise mathematical models were derived in order...
Rhododendron species are host to many Phytophthora species and are an important crop in the nursery industry. The foliar epidemiology of twelve Phytophthora diseases on Rhododendron was studied in field and growth chamber experiments on two Rhododendron cultivars. The relative aggressiveness of Phytophthora spp. was assessed using disease incidence, severity,...
This study was designed to investigate the effects of group
counseling on the self concept and academic achievement of high
school sophomore health classes. Specific hypotheses to be examined
were:
1. The experimental group will evidence more improvement in
academic achievement score than will the control group.
2. The experimental...
This project looks at the relationship between social value and health outcomes among elderly individuals. It looks at the World Values Survey for an international view on how different societies view the elderly populations and compares it to the life expectancy rates in those societies. This research also addresses the...
Raspberry bushy dwarf virus (RBDV) is the sole member of the idaeovirus genus of plant viruses. It is a pollen-borne virus that economically impacts both red and black raspberries worldwide. Three strains of the bipartite RBDV have been reported. The common strain found in North America, South America, Australia, New...
Intrinsically disordered proteins (IDP) are a class of proteins that lack a three-dimensional structure and their prevalence and diverse functions in the cell have only been discovered relatively recently. The intermediate chain (IC) subunit of the microtubule motor protein complex dynein contains an N-terminal disordered region, N-IC, which is central...
Plastics have become an essential part of everyone lives, found in almost every product made today. Tires only make up a fraction of these products but as their use increasing so does the microplastics that flake off. Many studies have evaluated the toxic effects of tire particles on aquatic environments...
The purpose of this study was to determine the relative tolerance of grafted
Vitis rootstocks to low soil pH. In this capacity, the data may be pooled with results
from previous investigations to increase the overall aptitude profile of Vitis
rootstocks. A potential application of this information is that the...