Biodiversity studies allow for a more holistic approach to the conservation of
species. Using one measure ofbiodiversity, that ofspecies richness, this study
investigates the correlations between bird species richness and a set ofvariables. These
variables represent climate, productivity/available energy, habitat heterogeneity,
disturbance, and topography. Another aspect ofthis study is to...
Pea seed-borne mosaic potyvirus pathotype 1 (PSbMV-P1) has the ability to infect most genotypes of Pisum sativum. The exception are those genotypes that are homozygous recessive for the sbm-1 gene. The life cycle of PSbMV pathotype 4 (PSbMV-P4) is unaffected by the sbm-1/sbm-1 genotype. Infectious clones of Pl-P4 recombinants were...
The three essays in this dissertation progressively answer the following questions: (a) How important are constraints? (b) Who benefits from removing constraints? (c) When does a constraint for a single market predominantly affect closely related markets? These questions are applied in the context of time, weather, and minimum wage constraints,...
The beginning of the twenty-first century has seen an upsurge in petroleum prices and an increased concern over greenhouse gas emissions. Consequently, the interest in biodiesel production has heightened. Policy at the Federal level, such as the blender’s tax credit which provides $1 for every gallon of biodiesel blended with...
Multivariable functions permeate physics, mathematics, and other sciences. Understanding how quantities in multivariable relationships change together – or co-vary – is important for studying physical systems. In this project, we asked junior-level physics majors to describe the covariation of quantities in a multivariable context given a 2D graph. We identified...
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 purpose of this study was to compare the quality of data
obtained from individual oral and group written administration of a
classroom simulation test. The individual oral procedure involved
one group of subjects taking the simulator test individually and responding
orally, while the group written procedure involved another
group...
This study assesses the economic potential of biodiesel production in the Willamette Valley for six oilseeds as potential feedstocks: canola, flax, camelina, yellow mustard, sunflower, and safflower. We evaluate costs and returns from feedstock production, oilseed crushing, and biodiesel processing. Our analysis is based on the best available information on...
STEM is evolving as a discipline and includes challenging educational practices. Teachers need support to address these challenges and implement STEM. We present an intervention in which a STEM coach supported teachers implementing STEM across a school district. The coach role was valued for (1) connecting to outside resources, (2)...
Habitat availability and use by an urban population of opossums
were studied with radio telemetry in Corvallis, Oregon in 1981 and
1982. For non-den observations, residential neighborhood types were
used about in the proportion available, agricultural/park/riverfront
neighborhood types were used in higher proportion than available, and
commercial/industrial neighborhood types were...
Products as diverse as soda-pop, fashion and
automobiles are selling to the tunes of classic and current
pop and rock music. The combination of MTV (Music
Television), the latest audio-visual technology, and the
replacement of movie stars by rock stars as the idols of
contemporary youth (Beckett, 1985; Hartman, 1987),...
This work was performed on Trillium albidum Freeman (Liliaceae), to
clarify the pattern of morphological variation between the small-flowered
populations at the northern limit of its range ( T. parviflorum Soukup) and the
larger-flowered populations from southern Oregon and northern California. It was
hypothesized that only a single species of...
Heavy mineral compositions of sands from Oregon beaches,
rivers and sea cliffs have been determined in order to examine the
causes of marked along-coast variations in the beach-sand
mineralogy. The study area extends southward from the Columbia
River to the Coquille River in southern Oregon. The heavy-mineral
compositions were determined...
In the early part of his philosophical career, Paul Ricoeur worked out a general theory of symbols which he illustrated with the symbols of evil. He subsequently explained this theory in several essays (his final major statement on symbols can be found in Interpretation Theory: Discourse and the Surplus of...
Reform in science education has often emphasized task-based learning as an instructional method to improve student understanding and retention of concepts, and to promote the development of reasoning and problem-solving. Yet studies assessing student knowledge at the beginning and end of a task-based class show mixed results. Students in task-based...
Lactococcus lactis subsp. cremoris Ropy 352 and L. lactis
subsp. cremoris Hollandicus produce an exopolysaccharide (EPS) that
imparts commercially desirable textural and rheological properties
to fermented milk products. This ropy phenotype is expressed under
specific environmental conditions. A mucoid EPS phenotype, also
expressed under specific environmental conditions, but not involved...
One forty-item questionnaire (Cancer Nursing Outreach
Program Evaluation Tool) and one twenty-item questionnaire
(Cancer Attitude Survey) were submitted to a randomly
selected population of 200 employed associate, diploma and
baccalaureate degree nurses distributed among numerous
practice settings in the State of Oregon. Data were
analyzed using Analysis of Variance (fixed...
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....
Relatively little, if any, research has been done in the area of attitudes of inmates toward the clothing, and clothing policies of correctional institutions. The purpose of this study was to provide exploratory research in the area of inmate attitude toward correctional institution clothing. The variables investigated were: age, race,...
Two experiments were conducted to evaluate supplementation methods and availability of selenium from environmental waste materials to grazing livestock as a potential means of waste recycling. One involved incorporation of wastes into salt for freechoice supplementation to the animals themselves, the second involved fertilizer amendments with wastes to grow Orchardgrass...
The attachment of myristic acid to the N-terminal glycine residue of many
eukaryotic and viral proteins is often essential for the acquisition of the protein's
biological activity. Vaccinia virus (VV), the prototype member of the Poxviridae,
expresses several myristylated proteins during the course of infection. Only one of
these proteins,...
The nature of the genetic variation associated with a cross involving winter and spring wheat parents for four quality factors was evaluated. Yamhill, a soft white winter wheat, and Inia 66, a hard red spring wheat, were selected as parents for this study. They represented distinctly different phenotypes for the...
This investigation was undertaken to develop a procedure
by which the fatty acids could be separated from the
hydroxy fatty acids of bark waxes. The specific hexane-insoluble, benzene-soluble wax used in this research was obtained
from the bark of white fir, Abias concolor, (Lindl.
and Gord.).
The acids were removed...
Many herbivores of the Pacific Northwest rely on forest understory shrub leaves for a source of nitrogen, energy, and moisture. I measured nitrogen, protein-binding capacity, and condensed tannin concentration as indicators of available nitrogen; cell wall constituents and lignin as indicators of available energy; and moisture concentration in young and...
Falls are extremely common among the older adult population, account for substantial morbidity and mortality, and are often potentially preventable. It is estimated that 9 out of 10 of hip fractures in older adults occur as the result of a fall. The economic consequences of hip fractures are estimated at...
The Gothic cathedrals of France arose in a particular social and political environment, and the material culture, the structures themselves and their contents, bear witness to those realities even today. In addition, the cathedrals themselves were catalysts for cultural change. They encouraged urban growth in a country that had previously...
Operating speed is one of the best performance measures that can tell transportation agencies how well or how poorly the transportation system is functioning. Fluctuating operating speeds often mean there is a design flaw or something about the physical road design that violates drivers' expectations. A primary example of this...
The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...
This collection of poems focuses on a range of content. They pose many questions that consider issues surrounding driving, cars and independence, as well as masculinity, fatherhood, domesticity and parental identity. The collection consists of three parts, Freeway, Menace, and Control. Freeway contains poems on driving and cars, some of...
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KarenE. Holmberg
This collection of poems focuses on a range of content. They pose many
This collection of poems and essays is about the folklore of family and the shadowy imprint family myth can leave on its members. At the center of the argument is a struggle about coming to terms with these shadows from a speaker trying to find a sense of a self...
The death of a child is, for many, a fear too terrifying to imagine. The poems collected here explore this difficult loss; they examine the realities that form, and fall away, after the realization of a parent?s worst fear. Through the poems? speaker, a bereaved mother, a multitude of worlds...
This study analyses the culture, knowledge and resource use patterns of the Karang tribe in Phong-Luk village, which is located at the Kaengkrachan National Park. The goal of this project is to reveal the culture-based local wisdom of the Karang tribe that is consistent with sustainable environmental resource management and...
The purpose of this study was to explore the factors that influence the ability of teachers and administrators to use data obtained from a data warehouse to inform instruction. The mixed methods study was guided by the following questions: 1) What data warehouse application features affect the ability of an...
The Spillways is a collection of poetry investigating a wide range of themes: identity, memory, loss, illness, labor, suffering, and grief. At times, the poems investigate place−in the physical and natural world−as a driving force of the speaker's identity. Many of the poems also consider the role of work and...
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Karen Holmberg
The Spillways is a collection of poetry investigating a wide range of themes
Optimal aging is strongly related to personality factors along with health-behavior habits. Personality has played a key role in understanding the interactions between human behavior and the environment and as a vital predictor in determining health outcomes of individuals. Although previous studies have found links between personality traits and health,...
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Karen A. Hooker
Optimal aging is strongly related to personality factors along with health
Caregiving circumstances frequently evoke high levels of stress for caregivers and have consistently been linked to adverse psychological and physical health consequences. Within the caregiving literature, researchers have sought to answer questions about why some individuals seem to be particularly vulnerable to the well-established deleterious consequences of caregiving stress. Several...
Average monthly temperatures (maximum and minimum) and precipitation patterns are expected to change as a direct consequence of anthropogenic climate change. Temperatures are expected to be warmer in the future but precise estimates vary depending on factors like number of ensembles and emission scenario. For this study, we used 100...
This qualitative study was designed to identify factors
that might affect the psychological and educational wellness
of nontraditional students in nontraditional graduate
programs in Education.
Specifically, informants were selected purposefully
from three Oregon State University extended-campus graduate
programs in Education. Student informants were working
professionals with family obligations. Faculty informants...
This collection of poems spans a range of content. They pose many questions that consider issues surrounding identity, perception, and the relationship between the self and other. The collection consists of four parts. Parts I and IV explore the self and other by using personal experience and persona. Part II...
Ageism in the context of global population aging could lead to increasing human and economic costs. Age stereotypes tend to be negative (Hummert, 1990) and ubiquitous (Nelson, 2002) there are a variety of well documented detrimental consequences of negative age stereotypes on older adults' physical, cognitive and psychological outcomes (Hummert,...
This qualitative study explored the role of leadership in implementing co-teaching for English language development in K-12 settings, specifically, the role of leadership of administrators and teacher-leaders. Research has confirmed that school leaders substantially impact student outcomes and teacher effectiveness (Cheung et al., 2018; Leithwood et al., 2004; Liebowitz &...
The history of American Indian and Alaska Natives (AIAN) in education is filled with conflict and painful memories for many. Indian boarding schools that lasted through the early 1900s were used as a tool for forced assimilation of AIAN people. With the disturbing motto of “Kill the Indian, save the...
This collection of poetry explores faith and isolation while questioning the ability of language to adequately express subjective experience. Gustie has provided a deeply contemplative, though rarely completely serious, romp through the lives of others who, ultimately, are reflections of the self. The three sections of the collection establish a...
This research addresses the complexities of White racial identity development in the lives of five elementary and middle school preservice teachers during their graduate teacher education program at a private Christian Pacific Northwestern university. Using a poststructural framework, this research investigated three questions: 1) How do the aspects of subjectivation...
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Karen M. Higgins
This research addresses the complexities of White racial identity development
This research addressed the role of educational technology associations as change agents within education with particular emphasis on issues of advocacy and leadership. Using a poststructural feminist lens and the metaphor of interview and analysis as storytelling, it explored the perspectives of nineteen individuals belonging to a national level educational...
Her Hair is an Open Hand is a collection of free verse poems exploring unity and division through the lens of myth and place. The collection is organized into three sections. The first reflects on division: alienation between the speaker and physical landscapes, isolation within romantic relationships, and the violation...
Something Mortal I Could Fall Upon is a collection of poetry exploring geographical, emotional, and cerebral permutations of home. These poems ask: What is home? What does it mean to give up a place? How does, or can, one rebuild the home? Although it is clear the speaker loves the...
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KarenE. Holmberg
Something Mortal I Could Fall Upon is a collection of poetry
The purpose of this study was to analyze preservice teachers' talk about gender issues in education through a poststructural feminist theoretical framework. Eighteen Master of Arts in Teaching students volunteered to participate in a seminar. During the seminar the participants wrote about and discussed gender issues in teaching. Data collected...
This project analyzes how women have radically changed the world of western print in the 21st century. To conduct this analysis, I examine a series of oral history interviews that I conducted in 2020 with women printers on the West Coast and employ a critical feminist methodology to study the...
DNA mismatch repair (MMR) is an evolutionarily conserved process used by cells to decrease mutation rates, thereby increasing genetic stability and reducing cancer risk. Germline mutations in the MMR gene MLH1 have been identified in Lynch Syndrome patients, and in many cases are suspected but not confirmed as causative for...
Co-teaching and collaboration are an increasingly popular service model for English as a second language (ESL). In this model, the language specialist, sometimes called the ESL teacher, works together with a content teacher, each using their respective expertise to meet the needs of students who are identified as English learners...
Research indicates that adolescents with a history of parental incarceration are at higher risk of delinquent behaviors (Murray & Farrington, 2005), however the protective role of parent-adolescent relationships is largely unexamined when compared with negative dimensions of parenting. To examine the potential protective effects of the adolescent’s perceptions of a...
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Karen Hooker Bridget Hatfield
Research indicates that adolescents with a history
The purpose of this dissertation was to contribute to understanding the client's experience of power in their therapeutic relationships with mental health professionals. The manuscript in Chapter 2, A Critical Metasynthesis of the Qualitative Research on the Client's Experience of Power in the Therapeutic Relationship, used qualitative metasynthesis to review...
Full Text:
AN ABSTRACT OF THE DISSERTATION OF
Karen A. Hixson for the degree of Doctor of Philosophy in
The purpose of this dissertation was to contribute to understanding the client's experience of power in their therapeutic relationships with mental health professionals. The manuscript in Chapter 2, A Critical Metasynthesis of the Qualitative Research on the Client's Experience of Power in the Therapeutic Relationship, used qualitative metasynthesis to review...
Full Text:
Supplement to Dissertation
Understanding Power in the Therapeutic Relationship
Karen Hixson
The dominant narrative of Asian Americans in higher education is one of high achievement, success, and wellness. Dominant voices of white supremacy have primarily constructed this narrative. Asian Americans are regarded as the model minority or the dichotomous “model” while simultaneously maintaining “minority” status. This study centers on seven Asian...
As a result of the calls for reform in mathematics education and the ever-changing nature of mathematics, today's teachers face the challenge of teaching unfamiliar content in ways that are equally unfamiliar. In view of this challenge, the purpose of this study was to investigate middle school teachers' subject matter...
Renewed interest in the abandoned War Eagle Mine, which is
located in the center of the gold districts of central Idaho,
provided the opportunity for a detailed study of the deposit. The
goal of this study is to determine the genetic history of the deposit
with respect to regional mineralizing...
One of the most powerful and life-changing events that can occur in the life of a family is
the death of a child. Researchers who have studied death and bereavement suggest that a
child's death has a dramatic impact on parents. However, little is known about the ways
in which...
Climate sensitivity is generally studied using two types of models. Atmosphere-ocean general circulation models (AOGCMs) include interactive ocean dynamics and detailed heat uptake. Atmospheric GCMs (AGCMs) with slab ocean models (SOMs) cannot fully simulate the ocean's response to and influence on climate. However, AGCMs are computationally cheaper and thus are...
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GCMs with2
Slab-Ocean Models”3
Karen M. Shell ∗
College of Earth, Ocean, & Atmospheric Sciences
This research applies the biologically inspired, artificial evolutionary processes of Genetic Algorithms and Genetic Programming to digital hardware circuit synthesis and minimization. In this new application, three approaches are taken to genetic hardware development. First, as a method for logic synthesis, Genetic Programming is applied to the building of logic...
The European hazelnut, Corylus avellana L., was imported into the U.S. in the late 1800's and is now grown throughout the Willamette Valley in Oregon. A native species of hazelnut, C. cornuta Marshall, is a common shrub found in forested areas of the Pacific Northwest. Foliage of both C. avellana...
An algorithm is described for determining the vertices
and supporting planes (or lines) of the convex hull
of a given set of N distinct points in 3-space. The
method involves determining a finite sequence of convex
hulls, each successive convex hull being a better approximation
to the convex hull of...
Chemoreception is one of the dominant sensory modalities for many species of salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are known to respond to some sort of chemical cue. These responses are as varied as delaying hatching, seeking refuge, or initiating aggressive...
A compartmental model of the immune system is simulated.
Chapter I discusses the importance of such a
model, reviews past immune system models, and summaries
the immunological theory the model is based upon. In
Chapter II, the compartmental representation of the immune
system is developed from immunological and physiological
theory....
The objective of this study was to determine the internal consistency
rating for the Film Test for Understanding Behavior (FUB)
and the three subscales within the test. An estimation formula which
contrasts sums of squares generated from an analysis of variance
was used to compute the internal consistency reliability coefficients...
The black and white pattern formed when an individual word is
printed on a page was analyzed by the Fourier transform. The Fourier
transform produces a sequence of sinusodial functions, usually called
spatial frequencies, whose amplitudes depend upon the particular
pattern analyzed. These amplitudes were examined to determine if the...
Documentation of the side effects of pesticides on
arthropod natural enemies has expanded rapidly since the
1950's as part of an increase in non-target side effects
literature. Most reviews have been based on empirical
analysis of selected literature. The SELCTV database was
developed to make a larger information base accessible...
A control program restricting the use of second generation
cephalosporins was evaluated.
A retrospective cephalosporin use review was conducted at two
large teaching hospitals; the Veterans' Administration Medical
Center (VAMC) and the Oregon Health Sciences University (OHSU). A
control program restricting the use of second generation cephalosporins
was in operation...
Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...
The Olympia oyster is a foundation species that increases habitat structure for associate species in estuarine systems of the Pacific Coast of North America (Kimbro & Grosholz, 2006). This oyster provides ecosystem services in the form of water filtration (zu Ermgassen et al., 2013), habitat for commercially valuable species such...
Mentor teachers are currently seen as a solution to
education's dilemma of how to orient beginners into the
profession and provide educational advancement for its most
capable, experienced teachers. One goal of Oregon's mentor
program is to have mentors provide their proteges with
instructional assistance through an observation process.
The...
A liquid-extraction procedure for the concentration of zinc in
sea water was developed. The metal ion in sea water was chelated
with sodium diethyldithiocarbamate and extracted into an organic
solvent, methylisobutylketone, at the normal pH of sea water. A
back-extraction into HCl followed, providing a concentration of 30X
for the...
Most studies of plant disease epidemiology have focused on epidemics in host
populations composed of a single genotype. But crop plant diversity can be a useful
means of improving the deployment of resistance genes. In a series of experiments with wheat stripe rust and potato late blight, we studied factors...
Incidental bycatch in commercial fisheries has been identified as a threat to black-footed albatrosses (Phoebastria nigripes) and Laysan albatrosses (P. immutabilis). Effective long-term conservation of these albatrosses necessitates a thorough understanding of their marine distribution, which marine habitats are selected during foraging, and where they are most likely to interact...
The purpose of this study was to determine if there
were differences between testate or intestate university
employees relative to: 1) demographic characteristics
(age, income health, marital status, education, number of
children, housing tenure, and gender), 2) planned personal
and family retirement income sources (including: savings,
individual retirement accounts, mutual...
Enzymes play an important role in the environment, they breakdown natural-occurring and anthropogenic molecules so that they can be transported into cells and utilized. Enzyme assays are routinely used in soil science and oceanography to measure the activities of specific processes and to serve as general indicators of microbial activity....
Grounded in the life course perspective, this study examined
stress among long-distance caregivers, asking whether stress levels vary
by family relation to the care recipient or by geographic distance. A
growing older adult population forecasts a corresponding need for
caregivers. Although family members are the primary source of care for...
The study was undertaken to determine if the construct and vocabulary
of systems theory are related to academic performance such that
a) the understanding of either or both can predict grade-point average
for college students, and b) the explicit teaching of both construct
and vocabulary to minority students can improve...
This study uses 9 years of longitudinal, student-level data from the Los Angeles Unified School District to provide updated, empirically–based estimates of the time necessary for English learners (ELs) to become reclassified as proficient in English, as well as factors associated with variation in time to reclassification. To illustrate how...
The purpose of this study was to compare Far Eastern
influences on Western women's dress as represented in both
a high fashion and mass fashion magazine between 1910 and
1925. Vogue was selected as the high fashion magazine and
Ladies Home Journal as the mass fashion magazine. The
questions that...
A review of the literature revealed that there are many variables that
influence teachers' instructional practices. These influential variables fall into
three categories: those related to the teacher, which are referred to in this
study as teacher role characteristics; those related to the inservice education
activities of teachers, referred to...
Groundwater is a vital resource and efforts must be made to protect its quality. In certain areas, its quality has been
threatened by the introduction of oil and gasoline, many times originating from underground storage tanks. Massachusetts has
directly reacted to this concern about groundwater quality by promulating a Massachusetts...
In that the concept of authority in terms of the creation of a
literary work of art indicates a single creator or controller of a
literary work, a delineated inscriber of the text who initiates the
act of communication, writing for theatrical production can be
described as a feminized art...
The purpose of this study was to better understand the relationship between selected academic factors and the persistence of GED recipients in community colleges in the state of Oregon. With this purpose in mind, the study addressed the following research question: Is there a relationship between selected academic variables and...
Altitudinal variations in upland regions of the earth create
variable climatic zones and conditions. Plant and animal
communities must adapt to these conditions, and when they reach
their tolerance limits for environmental conditions at the upper
levels of a zone, they cease to exist in the environment. Humans
also utilize...
This project concerns the design, layout, assembly, debugging, and testing of a Printed Circuit Board (PCB) that autonomously, reliably, and effectively conducts Cyclic Voltammetry (CV) measurements. CV is an electrochemical procedure done to analyze, quantize, and visualize reversible reduction-oxidation reactions, often used in medical devices to monitor the levels of...