Mountain pine beetle infested forests in the Rocky Mountain region raise complicated economic, environmental, and social impacts and pose severe forest management challenges to land managers and public and private landowners. Harvesting infested forest stands provides an opportunity to utilize otherwise wasted resources, mitigate economics losses to landowners, and generate...
The objectives and characteristics of university biotechnology research, including its applicability to such industries as agriculture and food processing, arise from formal and informal linkages among university scientists, public and private-nonprofit funding sources, and industry. In the present study I develop, specify, and estimate a model of the supply and...
Bullying prevents its targets from enjoying a safe, stress-free living, learning, and working environment. For most children, bullying experiences will be merely unpleasant childhood memories. This remains the same in adult's working environment. During the past decade, the concept of workplace abuse has had an increasing resonance within western countries....
High vegetative growth of Pinot Noir vine is a common problem in most vineyards of Oregon's Willamette Valley, where sunlight exposure and heat accumulation are limited. Consequently, growers in this region commonly use vineyard management strategies to regulate vine vigor and improve grape and wine quality. Wine quality is greatly...
The purpose of this phenomenological study was to discover the experiences nurse educators (NEs) have had with oppression and to uncover how their experiences may have impacted their teaching. This study was significant as nurse retention is negatively affected by oppressed group behaviors (Duchscher & Myrick, 2008; Tinsley & France,...
Research has established that poor outcomes are the future for those without a
high school diploma--yet students continue to drop out and become members of
that population. The purpose of this qualitative study was to investigate the
experiences and perceptions of individuals who did not complete high school
within the...
Approximately 600,000 individuals will be eventually released from the prison system and millions will be released from jails across the United States each year (Mukamal et al., 2015). Some of these individuals will make their way to a local community college to make a better life for themselves. There is...
This qualitative study examines how FIESTAS (Family Involved in Education, Sociocultural Teaching and STEM) partners (comprised of out-of-school time (OST) educators, university student STEM instructors, and local business representatives) came together to facilitate a local STEM Club located in two dual-immersion elementary schools in the Pacific Northwest. The study addresses...
Institutions of higher education face a global mandate, understanding and addressing the concept of internationalization in the 21st century. As the world becomes "smaller", there is a need for college students to expand their awareness and understanding of multinational cultures and issues. Recently, many four-year colleges and universities have taken...
The purposes of this study were to find out about the associations between
hostile attributional bias and aggressive behaviors among preschool-aged children and
to identify possible sources of their hostile attributional bias. Seventy-two
preschoolers with an average age of 4.76 and their mothers acted as participants.
Children's hostile attributional bias...
A review of observational coding systems indicated the need for an
instrument which is easy to learn and implement in applied settings,
and which can be applied to diverse populations of disturbed children.
A two phase study was conducted to evaluate the reliability and validity
of observational ratings derived from...
This study compared wives defined as underemployed by educational
mismatch with not underemployed wives on four major predictor variables--
relative market work advantage; degree of competition in the
female labor market; time demands from family members; and assistance
with childcare and other housework. The data were from NE 113, An...
This dissertation was a qualitative case study focused on part-time faculty teachingdevelopmental mathematics courses in one large Pacific Northwest community college. Thecollege was selected for its size and maturity; the topic was selected for three related reasons:part-time faculty have been widely relied upon to teach these courses nationwide; students indevelopmental...
This study examined time spent in various activities by
farm women. Emphasis was placed on household work time and
how time is apportioned among various household work
activities. Time use of farm women was compared to rural
nonfarm women and urban women. Data were from An
Interstate Comparison of Urban/Rural...
Two theoretical models were examined based on the contributions of
preservice teachers' personal teaching efficacy, ethnic causal attributions, past
teaching, and international interaction experiences to their behaviors toward
international children in multicultural small group activity sessions. Path analytic
results revealed that for both models, these variables together did not significantly...
Being old and female in America often means being alone and poor. To offset this outcome financial preparation for retirement should begin in the pre-retirement years. The purpose of this exploratory study was to assess the financial preparedness of mature, single women as they approach retirement by examining the relationships...
The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Managing children with problem behaviors is a challenging task
for new teachers. Preservice training offers one means of better
preparing new teachers to meet this challenge. Before suggesting
alterations in preservice training programs, it is necessary to
understand how preservice teachers perceive and respond to problem
behaviors. Of particular interest...
In spite of the high family demands associated with having an infant, an increasing number of women are choosing to retain close ties to the labor force during this period. This study explored the employment adjustments and job satisfaction of a group of women who became mothers for the first...
This study examined children's memory for traditional and nontraditional
parental behaviors displayed in story content. Subjects
were 40 male and 40 female preschool children between the ages of 47
and 60 months. Children were read a story portraying a mother and a
father as the main characters. Each character performed...
Change initiatives have a 70 percent failure rate, but effective change is necessary if a company is to remain competitive. Current organizational change research around lean process improvement links unsatisfactory implementation results to organizational behaviors, but does not assess how individual cognitive characteristics affect successful lean implementation. Although a range...
T cell-dependent immune responses are highly sensitive to suppression by
exposure to the environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin
(TCDD), yet direct effects of TCDD on T cells have been difficult to demonstrate.
Because the activation of naive T cells is initiated by dendritic cells (DC), the studies
presented in this dissertation were...
Two light sensitive mutants of the green alga Scenedesmus obliquus strain D₃ have been characterized. The photodynamic nature of their sensitivity has been established, the subchloroplast site of photodamage has been investigated, and their noncarotenogenic character has been verified. The two mutants possess several similarities, although mutant L. S. -41...
K-12 teacher retention is an enduring concern in the United States as teachers are vital for educational achievement and change. National trends demonstrate how widespread an issue teacher retention is, yet teacher labor markets remain highly localized and highlight the complexity of teacher retention decisions. We need an improved understanding...
The purpose of this study was the development of the Sex Role
Learning Index (SERLI), a picture choice instrument for assessing the
concepts of sex role discrimination, preference, and confirmation in
young children. The SERLI consists of 60 black-and-white line drawings
depicting common objects, child activities and adult activities
and...
Throughout the world, weather-related and other natural phenomena claim thousands of lives and devour billions of dollars annually in recovery efforts. Destruction of life and property in the wake of disasters is devastating, and can have a dramatic impact on families and businesses around the globe. Yet, published works specifically...
A method to measure consumers' housing consumption and
investment attitudes according to various dimensions was initiated.
In addition, construct validity of the measurement instrument was
initiated through use of personal variables.
Two scales were developed to measure homeownership consumption
and investment attitudes. The dimensions of homeownership consumption
and investment found...
Prior to this investigation few studies had looked at
the impact of equipment design on the creative thinking of
young children while they solved problems. Nor had previous
studies provided support for a clear link between creative
thinking and problem solving. An original piece of problem
solving equipment incorporating creative...
As increasing numbers of poor children enter child care programs due to changes in work requirements under the Welfare Reform Act, there is a critical need to examine factors that may affect the quality of care that these children receive. One factor that has received limited attention in the literature...
The present experiment examined children's memory for stereotypic
and non-stereotypic sex role content in their reading material.
Twenty-four male and twenty-four female fifth grade subjects read
two short stories, each depicting a male and female character who
exhibited an equal number of masculine and feminine traits and
behaviors. Results of...
The immune system has been identified as a very sensitive target for the toxic effects of 2,3,7,S-tetrachlorodibenzo-p-dioxin (TCDD). Exposure to TCDD has been shown to disrupt the generation of both cell-mediated and humoral T cell-dependent immunity in laboratory animals; however, the mechanism remains unknown. In this dissertation, the hypothesis is...
Improvement behaviors, specifically double loop, have been linked to successful lean implementations. Although the lean literature supports individual cognitive transformation to double loop learning as an important element of lean success, there remains a strategic methodology to achieve sustainable double loop behavior. Perceptions toward behavior and employee satisfaction have been...
Fuelwood is a basic need for rural households in Malawi. However, deforestation has reduced the quantity of forest products such as fuelwood available to households. This has negatively affected rural Malawian quality of life, especially for women who are forced to walk long distances to collect fuelwood, prepare foods with...
The purpose of this study was to investigate the relationships between
adolescents' food preferences and their mothers' attitudes and knowledge about foods
and nutrition in Phitsanulok Province, Thailand. Subjects included 30 boys and 35
girls randomly selected from 11th grade classrooms at two high schools in
Phitsanulok, and their mothers....
Thirty households were randomly selected to examine intra-household gender differentials in work roles and distribution of resources, between adult men and women, and boys and girls. Work related activities were assessed by time used in agricultural work, household work, and income generating work. Distribution of resources was assessed by expenses...
This study had two major purposes. The first focused upon understanding the development of aspects of ethnic development among 4- and 7-year-old Chinese-American boys and girls from immigrant and non-immigrant families. The second focused upon understanding the contribution of selected parental (fathers' and mothers') characteristics on aspects of children's ethnic...
Resource distribution and adequacy, of elderly individuals and
families, was measured by determining an annual dollar value of
money and nonmoney economic resources. The nonmoney economic
resources were identified as fringe benfits, household production,
durable assets, interfamily grants, and community
provided goods and services. The data were collected by interviewing...
Monocrotaline (MCT) is a member of a class of naturally occurring
phytotoxins known as pyrrolizidine alkaloids (PAs). Exposure to PAs can result
in liver and cardiopulmonary lesions as well as lymphoid organ atrophy. In the
present study C57BI/6 (B6) mice received MCT (0-150 mg/kg/day, po) for 14
days. Overt toxicity...
Medical professionals experience higher rates of burnout than other professions due to the highly stressful nature of their environment. In 2018, 94 percent of physicians reported experiencing burnout – characterized by emotional fatigue, and feelings of depersonalization and low personal accomplishment – at some point in their careers. As emotional...
This study examined the effects of stage of preoperational thought, sex and mode of exploration on preschoolers ability to represent a small-scale model configuration of objects. Forty-eight subjects between the ages of 2 years, 5 months and 5 years, 4 months were classed in spatial conceptualization as either Stage I...
Exposure to TCDD suppresses the generation of immune responses through unknown mechanisms. Interestingly, TCDD enhances inflammatory responses to various stimuli. The goal of the studies presented in this thesis was to examine the role of hyperinflammation in TCDD-induced immunotoxicity. Previously we observed an increase in Mac-1⁺ cells in the spleen...
In this thesis we focus on a graphical model for multivariate spatially
correlated data--isomorphic chain graphs (ICG; Gitelman and Herlihy, 2007).
We feel ICG allow flexibility for modeling spatial correlation and are intuitively
appealing because each model has an associated graph that visually represents a
complex multivariate system. We examine...
This study examined graduate international students'
knowledge, attitudes, experiences, practices, and
satisfaction relating to credit cards. Based on the
literature, international students attending U.S. colleges
and universities were considered an important population to
study because of: (1) internationalization of credit cards
and (2) the lack of credit card research on...
Consumers' risk perceptions are examined to explain the underlying reasons for consumer
concern associated with milk from dairy herds treated with recombinant bovine growth
hormone (rbGH). A focus group study was employed as an initial step in exploring the
primary influences of consumer apprehension toward rbGH's use. The information
obtained...
The effects of selected family characteristics on
interrelated components of household asset portfolios over a
three-year time period were investigated. Specifically, this
study attempted to conceptually define mental accounts, to
identify own-adjustment and cross-adjustment characteristics
of these mental accounts, to explore influences of selected
family characteristics on these mental accounts,...
A Korean Sex Stereotype Measure (KSSM) was developed to assess the awareness of sex-trait stereotypes among Korean children. The KSSM contains 32 descriptions of psychological characteristics, 16 of which represent the male-trait stereotypes, and 16 of which represent the female-trait stereotypes. In a test situation, subjects were asked to associate...
Proportion data falling in the continuum (0, 1) are very common in practice. It can also happen that an inflated number of zeros (or ones) occur with proportion data. There are extensive studies of zero-inflated data in the literature. Almost all of them, however, focus on zero-inflated count data. Furthermore,...
Graphical models use Markov properties to establish associations among dependent variables. To estimate spatial correlation and other parameters in graphical models, the conditional independences and joint probability distribution of the graph need to be specified. We can rely on Gaussian multivariate models to derive the joint distribution when all the...
Aquifer recharge is generally driven by fluids that move from the Earth’s surface to groundwater through the unsaturated zone, also known as the vadose zone. When the vadose zone is fractured, fluids, which may include contaminants, can move through the fracture network as well as the porous matrix. Such a...
This study examined the impact of a Sex Education Workshop on mothers' responses to their children's sexual questions and behaviors Subjects included 88 mothers equally divided into experimental and control groups. Experimental and control groups consisted of an equal number of mothers from high and low socioeconomic levels. Furthermore, an...
This study documented the influence of the completion agenda on decision-making by community college career and technical education (CTE) deans. Ten career and technical programs deans were identified as the sample for the study. Washington State was selected because of the Student Achievement Initiative that was developed as a completion...
A mathematical model is developed for the analysis of circular
cell bulkheads subjected to gravity loads of cell fill, backfill, lateral
pressure, and surcharge load using the finite element method. The
finite element circular cell model consists of axisymmetric triangular
and/or quadrilateral ring elements for soil and cylindrical shell elements...
An investigation was conducted to determine the impact of economic and
non-economic factors on the off-farm work efforts of Oregon farm husbands and
wives. A total of 283 Oregon farm households (with husbands and wives) were
randomly selected from lists of persons deferring taxes for farm purposes, obtained
from County...
The topic of this study is the cultural impact of the computer in a school. "Impact" is 'defined as the cultural consequences of intended and unintended learning that occur when computers are used in the school. The major theoretical orientations of the work include the concepts of manifest and latent...
End users' programs are fraught with errors, costing companies millions of dollars. One reason may be that researchers and tool designers have not yet focused on end-user debugging strategies. To investigate this possibility, this dissertation presents eight empirical studies and a new strategy-based end-user debugging tool for Excel, called StratCel....
Research suggests that long-term participation in professional development is critical in helping teachers meet the increasing demands of reform efforts and changing practice (Gallucci, 2003; Darling-Hammond, 1995; Little, 1993). Understanding the influence that participation in a community of teachers as a community of practice may have on teachers’ professional growth...
This study investigated factors that influence career choice and
development for gay male school teachers. Ten gay educators
participated in the investigation. Data collection methods involved
two semi-structured personal interviews and one structured telephone
interview for a total of 30 sampling units. Data analysis procedures
included reviewing audiotapes, reading transcriptions,...
Translation of efficacious programs into real-world settings is an important step in ensuring improved public health outcomes. Yet, the process of translating evidence-based interventions (EBIs) according to fidelity is fraught with challenges. Organizational factors, specifically organizational communication, have been shown to influence translation processes.
To date, there is limited research...
The ferromagnetic resonance (FMR) phenomenon serves as a sensitive probe of the effective internal fields in a magnetic material. FMR spectroscopy has consequently become a well-established technique, extensively employed in assessing material properties such as magnetic anisotropy, Landé g-factor, damping parameter, and the magnetoelastic constants of magnetic materials. Determining these...
Sensory properties of four important volatile sulfur compounds, dimethyl disulfide (DMDS), diethyl disulfide (DEDS), methanethiol (MeSH) and ethanethiol (EtSH), were determined in base Oregon Pinot noir wine in order to understand their impacts on wine aroma. Detection thresholds of these four compounds in base wine were determined first. All four...
Developmental mathematics and the completion of degrees have been at the forefront of community colleges in recent years. Positive psychology has given rise to the Broaden-and-Build Theory of Positive Emotions. The purpose of this study is to study the relationship between positive emotions and developmental mathematics achievement at the community...
The composite FRP rebars research at Oregon State University was initiated in
1993 principally to develop a non-metallic hollow reinforcement. It was recognized that
the tensile properties of such reinforcement are unquestionably superior to steel, but its
performance in concrete could be problematic. The bond between FRP rebars and
concrete...
The fungus Nothophaeocryptopus gaeumannii is the causative agent of Swiss needle cast (SNC), a foliar disease of Douglas-fir. Disease is characterized by premature loss of foliage and reduced growth resulting from the inhibition of photosynthesis due to the occlusion of stomata by the ascocarps of N. gaeumannii. Although the disease...
For spatial data visualization, we approach two problems and provide solutions: heat map resolution selection, and heat map confidence interval presentation. Analysts often present spatial data in gridded heat maps, at some chosen resolution. However, many data types vary in density across the domain. We develop variable-resolution heat maps to...
Men are frequently left out of the picture in the study of family planning and sexual risk behavior. This approach means few programs and policies address men's family planning and sexual health issues. There is also a lack of understanding of the role fatherhood plays in men's development and in...
The purpose of this study was to determine if the inferences derived from
the Kingore Observation Inventory as a screening device are sufficiently valid for
the identification of potentially gifted youngsters. Differences in predicting the
WISC-III Full Scale IQ scores and/or percentile ranks using the KOI were
assessed.
The value...
Community and technical colleges in the United States are experiencing an expansion of racial and ethnic diversity in students, faculty, and administrators. From 1996 to 2006, the number of Asian female college students increased 55.3%, from 13,184 to 20,477. The number of Asian male students increased 48.9%, from 9,731 to...
The persistent underrepresentation and marginalization of women of color in the disciplines of science, technology, engineering, and mathematics (STEM) are well-documented. However, much of the existing literature takes an “either/or” approach, focusing solely on the experiences of either “women” or “minorities” in STEM, without adequately examining the unique experiences of...
The Purpose of the Study
The purpose of the study was to gain a better understanding of
the classroom environment by determining if student attitudes are
significantly related to the quantity and characteristics of verbal
interaction. A second concern was to determine if such verbal
interaction could be effectively examined...
Friends benefit both our psychological and our emotional well-being by increasing overall happiness, life satisfaction, and a positive sense of self among women. Often, however, friendships decrease in the later years. The purpose of this study is to learn more about divorced or widowed, retired women and their friendships, specifically,...
It is desirable for complex engineered systems to perform missions efficiently and economically, even when these missions' complex, variable, long-term operational profiles make it likely for hazards to arise. It is thus important to design these systems to be resilient so that they will actively prevent and recover from hazards...
The application of lean to new product development (NPD) processes has been claimed to generate positive impact on NPD performance. There are very few empirical studies, however, on how organizations should apply lean practices or on the exact nature of the impact of lean on NPD performance. To further understand...
The study examined dimensions of the family context associated
with variations in parent involvement and parent perceptions of children's
school achievement using data from 1,085 male and 2,239 female
respondents with a child between the ages of 5 and 18 years collected in the
1987-88 National Survey of Families and...
A copula is the representation of a multivariate distribution. Copulas are used to model multivariate data in many fields. Recent developments include copula models for spatial data and for discrete marginals. We will present a new methodological approach for modeling discrete spatial processes and for predicting the process at unobserved...
In this thesis we develop a theoretical framework for the identification of situations where the equal frequency (EF) or equal variance (EV) subclassification may produce lower bias and/or variance of the estimator. We conduct simulation studies to examine the EF and EV approaches under different types of model misspecification. We...
This thesis is concerned with the development and use of routine
analysis techniques based on chemiluminescence (CL) detection for: 1)
ethanol in gin down to the 0.3% (v/v) level; 2) the antioxidants propyl
gallate and BHA in lard to levels as low as 0.3 and 0.2 mg/L, respectively; 3) pyrogallol...
Critical consciousness (CC) and hopeful future expectations (HFE) are believed to promote positive development in youth who face structural inequalities (Callina et al., 2014; Heberle et al., 2020; Mcwhirter & McWhirter, 2008). Although both CC and HFE hold promise for enhancing the positive development of oppressed youth, gaps in the...
Seventy-two species of Blennocampinae in 21 genera and six tribes
are known from the Nearctic region. The adults and known larvae of
all species and genera are keyed, described and illistrated. A
definition of the subfamily, a review of previous work, a table of
host-plant associations, and a discussion of...
Financial management planning styles were investigated with original data
collected from 180 unmarried, elderly women with a home economics college
background and living alone. Deacon and Firebaugh's (1975, 1988)
household management systems theory, continuity theory from gerontology,
and the construct of anticipatory socialization from sociology framed the
study. Three planning...
The nucleosome appears to be the basic structural unit of the
eukaryotic chromosome. The usual nucleosome preparation, isolated
from a micrococcal nuclease digest of nuclei, is heterogenous in DNA
length and protein composition with some particles containing spacer
DNA and associated protein. This heterogeneity complicated physical
and reconstitution studies. As...
The movement to reform mathematics teaching and learning in schools began in the 1980s. After dedicating vast resources to support reform efforts since then, the transition to improve mathematics teaching and learning in schools has not occurred. In the majority of mathematics classrooms teachers still rely on traditional teaching strategies...
Community engaged scholarship has gained attention as public universities begin to answer calls to return to their roots of serving the public good. The scholars at the heart of community engagement play an important role in this mission, but their experiences in the academy are not well understood. As institutional...