The purposes of this study were to determine
relationships between burnout and selected demographic
and job-related variables and to identify burnout coping
strategies commonly used by teacher-coaches in public
secondary schools. A volunteer sample of 193 teacher-coaches
responded to a three-section questionnaire
composed of the Maslach Burnout Inventory, the Jaloweic...
The purposes of this study were to (a) outline a three-stage
methodology combining functional/conceptual
equivalence, item equivalence, and equivalence in construct
operationalization to investigate the cross-cultural
validity of psychological test instruments, and (b) to
examine the cross-cultural equivalence of the Physical
Estimation and Attraction Scale (Sonstroem, 1978) for
English-speaking and...
The size, shape, and stability of a species’ dietary niche can both influence and reflect a variety of biological patterns, including species interactions, extinction risk, and ecosystem function. This is particularly apparent when dietary changes manifest at ecosystem and clade scales to profoundly affect macroecological and macroevolutionary trajectories. However, many...
Ecology is focused on understanding how organisms interact with each other and their environments, across ecological, spatial, and temporal scales. Thus, understanding how processes and patterns of ecological systems change across space and time is a principle goal for conservation biologist globally. While many approaches exist for investigating the changing...
Building upon Deci and Ryan's (1985, 1991) self-determination theory as well as
previous empirical work on motivation, the present study was designed to develop a
multifaceted 31-item Exercise Motivation Scale (EMS). A series of pilot studies were
first conducted in order to generate the 31 scale items. The EMS was...
Anthropogenic climate change is threatening biodiversity as I currently understand it. There is now a large body of work highlighting species responses, globally, to this threat. Importantly, responses at the species level emerge from responses at lower levels of biological organization (individuals and populations) across a species’ geographic range. For...
Two research studies at the U.S. Department of Energy's Hanford Site and Rocky Flats Environmental Technology Site (RFETS) explore the quantitative relationship between surface contamination, airborne radioactivity, worker intakes, and subsequent dose. In the first study, resuspension factors are developed and evaluated at the U.S. Department of Energy's (U.S. DOE)...
This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
The spectrophotometric titration of the tyrosine residues,
their reaction with N-acetylimidazole, and the effect of pH on the
thermally induced conformational transition of ribonuclease T₁ have
been investigated. The results of spectrophotometric titration in
0.20 M KCl/0.001 M sodium phosphate suggest that titration of the
tyrosine residues occurs in two...
We evaluated anthropometric and performance measures which best predict bone
mineral density (BMD) in 54 adolescent girls (14.6±0.5y; 22.7±14.0 months past
menarche). BMD for the whole body, femoral neck, greater trochanter, lumbar spine (L2-L4), and mid-femoral shaft was assessed using dual-energy x-ray absorptiometry (DXA)
(Hologic QDR 1000/W). Whole body lean...
The purpose of the study was to verify growth in the interpersonal
problem solving abilities of high school students. A fourpart
subtest of the Means End Problem Solving Test (MEPS) was administered
to 642 students grades nine through twelve at Columbia High
School, Troutdale, Oregon. Completed tests were separated by...
Verticillium dahliae Kleb. incites a vascular wilt disease of
mints. Susceptible Mentha piperita L. , resistant M. crispa L.,
and intermediate hybrid 148 were used to study 1) the site of differential
resistance and 2) the role of polygalacturonase (PG) in the
disease syndrome.
Many more V. dahliae propagules were...
The incidence of obesity has increased in the U.S. until an obesity epidemic now exists. American consumers are acutely aware of the consequences of obesity and are increasingly associating the consumption of high-fat foods with having a negative impact upon their health. This has in turn forced producers to grow...
Inferences regarding the biology of extinct taxa are often founded primarily
on cladistically-based phylogenetic hypotheses. However, these inferences are
frequently inconsistent with the morphology and physiology of modern animals. I
suggest that reference to the biology of modern animals might be a more
appropriate tool to aid in the reconstruction...
The purposes of the research presented in this thesis were
to: (l) assess the nutritional status of vegetarian and nonvegetarian
Seventh-day Adventists (SDA), non-SDA non-vegetarians,
and non-vegetarian hormone dependent cancer subjects; (2) determine
the relationship of various blood and urinary biochemical
parameters to dietary intake; (3) determine hormonal status in...
Contemporary parenting strategies tend to involve
parent-child interactions in which the parent neither
repressively dominates the child nor follows a permissive
laissez-faire course but respects the child's dignity as a
person. This paper integrates several current theories of
parenting and parent education into the construct of
"respectful parenting," which is...
Detailed current profiles between the sediment-water interface
and 20 cm above it reveal a viscous sublayer in the bottom boundary
layer on the Oregon continental shelf. Data from three field experiments
are used to test fundamental assumptions about boundary layer
flow in the ocean. The first study, discussed in Chapter...
Species interactions and their effect on the use of habitat by benthic fishes were examined in a guild composed of Cottus perplexus, C. rhotheus, and C. beldingi in the Marys River above Philomath, Oregon, and in a constant environment provided by an artificial stream. In the Marys River system, the...
The Carnegie Ridge is a linear, aseismic, submarine ridge
lying between the Galapagos Islands and the coast of South America.
A 2300 meter deep saddle near 86°W. longitude divides the ridge into
western and eastern segments. Surface ship, near bottom, and grain
size studies from the saddle have been used...
Soils and other resource programs in both public land management agencies and private industry are continually being adapted to the challenges of evolving knowledge and experience in the field of forestry. This dissertation explores new ways of thinking about and using soils information in forest planning and management, with a...
Purpose: The Purpose of this research was to design, implement and evaluate a patient centered asthma intervention pilot program directed by physicians and administered by community pharmacists to a group of Managed Care contracted Oregon Health Plan asthmatics. The evaluation was to determine if the proposed intervention could improve the...
The United States has had a long history of promoting agricultural exports, and the return to conditions of extreme surplus in many agricultural markets in recent years has revived interest in this topic. Some products received imperial bounties during our colonial era, but the systematic collection of trade statistics for...
This qualitative study explores the "coming out" experience of gay males raised in conservative Christian environments. Seven men with varying ethnic and racial backgrounds, between the ages of 20 and 40 years old, participated. Each was raised in a conservative, Christian environment during his formative years and each was now...
Ship turnaround time at a marine containerport is an important
measure of the port's efficiency and attractiveness. Both the speed
and quality of load planning affect the length of turnaround time
considerably. Past attempts at computerizing the load planning
function have been unsatisfactory and have not reflected the port's
objective...
In the United States, falls are the leading cause of unintentional death with one of every three people 65 years and older falling each year. Falls account for approximately 95% of hip fractures among older adults and falls to the side predominate hip fracture related falls in this population. However,...
This study was designed to assess chiorpyrifos exposure of a group of farmers by determining internal dose associated with a given application of this insecticide. This involved the monitoring of urinary levels of 3,5,6 trichloro-2-pyridinol (TCP), the major metabolite of chlorpyrifos. Incidental exposure was evaluated by determining the levels of...
With continual and worldwide human population growth, our impact on the natural environment expands and intensifies every day. We consume natural resources, burn fossil fuels, and release toxic compounds into the air, water, and earth. We build roads that fragment the landscape, construct new settlements, and develop agricultural lands in...
This study compared the effect of two sources of instruction and verbal
encouragement on the participation of individuals with mental retardation (MR) in a 10-week physical activity program. Participants were 17 adult employees of a sheltered
workshop (5 females, 12 males) ranging in age from 30 to 65 years. The...
NADPH-cytochrome P-450 reductase, an important enzyme in the
cytochrome P-450-dependent microsomal monooxygenase system, was
purified from insecticide-resistant (R) and -susceptible (S) house
flies (Musca domestica, L.) and from the black blow fly (Phormia
regina, Weigen). Proteolytic degradation to a P-450 - inactive form
of the reductase was reduced during the...
The purpose of this research was to study the impact
phenomena of a tennis ball striking a hard surface.
Stroboscopic photography was used to collect the ball's
impact images from seven angles of incidence, ranging from
-23 degrees to -70 degrees with zero, top and back initial
spin respectively.
Through...
Sandy beaches and dunes cover approximately one-third of the world’s ice-free coastlines and provide ecosystem services including coastal protection, recreation, wildlife habitat, and carbon sequestration. These dynamic interface habitats are variably shaped by wind, waves, sedimentary processes, and vegetation feedbacks. Positive biophysical feedbacks lead to the formation of vegetated coastal...
Calcium channel blockers (CCB) was studied extensively in cardiology for their tissue
protective effect following myocardial infarction; we hypothesized that administration of
a CCB would interfere with the processes that result in exercise-induced muscle damage
(EIMD) and delayed onset muscle soreness. To investigate the effects of a CCB on a...
Women living in sub-Saharan Africa are more affected by HIV/AIDS than any other population in the world. Two-thirds of all new HIV infections worldwide occur in sub-Saharan Africa and over 60% of these infections are in women. Indeed, 70% of
all women globally who are infected with HIV reside in...
One in four Ecuadorians do not have access to health services; while more than two-thirds have no health insurance and insufficient resources to pay for the health care services they might require. The following three studies examined utilization of health care services using Andersen’s Health Care Utilization Behavior Theory. Secondary...
The aim of the present project was to quantify and compare differences in impact performance and damping effectiveness among various off-road bicycle suspension systems. Two experiments were conducted to compare suspensions. Fork impact performance was tested by measuring peak antero-posterior braking forces and impulses during impact with bumps of 6-...
Although research evidence clearly indicates support surface properties are a major factor contributing to fall risk among the elderly, investigations examining the influence of variations in surface conditions on the postural control of older adults during task performance have been limited. Thus, the primary purpose of the present studies was...
The internal structure of natural fiber composites can be manipulated by controlling the spatial distribution of fiber orientation and internal chemical and thermodynamic conditions during their consolidation. Objects highly tailored to specific service demands may thereby be produced. Techniques to form miniature structural beams from oriented hemp and random wood...
The complexity of forest management has increased with the scope of resources of concern and the level of scrutiny from stakeholders. The design and use of specialized computer software, often referred to as “decision support systems” (DSS), is one method for helping managers deal with this complexity. DSS have proven...
The diverse community of bacteria living within and on host organisms, known as the microbiome, has an important role in maintaining host health. Dysbiosis, known as a change in the healthy community of the microbiome, has been associated with a number of diseases across host organisms and body sites including...
Animal weapons are thought to have evolved to compete for reproductive opportunities within a species. Across the diverse weapon-bearing taxa, several evolutionary trends have emerged: (1) increasing complexity and relative size across ontogeny, (2) sexual dimorphism, and (3) higher levels of random deviations from symmetry (i.e., fluctuating asymmetry) than non-weaponized...
