The purpose of this study of the life and career of Dr. Carl
Leonard Anderson was to recount his professional contributions to
the field of health and relate these to public health and health education. The major emphasis of this study concerned Dr. Anderson's
professional life.
The accomplishment of the...
In a story of his life Les reflects on what he
has gained and what he has lost while seeking success in
the moving and shifting of military and academic life
through homes and schools all over the United States.
He describes himself as between races, languages, and
cultures.
What makes invasive species successful, and how do they affect native populations and communities? I addressed these key questions in the context of the invasion of Atlantic coral reefs by Pacific red lionfish (Pterois volitans). To assess the role of parasites in contributing to the success of this invasion, I...
Full Text:
DISSERTATION OF
Lillian J. Tuttle for the degree of Doctor of Philosophy in Zoology presented on May
27
This study was designed to determine personal and professional
traits of effective and ineffective selected home economics teachers of
sophomore girls and to discover if characteristics of effective and
ineffective teachers varied between large schools of 1,000 or more
pupils and small schools with 500 or fewer students.
A survey...
Hop (Humulus lupulus L. var. lupulus) is a diploid, dioecious plant with an extensive history of cultivation and use in brewing, as a textile, and for its therapeutic properties. Hop is prized for its ability to produce a variety of aromatic and flavor compounds, as well as compounds with anti-microbial...
The present day vegetation pattern of the Willamette Valley is a result of a long past of human alteration of the landscape. Beginning with aboriginal burning of the grasslands to present day land uses, the vegetation of the valley has been affected by anthropogenic activity. Wet prairie is a vanishing...
These essays are an attempt to rebuild memories that explore the nature of work and family. They explore how work knocks against the joints of the body and against the joints between family members, and, as time passes, how the next generation inherits the family line of work only to...
The nutrient intake of forty-five participants in
the Title IIIc Elderly Nutrition Program in rural
Oregon was assessed through 7-day dietary records. The
1980 Recommended Dietary Allowances (RDA) were used to
assess adequacy of intake. There were no
statistically significant differences between the 7-
day nutrient intakes of those who...
What makes invasive species successful, and how do they affect native populations and communities? I addressed these key questions in the context of the invasion of Atlantic coral reefs by Pacific red lionfish (Pterois volitans). To assess the role of parasites in contributing to the success of this invasion, I...
Renewable energy sources are becoming increasingly important due to their low environmental impact and limitless nature. This thesis explores the design of a 250 mW permanent magnet linear generator wave energy converter to power ocean sensors. While many wave energy converters exist, this is a unique application because the wave...
The purpose of this study was to examine the perceptions of
job stressors in student services professionals. The research
procedures examined the functional aspects of a position with
four dimensions of job stressors: role-based stress, conflictresolution
stress, task-based stress, and stress due to the inefficiency
of others. The independent variables...
During the 2006/07 academic year, 582,984 international students studied in the United States (Open Doors Study, 2007). Roughly 430,000 of these international students were pursuing Bachelors or Graduate level degrees. Of the international students that complete degrees, most will return to their home country and will be unable to attend...
L. C. Dunn (1893-1974) spent most of his scientific career conducting research in
developmental genetics as a member of the Zoology Department at Columbia
University in the City of New York. He had an accomplished scientific career
researching mutations in mice, which earned him respect from other geneticists and
scientists....
We use Classical Density Functional Theory (cDFT) to predict the freezing of a Weeks-Chandler-Anderson (WCA) fluid, and construct pressure-temperature and temperature-density phase diagrams. A WCA fluid consists of soft spheres that exhibit the repulsive portion of the Lennard-Jones potential widely used to model the interaction of two neutral atoms. Our...
Records of 889 litters of three populations of swine farrowed
between 1962 and 1973 were analyzed by least squares procedures.
Estimates were obtained for the effects of age and inbreeding of dam,
inbreeding of litter, inbreeding of dam's dam and inbreeding of the
sire of the litter on litter size...
Declines in Greater Sage-Grouse (Centrocercus urophasianus, hereafter sage-grouse) populations could be attributed to low chick survival, which may be influenced by the availability of food and cover at sites used by females rearing broods. Habitat attributes important to broods may vary regionally; thus, it is necessary to understand factors affecting...
The lionfish (Pterois volitans) is a successful invasive predator with large impacts on native fish populations in the western Atlantic. Lionfish predation may affect competition between prey species so it is important to understand whether lionfish display preferences between prey species. I investigated lionfish and native graysby grouper prey preference...
Experiments were performed to determine whether a direct
correlation exists between the growth rates of tall and dwarf peas
grown either in the light or in the dark and endogenous gibberellin
(GA) content. Three separate but related experimental approaches
were utilized: (1) the determination of possible qualitative and /or
quantitative...
One important cool-season perennial grass seed crop grown in Oregon is fine fescue (Festuca rubra L.). Open-field burning has been used for many decades to manage pests, cycle nutrients, and stabilize yield, in fine fescue seed fields, especially as stands age. Legislative restrictions currently limit open-field burning to 6,070 hectares...
A publication containing advice on a wide range of gardening topics, including composting, container gardens, fall/winter gardens, fertilizing, insect pests, plant diseases, planting guidelines, raised beds, site selection, slugs, soil improvement, tilling, warm-season crops, watering, and weeds. Includes regional tips for various parts of Oregon.
The central purpose of this comparison was to determine the
congruence or difference between two teaching techniques, the television
method and the conventional lecture method as used in teaching
General Hygiene on the freshman college level at Oregon State University.
Sub-problems associated with this study were, (a) the development
of...
This study was undertaken as a result of an interest in the
present and future purposes and functions of higher education.
American society and higher education are moving through a period
of change. Since each shapes and is shaped by the other, change in
either may require a review and...
The school-age period is one in which the health status
of the pupil must be constantly observed and appraised
if optimal growth and development are to be realized.
Therefore, Oregon laws provide that the State Board of
Health shall have direct supervision of all matters pretaining
to the preservation of...
The purpose of this study was to compare the effectiveness of
teaching high school health by team teaching and traditional teaching
methods. For this study 114 second-semester sophomore health
students from Centennial High School in Gresham, Oregon were
used, distributed in three health classes as a control group, utilizing
traditional...
The data gathered for the study of the health status of freshmen
at Oregon State University were derived by an analysis of health history
records. These were obtained from the Oregon State University
Health Service. The years sampled were 1930, 1940, 1950 and 1960;
300 freshman male and 300 freshman...
The conceptual foundations of the study emerged from a review of
the literature, suggesting that a serious gap exists between clergy
and laity in terms of ministerial expectations. This gap has been
attributed in part to a growing estrangement between seminaries and
the churches they serve.
Thus, the central problem...
The purpose of this study was to determine if significant differences
in each of the ten Structure of Intellect (SOI) abilities
measured on the SOI Screening Form for Gifted exist between students
perceived by teachers as gifted and identified gifted students
overlooked by teachers. The influence of teacher and student...
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...
The purpose of this study was to compare the number and
type of physical disorders of two hundred educable mentally retarded students and two hundred normal intelligence students. The relationship of physical disorders to sex and age was also investigated.
The descriptive survey method was chosen for the study.
Data...
Limnology is undergoing a transition to high-throughput -omic analysis of freshwater
bacterial communities. An important first step in making the transition is to
characterize several genomes that can be used as references to guide metagenome
assembly and analysis. Here I characterize four new freshwater cyanobacterial
genomes, a pair of lake...
Lincoln City, Oregon is an area of active environmental
processes and increasing development. To reduce conflict, a larger
data base on environmental hazards was required. Previous studies
in the area, remote sensing techniques and. field research were used
to accomplish this end. Within Lincoln City, numerous environmental
hazards were identified...
The recent 2013 Oregon State Board of Agriculture report identified several ways to improve agricultural income in Oregon. Recommendations to improve water development are at the top of the report's list of objectives. In this study, I analyze the relationship between net cash farm income (NCFI) and a cross-sectional set...
This study examines the interactions between the scientific communities of the
Lawrence Berkeley Laboratory (LBL) and the Stanford Linear Accelerator Center
(SLAC) in the discovery of the tau lepton by physicist Martin Perl between 1973-
1977. Perl became interested in searching for heavy leptons through positron-electron
collision experiments using the...
Assessing the risk from exposure to a chemical mixture in the environment can seem prohibitively challenging. Most components of the mixture are not readily identifiable, chemicals may interact to cause other-than-additive toxicity, and the number of potential combinations of environmental contaminants is enormous. These challenges can make it seem impossible...
The sustainable use of natural resources, including the goods and services provided by pasturelands and rangelands, is of growing importance due to climatic uncertainty and population growth. Maintaining high productivity in livestock operations is necessary as land availability diminishes and global populations rise. The potential negative impacts to the environment...
Craneflies of the genus Lipsothrix inhabit decomposing wood in
streams. The life cycles and ecological relationships of L. nigrilinea
(Doane) and L. fenderi Alexander were investigated to determine how they
exploit and respond to the wood habitat and their role in degradation of
woody debris in western Oregon. Surveys of...
There are many links between exposure to environmental pollution and risks to human health. While advances in the fields of toxicology, exposure science, and environmental chemistry have shown light on many of these links, many more research challenges remain. One major challenge is how to accurately characterize the toxicity of...
The importance of active-entry drift at a community-scale
was evaluated by testing whether the placement of wood
in streams affected the abundance of Baetis spp. mayflies in
drift. Baetis were chosen because they use drift as a
behavioral strategy and are important in salmonid diets. The
density of woody debris...
The purpose of this research was to evaluate the
effectiveness of two smoking cessation programs -- one
group and one self-help -- which were developed and are
currently employed by the American Cancer Society.
The research was conducted in a work setting, and
all subjects were employees of the State...
This thesis is a collection of six essays with interconnecting elements and themes. Two overriding themes which pervade the collection are the search for spiritual wholeness and the relationships between humans and their environments. The essays document my recent explorations of and experimentations with the "creative nonfiction" genre. have worked...
Toxicological studies show that oral doses of nickel can cause allergic contact dermatitis, and routes of exposure, such as nickel leached from stainless steel cookware are not well characterized. In this study, four variables: grade of stainless steel, cook time, stainless steel seasoning or cooking cycles, and commercial tomato sauces,...
There are only three fundamental sources for increasing seafood supply: 1) better management and utilization of wild fish stocks, 2) aquaculture and 3) aquaculture-enhanced ‘wild’ fisheries. However, nearly all of the significant growth in global seafood harvest and international trade over the past three decades has, and in the future...
Beginning with the basic equations from the theory of elasticity
and employing a model of crack propagation based on the concept of
a constant plastic energy absorption per unti of crack extension, the
commonly accepted power law of fatigue crack propagation was derived.
This derivation uses an extension of the...
Coastal hazards are the result of numerous physical processes cumulatively causing water levels to flood and erode the land. The waves, storm surges, tides, and run-off contributing to elevated water levels are each the product of chaotic and random weather patterns. These stochastic weather patterns dissipate energy in Earth's climate...
This collection of creative nonfiction essays seeks to examine my expanding consciousness and the people and experiences that have contributed to it. The first essay juxtaposes competitive running and dancing, the second considers how food choices challenge relationships, the third unpacks an implausible friendship while paralleling an Audre Lorde essay,...
This thesis explores the challenges of monitoring stream hydrology in a warmer and wetter climate in the Kenai Peninsula (KP) and Prince William Sound (PWS) region of Southcentral Alaska, located on the traditional territories of the Dena’ina, Ahtna, Alutiiq/Sugpiaq, and Eyak People. The physical and climatological extremes of this region...
Chemicals must be bioavailable for there to be a potential for exposure and consequent risk to human or environmental health. Passive sampling devices (PSDs) are used to quantify the time-integrated concentration of bioavailable contaminants. We demonstrate that PSDs can be paired with the zebrafish developmental toxicity bioassay to produce site-specific,...
Escape from parasites in their native range is one of many mechanisms that can contribute to the success of an invasive
species. Gnathiid isopods are blood-feeding ectoparasites that infest a wide range of fish hosts, mostly in coral reef habitats.
They are ecologically similar to terrestrial ticks, with the ability...
Urban rivers with a history of industrial use can exhibit spatial and temporal variations in contaminant concentrations that may significantly affect risk evaluations and assessment of remediation efforts. To more effectively estimate human and ecological health risks, we evaluated the spatial and temporal distribution of polycyclic aromatic hydrocarbons (PAHs) in...
Gamma irradiation survival curves of Salmonella enteriditis,
Salmonella paratyphi A, Salmonella cholerasuis, Salmonella
pullorum and Streptococcus pyogenes were determined in crabmeat
and in Hartsell's broth. The survival pattern of Staphylococcus
aureus in crabmeat was also determined.
A "tailing off" was found in the survival patterns of
Salmonella paratyphi A, Salmonella...
The major purpose of the study was to compare reverse transfer
students and four year college students for attitude toward
mother, father, and both parents. A secondary purpose was to
collect demographic data on the reverse transfer students.
The experimental and control groups were chosen from the
winter term enrollment...
The eruption of Mt. St. Helens provided the
opportunity to study secondary production of grazing insects in the context of disturbance. Two stream sites were chosen that significantly differed in how their
watersheds were impacted by the eruption. Clearwater Creek was catastrophically disturbed (physical alteration of habitat, loss of riparian...
Pseudomonas syringae is a Gram-negative bacterium that can infect a variety of important crops. Infection by P. syringae is dependent on a type III secretion system (T3SS) that delivers effector proteins to plant cells to suppress host defenses. Previous work has shown that, in the presence of simple sugars, specific...
Purpose of the Study:
The School Health Fair is an experiential method used to supplement classroom theory in a teacher preparation course at the University of Wisconsin-La Crosse (UWL). The purpose of this study was to determine how this method affected student attitude toward teaching. The following null hypotheses were...
The purpose of this study was to evaluate the professional
preparation of teachers of health in selected Oregon high schools.
The accomplishment of this problem was dependent upon (1)
determining the standards or content areas for professional education
of all high school health teachers and (2) determining the
present professional...
This thesis is the first of three sections in what will be a book-long project of creative nonfiction essays. The book will parallel the author's diary with three other family diaries, spanning four generations. This thesis deals with the first of those diaries, written by Antonio Bonetti's, the author's great-grandfather....
Violence and voice seem to be related. In this thesis I detail personal experiences with violence, and then put them into the context of research done about the ways in which violence affects the writing voice, as well as the speaking voice. Helene Cixous' writings about the writing voice and...
This thesis is a collection of essays about Paxton, a
small town in western Nebraska, and an exploration of the
contradictions and complexities found there. It is also a
reflection on the layers of history and connections that
exist not only among families that have lived in these towns
for...
This thesis is a work of literary non-fiction. It
is divided into six sections. The first, "A Sense of
Place," and the last, "Pulling a Geographical," are
collage essays which establish and then reiterate major
themes in the work: movement, work, geography,
climate, people, and education--some curricular, some
not. The...
In this creative non-fiction thesis, the author reads her own life, suggesting that she believes in the details of experience and knows truth in and through experience even though the truth is not always clear. The first chapter includes several narratives from her childhood experience. In the second chapter, the...
Passive sampling devices (PSDs) were used to measure air vapor and water dissolved phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) at two different environmentally contaminated sites. Environmental contaminates like PAHs and OPAHs are present in both the atmospheric and aqueous environmental compartments. It is known that...
Dedicated to the preservation and promotion of many of the nation’s most threatened and endangered species, the W.L. Finley National Wildlife Refuge is highly invested in the management of some of the last remaining upland prairies once prevalent throughout Oregon's Willamette Valley. More than a century of land fragmentation, fire...
_____________________________________________________________________
AN ABSTRACT OF THE THESIS OF
Jona L. Ensley for the degree of Master of Science in
Wood debris serves an important substrate for macroinvertebrates in streams. Particle size reduction due to feeding and other activities can be an important role of the fauna in wood degradation. In this study the Ephemeroptera associated with wood were investigated, with the objective of assessing their impact in the degradation...
The seasonal distribution of bioavailable organochiorine contaminants in surface
water and the potential environmental factors influencing their bioavailability were
evaluated. The study was carried at the lower Willamette River at Portland Harbor, Oregon
where surface water runoff varied according to season. Bioavailable water concentrations of
DDTs and PCBs were determined...
Throughout their lifetime individuals are exposed to complex mixtures of chemicals. The study of chemical mixtures is an internationally recognized research priority, but seemingly complex challenge. To reduce the intricacy of studying mixtures, researchers have identified different prioritization methods based on exposure or the toxicity of chemicals. However, understanding the...
The purpose of the study was to provide quantitative information on the utilization and processing of leaves and needles by several species of caddisfly larvae.
Field and laboratory studies were conducted on three species of Lepidostoma Rambur (Lepidostomatidae), from Willamette Valley and Cascade Mountain streams, and on Clistoronia magnifica (Banks)...
Mount Hood National Forest provides opportunities for many forms of outdoor recreation. Recreationists spend money to pursue outdoor activities on public lands such as national forests and national parks. The purpose of this study was to measure the economic contribution of national forest visitor expenditures on the local economy of...
Core samples from five sites in the Yaquina and Coos Estuary
were assayed for vertical distribution of total sulfides, percent
volatile solids, redox potential, particle size, total aerobic and
sulfate reducing bacteria. Higher total sulfide levels were found at
sites having more than four percent volatile solids, redox potential
below...
A method has been presented for the observation of a large
number of enterotoxin A producers. Production of a relatively concentrated
toxin is achieved by the sac culture method. Further concentration,
if needed, is carried out by PM-10 membrane ultrafiltration
after centrifugation. The work is further improved by
trypsinization of...
Hand-defoliation was evaluated for its ability to
simulate herbivory by cinnabar moth larvae, Tyria
jacobaeae (L.) (Arctiidae) on the weed tansy ragwort,
Senecio jacobaea L. (Asteraceae). The evaluation was done
on a field population of flowering ragwort, for three
different timings (early, middle, and late season) of
damage.
In the...
Orchardgrass (Dactylis glomerata L.) is an important seed crop, but unlike other cool-season perennial grass seed crops such as perennial ryegrass (Lolium perenne L.) and tall fescue [Schedonorus arundinaceus (Schreb.) Dumort.], seed yields have not increased over time so there is considerable room for improvement. Research suggests that plant growth...
Protection of the quality and integrity of food supplies is of global concern. Crops can accumulate non-nutritive and sometimes toxic metals and metalloids. Accumulated metals/metalloids can come in part, from fertilizers, which may contain variable levels of non-nutritive metals or metalloids such as arsenic (As), cadmium (Cd), lead (Pb), nickel...
Disc gel electrophoresis of the vegatative cell -free extracts ofstrains of Clostridium botulinum types A, B, C, E, and F and therelated nontoxic group showed limited value as a means for identifyingthese closely related microorganisms, since separation,though not consistent in all cases, could only be based on the numberof protein...
The purpose of this study was to develop means to facilitate
the detection of staphylococcal enterotoxin and to elucidate factors
that influence enterotoxin formation. It was found that semipurification
flat-gel electrophoresis in a water-cooled apparatus
was more efficient than CM-cellulose and Sephadex column chromatography
currently used to separate toxin from...