When making policy recommendations, the North Pacific Fishery Management Council balances community stability with efficiency in resource utilization. The Council is considering an action that, for part of the year, would effectively limit the harvest of Aleutian Islands Pacific cod to vessels that deliver to a shore plant in the...
This dissertation explores the real world problem of rural youth out-migration and finds that the central problem is one of persistent class difference in this rural Oregon town. The research that informs this dissertation was conducted in a rural community of approximately 2300 residents in Eastern Oregon, here called Talltown....
The purpose of this study was to understand how refrigeration, heating, ventilation, and air conditioning (RHVAC) service technicians (techs) learned from troubleshooting. This understanding resulted in instructional and curricular strategies designed to help community colleges prepare vocational students to learn more effectively from informal workplace learning. RHVAC techs were studied...
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...
The purpose of this study was to understand the impact of faculty-to-faculty mentoring programs on the experiences of both mentors and first-year instructor protégés in Career and Technical Education (CTE) programs with an emphasis on practitioner-educators in nursing and in welding-fabrication. The study was undertaken for four reasons: (a) increases...
The purpose of the study was to determine whether first-grade
children's participation in a counselor-led intervention strategy, Mother-Child
Communication Training (MCCT), would increase their responsible
behavior, as assessed by mothers and teachers. Sixty first-grade children
in one elementary school in Corvallis, Oregon, along with their mothers,
participated in the training...
School-aged children with disabilities have difficulty in meeting current physical activity guidelines (Stanish et al., 2019). As such, there is a need for providing effective physical activity promotion programs for school-aged children with disabilities. School settings can be the right place to promote physical activity for children with disabilities because...
The purpose of this study was to improve instructional system design at Small
Business Development Centers by developing a best practice model for assessing client
training needs. Two research questions were addressed:
1. Is self-directed learning an appropriate framework for instructional system design at
Small Business Development Centers?
2. What...
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...
In 2014, the California Current (~28˚–48˚N) saw average, or below average, coastal upwelling and relatively low productivity in most locations, except from 38˚–43˚N during June and July. Chlorophyll-a levels were low throughout spring and summer at most locations, except in a small region around 39˚N. Catches of juvenile rockfish (an...
In a population of the European common toad Bufo bufo from a rural pond in the region of Lake Glubokoe Regional Reserve in Moscow province, Russia, unexplained mass mortality events involving larvae and metamorphs have been observed over a monitoring period of >20 yr. We tested toads from this and...
This document provides the abbreviated program grid showing a one-page summary of presentations made at the NAAFE Forum 2015, Economic Sustainability, Fishing Communities, and Working Waterfronts, held in Ketchikan, Alaska, May 20-22, 2015. The conference was organized by Keith Criddle and Quentin Fong, University of Alaska Fairbanks, School of Fisheries...
"Rationalization” or the change to catch share management in fisheries has been shown to lead to the slowing of fishing activity, input and effort consolidation, cost savings, as well as new market and product development. The effects of rationalization on fishermen’s behavior become more complex when one accounts for the...
Prevention of wellbore CO₂ leakage is a critical component of any successful carbon capture, utilization, and storage program. Sporosarcina pasteurii is a bacterium that has demonstrated the potential ability to seal a compromised wellbore through the enzymatic precipitation of CaCO₃. Here we investigate the growth of S. pasteurii in a...
This paper discusses the fundamentals of a novel hybrid method to synthesize oxide dispersion strengthened (ODS) 304 L stainless steel (SS) alloy using a modified laser powder bed fusion (LPBF) machine. Previously, ODS metal matrix composites have been produced by LPBF via ball-milling, which is expensive to scale. Here, we selectively...
The purpose of this thesis is to argue that LeBron James’ expressions of activism are, in many ways, perceived as insincere, hypocritical or disingenuous to his followers on the social media platform Twitter. Using the theoretical framework of Affect Theory and Plutchik’s wheel of emotions, a close reading was conducted...
Monophyly of the gomphoid-phalloid clade was confirmed based on multigene phylogenetic analyses. Four major subclades (Hysterangiales, Geastrales, Gomphales and Phallales) were also demonstrated to be monophyletic. The interrelationships among the subclades were, however, not resolved, and alternative topologies could not be rejected statistically. Nonetheless, most analyses showed that the Hysterangiales...
Vegetative propagation allows the amplification of selected genotypes for research,
breeding, and commercial planting. However, efficient in vitro regeneration and
genetic transformation remains a major obstacle to research and commercial
application in many plant species. Our aims are to improve knowledge of gene
regulatory circuits important to meristem organization, and...
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cells
located at the Central Zone (CZ) in both shoot apical meristems (SAM) and root apical
Gammaherpesviruses (GHVs) have been identified in many species and are often associated with disease. Recently, we characterized three novel felid GHVs in domestic cats, bobcats, and pumas. In this study we sought to determine whether free ranging ocelots (Leopardus pardalis) and bobcats (Lynx rufus) are infected with additional GHVs. We...
Anthropogenic and natural stressors often interact to affect organisms. Amphibian populations are undergoing unprecedented declines and extinctions with pesticides and emerging infectious diseases implicated as causal factors. Although these factors often co-occur, their effects on amphibians are usually examined in isolation. We hypothesized that exposure of larval and metamorphic amphibians...
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Environmental Studies, Sam Houston State University, Huntsville, Texas,
United States of America, 2 Department
Alcoholic liver disease (ALD) continues to be one of the major public health problems in the United States and worldwide. Complicated by factors including gender, polymorphisms of alcohol-metabolizing enzymes, immunologic factors, exposures to other substances/drugs, hepatic viral infections, nutritional deficiencies, and obesity, ALD is a complex disease that requires a...
Most wild animals face concurrent challenges by multiple
infectious organisms, and immunological responses triggered by
some parasites may increase susceptibility to other infectious agents.
Immune-mediated interactions among parasites have been investigated
among individuals in a population, but less is known about
broader comparative patterns. We investigated the “macro-micro facilitation
hypothesis”...
Expression Atlas (http://www.ebi.ac.uk/gxa) provides information about gene and protein expression in animal and plant samples of different cell types, organism parts, developmental stages, diseases and other conditions. It consists of selected microarray and RNA-sequencing studies from ArrayExpress, which have been manually curated, annotated with ontology terms, checked for high quality...
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, Drashtti Vasant and Catherine Leroy for their assis-
tance in enriching EFO in terms needed to describe sam
Solution deposition offers an attractive, low temperature option in the cost effective production of thin film solar cells. Continuous microreactor-assisted solution deposition (MASD) was used to produce nanocrystalline cadmium sulfide (CdS) films on fluorine doped tin oxide (FTO) coated glass substrates with excellent uniformity. We report a novel liquid coating...
Humans have a desire for a connection among others, and they also have a desire for both giving and receiving affection, regardless of class, age, gender, cultural or religious backgrounds. There is a plethora of research on the health benefits for both giving and receiving affection in romantic and family...
Three provisional species are described as new: Leucogaster
couchii, L. gelatinosus, and L. microsporus. Leucophlebs candida
is transferred to Leucogastef, completing the transfer of all
Leucophlebs species to Leucogaster. L. columellatus is transferred
to Sclerogaster. L. longisterigmatus is synonymized with
L. rubescens, L. foveolatus with L. odoratus, and L. fulvimaculatus...
Childhood obesity has increased dramatically over the last several decades, particularly in industrialized countries, often accompanied by acceleration of pubertal progression and associated reproductive abnormalities (Biro et al., 2006; Rosenfield et al., 2009). The timing of pubertal initiation and progression in mammals is likely influenced by nutritional and metabolic state,...
During the course of ripening, Cheddar cheese frequently develops
a flavor defect described as fruity. Recent work has indicated
that the use of certain starter cultures ultimately results in the
development of the defect as the cheese ages. The flavor compounds
responsible for the defect, however, have not been elaborated....
Malt, wort and beer samples representing a single
pilot brew were extracted from Celite columns with Freon
114. Total extracts were analyzed by gas
chromatography/mass spectrometry. Compounds were
identified that were unique or common to beer, wort or
malt and quantities present were determined for those
common to the three...
Recent years have been marked with increasing rates of corporate scandals, environmental disasters, and unfair labor practices, drawing attention to the importance of corporate social responsibility (CSR). Despite increasing efforts in CSR, past research has shown increased levels of mistrust and skepticism from consumers towards business. Furthermore, the very issues...
Native bees are critically important organisms that support biodiversity and crop production via their pollination services. Wildfires in temperate conifer forests can increase bee abundance and flowering plant density due to increased light exposure, but little information is available regarding how wildfire severity influences provisioning to bee offspring, which is...
We present the results of a study of optical scattering and backscattering of particulates for three coastal sites that represent a wide range of optical properties that are found in U.S. near-shore waters. The 6000 scattering and backscattering spectra collected for this study can be well approximated by a power-law...
We examined the distribution of Umpqua Chub Oregonichthys kalawatseti, an endemic, vulnerable minnow in western Oregon, and whether six ecological populations (based on distribution patterns) had sufficient genetic cohesion to be considered evolutionary populations. We also evaluated the influence of Holocene geological events and recent nonnative predator introductions on the...
The purpose of this study was to explore the possible relationship among fashion media, the social responsibility agenda of the Audubon Society, and the use of birds in millinery in the late nineteenth and early twentieth centuries. Both the content analysis method and the historic method were used to gain...
Children’s behavioral self-regulation and executive function (EF; including attentional or
cognitive flexibility, working memory, and inhibitory control) are strong predictors of
academic achievement. The present study examined the psychometric properties of a
measure of behavioral self-regulation called the Head-Toes-Knees-Shoulders (HTKS) by
assessing construct validity, including relations to EF measures, and...
'Marion' blackberry is known for having excellent aroma and flavor, yet they are susceptible to damage by freezing and they are very thorny. Thornless blackberry cultivars have been developed and show great potential. Thus, the interest of the study was in determining which of eight thornless blackberry cultivars, have similar...
Endophytic fungi (A. coenophialum and A. lolii) which infect grasses produce ergot alkaloids that serve as the grasses' chemical defenses and enhance the vigor of the grass. Turf-type tall fescue with high endophyte levels has been deliberately developed to produce a greener, more vigorous, pest-resistant turf. Consumption of endophyte-infected grass...
To determine how well DNA barcodes from the chloroplast region perform in forest dynamics plots
(FDPs) from global CTFS-ForestGEO network, we analyzed DNA barcoding sequences of 1277 plant
species from a wide phylogenetic range (3 FDPs in tropics, 5 in subtropics and 5 in temperate zone)
and compared the rates...
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species (excluding repeated species), comprising sam-
ples with a high-quality sequence for at least one
Phytophthora infestans causes potato late blight, an important and costly disease of potato and tomato crops. Seven clonal lineages of P. infestans identified recently in the United States were tested for baseline sensitivity to six oomycete-targeted fungicides. A subset of the dominant lineages (n = 45) collected between 2004 and...
A 2x2 factorial experimental design with 2 replications was
used to study the effects of a combination of electrical stimulation
and delayed chilling of pre-rigor muscle on meat characteristics.
Twenty Standard and Good grade beef cattle were slaughtered and 5
carcasses were assigned to each of the 4 treatments. Meat...
Eliminating physical activity disparities among ethnic minorities in the U.S. is important. Cultural differences have been found to be plausible contributing factors associated with such disparities. Therefore it is important to investigate and understand the mechanisms by which diverse aspects of cultural experiences affect physical activity participation among ethnic minorities,...
Dynamic marine environments can shape complex spatial and temporal patterns in the population connectivity of marine species, and this is often exemplified in species with long larval phases. Here, we used a genotyping-by-sequencing (GBS) approach to examine fine-scale spatial and temporal genomic variation among Dungeness crab Cancer magister larval recruits...
Purpose: Children with Down syndrome (DS) may have limited opportunities to engage in independent mobility at the same age as their typically developing peers due to motor delays. The primary purpose of this study was to examine two activity-oriented outcomes - (1) onset of independent driving, and (2) onset of...
Plasma concentrations of cortisol, a glucocorticoid hormone that
is immunosuppressive in mammals, increase during stress and
smoltification of salmonids. There was a reduction in the ability of
lymphocytes to generate antibody producing cells (APC) in vivo
concurrent with increased plasma cortisol titers during smoltification
of coho salmon (Oncorhvnchus kisutch). Cortisol...
This experiment is concerned with sampling submicrometer
particles in near sonic and supersonic flows.
The study employed a high volume condensation aerosol
generator to produce stearic acid particles having a
geometric mean diameter of 0.8 μm and a geometric
standard deviation of 1.28. The aerosol was diluted
with dry air...
Most pathogen detection tests are imperfect, with a sensitivity < 100%, thereby resulting in the potential for a false negative, where a pathogen is present but not detected. False negatives in a sample inflate the number of non-detections, negatively biasing estimates of pathogen prevalence. Histological examination of tissues as a...
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significant constraint if sam-
pling is lethal, something of great importance when lethal take involves
Field surveys were conducted by collecting soil samples to estimate
nematode densities in soil from winter wheat, spring wheat, spring
barley, and spring legumes (lentil, chickpea, and pea) fields during
2010 and 2011. Pratylenchus spp. were observed in 60% of sampled
fields. However, nematodes were detected in nearly all of...
Federal policies in the US strongly emphasize reducing hazardous fuels at the Wildland Urban Interface (WUI). However, these areas present restoration challenges as they often have exotic weeds, frequent human disturbance, and the presence of roads. Understanding seed banks is important in planning for desirable post-disturbance community conditions, developing integrated...
The introduction of non-native species can negatively impact native species through reduced genetic fitness resulting from hybridization. The lack of spatiotemporal data of hybrids occurrences makes assessing hybridization risk difficult. Here, I developed a spatially-explicit GIS Hybridization Risk Model (HRM) between native ESA-listed Bull Trout and introduced Brook Trout by...
In apples, the rapid changes occurring in fruit metabolism when approaching maturity affect their quality at harvest and after storage. The interest in the newly introduced cultivars, 'Gala', 'Braeburn' and 'Fuji' has initiated the following study on maturity indices and storage in the conditions of the Pacific Northwest. 'Gala', 'Braeburn'...
The tendency for certain single- and mixed-strain lactic
starter cultures to develop a fruity and/or fermented off-flavor
in ripening Cheddar cheese was traced to certain strains of
Streptococcus lactis in the starter. A very intense fruity and/or
fermented flavor developed in experimental cheeses when one particular
S. lactis strain was...
African-born population is one of the fastest growing group in the United States. Very little is known about their socio-demographic characteristics, health behavior practices and long-term health. The purpose of this study was to examine hypertension prevalence, health behavior practices and the impact socio-demographic factors have on these outcomes among...
BCL11B is a transcriptional regulatory protein that plays essential roles during mouse embryonic development. BCL11B is expressed and functions in the immune and nervous systems as well as within ectodermal organs. Multiple studies have characterized the roles of BCL11B in T cells, brain, and skin. However, very little is known...
Recent studies have suggested that the marine contribution of methane from shallow regions and melting marine-terminating glaciers may have been underestimated. Here we report on methane sources and potential sinks associated with methane seeps in Cumberland Bay, South Georgia's largest fjord system. The average organic carbon content in the upper...
During the beginning of the postpartum period, 80 to 100% of lactating dairy cows have bacterial contamination within their uteri. Presence of uterine bacteria may contribute to increased number of days open and services per conception within these cows. Expulsion of uterine contamination is crucial for uterine involution and reproductive...
Callipyge (CLPG, n=16) and normal (N, n=11) lambs were
produced from Polypay dams and Dorset sires heterozygous for
the CLPG gene to study the effects of the gene on growth and
carcass and meat quality parameters. CLPG lambs had higher
average daily gain than N lambs (0.26 vs 0.23 kg/day,...
Using phenolic scavengers different methods were examined to determine the optimum conditions for extracting polyphenol oxidase (PPO) from d'Anjou pears. Efficiency of the extraction was evaluated based on browning of the extract, PPO activity per g of pear tissue, absorption scan of 410 nm to -240 nm, and the isozyme...
American Indians and Alaska Natives have disproportionately high rates of diabetes, and it is not known if perceived medical discrimination is associated with diabetes health measures and poorer health for this population. This study examined the
effect of perceived medical discrimination (PMD) in American Indian women on health care decisions,...
Pacific cod (Gadus macrocephalus) is an important species, both economically and ecologically in the Bering Sea and Aleutian Islands (BSAI). However, little is known about its spawning dynamics. To address this knowledge gap, I developed a gross anatomical maturity key for Pacific cod to assess temporal and spatial patterns of...
Severe weather in the United States causes huge insured losses to crop and property frequently.It creates major impact and elicit diverse response in the weather insurance industry. Events like hail, storm, hurricane etc. are more likely to cause catastrophe losses. So it becomes crucial to collect and analyze these extreme...
The 1995/96 reintroduction of gray wolves (Canis lupus) into Yellowstone National Park
after a 70 year absence has allowed for studies of tri-trophic cascades involving wolves, elk
(Cervus elaphus), and plant species such as aspen (Populus tremuloides), cottonwoods (Populus
spp.), and willows (Salix spp.). To investigate the status of this...
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(Ripple
and Beschta, 2007b; Halofsky and Ripple, 2008a). Our aspen sam-
pling design defined four
The Leguminosae has emerged as a model for studying angiosperm plastome evolution because of its striking diversity of structural rearrangements and sequence variation. However, most of what is known about legume plastomes comes from few genera representing a subset of lineages in subfamily Papilionoideae. We investigate plastome evolution in subfamily...
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structure and gene content of the ancestral angiosperm plastome, but, like other sam-
pled legumes, they
INTRODUCTION: Between 2004 and 2010, the number of home births in the United States rose by 41%, increasing the need for accurate assessment of the safety of planned home birth. This study examines outcomes of planned home births in the United States between 2004 and 2009.
METHODS: We calculated descriptive...
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risk profiles. Low-risk women in this sam-
ple experienced high rates of normal physiologic birth and
Background:
New strategies to combat the global scourge of schistosomiasis may be revealed by increased understanding of the mechanisms by which the obligate snail host can resist the schistosome parasite. However, few molecular markers linked to resistance have been identified and characterized in snails.
Methodology/Principal Findings:
Here we test six...
Parasites and pathogens influence the size and stability of wildlife populations, yet many population models ignore
the population-level effects of pathogens. Standard survival analysis methods (e.g., accelerated failure time models)
are used to assess how survival rates are influenced by disease. However, they assume that each individual is equally
susceptible...
Major emphasis of this research study involved the evaluation
of nutrient transport by overland flow. Samples gathered at various
distances relative to a swine-waste spray irrigation system were
used for the nutrient evaluation.
As a result of this study, the following conclusions are made:
1. It is improbable that the...
Through a joint effort by the Swiss Federal
Institute for Reactor Research and Oregon State
University, the fuels modeling code SPECKLE is being
developed to model sphere-pac mixed carbide nuclear fuel.
Major parameters, such as fission gas release, fuel
restructuring phenomena, and the temperature and porosity
distributions in the fuel...
Little is known about how people living with HIV in low prevalence contexts face the challenges of stigma and
discrimination. Low prevalence and rural communities are unique environments in which HIV-related stigma
and discrimination may be intensified due to lower tolerance of differences among people and greater fear of
HIV....
The purposes of this paper are to present the results of an experimental effort to measure the level swell in an air/water system and to generate a methodology for determining the volume-averaged void fraction within the Oregon State University (OSU) Advanced Plant Experiment (APEX) Test Facility. The results were then...
Timber supply from Washington State may be reduced by non-industrial private forest owners' diverse purposes for holding timberland, which is a concern since they control 38% of Washington forestland. This study is an exploratory analysis of the effect of land and human infrastructural characteristics on landowners’ likelihood to harvest, precommercially...
During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food
items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in oldgrowth
forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor
for truffle diggings...
During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food
items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in old-growth
forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor
for truffle diggings...
Published December 1917. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1972. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The purpose of this study was to assess the effectiveness of a
training program designed to assist Thai junior high school science
teachers in asking a larger number of higher cognitive level
questions, extending wait-time following a question, and decreasing
the amount of teacher talk during classroom instruction.
Sixty-two junior...
The purpose of this study was to examine how faculty curriculum committees from different disciplines moved through a major curriculum change process from content-focused curriculum to outcomes-based curriculum. Data was gathered through direct observations, committee member interviews, a questionnaire, and the Gregorc Style Delineator from four curriculum committees representing different...
Unmanned aerial vehicle (UAV) technology has grown out of traditional research and military applications and has captivated the commercial and consumer markets, showing the ability to perform a spectrum of autonomous functions. This technology has the capability of saving lives in search and rescue, fighting wildfires in environmental monitoring, and...
Cyprinid herpesvirus 3 (CyHV-3), commonly known as koi herpesvirus (KHV), is a member of the Alloherpesviridae and is a deadly pathogen for koi and common carp, Cyprinus carpio. It causes severe gill necrosis and nephritis, dermal ulceration and hemorrhage, and mass mortality of up to 100% of affected fish. Fish...
Five genotypes from California (Ventana, Caniarosa, San Miguel, 13G97, and Venice) and Oregon (Totem, Puget Reliance, Puget Summer, Hood and Independence) were evaluated for quality. The volatile compounds were analyzed using head space solid phase micro extraction-gas chromatography-flame ionization detection (GGFID) and gas chromatography-mass spectrometry (GC-MS). Odor activity values of...
Extensive volcanic fields on the western Arabian Plate have erupted intermittently over the last 30 Ma following emplacement of the Afar flood basalts in Ethiopia. In an effort to better understand the origin of this volcanism in western Saudi Arabia, we analyzed ³He/⁴He, and He, CO₂ and trace element concentrations...
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followed general techniques outlined in Loewen and Kent (2012). Sam-
ples were ablated using a 30 μm spot
A series of in vitro laboratory trials and in vivo
sheep digestion trials were used to evaluate aerobically
or anaerobically fermented perennial ryegrass straw.
The laboratory trials consisted of a silage study, where
mini-silos were used in a 9 X 2 factorial design with
nine levels of whey (0 to...
A topic of concern for feminists, film critics, media researchers, and film scholars
alike who believe in a causal connection between film violence and real life violence have
found an enemy in the slasher film. Critics of slasher films, a subgenre of horror, often
charge these films are uniquely violent...
Published January 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog