Oregon State University swine herd records of four genetic
groups were analyzed to determine: (1) the association of occurrence
of a small litter (≤ 7) at birth with size of subsequent litters
for gilts and sows, separately; (2) the effect of parity, genetic background
and litter size on mean birth...
Leadership, organizational structure, and communication/interpersonal relations are key functions studied. Evaluation of the Interior Columbia Basin Ecosystem Management Project (Project) considers how well those factors were managed by Forest Service and Bureau of Land Management in a bioregional assessment during a period from November, 1994 to November, 1995. Exploration of...
At the macroscopic scale, we have pumps that use the classical laws of physics to move liquids at a well defined rate. In the microscopic world, physicists are exploring pumps that make use of quantum mechanical behavior to build analogous pumps for quantum particles. The importance of such “quantum pumps”...
Interest in organizational culture has grown enormously over the last twenty years and much
effort has gone into investigating the relationship between organizational culture and
performance. Because most research to date has focused on large organizations, we chose to
investigate the culture in a community bank undergoing a cultural transformation....
Laser Powder Bed Fusion (LPBF) is a process commonly used to create additively manufactured metal parts. The flexibility and complexity allowed by the LPBF process provides opportunity for significant advancement in multiple industries as parts can be customized in shape and function for specific needs. These benefits can be compounded...
As remote sensing data continues to proliferate, development and assessment of methods that generate predictions of forest attributes is needed to inform operational use. For several decades, lidar data collected from aerial platforms has informed assessments of forest resources, but many opportunities remain for the technology. We examine and develop...
The addition of exogenously supplied hydrogen stimulates PCP reductive
dechlorination and increases bacterial growth. While research focuses mainly on
pure cultures, few exist capable of aryl reductive dechlorination, and few markers
exist to identify reductively dechlorinating bacteria within mixed cultures.
Furthermore, most active bioremediation projects stimulate mixed cultures of native...
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...
Phytoplankton initiate the marine carbon cycle by fixing carbon dioxide into biologically available compounds. These abundant single celled organisms mediate carbon flux from the atmosphere to the deep ocean and are the base of the marine food web, supplying new carbon to higher trophic levels. Phytoplankton are highly diverse and...
Older and part-time students are enrolling in institutions of
higher education in increasing numbers, yet little research has
been conducted to see if these students perceive the campus
environment differently from younger, full-time students.
The purpose of this study was to compare the perceptions of
the college environment of four...
Photobiological hydrogen production from live cells of the cyanobacterium Synechocystis sp. PCC 6803 encapsulated in silica gel was investigated. Hydrogen is a dense energy carrier with potential to reduce dependence on fossil fuels, provided a renewable and sustainable means of production can be achieved. Under certain conditions, Synechocystis sp. PCC...
During the depression era, millions of Americans listened to the weekly radio
addresses given by Father Charles Edward Coughlin. He devoted his career to
speaking out against the evils of America and felt it his duty to warn Americans
against the perpetrators of this evil. But after 1934, the tone...
The development of a continuous and reliable cooling method for computer chips is an evolving subject requiring continuous research in both computer science and thermal management. Two-color laser induced fluorescence (LIF) provides a non-invasive way to investigate electronics cooling fluid behavior. Dielectric fluids are of particular interest as they allow...
Most studies suggest that LGBTQ+ young adults make up between 20 and 40 percent of the houseless young adult population (Edidin, Ganim, Hunter, and Karnik 2011; Nolan 2006). However, LGBTQ+ young adults compose only 1.3–3.8% of the general young adult population (Rosario, Schrimshaw, and Hunter 2012). Thus LGBTQ+ young adults...
One's ability to determine the cause and effect nature events is important for navigating within the social realm. However, the ability to determine these relationships is not always as clear. According to Weary and Edwards (1996) causal uncertainty (CU) is the result of an individual perceiving themselves as someone who...
Synthesizing perspectives from Bruner (1957), and the Mind Only School of Buddhism, the current study examined the effect of a persons’ own behavior on knowledge activation. Both social cognitive psychology and the Mind Only School posit that perception is based on previously learned knowledge. Knowledge is accumulated through an individual’s...
THE PROBLEM. The problem was to study the recreation resource-
user and to determine attitudes, characteristics and relationships
between selected variables common to these users.
PURPOSE OF THE STUDY. The purpose of the study was to
examine:
1) Who are the recreation resource-users of the Bend Ranger
District, Deschutes National...
The purpose of this paper is to provide, at a basic level,
product layouts for an order picking warehouse that will minimize
average order picking time. A statistical model is developed to
ensure that optimal results rather than just 'good' results are
obtained. It is shown that simple but general...
Like rural residents in other places, people in rural Oregon have expressed concern about the demographic shifts occurring in their communities. Principally they are concerned about youth leaving and not returning. This analysis uses recent Census Bureau data to describe, in detail, the demographic changes occurring in rural Oregon. Particular...
As the Internet has radically changed modern life, much attention has been paid to the outcomes produced by the diffusion of online access. In the modern economy, reliable Internet access is a crucial tool offering better access to information and opportunities, increasing work efficiency, and facilitating personal connection, leaving those...
Chilean society has been changing rapidly for the last few decades during a time of rapid economic growth. Some sociological and economical analyses state that when a nation grows, inequality between the rich and poor grows too, leaving the poor behind. The Chilean economy is the most rapidly growing in...
This study investigates the barriers faced by fats, oil, and grease (FOG) as an energy feedstock in the state of Oregon. FOG, which typically originates in food service establishments (FSEs), historically has been treated as waste, yet it also has the chemical make up to be an energy feedstock in...
For several years researchers have investigated how teachers’ beliefs
impact a classroom. Equally important to consider when striving to improve
education are the beliefs held by the students. College Algebra is an important
class for many collegiate students, and gaining an insight into their beliefs about
mathematics and desires for...
This research provides information on the distribution of an
unexploited Roosevelt elk population in unaltered habitat in Olympic
National Park. Radio-telemetry was used to document home range and
habitat use by 11 adult cow elk in the Hoh Valley during March 1978,
from 10 June-15 September 1978, and from 1...
The economic aspects of quality control have received wide concern since its developmental stages, however, they have not been sufficiently explored. Moreover, as the need for complex products of high precision and reliability increases, most industrial firms have experienced some difficulties in meeting that need at reasonable costs with their...
There is a growing movement in the U.S., and throughout the world, involving top down government bureaucracies or government agencies within the natural resources field, to develop new and innovative processes and structures for integrating societal viewpoints into agency decision-making. This study examines Urban Matters, a community of practice within...
The negative effects of poverty on childhood academic outcomes are well documented by current research. Children in poverty experience pronounced positive effects of familial involvement on these same academic outcomes. Unfortunately children in poverty experience low levels of familial involvement. Current familial involvement policy is centered in the school environment....
Some evidence suggests a connection between outdoor recreation participation and
stronger environmental worldviews. This study finds little evidence supporting
participation in outdoor recreation activities and stronger environmental worldviews and
some evidence supporting a weak connection between appreciative outdoor recreation
and stronger environmental worldviews. Additionally, the study documents greater
participation in...
Using Richard Matland’s ambiguity/conflict model of policy implementation, this research examines the connections that agencies and organizations in one rural county, Klamath, and one urban county, Multnomah, in Oregon utilize to implement a particular state policy. The policy being examined is ORS 418.746-800, which mandates the use of Multidisciplinary Teams...
This study explores Oregonians’ attitudes about and perceptions of public education. Specifically, perceptions about education quality were analyzed, looking at the perceived quality of education today and how it has changed over the last 5 years. Questions posed to respondents about education funding, explored views on additional state funding needed...
The Narrative Policy Framework (NPF) has emerged as a method of understanding how stories and evidence are portrayed within policy arenas to support policy discussions and what end goals these policy narratives aim to meet. This study applies the Narrative Policy framework to policy narratives used to discuss and share...
Interweaving perspectives from both social cognitive psychology and Tibetan Buddhism, the present study examined common and differential effects of two styles of meditation: Loving-kindness meditation (LKM) and mindfulness meditation (MM). Psychological theories of construct accessibility postulate that cognitive constructs activated frequently are more readily available for processing stimuli. Researchers in...
This dissertation arose out of an awareness of difficulties undergraduate linear algebra students encounter when solving linear algebra problems from novel, non-isomorphic settings, even when the problems could be solved with matrix representations and similar procedures as problems from a more familiar setting. This mixed-methods study utilized both traditional and...
The objective of this research was to investigate
the physiological effects of body posture on cycling.
The familiar positions of bicycle riding have been the
touring posture (hands stretched on top handlebar) and
the racing posture (hands bent at the elbow, with the
back horizontal). However, a relatively new stance...
Both Buddhist and psychological theory postulate that present actions will influence future perceptions, judgments, and behaviors in a concordant manner. While Buddhists explain these effects in the context of karmic theory, psychologists consider these effects of construct activation and chronic construct accessibility. The present study sought to apply social psychological...
Much has been written concerning the determination
of a single sampling plan given two points on the operating characteristic (OC) curve. A computer program is
presented which will provide minimum sample size for
single sample attribute sampling plans. The program
provides sampling plans based on the binomial distribution. It incorporates...
Three studies tested the hypothesis that existential threats will be negatively associated with attitudes toward different kinds of freedom. Existential threats experienced as Death Anxiety and Belief in a Dangerous World were negatively associated with attitudes toward Freedom To behave in a desired manner and positively associated with the idea...
In 2011, Governor John Kitzhaber, along with the Oregon legislature, affirmed a clear and ambitious goal for the State. The 40-40-20 goal states that by 2025, 40% of adult Oregonians will have an Associates degree or a meaningful postsecondary certificate, 40% will hold a Bachelors degree or advance degree and...
The purpose of this study was to investigate third year college students' transfer of learning of the concepts of eigenvalues and eigenvectors from the winter term physics courses to the interviews in which they participated before, during, and after these courses. Transfer of learning of each student was explored
by...
On any given night across the United States there are over half a million individuals that are experiencing homelessness. Much of the growth in homelessness has been concentrated on the West Coast, with states like California, Oregon, and Hawaii having the highest percentages of people experiencing homelessness that are unsheltered....
One of the greatest challenges in the West is the sustainable management of limited water resources. In recognition of localized responses to natural resource challenges, there has been considerable work in the area of adaptive capacity and collaborative governance to help understand a community’s capacity to manage change. This study...
This thesis focuses on the investigation of extraterrestrial tracers Ir, Pt and 3He in polar ice cores. These tracers may be used to identify characteristics of interplanetary dust particles, and to quantify the flux of extraterrestrial material during impact events, certain volcanic eruptions, and stable background periods. In the first...
Plywood production scheduling for years has been
considered, more or less, a sacred activity in which only
a select group of individuals with the experience and
knowledge could take part. With the advancements in
computer technology and related fields, the plywood
industry is in a position where more people can...
Pets are reshaping human lifestyles in countries around the world. More people than ever include pets as part of their family. Organizations including the Society for Companion Animal Studies (SCAS) and the Human Animal Bond Research Institute (HABRI) have conducted and sponsored a wealth of research into human-companion animal interactions...
A comparison of two procedures which allocate inspection effort
within a production sequence is presented here. The concern
for quality and the need to hold down the costs of quality has resulted
in mathematical models which locate inspection so that the
desired quality is attained at a minimum cost.
In...
Homelessness has many faces, several of which society will never truly see. The homeless population has begun to change during the recession, as families lose their homes to foreclosures due to high interest mortgages or become evicted from rental dwellings as one or both wage earners lose employment. The initial...
This essay examines the low-income weatherization program in rural Oregon, shedding light on difficulties in increasing weatherization services to low-income rural households. This essay also identifies policy limitations. There are strict rules in place for utilizing Department of Energy weatherization funding and some of these rules
are likely to make...
In recent decades, local governments have desired to increase community engagement in collaborative governance processes, such as community visioning and strategic planning, in an effort to develop policies that are inclusive and supportive of those who live in the community. A key component of the community visioning process is the...
Wildfires across the Western United States, specifically in California have increased in size and intensity in recent decades. These fires are encroaching on California’s Wildland Urban-Interface (WUI), often with devastating results. Most recently, these destructive results were displayed in the 2018 fire season in the Camp and Carr Fires and...
The undisputed cost-effectiveness of the anti-homelessness program “Housing First” is well established in the empirical literature, but fewer studies have considered the impact of the program on individual residents. This mixed-methods study examines the lives of a cohort of residents in a Portland-based Housing First project, seeking to determine whether...
Although the question of free will has persisted throughout the history of philosophy as an important metaphysical consideration, rarely does the inquiry include empirical evidence from other disciplines concerned with human behavior. In this interdisciplinary paper, I combine the wisdom of psychologists, metaphysicians, and philosophers of science to comment on...
Purpose of the Study
The purpose of the study was to determine whether
there were significant differences in students' achievement
and attitudes as a result of two different instructional
strategies utilized in a vocational graphic arts
program. In order to accomplish this, the following
procedures were considered.
Procedures
This comparative...
Methane is a product of biogeochemical processes which respond to changes in climate. The history of atmospheric methane is recorded by ice cores providing insight into past changes in these biogeochemical processes. This dissertation is comprised of three studies which focus on centennial- and millenial-scale variability of methane from ice...
Understanding how the latitudinal distribution of methane sources changed between stadial and interstadial climate states during the last glacial period can provide important clues about how terrestrial hydroclimate and ecosystems evolved between these different states. The punctuation of the millennial-scale structure by Heinrich events is also of interest in this...
There is a critical lack of economic information in the area of chemical weed control. This paper is intended to stimulate study in this area. The objective is to develop a method of economic analysis of alternative herbicide practices. The data used were taken from a Druchamp winter wheat trial...
Ecological and historical information are combined in examining the environmental influence of fire and grazing on rangelands in eastern Oregon through time. Competitive relationships between herbaceous and woody flora in the northern Great Basin are discussed, focusing broadly on the shrubsteppe regions 'of Franklin and Dyrness (1973) but with special...
In Oregon, property tax revolts and school equalization measures have led to increasingly unstable and more non-discretionary public funding for schools. As a result, public schools are turning to private donations to provide both basic and supplemental educational opportunities. Some schools and districts are raising hundreds of thousands of dollars,...
The purpose of this study was to compare the self-perceived
leadership styles, range and adaptability of
women managers in higher education and non-education management positions. Specifically, the study sought to
investigate the: (1) self-perceived leadership styles and
adaptability of women managers in higher education and non-education,
(2) self-perceived leadership styles...
Many communities emphasize participatory involvement in local development or reinvention efforts. Recognizing barriers among specific groups could help community leaders identify what may be constraining underrepresented groups from joining in. Utilizing data from the Social Capital Benchmark Survey, this research examined identified “barriers” to community involvement among individuals in rural...
The Missoula Floods occurred approximately fifteen thousand to thirteen thousand years ago during the last ice age. The floods occurred when waters held back by a finger of the Purcell Ice Lobe gave way allowing water which covered present day Missoula, Montana to inundate areas of Idaho, Washington, and Oregon....
The principal objective of this study was to identify
and investigate the underlying basis for variations in the
volumes of exports of U.S. winter pears during the 1947 to
1974 period. A number of factors thought to be of importance
in the determination of the volume of exports of a...
A heuristic is developed to plan loads for containerized cargo ships. It is designed to serve a port which uses gantry cranes (transtainers) and trucks to handle containers. The model recognizes constraints on ship stability, placing containers in a bay with the proper length, placing refrigerated cargo near electrical outlets,...
There are a nearly unlimited number of situations in which the
status of time-varying processes must be updated. The monitoring of
these processes usually occurs at periodic intervals. Whether the
monitoring is performed by man or machine, a decision must be made
regarding the frequency of these activities, that is,...
An oscillating plasma glow discharge detector for gas
chromatography is used to obtain fingerprint information
about an analyte by combining both the average cell
current and oscillation frequency signals. Five homologs
each of the n-alkanes, 1-alkenes, 1-alkynes, 2-ketones and
aldehydes are studied. Although triplicate determinations
had some scatter due to...
A double-beam photometer was designed and built employing photon counting to give a direct digital readout. It was evaluated as an analytical instrument with special emphasis on pulse recovery time, pulse interaction and instrument settings. An equation is developed to explain pulse interaction in event counting systems.
Old-growth dry-mixed conifer forests are valued as habitats for late seral forest species, for the
ecosystem services and landscape diversity they provide, and for their aesthetic appeal. The
structure of these forests has been heavily altered by historic logging of overstory ponderosa
pine and Douglas-fir. Additionally, changes in fire regime...
A computer simulation was developed as a technique for
studying the effects of the process dynamics on the operator's
sampling and control behavior. This methodology was
used to study the effects of the process input memory
variation in the presence of different observation noise
levels. It was concluded that the...
Damping-off of table beets is of widespread occurrence in the
Willamette Valley of Oregon. Pythium ultimum Trow., Pythium
debaryanum Hess., and Rhizoctonia solani Kuhn. were found to be the
important pathogenic fungi causing the disease.
Trichoderma viride, Penicillium spp. Streptomyces spp. and
certain isolates of bacteria, all saprophytic organisms associated...
Chemically defined liquid media were devised which supported
excellent growth of Taphrina cerasi and T. deformans. When grown
in fermentation culture vessels, T. cerasi and T. deformans released
cytokinins into the liquid media. The presence of these cell division
factors was demonstrated with the soybean tissue assay which is
specific...
The temporal and spatial characteristics of a laser microprobe plume were investigated using the spectroscopic methods of emission, absorption and fluorescence. The plume was produced by rapid vaporization of a small quantity (1 μg) of a solid sample using a focussed pulsed dye laser (110 MW/cm²). For absorption and fluorescence...
An atmospheric pressure argon glow discharge is shown
to detect trace levels of carbohydrates in aqueous flowing
systems, using either of two glow discharge solution
interface configurations. The first configuration consists
of an oscillating glow discharge sustained between a flowing
aqueous cathode and platinum anode. Picomole and micromolar
mass and...
The necessity for the evaluation of training methods on a between
methods basis is suggested. Current methods of training evaluations
are considered, and found to be generally deficient for their
lack of between technique comparisons. The necessity for an outline
of planned comparative analysis of training methods is indicated and...
Purpose of the Study
This investigation was an attempt to assess the relationship
between selected variables of personality and leisure activity preferences
using multivariate statistical procedures. It was shown that
previous attempts to explain man's use of leisure have persistently
emphasized demographic variables such as income, sex, occupation
and age....
Production of surimi represents a potential utilization of a number of low-valued
fish species, one of which, Pacific whiting, represents the largest biomass off the West
Coast of the United States. However, a protease enzyme softens the fish flesh in Pacific
whiting and limits the expansion of surimi production.
Many...
The use of gas jets in a sputtering cell makes this direct sampling method practical for atomic absorption and mass spectrometry determinations. With a commercial six-jet sputtering source, the Atomsource (Analyte Corp., Grants Pass, Oregon), that directly atomizes solid samples for conventional atomic absorption spectrophotometers, the sample loss rate for...
Investigations of plasma production by a pulsed dye laser
microprobe were made. Comparisons between a Q- switched and a
pulsed dye laser system were made on the intensity of the continuum
produced by atmospheric breakdown. The dye laser system was
foundtominimize the production of the continuum which in turn
allowed...
A photon-counting technique which provides direct digital read-out
of data has been developed and evaluated for the reaction rate determination
of glucose. The enzyme catalyzed oxidation of glucose
to gluconic acid and hydrogen peroxide with the subsequent reaction of
hydrogen peroxide with excess iodide to produce tri-iodide is followed
by...
The viability of using ohmic "resistance" heating as a process alternative to
inactivating the heat-stable softening enzyme in Pacific whiting surimi was
investigated. A fast heating rate through the enzyme-active temperature range
would reduce the damage to the gelling network in surimi-based products.
Simulating the ohmic heating process in surimi...
With increasing frequency man is required to operate as a
controller of complex processes. Although his ability to operate
quickly varying processes has been extensively studied, his ability
to control slowly varying processes has been largely neglected.
Often his performance in such tasks is dependent upon his ability
to forecast...
The change in the oscillation frequency in the current of
an atmospheric helium glow discharge is a sensitive detector
for gas chromatography. The response of the detector is in
the femtomole and picomole range for nonane and decane. The
effluent of a capillary column is directed into a glow
discharge...
The Egyptian economy depends heavily on cotton as the major export commodity among agricultural commodities. Egypt is the largest exporter of extra long staple cotton in the world followed by Sudan and Peru. It provides about 45 percent of the world exports of extra long staple cotton. Instability in the...
The noise problem in air conditioning systems is receiving ever
increasing attention because of the importance of noise on a comfortable
human environment. Some work has been done on the solutions
to the noise problem by an investigation of a few system elements.
The acourstical characteristics of dampers become more...
The teliospore of Tilletia caries germinates to produce a promycelium
with a whorl of primary sporidia at its tip. The time between
emergence of the promycelium and the development of primary sporidia
averaged 2.3 h. Fusion between compatible sporidia occurred within
an additional 3.8 h. Primary sporidia appeared to be...
Understanding mathematics and teaching mathematics involve
numerous factors, one of which may be an individual's spatial ability.
This paper examines research conducted on the relationship between
spatial abilities and mathematics, gender differences in the area of
spatial ability, the types of experiences that may affect one's spatial
ability, and issues...
This thesis consists of extensions of results on a perpetual American swaption problem. Companies routinely plan to swap uncertain benefits with uncertain costs in the future for their own benefits. Our work explores the choice of timing policies associated with the swap in the form of an optimal stopping problem....
An investigation was made to test the method of Head on the
flow about a circular cylinder with suction. The method of Head is an
approximate method of obtaining solutions to the boundary layer equations.
The method was adapted to the digital computer to facilitate
performing the calculations, and a...
The South Pole ice core (SPC14), drilled in the field seasons of 2014/2015 and 2015/2016, is an intermediate length, 1,751-m ice core which preserves a 54,000-year record of past climate and atmospheric composition. The SPC14 ice core adds to the spatial grid of ice cores in Antarctica extending into the...