The purpose of this study was to investigate the effects of
various auditory metronomic rates on addition performance of
selected second-graders in Lindsay, California, and thereby test the
theory that when such rates "approach and reach personal tempo the
individual enjoys an optimal circumstance for learning" (Barsch,
1974, p. 5)....
In a discrete review inventory process, when the demand
forms a stochastically convergent sequence of random variables,
it seems reasonable that the optimal stationary (s, S) inventory
policy will be a function of the limiting demand and cost structure
only. The intent of this paper is to provide a rigorous...
Glutathione, a ubiquitous intracellular tripeptide, protects cells by reacting with electrophiles and radicals that can damage cellular macromolecules. However, glutathione conjugation is now recognized as one mechanism by which drugs and xenobiotics can also be converted to reactive intermediates having toxic consequences to cells. The halogenated alkane 1,2-dichloroethane forms S-(2-chloroethyl)...
This study describes the soils, vegetation and age structure
of the Pinus contorta forests of Crater Lake National Park. Growth
rates of P. contorta, and levels of infection and impact of dwarf
mistletoe (Arceuthobium americanu1r) on growth of P. contorta
individuals are compared among communities.
Vegetation description is based on...
The purpose of this study was to monitor coronary responses
occurring in the S-T segment of an electrocardiogram before, during
and after exercise following a "standard" carbohydrate-loading schedule with varied vitamin B-6 supplementation. The study was conducted
using four college-aged males who had been training a minimum of two
years...
Adult male guinea pigs were maintained on four dietary regimens
for a period of 8 weeks. The basic diet consisted of powdered guinea
pig chow with 10% coconut oil. The three experimental groups
received the basic diet with additions of either 1% lecithin, 0.25%
cholesterol, or 0.25% cholesterol plus 1%...
The cyclopropene fatty acids, sterculic and malvalic, occur
naturally in a major food lipid, cottonseed oil, and have been implicated
in several physiological disorders. Rainbow trout in this
study were fed semipurified diets containing 200 or 300 ppm methyl
sterculate, and the effects on hepatic lipid and glycogen levels,
lipid...
This thesis traces the relationship between the First World War, constructions of masculinity, and the life and poetry of T.S. Eliot. Central to this relationship is a study of homoeroticism, which the author characterizes as different from homosexuality but not exclusive of it, in late 19th and early 20th century...
In October, 2016, presidential candidate Donald Trump released a document titled “Contract with the American Voter.” This document promised, among many things, that within his first 100 days of his potential presidency, he would repeal and replace Obamacare. When he was unable to fulfill that promise, he employed rhetorical tactics...
Within The Lamplighter, a novel written in 1854, Maria
Susanna Cummins defines a version of the sentimental novel
that significantly differs from the prescriptive analysis
male critics have offered for the genre. This thesis
argues that feminist theory and recent rhetorical theory
have caused a critical paradigm shift that has...
Existing methods for the estimation of relative participation of
glucose catabolic pathways make use of yield data of respiratory
¹⁴CO₂ or intermediary ¹⁴C products derived from glucose substrates
specifically labeled with ¹⁴C. Cumulative yields of respiratory
¹⁴CO₂ observed at the end of time course of complete substrate
utilization are analyzed...
The problem of estimating the parameters of a forced discrete
linear dynamic model is considered. The system model is conceptualized
to include the value of the initial state as a parameter. The forces
driving the system are partitioned into accessible and inaccessible
inputs. Accessible inputs are those that are measured;...
Field studies to determine appropriate cutting management
regimes consistent with yield, quality, and persistence
of stand were conducted on several alfalfa varieties in the
Columbia Basin region of Oregon.
Two groups of treatments, including consecutive cuts at
the same stage of maturity and cuts made at varying maturities,
were imposed...
The concept of a process is often used in connection with operations
of parts of a computer system. This thesis discusses processes
in terms of their use as representations of a physical object or system.
Five primitives are introduced as operators for allowing processes
to be run in a piecemeal...
In 2000 the Electrical and Computer Engineering department at Oregon State University began a new and innovative program named TekBots[superscript TM]. This program was created to solve the problems of students in existing undergraduate engineering education not having sufficient skill when graduating in six program educational objectives; Depth, Breadth, Professionalism,...
There are six types of Cl. botulinum (Types A, B, C, D, E,
and F). The differentiation between these types is based upon the
antigenic structure of the toxin. Many strains of these various types
have been isolated. In addition, a number of nontoxigenic "type Elike"
strains have come to...
Experiments were conducted to determine the effects of feeding
sulfamethazine to chinook salmon (Oncorhyncus tshawytscha, Walbaum)
as it is used in the Oregon Moist Pellet diet (OMP) for control of
bacterial infections and to compare this drug with sulfisoxazole and
sulfadimethoxine. These drugs were compared in the following manner:
toxicity,...
This thesis includes three studies involving different aspects of modeling protein structure. The first study illustrates the levels of insight available from atomic-resolution protein structures. The second study derives general trends of protein geometry from atomic-resolution structures and shows their implications for modeling. The third study creates a model of...
A theoretical study of the heat and momentum transfer resulting
from a flow of power plant condenser effluent discharged vertically to
shallow, quiescent coastal receiving water is presented. The complete
partial differential equations governing steady, incompressible, turbulent
flow driven by both initial momentum and buoyancy are solved
using finite-difference techniques...
An accuracy assessment of two broad-scale vegetation databases for eastern Oregon, both developed from satellite imagery, was performed to assess the usefulness of the databases for forest landscape planning and assessment efforts. The two databases were the Oregon Department of Forestry (ODF) vegetation database and the U.S. Geological Survey National...
This thesis is a study of the shifting philosophical trends in the works of Samuel Beckett, Donald Barthelme, and Kurt Vonnegut as representations of a greater shift from modernism to postmodernism. I have chosen to explore Beckett's plays Waiting for Godot and Krapp's Last Tape, Barthelme's short stories "Nothing: A...
Hardware weekend (HWeekend) is a free 30-hour hardware development event sponsored by the College of Engineering, College of Business, and Inventors Enterprise wherein students work together in small teams to create a marketable project they can demonstrate and pitch to judges at the end of the weekend. Unlike similar events,...
The purpose of this pilot study was to determine whether students
using a series of planned exercises designed to improve typewriter
composition skills would be better able to compose at the typewriter
than students in a control group. The study was also concerned with
the effect that the use of...
The Purpose of the Study The purpose of this study was to identify the tasks performed by low-ability office employees as viewed by office supervisory personnel, and, also, to analyze these tasks. The study was conducted in Alberta, Canada. To analyze tasks performed by low-ability office employees, it was necessary...
This study investigated various aspects of coaching preparation
at the undergraduate level to determine where coaches are being trained
to enter the coaching profession as well as to determine where active
coaches were trained in the competencies deemed necessary for an
individual to be a success in the coaching profession....
The purpose of this thesis is to construct several stochastic
process models for combined statistical dynamic prediction of the
500-millibar pressure surface for the northern hemisphere. To
achieve this, a random forcing function is added to the spectral form
of the nondivergent vorticity equation. Three models, one linear and
two...
An iterative approach is suggested for the estimation
of the error covariance matrix [sigma] to find approximate BLUE
estimators in linear regression models.
It is shown through
experimental studies how the variances can be estimated in
the simple general linear regression model, in the linear
regression model sequenced over time,...
A computationally efficient algorithm has been developed for
determining exact or approximate solutions for large scale generalized
fixed charge problems. This algorithm is based on a relaxation
of the Benders decomposition procedure, combined with a linear
mixed integer programming (MIP) algorithm specifically designed to
solve the problem associated with Benders...
Nonalcoholic fatty liver disease (NAFLD) is characterized by the accumulation of excess neutral lipids within the parenchymal cells of the liver. The primary etiology is diet-induced and most often exists as a comorbidity with obesity, metabolic syndrome, and/or Type 2 Diabetes. The development of excess liver lipid can be self-limiting...
The exponential family of probability distributions is obtained
from σ-finite measures on the real line. We choose the parameter
space to be one-dimensional and the exponent to be linear. Relationships
between the measure, its spectrum, and the parameter space
are examined, moments of the exponential family are studied, and
the...
This study was designed to determine instructor performance
appraisal methods being used in community colleges (in Florida, Iowa,
New York, Texas, and Washington) and to identify factors responsible
for variations in performance appraisal procedures. Questions about
instructor performance appraisal which were examined included: who
does it, for what purposes, what...
The research presented in this thesis was designed to evaluate
the effects of feeding alfalfa hays from the Klamath Basin of Oregon
in practical dairy rations on milk fat production in high-producing
Holstein cows. Thirty-two second lactation or older animals estimated
to be capable of producing at least 70 lbs...
Although the prevalence of family businesses in our current economy is rapidly increasing, there is very little research involving consumer perceptions of these firms. This study aims to study these consumer attitudes (i.e., trust, attitudes, and purchase intentions) towards family and non-family firms. This thesis also discusses how those wrongdoings...
A Bayesian approach to the analysis of a two-phase linear
regression model is given. It is assumed that the regression model is
continuous at the change point. The likelihood function is expressed
in a form which explicitly contains the continuity restriction. The
natural conjugate prior distribution for the likelihood function...
An increased metabolic efficiency may be a factor underlying the
onset and maintenance of obesity. This study examined the Resting
Metabolic Rate (RMR), the Thermic Effect of Food (TEF), the Thermic
Effect of Exercise (TEE), and the Potentiation (P) of the TEF by
Exercise in Juvenile-onset type obesity (JOTO), and...
A four months continuous feeding trial was conducted
to evaluate Canola meal as a single protein supplement in
complete dairy rations. Thirty high producing Holstein
cows in the second week of lactation were randomly alloted
in groups of ten to one of three isonitrogenous (15% CP)
and isocaloric (1.6 Mcal/kg...
The purpose of this study is to review Pennsylvania's
use of paper money through two distinct periods: the first
seven years of currency issues starting in 1723 and
concluding in 1730, and the second period encompassed by
the French and Indian War in 1755-63. They represent two
significant periods affecting...
This study examines the effects of corporate social responsibility (CSR) on merger and
acquisitions (M&A). Using data from Kinder, Lyndeberg, and Domini (KLD) Research
Analytics and Thomson’s Securities Data Corporation’s (SDC) Platinum Database, we
empirically test if CSR scores effect a firm’s propensity to pursue M&A activity.
Specifically, I examine...
The purpose of the thesis is to design, construct,
program, and test an automatic integrated circuit test
system. The class of integrated circuits tested was restricted
to digital integrated circuits. The general concept
of testing a digital integrated circuit is based on
the truth table of that circuit. A combination...
The effects of burial by tephra (volcanic aerial ejecta) on
forest understory plants were examined northeast of Mount St. Helens,
Washington, in the area where the 18 May 1980 eruption deposited
tephra but did not destroy canopy trees. At six sites along a tephra
depth gradient from 2-15 cm, understory...
Thermal oxidation of methyl oleate was studied over a range of temperatures from 50 C to 150 C for periods of time up to 30 min. Degradation was quantitatively followed by gas liquid chromatography (GLC) and liquid scintillation counting of the products of methyl oleate-U-14C heated under a stream of...
Lack of growing season precipitation and the temperate climate in north central Oregon pose challenges to growing spring wheat crops. Phosphate and sulfate fertilization can improve early growth of spring wheat in this region and soil testing aids in determining rates of fertilization. In this study, anion exchange membranes (AEM)...
The light-adapted crayfish, Pacifastacus trowbridgii (Stimpson,
1957), displayed a behavioral response to exposure to 300 kV x-rays at
exposure rates of 10 to 30 R/s. Within this range, the proportion
of subjects that responded increased with an increase in exposure
rate. The response latency was inversely proportional to the
exposure...
Currently, the Port of Portland is developing a 9, 410 acre area
at the confluence of the Columbia and Willamette Rivers in Multnomah
County, Oregon. This area will be developed for industrial, commercial,
and recreational use. The recreational development in the
North Portland Peninsula area, including the Rivergate Industrial
District,...
Type 2 diabetes mellitus (T2DM) is a disease of multi-complications
affecting more than 20 million US adults. Hyperglycemia is the classic clinical feature of diabetes, and uncontrolled hyperglycemia leads to deadly health complications. Thus, control of blood glucose represents a major goal for diabetics. Human and rodent studies revealed another...
Statistical data from breeding experiments suggested that a
reciprocal chromosomal translocation had spontaneously occurred in
a line of S. C. White Leghorn fowl. Approximately 50% of the
embryos from matings between suspected translocation heterozygotes
and normal birds died early during incubation. In an effort
to obtain cytological proof of this...
A short history is given of cathode-ray tubes, from the
earliest laboratory tubes available during the early 1900's through
present day high performance tubes. Special attention is paid to
the development of post-deflection acceleration types especially
band-type PDA tubes and an improvement on that type known as the
helix-type PDA...
Urinary steroids have been studied during early and late pregnancy in
domestic horses or sporadic samples at various stages of pregnancy in wild
equidae. In our studies, urinary estrone sulfate (E1S) and pregnanediol
glucuronide (PdG) were monitored throughout pregnancy in six pony mares by
enzyme immunoassay (EIA). Both hormones were...
Senecio jacobaea (tansy ragwort) is a common weed in the
Pacific Northwest that contains toxic pyrrolizidine alkaloids
(PAs). Jacobine, the major PA in Senecio jacobaea, was incubated
with rat liver microsomes and metabolites were isolated by high
performance liquid chromatography (HPLC) and identified by mass
spectrometric analysis. Metabolites included a...
Comparisons were made of the tissue water relations, stomatal conductance and growth of grand fir (Abies grandis), white fir (Abies concolor) and their hybrids growing in a western Oregon plantation. The grand fir were naturally-regenerated trees native to the study site. White fir and hybrids were the progeny of controlled...
Protein disulfide isomerase (PDI), a member of the thioredoxin superfamily, contains two domains with significant sequence homology to the active sites in thioredoxin. PDI facilitates the folding of nascent proteins in the endoplasmic reticulum (ER), binds hormones and Ca²⁺, catalyzes the glutathione dependent reduction of dehydroascorbate, serves as a major...
Several aspects of the potent inhibition of bovine plasma amine
oxidase (PAO) by hydrazines were investigated by kinetic and preparative
means. The inhibition was classified as pseudo-irreversible
by the method of Ackerman and Potter (Proc. Soc. Exptl. Biol. Med.
72, 1 (1949), and was found to exhibit Zone B kinetic...
Year-round habitat use of marine predators provides knowledge of important marine areas throughout different life stages. Large-scale, environmental variability, both in space and time, causes changes in the behavior and distribution of marine predators that are important to quantify for conservation. In the Northern California Current System (NCCS), common murres...
Washington and Oregon became important states in the production of apples and pears in the early 1900's. During these beginning
stages, wooden boxes were used for shipping both apples and pears.
Apple containerization has progressed through several stages. Today,
the most common container for shipment of apples out of the...
Detailed surveys of several segments of the Peru Trench show
that the region between 6° to 10⁰ S is an area of recent deformation.
Seismic reflection records across the axis of the trench show faulting,
uplift, and tilting of the sedimentary fill and the acoustic basement.
Uplift of the acoustic...
Hexachlorophene (HCP; 2,2'-methylenebis-(3,4,6-trichlorophenol))
was developed as an antibacterial agent but was also found to induce
toxic effects in various tissues in animals and humans. Changes were
found in myelinated nerve fibers and cerebral white matter. Erythrocytes
are hemolysed in vitro. Oxidative phosphorylation is uncoupled
by HCP at concentrations less than...
This thesis addresses the problem of deciding whether or not
two disjoint random samples that are fitted by the same regression
equation emanate from the same parental population. Two situations
are considered. The first situation is where the two disjoint samples
are individually fitted with the regression equation. The second...
The simplified equations of motion proposed by Morton to determine
the extent of vertical travel of a forced plume in a linear
density stratified environment were re-written and solved in a way
which allowed them to be applied to any non linear profile of density.
For application to any specific...
This paper describes an inverter design which provides voltage
regulation against variations in both the input voltage and load impedance.
This design modifies the so-called parallel inverter, which
consists of two silicon controlled rectifiers (SCRs) operating in a
push-pull arrangement, to include a third regulating SCR. This
regulating SCR is...
Four bovine adenovirus type 3 isolates, recovered from different areas in Oregon and Washington, were compared antigenically with the original prototype strain which was isolated in England. The fluorescent foci assay method was used to quantitatively establish viral titers. A serum-viral neutralization test was performed with a standard dose of...
Sialic acids are involved in many cellular interactions. They can serve as an adhesion ligand or act as an inhibitor to cellular adhesion by charge repulsion or by masking potential ligands. Although sialic acids are implicated in the process of blastocyst implantation, their expression and regulation in uterine epithelium of...
The need for better procedures for detecting Staphylococcus
aureus prompted an investigation to improve coagulase testing. The
rates of coagulase clotting were studied by using varying concentrations
of trypsin inhibitor and coagulase-reacting factor (CRF). Egg
white trypsin inhibitor activated coagulase clotting when added to a
final concentration between 2 and...
The effects of five cytokinin antagonists on the growth
of cytokinin-autonomous lines of Phaseolus lunatus cv.
Kingston, Phaseolus vulgaris cv. Great Northern, and
Nicotiana tabacum cv. Wisconsin 38 callus tissues have been
compared. The antagonists tested included four N⁴-substituted 4-amino-2-methylthiopyrrolo[2,3-d]pyrimidines
bearing the following N⁴ side chains, 4-n-pentyl-
(ms²pnN⁴Prp), 4-n-hexyl- (ms²HxN⁴Prp),...
Right cerebral hemispheric lateralization for spatial
perception has been reported by using visual and tactile
spatial tasks in brain-damaged patients, split-brain
patients, and normal subjects. The main purpose of the
present study was to investigate whether or not kinesthetic
spatial perception was dominantly processed with the right
cerebral hemisphere as...
Nonalcoholic fatty liver disease (NAFLD) is characterized by an accumulation of neutral lipids in the form of triglycerides and cholesterol esters accounting for >5% of liver weight. Excess neutral lipids accumulate in large lipid droplets, i.e., macrosteatosis, displacing the nucleus of cells. Current theory suggests neutral lipid accumulation is the...
Forty-eight young adult males were ranked on the basis of mean
hand-grip strength scores and the middle one-third, the medium
strength range, were chosen as subjects. These sixteen subjects were
given 30 serial trials in each of four tests; knee flexion, knee
extension, elbow flexion, and elbow extension. Each trial...
The treatment of waste water from a corn freezing process by
activated sludge with the aid of alum coagulation was investigated.
Both high and low energy level systems were observed with good
flocculation occurring at the low energy level. Because poor flocculation
occurs at high energy level conditions, alum was...
This thesis presents a general model for the location problem
based on integer linear programming with fixed charges. The location
problem is concerned with choosing locations for facilities
throughout a particular region or area in such a way that total costs
and expenses incurred are minimized. Although the location problem...
The presence of residual muscular tension has been implicated
as a detrimental influence on the performance and learning of motor
skills. A method for reducing muscular tension has been provided by
the recent advent of biofeedback training. Thirty young adult males
were subjected to tests of stabilometer balancing skill and...
Organoleptically, flavored yogurts appear to contain lower
levels of acetaldehyde than plain yogurt. This study was undertaken
to seek the reasons for this phenomenon by focusing on the analyses
of acetaldehyde production by yogurt culture bacteria in yogurt base
containing added sucrose and by performing other analyses such as
the...
A distribution-free analysis is proposed for inference concerning
treatment effects in factorial survival experiments in which the recorded
data are grouped by time intervals. A grouped data model is built by
applying the continuous-time Cox regression and life model. This models
the treatments to have multiplicative effects, possibly time dependent,...
Engineering students spend a significant amount of their undergraduate careers focused on technical theory and practice. This intensive student prepares them for their technical challenges in the future. This training is so intense that often the more 'soft skills' such as communication, leadership, design, and troubleshooting are left out or...
Marine heatwaves (“MHWs”) are discrete periods of anomalously warm ocean conditions that can lead to shifts in the distribution and abundance of marine organisms. Low-trophic level, pelagic forage species are frequently among those affected by MHWs, often resulting in considerable impacts upon their predators. In the North Atlantic Ocean, Atlantic...
The junction-field effect transistor has been improved technically,
so it is appropriate in analog switching applications. In this
paper, use of a junction FET as an analog switch is described.
Feedthrough of current from the gate control voltage causes a
noise at the output during the switching transient. Peak noise...
Recent studies have demonstrated that perturbations of
intracellular thiol and calcium homeostasis may be important events
in the early development of cell injury by toxic chemicals.
Incubation of isolated rat hepatocytes in a calcium free
medium, severely depleted intracellular Ca²⁺ levels and resulted in
the loss of both cytosolic and...
In 1962 a large amount of data was collected in an effort to
establish the existence of subsurface ocean currents off the coast of
Oregon. The presence of several phenomena, including tides and
measurement errors not directly associated with the hypothetical
currents, complicates the interpretation of the data and the...