When selecting an approximate integration technique for use in
a digital differential analyzer, such factors as cost, parts count,
power dissipation and solution accuracy must be considered. This
paper considers the application of the classical rectangular and
trapezoidal integration techniques and a new two cycle method of
integration, all implemented...
Subsistence hunting and fishing in Alaska is a political, social, and cultural issue. Since statehood in 1959 the state of Alaska has managed fish and wildlife resources on all its lands. But because the state has been unable to come into compliance with federal regulations mandating a subsistence rural priority,...
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...
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...
With too many demands placed on too little water, the Klamath Basin and itsresidents - human and otherwise - are in dire need. There exists a significant opportunityfor mitigation in the purposeful conversion of seasonal wetlands to permanent wetlandsmanaged to increase baseline water storage levels in the Upper Basin. A...
Optimization programming techniques were applied to
develop the least cost formulations for Pacific whiting
surimi-based seafood (PWSBS). To develop the quality
constraint functions, texture and color of whiting surimi
gels were determined by torsion test and colorimeter,
respectively. Whiting surimi gels were produced by heating
at 90°C for 15 min....
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,...
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 purpose of this investigation was to determine whether sex-role
identification differences among college students were related to place
of residence, and if so, whether certain factors affect these
differences. Six hypotheses were developed. The study sought to
ascertain if sex-role identification is related to certain dimensions of
peer association...
The anaerobic and highly reductive conditions found in the ovine rumen are considered favorable for the degradation of the nitroaromatic explosives such as hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). In this study, we used stable-isotope-probing to determine the bacteria responsible for the degradation of RDX in the rumen. Results indicate 10 μg mL⁻¹ (45...
A high volume sampling system, employing Nuclepore filters and
designed for sampling particulate in the plumes from industrial
sources using a light aircraft, is described. The effluent of kraft
paper mills was sampled using this system and then analyzed by
electron microscopy.
Size distributions of particles were obtained at several...
Neryl pyrophosphate, rather than geranyl pyrophosphate, is
believed to be the immediate biological precursor of the cyclohexanoid
monoterpenes because the cis-2, 3-double bond readily permits cyclization.
Biosynthesis of neryl pyrophosphate could occur by either of
two principal mechanisms: direct cis condensation of dimethylallyl
pyrophosphate with isopentenyl pyrophosphate or trans-cis isomerization...
Based on experimental investigations the present study evaluates flow instability and
void fraction in a fractal-like branching microchannel network with rectangular cross-section. The hydraulic diameter of the channels ranged from 308μm at the inlet to 143μm at the outlet. The flow network used is characterized by set branching ratios for...
A mathematical model of the atmosphere in an airshed is developed, which relates pollutant source distributions and intensities
to the volume of air available for dispersion and to pollutant concentrations
or air quality standards. It can be used as a tool for obtaining
an answer to an air resource management...
Emergency stop controls are essential parts of industrial machinery because they
are designed to stop the operation in case of emergencies without risks to operators,
equipment, products, or facilities. Current guidelines for emergency stop controls have
been formulated based on experience but not on empirical studies.
The main objectives of...
Modern commercial air travel is considered by most transportation specialists to be the safest of all forms of transportation. While safe, any loss of life is tragic and the only really acceptable state of commercial air transport safety is that of 'zero-tolerance' where no accident is acceptable.
Research has demonstrated...
The present research sought to investigate individual differences in the way individuals process intuitive risk judgments. The present investigation is centered on Fuzzy Trace Theory (Brainerd & Reyna, 1991), a developmental dual process theory of cognition which posits two ways in which individuals process information, gist and verbatim processing. 228...
This research presents a u-channel based study of the natural remanent magnetization (NRM), the laboratory magnetization, Anhysteretic Remanent Magnetization (ARM), and magnetic susceptibility (k), from the upper 100 m of International Ocean Discovery Program (IODP) Expedition 383 Site U1543 in the eastern South Pacific sector of the Southern Ocean. Alternating...
The purpose of this study was to examine the problem solving processes of
Thai gifted students when they solved non-routine mathematical problems. The
research questions guiding the study were: (1) What is the nature of the problem
solving processes that Thai gifted students use as they engage in solving non-routine...
Paleoclimate archives have revealed abrupt climate events that are superimposed on more gradual climate changes throughout the last glacial and deglacial periods. The underlying causes of such rapid climate changes are still poorly understood, but the strong expression of these events in northern hemisphere records likely points to climatic mechanisms...
The purpose of this study was to document the development of pre-service teachers' Technology Specific Pedagogy as they learned to teach mathematics with technology during their initial licensure program. The study investigated the pre-service teachers' learning using both a social and a psychological perspective of teacher learning. Two research questions...
This dissertation uses argon geochronology and cosmogenic nuclide surface exposure dating methods to address three research questions. The first question concerns a geomagnetic instability recorded in lava flows on the island of Floreana in the Galapagos Archipelago. Changes in the Earth’s magnetic field (intensity and orientation) occur frequently throughout geologic...
Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in the sediments is poorly understood. Primary magnetizations preserved in deep-sea sediments are known to be...
Magneto- and chemostratigraphic correlation underpins much of our understanding of Earth history, yet typical correlation techniques are neither quantitative nor objective. Within this dissertation, I detail my efforts to develop and apply dynamic programming-based algorithms that accomplish optimal and reproducible stratigraphic alignment. I apply these algorithms to three geologic intervals:...
Molecular phylogenetic and chemical analyses, and morphological characterization of collections of North American Paraisaria specimens support the description of two new species and two new combinations for known species. P. cascadensis sp. nov. is a pathogen of Cyphoderris (Orthoptera) from the Pacific Northwest USA and P. pseudoheteropoda sp. nov. is...
In the environment, it is the unbound fraction of chemical (Cfree) which is able to diffuse across environmental interfaces and biological membranes. It is therefore Cfree which drives many important biological-environmental processes including contaminant transport, bioaccumulation and toxicity. Passive sampling devices (PSDs) offer a simplified and more accurate approach for...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...
Oregon Biography Index is intended to serve primarily as a starting point in locating biographies of Oregonians. We have indexed 47 historical volumes which are either entirely devoted to biographies or have large self-contained biographical sections. The profiles in the books vary widely in accuracy and detail. Birth dates of...
Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers attributable to toxic environmental exposures is between 7% and 19%. To explore the hypothesis that...
Includes 1922 Summer School Graduates.
In the following pages the information, so far as it has been possible to obtain it, is given in the following order for each alumnus: Name, year in which the degree was conferred, degree, course, present occupation, and present mailing address.
This research identified the core related tasks
necessary to graduates with majors in the field of
correctional counseling. The focus was toward job
performance needs in the field. Data were gathered
from a random sample of 151 respondents who
represented employed correctional counselors in the
state of Oregon.
The fifteen...
First year college writing classes originated in the United States at Harvard University in 1874. Since then, theorizing such a course has proven a place of contention, as its purposes and subjects have proven difficult to sort and impossible to agree upon. When Harvard first began teaching introductory composition, literature...
Many authorities state that the development of macabre images were a result of the plague that first swept through western Europe 1347-1350. However, many aspects of the macabre were already in place prior to the plague. A more realistic explanation for the macabre is in the modification of religious belief,...
The Purpose of the Study
The central purpose of this study was to determine the professional
education competencies of selected community college vocational
instructors. Respondents in the study included instructors of business
and distributive education. Major dimensions were the construction
and validation of a questionnaire for community college vocational
instructors;...
The purposes of this study were to determine which research tasks
were necessary to the job descriptions of public school
administrators, secondary and elementary teachers; what task clusters
could be identified for college and university curriculums; what
differences existed between sample groups.
The instrument was validated through the Delphi technique....
Biotic resistance is the idea that native species negatively affect the invasion success
of introduced species, but whether this can occur at large spatial scales is poorly
understood. Here we re-evaluated the hypothesis that native large-bodied grouper
and other predators are controlling the abundance of exotic lionfish (Pterois volitans/miles) on...
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& McCormick, 2001; Friedlander & DeMartini, 2002; McClanahan et al., 2007). This
seems to also be the case
An examination of the technical and historical literature
concerning the discovery and development of antibiotics suggests the
possible existence of an era of discovery. This era appears to have
a well-defined beginning (about 1940) and a well-defined close (about
1960). It is the purpose of this dissertation to examine the...
The study evaluates the effectiveness of a pregnancy intervention model (PIM) developed to improve first trimester prenatal care utilization in a population of 2,694 low-income Medicaid women. Engagement in prenatal care is critical before prenatal care can occur. Early initiation of prenatal care is important for low income pregnant women...
This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
The essays in this collection do not cluster about a specific theme, nor do they present a single unified interpretative approach to issues in the history of American foreign policy. Above all, William Appleman Williams is a teacher. And good teachers are disappointed with conformity. No one would ever come...
Purpose of the Study
In most liberal arts colleges, the majority of students enrolled
are primarily interested in a liberal education. To meet the requirements
of its students, several colleges have introduced a relatively
new program in the sciences; this program is the integrated
science course. This study attempts to...
From the earliest English colonization to the present day, there
has been interest in astronomy in this country. The purpose of this
thesis is to show how the science of astronomy developed in America
from the earliest observations by educated colonists using imported
instruments and publishing in European journals, to...
In 1955 one oceanography report was issued by Oregon State University. The School of Oceanography now issues between 35 and 50 reports per year. This compilation lists in chronological order all oceanographic reports published through 1973. It also lists theses for which degrees were awarded between 1962 and 1973. Both...
The current work sought to develop predictive
models between time-weighted average polycyclic aromatic
hydrocarbon (PAH) concentrations in the freely dissolved
phase and those present in resident aquatic organisms. We
deployed semipermeable membrane passive sampling devices
(SPMDs) and collected resident crayfish (Pacifastacus
leniusculus) at nine locations within and outside of the...
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, 17, and 18.5. A more
focused sampling event was carried out near the former
McCormick and Baxter
The education (particularly graduate education) of Americans
who were active in astronomical research between 1876 and 1941
is assessed for its effectiveness in preparing the astronomers for
careers in research. This period contains three dynamic changes:
the growth of American astronomy in becoming the world's leading
community of astronomers, the...
Many failures of interpersonal communication and coordination in the aircraft cockpit have been found to occur as a result of poor management of flightdeck 'resources'. Crew Resource Management (CRM) is a concept that has evolved within the aviation community to specifically address this issue of resource management. The concept of...
This thesis is a study of the clothing behavior of disadvantaged
adolescents in a rural community as it relates to the factors of social class, security level, peer acceptance and self-selection of clothing.
This study was selected because very little research in clothing
behavior has been done in disadvantaged rural...
The central purpose of this study was to determine various
views of the professional competencies required by community
college student financial aid administrators. Respondents in the
study included a student financial aid recipient, a student financial
aid administrator and a president from forty-five selected community
colleges. The major tasks were:...
This is a bibliography of doctoral dissertations and masters' theses in forestry and related topics issued during the period from July 1981 through June 1990. The colleges and universities included are all accredited by the Society of American Foresters. The actual listings were supplied by the individual institutions. Topics covered...
This study was designed to compare two types
process overview displays for a distributed process
control system. The two types of formats included in
the study were an alphanumeric type (letter) and an
analog type (bar). The study required the subjects to
perform check reading and search tasks.
Thirty-six subjects...
The increasing knowledge of the significance of vitamin B₆ in
human metabolic processes has emphasized the importance of developing
reliable means of assessing nutritional status with respect to
this vitamin. One possible approach to this end is the measurement
of pyridoxal phosphate in blood or plasma, particularly since this
phosphorylated...
Purposes of the Study The study had several purposes, the major one being to
determine the common professional education competencies needed by
community college instructors of trade and industrial education. Two
other purposes of the study were to determine if differences existed
among community colleges according to scores trade and...
This is a listing of both PhD and Master's· theses relating to the areas of forestry issued during the period from July 1976 to June 1981. The
list is arranged first by state, then by college or university within each state. Authors of theses are arranged alphabetically under each of...
The coagulation of effluent from the kraft pulping and
papermaking process was investigated. The amount of material
coagulated from saline mixtures of the effluent is determined
as a function of time, salinity, kraft effluent
concentration, and mixture pH. Individual sources of salinity
include sea water and several different solutions of...
Larval transport and retention of two endangered suckers were studied in a highly
altered lacustrine/riverine complex. The endangered populations of Lost River sucker,
Deltistes luxatus, and shortnose sucker, Chasmistes brevirostris, in Upper Klamath Lake
(UKL), Oregon are the largest remnant populations of these suckers. Downstream of
UKL, the Keno Impoundment...
The purpose of this study was to compare two groups of freshmen
entering Oregon State University in the fall of 1970; (1) men and
women who were uncertain about choices of academic majors at the time
of entry, and (2) men and women who were certain about choices of
academic...
The purpose of this study was to understand how adult learners in an online teacher licensure program selected and used learning strategies, transformed existing strategies or developed new strategies. Also examined was whether the environment itself facilitated or impeded usage of transformed strategies, or development of new strategies. Participants in...
Vitamin E improved liver histology in children and adults with NAFLD who participated in TONIC and PIVENS clinical trials,
but with significant inter-individual variability in its efficacy. Cytochrome P450 4F2 (CYP4F2) is the major enzyme
metabolizing Vit E, with two common genetic variants (V433M, rs2108622 and W12G, rs3093105) found to...
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Digestive and Kidney
Diseases, Bethesda, MD: Edward C. Doo, MD; Jay H. Hoofnagle,
MD; Patricia R. Robuck
The role of science in marine policy, and environmental policy in general, is a debated topic. Currently, there is an increasing desire for transparent and participatory democracy that involves more input from local residents and other non-experts. These demands often conflict with the increasing complexity of problems and the real...
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 November 1967. 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
Two studies were conducted to determine the effect of varying vitamin B-6 (B- 6) status on lymphocyte mitogenic response and pyridoxal 5'-phosphate (PLP) concentration in peripheral blood mononuclear cells (PBMC) in young women. In the first study, women were fed 1 mg/d for the first week and 1.5, 2.1 and...
Processes of metamorphosis, settlement, and growth were examined in Pacific sanddab
using field studies and otolith microstructure. This flatfish transforms at large sizes, has a
gradual metamorphosis, and settles to a nursery on the middle continental shelf. Eye migration
takes 3 months and "metamorphosis proper" which begins after completion of...
Published August 1978. 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
Following World War II, the United States enjoyed unprecedented power and prestige. The wartime alliance with the Soviet Union quickly collapsed amid mutual suspicion and fear, however, resulting in the Cold War. Science was a significant political component in that ideological conflict. In the United States, inspired by Franklin D....