The topic of this study is the cultural impact of the computer in a school. "Impact" is 'defined as the cultural consequences of intended and unintended learning that occur when computers are used in the school. The major theoretical orientations of the work include the concepts of manifest and latent...
Although the biological occurrence of 5'-methylthioadenosine
(MTA) and 5-methylthioribose (MTR) were recognized more than a half
century ago, very little light has been cast on the physiologic significance
of either substance. My studies were designed to extend
our knowledge of the metabolism of MTA and to determine if this pathway...
A dynamic approach to the Bayesian theory of sampling inspection
by attributes for the single sampling case is presented. A model is
developed which assumes a sequence of lots of equal known size and
lots generated by a process operating in a random manner. The model
also assumes constant associated...
The Willamette River Greenway Program was created by an act of the Oregon Legislature in 1968 and modified by a second act in 1973.
The purpose of the program was to protect the natural environment of the river from approximately the foot of the Cascade Range near Eugene, north to...
The purpose of this study was to determine and explain
attitudes toward intercollegiate athletics of undergraduate
students in three academic majors attending Oregon State
University.
The attitudes of a proportionate random sample
consisting of 215 students were measured according to their
responses to thirty-two Likert scale items containing six
sub-scale...
Refractory inclusions from Kaba (CV3) chondrite were studied by
instrumental neutron activation analysis (INAA) and electron probe
microanalysis (EPMA). The inclusions observed cover a wide range of
chemical patterns, mineral assemblages and textures, indicating the
complexity of early solar nebular conditions. The elemental
abundances normalized by Cl chondritic abundances vary...
Instrumental and radiochemical neutron activation analyses supported by electron microprobe mineral analyses (Paul Warren, University of New Mexico) and petrographic observations are presented for approximately forty individual clasts separated from the Kapoeta howardite. These clasts are classified into eucritic, cumulate-like, mafic (plagioclase ± olivine-bearing pyroxenites), pyroxenite, polymict and/or metal-rich and...
Cigarette smoking continues to be one of the country's major health
concerns. It has been defined as the single largest preventable cause of
disease and death in the United States. Although research has indicated that
overall cigarette consumption has decreased in the nation over the past
decades, cigarette smoking remains...
The anatomies of 44 galls are discussed with special attention given to the development, longevity, and tannin content of the nutritive tissues. Within the main section of the thesis, representative galls from the major cecidogenetic groups, with the exception of bacterial and Australian scale
galls, are studied. These include galls...
This study was designed to determine and compare the academic
experiences encountered by both American and foreign students in
master's and doctoral programs at Oregon State University in Winter
term, 1982. The findings of this study are meant to contribute to
the area of international education, by defining and describing...
Extended orientation courses have been shown to be a
valuable means of increasing student retention. However,
little is known about the extent of their use, their form,
their organization or their content. The purpose of this
study was to determine what is being done in today's two-year
college extended orientation...
Using techniques that permit the direct observation of
fetuses in vivo, prenatal behavioral development was
compared among four species in the rodent family Muridae:
the Norway rat (Rattus norvegicus), Mongolian gerbil
(Meriones unguiculatus), cotton rat (Sigmodon hispidus), and
spiny mouse (Acomys cahirinus). Rattus and Meriones bear
altricial offspring, as do...
This study was concerned with determining if: (1) the
effectiveness of residence hall student government varies according to
the perceptions of its role held by residence hall student staff and
government officers, and the hall type and population; (2) the
perception of hall student government held by student staff varies...
The purpose of this study was to examine and compare the effectiveness
of two approaches in nutrition education instruction among culturally
diverse adolescents: the teacher-oriented lecture approach and the
student-oriented instructional design approach. The study was
designed to help culturally diverse students gain a basic
understanding of practices that promote...
A great deal of responsibility accompanies the
person who becomes an academic department chairperson.
However, the new department chairperson is often a temporary
occupant of the chair and will return to a
teaching faculty role within a relatively short period
of time. In addition, there are few training programs
in...
The purpose of this study was to identify significant differences
in body composition, body cathexis, and attitudes toward obesity
of women in various age groups involved in different levels of physical
exercise.
A total of 216 women, ranging in age from 17 to 64, took part in
this study. They...
The purpose of this study was to compare the Chapter I supplemental mathematics program CAI with other Chapter I supplemental mathematics programs, Prescription Learning and the traditional "pull-out" program, in terms of achievement and retention of mathematics basic skills. There were 577 Chapter I students from 12 middle schools and...
The purpose of this study was to identify the effective teaching
characteristics of teachers who participated in the Mentor-Teacher
Program and teachers who did not, and then determine if there were any
significant differences between the three groups of teachers: (1)
Mentor-Teacher Program interns (G.T.A.'s), (2) outstanding O.S.U.
graduates, and...
This study investigated the attitudes toward Little
League Baseball of Little League Baseball players and
coaches in the States of Oregon and Washington and in
Taiwan, Republic of China. An instrument consisting of
the semantic differential assessment questionnaire
measuring attitudes toward Little League Baseball and a
supplemental questionnaire for a...
The purpose of this study was to compare the
reverse-chaining and forward-chaining instructional
methods in teaching a motor task to mentally retarded
individuals. The subjects were selected from Fairview
Training Center, Salem, Oregon. Each of the subjects
was classified as mentally retarded with a range from
moderate to severe retardation....
The purpose of this study was to compare the
reverse-chaining and forward-chaining instructional
methods in teaching a motor task to mentally retarded
individuals. The subjects were selected from Fairview
Training Center, Salem, Oregon. Each of the subjects
was classified as mentally retarded with a range from
moderate to severe retardation....
Seismic properties (P, S velocities and Poisson's ratio) of
young (0.75 m.y.) and mature (110 m.y.) oceanic crust are obtained
by studying explosive refraction data collected in the Pacific Ocean
using ocean bottom and downhole seismometers. A comparison of the
results for the two regions indicates that the upper crustal...
This investigation was motivated by the introduction of the new
nearest neighbour analyses which reportedly provided a better control
of soil gradients than conventional experimental methods.
Three nearest neighbour analyses and six other analyses were
compared with the completely randomized design or the randomized
complete block design in reducing the...
The primary purpose was to examine three selected instructional
plans commonly utilized in teaching global studies in terms of relative
effectiveness in contributing to development of cognitive and
affective growth. Possible identification of relationships between
plans and learning preference was complementary. The plans were
constructed utilizing Edgar Dale's Cone of...
Subregional log market differences are defined and analyzed. Seven demand and seven supply centers are initially specified. Log demand factors inspected are mill capacity, processed wood species, cost and profitability conditions distinguished by product and subregion.
They are preliminarily linked to a regional market model through product price transmission. An...
A pretest-posttest design was used to compare the effectiveness of computer-assisted-instruction (CAI) drill and practice with the effectiveness of same-age peer-tutor drill and practice on promoting mastery of multiplication facts. The subjects were students from three, fourth grade classes in the Reedville School District of Aloha, Oregon. Two fourth grade...
The purpose of the study was to analyze the effect
of experimenter delivered and microcomputer delivered
knowledge of results on the response speed of nonretarded
and mentally retarded public school students. Response
speed was measured for 63 nonretarded students and 63
mentally retarded students. Subjects were randomly
assigned to conditions...
This was an experimental study which compared two different
instructional methods, oral lesson closure versus
written lesson closure, on the achievement of 156 junior
high school students in social studies. This study was
composed of two duplicate experiments. Experiment I was
conducted with 71 seventh grade social studies students at...
Responses to two cycles of mass selection for heading date,
followed by selfing or intermating, were studied in two diverse
winter wheat (Triticum aestivum L. em. Thell) crosses. Selection
was bidirectional, resulting in early and late populations for
each mating system, cycle, and cross. The influence of mass
selection for...
The purpose of this research was to evaluate the
effectiveness of two smoking cessation programs -- one
group and one self-help -- which were developed and are
currently employed by the American Cancer Society.
The research was conducted in a work setting, and
all subjects were employees of the State...
The purpose of this study was to determine if differences exist among NCAA
divisions I, II and III as well as between Athletic Directors and Primary Women Administrators
with regard to the perceived competencies and preparatory coursework required
of athletic administrators.
A mail survey utilizing a six point forced choice...
A computer program called SAPWOOD which possesses the
capability of performing linear or nonlinear, static or
dynamic response including seismic excitation for wood-framed
buildings with semirigid connection systems is
presented in this study. Program SAPWOOD is a modification
of the program NONSAP by adding new elements such as a
linkage...
The purpose of this study was to determine if
differences existed between computer specialists and
computer-using teachers on the perceived level of
importance of selected computer competencies for elementary
teachers. The sample consisted of 102 computer specialists
and 111 computer-using teachers in public elementary
schools of Oregon. Data were gathered...
FISHNET (Facilities Integrated in a Shared Habitat) is a communication subnet architecture utilizing a hybrid application of point-topoint and broadcast communications to achieve a high degree of network performance. This objective is achieved through utilizing a dual bus structure: a data bus and a control bus. The data bus consists...
The association of hyaluronic acid (HA) into a double stranded
structure has been investigated by circular dichroism (CD)
spectroscopy into the vacuum ultraviolet region. The CD of HA changes
dramatically, monitoring a cooperative transition as the dielectric
constant of an aqueous solution is reduced by adding organic solvents.
This structural...
The "Framework for Determining the Suitability of Undeveloped
Land for Use as Cropland" is a decision-making format to assist private
and governmental agency decision makers in categorizing undeveloped
lands, which have been identified as having potential for conversion
to cropland, as to their suitability for use as cropland. The
Framework...
We discuss a mathematical model arising from the following
physical situation. We consider a gas-filled cylinder with a piston
at one end whose motion is determined by the pressure of the gas
within the cylinder and by external forces. Zero mass flux is
assumed at the piston while the mass...
Our purpose is twofold, to derive a 2-dimensional model of streambed erosion and to develop a solution procedure to solve the equations of our model. The flow domain, which varies in time, is bounded above by a free surface and is bounded below by an erodable streambed. An initial flow...
A new method is developed for solving linear optimization
problems based on the RPM network modeling technique which represents
the primal and the corresponding dual models simultaneously
upon a single graph. The network structure is used to eliminate
the need for explicit logical variables and to provide a graphic
tool...
An inspection-repair model is developed that presumes inspection
is hazardous to the system being inspected. The form of the optimal
inspection-repair policy is determined for different ranges of the
model's parameters. The model is formulated as a partially observable
Markov decision process with finite numbers of states and actions.
The...
Being old and female in America often means being alone and poor. To offset this outcome financial preparation for retirement should begin in the pre-retirement years. The purpose of this exploratory study was to assess the financial preparedness of mature, single women as they approach retirement by examining the relationships...
Purpose: The purpose of this study was to determine f the Basic
Educational Opportunity Grant program at Oregon State University
achieved its goal of providing equal access to the benefits of higher
education for students who have low financial resources as compared
to students not receiving student financial aid.
Design:...
Energy expenditures, perceived family well being, and energy
conservation actions were analyzed by family composition and level of
income. Data were from a three state subsample (Arizona, Colorado,
and Oregon; N = 2,633) of a larger stratified random sample of
households in the Western United States. Data were collected in...
The slope parameter "a" of the π ° - electromagnetic transition form factor was obtained from a measurement of the partial branching ratio of the Dalitz decay π° - e⁺ e⁻ y into high invariant-mass electron-positron pairs. The experiment was carried out at the TRIUMF cyclotron laboratory. A beam of...
This thesis considers the problem of estimating the linear
parameters of generalized linear models (GLM), especially binomial
and Poisson regression models, when the explanatory variable is
subject to measurement error. In this situation, the dependence of
the response variable on the observed explanatory variable cannot
typically be modeled as a...
The principal objective of this analysis is the
development of a methodological approach that would
permit a more complete evaluation of the physical and
economic consequences of prohibited species by-catch
(PSC) losses, such as occur in the harvest of groundfish.
To achieve efficient management of the several marine
species involved...
This study focuses on the development of a methodology
to evaluate safeguardability of various processes in the
nuclear fuel cycle.
National and international implementation of safeguards
systems has been investigated. It was concluded that
proliferation is purely a political question that,
hopefully, can be prevented by international norms and
diplomacy;...
The primary purpose of this study was to develop and field test a methodology for the assessment of management development needs in industry. The population used to test this methodology consisted of 113 first-line and middle management personnel in three High-Tech companies in the State of Oregon. A mail questionnaire...
An automated instrument based on a single-board microcomputer
was developed for use in voltammetric analyses. Operator input of
numerous experiment parameters allows any type of voltammetric
analysis to be implemented and multiple scans to be run unattended.
A three operational amplifier potentiostat is used to control
the cell voltage and...
A well-defined, quantitative model for determining soil contrast
was developed to improve soil survey interpretations concerning the
effects of mixtures of different kinds of soils on agricultural land
use. The model was evaluated by determining the levels and reasons
for soil contrast on mapped soil areas representing 5 different
landscapes,...
Teachers and administrators spend many hours of work reviewing
the State of Oregon Guidelines and drafting district guidelines in an
attempt to make the process of evaluation positive and productive.
Most districts agree the primary purpose of evaluation should be for
the improvement of instruction.
The amended state law, ORS...
A model is developed that allows the prediction of the stress-strain
distribution in a mixed carbide sphere pac fuel pin during
irradiation. The model is coupled with a previously developed model
for the thermal behavior of the pin. The one-dimensional (radial at
various axial locations) solution is for quasi-steady pin...
The objective of this study was to assess the effects of
forest management intensity on long-term productivity of Pacific
Northwest Douglas-fir forests. The components of management intensity
included rotation length, timber utilization standard (whole
tree or bole only), method of slash treatment (remove/burn or leave)
and fertilization practice (urea nitrogen...
To facilitate policy making and improve understanding of issues facing the New Zealand forest sector, a spatial equilibrium model was developed for log and lumber trade in the Pacific Rim. Regions included in the model were New Zealand, Chile, Australia, Japan, Eastern Canada, British Columbia: Coast and Interior, and the...
For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
The behaviors of the alfalfa leaf cutter bee - seed
production system under imposition of several management
regimes were studied through the use of a simulation
model that contains mechanisms for the following
processes: 1) immature bee development and diapause; 2)
immature bee mortality; 3) female bee emergence; 4)
nesting...
The virion protein patterns of 72 isolates of infectious
hematopoietic necrosis virus (IHNV) were analyzed by sodium dodecyl
sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of S-methionine
labeled virus. This analysis led to the classification of these virus
isolates into 4 or more types. Type 1 virus is characterized by a
nucleocapsid protein...
Shrews of the "Sorex vagrans species complex" were classified into
nine taxa on the basis of morphologic and morphometric analyses of
2,299 specimens from Washington, west of the Cascade Mountains in
Oregon, and in the Coast Ranges of California. In Washington, Sorex
monticolus setosus and S. m. obscurus occur west...
The major purpose of this study was to examine relationships
among biographical characteristics, psychological characteristics,
motives for returning to school, and the need for student support
services among Reentry Women.
Primary objectives were to:
(1) examine biographical and psychological characteristics of
Reentry Women to determine if significant relationships
existed among...
A composite system of a Markovian Decision Process
with multiple criteria involves both discounting criteria
and nondiscounting criteria. The measurement of the
discounting criteria is chosen to be the total sum of
the payoffs over the time horizon and the measurement of
the non-discounting criteria is chosen to be the...
A new estimator of effective area surveyed is proposed for use
in estimating population sizes or densities. The estimator is based
on the cumulative distribution function for the observed detection
areas and can be used with the data arising from either a line
transect or a variable circular plot survey....
We discuss a mathematical model arising in the filtration of a
fluid through a porous medium. The model leads to a free boundary
value problem whose governing equation depends on the retention
function. A numerical approximation by means of finite elements
is used to present an existence and uniqueness theorem...
A two-dimensional numerical mesoscale model, which ic1udes
radiative and turbulent transfers, has been constructed to study the
formation, development and dissipation of coastal stratus cloud
under an inversion. In the model, the delta-Eddington and emissivity
approximations are used for the solar and thermal radiative
transfers, respectively. K-theory parameterization is adopted...
Purpose of the Study: The purpose of this study was to determine the perceptions of university cooperative education coordinators regarding the importance of tasks identified by cooperative education experts as being critical to the operation of university programs. The study was also concerned with coordinators' preferences regarding the organizational formats...
The Philippines relies heavily on timber product exports for its foreign exchange requirements. In recent years, however, it adopted log export restrictions as a hedge against the rapid depletion of its timber resources. Although conducted independently, its ASEAN partners (Malaysia and Indonesia), have likewise instituted similar restrictions on their own...
A potato plant growth and production model is developed with
the objectives of analyzing management alternatives and exploring
the nature of the early dying syndrome. The geographic area of
focus was the centerpivot irrigated circles of Oregon's Columbia
Basin. A problem analysis of the potato production system of this
area,...
The parameters of separable coupled channels s-wave potentials for the strong
KN interaction are determined from low energy K⁻p scattering data with
additional constraints from π⁻p π∑K° production data. The shifts and
widths of the Coulomb bound states in kaonic hydrogen are calculated with
these potentials and compared with experiment....
The major purpose of this study was to develop and
test a procedural model for assessing work group effectiveness in a community college. The model required a
process to identify differences and commonalities among
work groups perceived to be effective and those perceived
to be less effective. In addition, this...
National statistics indicate that as many as 23
million adults in the United States are illiterate and
another 40 million lack literacy skills necessary to
function effectively or on more than a narrow basis in this
society. People without literacy skills or who have only
marginal reading ability find themselves...
Wave dispersion and fracture are phenomena that involve. mechanisms triggered at the scale of a material's internal structure. Experiments were performed with a candidate material to judge the hypothesis that wave dispersion measurements can be used to nondestructively predict fracture strength. Wood-based particleboard was chosen as the candidate material because...
The genus Deraeocoris Kirschbaum of western America north of
Mexico was revised. Approximately 10,000 specimens from the Nearctic
Region were examined. Taxonomic characters used by previous authors
were reevaluated. In addition to the male parameres, the male vesica
and the female posterior wall of the bursa copulatrix and sclerotized
rings...
The Macrocheles glaber species group contains many
of the common mites which are associated with the dung
of domestic animals. Species in the glaber group have
been investigated for their use as biological control
agents of synanthropic flies.
Over 10,000 slide-mounted specimens of Macrocheles
in the OSU Acarology Collection and...
A rule based transformational model for program development and a metatool based on the above model is presented. The meta-tool can be instantiated to create various program development tools such as tools for building reusable software components, language directed editors, language to language translators, program instrumentation, structured document generator, and...
Effective teacher training programs have been a concern for many
years. While most teacher training programs have been evaluated by
follow-up studies valuable information can be gained by assessing
the needs and concerns of teacher trainees as they progress through
their teacher training experiences. The primary purpose of this
study...
Strip thinning is recognized as a way of commercial thinning
young-growth stands. strip thinning has been used worldwide. The
purpose of this study was to explicitly evaluate the costs and benefits
associated with skyline strip thinning in young Douglas-fir
(Pseudotuqo menzesii Franco) stands in the Pacific Northwest and to
compare...
Agricultural land conversion is a complex process that involves a
matrix of decisions and decision-makers. This study examines the
nature and relative significance of spatial factors that influence the
decisions of farmers who either sell farmland to developers for urban
use or retain it for agricultural use. The conceptual model...
Western hemlock-Sitka spruce forests, where prior precommercial thinning has occurred, constitute one of the most productive
young-growth management types along the Pacific Coast from Oregon to southeast Alaska. These stands are ready for a first commercial thinning entry, however, the costs and benefits of such entries and resulting impacts at...
A generalized mathematical model of ecosystems is
developed. The model begins with the general class of
systems known as state-determined systems, in which the
time-derivative of each state variable is a function of some
subset of the set of all system state variables and
.environmental parameters. A formal basis is...
Mathematical models of the precipitation process are needed to
effectively use historical precipitation data in the design and
planning of engineering projects and for analysis of watershed
runoff behavior. Existing simple models based on the assumptions of
independent, identically-distributed random variables are
insufficient to describe several features of the historical...
The major focus of this research was to examine the factors, both
instructional factors and student factors, that influence student
gains in economic knowledge in economic education. This study sampled
twelfth grade students from randomly selected high schools in the
Williamette Valley of Oregon. The stepwise regression analysis was
used...
The research developed a methodology to code and quantify eye movement patterns as a function of a neuro-linguistic programming strategy elicitation process. Secondarily the research established methodology that identified the degree of consistency among certain certified Neuro-Linguistic Programming Practitioners while they rated eye movements. The study reviewed literature in the...
The present study was a modified replication of the two pioneer
works in the field of sport and ethnic groups by Pooley (1968)
and Tindall (1973). This study investigated whether participation in
an ethnic basketball league in Japanese-American communities affected
the rate of assimilation of two groups of Japanese-American, high-school...
The aim of this study was to determine whether
counselors in training chose various specialties due to
their level of self-concept, counseling style, and
gender. It was hypothesized that there would be a
significant difference in self-concepts, counseling
styles, and gender between individuals who chose family
counseling and those who...
The purpose of this study was to determine the relationships
among leadership style (telling, selling, participating and
delegating), personality preferences (Extravert/Introvert,
Sensing/Intuitive, Feeling/Thinking, Judging/Perceiving and
effectiveness as a consultant teacher. The sample consisted of
thirty-one consultant teachers from Oregon: twenty from the
Portland School District, five from the Gresham School...
This study was undertaken to: 1) determine the
relationship between community college counselor role
congruence and job satisfaction and 2) to consider
factors that contribute to or depreciate counselor role
congruence and job satisfaction.
The subjects consisted of four groups that were
compared in terms of their perceptions of community...
The objectives of this study were to evaluate the feeding value
and potential toxicity of single cell protein (SCP) when fed to
ruminants.
Three in vivo digestibility trials with lambs, one feedlot trial
with steers and one long term feeding trial of high levels of SCP with
sheep were conducted...