The bee mites Varroa jacobsoni Oudemaris and Euvarroa
sinhai Delfinado and Baker (Family Varroidae) are reported
for the first time from Thailand. V. jacobsoni was found
parasitizing colonies of Apis cerana indica F. and A. mellifera
L., E. sinhai was observed in association with drones
of A. florea F.
The...
Of 2,122 marine fishes belonging to 36 species collected in the
vicinity of Newport, Oregon, 541 belonging to 8 species were infected
with hemoflagellates. Four species of trypanosomes and three species
of cryptobias were found in offshore fishes, but no hemoflagellates
were observed in fishes from Yaquina Bay.
Trypanosoma pacifica...
Pastures consisting of mixtures of subclover (Trifolium
subterraneum) and grasses have responded to sulfur fertilization
on many sites in Douglas County, Oregon. The objectives of this
study were to examine specific changes in forage quality which occur
as sulfur is applied in excess of the amount required for maximum
yield...
Cyclopropenoid fatty acids (CPFA) are natural components of
cottonseed oil, a major food oil in the United States. The ability of
CPFA to cause abnormal biochemical and physiological effects when
fed to laboratory and farm animals has prompted an investigation of
their effects on mice.
Between 0.05 and 0.55% CPFA...
Laboratory studies were conducted under different temperature and moisture regimes to evaluate the effects of temperature and moisture on stand establishment and seedling characteristics associated with stand establishment. Percent stand and days to 25% emergence were used as indexes of stand establishment. Seedling characteristics analyzed were: shoot length, coleoptile length,...
There has been no toxicologic proof that the long-term, low-level
exposure of man to chlorophenothane (DDT) is linked with an
increased susceptibility to toxicity or disease. Acute pretreatment
of rats with 75-100 mg/kg DDT has been demonstrated to potentiate
CCI₄-induced hepatotoxicity in that species (McLean and McLean,
1966). Since the...
Time of stand establishment is a critical factor affecting
yields of winter wheat and barley in the fallow-crop rotation areas
of the Pacific Northwest. Farmers in this winter-rainfall region
are dependent on residual moisture in the seed zone for germination,
because significant precipitation does not usually occur until
after the...
Twenty- six mountain goats (Oreamnos americanus), located between the Lostine River drainage and the East Fork Wallowa River drainage of the Wallowa Mountains, were monitored from June 1972 through June 1973. The age composition of the population was 76.9 percent adults and 11.5 percent each yearlings and kids. The addition...
Kinetics of cell division in the intestinal epithelial proliferative cells (cell nests) of the rough-skinned newt, Taricha granulosa, were studied using tritiated thymidine autoradiography and the mitotic arresting properties of colcemid. Percent labeled mitoses (PLM) curves were drawn from the autoradiographic data from two separate experiments in which the newts...
Use of backcountry areas in winter by crosscountry skiers, snowshoers, climbers, snowmobilers and others has increased rapidly in the Mt. Hood area of Oregon in recent years. With this increase in use a larger segment of the user population is being exposed to potential a.,pl.H11 Winger. purpose of this study...
This dissertation is an attempt at developing a method for the analysis and estimation of the effects of disruptions due to uncertainties. Such uncertainties may result from design changes and engineering drawing delays in large-scale, complex, research and development, or construction projects.
In order to provide management with a simple...
This thesis extends Wagner-Whitin's Planning Horizon Theorem
to discount situations in multiperiod multiple-item dynamic lot sizing
problems. Three heuristic techniques are developed using the Least
Unit Cost Method, Silver-Meal Method, and Inoue-Chang Method. The
three techniques are described and compared in terms of their effectiveness
in dealing with the dynamic...
A new, computer oriented system for automatic, in situ
monitoring of water quality is proposed which makes full and effective
use of modern computer technology. The main objective of this thesis
work was the development of the concept for in situ computer controlled
experimenting as a reasonable and effective means...
Resource Planning and Management (RPM) network is a graphical
representation of input-output relationships among activities and
resources within a system. Both resources (events) and activities
(decisions) are explicitly represented as nodes in all RPM networks.
Depending upon the relationships being depicted, RPM networks can
be classified into Relational (R), Precedence...
This dissertation treats information theory and its applications
to the general area of decision making. Specifically, three areas are
covered; (1) information theory applied to Bayesian analysis,
(2) estimation using multi-factor information channel models, and
(3) information theory applied to Markov chain analysis.
A major portion of this dissertation concerns...
This thesis presents a linear programming package that uses an
algorithm and data storage method efficient enough to solve a medium
sized linear programming problem (250 variables and 100 constraints)
on a minicomputer with small core memory space (4000 bytes).
In this routine the problem is formulated by the use...
Some of the problems concerning the present educational programs
which confront the institutions of higher education are, reviewed.
Resources allocation is at the root of the issue.
Budgeting orientations are presented with special emphasis on
Planning Programming Budgeting Systems. PPBS is still in its
developmental stage in the field of...
A discrete multi-facility plant location algorithm developed by Basheer Khumawala is modified and applied to the location analysis of offices of the State of Oregon Health Facilities Licensing and Certification Section (HFLC). Choice of the algorithm is based upon a literature survey of available computational procedures which compares their relative...
High specific activity tritiated thymidine (40-60 Ci/mM) and
autoradiographic techniques were used to study cell renewal systems
in the freshwater mussel, Margaritifera margaritifera.
Groups of mussels were injected with tritiated thymidine
(1.0 [μ Ci/g) and then serially sacrificed. Tissues from selected
areas of the body were routinely processed, and slides...
This thesis presents an introduction to Marketing Research concepts,
relates Operations Research to Marketing Research and discusses
the limitations of each. An Information Theory approach based
on Shannon's fundamental theorems and extended by Kunisawa is
applied to one-factor and two-factor marketing problems.
The objective of one-factor information channel models is...
A multi-phase methodology is proposed as an aid to
resource planning and management activities in a high
technology company faced with an uncertain marketing
future. An attempt is made to incorporate both quantifiable
and non-quantifiable factors.
The problem analysis phase of the proposed methodology
employs Resource Planning and Management (RPM)...
The purpose of this study was to determine the effects of
tritiated seawater (HTO) on selected developmental stages of the
goose barnacle, Pollicipes polymerus. Barnacle embryos were
cultured in Millipore cytology monitors with HTO concentrations of
0, 10⁻⁵, 10⁻³, 10⁻¹, and 10¹ μCi/ml. After 22 days, hatching was
complete and...
Line balancing is concerned with the optimal assignment of work
elements to individual operators in an assembly tine of a mass producing
system.
This paper summarizes the assembly line balancing terminology,
the computational methods, and objective functions applicable to a wide
variety of assembly lines. Single and mixed-model situations for...
Line balancing is concerned with the optimal assignment of work elements to individual operators in an assembly line of a mass producing system. This paper summarizes the assembly line balancing terminology, the computational methods, and objective functions applicable to a wide variety of assembly lines. Single and mixed-model situations for...
Branch-and-Bound algorithms are developed to optimally
schedule static single- and multi-stage job-shop productions. The 'corollary' of the study is to experimentally verify the effectiveness of
branch-and-bound algorithms to overcome the "curse of dimensionality" due to the combinatorial nature of job-shop scheduling problems.
The static scheduling problem contemplated in this dissertation...
Effects of stochastic variations of parameters in the planning
and design of a particleboard production system are studied. The
solution obtained from a linear deterministic optimization model is
compared against both the solution derived from the traditional
stochastic programming techniques and the distribution of optimal
objective function values obtained from...
The determination of the number and locations of optimal supply
points in centralized distribution systems is considered from both
theoretical and institutional aspects.
The Euclidean distance problems that typify the theoretical
school of location search are discussed and seven different solution
techniques are investigated: the Torricelli, linear programming,
exhaustive search,...
A system's analysis study utilizing Resource Planning and
Management System network methodology, integer programming, and
goal programming is presented. The integrated approach is developed
and applied to the rare metals production process of the Oregon
Metallurgical Corporation (OREMET). As defined by OREMET
management, optimization of the production process required the...
Pattern recognition techniques and their application to a
consumer behavior study are presented. The Local Majority Method
(LOMAME) utilizes a set of prototypes and corrective factors which
undergo a training cycle before being utilized as pattern classifiers.
Its advantages over the Minimum-Distance Method and the Fix
and Hodges Method are...
The viability of incorporating optimization within budgeting
methodologies is examined.
Resource Planning and Management System and optimization are
proposed as tools to enhance the planning and control functions of the
budgeting process. Three hypotheses are proposed: (1) Integer
Programming, Integer Goal Programming and Dynamic Programming
can be substituted in place...
Algorithms capable of automatically drawing Resource Planning and Management (RPM) network models from standard Linear Programming data files are developed. An RPM network is a unique graphical representation that is capable of representing both the primal and the dual model of a mathematical programming problem on a same network model....
The overall objective of this research project was to evaluate
the metabolism of benzo(a)pyrene (BaP) by the European flat oyster
(Ostrea edulis)-bacteria system. Individual oysters exist in nature
as "systems" with commensal microorganisms and should be recognized
as such when the metabolism of a specific environmental contaminant
is being studied....
Two separate studies were conducted during this research
project. Oysters were irradiated with 500 and 1000 rads and 5, 10,
20, 50, 75, 100, 150, and 200 krads in the first study in order to
determine the effects of ionizing radiation on survival and growth
rates. Two periods of high...
An analytical tool to assist municipal planners in evaluating
alternative planning strategies is proposed. Schlager's Land Use
Plan Design Model provides the linear formulation of the problem,
Goal Programming is used to create alternatives, and Brown and Kirby's
Measures of Urban Performance serve to evaluate the alternatives.
Resource Planning and...
A Resource Planning and Management System (RPMS) and Goal
Programming algorithm are integrated into a tool for optimization of
resource allocation in university academic departments. The integrated
approach is then applied to the management models of the
Industrial and General Engineering Department at Oregon State
University and of the Industrial...
There is a wide variety of developed, undeveloped
and proposed outdoor recreation areas and facilities in
Benton County. Recreation areas and facilities are supplied
by federal, state, county, city and private agencies.
Each agency plans for recreation development independently.
The Benton County Parks Department and the city of Corvallis
use...
The applicability of electromyographic biofeedback toward alleviating
test taking anxiety was examined along with the effects of
relaxation training on general anxiety, locus of control, test performance,
and muscle tension during a test. The Achievement Anxiety
Test (AAT) was administered to 271 freshman psychology students.
Students whose scores indicated high...
The study measured and compared the philosophies of education of OSU graduates who are experienced teachers of vocational education and undergraduate vocational teacher trainees on an essentialist-progressive scale at OSU. The objectives of this study were to (1) determine if experienced teachers of vocational education and undergraduate vocational teacher trainees...
This is a listing of PhD and Master's theses in the area of forestry which have been issued during the period of July 1966 to June 1973. There are a few earlier theses included in this list which were not in previous listings.
The list is arranged by state and...
This is a listing of PhD and Master's theses in the area of forestry which have been issued during the period 1956 to June 1966. There are a few earlier theses included in this listing which were not in previous listings.
The list is arranged by state and then by...
This list is a continuation of the work begun by Oregon State University Librarians who compiled the first list in the 1950's. Since that time many lists have been issued and several are now out of print. However, it is hoped that by late 1978 the Oregon State University Press...
The arrowtooth flounder has been an important flatfish in Oregon's trawl fishery since the late 1930's. However, it primarily has been used as mink food rather than for human consumption. This is because of its soft, fatty flesh, which is difficult to fillet and quickly becomes “mushy”. The name arrowtooth...
The rex sole has been an important flatfish in Oregon's trawl fishery since its beginning in the 1930's. This fish is easily recognized by its characteristic long pectoral (chest) fin on the eyed side of the body.
Oregon landings of rex sole have gradually increased over the years. Initially rex...