Results of recent studies on Piagetian cognitive development,
though equivocal, showed that the architectonic of formal operational
schemata is not possessed by a sizeable percentage (up to 52%) of adolescents
and young adults. The purpose of the present study is two
fold: (i) To assess the cognitive levels of a...
CP1100/GPIB Interface is an interface between the "General
Purpose Interface Bus", which is an implementation of the Universal
Bus described in IEEE Standard 488-1975, and Unibus. This interface
enables TEKTRONIX CP1100 series controllers to operate
GPIB- compatible instruments connected to the General Purpose
Interface Bus. The designer can now incorporate...
The Purpose of the Study: The major purpose of this study was to determine if there were differences among the opinions of participating employers, previous participating employers, and non- participating employers concerning cooperative vocational education,. The hypothesis that there is no significant difference among the mean scores for the three...
Esophageal fistulation, stomach content analysis, fecal analysis,
and ocular-estimate-by-plot are four of the most publicized methods
of determining the diets of large herbivores. The principal objective
of this study was to compare the relative values of each of these
methods based upon information collected from bi-fistulated (esophageal
and rumen) sheep...
This study explored the relationship among marital role expectations,
religiosity, and other variables including age, dating status of
subjects, living arrangement, marriage plans and parents' marriage.
Data were obtained from a sample of 460 Oregon State University
students in April, 1976. They were primarily young students, 18 - 19
years...
This study examines a limited number of selected themes in
Judeo-Christian, or Western, religious thought and their implications
for man's use of land, with the objective of discovering the influence
of Western religion on attitudes toward nature and land.
Five themes are examined: dominion of man; stewardship; contempt
for, and...
The capabilities of the Tektronix Model J2C/7J20 Rapid Scanning
Spectrometer for the determination of molecular species resulting from
Otto cycle combustion were experimentally investigated after a literature
search of the subject area. Combustion of hydrogen-air, carbon monoxideair,
and gasoline-air mixtures in the combustion chamber of a Cooperative
Fuel Research engine...
The life history of the strawberry root weevil, Otiorhynchus ovatus (L.), on peppermint was studied in the Willamette Valley of Oregon to provide the information necessary to develop effective control measures. Adult weevils emerged from the soil from late May until mid- June and were active in the field until...
Genetic and environmental factors affecting age of first estrus,
wool production, reproduction and lamb production were examined in
eight groups of crossbred ewe lambs from two birth years. The 399
ewe lambs whose first year production was analyzed were from eight
crossbred groups resulting from mating North Country Cheviot, Dorset,...
The Corps of Engineers is in a position to dominate the formulation
and implementation of public policy at a given local level. The
position is based on the Corps' capability to influence the decision-making
process through the exercise of force by means of eminent
domain procedures, the assumption and demonstration...
Based upon the Pearson Type VIII distribution function,
a general retention function which relates the saturation to
the capillary pressure in disturbed soils has been discovered.
This simple and yet complete function has been
shown to describe precisely the imbibition as well as the
drainage branch of the retention curve....
The purpose of the present study was to determine the association
of initial weight, average daily gain, days on feed, percent total
digestible nutrients (TDN) and percent digestible protein in the ration
with USDA carcass grade, marbling score, conformation score, back
fat thickness and area of longissimus dorsi of beef...
This study describes the development and analysis of a manual
for management and supervisory personnel involved with employee
training programs in sanitary food production in the frozen fruit and
vegetable industry. The physical aspects of the plant, microbiology
of frozen foods, and employee training are discussed in relationship
to the...
The familiar equilibrium between 1, 7- octadiene and cyclooctene
at temperatures exceeding 3000, indicates that an ene-retroene
process could be used as a six atom ring expansion method. To test
this possibility we prepared both cis and trans isomers of 1, 2- diallyl-
1, 2 -bis (trimethylsiloxy) cyclohexane and pyrolyzed...
Unit cell or pin cell calculations form the basis for
most nuclear core modeling. Because of this, it is of primary
importance to perform these unit cell calculations
accurately.
The subject of this thesis is the analysis of one of
the major approximations made in unit cell modeling, the
infinite...
The retro-ene reaction of 2-vinylcyclohexanols occurs readily
in the vapor phase at 400-450° producing unsaturated carbonyl
compounds in good yields. The starting- materials were prepared in
general by the carbenoid addition reaction of ethyl diazoacetate,
appropriately substituted cyclohexene, and copper catalyst to
produce bicyclic esters which were reduced to the...
Interval arithmetic is applied to the problem of obtaining
rigorous solutions to integral equations on a computer. The
integral equations considered are the linear Fredholm equation of
the second kind and the nonlinear Urysohn equation. Techniques are
presented which enable the computer to find an approximate
solution, prove the existence...
The sensitivity of Bacteroides nodosus, causative agent of sheep foot rot, to 24 selected antimicrobial agents was tested. Many contaminants ordinarily associated with foot rot lesions were sensitive to lincomycin while B nodosus demonstrated resistance to this antibiotic. A concentration of 1.08 μg of lincomycin/ml of basal medium optimally inhibited...
Nonlinear large deflection finite element analyses of a fabric
reinforced embankment on muskeg were performed to predict fabric
tension and the effect of fabric stiffness on embankment deflections.
The predicted fabric tensions were compared with the results of a
sliding block analysis, and show this simple analysis requires further
correlation...
Seven commercially prepared brands of lactic streptococcal
phage inhibitory media were obtained from their manufacturers.
Comparisons between the different media were made with respect
to buffering capacity, ability to support lactic streptococcal growth,
ability to suppress bacteriophage replication, and ability to support
Leuconostoc growth. Nonfat milk was used during experiments...
The objectives of this study were to determine the diets of
cattle at risk to DABPE on stress and inciting pastures and to determine
if segregated feeding groups of cattle displayed differential
susceptibility to DABPE.
Stress pastures were classified and mapped by plant communities
and segregated feeding group areas. Cattle...
This study develops a general discrete flow model which is
discrete both in time and space. A stirred tank network model
(continuous time compartment model) is summarized and then compared
with the discrete flow model. Both models make use of a
fractional input matrix with elements representing the fraction of...
Objectives of the Study
The study attempted to accomplish the following:
1. Document the fundamental or conservative nature of
early American higher education, especially the nine
colonial colleges, and verify its seemingly irrepressible
progression toward liberalism.
2. Determine the nature of variables associated with the
process of liberalization.
3. Isolate...
Tansy ragwort (Senecio jacobaea L. ) is a poisonous weed which
infests alfalfa fields in western Oregon. Studies were conducted to
evaluate the effectiveness of asulam (methyl sulfanilylcarbamate)for
control of tansy ragwort in alfalfa and to elucidate factors responsible
for its selectivity. In seven replicated field trials in 1973 and...
The equations of motion of an elastic cable suspended in a
viscous medium from two arbitrary points are derived. These are
then linearized for the undamped, inextensible case, and it is found
that the equations describing the in-plane motion of the cable are
then independent of the equation describing the...
PURPOSE OF THE STUDY
This study developed a model which identified mathematical needs
in various vocational technical programs. This model provides a
method which can be used to develop an adequate mathematics curriculum
to support occupational offerings at community college/technical
institutes, and can also help high schools and the colleges/technical...
Two multiple strain lactic streptococcal starter concentrates
were examined to determine whether or not elimination of one of the
three component strains, by addition of its specific phage, resulted
in disproportionate inhibition of acid production (strain dominance).
Both starters showed dominance when tested three to four weeks after
freezing and...
First the theory of electron-phonon contributions to the de Haas-van Alphen effect in normal systems (pure metals in the nonsuperconducting state ) is reviewed.Then a new derivation of the de Haas-van Alphen oscillations for an interacting system is given.The result is applied to electron-phonon scattering to show that contrary to...
The kinetics of the chlorination of copper in the
thin film range at room temperature was studied by using
a wiped, rotating cylindrical copper cathode which was
partially submerged in an electrolyte. Experiments were
conducted at three different partial pressures: 1.00,
0.44 and 0.21 atm. of chlorine gas which was...
The magnitude of the effect on decay heat of neutron
capture by fission products for hypothesized "worst case"
irradiations was examined. This effect is shown to be
small (less than 2 percent) for times less than 1,000
seconds and a simple model is presented for estimating
the magnitude of the...
A model of a squirrel cage induction machine, d.c.-
link power supply and centrifugal pump is developed and
used in the design and evaluation of a perturbation feedback
control system for a sewage pumping station. A comparison
of the simulation model of the induction machine
and a laboratory machine to...
The purpose of this study was to examine self-perceived
success as experienced in a learning environment, and its association
with self esteem. The relationships between pretreatment-self
esteem, posttreatment-self esteem, and perceived success experienced
in a five-week clothing construction course were investigated.
Measures of perceived sewing ability, perceived success,
and course...
The purpose of this thesis is to represent and calculate unsymmetrical
secondary faults on a grounded wye-to-delta transformer
bank.
This thesis is specifically concerned with the secondary connections
often encountered in industrial installations. Faults on these
systems have not been adequately investigated.
Three types of faults are considered, namely:
1....
In recent years almost all states have legislated educational
and licensing programs to protect the welfare and property of citizens
engaged in outdoor recreational pursuits. Such programs exist
for automobile, motorcycle, airplane, and snowmobile operators.
However, boating continues to be one of the major recreational outdoor
activities where operators of...
Oregon College of Education (OCE) is a small, liberal arts college with a special emphasis on the preparation of teachers. Its student population is predominantly from Oregon's Willamette Valley area. OCE developed specific objectives for its teacher education program and the purpose of this study was to determine whether the...
The study had four objectives, the major one being the identification
of the common professional competencies for adequate performance
as a Baptist clergyman. A second objective was to determine
the common professional competencies needed by Baptist pastors and
ministers of education. The determination if significantly different
competencies were required for...