The purpose of this study was to identity clothing
purchasing habits of women 60 years of age and over.
Data for this study were obtained from a questionnaire
administered to 94 women, 60 years of age and over, living
in Portland, Corvallis, and Eugene, Oregon. The sample was
analyzed on...
A new method for determining ion exchange equilibrium
data by liquid scintillation counting of the equilibrated solution
phase is described. This method has been applied to determine
equilibria between Dowex 50W X8, a commercial strong cation exchange
resin, and binary and ternary solution containing the varying combinations
of H⁺¹, Cs⁺¹,...
The amine extraction process is evaluated for pulse column
operation. A 0.1 M solution of Primene JM-T (a commercial mixture
of tertiary-alkyl primary amines) in a kerosene-base diluent is
the extractant for thorium feed in aqueous acidic sulfate solutions.
Equilibrium isotherms at room temperature are presented at
aqueous acidities of...
Since the development of the activated sludge process in 1913
many attempts have been made to improve it. One approach has been
to increase the oxygen available to the bio-mass. This study combined the use of elevated pressure and high-shear mixing to increase
the oxygen transfer.
The conventional method of...
This thesis is a study of the dress and accessories of the
Indians on the Pacific Northwest Coast at the time contact with white
man was made, and during the period following contact, until cultural
disintegration was complete.
Information was obtained from historic accounts by early
explorers, and books written...
The various elements of physical geography are commonly
entertained as factors retarding the mineral industries of Alaska. It
has been shown by numerous writers that the mineral industries of
Alaska are, indeed, in a difficult situation. Only the petroleum industry
and sand and gravel for construction are of much significance...
The objectives of this study were (a) to measure the amount
of cross-pollination caused by three bee species at 10, 20 and 40
rods distance from a foreign pollen source, (b) to measure the effects
of bee species, planting pattern and season on broad sense heritability
estimates for seed yield...
Nutritional studies with Acetobacter suboxydans indicated that
when isoleucine, lysine, methionine, serine and arginine were singly
omitted from a complete amino acid mixture, no growth was obtained.
However, the organism could grow on single amino acids like glutamic
acid, histidine and proline. No growth was obtained with ammonium
sulfate as...
An experimental investigation has been made of the effect of
vibration on heat transfer from a cylinder in crossflow. The
cylinder used was 3/16-inch in diameter and was sinusoidally
oscillated in the vertical direction by a mechanical drive mechanism
while immersed in an open water channel. Nominal amplitude
ratios, a/d,...
From May through November 1963, a mosquito survey was
made in the city of Corvallis, Oregon. The information
obtained dealt with the species of mosquitoes found,
their seasonal occurrence and the location and nature of
their larval habitats. A quantitative and qualitative
analysis of larval and adult mosquito collections by...
Wheat is an important cereal crop in the Willamette Valley of
Oregon and the stiff-strawed, high yielding winter varieties are
the predominate types grown although spring varieties are not uncommon.
Because of the mild, often open winters; present in the
Willamette, it is not unusual to be able to seed...
The Euler-MacLaurin sum formula has appeared in the titles
of two quite recent papers whose authors were primarily interested
in certain applications. In this paper a somewhat different approach
to the myriad of formulas for summation, integration, differentiation,
etc. , is based on the simple identity which defines the set...
The primary purpose of this study was to assess the influence
of information on Old Age, Survivors and Disability Insurance in motivating
homemakers to do further family financial security planning.
Planning was measured in terms of estimating OASDI benefits and
total income available for retirement and for survivors.
The subjects...
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...
The purpose of this project was to study the reactions of 1-(α-pyridyl)-3-buten-1-ol (compound I) and to determine whether or
not the products of some of its reactions are quinolizinium salts.
Reaction of compound I with bromine or iodine yields halide
salts (when no external cooling is applied) instead of the...
Urban centers, in part, are in the process of deterioration. Consequently, land values in these areas, both in dollars and in contribution to the community, remain dormant or depressed. There seems little doubt that there will be greater pressure for urban land. Urban renewal is one method of returning deteriorated...
The problem was to determine (1) to what extent the Industrial
Arts Program had expanded in facilities, enrollment and teachers
from 1952 to 1962, (2) to compare the status of the Industrial Arts
Program in 1952 with that in 1962 to determine growth and trends,
and (3) to determine to...
A primary objective of the management practices of the Oregon
State Game Commission is to maximize and sustain the annual harvest
of salmon and steelhead by sportsmen fishing in Oregon. Assessment
of these practices is dependent upon an accurate determination of total
annual sports harvest throughout the state.
Present total...
A field study was conducted in the Willamette Valley near
Corvallis, Oregon, to determine the influence of seedling rate,
drill row spacing, grass association, and variety on the yield
of dry matter and quality (crude protein content and leafiness)
of alfalfa. Treatments included seeding rates of 7.5, 10, 15 and...
A method of locating electric transmission line towers using
ground survey data in a digital computer program is presented in this
thesis. The towers are located for maximum spacing subject to the
constraints of available tower heights, forbidden ground areas, minimum
ground clearance, and specified conductor tensions. The digital
method...
Bacillus cereus excretes large amounts of penicillinase
into growth media during incubation, hence the
widely-used penicillin selection technique for isolating
biochemical mutants of bacteria is not applicable to this
species. Genetic transfer in B. cereus has not been
reported; this is partly due to the lack of an effective
isolation...
Thermal expansion is one of the most frequently measured
physical properties of materials. One of the important methods
of detecting and measuring these changes is dilatometry, which
is measuring the thermal expansion of the specimen and relating
the specimen's expansion to its temperature.
Four major types of dilatometers are commonly...
Growth data compiled in this study were collected by using
pigs farrowed during the fall, 1963 and spring, 1964 farrowing seasons
of the Oregon State University swine herd. Thirty-seven trios
of light-, medium- and heavy-birth-weight suckling pigs were used to
determine the effect of birth weight on subsequent rate of...
The present study was undertaken to determine, by measurement
of nuclear DNA, the degrees and frequencies of ploidy in the
last larval instar of the moth Galleria mellonella Linnaeus. While
such data have been amassed for a wide variety of vertebrate tissues,
few studies have been concerned with invertebrates and...
The diffusion process in a variable density, turbulent
flow is a factor which greatly influences the waste
disposal characteristics of tidal estuaries. Waste disposal
from cities and industries, is posing an increasing
threat to the estuarine environment. Accurate prediction
of the effects of proposed waste outfalls in well-mixed
estuaries (which...
Contracting nucleolar vacuoles are a general and consistent
feature of somatic tobacco cells growing in microcultures. Nucleolar
vacuoles were studied in cells from callus tissues of two
single-cell clones, H-196 and H-239, of hybrid tobacco (Nicotiana
tabacum X N. glutinosa). Vacuoles periodically contracted either
completely or incompletely, apparently releasing a...
Some important factors that affect the dimensional
control of oxide films on silicon were studied. Both N- and
P-type silicon with resistivities in the range of
0.014 to 200 ohm-cm and a (111) surface orientation
were employed in this experiment. The etching rates of
silicon dioxide in hydrofluoric acid (111)...
Three species of true firs in the Pacific Northwest--Abies gran-dis, grand fir; A. amabilis, Pacific silver fir; and A. lasiocarpa,
subalpine fir--are severely damaged or killed by an imported insect
pest, the balsam woolly aphid (Chermes (Adelges) piceae Ratz.), Infestations of this insect cause abnormalities in the wood and, in...
Atrazine, atratone and ametryne are asymmetric s-triazine
herbicides used pre- and post-emergence on many crops. Under
conditions unfavorable for microbial activity, these compounds
may persist in the soil for long periods of time.
This study was conducted to determine the influence of the
soil microflora upon atrazine, atratone and ametryne...
The primary purpose of this study was to investigate the formal
preparation currently required and desired for teachers of lower-division collegiate courses in public community colleges in the western
United States and to make recommendations for the preparation of
such teachers in Oregon. The identification of the functions of institutions...
The demand for transistor circuitry to perform within more
exacting specifications has created the need for a method to accurateIy predict transistor circuit performance. A method utilizing an
electronic digital computer for the analysis of direct-coupled transistor
amplifiers is explained in this paper.
The dc bias levels and the mid-band...
The purpose of this study was to test the hypothesis that four-year
old children would better remember what happened in science
experiments, and the basic concepts involved in them, when presentation
of the experiments involved an element of surprise. Surprise
for this study was considered as a situation in which...
The purpose of this study was to develop a program of studies
for Amity Union High School that would adequately meet the needs of
the students. By providing suitable information for the local board
of education, administration, teachers, and parents, it is hoped that
appropriate revisions, extensions, or modifications would...
A multivariable model describing the system response
(weld tensile strength of 6061-T6 aluminum) of a percussive
stud welding system as a function of five natural
(external) system variables was developed. The five natural
system variables were 1) static weight of the drop-shaft (W), 2) initial stud base height (H₀), 3)...
Concern over the apparent lack of education for personal
and family living for high school students prompted
this study to discover the beliefs of British Columbia Home
Economics teachers regarding classes for Grade 12 students.
A questionnaire was constructed to obtain the opinions
and beliefs of Home Economics teachers concerning...
Purpose of the Study:
The purpose of this research was to study the school districts
in Umatilla County as they existed in 1962-3 and to formulate a
guide for reorganization of these districts into sound efficient units.
The following sub-factors were considered essential to this research,
and were dealt with...
This paper discussed the human electrocardiogram, the instrumentation
used to graphically record it, and the design and performance
of a specialized system for vector cardiography: the Vector Electrocardioscope
(VECS) System. The introduction reviews in considerable
detail the pertinent known physiology of the heart, especially the
electrophysiology responsible for the genesis...
The mechanism of continuously chlorinated silver-silver
chloride electrode performance was studied by using a wiped, rotating,
partially submerged, cylindrical silver cathode. The cell
performance using a zinc anode was measured, and the rate of
chlorination of silver was calculated for several water saturated
chlorine atmospheres.
At 75°F, with a chlorine...
Presented in this thesis are the results of a recreation survey
which was carried out in the Diamond Lake and upper Rogue River
area of Oregon, during the summer of 1961, by use of interview-type
questionnaires. A total of 400 questionnaires were completed
in the Diamond Lake Campground and Picnic...
The ratio of the absolute infrared intensity, A₃/A₂, for the
parallel mode (2336 cm⁻¹) and the perpendicular mode (658 cm⁻¹)
of a nonpolar solute molecule, carbon dioxide, has been determined
in a nonpolar solvent, Nujol. The solution ratio (5.0) which has
been extrapolated to zero concentration is less than the...
The development of the Lee strain of type B influenza
virus was shown to be inhibited by puromycin in tissue culture of the chick embryo chorioallantoic membrane. The
compound is an antibiotic of unique structure which has
been reported to possess a broad range of biological activity
against unicellular and...
Instruments which combine the features of a digital-to-analog
conversion and a linear-to-logarithmic scale change usually perform
the digital-to-analog conversion first. These instruments are accurate
to within five or ten percent over ranges of five or six decades.
This thesis presents a method which uses combinatorial logic
to perform the linear-to-logarithmic...
It was observed that certain myoelectric surface
potentials are of a pulse nature. The pulses have nearly
the same exact waveshape, but are asynchronously
repetitive.
Physiological evidence indicated that myoelectric
pulses are concurrent with the activity of a small unit
of organized muscle fibres (motor unit). The electrical
activity of...
A field experiment was conducted to study the influence of cutting
treatments on the yield and quality of non-irrigated alfalfa in
western Oregon.
Spring clipping treatments included (1) not clipped, (2) clipped
when 6 inches high and (3) clipped when 12 inches high. The hay harvest
criteria were (1) near...
The spectrophotometric method for the determination of the
acid nonextractable flavin in the proteolytic digest of the trichloroacetic
acid precipitate from the heart muscle preparation has been
examined for the interference of the degraded hemeproteins. The
proteolytic digest was chromatographically separated into the heme
and flavin fractions. Spectrophotometric determinations made...
A liquid sulfur dioxide battery, such as K/KCl SbCl₅ (0.25
molar) + IBr₃ (15 %wt) + SO₂ (1)/carbon matrix is shown to have an
open circuit voltage greater than 3.70 volts and an initial voltage of
3.15 volts, decreasing to 2.40 volts in 10 minutes at a current density
of...