Histones are presumed to be of chromosomal origin and provide
both structural and functional elements for chromatin. In like
manner the ribosomal proteins are of ribosomal origin and have
analogous roles. Considerable controversy over their cellular roles
exists because of the inability to compare directly both groups of
proteins. In...
A circuit designed to generate and maintain a constant magnetic
flux is presented by using a sample-data control system, instead of a
continuous control system.
A Hall generator is used as the magnetic sensing element, and
is operated with a pulse bias to allow a large output. The output of...
This study is a comparison of the extent of acceptance by peers
in first-born children and last-born children.
The following hypothesis was tested: There is no difference in
peer acceptance of the first-born child as compared to the last-born
child.
The subjects were students between the ages of 11 years...
The purpose of this investigation was to compare some of the
properties of a spore-forming mutant of Bacillus cereus 569R with
the wild type. The strains were grown under identical conditions in
liquid medium. The mutant, strain 45, was characterized with
respect to growth rate, pH changes in the medium,...
Studies on the absorption of C¹⁴ carboxyl labeled 2, 4-dichlorophenoxyacetic
acid by a susceptible plant (bean) and and resistant
plants (corn and bluegrass) indicated that the chemical was readily
absorbed by all species of plants from a foliar application. Approximately
22% and 42% of the applied chemical was absorbed by...
The primary purpose of the study was to identify the demand
for processed salmon from the West Coast. The basic approach in
the demand analysis was to identify those variables that determine
the supply and demand for processed salmon. An econometric model
was established containing the supply and demand equations...
It is often necessary in communication systems to detect very
small signals that are buried in noise. One device used to accomplish
this is a lock-in amplifier. Initially the theory of operation is considered.
Then the circuit design of a low cost lock-in amplifier is
given. The amplifier, employing linear...
The use of the exponential-transfer-characteristics of a transistor
junction as a means of giving a logarithmic sweep calibration to a
sampling oscilloscope is presented. The prior work in logarithmic
converters leading up to the use of the transistor's transfer properties
is explored. A circuit adapting a sampling oscilloscope to a...
An apparatus and procedure are described for investigating
selective adsorption from a binary vapor mixture as a function of
pressure. The technique measures both total mass adsorption and
adsorbed-phase composition.
Development of the method is outlined. Possible sources of
error are analyzed and are found to be either nonexistent or...
In this thesis a method is presented for maintaining the left
ventricular wall stress of the human heart at a constant level during
the systole (active portion of the heart's cycle). This constant stress
level makes it possible to take isotonic measurements on the heart
muscles.
The left ventricle of...
The purpose of this paper is to show that arithmetic
is consistent if Euclidean geometry is. Specifically, a
model of Peano's axioms [2] is defined in the space of
Euclidean geometry, where Hilberts axioms [3] are taken
to be the axioms of Euclidean geometry.
This paper is concerned with the design of a 21-bit
metal-oxide-semiconductor field-effect transistor (MOSFET)
integrated circuit static shift register.
This circuit consists of three separate 1, 4, and
16-bit static shift registers constructed on a single
monolithic chip, each with independent input and output
terminals.
Type D flip-flops are used...
In recent years the types of engineering data accumulated by many telemetry systems have become so diversified and complex, and
the environment in which these systems operate has become so restricting
that telemetry systems with increased capabilities and decreased
size are becoming a necessity. Advances in integrated circuitry
techniques satisfy...
Soils developed on volcanic ash exhibit several unique properties
not commonly observed in soils formed on other geologic
material. Low thermal conductivities, low volumetric heat capacities,
slow transport phenomena, excess macro-drainage and
development of unique suites of clay minerals are some properties
thought to be directly related to the vesicular...
An analog simulation of the postural control system (PCS) of a
dog is used to illustrate how modern systems simulation can be applied
to a study of complex life systems. Even though many bold
assumptions were required to adequately simplify the PCS model, the
simulation provided intuitive insight and gave...
The three-phase squirrel-cage induction motor is rugged, compact,
inexpensive, can be totally enclosed and requires little maintenance.
Its use as a variable speed drive has been limited, however, by the
state-of-the art of control components.
The advent and continuing development of the silicon controlled
rectifier and associated solid-state components has...
At the time of this study 19 states have entered into agreements, one state agreement is pending and one state has submitted its proposal for entering into an agreement with the Atomic Energy Commission for the purpose of assuming regulatory authority over (1) byproduct, (2) source and (3) special nuclear...
An extensive literature survey investigated methods and approaches
for evaluating intangible economic factors at the strategic
and tactical levels of managerial decision making. These sources
provided: 1) the background for a theoretical decision making
algorithm developed for comparing alternative economic proposals
for effectiveness at the strategy levels, and 2) a...
A study was conducted to determine the quantity and distribution
of bark debris resulting from log rafting. Three distinct problems were
studied: (I) the quantity of bark dislodged from the logs while being
placed in the rivers and during transport in log rafts; (2) the percentage
of the bark that...
The stability of a third-order, nonlinear system with a
saturation characteristic was studied by applying the second method
of Liapunov, which is the most general approach currently used for
dynamic systems.
This thesis presents (1) the analysis of a third-order, nonlinear
system, (2) a suitable Liapunov function, generated by the...
The relationship of x-ray tube housing temperature to duty
cycle was studied for a superficial therapy x-ray installation, a
dental radiographic installation, and a rotating-anode medical diagnostic
installation. Thermistors were used to measure the tube
housing temperature at points selected to be representative of
thermal conditions on the surface of...
In this thesis, characteristics of coupled trigonometric transmission
lines are studied, based on the general theory of nonuniform
transmission lines. The four-port transmission matrix parameters
of the coupled trigonometric transmission lines are derived from the
even and odd mode waves. Two applications of coupled trigonometric
transmission lines are presented; one,...
The paper is a study of (i) the realization of the gyrator,
(ii) active filter synthesis using gyrator.
Several realization methods of the gyrator are summarized.
A practical gyrator composed of two operational amplifiers was built
and tested. The experimental results are shown. Two RC-gyrator
synthesis techniques are derived and...
The purpose of this study was to investigate the revival trends
in furniture design during the period 1959-1969, and to understand the
relationship of these adaptations to contemporary cultural objectives.
An understanding of the design characteristics from the originals to
the modern derivatives is useful for those who wish to...
An instrument was developed which performs analysis of the
oxygen content of air by means of a commercial polarographic oxygen
electrode. The oxygen analyzer is part of a portable instrument
which converts the current from the oxygen electrode into a pulse
whose width is proportional to the oxygen concentration. This...
The presence of diacetyl in sufficient concentrations to cause
off-flavor in beer is a serious economic problem affecting the brewing
industry. Research was carried out in an attempt to provide an
industrially acceptable method for reducing diacetyl to safe levels
in beer, with additional applications to frozen concentrated orange
juice,...
The primary purpose of this thesis is to determine the economic nature of low incomes on low-income farms in western Oregon. An economic model containing variables that contribute to family income is developed for farm operators in the study area. Regression analysis is used to determine the significant variables contributing...
This study was an evaluation of fabric serviceability and consumer
acceptance of polypropylene blend knits. A review of
literature indicates a trend toward polypropylene blend fabrics for
wearing apparel, specifically for knits. The purpose of the research
was to compare two experimental double knit fabrics, a 50 percent
Creslan/Herculon blend...
Farmer cooperatives have often maintained inflexible capital structures which severely restrict members' freedom to allocate their own capital in a most profitable manner. This study was conducted to provide insights into how cooperative finance programs might be modified to provide increased capital and, at the same time, be more acceptable...
This paper is a study of the design of an integrated MOS addressing
circuit by using the modified two-phase dynamic shift register. This modified circuit is compared to the conventional two-phase
dynamic SR and discussed briefly. The resulting circuit shows
several advantages to improve the essential conditions of integrated
circuit...
The removal of ozone from an air stream by activated-cocoanut
charcoal was investigated from the literature and experimentally.
The experimental investigation showed that activated-cocoanut charcoal
can be used to remove concentrations of ozone less than 1.0
ppm with high efficiencies. The mechanism of the ozone removal
appeared to be a...
Morphological changes which occur during tentacle formation
have been described in the colonial athecate hydroid Cordylophora
lacustris. These changes involve an outpocketing of mesoglea into
a finger-like extension of the hydranth. Gastrodermal cells line the
inside of this extension of mesoglea while ectodermal cells cover the
outside. Electron micrographs reveal...
Pants have become a seemingly necessary part of the average
American woman's wardrobe and may be worn for nearly every occasion.
However, many women have indicated that when conventional
methods of construction were used for pants-making, the pants did
not conform to their expectation of good fit. Observation showed that...
The problem of analyzing the general linear, time-varying
system is investigated. The approach starts with four different
system representations: the differential equation, transform representations,
signal flow graphs, or block diagrams. Given one of
these system describing representations, it is shown what the
engineer can find out about the system and...
The purpose of this study was to assess changes in attitudes
toward behavioral understanding, marital role expectations, and self
concept in a selected group of high school girls. These subjects
were enrolled in a one semester child development course which
included observation and participation experiences with young children.
The subjects...
The purpose of this study was to assess change in self concept,
marital role expectation, and behavioral understanding in high
school students enrolled in a family life course.
The subjects were two groups of high school students from an
only senior high school in a school district. The experimental group...
The equations which govern the motion of a rigid satellite in
an inverse-square force field exhibit a weak coupling between the
translation of, and the rotation about the center of mass. The effects
of this translational-rotational coupling on the equilibrium positions
in a circular orbit, and their stabilities are examined....
Polychaete annelids from 48 benthic samples containing over
2000 specimens were identified. Samples were taken with either an
anchor dredge or an anchor-box dredge from a 15 station transect
(44° 39. 1'N) that ranges from 800 to 2900 meters in depth. Sediment
subsamples were collected and analyzed for organic carbon...
Righting behavior was examined in the asteroids Henricia
leviuscula and Leptasterias aequalis by repeating a standard laboratory
righting trial with a large number of individuals of each species,
and analyzing the observations made by statistical methods. Detailed
observations on the righting method, including leading pairs of
arms and righting time...
An analysis of the amounts of calcium carbonate, organic carbon,
quartz, and the rates of sediment accumulation in hemipelagic sediments
off Oregon has revealed that the accumulation rates of the total
sediment, organic carbon, and quartz were at least twice as high in
the late Pleistocene as they were during...
A cruise of the R/V Yaquina off Oregon during June and July of
1968 provided data for a study of the relationships of hydrographic
and chemical parameters to estimates of biological activity. The
emphasis was on carbon and nitrogen reservoirs. Phytoplankton pigments,
nitrogen and C/N ratio were used along with...
The purpose of this study was to determine the effect of clearcut logging on stormflow by analysis of characteristic parameters of individual storm hydrographs. Parameters considered included height-of-rise, peak discharge, volume and time-to-peak. The hydrologic data were derived from experimental watersheds of the Alsea Study located in the Oregon Coast...
In this paper the characteristics of multi-conductor transmission
lines have been investigated for a variety of termination conditions
by using the differential equations and matrix methods.
Equations showing the characteristics of traveling waves along loss-less
multi-conductor systems are derived.
Line parameters were evaluated by experiments and by calculations.
The results...
An intensive chemical investigation, that includes the
determinations of salinity, oxygen, nutrients, pH, alkalinity, and
total carbon dioxide of the Columbia River plume off the Oregon
coast in July 1967 shows the following unique features:
1. Along the axis of the river plume both the salinity minimum and
temperature maximum...
This thesis introduces a technique for approximating to a desired
degree of accuracy a linear parabolic equation of two spatial
dimensions with given initial data and prescribed boundary conditions.
The technique is generalized to non-linear parabolic equations.
It is stable for all mesh ratios, and it is second order accurate...
This thesis is a study of the clothing selection practices and
related problems of a selected group of low-income women enrolled
in work-training programs conducted at Lane Community College,
Eugene, Oregon and Southwestern Oregon Community College, Coos
Bay, Oregon. Sources of clothing, sources of information influencing
selection of clothing, types...
It is generally recognized that biochemical information is of
great importance to microbial taxonomy. This is particularly true
in the case of catabolic behavior of microorganisms in utilizing
glucose and allied compounds. Once the pathways operating in a
species are identified, and the relative participation of these pathways
is determined,...
The abundance of copper was determined in four to six one-gram
specimens separated by a distance of several inches from each
of 23 large chondritic fragments (greater than 1 kg) via instrumental
neutron activation analysis and counting of the annihilation N-rays of
⁶⁴Cu. It is believed that an accuracy of...
The critical buckling load for round tapered columns with variable
end fixity is presented. The theory used is presented together
with the general solution for the resulting differential equation. This
general solution is solved by use of a computer. The computer program
written specifically for this thesis, the flow chart,...
Attempts were made to rear Crambus topiarius Zeller,
Euchromius ocellus (Haworth), Crambus bonifatellus (Hulst) and
Crambus trisectus (Walker) on non-aseptic meridic diets containing
wheat germ or pinto beans as basic constituents. Various methods
of diet presentation and types of rearing containers were used. Shell
vials and plastic cups used as...
Of 149 wild animals from two western Oregon river drainage
areas and other localities in which "salmon poisoning" disease (SPD)
is enzootic, including ten mammalian and two avian species, 79
harbored Nanophyetus salmincola, the SPD vector. The shorttail
weasel, Mustela erminea; river otter, Lutra canadensis; spotted
skunk, Spilogale putorius; Norway...
Density measurements of molten solutions of thallium
and tellurium have been made over the temperature range
220 to 650°C and the composition range 31 to 69 atomic
per cent thallium. The Archimedian method was employed
since it is readily adaptable to performing measurements
over wide ranges of temperature and composition...
Colleges and universities must be continually seeking means to
improve their financial management. One improvement would be to
lessen the amount of monies the state-owned university reverts to
the state at the end of the fiscal year. Such reversion is caused by
numerous departments, each with financial autonomy, incurring
greater...
Unit dose drug distribution systems have been established in a
number of hospitals during the past several years. Such systems show
promise in providing better and safer patient care. They also seem to
minimize the non-professional aspects of drug handling by nurses,
thus enabling them to spend more time with...
Criteria for the design and construction of a prototype streamside
incubator for Pacific salmon (Oncorhynchus) eggs and alevins
are described. Operation of the prototype and methods of transporting
freshly spawned salmon eggs from distant sources are reported.
Effects of water velocity, stocking density, and substrate type
on the growth, development,...
A method is presented for developing a detailed non-linear
voltage regulator system model representation for use in power
system stability studies. This model is implemented within MIMIC,
a digital simulator program, with a particular set of data which
could be taken from field tests. Results are presented from simulations
of...
A study of the Pacific coast Band-tailed pigeon (Columbia fasciata Say) was conducted from August 1966 to September 1968. Bands recovered from 14,787 pigeons banded in the Pacific Coast states, 1929-65, were used to determine distribution, migration, and mortality. Data on the age structure of populations were obtained from 3,596...
Samples of benthic organisms off the coast of Oregon, taken
from depths varying from 50 to 2900 meters, have been analyzed in
terms of diversity at a given station, and similarity and ecological
distance to other stations. Estimates of epifauna abundance were
also made. In the analysis an important distinction...
The nature of the bioluminescence of Gonyaulax catenella is
similar to that observed for other dinoflagellates in culture, showing
photoperiod-entrained rhythms of luminescence and stimulability
with relatively constant luminescent capacity during scotophase. G.
catenella is very sensitive to stimulation and photoinbibition. The
nature of the response to stimulation by bubbling...
Most studies of bacteria in water have concerned public health; little attention has been given to organisms which are indigenous to
the aquatic environment. Myxobacteria are known to occur in soil,
in the marine environment, and several have been studied in relation
to diseases of salmonid fishes. However, little information...
In this thesis a system analysis compares power development
plans for the 1980 decade in the Mekong countries i.e. Laos, Thailand
Cambodia, and South Vietnam. Given the decision to invest in power
development, an economic evaluation is made of complete system
developments rather than just hydro or thermal plants. The...
This paper investigates the proposed preliminary designs of
two gymnasiums with respect to gamma radiation shielding due to
radioactive fallout. For each building a determination is made of
the protection offered from radiation fallout. If the degree of protection
is below the minimum value set by the Office of Civil...
Purposes and Method of Study
The purpose of this study was to find out if tenth grade girls
were aware of the probability that a majority of them would work at
some time during their lives, and if they planned to prepare for this
possibility. A questionnaire was designed and...
Six, recent clear cut areas were selected in the Douglas-fir
zone of the Western Cascade Range of Oregon to determine the
environmental and nutritional effects that snowbrush has on the establishment
and growth of Douglas-fir seedlings.
One thousand eighty milacre sample plots on the six clear cuts
were used to...
Development of long-range nuclear weapons in recent years and
the subsequent threat of nuclear war has led to an increased awareness
of the need for civilian protection. Adequate shelter design can
provide substantial protection against delayed radioactive fallout.
Protection can generally be greatly increased by more massive roof
construction to...
Effects of four handling methods with varying holding times and
temperatures on the acceptability and safety of two commercially
prepared frozen entrees, tuna and noodles and chicken al a king,
as used in a residence hall were studied. The four methods were:
I. oven heated and served at once; II....
The effects of two patterns of logging on the intragravel environment were studied in three Oregon coastal streams between June 1968 and June 1969. The watershed of one stream (Needle Branch) had been clearcut, and that of a second stream (Deer Creek) cut in staggered settings in 1966. A third...
This study sought a better understanding of the mechanism of
the near-ultraviolet inhibition of microsclerotia and pigment formation
in the fungus Verticillium albo-atrum Reinke & Berth. by observing
changes which occur in certain major biochemical components:
lipids, chitin, RNA, DNA, protein carbohydrates, and pigment.
The most important finding was that...
A study was made to evaluate the effect of different rates of N
fertilization on Nugaines wheat. The variable N treatments provided
different N regimes as a basis for evaluating potential diagnostic
tests for assessing the N status of the wheat plant. The crop was
grown in Lane county during...
The work in this thesis involves the development of specimen preparation techniques for the observation with an electron microscope of alpha
particle tracks in cellulose nitrate plastic.
Both direct observation
using thin films and replica production techniques were investigated.
Direct observation of the alpha tracks was accomplished by cutting
thin...
This dissertation deals with end and side launching of marine
vessels. Its object is three-fold: first, to review several successful
techniques of launching and to describe the problems involved;
second, to derive and explain the calculations needed for assuring a
successful launching; and third, to propose several computer programs
which...
The effect of entering streamflow on currents of a density
stratified reservoir has been studied in a laboratory model to
provide insight into the prediction, control, and maintenance of
quality water discharge from a thermally stratified reservoir.
Twenty experiments were performed using various concentrations
of a sodium chloride solution to...
This study was undertaken to evaluate the dry-weight-rank and
microscopic point methods for determining botanical composition on
perennial ryegrass (Lolium perenne L.) - subclover (Trifolium
subterraneum L.) and tall fescue (Festuca arundinacea Schreb.) -
subclover pasture mixtures throughout a grazing season.
Botanical composition was determined on a monthly basis from...
Studies were conducted on the causes of low germination of
monogerm sugarbeet seed grown in western Oregon. Emphasis was
placed on the identification and measurement of endogenous inhibitors
as related to the germination and vigor. Both qualitative and quantitative
analytical methods were applied to examine the organic substances
in the...
Previous research has shown that activated carbon is effective
in inactivating certain herbicides applied as a preemergence treatment.
Studies were conducted in the greenhouse to determine the
influence of various factors on the ability of activated carbon to
inactivate herbicides applied after carbon application. Field studies
were conducted to determine...
Numerous fishery researchers have attempted to preserve viable fish sperm, but only three investigations were successful in the fertilization of fresh eggs with frozen and thawed sperm: Blaxter (1953); Hoyle and Idler (1968); and Graybill and Horton (1969). Significant advances reported in this thesis were: the development of suitable life...
Let A be an n x n real, symmetric matrix with distinct characteristic values λ₁, λ₂,...,λɴ. Then there exists an orthogonal matrix P such that PAPᵀ = Λ = (λi). Given a small symmetric change, ∆A, in the matrix A, we can calculate the resulting changes, ∆P, and ∆Λ, in...
Myxobacteria are known to occur in the aquatic environment,
however, little information is available regarding the taxonomy of
these organisms. This investigation was initiated in an attempt to
classify a group of fresh water cytophagas on the basis of biochemical
and physiological as well as cultural and morphological characteristics.
The...
The mapped area is part of the middle Deschutes Basin of central Oregon, which lies in the northwestern corner of the High Lava Plains physiographic province, between the Cascade and Ochoco Mountains. It is underlain by Cenozoic lavas, tuffs and sediments of continental origin. The oldest rocks in the sequence...
The central Bond Creek area is on the north slope of the Wrangell Mountains approximately 15 miles east of Nabesna, Alaska. The entire area is underlain by plutonic rocks of the Monte Cristo batholith of probable Jurassic age. Early members of this complex are hornblende diorite, quartz diorite, and granodiorite...
A thick sequence of intercalated andesite and basalt flows, tuffs, and volcanic sediments crop out in the Fly Creek Quadrangle and the north half of the Round Butte Dam Quadrangle. This sequence was deposited in the ancestral Deschutes River Valley along the east flank of the Cascade Range during the...
The thesis area consists of 65 square miles located in the southeastern part of Meagher County, Montana. Ranging in age from Precambrian to Quaternary, the strata exposed in the area have a total thickness of about 11,100 feet. Low grade metamorphic rocks, mainly slates, and limestones represent the estimated 2,000...
Growth and reproductive patterns of the common lanternfish,
Stenobrachius leucopsarus, are described by length frequency
analysis, otolith analysis and examination of ovaries.
Length frequency analysis, employing the probability paper
method of analysis of polymodal distributions, of three and one-half
years of monthly midwater trawl collections off Oregon showed that
fish...
The purposes of this study are:
1. To determine guidelines for producing 8mm continuous
loop films through the production of
loop films for home economics classes.
2, To show how the 8mm loop film as a visual technique
is suited to home economics, especially
to individualize instruction.
3. To compile...
Southern pine and Douglas fir veneer samples were dried in air
under the following conditions: air temperatures were 350, 600, and
750°F; air velocities were 50, 100, and 150 feet per second, and
angles of impingement of air against the veneer surfaces were 0°,
45°, and 90°. The resulting drying...
Radiation induced heat generation rates of several nonfissionable materials were measured calorimetrically in a nuclear reactor environment. The calorimeter was uniquely designed to allow many materials of grossly different heat generation rates to be measured. heat transfer characteristics of the calorimeter were determined analytically and experimentally. Materials were chosen to...
Objectives of this study were to determine differences in
herbage production of three seral stages of three habitat-types.
Field studies were conducted in 1967 and 1968 on the Squaw Butte
Experimental Range.
Twelve, 400-square-foot, paired exclosures were established
in each habitat-type. Herbage was clipped from four, 48-squarefoot
samples in one...