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...
In this memoir, by alumnus and Zoology Department instructor William J. Gilstrap, the author details various aspects of his life, including: childhood in Missouri, student experience at Oregon Agricultural College (OAC) in the 1890s, and his medical practice in various Oregon locales. Gilstrap also describes in this narrative the origins...
Podosphaera macularis causes one of the most important diseases, powdery mildew, of Humulus lupulus (hop). If left unmanaged, hop powdery mildew can cause total crop loss due to disease or browning of hop cones rendering the cones unmarketable to buyers. The Hop Powdery Mildew Infection Risk Index (HOPS) is heavily...
Net photosynthesis was measured for photosynthetic light efficiency and capacity on two-year-old plants from eight different seed sources in three measurement periods. The measurement periods corresponded to the physiological periods 1) prior to bud swelling, 2) after needle elongation, and 3) predormancy. Measurement period differences in both photosynthetic efficiency and...
Rapid acid production by lactic streptococci used in the manufacture of fermented dairy products is essential to the economy of the
industry and to the public health of consumers.
There remains to
developed, however, an adequate laboratory procedure to detect and
distinguish between slow and fast strains of these bacteria....
The objective of this work was to determine and optimize the resolution of a neutron sensitive Multi-Channel Plate (MCP) detector in order to determine its capabilities in radiography and tomography. The Oregon State University, Neutron Radiography Facility added an MCP Detector in 2012 in order to analyze these capabilities. The...
Fluorescence of adenine, guanine, thymine, cytosine, and uracil
has been detected at room temperature in neutral aqueous solution
using a digital signal accumulation technique and right angle fluorescence
detection from solutions with absorbances between 0. 4 and 0. 7.
The quantum yields are respectively 2.6 x 10⁻⁴, 3.0 x 10⁻⁴,...
Rates of apparent net photosynthesis were measured on a sample
of Rocky Mountain Douglas-fir consisting of eleven one-year-old seedlings
from each of the thirteen different seed sources. Secondary
observations of needle length, needle weight, and needle number
were also obtained. A formula derived through step-wise multiple
regression of the secondary...
The essays in this collection do not cluster about a specific theme, nor do they present a single unified interpretative approach to issues in the history of American foreign policy. Above all, William Appleman Williams is a teacher. And good teachers are disappointed with conformity. No one would ever come...
The synthesis of superheavy element evaporation residues is described by the product of the capture cross section, fusion probability, and survival probability. Capture cross sections are moderately well known. The fusion probability is the least known with many uncertainties. The formalism for the survival probability is known, but the parameters...
The major historical studies that have examined American
biology have emphasized the development of experimental biology at
the end of the nineteenth century. In this characterization, the
descriptive branch of biology has often been treated as less than
important and, in several cases, as a hindrance in the application
of...
The Modern era, roughly the time between 1860-1930, brought about a significant restructuring of artistic mediums. From the canvas to the page, artists of the twentieth century turned towards collaboration as a means by which they could reconfigure their works. Painters, writers, and dancers, borrowed aesthetic techniques from one another...
Gallium arsenide shows excellent promise for terahertz generation using mid infrared.
This is for two reasons. First, the indices of refraction for the terahertz (nTHz=3.61 at 1 THz) and mid infrared (nopt=3.431 at 2 μm) are close allowing a long interaction length.
Second, the linear absorption is low at terahertz...
¹³⁰ Sn and ¹²⁸Sn were separated from mixed fission products.
The decay of these isotopes were studied with Ge(Li),
LEPS, and plastic scintillator detector systems in single
and two parameter coincidence modes. The decay scheme constructed
for ¹²⁸Sn decay has levels at 0.0 (5+), 45.7 (4+),
77.8 (3+), 152.9 (2+),...
The effect of Endothal (3, 6-endoxyhexahydrophthalic acid),
sodium pentachlorophenate (Na-PCP) and TD-47 (di-N, N-dimethylcocoamine
salt of Endothal) on the microbial populations, ammonification,
nitrification and respiration in six different soils was investigated.
It was found that Endothal at 20 and 200 ppm had no adverse
effect on the microbial population, ammonification,...
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...
The species composition of soil microfungal populations in-adjacent
stands of red alder, conifers, and mixed alder conifer correlated
strongly with the dominant vascular vegetation. A total of 92
species were isolated: 55 from the alder stand; 45 from the conifers;
and 46 from the mixed alder-conifer, with few species (16,...
Two numerical methods are presented that can be used to solve
second order nonlinear ordinary differential equations with periodic
boundary conditions. One of these methods is a shooting method developed
solely for the periodic problem. The other, "quasilinearization,"
is a method applicable to a wide variety of problems. It is...
This paper discusses the design, construction, and use of a prototype expert system shell, EXE. EXE is non-conventional in that it does not provide a traditional forward or backward chaining inference mechanism. Instead, it allows the domain expert to control the logic flow of the system in a dynamic fashion....
An important disease of Vitis vinifera production in Oregon and all other commercial growing regions is powdery mildew of grape, caused by the obligate fungal pathogen Uncinula necator (Schwein.) Burril. Grape production can be characterized as a long-term investment in the establishment and maintenance of the vineyard. Establishment times have...
The scale of pest and disease dispersal is often larger than the scale of individual farms. Therefore, an individual grower’s response to pests and diseases can affect and is affected by their surrounding growing region. Individual growers are also not isolated, and engage in various forms of information gathering, sharing,...
The fusion reaction ²⁰⁸Pb (⁵⁰Ti, xn) ²⁵⁸⁻x Rf (x = 1-3) was studied to determine PCN (probability that the mononucleus system evolves to form a compound nucleus inside the fission saddle point) and to establish the value of Wsur (survival probability) for the given reaction experimentally. The fission excitation function...
The yields of 235 projectile-like and target-like fragments from the interaction of ¹³⁶Xe with a thick target of ²⁰⁸Pb at a center-of-mass energy, E[subscript cm], of 450 MeV were measured using γ-γ-γ coincidence data from Gammasphere and off-line γ-ray spectroscopy. The results give an expansive picture of the production cross...
This thesis examines depictions of medievalism in three central texts: Sir Walter Scott's Ivanhoe, Mark Twain's A Connecticut Yankee in King Arthur's Court, and George R.R. Martin's A Game of Thrones. Each of these texts provides an entry point for exploring the ways in which English and American writers have...
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...
Purpose of the Study: The purpose of this research was to present a documentary analysis of school district reorganization in Oregon during the period from August 2O, 1957, to July 1, 1964, and to develop a plan for further school district reorganization for Oregon. The major elements of this study...
William James came of age at a time of great social and intellectual change in the United States. During this period, new professional identities proliferated, and a new culture of professionalization developed with important ramifications for conceptions of individual and social identity. Professionalization was also closely related to key intellectual...
The study of the social dimensions of Shakespeare's art is represented by the work of Mikhail Bakhtin, C.L. Barber, Robert Weimann, Edward Berry, and Michael Bristol. Their work analyzes the background in Elizabethan social practices and popular dramatic traditions that contribute to the form, structure, and meaning of Shakespeare's comedies....
This history concerns the scientific contributions of Charles
Babbage (1791-1871) to mathematics, to the invention of calculating
machines, and machine tools, to the development of scientific ideas
through a wide variety of scientific investigations and his involvement
in several different scientific reforms. Babbage considered himself
a philosopher in the broadest...
Bull Run Reserve was used as a case study of conflicts
in management. The Bull Run Watershed supplies the Portland
Metropolitan area with its water. Conflicting goals led to
various management decisions. Sustained yield logging was allowed
within the watershed. Concern that continued logging
would lead to increased turbidity and...
Herbicides were tested for the selective control of bentgrass in
Kentucky bluegrass turf under three levels of competition. Best control
in zero competition was obtained with a winter treatment of
bromacil at two pounds per acre. Under circumferential and direct
competition, best control was obtained with a summer and fall...
Human settlement patterns are the ways in which people locate themselves over the terrain in their area of occupation. Settlement pattern prediction attempts to define and understand the factors in culture, technology, and environment that shape the spatial distribution of habitation sites for a given group of people. A systematic...
This investigation was initiated in an attempt to delineate
some factors affecting the adsorption of poliovirus to soil particles
in seawater. The results could have significance in the development
of assay procedures for viral contaminants in natural waters.
A sample of marine sediment, obtained from an estuary near
Purdy, Washington,...
Environmental crime around the world, such as trafficking in illegal timber, is directly related to political instability. Traffickers exploit weak, fragile, and chaotic political circumstances to illegally extract high-value commodities, challenging the extent to which conservation goals are achievable in resource rich developing countries. Rosewood is the largest traded endangered...
Two hundred thirteen mammals were captured on two study areas
between April 1976 and August 1977. Samples of urine and kidney tissue
from 202 mammals were cultured on media suitable for leptospiral growth.
Leptospiral organisms were not isolated from tissue cultures. Sera
from 88 mammals were examined by the microscopic...
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,...
This thesis presents the results of sampling experiments
investigating the properties of estimates of the
mean life of a radioactive source in the presence of a
constant unknown background.
An iterative estimation procedure is used where the
estimates are maximum liklihood estimates with asymptotic
variances. The estimation procedure was programmed...
The purpose of this thesis was to evaluate two methods of estimating 1953 costs of producing strawberries. To accomplish this the following steps were taken: 1. To estimate production costs in 1953 by using 1947 input data and 1953 prices for those inputs, (Method 1); 2. To compare the results...
This thesis is mainly a collection of historic data regarding the Union Pacific Railroad together with the opinions of various persons regarding the Union Pacific; also opinions on corporations in general and railway corporations in particular.
Negative feedback has become ubiquitous in science both as a
technique and as a conceptual tool. As a technique, negative feedback
has a long history; devices based in its use were made in
antiquity. It has only been during the last century, however, that
rigorous quantitiative methods have become associated...
A study of stress transfer near the ends of the whisker in a simulated whisker reinforced composite material was conducted by using
photoelastic techniques. The composite material studied was
αAl₂O₃ whiskers in an aluminum matrix. The photoelastic models
used consisted of a scaled-up macroscopic stiffener embedded in a
three-dimensional epoxy...
The present study characterized physiological responsivity during moral elevation, or elevation, a prosocial emotional state triggered by witnessing displays of altruism and moral beauty. Participants watched video stimuli that induced elevation, or amusement as a control condition, while heart rate (HR), respiratory sinus arrhythmia (RSA), skin conductance responses (SCR), and...
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...
Considerable evidence exists to suggest the notion that selected
personality traits may be related to specific aspects of academic
achievement. This study was directed toward the investigation of this
relationship in the case of non-science majors enrolled in a college
course in physical science.
Personality was assessed with the California...
The purpose of the study was to investigate process and
stability issues in intermarried families utilizing data
from a group of American Indian intermarried families and a
group of endogamous European American families. Stability
issues such as marital satisfaction and overall problem
solving were investigated by comparing scores between the...
An attempt was made to demonstrate isozymic forms of esterase,
MDH, LDH and GPDH and the variation in enzyme pattern with increasing
age in the thoracic muscle, appendage muscle and hemolymph
of the American cockroach, Periplaneta americana. Sampled specimens
of both sexes were aged one through seven days, two weeks...
The purposes of the study were to determine the relationship which existed between higher cognitive level question wait-time range and student achievement, and whether students perceived biology student teachers who used a 1-4 second wait-time range as being either more or less effective than biology student teachers who used a...
In their modern context questions of heredity have come to be
closely aligned with theories of evolution because all such theories
require the presence of heritable variation. Thus the need for an
understanding of a source of variation and a mechanism for its inheritance
became very apparent with the general...
The performances of newly-established gravel incubation systems designed to use unfiltered water for production of unfed salmon fry were evaluated at Netarts Bay, Oregon, and at Little Port Walter, Alaska.
Research was divided into two phases. The first consisted of laboratory studies to develop fry quality testing procedures and to...
The abolition of the Atlantic slave trade was a long struggle in
British Parliament between the slave trade defenders and the abolitionists.
The Act of 1807 officially abolished the Atlantic slave trade, eighteen years
after the initial abolition proposal to Parliament. William Wilberforce was a
member of a committee that...
A herd of re-introduced California bighorn sheep (Ovis canadensis
californiana) was studied from 15 June 1976 to 31 August 1977.
Thirteen major and seven minor habitats were delineated and described.
Habitat use by bighorns was observed throughout the study and
a habitat preference value (H.P.V.) was calculated based on use...
Recent declines in nesting success of some fish-eating seabirds in Alaska have been attributed to declines in availability of certain schooling forage fishes (e.g., capelin Mallotus villosus, Pacific sand lance Ammodytes hexapterus, and Pacific herring Clupea harengus pallasi). These fishes tend to have high lipid content compared with other species...
Purpose of the Study The purpose of this investigation was two fold: (1) to determine the effects of a Summer Institute for Cultural Awareness upon the self-actualization of experienced teachers from four separate high schools, and (2) to determine the success of the Summer Institute for Cultural Awareness in terms...
The virtual reality (VR) experience War Remains created by Dan Carlin claims that it is an immersive memory in attempt to give its audience the “tiniest taste of” what-it-was-like to experience a WWI battle (Carlin, 2020). This claim aligns with the growing belief that VR can be the ultimate empathy...
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...
Thomas Stearns Eliot’s 1922 modernist poem The Waste Land presents itself as an alternative to the decaying society Eliot found himself inhabiting. It begins as a personal means of pulling together one’s fragmented consciousness, but in doing so Eliot manages to present a solution to a world of selfishness—looking beyond...
The most important purposes of this study were to: (1) determine
the extent of cooperation and coordination that currently exists in
selected community colleges which have community school programs
in their college districts, and (2) clarify the multi-roles of community
schools and of community education in community colleges. Other
purposes...
Cytokinins can be conjugated to N- and O-glucosides. While N-glucosylation generally leads to irretrievable loss of activity, O-glucosides are thought to play an important role in cytokinin storage and homeostasis since they can be hydrolyzed to the corresponding aglycones. The first zeatin O-glycosyltransferase genes isolated were ZOG1 and ZOX1 from...
Disease predictive systems are intended to be management aids. With a few exceptions, these systems typically do not have direct sustained use by growers. Rather, their impact is mostly pedagogic and indirect, improving recommendations from farm advisers and shaping management concepts. The degree to which a system is consulted depends...
The process of leaving a work organization is difficult. Leaving an organization that you are part of as a volunteer is just as difficult. In fraternities, upperclassmen members tend to move out one year before they graduate. This is a problem that can create a leadership gap in the chapter...
My thesis, entitled “The Clerk’s Tale: Literal Monstrosities and Allegorical Problems,” argues that Chaucer’s Clerk is engaging both sides of a binary system. The Clerk has situated himself in a precarious position between two major schools of thought in the medieval culture, Franciscan and Dominican; the former promotes the will...