The use of bromoxynil (3,5-dibromo-4-hydroxybenzonitrile)
to control broadleaf weeds in cereal crops has become widespread.
This herbicide has not always performed satisfactorily for reasons
which were not clearly evident.
The effects of temperature, light and humidity on the herbicidal
activity of bromoxynil on coast fiddleneck, Amsinckia intermedia,
were studied. Fiddleneck...
This report deals with forestry in Korea in its various aspects and what has been done about forestry problems in Korea.
The ratio of forest land to total area of country is so high
that it is sometimes compared to Finland's, but the similarity with Finland stops there.
The adverse...
Seven one-square-mile areas were selected to test the notion
that there is a general intensification of agriculture as farm land
becomes more valuable. The Tualatin Valley adjacent to a large expanding
population center was selected because the land values in this
valley are increasing faster than are those of average...
Published June 1969. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
An attempt is made to determine whether
or not property value appreciation on land adjacent to an
expanding urban center is related to distance from the
city and to identify the temporal variation in this relationship.
The results of simple linear regression strongly
suggest that property value appreciation and distance...
The relationships between infant mortality
and four socio-economic factors were determined for
the United States using visual comparisons of isopleth
maps and linear regression analysis. The four socioeconomic factors were per capita income, the percent of the population that is Negro, the per cent of the population that has a...
The United States Air Force uses a test constructed by Air
Force personnel to test all individuals seeking entrance into Air
Force officer training programs. This test is titled "The Air Force
Officer Qualifying Test" (AFOQT). There are two major classes of
candidates who are required to take the test:...
Electrocardiograms from 12 compressed male (CM), 16 compressed
female (CF), ten synthetic compressed female (SCF), nine
brachycephalic female (BF), and 15 dolichocephalic female (DF)
dwarfs from Davis, California, taken in the scapular lead S-II (prescapular
position positive and right forelimb negative) were analyzed,
The data on dwarf electrocardiograms were compared...
This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Inclusion of substantial levels of raw-frozen Pacific hake
(Merluccius productus) in diets of ranch-raised mink (Mustela vison)
causes a large percentage of animals to develop an abnormal condition
termed "cotton fur" (CF), characterized by depressed body
weight, microcytic-hypochromic anemia and a failure of under-fur
pigmentation. Observations by several groups of...
This investigation was designed to determine the general achievement,
ability to solve applied problems, and attitude toward the role of
mathematics in science of college calculus students grouped in an
experimental class according to academic major during their first
three terms. The subgroups were biology-business, mathematics,
and science-engineering majors. The...
The inefficiency of time-shared computer systems compared to
batch processing systems is in the time lost in swapping operations.
The larger the allocated quantum size, the less swap time is incurred.
In order to guard against intolerable response time while lengthening
the quantum size, the response time of a common...
Published April 1970. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Experiments were conducted to determine survival, growth, and accumulation of HEOD (major component of dieldrin) in the tissues of steelhead trout (Salmo gairdneri) embryos, alevins, and fry exposed to dieldrin concentrations ranging from 0.012 to 52 ppb. The fish were held in specially designed exposure chambers provided with continuously renewed...
The electrochemistry of the lithium-potassium-sodium
carbonate-borate melt was explored by voltammetry and chrono-amperometry. In support of this, a controlled-potential polarograph
and associated hardware was constructed.
Several different types
of reference electrodes were tried before choosing a porcelain membrane electrode containing a silver wire immersed in a silver sulfate
melt.
The...
A complete taxonomic review of the Family Eviphididae was
made for the first time. The family was found to contain forty-nine
species and five genera. The genera included were: Eviphis
Berlese, Scarabaspis Womersley, Alliphis Halbert, Pelethiphis
Berlese, and Thinoseius Halbert.
The new species described were: Eviphis oregonensis from
Deschutes County,...
The study compares the differences in verbal responses between
39 Anglo-resident and 32 Anglo-migrant children in the first grade in
selected school districts in Oregon.
The children were tested for I. Q. using the Goodenough Draw-
A-Man test. They were grouped for comparison purposes by age,
sex, and by migrancy...
This study compared three approaches to the improvement of
vocabulary in ninth grade language arts classes: the direct-teaching
approach, the interest-in-words approach, and the wide-reading
approach. Answers to the following questions were sought: which of
these approaches to vocabulary improvement is more effective than
each other approach used in this...
Problem
While the primary emphasis of this study was on the professional
aspects of a business teacher's preparation, by necessity it was
concerned with other aspects of the preparation of business teachers,
especially as these relate to the so-called "professional sequence."
Thus the purpose of the study was to seek...
The purpose of this study was to statistically evaluate the
influence of student placement at reading level by means of an informal
reading inventory in one kind of elementary science materials. The
materials were written at five levels of reading difficulty to better
meet the reading ability spread found in...
Since the mid-1950's, when Western Kraft Corporation
began operation of a pulp and paper processing plant north of Albany,
Oregon, inhabitants of the Albany area have faced an air pollution
nuisance.
This study is an attempt to add empirical substance to the complaint
that air pollution reduces land values. The...
Few Americans are aware of the tremendous
recreation potentials along the banks of the Intracoastal
Waterway, mainly because they are unaware of
the existence and extent of the toll-free Waterway.
This study attempts to categorize and locate some of
the attractions that can be explored along the two
thousand miles...
The land tenure system in the United States contains a variety
of tenure types. A major characteristic of this tenure system is the
continual change of tenure types within a given region. As these tenure
types change, problems of a cultural, economic, and legal nature
are created and interact with...
The main focus was on developing an algorithm and supporting computer programs for use by extension personel to counsel farm managers on problems of enterprise choice. Investigation was initiated from the complete certainty viewpoint of linear programming. Upon introducing uncertainty, ramifications of changing expected income, variance and the correlation coefficient...
This paper reviews techniques that have been used to estimate bark growth, upper stem bark thickness, and bark volume. Two new equation forms have been developed and tested for estimating upper stem bark thickness using,as an example, data from Sitka spruce (Picea
Sitchensis (Bong.) Carr.) in southeast Alaska.
Many of the natural resource problems facing man in the present
era are so large and complicated that no one discipline provides an
adequate approach for their solutions. As an example, the relationships
of man to the land resource base can best be understood when
they are considered holistically rather...
The primary purpose of this study was to develop guidelines for
planning a preservice preparation program which would encompass the
critical issues in community college teacher education identified in
the related literature and by national and state authorities. The
secondary purpose was to suggest a plan for a community college...
In this thesis we investigate the extension of certain theorems
of additive number theory to three algebraic systems. A generalization
of a theorem by Cauchy and Davenport on the cardinality of the
sum of two sets of residue classes is given. We obtain and compare
estimates for the order of...
In recent years, studies indicate that the second formant
of normal speech contains the majority of the information necessary
for speech intelligibility. This thesis presents a system to
translate the second formant frequencies to within a more adequate
hearing range of the partially deaf.
The digital speech translator, DISTRAN, utilizes...
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,...
The extent of the competitive effect of wild oats on winter wheat
yield was estimated in field studies on three commercial wheat farms in
the Willamette Valley. The morphological development of the wild oat
plants was also documented.
Wild oats were removed from stands of wheat in six different treatments;...
The purpose of this study was to determine whether or not significant
differences exist between three student groups and one faculty
group at Oregon Technical Institute with reference to their perception
of the college environment. The gauge used to assess perception of
the college environment was the College and University...
The properties of evaporated aluminum-oxide films were investigated. The characteristics of MOS devices
made with single-layer aluminum-oxide films and double-layer
films which were made by evaporating aluminum oxide
over thermally-grown silicon dioxide as gate insulation
have been investigated. Vacuum-evaporated aluminum oxide
has features which are suitable for fabricating MOS devices....
The purposes of this study were to determine the effects of
temperature, nutrients, growth regulators, and culm detachment
during seed development on ryegrass seed dormancy and weight.
The effects of storage temperature on seed dormancy were also
studied.
Seed dormancy of annual (Lolium multiflorum Lam.) and
perennial (Lolium perenne L.)...
This monograph is focused around the controversy in the economic literature regarding the effects of income changes on labor force participation. In particular, this controversy arises from the opposing hypotheses: the "additional worker" and the "discouraged worker." Each hypothesis predicts different behavior in response to falling income or rising unemployment....
The pages of this Continuing Education Book contain the papers presented on the Oregon State University campus, March 22-24, 1971 at which time several hundred individuals gathered to learn the requirements for the Oregon Public Employee "Special Applicator" license test. The purpose of this Short Course on Pesticides, Pest Control...
This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Heat transfer from a vertical flat plate in an infinite pool of
mercury was investigated. Velocity profiles were measured with a
hot-film anemometer and simultaneous temperature profiles measured
with thermocouples in this low Prandtl number liquid metal. Constant
heat flux plates at Grashof numbers of 9 x 10⁸ and 4...
One of many important physical properties that must be known
to understand transport phenomena in soils is pore size distribution.
Presently the pore size distributions of soils are most commonly
obtained from soil water characteristic curves. The soil water characteristic
curves are usually obtained by the pressure plate technique.
It...
The two major purposes of this study were: (1) to test the
assumption that the IT Scale for Children (standard-ITSC) can be used
as a measure of both appropriate sex role discrimination and sex role
preference with preschool aged children, and (2) to extend previous
studies in these areas by...
A need has existed for an in-depth structural analysis of penstock
bifurcations because they form an integral part of hydroelectric
power plants. Their geometrical complexity has prevented classical
structural analysis from providing an accurate and overall picture of
the stresses in the structure.
Digital computers and the development of finite...
Cell division in a heat synchronized Tetrahymena pyriformis
(GL-I) cell can be delayed if the cell is exposed to X-irradiation (300
kVp, 20 mA, HVL = 0. 9 mm Cu, 25 R/ sec) prior to a critical time
after the end of the synchronizing treatment (EST). At the critical
time,...
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Until recently, manufacturing in
the Portland Metropolitan Area was highly
concentrated in the central city, with little
industrial activity in the periphery of the
urban area except for primary processing of
timber and agricultural resources. However,
in recent years, especially within the last
decade, industrial activity has spilled well
beyond...
This study traces the historical foundations of the concept of
constant ionic proportionality and the equation (Salinity [S%₀] = 1.805
Chlorinity [Cl%₀] + 0.030) which has been in general use in oceanography
since 1902 until 1969 and which is based upon this constancy,
The notion that the constituents present in...
An experimental study was conducted with beginning typewriting
students to investigate the effects of two variables in proofreading
straight copy paragraph materials in the independent method of
proofreading. One was the influence of repetition which was examined
through the use of three different methods of reading. The second
was the...
The purpose of this study was to measure the relative prominence
of the values -- theoretical, economic, political, aesthetic, social, and
religious--among the four groups of institutional educators under the
direction of the State of Oregon Corrections Division in the two adult
and two juvenile facilities; namely, the Oregon State...
This thesis involves the interpretation of gravity and other
potential field anomalies caused by layers of varying thickness. The
partial differential equations of potential field theory are reviewed for
gravitational and magnetic force fields. A similar review is carried
out for steady-state heat transport and diffusion processes. For the
gravitational...
The southern half of the upper Nehalem River basin contains
the most complete section of lower to middle Tertiary marine sedimentary
and volcanic rocks in northern Oregon. Determination of
stratigraphic relationships of six formations, and their depositional
environments and provenance is the chief objective of this paper.
More than 75...
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The purpose of this study was to compare the effectiveness of a
learner-centered teaching system and that of a conventional teaching of
basic electricity to university students. For this study 65 students
enrolled in basic electricity at Arizona State University in Tempe,
Arizona were used, distributed in two fall semester...
The purpose of the study was to analyze selected characteristics
of a sample of chief administrators in community or junior colleges in
the nation to determine their attitudes toward secondary vocational
education. Samples of chief administrators in public post-secondary
institutions which offered shared-time vocational education programs
for secondary (high school)...
The organization of behavioral activities in time is important
to a bird's survival and reproduction. To be successful, either
proximately or ultimately, a bird must apportion its behavior in time
so that it may obtain sufficient energy for maintenance activities and
for such activities as migration and reproduction. The organization...
A gene-ecological transplant study was made on populations of
the Crepis nana and C. elegans complex from the Arctic and Alpine of
North America. Transplants were collected from the Brooks Range,
Eagle Summit, and Alaska Range in Alaska, the Rocky Mountains in
Alberta, the Olympic Mountains in Washington, the Wallowa...
The photolysis of the aqueous thymine system has been investigated
at 214 nm, 229 nm and 254 nm at room temperature. Products
of photolysis have been identified as hydrogen peroxide, 6-hydroxy-5-
hydroperoxy thymine and tentatively 5-hydroxy-6-hydroperoxy thymine.
These together with thymine loss, were determined quantitatively
under a variety of conditions....
Precocious male coho are of limited economic value and control of their numbers returning to the hatchery or the increased survival of full-sized adults would be beneficial. Factors influencing
early sexual maturation and attempts to suppress this maturation of males through the incorporation of a hormone in the diet, treatment...
The purpose of this study was to analyze and describe
the opinions and characteristics of black students enrolled
in Portland Community College.
Data were obtained through a random sampling of two
groups of subjects who were invited to participate in the
study as follows: (1) Black subjects were 109 students...
The purpose of this study was to test two assumptions. They
are that factors in a child's background correlate with the notion of
conservation and that additional mathematical instruction will result
in a higher level of maturity of the notion of conservation as well as
increased achievement in mathematical skills....
The purpose of the study was to prepare and statistically
evaluate a series of 11 history of science case studies designed to
teach the following abilities involved in scientific thinking:
1. Recognizing problems, hypotheses, experimental conditions,
and conclusions.
2. Understanding the relationship of evidence to hypotheses.
3. Understanding experimental conditions...
Forest technician education at the community college is
an important segment of the forestry profession (United States
Department of Health, Education, and Welfare, 1968).
Objective
The objective of this survey is to investigate the forest
technology curricula at Oregon's community colleges. The question
of what subjects should be incorporated into...
The objective of this study is to determine the past, present, and future demand for forest technician graduates in the forestry profession. Literature reviews, questionnaires, and personal interviews with forest technician instructors were utilized to accomplish the objective.
Lane County, Oregon recognized a needs for the protection of gravel producing land in the county a few years ago. This need for protection was first observed by a few sand and gravel owners and then by the Lane County Board of Commissioners. These two interests met and discussed various...
Coal was discovered in southwestern Washington over
One hundred years ago but until recently was of only minor
local importance. From the peak production year, in which
less than one-third of a million tons of coal were mined,
until the late 1960's, the coal production of the area degenerated
to...
A mathematical model was developed to predict the absorption
rate of a slightly soluble gas entrained by a plunging liquid jet. The
single parameter of the model, the transfer factor, TF, was defined
as the summation of the product of the mass transfer coefficient and
interfacial area over all the...
The generalized Hankel transforms are studied in the
first part of this thesis; these include the Watson transforms
as a special case. For the validity of the reciprocal
relations, a necessary and sufficient condition on
the kernel is proved. The proof involves first changing
the variables so that all the...
Oogenesis in the sea urchin Strongylocentrotus purpuratus was
studied at the fine structural level, with special emphasis on the relationship
between the two main cell types within the ovary: the egg cells
and the nutritive phagocytes, or accessory cells. The nutritive
phagocytes are flagellated cells with extensive pseudopods which store...
The seasonal concentration, turnover and mode of accumulation
of ³²P by the juvenile starry flounder in Alder Slough, a small eco-system in the Columbia River Estuary, was examined during 1969 and
1970.
Levels of ³²P and concentrations of total P were measured to
permit computation of specific activities (nCi³²P/g total...
After parenteral immunization with Aeromonas salmonicida
cells, the agglutination activity in juvenile coho salmon (Oncorhynchus
kisutch) serum was associated with the macroglobulin serum fraction.
Antibody activity was diminished by 30 minutes exposure to 50 C
but not 45 C. Reduction with 2-mercaptoethanol and alkylation
markedly lowered but did not completely...
Nine Gray Podzolic soils from different physiographic regions
of Thailand were studied to determine their characteristics and
genesis in relation to their parent materials, land form, pedogenic
environment, classification and management. The clay was characterized
by X-ray diffraction and standard chemical and physical
analyses were performed. Mineralogy of the light...
The purpose of this investigation was to determine if the level
of aspiration procedure consisting of knowledge of results plus goal-setting
possesses a motivational property as reflected in performance
on subject matter criterion instruments above that of knowledge of
results alone in an undergraduate biology course. In addition the
study...
This research was initiated to investigate the effects of various
parameters on the immune response of juvenile coho salmon to Aeromonas
salmonicida. The antibody response and development of protective
immunity in juvenile coho salmon were followed after a single
intraperitoneal injection of formalin killed A. salmonicida cells emulsified
in Freund's...
The purpose of the study was to compare the visual-motor performance
of college students who reported ingestion of certain drugs with
those college students who reported no drug ingestion. The study
drugs included the following drugs or groups of drugs: tobacco,
alcohol, marijuana, LSD, mescaline, barbiturates, and amphetamines.
A total...
Acquisition of divergent-productive thinking skills by using
elementary science materials constitutes the basic idea of this experiment.
The data collected was used to determine statistically if
the materials had a significant role in inducing such skills.
The Ss were fifth-grade students obtained from two public elementary
schools in Oregon. Those...
AT-cut piezoelectric quartz crystals coated with low vapor
pressure materials are evaluated as digital transducers in completely
digital detection systems for monitoring gas streams. Mathematical
relations describing the detectors are developed and tested. Specific
application is made to monitoring gaseous sulfur compounds commonly
found in stack effluents of pulp mills....
This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
A taxonomic study of the genus Trichopezizella Raitviir is
presented. T. nidulus var. nidulus, T. horridula, T. barbata, and
T. relicina var. relicina are fully described and figured. Three
provisional combinations are made: T. nidulus var. hystriculus, T.
nidulus var. setigera, and T. relicina var. macrospora. T. onocleae
and T....
The need for classifying vegetation in a more precise way is
evident. Also, there is a need to provide a hierarchical classification
scheme that will match changes in image characteristics as one
moves through the scales from space to conventional aerial photography.
Such refined classifications of vegetation are the first...
Despite the obvious importance of the Oregon big game resource
to Oregon citizens, economic data regarding the actual
magnitude of net and gross values have been lacking. Thus an
attempt has been made in this thesis to supply the missing information
by estimating the gross economic value and by formulating...
Vacuum ultraviolet absorption spectra of 13 model sugar compounds
were measured in the energy range of 50 to 80 kK. The model
sugars included three simple alcohols, four simple ethers, four cyclic
alcohol-ether compounds, and two dioxanes. All spectra show
transition bands in the energy region 50 to 65 kK....
Laboratory experiments were conducted to study those factors which control the rate at which salts, such as magnesium chloride and sodium chloride, are removed from titanium sponge. The sponge was prepared by reducing titanium tetrachloride with either magnesium or sodium, and the resulting sponge salt mixtures were treated by vacuum...
The purpose of the study was to develop guidelines for the
establishing and teaching of a home economics program within a
standard, non-laboratory classroom.
An opinionaire was developed and sent to 34 administrators of
small high schools and junior high schools in Oregon believed to have
no home economics programs...
Problem School districts need information on how to better
communicate with voters because budgets are being defeated. Budgets
are growing larger as schools require an increasing level of
financial support to respond to societal changes.
This research focused primarily on the published school budget
because in the state of Oregon...
The power dissipation of microstrip transmission-line on
gold-doped silicon substrates was investigated. The gold-doping was
applied to a regular n-type silicon substrate with resistivity of 5 to
10 ohm-cm. Insertion-loss tests were employed to measure the
power dissipation of the microstrips. Power dissipation somewhat
less than that for intrinsic silicon...
This study was undertaken to increase knowledge of opal phytoliths
in plants and soils of Oregon, and thus encourage further use of
phytoliths in future pedologic investigations.
Content of plant opal in needles from ten common Oregon conifer
species ranged from 0.2 to 7.9%. Western larch (Larix occidentalis)
contained the...
The late Oligocene Yaquina Formation is exposed in an arcuate outcrop pattern which extends along the central Oregon Coast from
Siletz Bay on the north to Seal Rock on the south. Maximum inland extent of the Yaquina outcrop is :five miles. Maximum thickness of the Yaquina Formation is 2, 000...
The Purposes of the Study
The primary purpose of this study was to identify common professional
education competencies needed by public school district
vocational education leaders. Other purposes were to (1) determine
if significant differences existed in vocational education leadership
competencies among respondents as categorized by state, type of
position...