This study consisted of determining some of the conditions for
culture of young English sole (Parophrys vetulus Girard) in the laboratory.
Rearing of the larvae to the juvenile stage was attempted
unsuccessfully; techniques used and problems encountered during culture
are discussed. Growth of juveniles was studied at combinations of
temperatures...
The competition or rivalry for the use of water resources
among economic sectors of the Pacific Northwest and among geographical
regions of the western United States has intensified in recent
years. This rivalry and the long run prospects for water shortages
have increased the demand for research concerning the productivity...
A series of log storage experiments were conducted to determine
whether leachates derived from water storage of logs are acutely
toxic to fish. Log segments approximately 18 inches long and 16 inches
in diameter were stored in tanks and held submerged for a period of
7 days. The holding water...
A study was conducted over a two year period, 1973 through
1974, on perennial ryegrass-subclover pastures with stocking rates
of 7.4 (moderate), 9. 9 (heavy), and 12.4 (overstocked) ewes per
hectare to establish guidelines on stocking intensity for dryland
improved pastures in western Oregon. Climatic conditions varied
annually and caused...
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...
By using continued fractions the set of positive
irrationals can be put in one to one correspondence
with the set of sequences of positive integers. The
entries of an arbitrary sequence of integers can be any
subset of Z and each integer appearing can occur once,
infinitly often, or anything...
This monograph presents a proof grammar for a formal language containing property symbols of every finite type. The proof grammar is thus applicable to any finite level higher-order logic.
The unique features of this system are: first, its mode of presentation as a recursive discourse grammar rigorously constructed from the...
Yield reductions due to competition of weeds with crop plants
can be extremely important. Early weed competition can be as important
in reducing crop yield as weed competition for the entire
season.
The objectives of this study were (1) to determine the weed
control achieved by narrow row-cropping patterns, (2)...
A survey of partial cuts planted with bare-root seedlings, was conducted on the Prospect Ranger District, Rogue River National Forest, Oregon, during the 1977 summer season. The purpose was to assess stocking and its composition under present levels of canopy cover, and to determine relationships between canopy density and performance...
Computer oriented techniques and procedures are presented for the analysis of single and multiple cable systems. Application is made to a two-point mooring system influenced by surface and subsurface hydrodynamic loading. The effects of the various parameters are presented and the numerical method is compared to exact solutions obtained from...
The resistance of a leaf to molecular gaseous diffusion
is an important physiological response. Control of
leaf resistance enables a plant to control its transpired
water loss and regulates photosynthesis.
Four study sites representing a gradient in available
moisture and evaporative demand, were chosen in western
Oregon for the study...
An ecological study of small forest mammals was conducted
from 1964 to 1970. The objectives were to obtain chronological information
relative to the effects of current logging practices on vegetational
succession and small mammal populations.
The locale of the study was in the west-central Cascade Mountains
of Oregon. The principal...
Effects of the marine environment on age and size at maturity, early marine growth, and abundance of chum salmon, Oncorhynchus keta, were studied at Olsen Creek during 1959-77. Chum salmon returned to Olsen Creek as predominately 3-, 4-, and 5-year fish; however, age composition varied from year to year. The...
Several studies were conducted to determine the feasibility of
using terbacil (3-tert-butyl-5-chloro-6-methyluracil) postemergence
to weeds and peppermint (Mentha piperita L.). Three nonionic surfactants,
four nonphytotoxic oils, and a liquid fertilizer were each
combined with 0.5 lb ai/A terbacil in 35 gallons of water per acre.
Weed species tested include: redroot...
G. Spencer Brown's book Laws of Form has been enjoying a vogue among social and biological scientists. Proponents claim that the book introduces a new logic ideally suited to their fields of study, and that the new logic solves the problems of self-reference. These claims are false. We show that...
To determine whether a homologous neurohormone, arginine
vasotocin (AVT), can elevate the occurrence of clasping behavior in
male rough-skinned newts (Taricha granulosa), intact, sexually inactive
males were injected with either AVT or saline. The incidence
of courtship was elevated in the group of males injected with AVT,
but not in...
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...
Studies were initiated to determine the response of two common
groundsel biotypes (Senecio vulgaris L. ) to several s-triazine herbicides.
Herbicides tested were: 2-chloro-4,6-bis(ethylamino)-striazine
(simazine), 2-chloro-4-(ethylamino)-6-(isopropylamino)-
s-triazine (atrazine) 2-(sec-butylamino)-4-(ethylamino)-6-methoxys-
triazine (GS-14254), 2, 4-bis(isopropylamino)-6-methoxy-striazine
(prometone), 2-(tert-butylamino)-4-(ethylamino)-6-methylthio-
s-triazine (terbutryn), and 2, 4-bis(isopropylamino)-6-
methylthio-s-triazine (prometryne). One biotype was much more
susceptible than the...
Esophageal fistulation, stomach content analysis, fecal analysis,
and ocular-estimate-by-plot are four of the most publicized methods
of determining the diets of large herbivores. The principal objective
of this study was to compare the relative values of each of these
methods based upon information collected from bi-fistulated (esophageal
and rumen) sheep...
Purpose
This study compared existing Oregon elementary school physical
education facilities and equipment with those facilities and equipment
items perceived to be essential for a quality physical education program
by nationally selected physical education specialists.
Procedures
A survey form was mailed to 110 national educators proposed by
state directors of...
The purpose of this research, expressed in two coequal parts,
was: to establish a forecast of developments and an articulation of
policy options vis-a-vis postsecondary student consumerism; and to
determine if interest groups of experts differed significantly in
their evaluations of the aforementioned developments and policy
options.
The Delphi technique...
Concern over the need to provide open space in communities
for recreation and other uses and to estimate the public values
involved is apparent to regional planners. This need, particularly
evident in natural resource planning, indicates that more sophisticated
analytical techniques be developed.
The primary thrust of this study is...
Illegal Mexican migration to the U.S. appears to have increased substantially
over the past fifteen years. Most illegal Mexican aliens migrate
with the aim of obtaining better employment opportunities and higher
earnings in the U.S. than are available in Mexico. The potential impacts
of this migration on various U.S. interests,...
The competition or rivalry for the use of water resources
among economic sectors of the Pacific Northwest and among geographical
regions of the western United States has intensified in recent
years. This rivalry and the long run prospects for water shortages
have increased the demand for research concerning the productivity...
The specific activity of ⁶⁵Zn (nanocuries ⁶⁵Zn/g total Zn)
was determined in various organs of the common coastal mussel,
Mytilus californianus Conrad, collected from six locations along
the Pacific Coast. These organs included the gills, mantle, foot,
reproductive organs, adductor muscle, and viscera. After ashing
and dissolving with nitric acid...
A number of studies with ¹⁴C-labeled 2-chloro-2', 6'-diethyl-
N-(methoxymethyl) acetanilide
(alachlor) were conducted to obtain
information about the mechanisms
of uptake of this herbicide.
In other studies, technical
alachlor as well as the emulsifiable
concentrate formulation of the
chemical were used to investigate the
effect of several factors on the...
Published January 1973. 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 primary focus of this investigation was to assess whether
or not selected ecological indices and leisure preferences demonstrated
statistically significant relationships with the aged's self-concept.
Gerontology, a relatively embryonic discipline, has only
recently begun to examine the impact of demographic, physical and
socio-psychological stresses upon the geron's self-concept. Even...
This thesis examines three newspapers in Corvallis and Salem,
Oregon: the Corvallis Gazette-Times, the Oregonstatesman (Salem)
and the Community Press (Salem). It examines the histories of the
Gazette-Times and the Oregon Statesman as family-owned papers, and their current status as properties of newspaper chains. Based
on interviews of key staff...
Vaccination with Vibrio anguillarum by oral administration
during copper exposure and intraperitoneal injection prior to copper
exposure was employed to investigate the effects of copper upon survival
and the immune response of juvenile coho salmon (Oncorhynchus
kisutch). Following copper exposure the survivors were challenged
under natural conditions to V. anguillarum,...
The purpose of this research was to examine factors associated
with the social climate of single-sex and coeducational residence
halls, fraternities, sororities, and cooperatives on the Oregon State
University campus.
The primary sources of data for this study were student
responses to the ten subscales of the URES Form R,...
A series of in vitro laboratory trials and in vivo
sheep digestion trials were used to evaluate aerobically
or anaerobically fermented perennial ryegrass straw.
The laboratory trials consisted of a silage study, where
mini-silos were used in a 9 X 2 factorial design with
nine levels of whey (0 to...
This thesis describes a Mossbauer effect and electron
paramagnetic resonance study of iron (III) tetraphenylporphyrinatobenzenethiolate
benzene thiol, an analog compound
for bacterial cytochrome P-450. The compound is unusual in
that it provides a model for the two ferric reaction states
of cytochrome P-450. The iron in the model compound exhibits...
This study sampled the work activities of community pharmacists in eighteen western Oregon pharmacies (9 chain and 9 independent, stratified by daily prescription volume). Utilizing a technique of recording at least 960 observations in each pharmacy, a total of 41,542 observations were recorded into 28 mutually exclusive task activity categories....
The Dungeness crab fishery is the largest and oldest known
shellfish fishery of the North Pacific coast of North America. The
stability and development of this fishery is seriously hampered by
increasing meat extraction costs and labor shortages.
Alternative solutions to offset the increasing costs and labor
shortages include: 1)...
The purpose of this study was to explore under controlled conditions
possible differences between teacher expectancy and child performance
at the first grade level. The Beaverton Public Schools participated
in the study with their first grade children and teachers, using an
examination administered to a random sampling of children and...
Oakland is a quiet, peaceful little town on the Calapooya Creek surrounded by rolling hills and little valleys. This little booklet is written with the intention of preserving the history of our pioneers and contains a number of the names of the people who took doriation Land Claims and is...
The current trend toward the establishment and care of forests for a
wide combination of uses requires flexibility in forest culture and a
knowledge of the silvicultural choices available to the resource manager. This
publication summarizes for each of 37 major forest types in the United States
the silvicultural systems...
This publication is a comprehensive account of major Federal
programs and policies relating to conservation and
development of water and related land resources and to water
pollution control in the years 1961 to 1970. It discusses most
relevant Federal legislation and the functioning of Federal and
federally-assisted programs involving research,...
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...
Reliable data for tropical storm occurrences in the northern
portion of the eastern Tropical Pacific did not become available until
1966. Considering the years 1966-75, sizeable interannual variations
in storm frequency are evident. Six climatological factors are
investigated in an attempt to explain this interannual variation. These
are: (1) the...
Purpose
The study was designed to test the effectiveness of a counselor
training experience which used pre-recorded client statements as the
instructional medium. The principal objective of instruction was to
teach counselor trainees to differentiate between the affective and
cognitive content of client statements and to respond in ways which...
The objectives of this study were to evaluate environmental
factors influencing use of several plant communities by cattle, elk
and deer; determine under story production by plant species and the
amount utilized by cattle, elk and deer in certain plant communities;
evaluate the interactions of range use between cattle, elk...
The location of a lactating mouse in a cage of two compartments,
a nest area and a larger wire cage, was continuously recorded for ten
days after parturition. Three experimental groups within each of two
inbred lines, A/J and C57BL/6J, were tested: first generation,
unfostered; second generation, unfostered; and second...
A study was conducted during 1974 and 1975 to evaluate the impact
of stocking intensity and season of grazing upon carbohydrate
concentration, biomass of storage organs, and total carbohydrate per
plant in the roots and crowns of perennial ryegrass (Lolium perenne L.)
in improved rangelands in Western Oregon. The stocking...
The purpose of this study was to determine plant species composition, community structure, successional relationships, vegetational development and plant distributions in estuarine salt marshes on the Pacific Coast of Oregon.
Quadrat and transect samples of plant presence and cover, collected from April 1971 - June 1974, were subjected to phytosociological...
Reed canarygrass (Phalaris arundinacea L.) is a desirable pasture
grass on wet areas in the Northern United States and Southern Canada,
but it is a serious and troublesome ditchbank weed in the Pacific Northwest
and Rocky Mountain States. The purpose of this study was to learn
more about the development,...
The energy absorbed by microscopic volumes exposed to ionizing
radiation is not well represented by the average dose due to the small
number of discrete energy transfers involved. The energy deposited in
a microscopic volume can be determined by measuring the ionization in
a detector filled with gas at low...
A simulation model capable of execution on a programmable
calculator was developed to study voluntary intake,
liveweight change, and fertility of grade Zebu cows in the
Llanos of Colombia. Organic nitrogen in the diet and meta
bolic weight were used to predict intake; age, liveweight,
and energy concentration were the...
The focus of this study was to identify persistent
problems in the developmental history of the American
Department of Defense dependents schools in Okinawa, Japan.
The period of time covered was from 1946 through 1978.
The study includes historical descriptions of curriculum
development, obtaining and maintaining school facilities,
and the...
Purpose: This investigation was conducted to determine
whether or not teachers and students perceive the environmental press
of a secondary school differently, and whether or not teacher groups
and student groups vary in their perceptions.
Conceptual Framework: "Press" i s a construct which expresses
the assumption of elements in the...