Tests using paired pens of barrows were conducted during a 13 month
period to determine the influence of protein level of the ration on
production traits of market barrows. One member of each pair of six to
ten full- and half-sib pairs was randomly allotted to each pen group;
thus,...
Daily and seasonal habitat use by Roosevelt elk was investigated
in the Oregon Coast Range on managed, public forestland. Over 3,700
locations of 6 radio-collared cow elk were recorded during 12 consecutive
months. Two elk formed part of a north band and 4 elk were
part of a south band....
This study provides an empirical test of the Bockstael-McConnell
(1980) household production function (HPF) framework for evaluating wildlife recreation. This is perhaps the first study in which
both taste and technology parameters have been estimated with a
theoretical model specification. The results suggest that for
steelhead sport fishing in Oregon,...
The central purpose of this study was to examine physicians' knowledge of and attitudes toward hearing aids. This study was conducted with 71 general practitioners affiliated with Scarborough General Hospital in Scarborough, Ontario, Canada.
Attitude was measured by a 5-point Likert-type scale developed for the study. Knowledge was measured through...
"The general objective of research . . . was to determine mechanisms that control the production dynamics of benthic plants and associated epiphytes in Netarts Bay relative to physical processes and changing patterns of nutrient distribution. . ."
The purpose of this experiment was to investigate the interactive effects of locus of control and instructional method on perceived self-efficacy with computers. The two instructional methods in this
experiment were intended to represent variations in the amount of control over the lesson that students
would have, the amount of...
During the W7711A cruise, from November 5 through November
13, 1977, a series of measurements were made on the hydrography, suspended particulate matter (spm), nutrients, first and second trophic level biomasses, primary productivity and zooplankton species for the purpose of gaining concurrent winter time information on these parameters. The cruise...
The main objective of this study was to estimate the demand for and net economic benefits from Oregon salmon sport fishing. The travel cost method was used as the primary technique for demand analysis. Several empirical estimates of consumer surplus per trip and per fish were obtained from different estimation...
The major focus of this research was to examine the factors, both
instructional factors and student factors, that influence student
gains in economic knowledge in economic education. This study sampled
twelfth grade students from randomly selected high schools in the
Williamette Valley of Oregon. The stepwise regression analysis was
used...
This study investigated the effect of cooking on the
neutral detergent fiber (NDF) content of cauliflower and
carrots. For each replication the vegetable was divided
in half to serve as its own control. One half was used
raw and the other half was cooked in 60 ml of distilled
water...
Mechanisms by which plant organs accumulate
photoassimilate are important in determining final sink size
and may involve invertase activity. Because strawberry
fruit are strong sinks for sugars, changes in invertase
levels during development and mechanisms of sugar uptake
within the fruit were examined.
Fruit from greenhouse-grown, day-neutral strawberries,
(Fragaria X...
This study was concerned with determining if: (1) the
effectiveness of residence hall student government varies according to
the perceptions of its role held by residence hall student staff and
government officers, and the hall type and population; (2) the
perception of hall student government held by student staff varies...
The growing demand for water in the arid regions of the West
increases the need for optimal allocation of water among competing
uses. An efficient allocation of water between instream and out-of-stream
uses has been impeded by institutional constraints and the
scarcity of information regarding instream flow benefits. The
objectives...
Spectral beam attenuation coefficients, spectral volume scattering
function meaurements at 45°, 90°, and 130° particle size distributions
and chlorophyll a and phaeophytin pigment concentrations were measured during
May and September, 1977 in Monterey Bay, California. This data is examined
and statistical interrelationships between the parameters measured are
explored.
It was...
National statistics indicate that as many as 23
million adults in the United States are illiterate and
another 40 million lack literacy skills necessary to
function effectively or on more than a narrow basis in this
society. People without literacy skills or who have only
marginal reading ability find themselves...
Published March 1981. 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
Published August 1986. 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 important element in rector safety and fuel performance assessments is the efficient calculation of the time dependent temperature profiles within reactor fuel pins. Because the fuel pins have temperature dependent thermal properties, the governing partial differential equations are nonlinear. Traditionally, finite difference or finite element methods have been used...
The primary purpose of this study was to investigate the relationships and the differences between the self-concept and the coping
behavior of two selected groups of graduate students namely, foreign-born
Asians and American Caucasians who were enrolled in graduate
school of Oregon State University during the 1981-82 academic year.
The...
Two new concepts have been explored in solving the neutron
diffusion equation in one and two dimensions. At the present time,
the diffusion equation is solved using source iterations. These
iterations are performed in a mathematical form which has a great
deal of physical significance. Specifically, the neutron production
term...
Research was conducted at the Starkey Experimental Forest and
Range in northeastern Oregon to determine cattle performance, diet
quality, botanical composition of forage ingested, and production
and utilization among rest-rotation, season-long, and deferred
rotation grazing systems. The grazing season lasted from June 20 to
October 10 of each year. Cows...
The primary purpose of this study was to determine the
effectiveness of the Oregon Level I Diversion Program in changing
knowledge and attitude concerning driving after drinking.
A secondary purpose was to determine the effect of the eight
different class-time schedules used to teach the required 12-hour
curriculum on the...
This study is directed toward an investigation of
the longer term aggregate consequences that arise from
producer behavior in a production environment
characterized by risk and uncertainty. In particular,
the papers included herein examine circumstances under
which individual actions may result in adverse long term
consequences in the aggregate market,...
Reactor refueling is a computationally intensive
problem solving process that requires automation since
significant resources are expended upon the search for
an optimal core loading. Without imposing some
constraints upon the configurations investigated, an
extremely large number of prototype loadings may be
generated without discovery of an improved loading. As...
Polychlorinated dibenzo-p-dioxins (PCDD's) and
dibenzofurans (PCDF's) are environmental pollutants associated with the production and use of a number of industrial
chemicals. In addition, PCDD's and PCDF's are produced
during low temperature combustion of wastes containing
polyvinylchloride (PVC), chlorophenols, and a number of
other chemical precursors.
A significant source of environmental...
Published July 1987. 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
Published March 1982. 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 sea offers a wide variety of potentially useful resources. Marine algae have been a rich source of structurally unique natural products showing diverse biological properties. The current need to develop new antifungal, antibiotic, anticancer and antiviral drugs has prompted intense research efforts into the discovery, isolation and structure determination...
Adult female Dusky Canada Geese were studied on the
Copper River Delta, Alaska and in the Willamette Valley,
Oregon during April through July, 1977 to 1979. Objectives
of the research were to: 1) determine the chronology of use
of protein and energy reserves in relation to four periods
of reproduction...
Revised edition of the author's "Vegetation of Oregon and Washington", originally published by the U.S. Forest Service in 1973. Reprinted with new bibliographic supplement by the OSU Press in 1988.
This study examined the role perceptions of trustees
in the locally controlled Oregon community college system
and the state controlled Washington community college
system. Authorities in the literature were consulted to
define the "ideal trustee role" and the study determined
which governance system was most effective in fostering
this "ideal...
Effects of diet on food energy utilization by grass
carp fed aquatic plants or formulated diets with varied
lipid sources and levels are presented in three
manuscripts. Significant effects of diet on food
consumption, digestion, growth and muscle fatty acid (FA)
composition of fingerling diploid grass carp fed aquatic
macrophytes...
Growing demand for limited quantities of fish has led to systematic
planning for the conservation and management of U.S. fishery resources.
There is a need for better understanding of the complex biological and
social environment on which regulation for conservation, social, and
economic purposes is imposed. The behavior of commercial...
In spite of imperfections, this monograph is useful in locating bird skins collected along the Oregon Coast that are stored in about 80 museums. This monograph lists over 11,000 records of skins for 279 bird species and 192 records of skeletons for 52 bird species. Each record includes the species,...
The purposes of the research presented in this thesis were
to: (l) assess the nutritional status of vegetarian and nonvegetarian
Seventh-day Adventists (SDA), non-SDA non-vegetarians,
and non-vegetarian hormone dependent cancer subjects; (2) determine
the relationship of various blood and urinary biochemical
parameters to dietary intake; (3) determine hormonal status in...
The purpose of the workshop was to exchange information on sampling procedures, research methodologies, preparation and
interpretation of specimen material, terminology, and the application
and significance of findings, emphasizing the relationship of dendrochronology procedures to fire history interpretations.