Respiratory rates were measured, in situ, for the litter, the
soil, and the litter-soil subsystems of a Pseudotsuga menziesii forest
as a function of type of understory vegetation. The major objectives
were to demonstrate the utility of the litter layer as a distinct subsystem
of this forest ecosystem, to demonstrate...
The objective of this paper is to conduct a geographical inventory
of a sand and gravel site, Lower Kiger Island, so as to identify and
evaluate other potential land uses subsequent to the extraction of its aggregate
resources. This information is intended to aid citizens, land use
planners, and sand...
The purpose of this study was to present the new women's
studies program for the community college. The study advocated
consciousness raising for females at all levels of public instruction,
but this paper was limited to the community college. The program
outlined would seek to help women to assume a...
In April of 1974, Oregon State University conducted a geophysical
survey of the Orozco fracture zone, a Left-lateral transform fault
which offsets the East Pacific Rise off the coast of Mexico near
15°N, 105°W. Magnetic, gravity, bathymetric, and seismic reflection
data were collected during a four day period. This survey...
An additional layer, exterior to the outer membrane cellwall
layer, was found on Aeromonas salmonicida cells from aggregating
strains. Nonaggregating strains were found to lack this layer.
The nonaggregating strains were all avirulent (LD₅₀
greater than
1 X 10
⁸ CFU/fish) while the majority of the aggregating strains
were virulent...
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...
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 this study was to find what effect temperature
and immunization has on the phagocytic activity of fish leukocytes
against certain disease causing bacteria. Also proposed was the
isolation and characterization of a leukocytolytic factor produced by
one of these bacteria, Aeromonas salmonicida.
Investigations revealed that temperature had...
The Boivin agent from Vibrio anguillarum was extracted with the use of 0.25M trichloroacetic acid (TCA). Chemical analysis revealed that the endotoxin contained approximately 35.1% protein, 18.1% carbohydrate, 39.3% lipid, 1.8% glucosamine and evidence of ethanolamine. Sixteen different amino acids made up the protein. The aliphatic amino acid concentration was...
The detection and antigenic nature of the causative Corynebacterium
of bacterial kidney disease and chemotherapy of this disease
in juvenile coho salmon (Oncorhynchus kisutch) were examined.
Each of 207 yearling coho salmon collected from a population
undergoing a severe epizootic of bacterial kidney disease were examined
for the presence of...
Efficacious vaccines were developed for the control of Vibrio
anguillarum, the etiological agent of vibriosis in salmonid fish.
These bacterins can be administered either orally or parenterally.
It was determined that both formalin-killed lyophilized whole cells
and wet-packed whole cells of the organism are effective oral immunogens.
Intraperitoneal injection of...
Phenol-water and trichloroacetic acid extracts of Vibrio
anguillarum were both antigenic and immunogenic when injected
into coho salmon (Oncorhynchus kisutch). Cross-protection against
virulent Vibrio anguillarum was observed with whole-cell bacterins
and phenol-water extracts prepared from two serologically distinct
groups. Gel diffusion studies indicated that intact somatic antigens
were serotype specific....
The genus Bdellovibrio is characterized by the unique ability to
parasitize and enter gram-negative host bacteria. This interaction
leads to the consumption and death of the host cell as the Bdellovibrio
grows and divides into progeny. Little is known about the metabolism
of host cell components by Bdellovibrio. The possibility...
Purpose of the Study
The purposes of this study were to (1) identify the educational
and socioeconomic characteristics of Latin American students who
have graduated from the California State College system, (2) to identify
those characteristics which significantly affect academic success,
utilization of training and return home to Latin America...
A comparison of the agglutinating and precipatiating
antigens of Enteric Redmouth Bacterium (ERMB) was made.
There are two major and one minor agglutinating antigens
which describe two serotypes (I and II). Only serotype I
metabolizes sorbitol. A bacterin from serotype I cross
protected against a challenge of bacteria of serotype...
Fish, asymptomatically infected with Enteric Redmouth
Bacterium (ERMB), were tested for their ability to transmit
bacteria to non-infected fish. Unstressed carrier fish
were unable to transmit enough bacteria to cause
epizootics or produce carrier fish. However, when the
ERMB carriers were stressed with heat, sufficient bacteria
were shed to infect...
When considering acreage and the number of cadasters
certain land use functions in the Merlin Irrigation District dominate.
The majority of the cadasters in the district are ten acres or less.
Approximately twice an many land owners in the district were willing
to purchase water than those who were not....
Purposes of the Study The study had several purposes, the major one being to
determine the common professional education competencies needed by
community college instructors of trade and industrial education. Two
other purposes of the study were to determine if differences existed
among community colleges according to scores trade and...
Aflatoxins B₁, Q₁ and aflatoxicol, R [subscript o] F, but not B₂ were activated in the presence of NADPH by the 105,000 x g pellet from rainbow
trout (Salmo gairdneri), Mt. Shasta strain, liver to products lethal to
Bacillus subtilis GSY 1057 (metB4, hisAl, uvr-1). Electron microscopy
confirmed the microsomal...
Bayocean sand spit lies along the northern Oregon coast
approximately 70 miles south of the Columbia River. Work was
begun on the construction of a large recreational resort on the spit
in the early 1900's. At the outset, the resort appeared to have a
promising future. However, a three-year delay...
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...
Although the rate of social and technological change seems to be
growing ever faster, and such changes are reflected in new directions
for vocational education, the process of developing vocational programs
in keeping with probable future contingencies remains
unformalized. The purpose of this study was to examine the practicality
of...
The primary purpose of this study was the identification of
specific medicine education learning outcomes which are important
and appropriate for ambulatory, non-institutionalized older adults.
A modification of the Delphi technique was utilized and a panel
of 16 national experts was selected on the basis of four criteria to
respond...
The second volume of a five-volume series is presented. The contents are arranged under the following chapter headings: (1) Fluid Mechanics of Liquid Metals, (2) Liquid-Metal Heat Transfer, (3) Intermediate Heat Exchangers, and (4) Steam Generators.
Easter Island and Sala y Gomez are part of the Sala y Gomez
Ridge, a broad band of high topography and scattered seamounts
extending ESE from the East Pacific Rise. It has been proposed that
the Sala y Gomez Ridge results from the movement of the Nazca Plate
over a...
The sinuous flight behavior of male Douglas-fir tussock
moths, Orgyia pseudotsugata, (McD.), is characterized by
positive anemotaxis and positive chemoklinotaxis and varies
depending on distance from the pheromone source, population
density, and time of day. Visual cues play a minor role
in close-range orientation to a pheromone source, but
males...
The analysis of 64 rock samples from Saudi Arabia and three
samples from the axial trough of the Red Sea has been done.
Instrumental neutron activation analysis (INAA) was the analytical
tool used for the analysis of at least 18 and as many as 24 elements
in these 67 rock...
Detailed surveys of several segments of the Peru Trench show
that the region between 6° to 10⁰ S is an area of recent deformation.
Seismic reflection records across the axis of the trench show faulting,
uplift, and tilting of the sedimentary fill and the acoustic basement.
Uplift of the acoustic...
The life history and wing pattern variation of the intertidal
shore bug, Saldula palustris (Douglas), were studied in field and
experimental populations from June 1970 until February 1972.
The study site was an estuarine salt marsh on Yaquina Bay
near Toledo, Oregon. The insects live below mean high water level...
Extensive new trackline coverage of the Chile Trench between 23°S and 34°S, including more than 60 bathymetric and seismic reflection profiles across the trench axis, allows a much more detailed study of the tectonics and sedimentation of this feature than previously possible. Sediment distribution along the axis shows a remarkable...
Magnetic, gravity and bathymetry data were collected on an extended
cruise of the R/V Yaquina in 1969. The last set of data was obtained
from those track lines leaving the Panama Basin. The area
covered is mainly the Cocos plate (Molnar and Sykes, 1969). The data
is analyzed and compared...
This analysis of Colombia's System of National Park Reservations
accomplishes four objectives: 1) The historical development of national
parks in Colombia was described; 2) The status, as of August,
1974, of the areas administered by the Colombian Renewable Natural
Resources Development Institute (INDERENA) was summarized; 3) An
analysis of major...
The feasibility of utilizing LANDSAT MSS data in assessing surface cover types and areal extent of clearcut and shelterwood cut harvest sites in southern Oregon was investigated. The research utilized extensive 'ground truth' information to evaluate the LANDSAT data. A three faceted ground truth collection scheme analyzed 1) U.S. Forest...
In February of 1975, the School of Forestry sponsored a series of lectures and discussions on the topic, "Forests of the World-Future Resources Conflicts." The objectives of these presentations were to examine prospects for future forest use, the demands that will be made on forest resources of all sorts, the...
These proceedings arc based upon a Conference conducted at Oregon State University on May 13 and 14, I 970.
The conference was sponsored jointly by the Schools of Forestry and Business and Technology. Co-chairmen of the Conference were Professor Ray A. Yoder of the School of Forestry and Professor Lester...
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...
To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
The Oregon sockeye salmon virus (OSV) was isolated from
diseased sockeye salmon (Oncorhynchus nerka) fingerlings in 1958
by J. L. Fryer. Experimentation performed prior to the research
reported herein indicated that the OSV contained essential lipids, was
100 to 300 mμ in size, and possessed RNA (presumptively identified
by 5-bromodeoxyuridine...