Contemporary database systems are used in a variety of business applications requiring rapid retrieval of online data. When records contain unique information indexed by a single key, the retrieval operation can be simplified. However, when added generality and flexibility is needed, inverted files and sophisticated data models result in a...
Species interactions and their effect on the use of habitat by benthic fishes were examined in a guild composed of Cottus perplexus, C. rhotheus, and C. beldingi in the Marys River above Philomath, Oregon, and in a constant environment provided by an artificial stream. In the Marys River system, the...
The Carnegie Ridge is a linear, aseismic, submarine ridge
lying between the Galapagos Islands and the coast of South America.
A 2300 meter deep saddle near 86°W. longitude divides the ridge into
western and eastern segments. Surface ship, near bottom, and grain
size studies from the saddle have been used...
Numerous analytical aids are available to apple producers to assist them in the decision problem of choosing among alternative apple harvesting systems. However, a majority of these techniques
fail to recognize the effect of apple orchard yield variability on system performance and economic efficiency. Furthermore, many of the suggested procedures...
Illite, chlorite, montmorillonite and kaolinite, as well as
natural marine sediments and mixtures of the standards were subjected
to density separation by centrifugation in a linear heavy-liquid
gradient.
The density layers yielded by centrifugation were recovered
and analyzed by X-ray diffraction. Separates were not monomineralic
but rather were polymineralic usually...
Razor clam diggers were sampled from March through September on Clatsop beaches for number and age composition of the clams harvested and the distribution and number of diggers. Data from beaches south of Tillamook Head was collected as time permitted. Samples of razor clams from Clatsop beaches were collected for...
The subfamily Aphrodinae is represented in the Nearctic Region by eight species contained in a single tribe, Aphrodini, and genus Aphrodes. The external and internal morphology, biology and ecology of the Nearctic members of the genus Aphrodes were investigated. Distributional evidence indicates that six of the eight species, belonging to...
The purpose of this study was to examine self-perceived
success as experienced in a learning environment, and its association
with self esteem. The relationships between pretreatment-self
esteem, posttreatment-self esteem, and perceived success experienced
in a five-week clothing construction course were investigated.
Measures of perceived sewing ability, perceived success,
and course...
Published April 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
This study examines the spatial characteristics
of the seafood processing industry on the Oregon Coast.
Three study areas are discussed: the Astoria area, the Newport
area, and the Coos Bay area. The industry is categorized
by four types of seafood processors. Types and
uses of processing and nonprocessing space are...
The purpose of this study was to test the effectiveness
of two religious education curricula in facilitating measure-able
concrete-to-abstract movement in children's religious
thinking. Subjects for the study were 47 fifth and sixth
grade children enrolled in the Sunday School classes of four
Oregon United Methodist Churches. Twenty-four children who...
The effects of disking, food plantings, and wheat plantings on a population of California quail (Lophortyx californicus) were studied from fall 1976 to spring 1978 on the E.E. Wilson Wildlife Area, Oregon. Twelve 16.2-ha study sites were established: 3 study sites for each treatment and 3 control sites. Disked areas,...
Root rot caused by Armillariella mellea creates roughly circular
disease centers of infected dead and dying trees in the younggrowth
ponderosa pine forest under study. Research objectives concerning
chemical control of the disease were: 1) to test the
effectiveness of certain chemicals in protecting living pines adjacent
to disease centers...
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,...
Published January 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
Resource Planning and Management (RPM) network is a graphical
representation of input-output relationships among activities and
resources within a system. Both resources (events) and activities
(decisions) are explicitly represented as nodes in all RPM networks.
Depending upon the relationships being depicted, RPM networks can
be classified into Relational (R), Precedence...
Nitrate reductase is known to be the enzyme regulating the
reduction of nitrate to nitrite in plants. This reduction is the first
and rate-limiting step in the transformation of inorganic nitrate to
a cellular nitrogen form. Since this reduction process is essential
to phytoplankton growth when nitrate is the only...
Descriptions and distributions are given of 28 species of
Liparidae occurring or possibly occurring below 200 m between San
Francisco and northern Vancouver Island, with keys for their identifications.
Nine genera are included: Careproctus, Elassodiscus,
Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis,
and two new genera are described, Odontoliparis and Osteodiscus.
Eight...
Holocene bulk sediment and component accumulation rates were
measured in twenty-eight piston and gravity cores taken from the
floor of the western Panama Basin and on the surrounding ridges.
Radiocarbon ages and oxygen isotope curves provided Holocene age
control in nine cores. Time datums in nineteen other cores were
inferred...
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...
Biological studies were conducted on a histozoic myxosporidan
Myxobolus insidiosus (Wyatt and Pratt, 1963) from the musculature of
Oncorhynchus tshawytscha (Walbaum). This organism is known to
occur in spring chinook salmon in Oregon and coho salmon O. kisutch
(Walbaum) in Washington. In addition Myxobolus kisutchi (Yasutake
and Wood, 1957) was...
The Cocos Gap is a deeper portion, or saddle, of the Cocos
Ridge and forms part of the western boundary of the Panama Basing
It is probably typical of saddles within most submarine ridges, In
order to determine the mechanisms controlling sediment dispersal,
the nature and sources of the sediments...
Published June 1979. 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 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...
This compilation lists in chronological order the oceanographic reports published in 1972, 1973 and 1974. It is an update of our reference 74-1 which brought together a listing all the numbered series issued, 1955-1973. It also lists theses for which degrees were awarded in 1974. A theses listing for 1962-1973...
Three studies during three consecutive summers were conducted
at the Squaw Butte Experiment Station to estimate relative and quantitative
forage intake of spring and fall calving cow-calf pairs on
summer range. In a drylot study (experiment 1) individual animal
consumption of fescue or meadow hay cut at 2- to 10-day...
Gravity and magnetic data from cruises by the R/V Yaquina in 1973
and the R/V Wecoma in 1975 provide new data that make possible the construction of a map of the free-air gravity anomalies at sea and simple
Bouguer anomalies on lano in Panama, western Colombia, and the eastern
Panama...
Published August 1977. 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 July 1975. 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
Six parent clones and their 15 single-crosses of tall fescue (Festuca arundinaceae, Schreb) were row-planted in Corvallis, Oregon, row and sward-planted in Columbia, Missouri, and evaluated for genetic variability, genotyp-eenvironment interactions and interrelationships in acid detergent fiber (ADF), neutral detergent fiber (NDF), hemicellulose (HCL), crude protein (CP) and in vitro...
In this thesis some applications of algebraic topology
are given. Kirchhoff's circuit laws are translated into the
language of algebraic topology: If G is the graph of
a network N, if i is a current distribution and if v is
a voltage distribution of N, then the two Kirchhoff laws...
The Marine Resource Management Program at Oregon State University
offers a unique opportunity for study to the marine environments student.
The integrated program affords a diversified experience in economics,
business, social and political sciences in addition to the natural sciences.
An internship which allows practical application of academic concepts is...
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 temporal relationships among selected correlates of
hepatocellular damage were investigated in cordotomized, hypothermic
rats intoxicated with carbon tetrachloride (CC1₄). Rats
were spinally transected between C6 and C7 and allowed to become
hypothermic. CC1₄ (1.25 ml/kg ip) was administered as a 1:1 solution
in corn oil. Plasma alanine aminotransferase (ALT)...
Research was initiated at the Squaw Butte Experimental Range in
southeastern Oregon to study the influence of crested wheatgrass
(Agropyron desertorum (Fisch.) Schult. ) herbage availability on relative
dry matter intake (DMI) of yearling steers. Herbage dry matter
production on an 18 ha range and daily fecal production of yearling...
Micro-organisms associated with gari, produced in Cameroun,
Africa, by the traditional method and that produced in the laboratory,
were isolated, identified, and screened for their abilities to produce
gari flavor. Gari production, under the controlled conditions was
attempted utilizing these isolates and the dairy starter cultures.
Some of the volatiles...
The ubiquitous presence of the coliform bacterium
Klebsiella in botanical environments has been demonstrated.
In this study, Klebsiella were found to multiply and
colonize growing radish plants following contamination of
seeds. All 29 cultures of Klebsiella tested from 5 different
environments were capable of growth to 10⁶-10⁷ cells/gram
of plant...
A laboratory study of anaerobically digested sewage
sludge was performed to measure equilibrium constants for
ammonia in the sludge. Measured constants describing the
solution and dissociation of ammonia in sludge were compared
to theoretical constants obtained from thermodynamic data.
No significant difference was found between these two sets
of constants....
Greenhouse and growth chamber experiments were conducted with
the following objectives: (a) to study the effects of N-1-naphthylphthalamic
acid (naptalam) on shoot and tuber production, rhizome transformation,
and growth of yellow nutsedge (Cyperus esculentus L.) plants;
(b) to study the effects of N-phosphonomethyl glycine (glyphosate) on
nutsedge plants at different...
This document contains a summary of changes in administrations and actions taken by the Pacific Marine Fisheries Commission in 1973, as well as an update for the status of various fisheries.