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ScholarsArchive at Oregon State University
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The purposes of this study were: to collect information relative
to the content of the sex education information adolescents have received
from selected sources, to ascertain their appraisal of the
value of this information and to test hypotheses...
1969-08-07 (iso8601)
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Attempts were made to rear Crambus topiarius Zeller,
Euchromius ocellus (Haworth), Crambus bonifatellus (Hulst) and
Crambus trisectus (Walker) on non-aseptic meridic diets containing
wheat germ or pinto beans as basic constituents. Various...
1969-08-15 (iso8601)
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The relationship of temperature and salinity to protein synthesis
was determined for cells of Vibrio marinus, MP-1. Protein synthesis
was measured by the incorporation of radioactive proline into
hot trichloroacetic acid precipitable material. At...
1969-11-21 (iso8601)
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In recent years the types of engineering data accumulated by many telemetry systems have become so diversified and complex, and
the environment in which these systems operate has become so restricting
that telemetry systems with increased...
1969-05-15 (iso8601)
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The purpose of this research was to examine the relationship
of two organizational variables, the type of instructional organizational
structure and the administrative position level, to the job satisfactions
of community college vocational...
1972-06-06 (iso8601)
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The extraction of tantalum fluoride complexes by large cationic
extractants (tetraphenylarsonium ion, TPA, and crystal violet) and
by methyl isobutyl ketone (MIBK) has been investigated as a function
of fluoride concentration using ¹⁸² Ta as...
1969-08-15 (iso8601)
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In the construction of a cab-over-engine semi tractor, Freightliner
Corporation of Portland, Oregon uses brackets to make the connection
between the front leaf spring mounts, bumper, front hinges
for the tilt-cab and the longitudinal frame rails....
1970-02-04 (iso8601)
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The purpose of this study was to investigate an application of
statistical concepts to quality control of highway construction. The
application was presented qualitatively and demonstrated quantitatively
by an investigation of asphalt content in...
1969-05-23 (iso8601)
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It is often necessary in communication systems to detect very
small signals that are buried in noise. One device used to accomplish
this is a lock-in amplifier. Initially the theory of operation is considered.
Then the circuit design of a low cost...
1969-10-31 (iso8601)
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The purpose of this study was to examine the culture
supernatants of various strains of Clostridium botulinum
for characteristic extracellular enzymes which can facilitate
their rapid identification.
A convenient, efficient, water-cooled flat gel...
1969-05-07 (iso8601)
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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,...
1975-08-14 (iso8601)
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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...
1971-02-19 (iso8601)
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Floods and ensuing damage have always been a problem for man.
Initial reaction to the frequent destruction was to avoid siting
permanent domiciles on flood-prone lands. As a result of increasing
population and pressure for development, flood...
1974-05-03 (iso8601)
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A study of the McKenzie River floodplains, terraces and glacial
outwash plains was undertaken to classify and describe the vegetation
and soils of a previously little studied synecological unit.
During the summer of 1971, 54 analytic vegetation...
1972-05-19 (iso8601)
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Six species of Ephemeroptera were studied in two sample areas
in Western Oregon: the Metolius River, Jefferson Co., and Oak
Creek, Benton Co. The Metolius River is characterized by low
fluctuations in flow and water temperatures (8-13 C); whereas,...
1969-04-21 (iso8601)
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An interactive man-hybrid computer algorithm is presented
for searching a set of dynamic system parameters which effect a
compromise between performance characteristics and give satisfactory
system sensitivity without any analytical calculations...
1968-10-04 (iso8601)
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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...
1971-10-12 (iso8601)
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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...
1971-04-12 (iso8601)
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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...
1971-08-02 (iso8601)
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Seven methods for delineating flood plains were evaluated. The
methods are classified : (1) Geomorphic Technique; (2) Soils Technique;
(3) Botanical Technique; (4) Hydrologic Technique; (5) Hydrologic-
Hydraulic Technique; (6) Historical...
1973-04-27 (iso8601)
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One hundred and fifty-one weanling rats of both sexes were fed
control diets or diets containing 160 ppm diethylnitrosamine (DEN) or
150 ppm N-2-fluorenyl-acetamide (FAA). The carcinogen level was
calculated so that the LD₅₀ should be achieved at...
1973-07-27 (iso8601)
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Bdellovibrio bacteriovorus 100 and B. stolpii UKi-2 each produce
two extracellular proteases which attack Azocoll (collagen)
while B. starrii A3.12 produces at least four such proteolytic
enzymes. Under standard growth and assay conditions each...
1973-09-11 (iso8601)
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The ability of mercury to inhibit β - galactosidase activity from
cell-free extracts of Streptococcus lactis, Escherichia colt and
intestinal homogenates of hogs, female rats, and humans was studied. Mercuric acetate was added in vitro to all...
1973-05-23 (iso8601)
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