Temperature effects on osmoregulation were studied in larval
Ambystoma gracile. There was a pronounced effect on the osmotic
uptake of water through the skin. The rates at 5°C, 15°C and 25°C
were respectively 0.03 ml/hr., 0.1 ml/hr. and 0.2 ml/hr. for a
10g animal. The Q₁₀'s for these changes in...
Microbial activity within elevated CO2 and oxygen depleted environments changes with
density driven stratification overturn in the seasonally anoxic region of Devil’s Hole,
Bermuda. The temperature gradient developed during the summer months creates a
natural laboratory to study bacterial and virus population density and microbial
community dynamics in the anoxic...
A time and energy budget was constructed for a population of
dippers (Cinclus Mexicanus) in the Cascade Range of Oregon during
winter. A total of 12,202 point observations of activity were made
from nine observation blinds from 19 November 1973 to 10 February
1974. Approximately 50 percent of all observations...
Non-coding ribonucleic acid (ncRNA) is of interest for its diverse roles in cell and viral biology. RNA molecules vary greatly in terms of size, structure, and function. In recent years, the modification of existing RNA structures has been used for biochemical methods of enormous impact including CRISPR and RNAi methods....
Thermal analysis was used to investigate the following seven
systems: H₂S-B₂F₄, SOF₂-B₂F₄, COC1₂-B₂F₄, SF₄-B₂F₄, Xe-BF₃, NF₃-BF₃, and NF₃-BC1₃. In two of the seven systems
compound formation was observed.
In the system, H₂S-B₂F₄ the compounds H₂S[superscript .]B₂F₄ and
2H₂S[superscript .]B₂F₄ are formed. The compound H₂S[superscript .]B₂F₄ has a melting
point of...
All attempted synthesis of perfluoroalkyl boron bonded groups
have resulted in the formation of boron-fluorine bonds from the
probable decomposition by α-fluorine transfer. The substance alkali
metal di-n- butylborate (I) has been identified as the potassium derivative
by its reaction with di-n-butylboron chloride and isolation of
potassium chloride. The reaction...
The morphology and genesis of soils of the Willamette series
and of some Willamette-associated soils and their relationships to
geomorphic surfaces were studied in an area near McCoy, Polk
County, Oregon. Influences of regional extent, such as climate and
parent material, were related to the soils and landforms. The soils...
Typical power outputs of commercially available diode lasers are on the
order of 5 milliwatts. This thesis discusses the growth, processing and
fabrication of high power (lOO's of milliwatts) diode lasers. Devices were
grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical
Vapor Deposition (MOCVD). The MOCVD diode...
This Beef Cattle Nutrition Workbook is designed to be an interactive
tool to help beef producers manage their herds. It contains information
about beef cattle nutrient requirements, forage nutritive value, the importance
of minerals and vitamins to cattle health and performance, balancing
rations, economical supplementation strategies, heifer development,
and the...
This research was conducted to compare the performance of
community college students to four -year institutional students both
of which were enrolled in one of three different programs of general
college chemistry for nonscience majors during the 1967 -68 academic
year. The three programs were defined as follows:
Program A...
Published May 2002. Reviewed August 2013. 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 1989. 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
Temperature, salinity, and dissolved oxygen concentration
measured in an estuary were analyzed to determine if the effects of
coastal upwelling could be observed and used to effectively monitor
the degree of upwelling.
Hydrographic data collected weekly at a point four miles from
the entrance of Yaquina Bay (Buoy 15) were...
Wheat (Tritium aestivum) is an extremely important crop worldwide. It accounts for almost one quarter of the calories consumed each day by more than one third of the world’s population, and is grown over more land area than any other crop. Wheat breeding programs constantly strive to increase or maintain...
Hyperion is a hyperspectral sensor on board NASA’s EO-1 satellite with a spatial
resolution of approximately 30 m and a swath width of about 7 km. It was originally designed
for land applications, but its unique spectral configuration (430 nm – 2400 nm with a ~10 nm
spectral resolution) and...
The land tenure system in the United States contains a variety
of tenure types. A major characteristic of this tenure system is the
continual change of tenure types within a given region. As these tenure
types change, problems of a cultural, economic, and legal nature
are created and interact with...
An Ls-isocitrate:NADP oxidoreductase has been isolated and
purified from embryonic chicken liver. The enzyme was purified
200 fold by means of ammonium sulfate fractionation, gel filtration
chromatography on Sephadex G-200, ion-exchange chromatography
on Bio-Gel CM-100 and adsorption chromatography on hydroxylapatite
gel.
The purified enzyme was nearly homogeneous as determined
from...
Starting in 2001, just five years after its formation, Fox News had the largest nightly cable television news audience and has become an important participant in American news media. Despite outside claims of Fox’s conservative-leaning news coverage, Fox News claims status as an objective news source presenting “fair and balanced”...
A study was made to evaluate the effect of different rates of N
fertilization on Nugaines wheat. The variable N treatments provided
different N regimes as a basis for evaluating potential diagnostic
tests for assessing the N status of the wheat plant. The crop was
grown in Lane county during...
The concepts of medicine and health are becoming conflated. This can be
seen in the language of medicine and health: medicine is discussed in terms of
health and health in terms of medicine. A review of literature by medicine and
health scholars gives evidence of the conflation and of its...
A sequence of soils derived from tuffaceous rocks was sampled
on the H. J. Andrews Experimental Forest and adjacent U. S. Plywood
land to determine some genetic and stability relationships. The
less than two micron size fraction from each sample was characterized
by x-ray diffraction with respect to crystalline clay...
For over a hundred years, analysts have been concerned with
the static and dynamic behavior of flexible cables. Hanging,
towing and mooring cables have been extensively examined but little
work has been done in the area of the anchor deployment problem. In
the anchor deployment problem, a mooring line is...
Beach response to overwash processes is a topic of significant importance. Two
particular aspects of this topic were chosen for detailed analysis: the distribution of
maximum wave runup elevations and the cross-beach celerity gradient of overwash bores
on natural beaches. Data were collected using both traditional nearshore instrumentation
and recently...
The microsporidian parasite Nadelspora canceri infects Dungeness crabs, Cancer magister, along the United States Pacific Northwest coast. The prevalence and seasonal variation of N. canceri in Dungeness crabs from Alsea Bay, Oregon, are described based on examination of 2991 crabs collected at monthly intervals from October, 1991 to June, 1993....
The proposed Santiam Bar Natural Area Preserve
is located at the confluence of the Luckiamute, Santiam,
and Willamette Rivers in Polk and Marion Counties, Oregon,
It is situated on a peninsula supporting riparian and lower
terrace vegetation and associated wildlife. Former use
included forestry and agriculture. Present and proposed use...
Global atmospheric pollution from chlorofluorocarbons has the
potential of causing significant reductions in the concentrations of
stratospheric ozone. If the production of chlorofluorocarbons were
to continue into the future at the rate prevalent in 1977, the
steady state reduction in total global ozone could be between five
percent to ten...
The breeding biology and early life history of the Tufted Puffin (Fratercula cirrhata) were studied for two years on Goat Island, Curry County, Oregon. Artificial nest boxes were used to minimize disturbance and provide easy access to puffin eggs and chicks. Utilization of these boxes was 47.5% and 57.5% in...
An inexpensive method for calibrating an infrared analyzer to measure varying ranges of carbon dioxide partial pressures (Pco₂) is described. A discussion is made of the hydrographic (temperature, salinity, and sigma-t) and chemical (dissolved oxygen, AOU, Pco₂ pH, and nutrients) variables that were observed along the Newport hydrographic line in...
Waves are the primary input of energy in the nearshore region, and together with the currents forced through the transfer of momentum that occurs during the wave breaking process they are the principal mechanism for sediment transport in the nearshore. The basic physics of waves and currents are thought to...
The purposes of the study were twofold: (1) to compare selected
personality traits of male and female interscholastic and intercollegiate
athletic coaches with standardized norms for personality
traits established for all men and women, and (2) to compare personality
traits of interscholastic male and female athletic coaches with
the personality...
The Cascadia subduction zone has been characterized as a typical Chilean-type
subduction zone based on qualitative comparisons of plate age and convergence rate, with
simple forearc structure. However, the discovery of unusual structural styles of
deformation, variations in the morphology of the forearc, and its absence of seismic activity
suggest...
Across the U.S. social activism is on the upsurge, offering possibilities for a revolution against capitalism. However, these possibilities are potentially undermined by entrenched factionalism amongst the left. At root, such in-fighting is fostered by the creation of false dualistic frameworks on the transition out of capitalism and into the...
Fusarium spp. frequent conifer nursery soils yet are rarely recovered from coniferous forest soils. Experiments were performed to determine what influence humic-rich organic amendments and volatiles from soil, ectomycorrhizal fungi and ectomycorrhizae have on the populations of several physiologic and taxonomic microbial groups potentially related to this phenomenon. A comparative...
The aryl hydrocarbon receptor (AHR) is a ligand activated transcription factor that is a member of the basic helix-loop-helix PER-ARNT-SIM (bHLH/PAS) protein family of cellular sensors. The AHR is conserved across multiple animal phyla and is required for proper vertebrate development. A structurally diverse group of chemicals, including polycyclic aromatic...
Dithiocarbamates are widely used agricultural pesticides, industrial chemicals and
effluent additives. DTCs and their related compounds have historical and current
relevance in clinical and experimental medicine. DTC developmental toxicity is well
established, but poorly understood. Dithiocarbamates according to the U.S. EPA have a
mechanism of action involving, "the inhibition of...
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 education (particularly graduate education) of Americans
who were active in astronomical research between 1876 and 1941
is assessed for its effectiveness in preparing the astronomers for
careers in research. This period contains three dynamic changes:
the growth of American astronomy in becoming the world's leading
community of astronomers, the...
Parasitic infections and immune challenges can affect host reproductive fitness and, ultimately, the evolution of host populations in a myriad of ways. The fitness implications of parasitic infections range from increased host mortality to subtle changes in reproductive investment. From alterations of behaviors, sexual signaling, and competitive ability to changes...
A complete solution, exact to second-order, for wave motion
forced by a hinged-wavemaker of variable-draft is presented. A
solution for a piston type wavemaker is also obtained as a special
case of a hinged-wavemaker with negative infinite draft. The
existing Stokes inviscid theories for mass transport is extended to
include...
Since the early 1990s, declines in northern spotted owl (Strix occidentalis caurina) populations have been documented through extensive field surveys and range-wide demographic analyses. Although loss of late-successional forest has been credited as the primary cause for spotted owl population declines, environmental variation has also been shown to influence vital...
This study traces the historical foundations of the concept of
constant ionic proportionality and the equation (Salinity [S%₀] = 1.805
Chlorinity [Cl%₀] + 0.030) which has been in general use in oceanography
since 1902 until 1969 and which is based upon this constancy,
The notion that the constituents present in...
The objective of this dissertation is to enhance the monitoring of forest ecosystems through the utilization of remotely sensed data to address the exigencies posed by the Anthropocene. On a global scale, rising temperatures and fluctuating precipitation patterns have strained forests and produced shifts in natural disturbance regimes. Additionally, the...
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...
This study examines the seasonal variability in temperature and
salinity of the nearshore waters off Oregon and Northern California.
Specifically, temperature and salinity variations during summer and
winter were ana1yzed from data gathered at shore stations along the
coast and from hydrographic data collected within 25 nautical miles
of shore....
Revised September 1991. A newer revision exists. 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
Microorganisms play key roles in ocean biogeochemistry. However, several
predominant groups of uncultured bacterioplankton thought to contribute to
important biogeochemical processes in the oceans are known primarily from gene
cloning studies. Although these studies have greatly expanded our view of
microbial diversity in the oceans, they are not quantitative and...
A detailed study of iron concentrations measured by the reducible,
reactive ferrous, and extractable methods was conducted in Auke Bay,
Alaska during June 1973 and in Hood Canal, Washington during October
1973 and April 1974. The concentrations by each method were generally
highest at the bottom and decreased towards the...
I. THE EFFECT OF FEEDING PROGRAMS ON REPRODUCTIVE TRAITS AND
SELECTED BLOOD CHEMISTRIES OF CAGED BROILER BREEDER MALES:
1. FEED RESTRICTION LEVELS:
The effects of five different feeding levels (136, 125, 113,
102, and 91 g/male/day of a 13.1% crude protein (CP), 3167 kcal ME/kg
feed) on the reproductive traits...
Published January 1982. A more recent revision exists. 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
Sheep live weights, herbage standing crop, and herbage quality
are presented from a three-year grazing management study comparing
set stocking, four-paddock rotational grazing, and four-paddock
forward rotational grazing systems. In both rotational grazing and
forward rotational grazing systems, sheep were sequentially moved
from one paddock to the next every 5...
The western cherry fruit fly, Rhagoletis indifferens
Curran, was studied to determine the suitability of the
sterile insect technique for its control. To obtain
insect material, field collection of maggots is preferred
to sifting of soil or rearing on artificial diet.
The western cherry fruit fly is strictly univoltine;
only...
From July, 1982 to August, 1983 I had the privilege of serving an internship
as an oceanographer at the National Marine Fisheries Service Beaufort
Laboratory. During the period of my appointment I assisted in a preliminary
assessment of the potential fishery impacts of ocean thermal energy conversion
(OTEC) power plants....
The effect of adding a high moisture gel manufactured from a combination of konjac flour (2%) and kappa carrageenan (1%) to a reduced fat ground beef system was evaluated. Lean beef (95-10) and 50-50 fat beef trimmings were used to manufacture reduced fat ground beef patties containing konjac flour/carrageenan (K/C)...
It is the purpose of this thesis to present a course of study in
general "Power Mechanics" which would enable the junior high school student
to understand the elementary principles of power generation and distribution,
and to appreciate the relationships of the use of power to our social order.
The...
A study was done on the zoogeography of species of oceanic
shrimp in the North Pacific from 22°N to 56°N and from 124°W to
145°E, using samples of shrimp collected from 1954 to 1969. These
collections were made during the following cruises: John R. Manning
Cruise 22, and the Hugh...
Three distinct stages of flower cluster abscission were identified
prior to fertilization: flowers which did not begin development (stage
1), flowers which had begun development (stage II) and clusters which
had begun to form distinct nuts (stage III). Abscission of stages I
and II coincided with a rapid increase in...
Objectives of the Study
The study attempted to accomplish the following:
1. Document the fundamental or conservative nature of
early American higher education, especially the nine
colonial colleges, and verify its seemingly irrepressible
progression toward liberalism.
2. Determine the nature of variables associated with the
process of liberalization.
3. Isolate...
The geologic processes at work in American Samoa have long been a point of scientific debate. Of its numerous volcanic formations, few breach sea level, leaving an enormous proportion of their mass unavailable to traditional observation. This study aims to describe the deep sea geomorphology of American Samoa through compilation,...
In this expanded new edition of Living with Earthquakes, Robert Yeats, a leading authority on earthquakes in California and the Pacific Northwest, describes the threat posed by the Cascadia Subduction Zone, a great earthquake fault which runs for hundreds of miles offshore from British Columbia to northern California. New research...
Premature birth interrupts the typical development of the human fetus, leaving the infant born with underdeveloped gastrointestinal and immune systems. Preterm infants have reduced stomach acidity, reduced digestive protease activity, more permeable intestinal membranes, impaired innate and adaptive immune response, and poor microbiome development. Due to these factors, preterm infants...
Subduction zone earthquake and tsunami hazards affect tens of millions worldwide and the recurrence of these disasters can be evaluated with paleoseismic techniques, because earthquake cycles (and their supercycles) typically span many millennia. In these three chapters, I discuss a suite of analyses I use to evaluate the sedimentary record...
Full Text:
the fi rst three):
Sandra G. Pa on, my mother. Her support of me has been infi nite.
Robert W. Pa
Persistence has been identified as an issue at all levels of higher education,
and numerous strategies have been attempted to stem the flow of students who leave
an institution before completing their programs of study. Persistence research
abounds at the community college, four-year college and university levels, but little
research...
Salmonid run sizes are strongly affected by their early marine stage. Fully understanding the life history of salmonids means understanding how they interact with their marine environment and with other fishes. Changes in the biological and physical environment off the Columbia River region affects the distribution and abundance of predatory...
The purposes of this investigation were: (l) To attempt to
determine how well programs of guidance services were felt to be
functioning in meeting the needs of pupils through an analysis of
guidance services in selected high schools in Oregon, and (2) To
develop recommendations for improving programs of guidance...
This study employed ethnographic methodology to investigate and record the post-camp, pre-assimilation period of Laotian refugees.The primary goal was to document the special problems and experiences of the Laotian population as they attempted to adjust to new roles and expectations within mainstream North American society.Oral histories and biographical statements focused...
The reliability and survivability of a wave energy converter (WEC) is highly dependent on the variability and non-linearity of the ocean itself. Ocean variability occurs on many time scales. Climate variability occurs decade-to-decade, and year-to-year in the number and intensity of winter storms. Seasonal variation of wave height and period...
The southern half of the upper Nehalem River basin contains
the most complete section of lower to middle Tertiary marine sedimentary
and volcanic rocks in northern Oregon. Determination of
stratigraphic relationships of six formations, and their depositional
environments and provenance is the chief objective of this paper.
More than 75...
Full Text:
Nehalem river basin, Oregon
in
AN ABSTRACT OF THE THESIS OF
ROBERT OTIS VAN ATTA for the DOCTOR. OF
Raspberries have been popular since the time of the ancient Greeks. Red raspberries are cultivated throughout the world, particularly in the Pacific Northwest region of the United States and Canada. The raspberry bushy dwarf virus (RBDV) causes significant reduction in yield and crumbly fruit in raspberries, blackberries and raspberry-blackberry hybrids....
Mycotoxins are food-borne toxins produced by molds which are commonly found on animal feeds of economic significance. Toxic doses of these compounds vary widely across livestock species, and even within a species when considered across all stages of development and production. This variation is due to the wide range of...
Despite several decades of research developments, the survey-based contingent
valuation (CV) method remains one of the most controversial topics in environmental
economics. As the procedure matures and more applied studies are completed, there
is increasing pressure to make the results policy relevant. This research is composed
of three distinct yet...