Heavy metals, such as copper, zinc, and cadmium, are ubiquitous in stormwater and potentially toxic to aquatic organisms at low concentrations. Removal of heavy metals contamination by conventional treatment is expensive and does not always reduce metals concentrations low enough to ensure safety of all aquatic species. This research seeks...
In this work the electron energy distribution functions and the
anisotropic drift term of the velocity distribution functions in non-self-sustaining
(Townsend) discharges in argon were determined by
direct measurement for a range of E/N (electric field strength by
gas atom concentration) from 70 to 407 Townsends (Td). (One Td
equals...
A configuration-interaction determination of wave
functions has been made for the ²S and ²P states of lithium,
and for the ¹S and ³S states of the lithium ion.
Two 1s, one 2s, one 3s, and two 2p functions served as
starting functions for all four states. Results of the
total...
Background Maternal blood total mercury (THg) is a biomarker for prenatal methylmercury (MeHg) exposure. Few studies have quantified both blood THg and MeHg during pregnancy, and few studies have reported longitudinal trends.
Objectives We analyzed blood THg and MeHg in a cohort of pregnant mothers in Charleston, South Carolina (n...
The Lawrence Memorial Grassland Preserve, located in
Wasco County, Oregon, exhibits a wide variety of soil mounds and
patterned ground features. The size, shape, and distribution of
several elements of this peculiar landscape were analyzed with a
detailed map, field observations, and statistical procedures.
Common soil mound shapes are circular,...
Water-source and ice-maker heat pumps share many
characteristics. However, each presents different
technical difficulties that have prevented them from being
used more widely. In a water-source heat pump a very
important consideration is to reduce water consumption,
while in an ice-maker heat pump a major concern is to
reduce the...
This thesis is the first third of a coming of age novel called i. In this selection the central character, Bea Bouvier, prepares to see her estranged mother on a cruise ship to the Bahamas. She hopes her parents will decide to reunite as a family, though it becomes increasingly...
The drift velocity of electrons in pure hydrogen, in pure deuterium, and in mixtures thereof, has been observed at low pressures using the following pulse technique for these gases for the first time. Plane parallel electrodes of a known separation and immersed in the gas to be studied are connected...
The three-body heterogeneous and wall recombination coefficients for atomic oxygen were measured using an electron paramagnetic
resonance spectrometer to monitor the time dependence of the
atomic oxygen concentration. This measurement was made for a
pressure range of from .224 to 1.10 torr using pyrolysis of ozone as
a source of...
The energy distribution of electrons in Townsend discharges in
helium has been experimentally investigated in a direct fashion.
A discharge is initiated between parallel plates of a small cell
mounted at the center of a spherical retarding field energy analyzer.
The anode of the cell is perforated and some electrons...
A knowledge of the time rates for intermediate reactions
during the photolysis of nitrogen dioxide enables one to deduce the
possible intermediate reactions which are responsible. An experiment has been devised and constructed which will measure the time
rates for photochemical reactions occurring in ranges of one micro
second to...
HARNEY COUNTY HISTORY PROJECT
AV-Oral History #136 - Side B & #137 - Side A
Subject: Violet Brown
Place: Burns, Oregon
Date: March 11, 1972
Interviewer: James Baker
Full Text:
, All Rights Reserved
HARNEY COUNTY HISTORY PROJECT
AV-Oral History #136 - Side B & #137 - Side
Contamination of stormwater with Cu⁺², Pb⁺², and Zn⁺² has become an important issue with recognition of the neurotoxic effects of these metal ions on aquatic life. Low levels of aqueous Cu⁺² disrupt olfactory functioning in endangered Pacific Northwest salmon, decreasing their ability to avoid predation. One common solution is stormwater...
Provides information about complexity of watersheds. Outlines ways to form partnerships, to develop strategies for enhancing watershed resources, and to implement enhancement projects.
Traditional interpretations of James Joyce's Dubliners have often focused on the pervasive "paralysis" of the city, covered in the stories' range of "childhood, adolescence, maturity, and public life." However, these approaches have limited their focus on the women in the stories, often spotlighting the male characters--and the author--through a Freudian...
Previous studies have found that smoking may have a negative effect on
vitamin B-6 indices and have demonstrated a possible association between smoking
and depressed plasma pyridoxal-5'-phosphate (PLP) concentration. Individuals with
plasma PLP values below the adequate level of 30 nmoles/L might benefit from
consumption of vitamin B-6 supplements, but...
William James came of age at a time of great social and intellectual change in the United States. During this period, new professional identities proliferated, and a new culture of professionalization developed with important ramifications for conceptions of individual and social identity. Professionalization was also closely related to key intellectual...
This investigation consisted of two parts: A. stability, B.
bioavailability of vitamin B₆ in wheat. Three variables; whole wheat
flour (WHW), white flour (W) and W enriched with vitamin B₆ (WB₆)
were tested.
Stability of vitamin B₆ during bread making and storage of
bread and flour was determined. Bread was...
Serine transhydroxymethylase (STHM), a pyridoxal 5'-
phosphate requiring enzyme is indirectly involved in
pyrimidine deoxynucleotide metabolism. A decrease in the
activity of this enzyme could lead to altered deoxycytidine
(dC) metabolism. This study was undertaken to determine if
a vitamin B-6 deficiency affects dC metabolism. The effect
of a vitamin...
One of the most economically important genes in squash (Cucurbita spp.) is the B gene which conditions precocious depletion of chlorophyll in preanthesis fruit. The B genes are found naturally occurring in at least three of the five domesticated species of Cucurbita, including C. pepo, C. maxima and, most recently...
The present study was designed to investigate the
effects of exercise on vitamin B-6 metabolism. Four groups
of subjects (intermittent, college, untrained, and high school)
consisting of nineteen male and two female individuals, participated
in the study. The subjects exercised either on a
bicycle ergometer, by running three 1500 meter...
The purpose of this study was to measure plasma B-6 vitamers, and other factors which may affect the plasma concentrations of these vitamers under extreme physical conditions. Blood samples were drawn from 8 men and 3 women (43.7 ± 8.6 years) 30 minutes prior to the start of a 50-km...
The status of vitamin B-6 (B6) nutriture of nine
persons (4F;5M) with insulin dependent diabetes mellitus
(IDDM), nine persons (5F;4M) with non-insulin dependent
diabetes mellitus (NIDDM), and 18 control individuals
(9F;9M) was evaluated, using biochemical and dietary
indicators of B6 status. The biochemical indices employed
were plasma concentration of pyridoxal...
At a state university in the Pacific Northwest, the authors surveyed 477 matriculating college students about their immunization status, knowledge, self-perceived risk, and health risk behaviors for hepatitis A and B vaccinations. Review of immunization records revealed that 10% of these students were completely immunized for hepatitis A and 58.8%...
Four studies were conducted to evaluate the effect of varying levels of vitamin
B-6 (B6), protein and pyridoxine glucoside (PNG) on B6 status and requirements of
women. In the first two studies, women were fed a constant protein diet and vitamin
B-6 intakes of 0.84 to 2.39 mg/d during 10-...
The effect of dietary glycosylated vitamin B-6 on the bioavailability
of vitamin B-6 was determined in 4 women. A 44-d metabolic-balance diet
study was divided into a preliminary 8-d adjustment period followed by
two 18-d experimental periods. The subjects were divided into two groups
in a crossover design to compare...
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...
There were two main purposes to this study. The first was to determine the vitamin B-6 and pyridoxine β-glucoside content of selected foods commonly consumed in Malawi. The second was to examine the effect of preparation procedures of foods in Malawi on the content of vitamin B-6 and pyridoxine β-...
Two studies were conducted to determine the effect of varying vitamin B-6 (B- 6) status on lymphocyte mitogenic response and pyridoxal 5'-phosphate (PLP) concentration in peripheral blood mononuclear cells (PBMC) in young women. In the first study, women were fed 1 mg/d for the first week and 1.5, 2.1 and...
Trained male cyclists (6 in study 1, 5 in study 2) cycled to exhaustion (EXH) at
75% of VO₂ max twice; once in the non-supplemented (NS) state and once in the vitamin
B-6 (B-6)(20 mg PN) supplemented (S) state. The diet contained 2.3 mg B-6 in study 1
and 1.9...
Recent studies in men have shown plasma levels of vitamin B-6
and pyridoxal 5'-phosphate (PLP), the active form of vitamin B-6, to
increase with exercise. It was hypothesized that muscle glycogen
phosphorylase might be the source of these increases as this enzyme
has been shown to increase with increasing vitamin...
This investigation was designed to add to present understanding
of vitamin B-6 (B6) metabolism during exercise. Ten women, 5
aerobically trained and 5 untrained, were fed 4 controlled diets: a
moderate carbohydrate (49%) (MCHO) for 2 weeks, a high carbohydrate
(63%) (HCHO) for one week, MCH0+B6 for 2 weeks, and...
Forests are some of the most ecologically diverse and dense habitats on the planet. Research shows that the endophyte community, or the fungi, bacteria, and viruses within a forest ecosystem is highly diverse. Fungal endophytes are defined as fungi that live within the tissues of host plants. Relationships between fungal...
The purpose of this thesis is to argue that LeBron James’ expressions of activism are, in many ways, perceived as insincere, hypocritical or disingenuous to his followers on the social media platform Twitter. Using the theoretical framework of Affect Theory and Plutchik’s wheel of emotions, a close reading was conducted...
This is a set of documents and letters compromising a proposal by James McCauley to bring lobsters to the West Coast. The proposal involved the University of Rhode Island, the OSU Sea Grant Marine Advisory Program, Oregon State University, and the Oregon Fish Commission. The letters are to several people,...
I experimentally test the hypothesis that the potential for selfing
increases with plant size in Mertensia ciliata (Boraginaceae), a self-compatible,
profusely-flowering perennial. This follows from the
premises that 1) pollen dispersal by pollinators between flowers is
limited, and 2) individual pollinators, in this study bumblebees, will
visit more flowers per...
The effect of vitamin B-6 (B-6) status on plasma fatty acids (FA) levels and lipid
metabolism was investigated in this metabolic study. Eight female subjects were fed for 28
days. For the first 7 days, they were fed a constant diet containing 2.10 mg of B-6. For the
rest of...
To investigate the responses of healthy adult women to two
levels of vitamin B-6, a seven week two-part experiment was conducted
with five young adults and eight middle-aged subjects. During the
four unsupplemented weeks, dietary vitamin B-6 was 2.3-2.4 mg/day.
In the final three weeks, the same diet was supplemented...
The aim of this study was to investigate the vitamin B-6 status of Saudi adult males and compare the status between rural and urban subjects. Fifty-one adult male subjects were recruited from urban (n=31) and rural (n=20) populations of Riyadh. These subjects were reclassified to cigarette smokers (n=19), water pipe...
The purpose of this study was, first, to investigate whether there
is a vitamin B-6 requirement for carnitine synthesis and, second, to investigate
the effect of fasting on vitamin B-6 metabolism. An experimental
group of 72 rats (6 per group) were fed either a vitamin B-6 deficient
diet (-B6) (ad...
This study examined the effect of vitamin B-6 supplementation and exhaustive
submaximal exercise on plasma catecholamine concentrations, and the relationship
between plasma catecholamines and fuel use, heart rate and oxygen consumption. Five
trained men (age= 18-35 years; V0₂max=53 ml 0₂/kg/min.) participated in two controlled
dietary periods that were identical except...
Avermectin Bia is a member of a class of medicinally important
natural products known for its potent antiparasitic activity and
interesting structural features. In this thesis, synthesis of a
model for the spiroketal portion of the avermectins is presented.
Oxidation of (S)-2-methylbutanol, followed by a stereoselective
chromium mediated reaction with...
The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2,3,4,5,6-pentachlorobiphenyl (2,3,4,5,6-PeCB) to tetra-, tri-, di-, and monochlorobiphenyl products. Over 50% chlorine removal was observed over 160 days. The results of the ampoule experiment...
Previous studies suggest that vitamin B-6 supplementation can alter fuel metabolism during
exercise and plasma amino acid levels at rest. To examine the effect of vitamin B-6
supplementation on plasma fuel substrates and amino acid levels during exercise, five trained
males (age: 29±7; V0₂ max: 54.7±6.2 ml/kg/min) performed two separate...
The purpose of this study was to examine the effect of extreme exercise on vitamin B-6
metabolism and urea nitrogen. Nine men and five women completed two 5-day trials; Trial 1
(T1) included a 50-km ultramarathon on day 4 and during Trial 2 (T2) subjects were "inactive"
on day 4....
The objectives of this study were a) to determine
if pyridoxine (PN) supplementation increases the rate at
which plasma urea and ammonia return to basal levels,
following exercise, b) to determine, by open circuit
calorimetry, the utilization of carbohydrates, and c) to
further understand vitamin B-6 metabolism during and
following...
The ozone present in the atmosphere filters incident solar
ultraviolet (UV) radiation such that only the longer wavelengths of
the total UV spectrum emitted by the sun reach the earth's surface.
Atmospheric increases in nitrogen oxides and chlorofluoromethanes
represent a threat to the existence of this protective screen. As
the...
Four young trained men were studied during 50 min of continuous
bicycle ergometer exercise [30 min at 60%, 15 min at 80%,
and 5 min at 90% maximal heart rate (MHR)] to elucidate changes
in fuel metabolism resulting from a glycogen depletion-repletion
regimen, and to determine the effect of supplemental...
A new method for the preparation of the 2, 3, 3a,8a-tetrahydro-2-hydroxyfuro[2, 3-b] benzofuran, XXX, ring system has been developed. The synthesis envolved a substitution reaction of phenol, XXIV, with 1-bromo-2, 5-hexadiene, XXV, to give 2, 5-hexadien-l -yl phenyl ether, XXVII. The ether was rearranged via an ortho-Claisen rearrangement to 3-(o-hydroxyphenyl)-l,...
Part I: Racemic and asymmetric syntheses of a new substance with prospective antidepressant properties were achieved. In vitro assays with synthetic racemates (±)-25 and (±)-26 suggested that the former is a relatively selective inhibitor of serotonin transporter whereas the latter is a more balanced inhibitor of both serotonin and norepinephrine...
Pornography remains one of the most controversial topics in our culture. Politicians, religious groups, and special interest organizations tend to focus on the ‘effects’ pornography has on those who consume it, and fear that pornography is a threat to public health. The general discourse surrounding pornography is that men produce...
Published March 1997. 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 thesis discusses the African American authors Richard Wright and James Baldwin, and their views regarding how literature should be written. These views are examined as laid out in a selection of each author‟s essays, as well as through an analysis of the characters Bigger Thomas and Rufus Scott in...
My thesis examines how the American identity is constructed through thinking shaped by deception and domination, as James Baldwin argues in the corpus of his work. I rely on the work of Eddie Glaude Jr., Sean Kim Butorac, and Joel Schlosser to forward love in Baldwin’s political vision as being...
Shallow lakes exist in either a clear or turbid state, with the clear state characterized by an abundance of aquatic macrophytes, diverse aquatic biota, low water column nutrients and phytoplankton biomass, whereas the turbid state is characterized by the opposite. These two distinct states are maintained by reinforcing (positive) feedback...
Experiments on a novel, microscale hydrogen combustor heat exchanger (µCHX) are presented in this thesis. The µCHX has been designed to efficiently transfer thermal energy to a heat transfer fluid for use in desorption of hydrogen from a metal hydride storage system of a hydrogen-powered fuel cell vehicle. The experimental...
THE PURPOSE OF THE STUDY The major purpose of this study was to determine if there were statistically significant differences among the opinions of teachercoordinators, administrators, and guidance counselors concerning cooperative vocational education. Specifically the objectives were: (1) to determine if there were differences in the opinions of the three...
Wood and wood-based composites are being used in either
new or more demanding applications. A means is needed to
successfully analyze new materials and to predict their long-term
performance. Two techniques, dynamic mechanical
analysis (DMA) and time-temperature superposition (TTS) offer
a means to accomplish this objective. The outcome of this...
Rural areas tied to natural resource-based economic activity are encountering
difficulties in preparing for economic growth and development.
An important problem facing local officials of such an area, Union County,
Oregon, is the identification of county characteristics that may induce
the expansion of local businesses and location of new plants....
The objective of this study is to complete life cycle inventories (LCI) for laminated veneer lumber (LVL) and composite I-joist (I-joist) production in the two main forest products producing regions in the U.S., the Pacific Northwest (PNW) and Southeast (SE). LVL and I-joists are composite wood building materials that are...
Softwood plywood is one of the structural wood products studied in the CORRIM
II effort to document the environmental performance of wood product in residential
structures. Life-cycle inventory (LCI) models were developed to provide performance
data for plywood production by tracking all of its inputs and outputs in a gate-to-gate...
Rotary dryers are the most commonly used wood drying system in the particleboard industry. These dryers also play an increasingly important role in drying wood residues for fuel. Many potential benefits may be realized through an improved understanding of the rotary drying process. A rotary dryer simulation model was developed,...
The Confederated Tribes of the Umatilla Indian Reservation have begun a program aimed at increasing tribal participation in the farming of Reservation lands. This program is viewed by tribal leaders as a means to regain control of Reservation lands for Indians. The purpose of this study was to identify and...
This research provides state economic development planners and forest policy
makers with new economic information about the wood remanufacturing industry. An
overview describes each industry sector's employment, payroll size, and estimates of
annual growth rates. This helps planners determine which sectors are likely to provide
the most economic benefit to...
Dielectric quantification of material properties is a technology well established in many industries. The application of this concept to the forest products industry to measure adhesive cure, however, has been belated in part due to a lack of proven technology directed at industrial processes and products. It is of great...
The drying of wood is required in most forest products
manufacturing operations. Depending on the wood species,
dimensions, drying temperatures, and drying duration, the
amount of emissions and energy consumption can greatly affect
the operating cost, environment, and quality of wood dried.
As such, the forest products industry continues to...
Particleboard is a widely used composite panel product
consisting of consolidated wood particles and adhesive. On
a macro level the panel appears to be homogeneous, however,
its density varies both throughout the plane of the panel
as well as through its thickness. Of concern for this
thesis is the through-thickness...
Oriented strand board is a panel product used in
structural applications in home construction much like
plywood, yet little is known of the effect of temperature and
moisture content on its performance. The objective of this
study is to study these effects on oriented strand board and
for comparative purposes...
The substantial increase in resin costs due to the recent energy
crisis, increased public awareness to the problem of free formaldehyde
from boards bonded with urea-formaldehyde resins, and a projected
increase in the production of exterior board have emphasized the need
for new and substitute adhesive systems. One new development...
The ability of the resin to deform plastically can be an
important factor when considering the mechanical properties of particleboard.
Between resin droplets there exists an unbonded region
that forms the surface for a crack. When particleboard is deformed
stress concentrations develop at the crack tips in the voids. A...
Alder (Alnus rubra Bong.), a major hardwood tree in Western
Oregon, has potential as a raw material source for producing
oriented strand board (OSB), based upon its availability, wood
properties, and present under-utilization. While other studies
recently examined board performance of alder produced OSB and
obtained promising results, this study...
Past research has implied that differences in blender performance
between commercial and laboratory particleboard blenders
may not be attributed to resin distribution between screen fractions,
as is commonly believed in the industry today, but to which particles
within a screen fraction have resin and which do note
To test this,...
This thesis brings together under one cover a survey
of the history of the real number e along with a study
of the present state of its theory and calculation.
Efforts to manage stocks of salmonids in Pacific Northwest stream systems are complicated by the occurrence of several runs of a species thought to represent races rearing sympatrically as juveniles. In order to collect the population statistics needed to properly manage these stocks, managers need a method of identifying juvenile...