Crown gall infected and healthy Kalanchoe pinnata (Lam.)
Persoon plants were analyzed for soluble amino acids. Specifically
the amino acids in young leaf, mature leaf, stem, root, and gall
tissues were quantitatively measured. The plants were inoculated
with the bacterium, Agrobacterium tumefaciens (Smith and Townsend)
Conn., on one side of...
The purpose of this study was to determine the agricultural interests of students and needs for expansion of the agricultural education program in the Salem school district. Three basic areas were included in the study: (1) the self-expressed interests of students for agricultural instruction in agricultural careers, forestry, greenhouse and...
A method for Agrobacterium-mediated transformation of hybrid
poplar (Populus alba x P. grandidentata) suspension cultures and
regeneration of transformed plants is described. The best protocol
was one in which suspension cultures were inoculated with
Agrobacterium tumefaciens to a density of 10⁷ cfu's/ml, cocultivated
for 48 hours, plated to cellulose acetate...
The purpose of this study of the Lyons flora is to determine the age and paleoecology of the flora through the examination and identification of the fossil plant species of the flora. The plant fossils comprising the Lyons flora were collected from a locality in the upper Thomas Creek area,...
Truancy and dropout are two issues plaguing school districts across the nation. The short- and long-term consequences of both problems are complex and far reaching, affecting students, families, and communities. Once thought of as a problem at the secondary level only, truancy and absenteeism are increasing at the elementary school...
Twenty managers of large diversified irrigated farms in the Willamette Valley area of Oregon were interviewed about the economic information and analysis techniques they use when making crop selection decisions. Two community college farm management instructors, two agricultural lenders, and two certified public accountants working with farmers were interviewed about...
The cultivated sunflower (Helianthus annuus L., x=17) is one of the most important annual oilseed crops in the world. There are very few publicly shared sequence-based DNA markers and genetic maps in sunflower, even though molecular DNA markers and genetic maps have become widely used in all areas of genetic...
Boron sprays produced fruit set increases in 'Barcelona'
hazelnut orchards in 1984 and in 1985. The absolute fruit set was
correlated with leaf B content but not with nut B. With relative
fruit set (RFS), B content of nuts in May (r = 0.63**) was more
strongly related to set...
The purpose of this study was to evaluate a contextual model for integrating lessons
from the LifeKnowledge curriculum into the agricultural science and technology (AST) course content. This was measured using the National FFA Organization’s online precept indicator which is part of the LifeKnowledge 3.0 curriculum. Ninth grade students at...
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_____________________________________________________________________
Gregory W. Thompson
The purpose of this study was to evaluate a contextual model for
The traditional practice on beef cow-calf ranches in the high
desert region of Eastern Oregon has been to breed the cows to calve
in the Spring months. Interest has been growing recently in the practice
of Fall-calving; that is, breeding cows to calve in the months of
October and November....
Victoria blight, caused by fungus Cochliobolus victoriae, is a disease originally described on oats and recapitulated on Arabidopsis. Victoria blight is used as a model plant disease that conforms to an inverse gene-for-gene interaction. C. victoriae virulence is dependent upon its production of victorin, a host-specific toxin that induces programmed...
In situ light and dark planktonic and benthal respirometers were
used to measure the oxygen requirements of Yaquina estuary water
and benthal deposits. Respirometer devices were constructed so that
actual conditions of mixing could be simulated and benthal deposit
disturbance would be minimized.
A mathematical model of a benthal respirometer...
A diversity in climate, geologic parent material, and soil
characteristics exist in Jackson, Josephine, Coos, and Douglas
Counties of southwest Oregon. Previous field trials and soil testing
results have revealed uncertainties as to the phosphorus (P) status
of the soils in this area. Twenty-four sites from nine agriculturally
significant soil...
Hypermediation, as described by Jay Bolter and Richard Grusin in their book Remediation, is a style of writing, recording, presenting, etc. that “makes us aware of the medium or media and (in sometimes subtle and sometimes obvious ways) reminds us of our desire for immediacy” (34). This mode of production...
Emerging adults often encounter obstacles and adversity in pursuit of occupational identity. College counselors are responsible for delivering mental health, wellness, and career services to distressed students facing unprecedented challenges to enter the workplace. The purpose of this study was to investigate how counselors can promote career resilience in emerging...
School attendance is perceived as a critical issue in today’s primary and secondary educational systems. This manuscript reviews literature that speaks to the complexity of issues related to truancy and then posits that many of the interventions typically recommended to address truancy are ones that school counselors already provide or...
The purpose of this study was to determine the extent to which an Immersion Bilingual Mathematics Institute (IBMI) can affect the mathematics achievement of entering seventh grade students of Mexican-American heritage. Mathematics achievement was defined as
mathematics skills measured by the Mathematics Computation and Mathematics Concepts and Applications tests of...
The role and function of school counselors remains a consistent source of concern in the school counseling profession. Aligning school counseling activities with comprehensive school counseling practice is a way to standardize the profession. Creating a school board policy for counseling is a strategy to gain support for and institutionalize...
The idea for this research projected stemmed from research I conducted during my Economics 439: Public Policy course. This research project examines the idea of Voter Identification Laws and Regulations and their effect on voter turnout and participation in the United States of America. I previously found that economists studied...
This thesis explores some of the ethical issues pertaining to the use of so-called radical enhancement technology. Key concepts analyzed include “normal function”, “human being”, and “personhood.” I argue that the use of these key concepts in the debate thus far has lacked philosophical rigor, and that a reexamination of...
Homosexual men in Nazi Germany experienced legal and social oppression that was rooted in both the cultural homophobia of Twentieth Century Germany and the existential homophobia of high-ranking Nazi officials. However, the Nazi Regime’s enforcement of homonegative policy was not unilateral, often ignoring the actions of members of Nazi-affiliated groups....
In this thesis, in order to understand why Buddhists in Southeast Asia protect rainforests and to establish a solid foundation for Buddhist environmental ethic, my first two tasks are to draw a clear picture regarding two major environmental concepts--nature and anthropocentrism--in Buddhism and to defend the claims that the Buddhist...
This thesis analyzes the emerging technology of hydraulic fracturing and shale gas extraction process through a pluralistic philosophical approach. Rather than defending traditional values in nature, such as intrinsic value, I defend a metaphilosophical pragmatism centered on policy implications. I argue that different philosophical positions will, most of the time,...
Collaborative decision-making is often promoted as a means to achieve socially acceptable and enduring solutions to natural resource management issues, and one that holds promise for resolving “wicked” problems. However, success rates for implementation of collaborative recommendations are unknown. This paper explores challenges to collaborative salmon fishery management in Prince...
Grapes (e.g. Vitis vinifera L.) are one of the more important fruit crops from an economic standpoint with world market values over 550 million US dollars in 2007 and 2008, second to apples (United States Department of Agriculture). While a satisfactory level of ripeness is of primary concern, the quality...
An examination was made of some reactions involving a transfer
of carbon from boron to carbon. In the case of the reaction of
a C[subscript n] alkylorganoborane with dichlorocarbene the intermediate was
a C[subscript n]₊₁ chloroalkylorganoborane. Oxidation of this intermediate
yielded an homologous acid (33%) and the usual alcohol (66%)....
The high quality feedstuffs which are used in poultry feeds
are costly and could be used directly for human food. There is less
competition for fibrous feedstuffs which are less digestible by
humans and other nonruminants.
Feedstuffs containing crude and refined dietary fiber were
examined for their effects on performance,...
The 2002 Biscuit Fire burned through more than 200,000 ha of mixed conifer/
evergreen hardwood forests in southwestern Oregon and northwestern
California. The remarkable size of the fire and the diversity of conditions through
which it burned provided an opportunity to analyze the correlates of burn severity
across vegetation types...
In the past several years, international interest in gas hydrates in marine sediments has
increased considerably because of increasing recognition that the large volume of gas stored
in hydrates or trapped beneath them is a significant fraction of the global methane budget,
and may therefore be a source of energy...
Feedlot finishing of beef cattle in Southern Alberta involves
income risk due to the variability of prices of feeders, feed and
finished cattle. Several strategies are available to reduce this
risk, including hedging of cattle on feed, participation in a Federal-
Provincial government and producer established income stabilization
program for...
Germination of immature (Stage III) and mature (Stage V) wheat (Triticum aestivum L. var. Chinese Spring and Yamhill) embryos is prevented by the inclusion of 10⁻⁴ M abscisic acid (ABA) in culture medium. In addition, Stage III embryos develop into mature embryos in culture medium containing ABA. In the absence...
Though previous genetic research studies performed on Caenorhabditis elegans
found that high levels of endogenous oxidative stress resulted in decreased health, and
that mitochondrial DNA deletions accumulated with age in these organisms, no studies
have been conducted to link these two separate findings. This study correlated these
separate results by...
Callianassa californiensis Dana and Upogebia pugettensis (Dana) inhabit estuarine mudflats and are subjected to the hypoxic conditions that prevail during tidal exposure. Metabolic responses for both these species, as indicated by critical oxygen tension, metabolic rate, and tolerance to anoxia were determined. An oxygen macro-electrode and a physiological gas analyzer...
This capstone project is presented for completion of Oregon State University’s (OSU) Master of Natural Resources Program. This project is an expansion of the author’s research completed as part of the Water Conflict Management and Transformation Certificate and as part of the overall Master of Natural Resources Program.
Located on...
Testes size as an indicator of future growth was examined
in a total of 45 bull calves from spring calves born in 1978
and 1979. Scrotal circumference measurements were used as the
physical indicator of testicle size in the live animal.
Growth traits studied were preweaning average daily gain,
weaning...
Gene regulation is a complex mechanism that controls the spatial and temporal expression of genes in a living cell. My dissertation studies focus on two problems. First, tissue-specific gene expression prediction from DNA sequence and chromatin state, and second, the accurate discovery of small over-represented regulatory circuits in gene regulatory...
The Oregon 4-H Carcass of Merit Program offers recognition to Oregon State University Extension 4-H members who breed and/or buy, feed, and raise animals whose carcasses meet the “ideal” for red meat: lean, early maturing, high yielding, and containing minimal external fat. This
publication was prepared for 4-H leaders and...
This dissertation presents the results of two studies that explored the constructs of compassion fatigue, compassion satisfaction, and self-compassion. Each study employed a cross-sectional survey design to survey elementary, middle, and high school counselors in Oregon. The online questionnaire was developed using the Professional Quality of Life Scale (Stamm, 2009),...
Fennema and Sherman (1976) defined math anxiety as "feelings of anxiety, dread, nervousness, and associated bodily symptoms related to doing mathematics" (p. 326). The longitudinal impact that math anxiety has on adolescent students can include their experiencing reduced math achievement, avoiding majors that involve large amounts of math, and choosing...
Commercial production of soybeans in Oregon has been limited. In
1977, less than 1,500 acres were grown, primarily in the Columbia Basin
area. However, interest in soybeans as a possible "new crop" for Oregon
has arisen because of the (1) recent strong soybean price, (2) the high
cost of transporting...
Results of recent studies on Piagetian cognitive development,
though equivocal, showed that the architectonic of formal operational
schemata is not possessed by a sizeable percentage (up to 52%) of adolescents
and young adults. The purpose of the present study is two
fold: (i) To assess the cognitive levels of a...
The complexity of human/riverine systems has led to an increasing focus on land
use patterns and policy. My goal is to understand the dynamics of a coupled human and
natural system. The central question is how people in the community of Scio, Oregon
perceive flooding, water quality, and riparian habitat....
The Thomas Kay Woolen Mill once manufactured cloth with a
reputation renowned throughout the United States. This study is an
attempt to report the history of the mill. Data are categorized by:
the Kay family; production including plant, machinery, raw materials
used, goods manufactured; management including the effects of
national...
Longitudinal patterns of fish and benthic invertebrate distribution and
habitat use were similar in Thomas Creek, Oregon but clarity of these patterns
differed. I studied fish and aquatic invertebrates simultaneously, at multiple
scales, and used multivariate statistical techniques to compare responses to the
same environmental conditions. Both types of organisms...
The complete genome of snakehead rhabdovirus (SHRV) was cloned and
molecularly characterized. This was initially accomplished through the sequence
determination of its glycoprotein gene and the phylogenetic analysis of this gene with
orthologous genes from other rhabdoviruses. The phylogenetic analysis revealed that
SHRV groups with viruses of the genus Novirhabdovirus....
Messenger RNA (mRNA) therapy has massive potential to treat various genetic disorders by providing effective proteins to the diseased cells and tissues. Its therapeutic applications include protein replacement, genome editing, and immunotherapy. For successful mRNA treatment, mRNA must be delivered to the cytosol of target cells. One of the leading...
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...
The influence of environmental and genetic variation in plant
morphology and development on eriophyoid bud mite (Phytoptus
avellanae Nal. and Cecidophyopsis vermiformis Nal.) behavior,
survival and colonization on Corylus avellana L. was studied. The
distribution pattern of galled buds was consistent with the
observation that mites colonize only those buds...
Research overwhelmingly suggests that Black and Brown students face unjust and inequitable environments in K-12 schools in the United States (Bradshaw et al., 2010; Carter et al., 2017; Coles & Powell, 2020). These injustices often occur as a result of systemic racism and are replicated because of embedded racist policies...
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Karen D. Thompson
Abstract
Research overwhelmingly suggests that Black and Brown students face
Rural communities face acute challenges in providing education. Attachment to place plays a significant role in rural communities but little research exists on how it influences policy. One policy response to financial, physical, and cultural factors in rural Oregon is the four-day school week (FDSW). Through health survey responses of...
Co-teaching and collaboration are an increasingly popular service model for English as a second language (ESL). In this model, the language specialist, sometimes called the ESL teacher, works together with a content teacher, each using their respective expertise to meet the needs of students who are identified as English learners...
Children enter kindergarten on unequal footing. Early childhood experiences shape initial disparities and predict academic achievement and life trajectories. One influence, child care, is not available to all children in Oregon as most counties qualify as child care deserts. This paper analyzes if child care access has an effect on...
Children enter kindergarten on unequal footing. Early childhood experiences shape initial disparities and predict academic achievement and life trajectories. One influence, child care, is not available to all children in Oregon as most counties qualify as child care deserts. This paper analyzes if child care access has an effect on...
I defend robust realism from arguments that raise epistemological challenges to it based on considerations about either moral disagreement or the genealogy of our moral beliefs. The first argument is the “Argument from Conciliationism,” which contends that the moral disagreements that obtain between moral peers give us reason to believe...
Microbial communities in Arctic coastal lagoons drive biogeochemical cycles at the terrestrial-marine interface and help to determine the fate and form of resources like nitrogen (N) and carbon (C) as they are delivered to the Arctic Ocean. Though rising rates of primary production in the Arctic Ocean are well-characterized, the...
On 15 February 1976 the USSR Research Ship PROFESSOR VIESE and the
US R/V T.G. THOMPSON rendezvoused in the southern Drake Passage. The
ships simultaneously occupied hydrographic stations as close together as
feasible. Calibration standards for salinity, dissolved oxygen, and
dissolved reactive phosphate and silicate were then exchanged by the...
This investigation was designed to investigate the use of an answer-until-correct procedure on multiple-choice quizzes in an independent study mathematics course. This procedure was compared to the standard multiple-choice procedure with respect to student achievement, student anxiety, and test reliability. Using the answer-until-correct procedure students were made immediately aware of...
This dissertation is comprised of four studies on different elements of Populus biotechnology and genomic science: 1) growth improvement by recombinant DNA (rDNA) modification of gibberellin (GA) metabolism; 2) gene editing using zinc-finger nucleases (ZFNs); 3) induction of floral sterility by RNA interference (RNAi) of AGAMOUS (AG) gene homologs; and...
The first goal of this study was to understand the role of u-calpain in skeletal muscle protein degradation in cultured muscle cells. Several strategies were developed to down-regulate endogenous u-calpain activity and m-calpain activity in rat myotubes. These included over-expression of antisense u-calpain (AnsL), dominant negative u-calpain (DN-u-CL), antisense 30K...
Historically, the difficulty of obtaining pure cultures of abundant marine
microbial plankton has an obstacle to reconstructing the underlying
mechanisms of biogeochemistry in the ocean. While a number of dominant
marine species from the ocean surface have been cultured, the dominant
microbial plankton of the dark ocean proved far more...
Crown gall disease is caused by the ubiquitous soil bacterium Agrobacterium tumefaciens which transfers a portion if DNA (T-DNA) into the plant cell. Preventing infection by using the biocontrol strain Agrobacterium radiobacter K84 is currently the only defense for crown gall. Two different resistance strategies were examined in this work....
The purpose of the study was to analyze and compare the teaching
styles of a trial group of junior secondary science teachers
trained to use and using new materials, and a control group of teachers
using traditional materials. The new materials consisted of portable
science kits, demonstration apparatus, teacher's guides,...
The onsite costs and benefits of conservation tillage in the
Camas Prairie Region of Northern Idaho were estimated. The evaluation
of these costs and benefits included a measurement of the
long-term effects of soil erosion on cropland productivity.
A model developed by Daniel Taylor (1982) was used as a base...
Callipyge (CLPG, n=16) and normal (N, n=11) lambs were
produced from Polypay dams and Dorset sires heterozygous for
the CLPG gene to study the effects of the gene on growth and
carcass and meat quality parameters. CLPG lambs had higher
average daily gain than N lambs (0.26 vs 0.23 kg/day,...
Multicultural competency has been established as important component of communicating within a cross-cultural ecology. Yet, there is evidence that many counselors struggle to communicate and interact outside of their own cultural communication norms. Until this study, no one has attempted to integrate culture and intelligence as a unitary counseling construct....
This study was undertaken to determine if strontium chloride could be used to create a trans-generational otolith mark in steelhead (Oncorhynchus mykiss). I completed two strontium injection trials and a survey of juvenile steelhead from various steelhead hatcheries. The two trials measured Sr:Ca ratios in otoliths in response to injections...
The reaction of certain purin-8-ols with phosphorus
oxychloride and N,N-diethylaniline are described.
9-Amino-6-chloropurin-8-ol monohydrate reacted with
phosphorus oxychloride and N, N-diethylaniline to yield
the phosphorus oxychloride adduct. Other purin-8-ols
were prepared and the production of analogs similar to
the previously mentioned adduct was attempted.
6-Chloropurin-8-ol and 6, 9-diaminopurin-8-ol hydrochloride
monohydrate...
In this study of toxigenic and non-toxigenic strains of Clostridium
botulinum type E, attempts were made to induce toxin production
in non-toxigenic cultures by exposure to mutagenic agents
and to differentiate the organisms by immunodiffusion. First, cultures
of non-toxic Cl. botulinum type E were exposed to various
mutagenic agents in...
This investigation was designed to determine the extent to
which students who are completing planned curricula in science education
are proficient in aspects of critical thinking, and possess
understandings of science consistent with those of the practicing
scientist. The effects of science curricula upon the development of
these abilities and...
Marine systems undergo changes in community composition over time as a result of a variety of environmental and anthropogenic factors. Understanding these community changes and the factors that drive them is critical for ecosystem management of marine resources. The Gulf of Alaska (GOA) is a large marine ecosystem that includes...
Cells of the ventrolateral dermomyotome delaminate and migrate into the limb buds where they give rise to all muscles of the limbs. The migratory cells proliferate and form myoblasts, which withdraw from the cell cycle to become terminally differentiated myocytes. The regulatory mechanisms that control the later steps of this...
Beginning with the inception of American art history as a formal discipline in the 1940s, the dominant mode of interpreting nineteenth-century American landscape painting has been to view aspects of the landscape as symbols for grand cultural, religious, national, and moral narratives. While this method of interpretation highlights some key...
Oregon is the world’s leading producer of crimson clover (Trifolium incarnatum L.) seed. Recent research has reported that seed yield has been increased in cool-season grass and red clover (T. pratense L.) seed crops with the application of trinexapac-ethyl, a gibberellic acid biosynthesis inhibiting plant growth regulator (PGR) and lodging-control...
Embryonic development, where organs and major structures begin to develop, requires precise coordination of numerous gene regulatory pathways. Fendrr is an long non-coding RNA (lncRNA) that plays a role in regulating gene expression in mesodermal tissues during early embryonic development in mouse. The lateral plate mesoderm (LPM) is an earlier...
Skeletal muscle is the largest organ in the body by mass, comprising roughly 40% of total bodyweight in adults. It plays diverse and unique roles that include movement, locomotion, and support for posture and internal organs, among others. The structural foundation for all skeletal muscle in adults is formed early...
Symbiosis is the close and protracted interaction between organisms. The molecular interactions that occur during symbiosis are complex with multiple barriers that must be overcome. Many Gram-negative, host-associated bacteria use a type III secretion system to mediate associations with their eukaryotic hosts. This secretion system is a specialized apparatus for...
The purpose of this study was to assess the effectiveness of a
training program designed to assist Thai junior high school science
teachers in asking a larger number of higher cognitive level
questions, extending wait-time following a question, and decreasing
the amount of teacher talk during classroom instruction.
Sixty-two junior...
Barley (Hordeum vulgare L.) possesses a large and highly repetitive genome of 5.1 Gb that has hindered the development of a complete sequence. In 2012, the International Barley Sequencing Consortium released a resource integrating whole-genome shotgun sequences with a physical and genetic framework. However, because only 6278 bacterial artificial chromosome...
Understanding the impact of humans on the environment has long been a topic of scholarly interest and debate. As environmental problems mount, accounts of historic ecological conditions and the factors of change become increasingly useful. This study considers competing schools of interpretation about human impacts on ecological landscapes and develops...
Medium chain fatty acids (MCFAs) are important industrial feedstocks for
soaps, detergents and surfactants. Interspecific lines derived from Cuphea lanceolata
and Cup hea viscosissima are being domesticated as a temperate source of MCFAs.
These species also serve as model organisms for understanding the biosynthesis of
MCFAs in seeds. Various markers...
Development of the posterior crossvein in crossveinless-like
strains of Drosophila melanogaster can be influenced by high temperature
shocks at specific times in pupal development.
Three sensitive periods were detected in age response studies
on Ona X, Ona II, 5-hi III; crossvein restoration at 14 hours in
pupal development, a crossvein...
Investigations of 16S rRNA gene sequences hallmark modern microbiology. These sequences provide culture-independent insight into the abundance and distribution of microbiota and serve as a principle resource through which microbial community diversity is measured. Consequently, researchers rely on 16S gene sequences to test hypotheses rooted in ecology, evolution, and disease....
Tall fescue [Schedonorus arundinaceus (Schreb.) Dumort.] is an important forage and turf grass seed crop in Oregon. Use of the stem-shortening plant growth regulator (PGR) trinexapac-ethyl (TE) has gained broad acceptance by tall fescue seed producers in Oregon and elsewhere world-wide as an economical agent of seed yield enhancement through...
The purpose of this research was to determine, if there are and the
nature of, the common professional education competencies of selected
community college vocational instructors. The respondents in the study
represented four instructors from each of 40 community colleges selected
from the four western states of California, Colorado, Oregon...
The effects of oligoribonucleotides of identical or similar sequences to a
ribosomal protein binding site, specifically S8, on prokaryotic 30S ribosomal assembly
were investigated in Escherichia coli. The oligoribonucleotides were expected to bind to
the target protein S8 and block its incorporation into the 30S subunit, resulting in a nonfunctional...
Ribonucleotide reductase is a remarkable enzyme that catalyzes the rate-limiting
step in the synthesis of the 2'-deoxynucleoside triphosphates. The intent of this project
was to characterize the ribonucleotide reductase encoded by the orthopoxvirus,
vaccinia. The first objective was to study the structural and functional features of the
viral small subunit...