Index Catalog // ScholarsArchive@OSU

The detection of ilarvirus (subgroup B) by enzyme-linked immunosorbent assay

Creator:: McMorran, Jeffrey P.
Abstract:: The reliability and sensitivity of enzyme-linked immunosorbent assay (ELISA) in the detection of ilarvirus (isometric labile ringspot virus) subgroup B and prune dwarf virus (PDV) isolates in Prunus and Malus species has been well established. To use this technique in large scale virus indexing programs more information was required on...
Resource Type:: Masters Thesis
Full Text:: immunosorbent assay AN ABSTRACT OF THE THESIS OF Jeffrey P. McMorran for the degree of Master of Science in

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: the Columbia basin AN ABSTRACT OF THE THESIS OF Jeffrey P. McMorran for the degree of Doctor of

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:: Fernando, M.F. Sydney W.
Resource Type:: Dissertation
Full Text:: committee Dr. B. P. Warkentin, Dr. George Clough, Dr. D. B. Hannaway, Dr. Rick Boydston, Dr. J. P. McMorran

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Creator:: Sweeney, Katarina
Abstract:: Hypersensitive response-like (HR-like) needle reactions to infection by the white pine blister rust pathogen, Cronartium ribicola, have been reported for several species of five needle pines native to western North America. The best-studied examples are in Pinus monticola and P. lambertiana. In these species a "needle spot" phenotype has been...
Resource Type:: Masters Thesis
Full Text:: needle pines native to western North America. The best-studied examples are in Pinus monticola and P

Development of traceable metal oxide nanoparticles for examining environmental fate and transport

Creator:: Rowbotham, Brian
Abstract:: The fate and transport of engineered nanoparticles (ENPs) such as titanium dioxide (TiO₂) are of concern due to their increasing use in consumer products. Although analytical methods for detection and quantification of ENPs in environmental matrices are being developed, these methods are difficult, time consuming, and not easily validated for...
Resource Type:: Masters Thesis
Full Text:: Rowbotham, Author ACKNOWLEDGEMENTS I would first like to thank my advisor Dr. Jeff Nason for

Genome-enabled discovery and characterization of type III effector-encoding genes of plant symbiotic bacteria

Creator:: Kimbrel, Jeffrey A.
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: Effector- encoding Genes of Plant Symbiotic Bacteria. Abstract approved: Jeff H. Chang

Effects of season and interval of prescribed burns on pyrogenic carbon cycling in ponderosa pine stands in Malheur National Forest

Creator:: Matosziuk, Lauren
Abstract:: In ponderosa pine (Pinus ponderosa) forests of the western United States, prescribed fires are used to reduce fuel loads and restore historical fire regimes. The season in which prescribed burns are performed and the interval between burns can have complex consequences for the ecosystem, including soil carbon cycling through the...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Jeff A. Hatten In ponderosa pine (Pinus ponderosa) forests of the western United States

The impact of Oregon’s Coordinated Care Organizations on Prenatal Care Access and Quality : A Difference-in-Differences Analysis

Creator:: Muoto, Ifeoma O.
Abstract:: Background: Prenatal care (PNC) is an important preventive health service that can influence the health of the four million women who give birth annually in the United States, and the health their infants. Despite efforts to increase women’s access to PNC services, significant disparities in PNC utilization and maternal/child health...
Resource Type:: Dissertation
Full Text:: : _________________________ ________________________________________ Jeff Luck Background: Prenatal care (PNC

Contractile function and calpain activity in mouse skeletal muscle during hypoxia

Creator:: Hu, Hui
Abstract:: Calcium activated proteases, or calpains, are activated in cardiac muscles under conditions of ischemia/reperfusion and hypoxia. Their activity in skeletal muscle under similar conditions is poorly understood. We tested the hypothesis that hypoxia elevates calpain-mediated proteolysis in isolated glycolytic (extensor digitorum longus, EDL) and oxidative (soleus, SOL) mouse muscles studied...
Resource Type:: Masters Thesis
Full Text:: . _____________________________________________________________________ Hui Hu, Author ACKNOWLEDGEMENTS I greatly appreciate my major professor, Dr. Jeff

Analytical determination of copper speciation in Oregon highway runoff

Creator:: Sprick, Matthew S.
Abstract:: Low concentrations of dissolved copper have been shown to adversely affect the olfactory system of endangered salmonids, impairing their ability to avoid predators and likely increasing predation. It is believed that only the free ionic (Cu2+ free) and weakly complexed forms are bioavailable to organisms; these forms typically account for...
Resource Type:: Masters Thesis
Full Text:: There are many people who have had a hand in helping me finish this research. 1) Jeff Nason, his

Alternative splicing in the obligate biotrophic oomycete pathogen, Pseudoperonospora cubensis

Creator:: Cumbie, Jason S.
Abstract:: Oomycetes are some of the most devastating pathogens, causing upwards of billions of dollars of damage each year to plants. They also diminish ecological diversity and health through the destruction of trees and shrubs. The genome sequence of Pseudoperonospora cubensis, an obligate plant pathogen and causative agent of downy mildew...
Resource Type:: Dissertation
Full Text:: : __________________________________________________________ Jeff H. Chang Oomycetes are some of the most devastating pathogens, causing upwards of

Effect of intervention strategies on specific verbal feedback of volunteers and its secondary effect on qualitative motor performance

Creator:: Gately, Jeanne E.
Abstract:: The purpose of this study was twofold. First, to determine if planned interventions could increase untrained undergraduate students' use of positive and specific skill feedback while a teaching fundamental motor skill to children who are disabled. Second, to qualitatively assess the effect of specific verbal feedback on student motor performance....
Resource Type:: Masters Thesis
Full Text:: Privacy / Jeff McCubbin The purpose of this study was twofold. First, to determine if planned

Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Creator:: Gallo, Adrian Carlos
Abstract:: Forest soils contain a substantial portion of global terrestrial carbon stores. Forest management can influence the soil carbon pool and how soil organic matter functions. The long-term productivity of forests is an ongoing goal where land managers utilize biomass and timber. A site-specific understanding of intensively managed forests can ensure...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Jeff Hatten Forest

A regional computable general equilibrium model with applications for the Pacific Northwest

Creator:: Zheng, Xiaojuan
Abstract:: Many important policy problems entail linkages among multiple economic sectors, and require the use of a general equilibrium economic modeling framework. This economic approach is appropriate when the market for any one good or service is linked to numerous other goods and services, and back to fundamental inputs such as...
Resource Type:: Dissertation

Characterization of the pathogenicity and phylogeny of members of the Rhodococcus genus

Creator:: Creason, Allison L.
Abstract:: Plant pathogenic Rhodococcus species are persistent pathogens able to cause severe growth deformities on a large range of hosts. The most well studied species, R. fascians is predicted by current models to synthesize a mixture of cytokinins that act to directly perturb the hosts' hormone balances, which results in abnormal...
Resource Type:: Dissertation
Full Text:: Rhodococcus Genus. Abstract approved: ______________________________________________________ Jeff H

Disparities in Health Outcomes and Health Care Access : A Quantitative Intersectional Approach

Creator:: Alvarado, Carla S.
Abstract:: Health disparity scholars and researchers call to expand the conceptualization of health disparities research beyond the predominant and long-standing race-based analyses. The call requests the inclusion of frameworks and theories that reflect the complex, multi-level and multifactorial social processes that yield health disparities. Intersectionality is a theoretical framework that is...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ Chunhuei Chi Jeff Luck

Characterizing the Plant-Associated Symbionts, Rhodococcus and Agrobacterium

Creator:: Fuller, Skylar L.
Abstract:: Symbioses are a spectrum of interactions between organisms living in closeassociation. These intimate interactions range from mutualism, in which bothorganisms benefit, to parasitism, where one organism benefits at the expense ofthe other. Horizontal gene transfer is the acquisition of genes independent ofvertical transmission and demonstrably promotes the transition of bacteria...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________ Jeff H. Chang Symbioses are a spectrum of interactions between organisms living in close

Identification and characterization of type III effector proteins in plant-associated bacteria

Creator:: Thomas, William J.
Abstract:: Symbioses between microbes and multicellular eukaryotes are found in all biomes, and encompass a spectrum of symbiotic lifestyles that includes parasitism and disease, commensalism, and mutually beneficial interdependent host-microbe relationships. Regardless of outcome, these symbiotic lifestyles are governed by a complex molecular "courtship" between microbe and potential host. This courtship...
Resource Type:: Dissertation
Full Text:: : ________________________________________________________________________ Jeff H. Chang Symbioses between microbes and multicellular eukaryotes are found in all

Phylogeny and Evolution of Gall-Associated Plant Pathogenic Bacteria

Creator:: Davis, Edward W., II
Abstract:: Gall-associated phytopathogens have unique evolutionary histories that haveshaped both their modes of infection and genomic structures. Pathogenicity of the gall-associated plant pathogens of the Rhodococcus, Agrobacterium, and Rathayibactergenera is mediated by horizontally acquired virulence loci. The relative ease of gainand loss of the virulence loci has confounded accurate characterization of...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________ Jeff H. Chang Gall

Performance and graphics enhancement of the LOGSIM mechanized log harvesting system simulator

Creator:: Moss, J. Alexander
Abstract:: The focus of this research concentrates on enhancement of the LOGSIM mechanized log harvesting system simulator. Enhancement of software focuses on overall improvement of the user environment as well as improvement of the performance and capabilities of the simulation package. An enhanced version of the front-end interface program is developed...
Resource Type:: Masters Thesis

Multi-scale relationships between aspen and birds in the northern Yellowstone ecosystem

Creator:: Hollenbeck, Jeff P., 1967-
Abstract:: I conducted a multi-scale evaluation of aspen – bird relationships in the northern ungulate winter range of the northern Yellowstone ecosystem during June 2001-03. Questions addressed were: (1) Does bird diversity increase with conifer presence in aspen stands? (2) Given known habitat selection cues, are migrating birds passively intercepted by...
Resource Type:: Dissertation
Full Text:: Northern Yellowstone Ecosystem. by Jeff P. Hollenbeck A DISSERTATION submitted to

The Association Between Patient Activation and Cost, Utilization, and Outcomes Among Patients Undergoing Elective, Primary Total Knee Arthroplasty

Creator:: Owen, Erin Callahan
Abstract:: Background. Total knee arthroplasty, or replacement, is a common, generally successful, and expensive procedure. Tools to predict outcomes following orthopedic procedures are abundant, yet no commonly used assessment accounts for an individual’s propensity to engage in adaptive health behavior. The 13-item Patient Activation Measure (PAM) questionnaire is a tool that...
Resource Type:: Dissertation
Full Text:: Jeff Luck Viktor E. Bovbjerg Background. Total knee arthroplasty, or replacement, is a

Phosphorus availability in biosolids-amended soils

Creator:: Choate, Jeff
Abstract:: Quantifying labile phosphorus (P) pools in biosolids is needed to manage biosolids for both agronomic and environmental purposes. Phosphorus indices originated in an effort to protect surface water quality from-non-point-agricultural P inputs. The objectives of this research were to: (1) evaluate soil test components of the western Oregon P index...
Resource Type:: Masters Thesis
Full Text:: Biosolids-Amended Soils. Dan M. Sullivan Quantifying labile phosphorus (P) pools in biosolids is needed to

Evaluation of outcomes following thermal, open and arthroscopic glenohumeral capsulorrhaphy for recurrent anterior instability

Creator:: Sullivan, Jeff A.
Abstract:: PURPOSE: To compare glenohumeral joint position sense (JPS), concentric internal (IR) and external rotation (ER) strength, functional ability, and level of satisfaction in patients who underwent three types of glenohumeral capsulorrhaphy with age-matched controls. RESEARCH DESIGN: Four 4x2 and two 4x3 ANOVAs were used to identify differences in JPS and...
Resource Type:: Dissertation
Full Text:: IflI1WD) Ji[S)II Jeff A. Sullivan for the degree of Doctor of

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:: Feaga, Jeff
Abstract:: The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...
Resource Type:: Masters Thesis

Present-day and future contributions of glacier melt to the Upper Middle Fork Hood River : implications for water management

Creator:: Phillippe, Jeff
Abstract:: Glaciers are effective reservoirs because they moderate variations in runoff and supply reliable flow during drought periods. Thus, there needs to be a clear understanding of the influence of glacier runoff at both the basin and catchment scale. The objectives of this study were to quantify the late summer contributions...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeff Phillippe for the degree of Master of

Functional relationships among vegetation, nocturnal insects, and bats in riparian areas of the Oregon Coast Range

Creator:: Ober, Holly K.
Abstract:: Vegetation provides food for many insects, and many insects serve as food for bats. We investigated the linkages among these three trophic levels in riparian areas throughout the Oregon Coast Range by examining the influence of vegetation cover, composition, and structure on the activity of nocturnal insects and bats, the...
Resource Type:: Dissertation
Full Text:: :______________________________________________________ John P. Hayes Vegetation provides food for many insects, and many insects serve as food

Ecological Forestry : A Critical Analysis

Creator:: Batavia, Chelsea
Abstract:: Although science is widely accepted as a fundamental source of information underlying decisions about forest management and conservation, considerably less attention has been paid to the inevitable role that normative values and beliefs play in such decisions. This thesis highlights the normative dimensions of "ecological forestry," a strategy of forest...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Michael P. Nelson

Optimizing the primary forest products supply chain : a multi-objective heuristic approach

Creator:: Hamann, Jeff D.
Abstract:: This thesis is a collection of four submitted manuscripts that present methods to assist forest ecosystem service managers wanting to develop operational sampling, monitoring, and production plans for a set of specific quantifiable ecosystem services, which are formulated as a series of general multi-objective optimization problems. The problems are solved...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeff D. Hamann for the degree

Accuracy of momentary time sampling : a comparison of varying interval lengths using SOFIT

Creator:: McNamee, Jeff B.
Abstract:: The U.S. Department of Health and Human Services has made the promotion of regular physical activity a national health objective, and experts believe that physical education can play a significant role in the promotion of physical activity. Feasible measurement tools to assess physical activity behavior, by physical educators, are lacking....
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeff McNamee for the degree

Fiber optic sensors and spectrometry for the detection of volatile gem-polyhalogenated hydrocarbons

Creator:: Louch, Jeff
Abstract:: A fiber optic fluorometer utilizing a double-fiber optic probe was constructed. The absolute fluorescence signal and effective collection efficiency are approximately one fifth those of typical cuvette fluorometers and agree with those predicted by theory. A quinine sulfate calibration curve shows linearity from a detection limit of 10 pg/mL to...
Resource Type:: Dissertation
Full Text:: of volatile gem-polyhalogenated hydrocarbons AN ABSTRACT OF THE THESIS OF Jeff Louch for the

An efficient frequency controlled PFM for DC-DC converters

Creator:: Pai, Jeff
Abstract:: As more features are being integrated into mobile platforms, the demand for long battery life during standby mode has been increasing. Light load efficiency becomes one of essential features in today's DC-DC converter. The most effective method to improve light load efficiency is to operate the DC-DC converter under pulse-frequency-modulation...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeff Pai for the degree of Master of Science in Electrical and

A novel apparatus for estimating pesticide volatility from spray droplets

Creator:: Poel, Jeff D.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeff D. Poel for the degree of

Estimating a juniper biomass supply from private rangelands : the impact of distance and biotic factors on costs

Creator:: McCaulou, Jeff C.
Abstract:: Central Oregon has attracted attention as a potential location for a biomass industry based on a locally fixed source of western juniper (Juniperus occidentalis Hook) feedstock. This study identifies a supply of juniper from private lands to determine how much of the available juniper is economically supplied at alternative prices...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeff C. McCaulou for the degree of Master of Science in Applied

Yield component and growth analysis of strawberries

Creator:: Olsen, Jeff L.
Abstract:: Two studies were initiated in June of 1981 in order to gain greater understanding of the growth and fruiting habits of field grown strawberries in Oregon's Willamette Valley. Yield component analysis of 'Benton', Oregon's leading cultivar and an advanced breeding selection, 'OR-US 4356' was conducted during the first (1981) and...
Resource Type:: Masters Thesis
Full Text:: (Coombe, 1960; Evans and Hughes, 1962; Whitehead and 15 Myerscough, 1962; Evans 1972, p. 268) and leaf

A comparison of two types of zero-crossing FM demodulators for wireless receivers

Creator:: McNeal, Jeff D.
Abstract:: A comparison of two novel demodulators. The first is a basic zero crossing demodulator, as introduced by Beards. The second is an approach proposed by Hovin. The two demodulators are compared to each other and to the conventional method of demodulation.
Resource Type:: Masters Thesis
Full Text:: for wireless receivers AN ABSTRACT OF THE THESIS OF Jeff D. McNeal for the degree of Masters of

Hard spheres within classical density functional theory and Min proteins in Escherichia coli

Creator:: Schulte, Jeff B.
Abstract:: This thesis reports on computational research in two different areas. I first discuss the Min-protein system found within Escherichia coli. Following this I discuss an extended investigation into improving free energy functionals that are used within Classical Density Functional Theory in order to model water. Chapter 2 examines the dynamics...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeff B. Schulte for the

Characteristics of NADPH-cytochrome P-450 reductase in the house fly (Musca domestica, L.) and the blow fly (Phormia regina, Meigen)

Creator:: Vincent, Daniel R.
Abstract:: NADPH-cytochrome P-450 reductase, an important enzyme in the cytochrome P-450-dependent microsomal monooxygenase system, was purified from insecticide-resistant (R) and -susceptible (S) house flies (Musca domestica, L.) and from the black blow fly (Phormia regina, Weigen). Proteolytic degradation to a P-450 - inactive form of the reductase was reduced during the...
Resource Type:: Dissertation
Full Text:: Characteristics of NADPH-cytochrome P-450 reductase in

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

Creator:: del Nero, Zachary Augustus
Abstract:: Soils of 49 agricultural and 2 "native condition" sites in the Lower Umatilla Basin, Oregon were sampled for nitrate-nitrogen, ammonium-nitrogen, chloride, and pH beginning in Fall of 1992. Several sites were sampled in Spring and Fall 1993 in order to indicate movement or loss of residual soil nitrogen over time....
Resource Type:: Masters Thesis
Full Text:: acquired and provided, at a nominal cost, the soil sampling equipment. Jeff McMorran, OSU PhD candidate

The proteomic and transcriptomic responses to iron, sulfur, and nitrogen limitation in the abundant marine bacterium Candidatus Pelagibacter ubique

Creator:: Smith, Daniel P.
Abstract:: Batch cultures of Candidatus Pelagibacter ubique were grown under iron-, organosulfur-, and nitrogen-limiting conditions to understand how this ubiquitous marine bacterium responds to and interacts with environments where growth is limited by the availability of these nutrients. Global gene expression was monitored using microarrays and quantitative mass spectrometry to observe...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Daniel P. Smith for the degree of Doctor of Philosophy in Molecular and Cellular

Recovery of High-graded Nothofagus Forests: Building Resilience Through Theory and Practice

Creator:: Soto, Daniel P.
Abstract:: The increasing human demands on natural resources, in combination with uncertainties about ecosystem dynamics due to global change, has led the scientific community to conclude that new approaches in understanding of ecological systems are needed to tackle environmental issues in an efficient manner. One development that has received more attention...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel P. Soto for the degree

Magnetic properties of an analog compound for cytochrome P-450

Creator:: McCann, Steven Wayne
Abstract:: This thesis describes a Mossbauer effect and electron paramagnetic resonance study of iron (III) tetraphenylporphyrinatobenzenethiolate benzene thiol, an analog compound for bacterial cytochrome P-450. The compound is unusual in that it provides a model for the two ferric reaction states of cytochrome P-450. The iron in the model compound exhibits...
Resource Type:: Dissertation
Full Text:: P-450 AN ABSTRACT OF THE THESIS OF STEVEN WAYNE MCCANN for the degree of DOCTOR OF PHILOSOPHY in

Forest Soils and Topography : Decoding the Influence of Physical Site Characteristics on Soil Water and Forest Productivity in Oregon's Coast Ranges

Creator:: Rodman, Henry
Abstract:: Forest soils and topography have long been known to influence forest productivity in complex terrain such as Oregon’s Coast Ranges. Incorporating physical site characteristics into predictions of forest growth and yield, however, has been problematic because of the high spatial variability of soil properties and the challenges associated with representing...
Resource Type:: Masters Thesis
Full Text:: in the forest biometrics community. Jeff Hatten has been a great influence, helping me dig through

Quality of learning in primary care : a social systems inquiry

Creator:: Kailin, David C.
Abstract:: What constitutes quality of learning in primary care? A social systems view of that central question regards the relationships between dimensions of learning, purposes of primary care, and quality of practice. The question of learning quality was approached in three ways. First, perceptions of learning quality were elicited through recorded...
Resource Type:: Dissertation
Full Text:: out as golden moments in my life There is nothing quite as satisfying as thinking together. Dr. Jeff

Meander scars : reflections on healing a river

Creator:: Metzger, Abby P.
Abstract:: As Europeans settled the Willamette Valley in the 1800s, they began to simplify Oregon's largest river contained wholly within state boarders—the Willamette. The river lost miles of channels from dikes, dams, and development. Some channels vanished under concrete. Others became meander scars, or shallow, dry depression in the land where...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Abby P. Metzger for the degree of Master of Science in Environmental Science presented on

Fuel Treatments of Ponderosa Pine (Pinus ponderosa) in the Blue Mountains of Eastern Oregon : A Mycorrhiza Perspective

Creator:: Hart, Benjamin T. N.
Abstract:: Over the course of the last century, a successful history of fire suppression has contributed to unsuccessful present day control over wildfire. In the absence of fire and the janitorial and ecological services it provides, drier inland forests are shifting in species composition and exceeding densities that cannot survive and...
Resource Type:: Masters Thesis
Full Text:: . Additionally, litter depth, pH, and soil carbon (C), nitrogen (N), and Bray phosphorus (P) were measured from

Seasonal abundance, distribution, and migration of the clover aphid, Nearctaphis bakeri (Cowen) in red clover

Creator:: Dreves, Amy J.
Abstract:: Four sampling techniques were evaluated to estimate clover aphid, Nearctaphis bakeri (Cowen), abundance in red clover fields in the Willamette Valley. The Berlese funnel method detected one to four times more aphids than other sampling techniques. Visual assessment often underestimated the high aphid densities during the flowering and seeding of...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS I wish to acknowledge and thank my committee members, Dr. Jack DeAngelis, Dr. Jeff Miller, Dr

Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

Creator:: Morris, Mark A.
Abstract:: Sampling techniques were evaluated to quantify immature mint flea beetle (MFB), Longitrsus waterhousei Kutschera (Coleoptera: Chrysomelidae), on peppermint (Mentha piperita L.), in central Oregon. During the study period, 1985-1988, soil samples of 350 cm³ were effective for collecting immature MFB. Sifting soil samples through screens was effective for estimating post-feeding...
Resource Type:: Masters Thesis
Full Text:: Masters of Science in Entomology presented on March 7, 1989. Title: Sampling Methods, in Central Oregon P

The Fitness Costs and Regulatory Strategies of Cooperative Siderophore Production in Pseudomonas

Creator:: Sexton, David
Abstract:: Cooperative behaviors in bacteria are increasingly appreciated for their relevance to microbial ecology and utility as model systems for social evolution. One example is the secretion of siderophores, a structurally diverse group of compounds that chelate extracellular iron. Siderophore production is considered cooperative because the benefits can be shared with...
Resource Type:: Dissertation
Full Text:: this strategy is beneficial in co-culture with a competing PVD producer, P. aeruginosa PAO1. Although

An investment valuation and risk assessment of high-density sweet cherry orchards

Creator:: West, Tyler T.
Abstract:: A supply and demand model for the sweet cherry industry in Wasco County, Oregon and two investment valuation models are used to value and assess the risk of investments in high-density sweet cherry orchard establishment and production from the producer perspective. The supply and demand estimation finds the cherry price...
Resource Type:: Masters Thesis
Full Text:: would like to acknowledge my thesis committee, Clark F. Seavert, Dr. James Sterns, and Dr. Jeff Reimer

On his own terms : William James, identity, and the development of American Psychology

Creator:: Stoller, Kevin R.
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: history and shaped my scholarly growth. Jeff Sklansky and Paul Farber, my other committee members, have

An efficient optimizing model for determining thinning regime and rotation age using the stand projection system growth simulator

Creator:: Yoshimoto, Atsushi
Abstract:: The PATH algorithm, which is the efficient dynamic programming algorithm developed by Paredes and Brodie (1987) was interpreted from a different point of view. This modification of the PATH algorithm by the calculus of variations vastly diminished the calculation task and memory required to store optimal stands at each stage....
Resource Type:: Masters Thesis
Full Text:: Dr. Jeff Arthur for serving on his committee, and Mr. Gonzalo Paredes for help and advice. Finally

The effects of intraspecific plant competition and insect herbivory of ragwort (Senecio jacobaea) populations

Creator:: Fitzpatrick, Greg S.
Abstract:: I conducted field studies to determine the effect of insect herbivory and intraspecific plant competition on ragwort Senecio jacobaea. The objectives were to determine the patterns and causes in the distribution of the ragwort flea beetle Longitarsus jacobaeae foraging among varying densities of ragwort, to measure the behavioral and numerical...
Resource Type:: Masters Thesis
Full Text:: members of my committee, Jeff Miller and Chris Mundt, for their support and helpful suggestions

The effect of silver ions and nanoparticles on biofilms and planktonic cultures of Nitrosomonas europaea

Creator:: Giska, Jonathan R.
Abstract:: Due to the effective antimicrobial properties of silver nanoparticles they represent a significant proportion of all consumer-‐related nanomaterials. The introduction of silver nanoparticles from these products into domestic and industrial wastewater streams poses potential complications for biological treatment systems. A critical component of biological treatment that is extremely sensitive to...
Resource Type:: Masters Thesis

Exploring Colloid Transport in Unsaturated Porous Media Using X-Ray Microtomography

Creator:: Brueck, Chris L.
Abstract:: Understanding the mechanisms controlling colloid transport and deposition in the vadose zone is an important step in protecting our water resources. Colloid transport in unsaturated porous media was studied using X-Ray Microtomography (XMT), which is a non-destructive imaging technique that provides three-dimensional images at a resolution on the order of...
Resource Type:: Masters Thesis
Full Text:: the time spent working with the bio-water group. I thank my committee member, Jeff Nason, for

Oviposition behavior and thermal constants for egg development of the filbertworm Cydia latiferreana (Lepidoptera: Tortricidae)

Creator:: Kelly, Alice M.
Abstract:: Cydia latiferreana Wlshm. is recognized as the key insect pest of cultivated filbert (hazelnut) in Oregon. The purpose of this study was to obtain information on mating and oviposition behavior of the adult insect, to calculate the lower temperature threshold and degree-days required for egg development, and to develop an...
Resource Type:: Masters Thesis
Full Text:: . In addition, my committee members, Drs. Maxine Thompson and Jeff Miller, supplied helpful advice

Hydraulic characterization and modeling of the Talking Water Garden wetland for evaluation of nitrogen removal

Creator:: Huang, Tao
Abstract:: The purpose of this research is to hydraulically characterize an engineered wetland in Albany, Oregon. The wetland receives treated wastewater from both Albany Millersburg Water Reclamation Facility (AMWRF) and ATI Wah Chang. AMWRF's water is municipal waste water. ATI Wah Chang's water comes from its nearby metal processing plant. The...
Resource Type:: Masters Thesis
Full Text:: equipment. Jeff Hart was the other graduate student who worked on this project. He provided assistance

Multiscale habitat electivity and movement patterns by adult spring chinook salmon in seven river basins of northeast Oregon

Creator:: Price, David M.
Abstract:: I examined habitat electivity and movement patterns of adult spring chinook salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The objective was to compare habitat use and availability among streams, channel units,...
Resource Type:: Masters Thesis
Full Text:: e d a c t e d f o r p r i v a c y Redacted for privacy Redacted for privacy ACKNOWLEDGEMENT

A history of intercollegiate wrestling at Oregon State University (1909-1974)

Creator:: Nelson, Richard C. (Richard Cornelius), 1932-
Abstract:: Intercollegiate wrestling at Oregon State University had its inception on March 20, 1909. On that day, the Oregon Agricultural College wrestling team wrestled in a home meet against the team from Washington State College. The Beavers, under the tutelage of their first coach Eddie O'Connell, won their first intercollegiate meet,...
Resource Type:: Masters Thesis
Full Text:: ) Redacted for Privacy Abstract approved: /John P. O'hea Intercollegiate wrestling at Oregon State

Reduced intraabdominal fat after lower-dose treadmill training in growing female rats

Creator:: David, Lynne Catherine
Abstract:: The presence of an increased accumulation of intraabdominal fat (IAF) has been linked to dyslipidemia, hyperinsulinemia, and hyperglycemia, which precede the development of type 2 diabetes and coronary artery disease (CAD). It has been shown that IAF begins depostition during childhood. Human studies suggest that regular endurance exercise, that does...
Resource Type:: Masters Thesis
Full Text:: Intraabdominal Fat After Lower-Dose Treadmill Training in Growing Female Rats. Abstract approved: Daniel P

Lichen response to the environment and forest structure in the western Cascades of Oregon

Creator:: Martin, Erin P.
Abstract:: Lichens are an important part of the biota in western Oregon forests, where they perform valuable ecological roles and contribute significantly to biodiversity. Lichens in western Oregon are threatened by a number of factors including air pollution and land use practices. If we wish to maintain the persistence of lichens...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Erin P. Martin for the

The identification and division of Steve Jobs

Creator:: Anderson, Scott M. (Scott Matthew)
Abstract:: On April 1, 1976, Steve Jobs and Steve Wozniak entered into a partnership agreement to found Apple Computer. In the decade that followed, Apple experienced remarkable growth and success, as Jobs catapulted Apple to the Fortune 500 list of top‐flight companies faster than any other company in history. Under direction...
Resource Type:: Masters Thesis
Full Text::  Identification and Division of Steve Jobs      Abstract approved:       Mark P. Moore          On April 1, 1976

Effects of cyclopropenoid fatty acids on liver plasma membranes of rainbow trout (Salmo gairdneri)

Creator:: Marino, Donald R. (Donald Robert)
Abstract:: Cyclopropenoid fatty acids (CPFA), which are a group of fatty acids produced by plants of the order Malvales, are known to induce adverse physiological effects when administered to a variety of animal species. A structurally strained cyclopropene ring is present in all CPFA and is believed responsible for the toxic...
Resource Type:: Masters Thesis
Full Text:: : Daniel P. Selivondhidc cyclopropenoid fatty acids (CPFA), which are a group of fatty acids produced

Strength, power, flexibility, and bone density in adult men

Creator:: Adams, Kent
Resource Type:: Dissertation
Full Text:: : /1 John P. O'Shea The purpose of this stud'y was to investigate strength, power, flexibility, and

Autobiography as image repair : an analysis of Sarah Palin's restoration strategies

Creator:: Canja, Elizabeth H.
Abstract:: The purpose of this study is to examine how autobiography functions as image restoration for a political candidate through the analysis of Sarah Palin's memoir, Going Rogue: An American Life. In particular, the study will identify and evaluate specific restoration strategies implemented by Palin in order to repair her image...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Mark P. Moore The purpose of this study is to examine how autobiography functions as image

Impact of malolactic fermentation on red wine color and color stability

Creator:: Burns, Tresider R.
Abstract:: Malolactic fermentation (MLF) is an important step in the production of wines and is commonly performed in red or cool climate wines to reduce acidity. In this study the impact of MLF on red wine color and the ability of Oenococcus oeni to degrade compounds important to the development of...
Resource Type:: Masters Thesis
Full Text:: approved:______________________________________________________ James P. Osborne Malolactic

Simulated response of ecosystem processes to climate change in northern California and western Nevada

Creator:: McGlinchy, Maureen C.
Abstract:: In order to investigate potential climate impacts on landscape-scale ecosystem processes, I implemented a dynamic general vegetation model (DGVM) over a large domain in northern California and western Nevada on a rectangular grid of ca. 800-meter spatial resolution. I used 100 years of observed, monthly climate and nine future climate...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Ronald P. Neilson Beverly E. Law In order to investigate potential

Direct atom transfer vs. ring expansion in reaction of rhenium oxo complexes with cyclooctene epoxides and episulfides

Creator:: Khownium, Kriangsak
Abstract:: The rhenium (V) complex Tp'ReO₂ (Tp' = hydrido-tris-(3,5- dimethylpyrazolyl)borate), generated in situ from PPh₃ reduction of Tp'Re0₃, reacts with small ring heterocycles such as epoxides and episulf ides. The strained trans-cyclooctene ring provides an unusual thermodynamic bias against direct atom transfer, but trans-cyclooctene oxide still produces substantial amounts of trans-cyclooctene....
Resource Type:: Masters Thesis
Full Text:: support on GC-MS work, and also Jeff Morre for his support on MS work. I am indebted to Dr. Eric Brown

Mechanistic studies of metal oxide mediated oxidation via kinetic isotope analysis of pentamethylcyclopentadienyl rhenium diolate cycloreversion

Creator:: Phan, Thuy N.
Resource Type:: Masters Thesis
Full Text:: Analysis of Pentamethylcyclopentadienyl Rhenium Diolate Cyclo reve rs ion Abstract approved: Kevin P

Automatic Detection of Possessions and Shots from Raw Basketball Videos

Creator:: Terhuja, Vikedo
Abstract:: Sports analytics is rapidly evolving today through the use of computer vision systems that automatically extract huge amount of information inherently present in multimedia data without much human assistance. This information can facilitate a better understanding of patterns and strategies in various sports. However, for non-professional teams, due to expense...
Resource Type:: Masters Thesis
Full Text:: Raw Basketball Videos. Abstract approved: Alan P. Fern Sports analytics is rapidly evolving today

Physical activity, hormone replacement therapy, and insulin resistant coronary artery disease risk factors in postmenopausal women

Creator:: Manns, Patricia J.
Abstract:: Low physical activity levels and high serum C-reactive protein (CRP) levels are risk factors for coronary artery disease (CAD) in both men and women. However, postmenopausal women who take hormone replacement therapy (HRT) may have increased risk of CAD because of HRT-related increases in serum CRP. There are two manuscripts...
Resource Type:: Dissertation
Full Text:: Postmenopausal Women. Abstract Approved: Daniel P. Williams Low physical activity levels and high serum C

Habitat selection by American martens (Martes americana) in coastal northwestern California

Creator:: Slauson, Keith M.
Abstract:: The Humboldt marten, Martes americana humboldtensis, has undergone a dramatic decline throughout its historical distribution in coastal Northwestern California. There is currently only one known population occupying an area occurring in <5% of the historical distribution of the subspecies. Conservation and management efforts to benefit this population are hampered by...
Resource Type:: Masters Thesis
Full Text:: Signature redacted for privacy. ( "=I ' I 1 (hn P. Hayes The Humboldt marten, Martes americana

Model assessment of the effects of land use change on hydrologic response

Creator:: Vache, Kellie B.
Abstract:: The effect of landuse change on the hydrologic, biogeochemical and ecological response of watersheds is a concern throughout the world. To help characterize the potential magnitude of such changes, and of the potential to remediate or avoid undesirable features, studies focused on the cumulative watershed effects of site level change...
Resource Type:: Dissertation
Full Text:: Assessment of the Effects of Land Use Change on Hydrologic Response. Abstract approved: John P. Bolte The

Microbial community structure as influenced by season and stand age in a Douglas-fir (Pseudotsuga menziesii) ecosystem

Creator:: Kucera, Jennifer Moore
Abstract:: Forest harvest can have significant impacts on forest ecosystems that may influence the capacity of soils to sequester carbon (C). The microbial community controls decomposition, which is a critical process in partitioning litter- and root-C between CO₂ and storage in semi-permanent soil-C pools. The objectives of this study were to...
Resource Type:: Dissertation
Full Text:: husband, Jeff. Your patience, love, and encouragement help get me through the bumps and make the good

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: Prediction of Patterns in Lichen Communities over the Western Oregon Landscape. Abstract Approved: Bruce P

The effects of community college laboratory instruction and video-taped presentations involving the skeletal system on cognitive achievement and retention

Creator:: Kennedy, Gary Gower
Abstract:: The purpose of this study was to determine if a significant difference in cognitive achievement and retention occurred when skeletal system anatomy and terminology were presented utilizing either videotaped presentations or a traditional laboratory procedure. Fifty-three first semester nursing students enrolled in biology (Bio. 160 anatomy and physiology) at Lethbridge...
Resource Type:: Dissertation
Full Text:: approved Redacted for privacy Dr. Thomas P. Evans The purpose of this study was to determine if a

Design, assessment, and future implications of the Multiple Enzyme Analyzer (MEA), a tool for in-situ monitoring of marine microbial activity

Creator:: Jaeger, Stephanie A.
Abstract:: The microbial loop plays a crucial role in remineralization of organic matter and fuels recycled production in the aquatic environment. The capability of microbes to utilize particular compounds can be examined through their ectoenzyme (found outside the cell) activities using fluorogenic substrate analogs. These catalysts hydrolyze polymers otherwise too large...
Resource Type:: Masters Thesis
Full Text:: , I am grateful for the friendships of Erica McQuay, Jeff Krause, Nell Orscheln, and Polly Endreny

An Evaluation of the Complex Age Progression along the Cook-Austral Islands Using High-resolution ⁴⁰Ar/³⁹Ar Incremental Heating Ages

Creator:: Rose, Joanna
Abstract:: The Cook-Austral island chain has been the center of debate for many years. Contrary to the classical hotspot hypothesis, this volcanic island chain does not exhibit a linear age progression with a single node of active volcanism, but instead shows evidence of young volcanism at several points along the chain....
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Anthony A. P. Koppers The Cook-Austral island chain has been the center of debate for

Impact of lees content, nitrogen, and elemental sulfur on volatile sulfur compound formation in Vitis vinifera L. cv. 'Pinot noir' wine

Creator:: Kraft, Daniel N.
Abstract:: One of the most common problems in wine production is the formation of hydrogen sulfide (H₂S) and other volatile sulfur compounds (VSCs), which can mask positive aromas at low concentrations and result in unpleasant aromas such as rotten egg, cabbage, garlic, and rubber at higher concentrations. Despite the large body...
Resource Type:: Masters Thesis
Full Text:: :______________________________________________________ James P. Osborne One of the most common problems in wine production is the formation

Effect of in-servicing teachers on student achievement in integrated pest management

Creator:: Doerner, Robert W.
Abstract:: The primary purpose of this study was to determine if inservicing Agriculture Science and Technology (AST) teachers over a new curriculum, resulted in increased student achievement. Specific objectives were to: 1) determine the subject areas (lessons) for a curriculum for teaching Integrated Pest Management (IPM); 2) develop a curriculum for...
Resource Type:: Masters Thesis
Full Text:: Inservicing Teachers on Student Achievement in Integrated Pest Mana.ement Abstract approved Herschel P

Presence, relative abundance, and resource selection of bats in managed forest landscapes in western Oregon

Creator:: Arnett, Edward B.
Abstract:: I studied presence, relative abundance, and resource selection of bats in managed Douglas-fir (Pseudotsuga menziesii) forests in western Oregon from May through September, 1999–2001. Species richness was not related to elevation, density of snags, or length of edge or perennial streams in sampled landscapes. I captured bats more frequently in...
Resource Type:: Dissertation
Full Text:: Oregon. Abstract approved:_______________________________________________ John P. Hayes

The analysis and prediction of DNA structure

Creator:: Basham, Beth E.
Abstract:: As genome sequencing projects begin to come to completion, the challenge becomes one of determining how to understand the information contained within the DNA. DNA is a polymorphic macromolecule; the A- B- and Z-DNA conformations have been observed by a variety of physical techniques. The magnitude of the energetic differences...
Resource Type:: Dissertation
Full Text:: presented on March 11, 1998. Title: The Analysis and Prediction of DNA Structure. Abstract approved. P

Small RNA pathways in plants

Creator:: Montgomery, Taiowa A.
Abstract:: miRNA-guided cleavage initiates entry of primary transcripts into the trans-acting siRNA (tasiRNA) biogenesis pathway involving RNA-DEPENDENT RNA POLYMERASE6 (RDR6), DICER-LIKE 4 (DCL4), and SUPPRESSOR OF GENE SILENCING3 (SGS3). Arabidopsis thaliana TAS1 and TAS2 families yield tasiRNA that form through miR173- guided initiation cleavage on the 5’ side of the siRNA-generating...
Resource Type:: Dissertation
Full Text:: phenotype to a level that was statistically indistinguishable from that in rdr6-15 plants (p-value = 0.23

Using Culture-independent Genomics as a Means for Understanding Chlamydial Biology

Creator:: Putman, Timothy E.
Abstract:: The chlamydiae are a family of obligate intracellular bacteria that have a unique bi-phasic developmental cycle, unique cellular properties, and a unique set of challenges to studying its biology. While genetic manipulation is becoming routine in Chlamydia, there are significant challenges to working with this intracellular parasite. The body of...
Resource Type:: Dissertation
Full Text:: Illumina based sequencing. All the members of my committee: Dr.s Jeff

Phytosanitation of Douglas-fir (Pseudotsuga menziesii) logs to mitigate the risk of artificially disseminating Phytophthora ramorum within the global trade of timber

Creator:: Hulbert, Joseph M.
Abstract:: Phytophthora ramorum is a plant pathogen that was accidentally introduced to the United States. This invasive microorganism has killed over a million trees in California and Oregon, and continues to spread to new areas. Diseased areas have been nationally quarantined to prevent further spread and more than ninety countries include...
Resource Type:: Masters Thesis
Full Text:: examined the potential for P. ramorum to colonize Douglas-fir logs and the ability of disodium octaborate

Phylogenetic Identification of Pathogenic and Endophytic Fungal Populations in West Coast Douglas-fir (Pseudotsuga menziesii) Foliage

Creator:: Daniels, Hazel A.
Abstract:: Douglas-fir provides social, economic, and ecological benefits in the Pacific Northwest (PNW). In addition to timber, forests support abundant plant and animal biodiversity and provide socioeconomic viability for many rural communities. Products derived from Douglas-fir account for approximately 17% of the U.S. lumber output with an estimated value of $1.9...
Resource Type:: Masters Thesis
Full Text:: inconsistent with predicted effects of P. gaeumannii, and targeted chemical control has had mixed results

Douglas-fir (Psuedotsuga menziesii) biomass and nutrient removal under varying harvest scenarios involving co-production of timber and feedstock for liquid biofuels

Creator:: Coons, Kristin L.
Abstract:: In this study an improved model of biomass and nutrient estimation of coastal Douglas-fir (Psuedotsuga menziesii) in the Pacific Northwest has been developed across a wide range of stand management regimes. This study quantifies and defines the type and intensity of biomass harvest and associated removal for actively managed stands...
Resource Type:: Masters Thesis
Full Text:: contained no more than 2.2% (average of 0.4%) of the total pool (soil + aboveground biomass) of N, P, Ca

The microtubule system and the canalicular mdr2 P-glycoprotein play a role in the intracellular transport and biliary secretion of α-Tocopherol and phosphatidylcholine in rats and mice

Creator:: Mustacich, Debbie J.
Resource Type:: Dissertation
Full Text:: Microtubule System and the Canalicular mdr2 P-glycoprotein Play a Role in the Intracellular Transport and

The determination of selected polychlorinated dibenzo-p-dioxins and dibenzofurans in environmental samples from sites associated with the use of chlorophenolic wood preservatives

Creator:: Hackett, Murray
Abstract:: Polychlorinated dibenzo-p-dioxins (PCDD's) and dibenzofurans (PCDF's) are environmental pollutants associated with the production and use of a number of industrial chemicals. In addition, PCDD's and PCDF's are produced during low temperature combustion of wastes containing polyvinylchloride (PVC), chlorophenols, and a number of other chemical precursors. A significant source of environmental...
Resource Type:: Masters Thesis
Full Text:: The determination of selected polychlorinated dibenzo-p

Simulating vegetation shifts and carbon cycling in Yosemite National Park

Creator:: Conklin, David R.
Abstract:: The vegetation in Yosemite National Park changed during the 20th century and may change in the 21st century in response to climate change. Vegetation surveys made during the 1930s and the 1990s provide benchmark records separated by 60 years. This study uses the MC1 dynamic global vegetation model to forecast...
Resource Type:: Dissertation
Full Text:: . If I knew which these were, I would not have written them...” (Gomberg 2007, p. vii). That line

The experiences of middle-level Chinese female adult immigrants working at west coast community and technical colleges

Creator:: Zhou, Lin
Abstract:: Community and technical colleges in the United States are experiencing an expansion of racial and ethnic diversity in students, faculty, and administrators. From 1996 to 2006, the number of Asian female college students increased 55.3%, from 13,184 to 20,477. The number of Asian male students increased 48.9%, from 9,731 to...
Resource Type:: Dissertation
Full Text:: boundaries between phenomenon and context are not clearly evident” (Yin, 2009, p.18). This research method

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Creator:: Floyd, William C.
Abstract:: The Calapooia River, a major tributary of the Willamette River in western Oregon, is a watershed typical of many found in the Willamette Basin. Public and private forested lands occur in the steep Upper Zone of the watershed, mixed forest and agriculture lands are found in the Middle Zone, and...
Resource Type:: Masters Thesis
Full Text:: (p- value < 0.05) DN concentrations than the predominantly forested sub-basins. Winter

Distribution of time of 120 California high school girls

Creator:: Gehlken, Edna P.
Resource Type:: Masters Thesis
Full Text:: DISTRIBUTION OF TIME OF 120 CALIFORNIA HIGH SCHOOL GIRLS by EDNA P. GEHLIN A THESIS submitted to the

Genome-enabled investigation of the minimal growth requirements andphosphate metabolism for Pelagibacter marine bacteria

Creator:: Carini, Paul J.
Abstract:: Members of the SAR11 clade of heterotrophic α-proteobacteria are ubiquitous and abundant in the world's oceans where they are thought to play a pivotal role in the global carbon cycle. The first SAR11 bacterium cultivated in vitro, 'Candidatus Pelagibacter ubique' HTCC1062 (Ca. P. ubique), was isolated by dilution into sterile...
Resource Type:: Dissertation
Full Text:: bacterium cultivated in vitro, ‘Candidatus Pelagibacter ubique’ HTCC1062 (Ca. P. ubique), was isolated by

New tools and approaches to uncertainty estimation in complex ecological models

Creator:: Brugnach, Marcela
Abstract:: This dissertation investigates the problem of uncertainty in complex ecological models. The term "complex" is used to convey both the common and scientific meanings. Increasingly, ecological models have become complex because they are more complicated; ecological models are generally multi-variate and multi-leveled in structure. Many ecological models are complex because...
Resource Type:: Dissertation
Full Text:: recent participation of Steve Radosevich and Marshal English. I also would like to thank: Ronald P

Effects of intercropping beans with maize on angular leaf spot and rust of beans

Creator:: Boudreau, Mark Alan, 1958-
Abstract:: Experiments were performed to determine the nature of maize influence on bean disease in additive-type intercrops. Overall effects of intercrops on angular leaf spot (caused by Phaeoisariopsis griseola) in Kenya indicated >23% reductions (P<0.05) in area under the disease progress curve (AUDPC) in two of three season-site combinations. Fertilization tended...
Resource Type:: Dissertation
Full Text:: Phaeoisariopsis griseola) in Kenya indicated >23% reductions (P<0.05) in area under the disease progress curve

TonB-dependent outer-membrane proteins of Pseudomonas fluorescens : diverse and redundant roles in iron acquisition

Creator:: Hartney, Sierra L.
Abstract:: Pseudomonas is a diverse genus of Gram-negative bacteria that includes pathogens of plants, insects, and humans as well as environmental strains with no known pathogenicity. Pseudomonas fluorescens itself encompasses a heterologous group of bacteria that are prevalent in soil and on foliar and root surfaces of plants. Some strains of...
Resource Type:: Dissertation
Full Text:: on foliar and root surfaces of plants. Some strains of P. fluorescens suppress plant diseases and

The effect of running speed and turning direction on lower extremity joint moment

Creator:: Lee, Ki-Kwang
Abstract:: Fast medio-lateral movements, frequent in a number of sports activities, are associated with lower extremity injuries. These injuries may occur as a result of excessive musculoskeletal stresses on the joints and their associate structures. The purpose of this study was to investigate the effect of running speed and turning movement...
Resource Type:: Dissertation
Full Text:: increased with running speed (p < .05). At the knee joint, flexion/extension and abduction/adduction

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Creator:: Huie, Jessica L.
Abstract:: Social behavior leading to the production of common goods is prone to exploitation. One such behavior in Pseudomonas aeruginosa is quorum sensing (QS), by which the bacteria produce signals to regulate extracellular common goods. Exploitation comes in the form of cheaters which have a mutation in the central quorum sensing...
Resource Type:: Masters Thesis
Full Text:: of P. aeruginosa and their interactions………………………………………………………….….….2 3. Figure 3. Frequencies

Ammonia-oxidizer and denitrifier populations in boreal forest soils of differing nitrogen availability

Creator:: Burton, Marci S.
Abstract:: Nitrification and denitrification are major biological processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO₃⁻) and gaseous N oxides. Although many studies in the past have studied N cycling communities, the effect of increased N inputs on ammonia-oxidizer and denitrifier population dynamics is still under...
Resource Type:: Masters Thesis
Full Text:: me mentally and not being shy with a word of encouragement. I thank Jeff Hatten and Kimberly

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