Index Catalog // ScholarsArchive@OSU

Optimal harvesting of continuous age structured populations

Creator:: Smith, Steven J.
Abstract:: We investigate the optimal harvesting strategies for McKendrick type population models. Models of this type endow the population with a continuous age structure. They consist of a partial differential equation with a boundary condition which involves an integral of the solution. We study two problems, the first concerns the yield...
Resource Type:: Dissertation
Full Text:: Age Structured Populations Abstract approved: Lea F. Murphy We investigate the optimal harvesting

Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Creator:: Condon, Lea A.
Abstract:: We are at risk of losing the sagebrush steppe in the floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin includes the Central Basin and Range, the Northern Basin and Range, and the Snake River Plain. The Great Basin receives most of its precipitation...
Resource Type:: Dissertation
Full Text:: . Lea A. Condon, Author ACKNOWLEDGEMENTS I would like to acknowledge the members of my

The comparative histology and histochemistry of the digestive tract of the land snails Allogona townsendiana, Lea (herbivorus) and Haplotrema vancouverense, Lea (carnivorous)

Creator:: Monroe, James E.
Resource Type:: Dissertation
Full Text:: HISTOLOGY AND HISTOCHEMISTRY OF THE DIGESTIVE TRACT OF THE LAND SNAILS ALLOGONA TOWNSENDIANA. LEA

A model of fall chinook salmon (Onchorhynchus tshawytscha) life history

Creator:: Hirai, Takayuki
Abstract:: The research involved development of two ecological simulation models to explain the complex dimensionality of chinook salmon (Oncorhynchus tshawytscha) life history structure (represented by the age composition of the spawning stock) and management difficulties entailed in the complexity. Since different sizes of chinook salmon are thought to adapt differently to...
Resource Type:: Dissertation
Full Text:: (ONCORHYNCHUS TSHAWYTSCHA) LIFE HISTORY Abstract approved:_ Redacted for Privacy I J. Liss The research

Performance and optimum design analysis/ computation for propeller type wind turbines

Creator:: Walker, Stel Nathan
Abstract:: Development of a performance analysis for propeller type wind turbines is presented. The analysis uses a strip theory approach that includes tip-loss and blade interference. A comparison is presented between analysis and test data. The comparison indicates that the analysis predicts wind turbine performance to an accuracy that is within...
Resource Type:: Dissertation
Full Text:: many. It is with pleasure that I acknowledge their assistance. Dr. Robert F. Wilson, my major

Selected effects of a computer game on achievement, attitude, and graphing ability in secondary school algebra

Creator:: Marty, James Frank
Abstract:: The hypotheses of this study stated the following: Interaction with the computer game will significantly increase the class means in: (1) mathematical achievement, (2) attitudes toward mathematics, and (3) graphing ability in high school advanced algebra. ALGEBRA ARCADE is a computerized simulation game played on a coordinate grid. One can...
Resource Type:: Dissertation
Full Text:: SCHOOL ALGEBRA 4/7 Redacted for Privacy Abstract approved Howard L. Wilson The hypotheses of this

A comparison of Computer-Assisted Instruction with Prescription Learning and the traditional "pull-out" program used in supplementing instruction of mathematics basic skills to Chapter I (Title I) students

Creator:: Miller, Suzanne Winifred Hilton
Abstract:: The purpose of this study was to compare the Chapter I supplemental mathematics program CAI with other Chapter I supplemental mathematics programs, Prescription Learning and the traditional "pull-out" program, in terms of achievement and retention of mathematics basic skills. There were 577 Chapter I students from 12 middle schools and...
Resource Type:: Dissertation
Full Text:: (Title I) Students Abstract Approved: Redacted for privacy }inward L. Wilson The purpose of this

Fescue taxonomy in the Pacific coast states

Creator:: Wilson, Barbara L.
Abstract:: Accurate taxonomy is essential to preservation and management of native grasses. Four problems in fescue taxonomy were investigated: the identity of the native fescue that dominates western Oregon and Washington prairies, the relationship of native Festuca roemeri to closely related grasses, the status of F. howellii and F. washingtonica, and...
Resource Type:: Dissertation
Full Text:: Nelson 655 Nelson s.n. Peck 7852 POLK COUNTY +Wilson 7725 11-May-1974 II-Jun-1984 13-Jul-1930 I I -Apr

Electron-diffraction investigations of the molecluar structures of some oxides of nitrogen : I. dinitrogen tetroxide (N₂O₄) : II. dinitrogen pentoxide (N₂O₅)

Creator:: McClelland, Bruce Wilson
Resource Type:: Dissertation
Full Text:: is presented t"/ 1/-71 Typed by Cheryl E. Curb for Bruce Wilson McClelland ACKNOWLEDGEMENTS I am

The Application of Machine Learning Techniques on Marine Science Models

Creator:: Ellenson, Ashley
Abstract:: A variety of stakeholders require information about marine systems. In the open ocean, pilots of marine vessels require knowledge about environmental conditions for safe passage and route planning. On the coastline, communities rely on information about nearshore dynamics to increase safety from coastal hazards such as nearshore pollutants, coastal erosion,...
Resource Type:: Dissertation
Full Text:: Application of Machine Learning Techniques to Marine Science Models Abstract approved: Gregory Wilson A

A study of the effect of an answer-until-correct multiple-choice procedure on mathematics achievement

Creator:: Thompson, Linda Grace
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: Abstract approved: Redacted for Privacy Howard Wilson This investigation was designed to investigate the

A methodology for safeguards evaluation and its application to mixed oxide fuel fabrication

Creator:: Azarfar, Mohammad Ali
Abstract:: This study focuses on the development of a methodology to evaluate safeguardability of various processes in the nuclear fuel cycle. National and international implementation of safeguards systems has been investigated. It was concluded that proliferation is purely a political question that, hopefully, can be prevented by international norms and diplomacy;...
Resource Type:: Dissertation
Full Text:: Research) and EPRI (Electric Power Research Institute). This funding is gratefully acknowledged. I am

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

Creator:: Lutterschmidt, Deborah I.
Abstract:: Most vertebrates exhibit seasonality in many life history traits. Such seasonal rhythms are temporally organized via the transduction of environmental cues (e.g., photoperiod, temperature) into appropriate endocrine signals. However, among ectothermic vertebrates that undergo continuous winter dormancy, temperature is the only environmental cue available for synchronizing seasonal rhythms. Most intriguing...
Resource Type:: Dissertation
Full Text:: at E.E. Wilson. I especially appreciate his enduring patience with my unusual research schedules

Genetic Structure in Populations of the Douglas-fir Swiss Needle Cast Fungus Nothophaeocryptopus gaeumannii

Creator:: Bennett, Patrick I.
Abstract:: The fungus Nothophaeocryptopus gaeumannii is the causative agent of Swiss needle cast (SNC), a foliar disease of Douglas-fir. Disease is characterized by premature loss of foliage and reduced growth resulting from the inhibition of photosynthesis due to the occlusion of stomata by the ascocarps of N. gaeumannii. Although the disease...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Patrick I. Bennett for the degree of Doctor of Philosophy in

Design and analysis of a nuclear reactor core for innovative small light water reactors

Creator:: Soldatov, Alexey I.
Abstract:: In order to address the energy needs of developing countries and remote communities, Oregon State University has proposed the Multi-Application Small Light Water Reactor (MASLWR) design. In order to achieve five years of operation without refueling, use of 8% enriched fuel is necessary. This dissertation is focused on core design...
Resource Type:: Dissertation
Full Text:: SMALL LIGHT WATER REACTORS. By Alexey I. Soldatov A DISSERTATION Submitted to Oregon

The effects of nitrogen manipulations and hydrology on the establishment and competitive abilities of wetland prairie plant species (western Oregon)

Creator:: Davis, Kimberly J.
Abstract:: Many studies suggest that weedy plant species are most successful when soil nitrogen in abundant. Consequently, I used soil nitrogen manipulations to determine if altering nitrogen would affect the establishment of both weedy and native plant species in a western Oregon wetland prairie. In two studies, we added carbon amendments...
Resource Type:: Dissertation
Full Text:: degree. I would first like to thank my major professor Mark V. Wilson for showing me unlimited patience

Effects of selected mathematical computer games on achievement and attitude toward mathematics in university entry-level algebra

Creator:: Moore, Margaret L.
Abstract:: Two mathematical computer games, POE and EQUATIONS, were used to test the effects of games as learning aids in a university entry-level intermediate algebra course. Specifically, this study investigated whether use of these games would significantly increase student achievement in the course and improve student attitude toward mathematics. EQUATIONS is...
Resource Type:: Dissertation
Full Text:: MATHEMATICS IN UNIVERSITY ENTRY-LEVEL ALGEBRA Abstract approved: Redacted for Privacy Howard L. Wilson Two

Linearized model for wind turbines in yaw

Creator:: Chaiyapinunt, Somsak
Abstract:: The analysis of rigid hub, three-bladed horizontal-axis, axisymmetric wind turbines in yaw is made using a linearized, four-degree-of-freedom model. The linearized equations of motion of rotor and nacelle are developed using quasi-steady blade element theory and Lagrange's equations. The yaw behavior of the system is studied from coefficients of the...
Resource Type:: Dissertation
Full Text:: ACKNOWLEGMENTS I would like to express my sincere gratitude to Dr. Robert E. Wilson, my major professor, for

Turbulence induced loads on a teetered rotor

Creator:: Weber, Timothy L.
Abstract:: Development of variable speed horizontal axis wind turbines has resulted in a need for an analysis code with a rotor speed degree-of-freedom. This study develops a five degree-of-freedom time domain computer code that evaluates blade and rotor, mean and cyclic loads with nonlinear aerodynamics together with atmospheric turbulence as a...
Resource Type:: Dissertation
Full Text:: Abstract approved: Robert E. Wilson Development of variable speed horizontal axis wind turbines has

Some effects of video-tape feedback on selected verbal and nonverbal teaching behaviors of prospective elementary teachers

Creator:: Lippe, Dwight Edgar
Abstract:: This investigation was designed to determine the effectiveness of video-tape feedback as a technique to modify some selected behaviors of untrained prospective elementary teachers. Four verbal and four nonverbal behaviors were considered; they were: teacher questioning, teacher telling, teacher distractive verbal, teacher allowing for pupil verbal, teacher constructive nonverbal, teacher...
Resource Type:: Dissertation
Full Text:: BEHAVIORS OF PRO- SPECTIVE ELEMENTARY TEACHERS Redacted for Privacy Abstract approved: Howard L. Wilson

Inheritance of plant height, date of heading and tillering in three wheat crosses

Creator:: Nandpuri, Karam Singh
Resource Type:: Dissertation
Full Text:: OF CONTENTS Page I ntroductïon . . . . . . . . . . . i Review of i1toraturo . . , . . . . . 3

Some effects of an activity approach to teaching geometry in the high schools in Afghanistan

Creator:: Monier, Mohammad Ibrahim
Abstract:: The purpose of this study has been to investigate the effects of an activity approach to teaching geometry in certain high schools of Afghanistan. A brief review of the historical background of mathematics education especially in Afghanistan has been presented in this study. Students in the activity approach were involved...
Resource Type:: Dissertation
Full Text:: Privacy Redacted for PrivacyAbstract approved:_ Dr. Howard L. Wilson The purpose of this study has been

The effects of ryegrass competition and different nitrogen levels on the growth and yields of semi-dwarf wheat varieties

Creator:: Swearingin, Marvin LaVerne
Resource Type:: Dissertation
Full Text:: Major Chairma~~u.<i.~ Committee Dean of Graduate School Date thesis is pr esented_-'a=::::~~,~&z

Evaluation of horizontal axis wind turbine blade loads using unsteady aerodynamics

Creator:: Hartin, John R.
Abstract:: Most existing analyses of the blade loads on horizontal axis wind turbines are conducted using linear steady-state aerodynamics, but evaluation of loads resulting from wind turbulence or gusts may not be adequate using these techniques. This study develops single-parameter approximations for both the shed wake and trailing wake components of...
Resource Type:: Dissertation
Full Text:: Turbine Blade Loads Using Unsteady Aerodynamics Redacted for Privacy Abstract approved: Robert E. Wilson

Engineering analysis of a rotary dryer : drying of wood particles

Creator:: Kamke, Frederick A.
Abstract:: 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,...
Resource Type:: Dissertation
Full Text:: Analysis of a Rotary Dryer: Drying of Wood Particles Abstract approved: Dr. James B. Wilson Rotary

Wind tunnel simulation and field measurements of flow over a coastal headland

Creator:: Brownlow, Roger West
Abstract:: An experimental study was made of the average and turbulent wind characteristics of the flow over a model of a coastal headland. The scale of the model was 300:1, corresponding to a prototype size of 500 m. The data for validation of the model study was obtained from instruments mounted...
Resource Type:: Dissertation
Full Text:: Abstract approved: RObert E. Wilson An experimental study was made of the average and turbulent wind

The intramolecular cyclization of organoaluminum compounds ; Reductions using low-valent titanium and zirconium complexes

Creator:: Chum, Pak-Wing
Resource Type:: Dissertation
Full Text:: . Wilson Intramolecular cyclization of organometallic compounds represents a promising tool for synthesis

The evaluation of heterosis for grain yield, total leaf area and malting quality in 21 spring barley crosses

Creator:: Carleton, A. E. (Albert Eugene), 1940-
Abstract:: The purpose of this study was to determine the amount of heterosis in three complex traits in barley and to investigate the concept of component interaction as a means of producing heterosis. The complex traits were grain yield, total leaf area, and malting quality. Seven varieties of spring barley were...
Resource Type:: Dissertation
Full Text:: for the Farm Crops (uajor)(Name) Date thesls ls presented 'll L"ar",rri,, 3, I q b r, Tltle I?E

Stochastic loads on horizontal axis wind turbine blades

Creator:: Freeman, Lisa Nalani
Abstract:: The objective of this work was to develop a method for determining stochastic loads on horizontal axis wind turbine blades. Stochastic loads caused by wind turbulence are a major consideration in designing for long life, cost effective wind turbines. The rotor blades are of particular concern because the blades are...
Resource Type:: Dissertation
Full Text:: Horizontal Axis Wind Turbine Blades. Abstract approved: Robert E. Wilson The objective of this work was to

Verbal classroom interaction in elementary school mathematics classes in Saudi Arabia

Creator:: Filemban, Samir Noorudein
Abstract:: Currently there is a lack of documentation on the types of teaching methods being used to teach elementary mathematics in Saudi Arabia, To help meet this need, this research project studied the verbal behavior of Saudi Arabian elementary mathematics teachers. A two-fold problem was addressed. 1. To obtain a description...
Resource Type:: Dissertation
Full Text:: Howard L. Wilson Currently there is a lack of documentation on the types of teaching methods being used

Concurrent remediation for inadequate preparation for the calculus

Creator:: Hunt, Howard C.
Abstract:: This investigation was designed to determine whether a remediation program concurrent to enrollment in the Calculus could be used to reveal and remedy student deficiencies involving pre-calculus topics, promoting a greater degree of success in the Calculus. The instructional model for the program that was investigated consisted of pretesting the...
Resource Type:: Dissertation
Full Text:: . Wilson This investigation was designed to determine whether a remedi- ation program concurrent to

Method of characteristics and its application to blast waves in water and two-phase flow

Creator:: Seddigh, Foad
Abstract:: The theory of characteristics is discussed and its scope has been broadened by its application to the most general form of an unsteady, two-dimensional, compres sible, rotational, axial- symmetric fluid flow. Numerical procedure for solving such a problem is outlined. Several boundary conditions which are common in fluid flow problems...
Resource Type:: Dissertation
Full Text:: Abstract approved: Redacted for Privacy ----Robet E. Wilson The theory of characteristics is discussed

Some effects of grouping by subject matter major on student performance in college calculus

Creator:: Steffani, Ronald R.
Abstract:: This investigation was designed to determine the general achievement, ability to solve applied problems, and attitude toward the role of mathematics in science of college calculus students grouped in an experimental class according to academic major during their first three terms. The subgroups were biology-business, mathematics, and science-engineering majors. The...
Resource Type:: Dissertation
Full Text:: for Privacy Abstract approved: HlOward L. Wilson This investigation was designed to determine the

Economic considerations in managing Oregon Rocky Mountain elk

Creator:: Sandrey, Ronald Albert
Abstract:: The size of elk herds in Eastern Oregon has become a controversial issue. Trade-offs exist between the numbers of elk and domestic livestock on a given area of land, and also between elk and commercial timber harvesting policies. Disputes arise from differing views as to proper use of the natural...
Resource Type:: Dissertation
Full Text:: Title: ECONOMIC CONSIDERATIONS IN MANAGING OREGON ROCKY MOUNTAIN ELK Abstract approved: Wilson E

Dynamic mechanical analysis of wood and wood-based composites

Creator:: Gao, Hong
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: of Wood and Wood-based Composites. Abstract approved: James B. Wilson Wood and wood-based

On the fracture mechanics of oriented flakeboard

Creator:: Lei, Young-kong
Resource Type:: Dissertation
Full Text:: Title: ON THE FRACTURE MECHANICS OF ORIENTED FLAKEBOARD James B. Wilson For an oriented flakeboard it

Evaluation of methods for predicting yield in early generations of winter wheat crosses

Creator:: Sinha, Surendra Prasad
Resource Type:: Dissertation
Full Text:: calculated by the formula given by Falconer and Allard (4; 1): R=i\/"vp Hs Where R = Response i

Engineering study on the drying of wood particles in a fluidized bed

Creator:: Milota, Michael R.
Resource Type:: Dissertation
Full Text:: : Engineering Study on the Drying of Wood Particles in a Fluidized Bed ' Dr. James B. Wilson Fluidized bed

The influence of vocationally-oriented applications on the achievement and attitude of community college algebra students

Creator:: Morgan, Micheal E.
Abstract:: The purpose of this study was to analyze the effect of the use of vocationally - oriented applications on the achievement and attitude of community college beginning algebra students. The applications were chosen to be representative of problems encountered in a variety of occupations. They were in contrast to the...
Resource Type:: Dissertation
Full Text:: COLLEGE ALGEBRA STUDENTS Redacted for privacyAbstract approved: Howard L. Wilson The purpose of this

Inheritance of resistance to barley yellow dwarf virus disease in barley

Creator:: Sieveking, William Earl, 1932-
Abstract:: Studies were conducted on artificially infected susceptible and resistant barley varieties in an attempt to determine the effect of barley yellow dwarf virus on the growth and development of these plants. A resistant and a susceptible variety were infected at four stages of growth and harvested at two stages. Roots,...
Resource Type:: Dissertation
Full Text:: Dr. Wilson H. Foote for his guidance and encouragement during the investigation and preparation of

Post-dispersal seed fates in a Western Oregon native prairie

Creator:: Clark, Deborah L.
Abstract:: Knowledge of post-dispersal seed fates and other regeneration characteristics is crucial for predicting abundances and distributions of populations and, ultimately, community species composition and diversity. Seed fate studies, however, are rare primarily due to the difficulty of determining seed fates and causes of mortality. This thesis investigated post-dispersal seed fates...
Resource Type:: Dissertation
Full Text:: Native Prairie. Abstract approved: Mark V. Wilson Knowledge of post-dispersal seed fates and other

Achievement effects of teacher comments on homework in mathematics classes in Saudi Arabia

Creator:: Ghandoura, Abbas Hassan
Abstract:: The purpose of this research was to study the effect of teachers' written comments on students' homework papers. Fourth, Sixth and ninth grade mathematics classes in Saudi Arabia were selected for the study. The hypotheses for the study stated the following: Teachers' comments significantly increase students' achievement in mathematics. The...
Resource Type:: Dissertation
Full Text:: : Redacted for privacy `Howard L. Wilson The purpose of this research was to study the effect of teachers

The effect of heterozygosity on phenotypic stability in spring barley

Creator:: Smith, Garry Austin
Abstract:: The effect of heterozygosity on the phenotypic stabilities of six morphological plant characteristics was studied in hybrid crosses of two self-pollinated barley species Hordeum vulgare L., emend Lam. and Hordeum distichum L., emend Lam. Experimental material consisting of parents and their F₁ diallel progeny were grown at two field locations...
Resource Type:: Dissertation
Full Text:: PHENOTYPIC STABILITY IN SPRING BARLEY Abstract approved: Dr. Wilson H. Foote The effect of

Comparative ecology of bobwhite and scaled quail in southern Texas

Creator:: Wilson, Marcia H.
Abstract:: For my research goals I addressed the theoretical importance of competition in habitat selection of 2 quails and examined the use of resources in peripheral and core areas. Methodological objectives were to determine cover and food selection of Texas bobwhite (Colinus virginianus texanus) and chestnut-bellied scaled quail (Callipepla squamata castanogastris)...
Resource Type:: Dissertation

Intercalation on hydrocarbons in polynucleotides

Creator:: Craig, Albert Morrie
Abstract:: The binding of eleven polycyclic, aromatic hydrocarbons to the acid form of poly A has been investigated. The hydrocarbons were chosen to test a size criterion. Model building showed that some hydrocarbons could intercalate in the helix and be well protected from contact with the aqueous solvent. Experimentally it was...
Resource Type:: Dissertation
Full Text:: IN POLYNUCLEOTIDES Abstract Approved: Redacted for Privacy I. Isenberg The binding of eleven

Family planning and sexual risk-taking among Mexican immigrant men : how does fatherhood matter?

Creator:: Cancel-Tirado, Doris I.
Abstract:: Men are frequently left out of the picture in the study of family planning and sexual risk behavior. This approach means few programs and policies address men's family planning and sexual health issues. There is also a lack of understanding of the role fatherhood plays in men's development and in...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Doris I. Cancel Tirado for the degree of Doctor of Philosophy in Human Development and

Scheduling non-uniform parallel loops on MIMD computers

Creator:: Liu, Jie
Abstract:: Parallel loops are one of the main sources of parallelism in scientific applications, and many parallel loops do not have a uniform iteration execution time. To achieve good performance for such applications on a parallel computer, iterations of a parallel loop have to be assigned to processors in such a...
Resource Type:: Dissertation
Full Text:: thank Dr. Lawrence Crowl for his suggestions concerning this research. I thank Dr. Wilson Schmisseur

Conservation genetics of Kincaid's lupine : a threatened plant of western Oregon and southwest Washington grasslands

Creator:: Severns, Paul M.
Abstract:: Kincaid's lupine (Lupinus oreganus Heller) is a federally listed threatened species native to remnant grassland of western Oregon and southwestern Washington, and is the primary larval host plant of a once thought extinct butterfly, Plebejus icarioides fenderi Macy. Past studies concerning Kincaid's lupine reproduction suggested that populations may suffer reductions...
Resource Type:: Dissertation
Full Text:: Grasslands Abstract approved: Aaron Liston Mark V. Wilson

Stagnation point heat transfer in a relaxing gas

Creator:: Wilson, Robert E.
Abstract:: Stagnation point heat transfer in a gas undergoing relaxation of its internal energy is examined by solution of the equations of motion using the two temperature approach of Wang Chang and Uhlenbeck. The results are presented in parametric form and show that relaxation effects produce an adiabatic wall temperature above...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF ROBERT ELLIOT WILSON for the degree of DOCTOR OF PHILOSOPHY in Mechanical

Toward an econometric model of the Oregon economy

Creator:: Smith, Gary Wilson
Resource Type:: Dissertation
Full Text:: by Donna Lee Norvell-Race for Gary Wilson Smith ACKNOWLEDGMENTS I wish to convey my gratitude

Student leadership development within student government at Snow College

Creator:: Wilson, Gordon Ned
Abstract:: The purpose of this study was to describe the leadership development process of former student leaders at Snow College. More specifically, the study focused on understanding how, when, and where leadership development took place in their "lived experience" within the student government at Snow College (Van Manen, 1998). Examining the...
Resource Type:: Dissertation
Full Text:: . _____________________________________________________________________ Gordon Ned Wilson, Author ACKNOWLEDGEMENTS I express my

The T-S gradient method, a new method of computing geostrophic currents over large ocean areas

Creator:: Denner, Warren Wilson
Resource Type:: Dissertation
Full Text:: presented I// iic Typed by Marion F. Palmateer for Warren Wilson Denner Redacted for Privacy Redacted for

Bayesian methods for knowledge transfer and policy search in reinforcement learning

Creator:: Wilson, Aaron
Abstract:: How can an agent generalize its knowledge to new circumstances? To learn effectively an agent acting in a sequential decision problem must make intelligent action selection choices based on its available knowledge. This dissertation focuses on Bayesian methods of representing learned knowledge and develops novel algorithms that exploit the represented...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Aaron Wilson for the

The determination and characterization of preferred orientation and the elastic anisotropy of rolled copper sheet

Creator:: Wilson, Dale
Abstract:: Relatively simple methods are developed for obtaining discreet orientation characterization of preferred orientation from x-ray diffraction-determined pole figure data. It is demonstrated how this information, along with the single crystal elastic constants, can be used to calculate Young's modulus as a function of sheet direction. Computer programs are developed for...
Resource Type:: Dissertation
Full Text:: orientation and the elastic anisotropy of rolled copper sheet AN ABSTRACT OF THE THESIS OF DALE WILSON for

Competition among three pasture species under different levels of soil nitrogen and light intensity

Creator:: Wilson, Donald Benjamin
Resource Type:: Dissertation
Full Text:: LEVF.LS OF SOIL NITROGEN AND LIGHT INTl ØSITY by DUNALD BENJAMIN WILSON A THESIS submitted to

A study of the economics of force molting in commercial egg production under conditions of certainty and uncertainty

Creator:: Parlour, James Wilson
Resource Type:: Dissertation
Full Text:: presented S7, /fb 7 Typed by Donna L. Olson for James Wilson Parlour ACKNOWLEDGEMENTS I would

Hydrography and heat flux in hydrothermal regions

Creator:: Wilson, Cara, 1967-
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF Cara Wilson for the degree of Doctor

A method of breeding for resistance to fusarium and bacterial wilt in alfalfa

Creator:: Wilson, Marvin L.
Resource Type:: Dissertation
Full Text:: , Wilson Foote, Ralph Bogart and William Chiloote, all of Oregon State College, for their valuable

Delayed changes in hepatic mixed function oxygenase enzymes in carmustine (BCNU) treated mice

Creator:: Wilson, Vincent Lee
Resource Type:: Dissertation
Full Text:: enzymes in carmustine (BCNU) treated mice AN ABSTRACT OF THE THESIS OF Vincent Lee Wilson for the

The effect of univalent cation salts on properties of pyruvate kinase

Creator:: Wilson, Richard Hansel
Resource Type:: Dissertation
Full Text:: Pyruvate Kinase AN ABSTRACT OF THE THESIS OF Richard Hansel Wilson for the (Name of student) in

Effect of untrained and trained peer tutors on the motor performance of students with developmental disabilities in integrated physical education classes

Creator:: Houston-Wilson, Cathy
Abstract:: The purpose of this study was to investigate the effect of untrained and trained peer tutors on the motor performance of students with developmental disabilities in integrated physical education classes. This study utilized a single subject delayed multiple baseline design across subjects. Six elementary age students with developmental disabilities and...
Resource Type:: Dissertation
Full Text:: OF THE THESIS OF Cathy Houston-Wilson for the degree of Doctor of Philosophy in Human Performance

Metabolism of progestins in the pregnant equine

Creator:: Wilson, Colleen Gay
Resource Type:: Dissertation
Full Text:: Wilson Redacted for privacy Redacted for privacy Redacted for privacy ACKNOWLEDGEMENTS I would

The effect of alkaline pH on the succinate oxidase system of sub-mitochondrial particles from beef heart muscle

Creator:: Wilson, David Franklin
Abstract:: The spectrophotometric method for the determination of the acid nonextractable flavin in the proteolytic digest of the trichloroacetic acid precipitate from the heart muscle preparation has been examined for the interference of the degraded hemeproteins. The proteolytic digest was chromatographically separated into the heme and flavin fractions. Spectrophotometric determinations made...
Resource Type:: Dissertation
Full Text:: Wilson for the Doctor of Philosophy in Biochemistry (Name) (Degree) (Major) Date thesis is presented

Design, development and optimization of a fluorometric reaction-rate instrument and method of analysis for metal ions

Creator:: Wilson, Robert Loren
Abstract:: The design, construction and operation of a fluorometric reaction rate instrument is described. The instrument is designed for simple operation with maximum versatility. Advantages and modes of operation of the system are discussed in detail. The instrument is used for the kinetics-based determination of trace levels of Ag and Al....
Resource Type:: Dissertation
Full Text:: LOREN WILSON for the degree of DOCTOR OF PHILOSOPHY in Analytical Chemistry presented on July 13, 1976

The isolation and the properties of the bark phenolic acids from mountain hemlock Tsuga mertensiana (Bong.) Carr.

Creator:: Wilson, Jim Degnan
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF JIM DEGNAN WILSON for a Doctor

Data assimilation for prediction of shallow water flows with uncertain bathymetry

Creator:: Wilson, Gregory W.
Abstract:: A new method is introduced for incorporating bathymetric uncertainty into predictions of nearshore and river flows (i.e., unstratified flows primarily forced by pressure and radiation stress gradients). The method involves the use of the ensemble Kalman filter (EnKF) as a parameter estimation scheme, where the parameter to be estimated is...
Resource Type:: Dissertation
Full Text:: Uncertain Bathymetry AN ABSTRACT OF THE DISSERTATION OF Gregory W. Wilson for the degree of Doctor of

Advanced Approaches in Hazard Assessment of Polycyclic Aromatic Hydrocarbons Using Zebrafish

Creator:: Wilson, Lindsay B.
Abstract:: The field of toxicology is challenged with a vast number of environmental chemicals and mixtures to which humans and ecosystems are exposed with limited toxicity data available. Chemical hazard assessment traditionally utilizes mammalian models and can be both cost- and time-limiting and may pose ethical concerns. To rapidly tackle this...
Resource Type:: Dissertation
Full Text:: Barbara Wilson for the degree of Doctor of Philosophy in Toxicology presented on January 13, 2023

New perspectives on evolutionary relationships within Pinus (Pinaceae) and within subsection Ponderosae (subgenus Pinus)

Creator:: Willyard, Ann Nachreiner
Abstract:: A fossil-calibrated phylogenetic framework based on exemplars from each of the four taxonomic sections within Pinus was created using multiple nuclear and chloroplast loci. Calibration at the well-defined subgeneric split within Pinus with either fossil leaves and cones (ca. 45 million years ago) or fossil wood (ca. 85 million years...
Resource Type:: Dissertation
Full Text:: Pinus). Abstract approved: Aaron I. Liston

Phylogenetics and genomic patterns of speciation in Pinus with an empahsis on subgenus Strobus

Creator:: Syring, John V.
Abstract:: Data from nuclear ribosomal internal transcribed spacer regions (nrITS) and chloroplast DNA (cpDNA) have failed to resolve phylogenetic relationships in Pinus. To provide greater interspecific resolution, five low-copy nuclear genes were developed from mapped conifer anchor loci. Four genes were sequenced from species representing all Pinus subsections. Individual loci do...
Resource Type:: Dissertation
Full Text:: the Departme(t of Botany and Plant Pathology Dean of the GrLiduat School I understand that my

Investigation of inheritance of glyphosate resistance and the mechanisms of glufosinate resistance in Italian ryegrass (Lolium perenne L. spp. multiflorum (Lam.) Husnot) populations

Creator:: Avila Garcia, Wilson Vidal
Abstract:: Italian ryegrass populations have been identified with evolved resistance to glyphosate in orchards with a history of glyphosate use. Two of these populations were selected to investigate the inheritance of glyphosate resistance. The mechanisms involved in the herbicide resistance were an altered target site for the population SF and reduced...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Wilson Vidal Avila Garcia for the degree of Doctor of

A relationship between wave dispersion and fracture strength for a composite material

Creator:: Ilcewicz, Larry Bert
Abstract:: Wave dispersion and fracture are phenomena that involve. mechanisms triggered at the scale of a material's internal structure. Experiments were performed with a candidate material to judge the hypothesis that wave dispersion measurements can be used to nondestructively predict fracture strength. Wood-based particleboard was chosen as the candidate material because...
Resource Type:: Dissertation
Full Text:: the prerequisite B.S. and M.S. degrees. I am indebted to my co-major professors, Dr. J. Wilson

Spin-flip probability of protons inelastically scattered from carbon and sulfur

Creator:: Wilson, Mark Alexander Dexter
Resource Type:: Dissertation
Full Text:: from carbon and sulfur AN ABSTRACT OF THE THESIS OF Mark Alexander Dexter Wilson for the Doctor of

Effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on Staphylococcal Enterotoxin B(SEB)-induced alterations in T-cell activation and cytokine production

Creator:: Huang, Wentian
Resource Type:: Dissertation
Full Text:: . Representing Toxico Chair of Program of ogy Dean of Gradu School gy I understand that my thesis will become

Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

Creator:: Smith, David R.
Abstract:: Seventy-two species of Blennocampinae in 21 genera and six tribes are known from the Nearctic region. The adults and known larvae of all species and genera are keyed, described and illistrated. A definition of the subfamily, a review of previous work, a table of host-plant associations, and a discussion of...
Resource Type:: Dissertation
Full Text:: Nearctic sawflies I, the adults and larvae of the

Defining intensity of skeletal loading in children

Creator:: Bauer, Jeremy J.
Abstract:: While exercise can be prescribed for improving cardiovascular and muscle health, no prescription exists for increasing bone mass. Because bone deformation rate has been identified as an important variable related to osteogenesis, estimates of skeletal loading during human activities likely characterize the associated osteogenic stimulus. However, estimates of body segment...
Resource Type:: Dissertation
Full Text:: : Defining Intensity of Skeletal Loading in Children. Abstract Approved: Wilson C

Time used for household work : comparisons for farm, rural nonfarm, and urban women

Creator:: Meiners, Jane Ella
Abstract:: This study examined time spent in various activities by farm women. Emphasis was placed on household work time and how time is apportioned among various household work activities. Time use of farm women was compared to rural nonfarm women and urban women. Data were from An Interstate Comparison of Urban/Rural...
Resource Type:: Dissertation
Full Text:: : Comparisons fox Farm Rural Nonfarm, and Urban Women Redacted for privacy Abstract approved: Geraldine I

Human biology for the liberal arts student

Creator:: Love, Chaille Mosely
Resource Type:: Dissertation
Full Text:: I wuld like to express deep appreciation to certain individuals !or guidance of thie study and

Parental stereotypes and children's memory for story content

Creator:: Lindauer, Shelley Lynne Knudsen
Abstract:: This study examined children's memory for traditional and nontraditional parental behaviors displayed in story content. Subjects were 40 male and 40 female preschool children between the ages of 47 and 60 months. Children were read a story portraying a mother and a father as the main characters. Each character performed...
Resource Type:: Dissertation
Full Text:: and Children's Memory For Story Content Redacted for privacyAbstract approved: Alan I. Sugawara C

Biochemical characterization and mutational analysis of human uracil-DNA glycosylase

Creator:: Chen, Cheng-Yao
Abstract:: PCR-based codon-specific random mutagenesis and site-specific mutagenesis were performed to construct a library of 18 amino acid changes at Arg276 in the conserved leucine-loop of the core catalytic domain of human uracil-DNA glycosylase (UNG). Each Arg276 mutant was then overproduced in E. coli cells and purified to apparent homogeneity by...
Resource Type:: Dissertation
Full Text:: : Michael I. Schimerlik PCR-based codon-specific random mutagenesis and site-specific mutagenesis were

Comparison of underemployed and not underemployed women in two-parent two-child families : an eleven-state rural-urban study

Creator:: Masuo, Diane M., 1947-
Abstract:: This study compared wives defined as underemployed by educational mismatch with not underemployed wives on four major predictor variables-- relative market work advantage; degree of competition in the female labor market; time demands from family members; and assistance with childcare and other housework. The data were from NE 113, An...
Resource Type:: Dissertation
Full Text:: : An Eleven-State Rural-Urban Study. Redacted for privacy Abstract approved: Geraldine I. Olson This

Wife/mother role adjustment and other managerial strategies related to a community leadership volunteer demand

Creator:: Snider, Martha Ann
Resource Type:: Dissertation
Full Text:: Volunteer Demand Abstract approved: Redacted for privacy Geraldine I. Olson ' Community volunteering by

The nutritive value for dairy cattle of irrigated pasture herbage under normal rotational grazing, strip grazing and green soiling methods as measured by digestibility studies and animal performance

Creator:: Chesnutt, Clarence
Resource Type:: Dissertation
Full Text:: to Dr. I. R. Jones for his constructive suggestions in planning and conducting this study and for

Genetic recombination of the integrative plasmid pMC7105 of Pseudomonas syringae pv. phaseolicola involves repetitive sequences

Creator:: Szabo, Leslie J.
Abstract:: A strain of the phytopathogenic bacterium Pseudomonas syringae pv. phaseolicola, a pathogen of common bean Phaseolus vulgaris, harbors a 150 kilobase pair (kb) plasmid pMC7105. In one strain, LR719, pMC7105 is stably integrated in the bacterial chromosome. Imprecise excision of the pMC7105 replicon has been shown to result in the...
Resource Type:: Dissertation
Full Text:: . phaseolicola Involves Repetitive Sequences Abstract Approved: Redacted for privacy Dallice I. Mills A strain

Evolutionary and ecological interactions affecting seaweeds

Creator:: Olson, Annette M.
Abstract:: The term "interaction" in evolutionary biology and ecology describes the relationships among variables in two classes of causal models. In the first, "interaction" refers to the influence of a single putatively causal variable on a variable of interest. In the second class of models, the term applies when a third...
Resource Type:: Dissertation
Full Text:: , and friendship. I thank Pete Dawson, Doug Markle, Mark Wilson, and Erwin Pearson for serving on my

A composite-beam finite element for seismic analysis of wood-framed buildings

Creator:: Lee, Chyuan-shen
Abstract:: A computer program called SAPWOOD which possesses the capability of performing linear or nonlinear, static or dynamic response including seismic excitation for wood-framed buildings with semirigid connection systems is presented in this study. Program SAPWOOD is a modification of the program NONSAP by adding new elements such as a linkage...
Resource Type:: Dissertation
Full Text:: Seismic Analysis of Wood-Framed Buildings Redacted for privacy Abstract approved: H. I. Laursen A

Preoperational spatial representation among preschool children in small-scale space

Creator:: Kozick, Stephanie A.
Abstract:: This study examined the effects of stage of preoperational thought, sex and mode of exploration on preschoolers ability to represent a small-scale model configuration of objects. Forty-eight subjects between the ages of 2 years, 5 months and 5 years, 4 months were classed in spatial conceptualization as either Stage I...
Resource Type:: Dissertation
Full Text:: : Redacted for Privacy Dr. Alan I(JSugawara This study examined the effects of stage of preoperational

Credit cards : understanding international graduate student consumers

Creator:: Punjavat, Tapin
Abstract:: This study examined graduate international students' knowledge, attitudes, experiences, practices, and satisfaction relating to credit cards. Based on the literature, international students attending U.S. colleges and universities were considered an important population to study because of: (1) internationalization of credit cards and (2) the lack of credit card research on...
Resource Type:: Dissertation
Full Text:: International Graduate Student Consumers Abstract approved: Geraldine I. Olso This study examined graduate

Sex role stereotypes and children's memory for story content

Creator:: Gentry, Sally A.
Abstract:: The present experiment examined children's memory for stereotypic and non-stereotypic sex role content in their reading material. Twenty-four male and twenty-four female fifth grade subjects read two short stories, each depicting a male and female character who exhibited an equal number of masculine and feminine traits and behaviors. Results of...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Abstract approved: Alan I. Suga4vara The present experiment examined children's

Response of family businesses to a natural disaster : a case study approach

Creator:: Hammond, Clark H.
Abstract:: Throughout the world, weather-related and other natural phenomena claim thousands of lives and devour billions of dollars annually in recovery efforts. Destruction of life and property in the wake of disasters is devastating, and can have a dramatic impact on families and businesses around the globe. Yet, published works specifically...
Resource Type:: Dissertation
Full Text:: of Family Businesses to a Natural Disaster: A Case Study Approach Abstract approved: Geraldine I

Immunotoxicity of the pyrrolizidine alkaloid monocrotaline in C57B1/6 mice

Creator:: Deyo, James A.
Abstract:: Monocrotaline (MCT) is a member of a class of naturally occurring phytotoxins known as pyrrolizidine alkaloids (PAs). Exposure to PAs can result in liver and cardiopulmonary lesions as well as lymphoid organ atrophy. In the present study C57BI/6 (B6) mice received MCT (0-150 mg/kg/day, po) for 14 days. Overt toxicity...
Resource Type:: Dissertation
Full Text:: Monocrotaline in C57BI/6 Mice Redacted for Privacy Abstract approved: / Nancy I. Kgrk 4liet Monocrotaline

Involvement of inflammation and associated Mac-1⁺Gr-1⁺ cells in the immune suppression induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)

Creator:: Choi, Jin-Young, 1964
Abstract:: Exposure to TCDD suppresses the generation of immune responses through unknown mechanisms. Interestingly, TCDD enhances inflammatory responses to various stimuli. The goal of the studies presented in this thesis was to examine the role of hyperinflammation in TCDD-induced immunotoxicity. Previously we observed an increase in Mac-1⁺ cells in the spleen...
Resource Type:: Dissertation
Full Text:: variety of genes (Figure 2-2: reviewed by Wilson and Safc, 1998). Induction of CYP IA I gene expression

Dynamic response of steel structures with semirigid connections

Creator:: Grant, Joseph Edward
Abstract:: The nonlinear response of a ten-story steel structure with semirigid girder connections is studied under conditions of dynamic loading. The dynamic loading used in this study is the North-South component of the May 18, 1940 El Centro, California earthquake. To deal with the complexity of the problem the structure is...
Resource Type:: Dissertation
Full Text:: SEMIRIGID CONNECTIONS Abstract approved: Harold I. Laursen The nonlinear response of a ten -story steel

The effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin on T cell activation

Creator:: Shepherd, David M.
Abstract:: The immune system has been identified as a very sensitive target for the toxic effects of 2,3,7,S-tetrachlorodibenzo-p-dioxin (TCDD). Exposure to TCDD has been shown to disrupt the generation of both cell-mediated and humoral T cell-dependent immunity in laboratory animals; however, the mechanism remains unknown. In this dissertation, the hypothesis is...
Resource Type:: Dissertation
Full Text:: suppressing the induction of the costimulatory molecule CDS6 on B220+ and Mac-I+ cells. To address the

Characterization of the replication, incompatibility, and recombination regions of Pseudomonas syringae pv. phaseolicola plasmid pEXC8080

Creator:: Poplawsky, Alan R.
Resource Type:: Dissertation
Full Text:: : Dallice I. Mills Pseudomonas syringae pv. phaseolicola is a pathogen of common bean Phaseolus vulgaris

Intra-household gender analysis of work roles and distribution of resources : a pilot study in a Nepalese village

Creator:: Bhadra, Chandra Kala
Abstract:: Thirty households were randomly selected to examine intra-household gender differentials in work roles and distribution of resources, between adult men and women, and boys and girls. Work related activities were assessed by time used in agricultural work, household work, and income generating work. Distribution of resources was assessed by expenses...
Resource Type:: Dissertation
Full Text:: Director, Family Resource Management Program Dean of Gradu e School I understand that my dissertation

The development of nursing agency in the context of oppression : a study of the experiences of nurse educators

Creator:: Schneider, Alisa L.
Abstract:: The purpose of this phenomenological study was to discover the experiences nurse educators (NEs) have had with oppression and to uncover how their experiences may have impacted their teaching. This study was significant as nurse retention is negatively affected by oppressed group behaviors (Duchscher & Myrick, 2008; Tinsley & France,...
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ Shelley I. Dubkin-Lee The

The Role of Cellular Senescence in the Development of Alzheimer's Disease

Creator:: Riordan, Ruben
Abstract:: Alzheimer’s Disease (AD) is a neurodegenerative pathology currently affecting nearly 44 million individuals worldwide, yet there are not currently any effective treatments or preventions for AD despite the rapid development in our understanding of the disease over the last four decades. The medical and sanitary innovations of the last century...
Resource Type:: Dissertation
Full Text:: Viviana I. Perez Alzheimer’s Disease (AD) is a neurodegenerative pathology currently affecting

Automated Assembly Planning : From CAD Model to Virtual Assembly Process

Creator:: Rafibakhsh, Nima
Abstract:: Assembly planning is a crucial task for every manufacturing product. In general, assembly operations consume more than 30% of the total manufacturing time and cost. Therefore, any effort in optimizing assembly will have a significant impact on the economic success of manufacturing. Finding an optimal assembly plan by hand is...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ Matthew I. Campbell Assembly

STEM Partnerships: Drawing on Historicity to Negotiate Tensions in Engagement

Creator:: Talamantes, Adam C.
Abstract:: This qualitative study examines how FIESTAS (Family Involved in Education, Sociocultural Teaching and STEM) partners (comprised of out-of-school time (OST) educators, university student STEM instructors, and local business representatives) came together to facilitate a local STEM Club located in two dual-immersion elementary schools in the Pacific Northwest. The study addresses...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ SueAnn I. Bottoms This qualitative study examines how FIESTAS (Family Involved in

Site-directed mutagenesis of the m2 muscarinic acetylcholine receptor

Creator:: Vogel, Walter Kevin
Resource Type:: Dissertation
Full Text:: Muscarinic Acetylcholine Receptor Abstract approved: Michael I. Schimerlik When the m2 muscarinic receptor

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