Index Catalog // ScholarsArchive@OSU

Comparative analysis of the factors contributing to olympic success : Taiwan, Republic of China, and the People's Republic of China

Creator:: Hsü, Ming-chʻang
Abstract:: Taiwan separated from China as the result of the 1949 political upheaval between Chiang Kai-Shek's Nationalist Government and Mao Tse-Tung's Communists Party which concluded with the Chinese Communist take over of mainland China and the establishment of the People's Republic of China. Since then, Taiwan, ROC and the PRC have...
Resource Type:: Dissertation

Epidemiological implications of sporozoite aggregation in malaria vectors

Creator:: Li, Xiaohong, 1963-
Abstract:: This study describes and quantifies some microprocesses of malaria transmission including blood vessel location by Anopheles stephensi and sporozoites delivery of An. stephensi infected by Plasmodium berghei. The study models the effects of malaria parasite-induced changes in probing behavior and mosquito mortality on disease transmisson. Finally, host, vector, and parasitological...
Resource Type:: Dissertation

The relationship of student involvement and multicultural comfort among student government members as compared with the student population at Oregon State University

Creator:: Hodges, J. Shannon
Abstract:: The purpose of this study was to investigate the level of social interaction and social comfort among five undergraduate ethnic groups: African American, American Indian, Asian American, Caucasian American, and Hispanic American. Another purpose was to explore the correlation between the level of social contact and comfort among the five...
Resource Type:: Dissertation

Environmental factors and plant-animal interactions on rocky shores along the Oregon coast

Creator:: Brosnan, Deborah M.
Abstract:: Factors affecting the persistence of mussels (Mytilus californianus) and their associated epibiont species were studied along the central Oregon coast. Interactions between mussels and their algal epibionts (Endocladia muricata) varied in sign and strength with environmental conditions. In extreme temperatures mussel—epibiont interactions determined survival of individual mussels, and persistence of...
Resource Type:: Dissertation

Watershed councils and woodland owners : the Oregon experience

Creator:: Rickenbach, Mark G., 1968-
Abstract:: Oregon's watershed councils are local, non-regulatory, collaborative forums charged with the recovery of endangered salmon and improving water quality under The Oregon Plan for Salmon and Watersheds. Private forest landowners, given their prominence is owning riparian areas, are central to success of these efforts. Using a statewide survey of watershed...
Resource Type:: Dissertation

Oceanographic influences on rocky intertidal communities : coastal upwelling, invertebrate growth rates, and keystone predation

Creator:: Sanford, Eric (Eric David)
Abstract:: The influence of large-scale processes on natural communities has become one of the central issues of modern ecology. I combined field and laboratory studies to investigate the effects of variation in coastal upwelling on rocky intertidal communities along the central Oregon coast. I examined whether the growth of intertidal barnacles...
Resource Type:: Dissertation

Mormons and evolution : a history of B. H. Roberts and his attempt to reconcile science and religion

Creator:: Reid, Tim S.
Abstract:: Although much has been written describing the various reactions to the origin of Species in America, the Mormon reaction to Darwinism has been largely ignored. This dissertation will recount the history of this reaction as exemplified by the life and works of B. H. Roberts. Roberts's intellectual pursuits early in...
Resource Type:: Dissertation

Life stories of high-risk white females teens : qualitative restrospective interviews with adolescents ten years after participation in a dropout and pregnancy prevention program

Creator:: Shaub, Tamara Lee
Abstract:: High rates and high costs of adolescent pregnancy and school dropout have resulted in the development of many prevention programs; however, little is known about the long-range effectiveness of efforts. Empirical research is needed to document behavioral outcomes over extended periods of time. I interviewed eight young white women who...
Resource Type:: Dissertation

Resident cutthroat trout in the central Coast Range of Oregon : logging effects, habitat associations, and sampling protocols

Creator:: Connolly, Patrick John, 1955-
Abstract:: Populations of coastal cutthroat trout, Oncorhynchus clarki clarki, were sampled in 16 headwater streams from logged (20-30 and 40-60 years ago) and unlogged (stand age 125-150 years) basins. Basins logged 20-30 years ago supported the widest range of mean biomass of age 1+ or older cutthroat trout (g/m2) and the...
Resource Type:: Dissertation

Mandatory versus voluntary adult learners : implications for trainers

Creator:: Noone, Sharron M.
Abstract:: During the past fifteen years, Professor John Keller has developed a systematic, comprehensive model to motivate adult learners. Its major elements are Attention- Relevance-Confidence-Satisfaction (ARCS), and research with volunteers confirms that the strategies improve adult responses in learning settings. Training in business and industry, however, often involves mandatory attendance by...
Resource Type:: Dissertation

The effects of dietary algal and lipid supplements on the gonadal and larval development of Crassostrea gigas kumamoto (Thunberg)

Creator:: Robinson, Anja M.
Abstract:: Under laboratory conditions, elevated temperatures accelerated production of gametes. However, when conditioning for spawning at elevated temperatures was initiated early in the season (January-March), larval survival and number of spat collected were significantly lower than when conditioning was initiated in may or June. At elevated temperatures, broodstock oysters were fed...
Resource Type:: Dissertation

Rheological behavior of Douglas-fir as related to the process of drying

Creator:: Wu, Qinglin
Abstract:: Large inelastic strain occurs inside a piece of lumber during drying. The strain consists of several components such as elastic, plastic, creep, shrinkage and mechano-sorptive effect. The mechanical behavior of the whole board during drying is determined by the behavior of individual strain components and their interactions. Whereas limited investigations...
Resource Type:: Dissertation

Characterization, chemodynamics and environmental impact assessment of leachates from complex organic materials

Creator:: Aboul-Kassim, Tarek A. T.
Abstract:: More than 65,000 organic chemicals are currently in commercial production with approximately 1000 added each year. Many chemicals are released into the environment as organic mixtures derived from complex hazardous or solid wastes. Of these, more than 1000 chemicals are of environmental concern because of their production quantities, toxicity, persistence,...
Resource Type:: Dissertation

A comparison of depression, stress and self-image between younger and older adolescent mothers

Creator:: Kitzrow, Martha Anne.
Abstract:: Adolescent pregnancy is a major social problem which results in negative psychological, medical, developmental, economic and educational consequences for both mother and child. A review of the literature examined psychological and sociocultural factors and negative consequences associated with adolescent pregnancy. There has been little research on age specific differences between...
Resource Type:: Dissertation

Post-eruption recovery and secondary production of grazing insects in two streams near Mt. St. Helens

Creator:: Meyerhoff, Richard Dietrich
Abstract:: The eruption of Mt. St. Helens provided the opportunity to study secondary production of grazing insects in the context of disturbance. Two stream sites were chosen that significantly differed in how their watersheds were impacted by the eruption. Clearwater Creek was catastrophically disturbed (physical alteration of habitat, loss of riparian...
Resource Type:: Dissertation

The impact of gender-role identity, gender ideology and drinking motivation on binge drinking and behavioral outcomes

Creator:: Ketcham, Patricia
Abstract:: The purpose of this study was to determine if there was a difference in students' drinking patterns and the resultant negative consequences based on gender role identity, gender role ideology and self-reported drinking motivations on a college campus. A questionnaire was administered to a sample of 735 university students. Gender...
Resource Type:: Dissertation

Generative evaluation of instruction in an Honors College, using small group instructional diagnosis : more than dots on a page

Creator:: Ringle, Judith Ann
Abstract:: Instruction in a University Honors College was evaluated using Small Group Instructional Diagnosis (SGID), a qualitative evaluation process. Fifty-one class sections were evaluated over a three-year period to determine what worked to help students learn, what did not work, and suggestions for improvement. Seven instructors used both SGID and an...
Resource Type:: Dissertation

An inquiry into the contribution of the Oregon Workforce Quality Council to the development of a world-class workforce

Creator:: Spilde, Mary F. T.
Abstract:: The purpose of this study was to provide understanding of Oregon Workforce Quality Council contributions to the development of a world-class workforce. Research goals were to describe Council processes and outcomes, as well as barriers to the achievement of Council purposes. A case-study approach was selected for the research design....
Resource Type:: Dissertation

An assessment of community-based adaptive watershed management in three Umpqua Basin Watersheds

Creator:: Habron, Geoffrey Bryan
Abstract:: The dissertation introduces community-based adaptive watershed management (CAWM) as a holistic conservation framework. The CAWM framework integrates social and ecological suitability to achieve conservation outcomes. The core theoretical concepts consist of adaptive management, adoption-diffusion, symbolic interactionism, community-based conservation, spatial analysis and watershed management. The CAWM framework is applied to the...
Resource Type:: Dissertation

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

Creator:: Streck, Martin J.
Abstract:: The Rattlesnake Ash-Flow Tuff erupted 7.05±0.01 Ma from the western Harney Basin, southeastern Oregon. The location of the vent area is inferred based on vent-ward increases in size of pumices, in degree of welding, and in degree of post-emplacement crystallization. Today's outcrops cover 9000 km2 and estimated original outcrop coverage...
Resource Type:: Dissertation

Changes in developing strawberry fruit : I. Cell division and enlargement ; and II. Biosynthesis of anthocyanins and other phenolics and activity of associated enzymes

Creator:: Cheng, Guiwen
Abstract:: Size and color are important visual quantity attributes of the fruit of strawberry (Fmgaria x ananassa Duch.). Strawberry cultivars produce fruit of a characteristic size and color, the later being the result of accumulation of particular anthocyanins. This research sought to determine the basis for genotypic differences in fruit size...
Resource Type:: Dissertation

Habitat use and productivity of Rio Grande wild turkey hens in southwestern Oregon

Creator:: Keegan, Thomas W.
Abstract:: Wild turkey (Meleagris gallopavo) ecology has been examined within its native range, but knowledge of extralimital populations of Rio Grande wild turkeys (M. g. intermedia) is lacking. I investigated habitat use, characteristics of activity sites, home ranges and movements, productivity, and survival of Rio Grande turkey hens from 1989 through...
Resource Type:: Dissertation

Comparison of perceived adequacy of nursing education of 1991 and 1992 graduates of Nevada nursing schools and their supervisor's appraisal of their quality of performance

Creator:: Metcalf, Carol
Abstract:: This investigation into nursing education in Nevada was initiated to assess both the quality and frequency of performance of 52 nursing behaviors, arranged in six groupings. Recent graduates were asked to evaluate how well they believed they were prepared to perform these behaviors related to teaching, leadership, planning & evaluation,...
Resource Type:: Dissertation

An evaluation of the economic impacts of reducing soil erosion and groundwater pollution in non-irrigated farming systems of northeastern Oregon

Creator:: Akinsanmi, Josiah Akinlayo
Abstract:: Increases in food demand, favorable commodity markets and drive towards increasing productivity at a greater economic efficiency have accelerated negative agricultural externalities, particularly erosion and water quality. The potential impact of these externalities on environmental quality and human health prompted an examination of current and potential production strategies on four...
Resource Type:: Dissertation

Development of enteric protected vaccines for aquaculture

Creator:: Piganelli, Jon D.
Abstract:: At present all vaccines for fish are primarily delivered either by injection or immersion which introduces added stress and labor. A more attractive method of vaccine delivery is oral administration using an enteric protection system, Enteric Coated Antigen Microspheres (ECAMs), which can be utilized for a variety of antigenic forms....
Resource Type:: Dissertation

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Creator:: Duan, Jinfan
Abstract:: This work describes the modeling framework and initial results for CLAWS (Coupled Landscape And Water System), a physically-based, spatially-distributed hydrologicgeomorphic model that has been coupled with a vegetation dynamics simulation. Spatial variability of topography, soil, vegetation, and climate drive a hydrology module that calculates the water budget at given time...
Resource Type:: Dissertation

Phenolic composition of red raspberry juice : influences of cultivar, processing and environmental factors

Creator:: Rommel, Angelika
Abstract:: Flavonols and ellagic acid compounds were characterized and measured in 55 experimental and commercial red raspberry juices by high performance liquid chromatography (HPLC) and diode array spectral techniques. Samples were prepared using Polyamide-6; a fraction eluted with methanol contained <_ 8 quercetin-glycosides, quercetin and kaempferol. Another fraction, eluted subsequently with...
Resource Type:: Dissertation

Measurement analysis and efficiency estimation of three phase induction machines using instantaneous electrical quantities

Creator:: Wiedenbrüg, Ernesto J.
Abstract:: Estimating the operating efficiency of an induction machine is of prime importance for modern plant management. An extensive testing program of present efficiency estimation techniques was performed at the Motor Systems Resource Facility (MSRF), during which serious shortcomings of the existing techniques were identified. The objective of the work of...
Resource Type:: Dissertation

Response of ponderosa pine forests in central Oregon to prescribed underburning

Creator:: Landsberg, Johanna Dobrot
Abstract:: Tree growth and soil nutrient responses to prescribed underburning were determined for a period of up to 12 years at four sites in northcentral and central Oregon ponderosa pine stands (Pinus ponderosa Dougl. ex Laws). Differences reported are significant at a = 0.10. During the first 4-growing-season-measurement period after underburning,...
Resource Type:: Dissertation

The Calvin impact crater, Cass County, Michigan : identification and analysis of a subsurface ordovician astrobleme

Creator:: Milstein, Randall L.
Abstract:: The Calvin impact crater is an isolated, nearly circular subsurface structure of Late Ordovician age in southwestern Michigan. The crater is defined by 110 on and gas test wells, has a rim to rim diameter of 6.2 km, an overall dimensional diameter of 8.5 km and consists of a central...
Resource Type:: Dissertation

The geochemistry and geochronology of the Eocene Absaroka volcanic province northern Wyoming and southwest Montana, USA

Creator:: Hiza, Margaret M.
Abstract:: The Absaroka volcanic province is the largest of Eocene volcanic fields in the northern Cordillera of the western U.S., and consists of 25,000 km2 of lava flows, shallow intrusions, ash-flow tuffs and volcaniclastic deposits. It is aligned with northwest-trending Precambrian lineaments, and includes the remains of at least ten volcanic...
Resource Type:: Dissertation

Evaluation of seismic hazards from the Median Tectonic Line, Japan and blind thrust faults in the Los Angeles metropolitan area, California

Creator:: Tsutsumi, Hiroyuki
Abstract:: This thesis analyzes active geologic structures in densely populated areas in Japan and southern California based on geological, geophysical, and paleoseismological observations. Chapter 2 discusses segmentation and paleoseismology of the Median Tectonic Line, Japan. We identified 12 geometric segments along the Median Tectonic Line separated by discontinuities such as en...
Resource Type:: Dissertation

Temporal and spatial variability of methane emissions from Alaskan Arctic tundra

Creator:: Morrissey, L. A.
Abstract:: Methane flux was measured from northern Alaska Arctic Coastal Plain wetlands to assess the spatial and temporal variability of Arctic tundra emissions during the summers of 1987 through 1990. Initially, the role of vegetation in the release of methane from substrate to atmosphere was assessed. Methane emissions were shown to...
Resource Type:: Dissertation

Fouling characteristics of organic fluids

Creator:: Oufer, Lounes
Abstract:: A systematic study of the fouling characteristics of organic fluids was conducted in an annular test section. The study consisted of four main parts. First, the effect of key factors such as surface temperature, velocity, concentration, and oxygen on fouling from the system styrene-heptane-polystyrene was investigated. While surface temperature increased...
Resource Type:: Dissertation

Effects of individualized examples and personalized contexts in computer-based adaptive teaching of algebra word problems

Creator:: Lwo, Lwun-syin
Abstract:: The purpose of the present investigation was to develop an adaptive teaching model for an interactive computer-assisted instruction (CAT) program and to evaluate the effectiveness of the implementation of individualized examples or individualized examples in personalized contexts. Translating word problems into equations provided the context for the CAT investigation. Four...
Resource Type:: Dissertation

Relationship between a collaborative learning community and the persistence of community college students

Creator:: Ramaker, M. Jolene
Abstract:: This study explored the effects of a collaborative learning community (CLC) upon the persistence of community college students. Treatment subjects were participants in two different offerings of the learning community "Life on the Edge". The ex post facto design compared treatment group subjects' persistence to goal with persistence to goal...
Resource Type:: Dissertation

Taxonomy, paleoecology, and paleobiogeography of Wenlockian (Silurian) brachiopods of the Cape Phillips formation from Baillie Hamilton Island, Arctic Canada

Creator:: Zhang, Ning
Abstract:: Eighty-seven brachiopod species are described and illustrated from a brachiopod fauna of the Cape Phillips Formation of Baillie Hamilton Island, Arctic Canada. Two new families, Wangyuiidae and Rhynchotretidae, are proposed. Six new genera and forty-five new species are recognized. New genera comprise: Flabellitesia, Wangyuia, Pseudomendacella, Eoplectodonta (Paranisopleurella), Johnsonatrypa, and Dicoelospirifer....
Resource Type:: Dissertation

A comparison of auditory and visual graphs for use in physics and mathematics

Creator:: Sahyun, Steven Carl
Abstract:: The ability to interpret graphical information is a prime concern in physics as graphs are widely used to give quick summaries of data sets, for pattern recognition, and for analysis of information. While visual graphs have been developed so that their content can be readily and concisely discerned, there is...
Resource Type:: Dissertation

Thermo-hygro rheological behavior of materials used in the manufacture of wood-based composites

Creator:: Ren, Shan
Abstract:: Thermo-hygro-rheology of wood-adhesive systems plays an important role during the hot pressing process of wood based composites. The principal objective of this research is to quantitatively study the thermo-hygro rheological characteristics of wood-adhesive systems used in such composites. This is with a view to providing material characteristics which may be...
Resource Type:: Dissertation

Streamflow and bedload transport in an obstruction-affected, gravel-bed stream

Creator:: Smith, Richard D. (Richard Dean), 1950-
Abstract:: The mechanisms of pool maintenance were investigated in a small (width = 10 m, drainage area = 18 km2), gravel-bed stream where pools are commonly associated with large, in-channel obstructions. Measurements of boundary shear stress, scour and fill of the stream bed, and bedload transport rate and grain-size distribution were...
Resource Type:: Dissertation

Predicting unpredicted happenings in complex instructional design projects

Creator:: Beal, Mary C.
Abstract:: The purpose of this study was to discern unpredicted, non-linear patterns that may emerge in complex instructional systems design projects. A secondary purpose was to determine how existing models could be redesigned to accommodate emerging factors. The following questions focused the inquiry: 1. In what ways does the actual ISD...
Resource Type:: Dissertation

Spatial analysis techniques for ensuring the compatibility of land management activities and aquatic habitat quality in eastern Oregon

Creator:: Bettinger, Pete, 1962-
Abstract:: A land management scheduling model is developed that uses a Tabu search procedure to schedule timber harvests and road management activities, while simultaneously meeting (over time and space) two aquatic goals, and also providing for an even-flow of timber harvest volume. Decision variables include land units and roads, and they...
Resource Type:: Dissertation

Using Tabu Search to solve tactical forest planning problems with spatial wildlife habitat goals and constraints

Creator:: Boston, Kevin Donald
Abstract:: A method was developed to formulate and solve a fifty-year tactical harvest scheduling problem that included spatial wildlife habitat goals and constraints for a 4800-acre watershed in Northwestern Oregon under four scenarios. Three goals and two habitat constraints were included in each scenario. The first goal was a volume goal....
Resource Type:: Dissertation

Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

Creator:: Bransom, Mark
Abstract:: Two hilislope sites in the central Oregon Coast Range were instrumented and monitored for winter precipitation and saturated and unsaturated subsurface conditions. The study sites were near-ridge depressions typically known as headwalls. Based on results of the monitoring, two existing mathematical models were adapted to predict piezometric levels in headwalls...
Resource Type:: Dissertation

Experimental evaluation and chemical modeling of hexavalent chromium adsorption, desorption, and reduction in a natural soil

Creator:: Azizian, Mohammed F.
Abstract:: Chromium and its compounds are widely used by modern industries, resulting in large quantities of this element being discharged into the environment. To remove chromium from contaminated soils and ground water, it is necessary to predict chemical and physical processes that control the rate of reactions and transport of chromium...
Resource Type:: Dissertation

Geographic variation and mass mortality in the black abalone : the roles of development and ecology

Creator:: Tissot, Brian N. (Brian Nelson)
Abstract:: Studies of geographic variation are central to understanding ecological and evolutionary processes. Geographic variation in the shell of the black abalone (Halioth cracherodii), a marine intertidal gastropod, involves both clinal and local variation along the eastern Pacific coast in the number and size of tremata (=respiratory pores) on the shell....
Resource Type:: Dissertation

Scenic quality at Crater Lake National Park : vistitor perceptions of natural and human influence

Creator:: Rolloff, David B.
Abstract:: This study explored park visitors' preferences for scenic vistas at Crater Lake National Park, and whether their scenic evaluations would be affected if water levels of Crater Lake changed. Three main areas were addressed in the study. The first tested park visitors' ability to perceive differences in the level of...
Resource Type:: Dissertation

A model for the economic evaluation of training alternatives for complex logging tasks

Creator:: Garland, John J.
Abstract:: Training of woodsworkers is described as important for the logging industry in Oregon. There has been little documentation of training gains or research that measures the effects of training from the perspective of the logging firm. Learning theories are evaluated and Towill's form of learning curves are selected for an...
Resource Type:: Dissertation

A study of chronic neck pain following whiplash injury

Creator:: Freeman, Michael D., (Michael David)
Abstract:: This thesis is presented in five chapters. The first and fifth chapters are an introduction and summary. The second chapter, A Comprehensive Review of the Literature Relating to Chronic Neck Pain and Whiplash Injuries, reports the results of a review of the relevant literature. In the first section, commonly used...
Resource Type:: Dissertation

Roles and responsibilities of school nurses in Benton, Clackamas, Lane, Linn, and Marion counties, Oregon

Creator:: Vongleang, Pattamaporn
Abstract:: A considerable number of research studies have been conducted in order to suggest a professionally desirable and practically feasible definition of the school nurse's role. Yet, the role of the school nurse remains unclear to both the lay public and the nursing profession. The main purpose of this qualitative research...
Resource Type:: Dissertation

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