Index Catalog // ScholarsArchive@OSU

Three dimensional electromagnetic FDTD simulation of general lossy structures with nonuniform grid spacing

Creator:: Falconer, Maynard C.
Abstract:: A new second order accurate nonuniform grid spacing technique which does not depend on supraconvergence is developed for Finite Difference Time Domain (FDTD) simulation of general three dimensional structures. The technique is useful for FDTD simulations of systems which require finer details in small regions of the simulation space by...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Maynard Carver Falconer for the

Geneticist L.C. Dunn : politics, activism, and community

Creator:: Gormley, Melinda (Melinda Brooke)
Abstract:: L. C. Dunn (1893-1974) spent most of his scientific career conducting research in developmental genetics as a member of the Zoology Department at Columbia University in the City of New York. He had an accomplished scientific career researching mutations in mice, which earned him respect from other geneticists and scientists....
Resource Type:: Dissertation
Full Text:: : Mary Jo Nye L. C. Dunn (1893-1974) spent most of his scientific career conducting research

Semi-volatile organic compounds and developing organisms : accumulation in California mountain tadpoles in the field and fish embryo exposures in the laboratory

Creator:: Stanley, Kerri A.
Abstract:: The atmospheric transport and deposition of semi-volatile organic compounds (SOCs), including current and historic use pesticides, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), to mountain ecosystems may result in the exposure of tadpoles to these SOCs. This exposure has been implicated in amphibian population declines in California. Tadpoles encounter...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Staci L. Massey Simonich Lawrence R. Curtis The atmospheric transport and

A moral development theory : a synthesis from selected moral development theories, a spiral progression model of human development, and ego-state personality theory

Creator:: Armstrong, Carolyn S.
Abstract:: Controversy regarding moral development research has given rise to a proliferation of theories competing for acceptance. For all these researchers, the work of Lawrence Kohlberg is the pivot point for comparisons, contrasts, and discussions. Still, no theories to date adequately describe and document a theoretically complete conception of moral judgment...
Resource Type:: Dissertation
Full Text:: work of Lawrence Kohlberg is the pivot point for comparisons, contrasts, and discussions. Still, no

Inheritance of resistance to head smut disease in maize (Zea mays L.)

Creator:: Akhtar, Ali
Resource Type:: Dissertation
Full Text:: Resistance to Head Smut Disease in Maize (Zea mays L. ) « Abstract approved: .. ..^,, ^.^-r

Inheritance of stem elongation tendency in determinate forms of Phaseolus vulgaris (L.)

Creator:: Detongnon, Jean
Resource Type:: Dissertation
Full Text:: Elongation Tendency in Determinate Forms of Phaseolus vulgaris (L.) Abstract approved —^ .- , ., /J

Experimental and conceptual approaches to understanding Algal-Grazer interactions

Creator:: Donaghay, Percy L.
Resource Type:: Dissertation
Full Text:: THE ESTUARINE COPEPOD ACARTIA CLAUSI by Percy L. Donaghay and Lawrence F. Small School of

Student views on science and the scientific process : studying changes made in a redesigned non-major introductory science course

Creator:: Price, Matthew F.
Abstract:: The purpose of this study was to understand how instruction in an introductory nonmajor astronomy course at Oregon State University affects how non-science majors view science and the scientific process. The study used research-based methods to design a reform-based lecture/lab course and implement it for students. Two top-level questions were...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Lawrence B. Flick The purpose of this study was to understand how instruction in an

How do engineering students develop and reason with concepts of electricity within a project-based course?

Creator:: Bledsoe, Karen E.
Abstract:: Reform in science education has often emphasized task-based learning as an instructional method to improve student understanding and retention of concepts, and to promote the development of reasoning and problem-solving. Yet studies assessing student knowledge at the beginning and end of a task-based class show mixed results. Students in task-based...
Resource Type:: Dissertation
Full Text:: : _________________________________ Lawrence B. Flick Reform in science education has often emphasized task-based

A study of perceived and preferred ratings of institutional goals and priority rankings as viewed by faculty, students, and administrators at Oregon State University

Creator:: Taylor, William Lawrence
Abstract:: This study was undertaken as a result of an interest in the present and future purposes and functions of higher education. American society and higher education are moving through a period of change. Since each shapes and is shaped by the other, change in either may require a review and...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF WILLIAM LAWRENCE TAYLOR for the

Primary biomass and production processes in the Columbia River estuary

Creator:: Lara-Lara, Ruben
Resource Type:: Dissertation
Full Text:: my gratitude to my major professor, Dr. Lawrence F. Small, for his invaluable support, guidance and

Effects of method and timing of pollination and temperature on fruit development in red raspberry

Creator:: Bekey, Ronald S.
Resource Type:: Dissertation
Full Text:: ^_ F^vj. Lawrence The contribution of honey bees (Apis mellifera L.) to fruit set, length of the

A landscape-scale analysis of vegetation recovery at Mount St. Helens

Creator:: Lawrence, Rick L.
Abstract:: I used satellite remote sensing to examine the key factors controlling the natural revegetation of Mount St. Helens since its eruption in 1980. The study required three stages: determining the amount of vegetation present; characterizing vegetation change; and analyzing the influence of factors affecting vegetation change. To determine the amount...
Resource Type:: Dissertation

Guide groups : an evaluation of educational innovation in a secondary school

Creator:: Erickson, John William
Abstract:: Purpose of the Study: This study was undertaken as a result of interest in the introduction of guide groups into the operation of secondary schools. Particularly when viewed from the historical perspective of the times in which it was initiated, the guide group concept offers an opportunity to examine the...
Resource Type:: Dissertation
Full Text:: the Study Redacted for Privacy Dr. E. Lawrence Dale This study was undertaken as a result of

Species specific phytoplankton production rates during a spring diatom bloom in Yaquina Bay, Oregon

Creator:: McMurray, Gregory R., 1925-
Abstract:: A simplified autoradiographic method for estimating species-specific phytoplankton production rates in mixed natural communities was evaluated in the laboratory and employed in the field. Laboratory experiments were designed to test the reliability and variability of the simplified method. Assays of ¹⁴C uptake by liquid scintillation spectrometry were used to evaluate...
Resource Type:: Dissertation
Full Text:: Lawrence F. Small A simplified autoradiographic method for estimating species- specific phytoplankton

The knowledge base and instructional practices of two highly qualified experienced secondary mathematics teachers

Creator:: Beauchman, Molly Laverne Taylor
Abstract:: The purpose of this study was to investigate the knowledge base and instructional practices of two highly qualified experienced secondary mathematics teachers within the context of their classrooms during a unit in a geometry class. Data collected from interviews, classroom observations, pre and post-observation questionnaires, and detailed analyses of several...
Resource Type:: Dissertation
Full Text:: Experienced Secondary Mathematics Teachers Abstract approved: Redacted for Privacy Margaret L. Niess The

The influence of phytoplankton on ocean color spectra

Creator:: Mueller, James L.
Resource Type:: Dissertation
Full Text:: ) Title: THE INFLUENCE OF PHYTOPLANKTON ON OCEAN COLOR SPECTRA Abstract approved: Robert L. Smith

Long-term fertilizer input influences total and bioavailable metal in agricultural soils and crops

Creator:: Pérez, Angela L.
Abstract:: Protection of the quality and integrity of food supplies is of global concern. Crops can accumulate non-nutritive and sometimes toxic metals and metalloids. Accumulated metals/metalloids can come in part, from fertilizers, which may contain variable levels of non-nutritive metals or metalloids such as arsenic (As), cadmium (Cd), lead (Pb), nickel...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Angela L. Pérez for the degree of Doctor of Philosophy in Toxicology

A biogeochemical study of manganese in the estuarine zone

Creator:: Flegal, Arthur Russell
Resource Type:: Dissertation
Full Text:: Abstra Lawrence H. Small Robert L. Holton The research involved with this thesis is presented as three

Radiation-induced mutations in sweet cherry, (Prunus avium L.) cvs Napoleon and Bing

Creator:: Saamin, Shaharudin
Resource Type:: Dissertation
Full Text:: : Radiation-induced Mutations in Sweet Cherry (Prunus avium L.) cvs Napoleon and Bing Abstract approved

Structure and geochronology of Pre-Himalayan and Himalayan orogenic events in the Northwest Himalayan, Pakistan, with special reference to the Besham area

Creator:: Baig, Mirza Shahid
Resource Type:: Dissertation
Full Text:: . Fruitful discussions with Dr. R. D. Lawrence, Dr. L. W. Snee, Dr. M. Ashraf, Dr. M. N. Chaudhry, Dr. N. A

Experimental taxonomy, 1930-1950 : the impact of cytology, ecology, and genetics on ideas of biological classification

Creator:: Hagen, Joel Bartholemew
Abstract:: During the years between 1930 and 1950 a number of attempts were made to introduce techniques and ideas from cytology, ecology, and genetics into the field of taxonomy. Advocates of this "experimental taxonomy" believed that cytological, ecological, and genetic techniques would provide a rigorous, objective methodology to replace the traditional...
Resource Type:: Dissertation
Full Text:: on Ideas of Biological Classification Redacted for privacy Abstract approved: Paul Lawrence Farber

Modeling and analysis of spur structure of digital-to-time conversion based frequency synthesizers

Creator:: Talwalkar, Sumit A.
Abstract:: Frequency synthesizers are critical components of all communication systems. This thesis considers the issue of undesirable frequency spurs of a relatively recent type of frequency synthesis architecture called digital-to-time conversion (DTC). The DTC-based frequency synthesis architecture has important performance benefits over older frequency synthesizers, such as fast frequency switching, large...
Resource Type:: Dissertation
Full Text:: : S. Lawrence Marple, Jr. Frequency synthesizers are critical components of all communication

Multi-dimensional parametric estimation: two-dimensional sharpening by predictive bandwidth extrapolation and fast algorithms for three dimensional autoregressive estimation

Creator:: Liew, Ji Seok
Abstract:: Achieving sharpened (enhanced detail) features of a multi-dimensional data source using the linear prediction (LP) bandwidth extrapolation (BWE) technique in the transform domain is the main objective of this research. The evolution of sensor technology has provided acquisition scenarios in which the data format is inherently multi-dimensional, including hyperspectral imaging...
Resource Type:: Dissertation
Full Text:: Computer Engineering presented on June 6, 2006. Adviser: Dr. S. Lawrence Marple, Jr. Ji-Seok Liew

Chlordecone impaired biliary excretion : in vivo and in vitro correlates

Creator:: Rochelle, Lori G.
Resource Type:: Dissertation
Full Text:: , Terry L. Miller112 I and Lawrence R. Curtis1/3 1The Toxicology Program, 2Department of Agricultural

Effects of micro-nutrients and major nutrients on the growth and species composition of natural phytoplankton populations

Creator:: Frey, Bruce E.
Abstract:: Large-volume (20-liter) bioassays were carried out in order to assess the effects of major nutrients and micro-nutrients on natural phytoplankton populations in water collected from a site close to the mouth of Yaquina Bay, Oregon. Seven long-term experiments were conducted during the years 1975-1976. A stripping technique employing activated carbon...
Resource Type:: Dissertation
Full Text:: appreciatiye of my advisor, Dr. Lawrence F, Small, for providing the blend of guidance and freedom which have

Water quality modulation of aluminum toxicity to rainbow trout (Oncorhynchus mykiss) : biological and physiological approaches

Creator:: Gundersen, Deke T.
Resource Type:: Dissertation
Full Text:: mykiss): Biological and Physiological Approaches. Abstract approved: Lawrence R. Curtis Aluminum

Assessing mechanisms of immunotoxicity for polycyclic aromatic hydrocarbons in rainbow trout (Oncorhynchus mykiss)

Creator:: Bravo, Claudia F.
Abstract:: During the past 30 years, numerous studies have focused on the toxicities of polycyclic aromatic hydrocarbons (PAH). Laboratory and field studies have helped elucidate the detrimental effects of these chemicals on growth, reproduction and immune response. Polycyclic aromatic hydrocarbons are in the priority list of chemicals to be studied by...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: Lawrence R. Curtis During the past 30 years, numerous studies have focused on the

The distribution and transfer of zinc-65 accumulated from food and seawater by three marine crustaceans

Creator:: Fowler, Scott Wellington
Resource Type:: Dissertation
Full Text:: : Lawrence F. Small Stable element analysis of Euphausia pacifica and Pasiphaea pacifica showed that

Chlordecone (CD), a mixed steroid X receptor (SXR) and estrogen receptor alpha(ERα) agonist, altered hepatic cholesterol (CH) homeostasis and lipoprotein metabolism

Creator:: Lee, Junga
Abstract:: Overtly non-toxic doses of organochlorine (OC) insecticides perturb lipid homeostasis in mice and rats. To increase understanding of how chlordecone (CD), an OC insecticide, modulates cholesterol (CH) homeostasis, we determined the effect of CD pretreatment on the tissue and hepatic subcellular distribution of exogenous [¹⁴C]CH. Corn oil alone or CD...
Resource Type:: Dissertation
Full Text:: approved: Lawrence R. Curtis

Assessment of exposure and response to atmospherically-derived contaminants in U.S. Arctic freshwater fish

Creator:: Allen-Gil, Susan M.
Abstract:: The Arctic has long been considered to be a pristine environment, far from population centers and pollution sources. The detection of synthetic organochlorine compounds in various elements of the Arctic food web has confirmed the global dispersion of pollutants, particularly of persistent compounds such as organochlorines and heavy metals. Levels...
Resource Type:: Dissertation
Full Text:: approved: Lawrence R. Curtis The Arctic has long been considered to be a pristine environment, far

Point and nonpoint source mercury pollution of Oregon Reservoirs

Creator:: Park, Jeong-Gue
Abstract:: Two Oregon reservoirs contaminated by different mercury sources were compared for mercury distribution in sediment and bioaccumulation by fish. The average mercury concentration in the sediment of Cottage Grove reservoir (0.67 ± 0.05 μg/g dry wt) was higher than for Dorena Reservoir (0.12 ± 0.01 μg/g dry wt). Sediment mercury...
Resource Type:: Dissertation
Full Text:: Reservoirs. Abstract approved: Lawrence R. Curtis Two Oregon reservoirs contaminated by different

Thin-skinned tectonics on continent/ocean transitional crust, Sulaiman Range, Pakistan

Creator:: Jadoon, Ishtiaq Ahmad Khan
Abstract:: Surface and subsurface data from the Sulaiman thrust belt show that nearly all the 10 km thick sequence of dominantly platform (>7 km) and molasse strata is detached at the deformation front. These strata thicken tectonically to a minimum of 20 km in the hinterland of the Sulaiman fold belt...
Resource Type:: Dissertation
Full Text:: . Robert D. Lawrence Surface and subsurface data from the Sulaiman thrust belt show that nearly all the

Congener-specific disposition of polychlorinated biphenyls in rainbow trout

Creator:: Foster, Eugene P.
Resource Type:: Dissertation
Full Text:: Disposition of Polychlorinated Biphenyls in Rainbow Trout. Abstract approved: Lawrence R. Curtis Di-ortho

Alterations in mink reproductive physiology following exposure to coplanar and noncoplanar polychlorinated biphenyls (PCBs)

Creator:: Patnode, Kathleen A., 1959-
Abstract:: Female mink (Mustela vison) are highly sensitive to polychlorinated biphenyl (PCB)-induced reproductive impairment. The goal of this research was to develop a better understanding of the mechanism of PCB-induced effects on female mink, mink embryos, and surviving mink kits. Anestrous, juvenile female mink and pregnant, adult mink were exposed to...
Resource Type:: Dissertation
Full Text:: Biphenyls (PCBs). Abstract approved: Lawrence R. Curtis Female mink (Mustela vison) are highly

Mechanisms affecting the bioaccumulation of dietary quinoline by rainbow trout (Salmo gairdneri)

Creator:: Dauble, Dennis D.
Abstract:: Factors that influenced the uptake, storage, and elimination of dietary quinoline by rainbow trout (Salmo gairdneri) were studied to obtain an understanding of the mechanisms affecting the bioaccumulation of dietary contaminants in teleosts. Rainbow trout readily absorbed ¹⁴C-quinoline from pelleted food (1% ration at 138 ug quinoline/g food) and most...
Resource Type:: Dissertation
Full Text:: Lawrence R. Curtis Factors that influenced the uptake, storage, and elimination of dietary quinoline by

Making an aquarium environment interactive : a design research analysis of exhibit design processes

Creator:: Hanshumaker, Bill
Abstract:: The purpose of this study was to investigate the development of an interactive aquarium design motivated by the employment of an innovative technology used in scientific research. The study was informed by research on free-choice learning describing the effects of interactive devices on visitor learning, engagement, and attitudes. The researcher...
Resource Type:: Dissertation
Full Text:: Lawrence B. Flick The purpose of this study was to investigate the development of an interactive

Energy utilization by young grass carp fed different diets

Creator:: Cai, Zhengwei
Abstract:: Effects of diet on food energy utilization by grass carp fed aquatic plants or formulated diets with varied lipid sources and levels are presented in three manuscripts. Significant effects of diet on food consumption, digestion, growth and muscle fatty acid (FA) composition of fingerling diploid grass carp fed aquatic macrophytes...
Resource Type:: Dissertation
Full Text:: YOUNG GRASS CARP FED DIFFERENT DIETS Redacted for privacyAbstract approved: Lawrence R. Curtis

Effects of ultraviolet-B radiation on marine phytoplankton

Creator:: Behrenfeld, Michael Joseph
Abstract:: Global increases in ultraviolet-B radiation (UVBR:290- 320 nm) resulting from decreases in stratospheric ozone concentration have the potential to alter marine primary production and affect global climate and marine trophic dynamics. Effects of UVBR on phytoplankton carbon fixation were determined from open ocean exposure studies conducted off the coast of...
Resource Type:: Dissertation
Full Text:: II Committee member: program manager. Committee member: program manager. Lawrence F. Small Major

Vitellogenesis : a biomarker for estrogenic and antiestrogenic effects of organochlorines in rainbow trout

Creator:: Donohoe, Regina M.
Abstract:: Persistent organochlorines (OCs) bioaccumulate in aquatic biota and potentially impair reproduction via endocrine disruption. The present research evaluated estrogenic effects of the OCs, chlordecone (CD) and o,p'-DDT/DDE, and the antiestrogenicity of 3,4,5,3',4',5'-hexachlorobiphenyl (345-HCB) in juvenile rainbow trout, utilizing vitellogenesis as a biomarker. Vitellogenesis, estrogen regulated hepatic production of the yolk...
Resource Type:: Dissertation
Full Text:: . Lawrence R. Curtis Persistent organochlorines (OCs) bioaccumulate in aquatic biota and potentially impair

Fast algorithms and applications for multi-dimensional least-squares-based minimum variance spectral estimation

Creator:: Wei, Lin
Abstract:: The main contributions of this thesis are the development and application of four computationally efficient solutions for least-squares-based (LS-based) minimum variance spectral estimation (MVSE). They are: (1) fast computational solution for the 1-D covariance LS-based MVSE, (2) fast computational solution for the 1-D modified covariance LS-based MVSE, (3) fast computational...
Resource Type:: Dissertation
Full Text:: Advisor: Dr. S. Lawrence Marple, Jr. AN ABSTRACT OF THE THESIS OF Lin Wei for the degree of Doctor

Developmental grazing capabilities of Pseudocalanus sp. and Acartia clausi (CI to adult)

Creator:: Dexter, Barbara Lynne
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Barbara L. Dexter for the degree

The feeding behavior of two populations of the estuarine copepod Acartia clausi

Creator:: O'Connors, Harold Blane Jr
Resource Type:: Dissertation
Full Text:: and possibly used as mdi- cator organisms. L 7 EXPERIMENTAL MATERIALS Copepods Adult females

Temperature-modulated 7,12-dimethylbenz(a)antheracene carcinogenicity in rainbow trout

Creator:: Zahr, Camille Reda
Abstract:: Temperature influences the incidence of chemically induced cancer in fish, with warmer temperatures being associated with higher cancer incidence. The mechanisms of temperature-modulated chemical carcinogenesis in fish, however, have not been described in detail. Therefore, one primary objective of this study was increased understanding of how temperature-modulated genotoxicity of 7,12-...
Resource Type:: Dissertation
Full Text:: -, Dimethylbenz(a)anthracene Carcinogenicity in Rainbow Trout. Abstract approved: Lawrence R. Curtis

Seasonal dynamics and allometric considerations of feeding and food processing for macrozooplankton in the northeast Pacific Ocean

Creator:: Ellis, Steven G.
Resource Type:: Dissertation
Full Text:: . fit to these data, using total body length (L) as the independent variable. This equation explained

Kinematic and cyclostationary parameter estimation for co-channel emitter location applications

Creator:: Ohm, David R.
Abstract:: The problem of locating a signal source, or an emitter, has many civilian and military applications, such as communication regulations enforcement, military reconnaissance, and search-and-rescue operations. Many of the most widely used emitter location methods rely on the accurate and robust estimation of the differential time delay, or time-difference-of-arrival (TDOA),...
Resource Type:: Dissertation
Full Text:: Abstract approved: S. Lawrence Marple Jr. The problem of locating a signal source, or an emitter, has

Aspects of the Nature of Engineering for K-12 Science Education : A Delphi Study

Creator:: Hartman, Brian D.
Abstract:: Recent state and national standards have increased the interest in engineering at the K-12 level. Science standards, in particular, have begun to make the case for including engineering throughout the K-12 scope of study. Despite the increased attention to engineering, the characteristics and uniqueness of the field of engineering are...
Resource Type:: Dissertation
Full Text:: : ____________________________________________________________________ Randy L. Bell Lawrence B. Flick Recent state and national

Examining Middle School Students’ Knowledge and Beliefs of Earthquake and Tsunami

Creator:: Lownsbery, Douglas S.
Abstract:: Recent reports at the state, national, and international level have called for increased earthquake and tsunami education to increase knowledge of the causes of these hazards, risks from these hazards, and preparedness measures to reduce risk and increase resilience to these hazards. One recommended approach to meet this need is...
Resource Type:: Dissertation
Full Text:: :_________________________________________________ Lawrence B. Flick Recent reports at the state, national, and international level have

Determination of chlorinated hydrocarbons by response factor calibration

Creator:: Ramus, Terry Lee
Resource Type:: Dissertation
Full Text:: approved: Lawrence C. Thomas A new method is developed and evaluated in this thesis research for

Collegiate student's epistemologies and conceptual understanding of the role of models in precalculus mathematics : a focus on the exponential and logarithmic functions

Creator:: Melendy, Robert F.
Abstract:: Collegiate student's conceptual distinctions of what define a mathematical and a physical model seems to be affected by the epistemological beliefs they hold about this knowledge. These beliefs seem to influence student's thinking and reasoning as they embark on problem solving activities in collegiate mathematics. Student's epistemological beliefs of mathematical...
Resource Type:: Dissertation
Full Text:: : _________________________________________________________________ Lawrence B. Flick Collegiate student’s conceptual distinctions of what define a

Trace metals in phytoplankton from an area of coastal upwelling

Creator:: Pequegnat, John Eugene
Abstract:: Short-term changes in the distribution, surface to 10 meters, of phytoplankton-associated trace metals (Fe, Mn, Cr, Zn, Co, Ni, and Cu) were studied in the near-shore waters off Humboldt Bay, California, through the summer of 1971. The depth distribution of phytoplankton-associated trace metals was related to local hydrography. During periods...
Resource Type:: Dissertation
Full Text:: approved: Lawrence F. Small Short-term changes in the distribution, surface to 10 meters, of

The use of NAEP data in a state context

Creator:: Ha, Jung-Mi
Abstract:: The National Assessment of Educational Progress (NAEP) has measured the condition and progress of education since 1969 to provide information on performance of American students in core subjects to policymakers, educators, and the public. Yet, there has been a perception that theses federal resources are under utilized. An analysis of...
Resource Type:: Dissertation
Full Text:: approved: __________________________________ Lawrence B. Flick The National Assessment of

How does a collaborative community affect diverse students' engagement with an open source software project : a pedagogical paradigm

Creator:: Morgan, Becka S.
Abstract:: Open Source Software (OSS) communities are homogenous and their lack of diversity is of concern to many within this field. This problem is becoming more pronounced as it is the practice of many technology companies to use OSS participation as a factor in the hiring process, disadvantaging those who are...
Resource Type:: Dissertation
Full Text:: : ______________________________________________ Lawrence B. Flick Open Source Software (OSS) communities are homogenous and their lack of

Analyzing explicit teaching strategies and student discourse for scientific argumentation

Creator:: Park, Young-Shin
Abstract:: Scientific inquiry in K-12 classrooms tends to be procedural, lacking opportunities for students to gain understanding of how scientific knowledge is constructed through reflection, debate, and argument. Limited opportunity to develop scientific argumentation skills prevents students from practicing the scientific thinking needed to understand the nature of scientific knowledge and...
Resource Type:: Dissertation
Full Text:: professor, Dr. Lawrence B. Flick, for his endless encouragement, enthusiasm, guidance, creative ideas

Teratogenicity of coniine, a nicotinic alkaloid from Conium maculatum (poison hemlock)

Creator:: Forsyth, Carol S.
Resource Type:: Dissertation
Full Text:: Philosophy Completed August 20, 1993 Commencement June 1994 APPROVED: Lawrence R. Curtis

The copper sensitivity of Oregon coastal phytoplankton

Creator:: Riedel, Gerhardt Frederick
Resource Type:: Dissertation

William Keith Brooks (1848-1908) : a case study in morphology and the development of American biology

Creator:: Benson, Keith Rodney
Abstract:: The major historical studies that have examined American biology have emphasized the development of experimental biology at the end of the nineteenth century. In this characterization, the descriptive branch of biology has often been treated as less than important and, in several cases, as a hindrance in the application of...
Resource Type:: Dissertation
Full Text:: AMERICAN BIOLOGY Abstract approved: Redacted for Privacy Paul Lawrence Farber The major historical

Bridging the gap : the problem of vertebrate ancestry, 1859-1875

Creator:: Beeson, Roberta Jane
Abstract:: Determination of the Vertebrate pedigree was a particularly enigmatic problem for evolutionary morphologists of the early post-Darwinian period. At that time, practically no characteristics were known by which the Vertebrates could be linked to any of the other animal groups. Up to the 1850's, most research in embryology and anatomy...
Resource Type:: Dissertation
Full Text:: PROBLEM OF VERTEBRATE ANCESTRY, 1859-1875 Abstract approved: Redacted for Privacy Paul Lawrence Farber

Karl Jordan : a life in systematics

Creator:: Johnson, Kristin Renee
Abstract:: Karl Jordan (1861-1959) was an extraordinarily productive entomologist who influenced the development of systematics, entomology, and naturalists' theoretical framework as well as their practice. He has been a figure in existing accounts of the naturalist tradition between 1890 and 1940 that have defended the relative contribution of naturalists to the...
Resource Type:: Dissertation
Full Text:: Jordan: A Life in Systematics Abstract approved: Paul Lawrence Farber Karl Jordan (1861-1959) was an

Employment experience and job satisfaction of new mothers

Creator:: Wolfe, Jerri L.
Abstract:: In spite of the high family demands associated with having an infant, an increasing number of women are choosing to retain close ties to the labor force during this period. This study explored the employment adjustments and job satisfaction of a group of women who became mothers for the first...
Resource Type:: Dissertation
Full Text:: Wolfe, Jerri L. AN ABSTRACT OF THE THESIS OF Jerri L

Cyclization of organolithium and -zirconium compounds ; Rearrangements of selected anionic compounds in highly disassociative solvents

Creator:: Bass, Lawrence W.
Abstract:: Intramolecular cyclization of organometallic compounds represents a promising tool for synthesis. The reaction involves exothermic consumption of intramolecular double bonds via insertion into a carbon metal sigma bond. This represents an intramolecular example of the reaction type responsible for metal catalyzed polymerization of olefins. Organolithium reagents were found to cyclize...
Resource Type:: Dissertation
Full Text:: July 11, 1979 Title: PART L CYCLIZATION OF ORGANOLITHIUM AND ZIRCONIUM COMPOUNDS. PART II

Absorption of chlorophenols on granular activated carbon

Creator:: Yang, Maoyu
Abstract:: Studies were undertaken of the adsorption of chlorinated phenols from aqueous solution on granular activated carbon (Filtrasorb-400, 30x40 mesh). Single-component equilibrium adsorption data on the eight compounds in two concentration ranges at pH 7.0 fit the Langmuir equation better than the Freundlich equation. The adsorptive capacities at pH 7.0 increase...
Resource Type:: Dissertation

Thermal [pi]-route rearrangement of 4-cycloheptane-1-methyl acetate

Creator:: Schick, Lawrence Edward
Abstract:: Pyrolysis of 4-cycloheptene-l-methyl acetate under flow conditions at 285° gives only rearranged bicyclic acetates and hydrocarbons rather than the anticipated simple elimination product methylenecyclohept- 4-ene. These rearranged acetates have the same structures and are formed in virtually the same relative percentages as those observed in the "π- route" solvolysis of...
Resource Type:: Dissertation
Full Text:: -methyl acetate AN ABSTRACT OF THE THESIS OF Lawrence Edward Schick for the degree of Doctor of

Some aspects of currents in Long Island Sound

Creator:: Swanson, R. Lawrence (Robert Lawrence), 1938-
Abstract:: Current observations were obtained at three locations forming a cross section along 70°34'W longitude in Long Island Sound. Fifteen days of data were selected from each series so that nearly simultaneous observations were used in the analysis. Elementary statistics were computed for the data prior to performing a least squares...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Robert Lawrence Swanson (Name

A study of professional education competencies of public school district vocational education leaders

Creator:: Baltimore, Jimmy Ray
Abstract:: The Purposes of the Study The primary purpose of this study was to identify common professional education competencies needed by public school district vocational education leaders. Other purposes were to (1) determine if significant differences existed in vocational education leadership competencies among respondents as categorized by state, type of position...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Abstract approved: Sylvia L. Lee The Purposes of the Study The primary purpose of

College student novice spreadsheet reasoning and errors

Creator:: Hoag, James A.
Abstract:: The spreadsheet has become a common technology tool and is now a predominant form of end-user programming. Some of the same features that make spreadsheets excellent tools for ad-hoc development can introduce errors into the final product. Although a variety of research has been performed investigating methods to detect errors...
Resource Type:: Dissertation
Full Text:: Margaret L. Niess The spreadsheet has become a common technology tool and is now a predominant form

Thai preservice middle school mathematics teachers' subject matter knowledge and knowledge of students' conceptions of division of rational numbers with respect to their classroom practices

Creator:: Singmuang, Charuwan
Abstract:: The study investigated the impact of Thai preservice middle school mathematics teachers' knowledge of subject matter and of students' conceptions of division of rational numbers with respect to their classroom practices in a teaching environment controlled by a required national curriculum. Four preservice teachers were selected with different knowledge of...
Resource Type:: Dissertation
Full Text:: Division of Rational Numbers with Respect to Their Classroom Practices. Abstract appr &lrgaret L. Niess

Potassium-supplying power of certain major Oregon soils

Creator:: Alban, L. A. (Lawrence Arthur), 1922-1965
Resource Type:: Dissertation
Full Text:: POTASSIUM-SUPPLYING POWER 0F CERTAIN MAOR OREGON SOILS by LAWRENCE ARTHTJR ALBAN A Th3IS submitted

The use of resonant transfer for combined switching and multiplexing

Creator:: Getgen, Lawrence E.
Abstract:: This paper presents a study of the resonant transfer of energy between filters with the viewpoint of applying this technique to communication systems. A summary of the existing filter designs for this application is made. This summary shows that a requirement common to all these filters is that the impulse...
Resource Type:: Dissertation
Full Text:: multiplexing AN ABSTRACT OF THE THESIS FOR -LAWRENCE E. GETGEN for the DOCTOR OF PHILOSOPHY (Name) (Degree

Communication-Efficient Secure Two-Party Computation From Minicrypt and OT

Creator:: Roy, Lawrence
Abstract:: Secure two-party computation (2PC) is the task of performing arbitrary calculations on secret inputs provided by two parties, while maintaining secrecy if at least one party is honest. 2PC has been applied to privacy-preserving record linkage and machine learning, in areas such as medicine where maintaining privacy is crucial. One...
Resource Type:: Dissertation
Full Text:: Computation From Minicrypt and OT AN ABSTRACT OF THE DISSERTATION OF Lawrence Roy for the degree of Doctor

The interaction of formulation parameters with chemical structure and adhesive performance of phenol-formaldehyde resins

Creator:: Gollob, Lawrence
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Lawrence Gollob for the degree of

A comparison of intact protein with amino acid mixtures in protein nutrition

Creator:: Snippper, Lawrence Paul
Resource Type:: Dissertation
Full Text:: LAWRENCE PAUL SNIPPER A THESIS submitted to OREGON STATE COLLEGE in partial fulfillment of the

The effect of temperature and hydrostatic pressure on protein, ribonucleic acid and deoxytibo-nucleic acid synthesis by Vibrio marinus, an obligate psychrophile

Creator:: Albright, Lawrence John
Abstract:: The marine psychrophilic bacterium Vibrio marinus MP-4 possessed a maximum temperature and hydrostatic pressure of 20 C and 425 atm for growth. The effects of temperatures of 21 and 25 C and hydrostatic pressures of 200, 400, 500, and 1,000 atm on protein, RNA and DNA synthesis by V. marinus...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Lawrence John Albright for the Doctor of Philosophy (Name of student

Terminal methylation reactions in Saccharomyces cerevisiae

Creator:: Botsford, James Lawrence
Abstract:: A cell-free system for assessing the role of S-adenosyl-methionine in the methylation of homocysteine deriving the methyl group from serine has been developed. No role for S-adenosyl-methionine could be shown in the in vitro reaction The enzyme serine transhydroxymethylase has been studied in crude and partially purified cell extracts. Evidence...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES LAWRENCE BOTSFORD, JR. for the (Name) in MICROBIOLOGY

Investigation of the circadian rhythm of locomotion in the rough-skinned newt, Taricha granulosa

Creator:: Briggs, Jeffrey Lawrence
Abstract:: Over 56,000 hours of locomotor activity of Taricha granulosa were recorded using two types of low cylindrical plastic monitoring chambers. This species shows distinct rhythms of activity under normal day-night cycles, shortened day-night cycles, constant darkness (DD) and constant light (LL). The rough-skinned newt is day active and crepuscular. I...
Resource Type:: Dissertation
Full Text:: rough-skinned newt, Taricha granulosa AN ABSTRACT OF THE THESIS OF JEFFREY LAWRENCE BRIGGS for the

An analysis of a computer-assisted laboratory method of instruction in elementary business statistics

Creator:: Varin, Dennis Lawrence
Abstract:: This was an experimental study designed to compare the effectiveness of computer-assisted laboratory instruction to teacher-assisted laboratory instruction based on student achievement in Elementary Business Statistics. Computer-assisted laboratory materials and an Elementary Business Statistics achievement test were evaluated. Procedures The setting of this experiment was at Southern Oregon State College,...
Resource Type:: Dissertation
Full Text:: THESIS OF DENNIS LAWRENCE VARIN for the degree of DOCTOR OF PHILOSOPHY in EDUCATION(Business Education

Simulation and field validation of heat and water flow during soil freezing and thawing

Creator:: Pikul, Joseph Lawrence
Abstract:: Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...
Resource Type:: Dissertation
Full Text:: during soil freezing and thawing AN ABSTRACT OF THE THESIS OF Joseph L. Pikul Jr. for the degree of

The chemical nature of the extractives from white fir bark Abies concolor (Engelm.) Gord

Creator:: Hergert, Herbert Lawrence
Resource Type:: Dissertation
Full Text:: 1954 IPFBOTED I Redacted for Privacy Profcsgor of Chcnlotry In Ch*gc of l{eJor Redacted for

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Creator:: Kough, John Lawrence
Abstract:: The colonization of several species of plants by vesicularar-buscular mycorrhizae (VAM) was studied to determine how host, soil, or symbiont factors interacted to enhance growth of the host plant. Seedlings of two species of the Cuppressaceae and two of the Taxodiaceae formed VAM; colonization significantly improved growth. This response to...
Resource Type:: Dissertation
Full Text:: -arbuscular mycorrhizal fungi to plant growth response AN ABSTRACT OF THE THESIS OF John Lawrence Kough for

Dispersion of the Columbia River plume based on radioactivity measurements

Creator:: Frederick, Lawrence Churchill
Abstract:: An investigation has been made of several physical parameters of the effluent plume of the Columbia River as it enters the Pacific Ocean. Radioactive material in trace amounts enters the Columbia River from the Hanford nuclear reactors at Richland, Washington. One of these nuclides, chromium -51, has been used to...
Resource Type:: Dissertation
Full Text:: Weathers for Lawrence Churchill Frederick L ACKNOWLEDGMENTS The author is indebted to a host of

Differentiating the impact of literacy and language skill development on reading acquisition : an exploratory study

Creator:: Pope, H. Lawrence
Abstract:: This study examined relationships between pre-tested early literacy skills and post-tested reading achievement in 52 kindergarten and 39 first-grade children. An archival data set was available for statistical analysis. Data analysis was completed in three stages: Participants' entry-level literacy and language scores were compared on two Assessment of Literacy and...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Haze Lawrence Pope for the degree of presented on Doctor

Secondary school counselors and their job in the United States

Creator:: Hitchcock, William Lawrence
Resource Type:: Dissertation
Full Text:: . J. L. Sherburne, Dr. W. U. Crooks, and lir. S. Es Milliamson. They very generously gave of their

A method of calculating non-steady compressible flow in a propulsive duct

Creator:: Winiarski, Lawrence Decker
Abstract:: A numerical technique is presented for solving the gas dynamics of a pulsating combustor. The computer solution which is developed follows directly from the fundamental conservation laws applied to discrete volumes rather than attempting either to finite difference the resulting partial differential equations, or to apply the Method of Characteristics....
Resource Type:: Dissertation
Full Text:: propulsive duct AN ABSTRACT OF THE THESIS OF Lawrence Decker Winiarski for the DOCTOR OF PHILOSOPHY (Name

A comparison of the perceptions of educational personnel toward trade and industrial teacher certification procedures in selected states

Creator:: Denny, Lawrence
Abstract:: Purpose of the Study: The main focus of this study was to compare the perceptions of district superintendents, vocational administrators and trade and industrial teachers toward vocational teacher certification procedures and ramifications. The population consisted of 225 respondents randomly selected from 15 states. The following hypotheses were tested: 1. There...
Resource Type:: Dissertation
Full Text:: THESIS OF Lawrence Benjamin Denny for the degree of Doctor of Education in Vocational Education

Perceived needs of special education as identified by school personnel in small rural school districts in six eastern Oregon counties

Creator:: Veal, Lawrence Lyman
Abstract:: The purpose of the study, which was conducted in 33 school districts in six Eastern Oregon counties, was threefold: 1. To assess the perceived needs of administrators, counselors and/or specialists and special teachers of the handicapped and disadvantaged, to determine special education needs in small rural school districts; 2. To...
Resource Type:: Dissertation
Full Text:: THESIS OF Lawrence Lvman Veal for the degree of Doctor of Education in Education presented on April 11

The relationship between competitive recreation and personal adjustment

Creator:: Klar, Lawrence R.
Resource Type:: Dissertation
Full Text:: personal adjustment AN ABSTRACT OF THE THESIS OF LAWRENCE RONALD KLAR, JR. for the DOCTOR OF PHILOSOPHY

A landscape-scale assessment of plant communities, hydrologic processes, and state-and-transition theory in a Western juniper dominated ecosystem

Creator:: Petersen, Steven Lawrence
Abstract:: Western juniper has rapidly expanded into sagebrush steppe communities in the Intermountain West during the past 120 years. This expansion has occurred across a wide range of soil types and topographic positions. These plant communities, however, are typically treated in current peer-reviewed literature generically. The focus of this research is...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Steven L. Petersen for the

Sources, dispersal, and contributions of fine-grained terrigenous sediments on the Oregon and Washington continental slope

Creator:: Krissek, Lawrence A.
Abstract:: Holocene hemipelagic deposition of terrigenous silts and clays dominates sedimentation on most of the Oregon and Washington continental slope. The sources of these sediments, the mechanisms causing sediment dispersal, and the relative contributions of the various continental sources to the marine deposits have been investigated using quantitative mineral and geochemical...
Resource Type:: Dissertation
Full Text:: AN ABSThACT OF THE THESIS OF Lawrence A. Krissek for the degree

Comparisons of self-actualization among three groups of college women

Creator:: Matthews, Lawrence Joseph
Resource Type:: Dissertation
Full Text:: College Women AN ABSTRACT OF THE THESIS OF Lawrence Joseph Matthews for the degree of Doctor of

The effects of a summer institute for cultural awareness on the measured level of self-actualization of experienced teachers

Creator:: Ayers, Lawrence W.
Abstract:: Purpose of the Study The purpose of this investigation was two fold: (1) to determine the effects of a Summer Institute for Cultural Awareness upon the self-actualization of experienced teachers from four separate high schools, and (2) to determine the success of the Summer Institute for Cultural Awareness in terms...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF LAWRENCE W. AYERS, JR. for the

An experiment to ascertain the effect of maturation and educational experience on Air Force Officer Qualifying Test scores

Creator:: Fross, Horton Lawrence
Abstract:: The United States Air Force uses a test constructed by Air Force personnel to test all individuals seeking entrance into Air Force officer training programs. This test is titled "The Air Force Officer Qualifying Test" (AFOQT). There are two major classes of candidates who are required to take the test:...
Resource Type:: Dissertation
Full Text:: LAWRENCE FROSS for the DOCTOR OF PHILOSOPHY (Name) (Degree) in EDUCATION presented on August 6 , 1969

Influence, techniques, and therapeutic change : a study of the relative efficacy of the common components in psychotherapy

Creator:: Lynagh, Ian Lawrence
Abstract:: This study examines the relative efficacies of the specific and non-specific factors in psychotherapy. Psychotherapy is conceptualized as having three common components: the problem component whose essence is low self-esteem; the interactional component which induces change through social influence; and the treatment component which elicits change through therapeutic techniques. The...
Resource Type:: Dissertation
Full Text:: Ian Lawrence Lynagh for the degree of Doctor of Philosophy in Counseling presented on 1st February

Measurement of outcrossing in Lolium spp. as determined by fluorescence tests

Creator:: Copeland, L. O. (Lawrence O.), 1936-
Abstract:: Research was conducted to determine the distance and amount of outcrossing between varieties of highly fluorescent annual ryegrass (Lolium multiflorum Lam.) and low-fluorescing perennial ryegrass (Lolium perenne L.). Studies were conducted under both spaced-plant and seed production field conditions. Fluorescence tests on seed collected from low-fluorescing perennial ryegrass at successive...
Resource Type:: Dissertation
Full Text:: fluorescence tests AN ABSTRACT OF THE THESIS OF Lawrence Odell Copeland for the (Name of student) in

Investigating tumor suppression in triploid trout

Creator:: Ford, Bryan L.
Abstract:: Previous work (Thorgaard, G. H. et al., Aquatic Toxicology 46:121-126, 1999) showed triploid rainbow trout (0. mykiss) given embryonic carcinogen bath exposures had significant reduction of induced tumors relative to diploids. In the present study, trout were made triploid by thermal shock after fertilization. At age of 5 months they...
Resource Type:: Dissertation

Chlordecone pretreatment promoted subcellular distribution of scavenger receptor class B type II to murine hepatic microsomes ; mass spectrometry detected hepatic soluble cholesterol binding proteins and comparison of protein iTRAQ ratios using ESI QTOF and MALDI TOF/TOF

Creator:: Scheri, Richard C.
Abstract:: Chlordecone belongs to the class of persistent organochlorine pesticides that are remarkably resistant to environmental degradation. Even though their use was banned in the United States in 1978, these compounds can still be detected in both humans and wildlife throughout the world. Previous work has shown that the pretreatment of...
Resource Type:: Dissertation
Full Text:: Abstract approved: __________________________________________________________________ Lawrence R

Stratigraphy and sedimentology of the Cretaceous Nanaimo group, Saltspring Island, British Columbia

Creator:: Hanson, William Bruce
Abstract:: Clastic sedimentary rocks of the Nanaimo Group on Saltspring Island, British Columbia are Late Cretaceous in age, overlie a deformed and intruded Paleozoic basement complex, and consist of eight formations. These eight formations, from oldest to youngest, are the Comox, Haslam, Extension-Protection, Cedar District, De Courcy, Northumberland, Geoffrey, and Spray...
Resource Type:: Dissertation

Middle school students' mathematical dispositions in a problem-based classroom

Creator:: Katwibun, Duanghathai
Abstract:: The purpose of this study was to describe middle school students' mathematical dispositions in a problem-based learning [PBL] classroom. Eight volunteer students from one 6th grade mathematics classroom participated in this study. The curriculum used was the Connected Mathematics Project [CMP]. The main sources for data collection were classroom observations,...
Resource Type:: Dissertation

Succession and certain adaptive features of plants native to the sand dunes of the Oregon coast

Creator:: Kumler, Marion Lawrence, 1941-
Abstract:: The vegetation of the Oregon coast is characterized by a variety of stages of plant succession which are repeated widely throughout the sand dune area. During the years from 1960 to 1963 the gradation of upland sand dune succession was studied on 48 plots within a 150 mile section of...
Resource Type:: Dissertation
Full Text:: native to the sand dunes of the Oregon coast AN ABSTRACT OF THE THESIS OF MARION LAWRENCE KUMLER for

Investigating science identity and motivation constructs in undergraduate chemistry through novel instrument development

Creator:: Wolfe, Teresa M.
Abstract:: The purposes of this study were to: 1) determine in what ways incorporating active engagement into a traditional lecture chemistry course contributed to students' science identity and their motivation to learn the science, and 2) determine how the development of a science identity could be measured through the use of...
Resource Type:: Dissertation
Full Text:: ! ! ! ! Lawrence B. Flick The purposes of this study were to: 1) determine in what ways incorporating active

Respiratory strategies and associated exchange epithelia as determinants on contaminant uptake in aquatic insects

Creator:: Buchwalter, David B.
Abstract:: Aquatic insects are used extensively to evaluate water quality. Despite their widespread use as indicator organisms, relatively little is known about the organismal characteristics that determine sensitivity differences to individual and multiple stressors. Insects have evolved several respiratory strategies that range from breathing atmospheric air to utilizing dissolved oxygen in...
Resource Type:: Dissertation
Full Text:: . CONTRIBUTION OF AUTHORS Each of these manuscripts has been co-authored by Dr. Lawrence R. Curtis and Dr

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