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Nuclear Magnetic Resonance Investigation Of The Interaction Of Heme Binding Proteins With Snivprotoporphyrin Ix And Heme: Structure And Conformational Changes Of Myoglobin And Hemopexin, Ruba Saba Deeb

Dissertations and Theses

Tin protoporphyrin IX (SnPP) is currently under investigation for the treatment of hyperbilirubinemia. The study of the complex between SnPP and equine myoglobin (EqMb) by ¹H and ¹¹⁹Sn nuclear magnetic resonance spectroscopy (NMR) can be viewed as a general model for SnPP interaction with hemoproteins. The complex formed from the equilibrium mixture of SnPP and EqMb, SnPP•EqMb, was found to have essentially the same porphyrin-binding pocket as EqMbCO and SwMbCO, including the same porphyrin orientation in the major form of the two species. ¹¹⁹Sn NMR spectroscopy was used to demonstrate that the proximal His(93)F8-metal coordination is likely to be intact …

A Case Study Of The Acceptance Of The Tacoma-Pierce County Needle Exchange Program By Three Diverse Groups: Law Enforcement Personnel, Health Department Officials, And Program Clients (I.E., Intravenous Drug Users), Lauren Sue Ibrahim

Dissertations and Theses

Legitimate and underground needle exchange programs, specifically targeted for intravenous drug users (IVDUs) (i.e., currently the second largest risk group in the AIDS epidemic), have emerged in various locales in a desperate attempt to change their drug use practices and behaviors associated with the transmission of HIV-1/AIDS. This study focuses on one such program, the Tacoma-Pierce County Needle Exchange Program, in which the pioneering efforts of a private individual are provided, the manifestations of public entrepreneurism are examined, and in which various attributes of program acceptance are identified and explored. An introductory and exploratory case study approach is the research …

Urbanization In A Peripheral Capitalist State: A Guyana Case Study, Wazir Ahmad Ishmael

Dissertations and Theses

This research proposes to examine the process of urbanization in Guyana, South America. In particular, the objectives of this research are threefold. The first is to identify, describe, and evaluate some of the historic and current causes of urban growth and urbanization which have taken place in a peripheral capitalist state that was under the plantation mode and that illustrates a legacy of "uneven development." The second objective is to attempt to assess planning responses, through attempts by the state to formulate policies to deal more effectively with urbanization. And the third objective is to contribute to a dialogue between …

Nuclear Magnetic Resonance Study Of Antigen-Antibody Complexes, Including Sequence Specific Assignments And Structural Analysis Of Neurophysin As An Antigen Model, Elisar Jamil Barbar

Dissertations and Theses

The interaction between molecules is essential in a wide range of biological processes. A detailed knowledge of these interactions is necessary for understanding these processes. Among the systems that involve important interactions is the immune system. NMR spectroscopy has a large number of spectral parameters that were used in this work to study antibody-antigen interactions. These same parameters were also used to begin a structural analysis of a medium-sized protein, neurophysin, that has important interactions with neurohormones, and served here as a model antigen. A set of ligands differing in size and charge was designed and used to probe the …

Vision, Interpersonal Orientation And Personal Values In Elementary School Principals, Allan Leslie Weston

Dissertations and Theses

This study looked at possible relationships which exist between three personal characteristics variables believed to be associated with effective leadership in elementary schools. The three variables were (1) Principal Vision, (2) Principal Interpersonal Orientation and, (3) Principal Personal Values. The relationship between selected teacher, principal and school demographic variables and teacher's perceptions of their principal's vision was also explored.

Data were collected from 51 principals and 841 teachers in elementary schools from 10 school districts in the Portland, Salem and Vancouver metropolitan areas. Teachers were asked to score their perceptions of their principal's vision on the School Vision Inventory. The …

A Validation Study Of Components Necessary For The Professional Development Of School Business Officials, William Henry Dierdorff Iii

Dissertations and Theses

A key element of a profession is a formalized training program. School business officials in the United States and Canada face dynamic and complex issues without a standardized training program. This study surveyed a representative group to validate a curriculum model developed by a 1988 task force funded by the Danforth Foundation. Another objective was to increase awareness of the need for an effective training program for school business officials and the most appropriate sources to implement that. As indicated in the analysis, all components of the ASBO/Danforth model were considered important to the parties surveyed. There was no single …

Perceived Administrative Support For Teachers Of Urban At-Risk Students, Betsy Bennet-Costi

Dissertations and Theses

The purpose of this study was to investigate effective administrative support for successful teachers of urban at-risk students. The main difficulty in studying administrative support is that it comes in so many ways. Johnson’s (1990) theory of workplace variables and Butterworth's (1981) social exchange theory were the basis for this study. Failures of at-risk students threaten the well being of public schools and have become a generally recognized social problem of national priority. This study explores how principals act to influence the success of teachers as they work with at-risk students. It is grounded in the following four assumptions: 1. …

Attitudes, Motivations And Expectations Of Students And Instructors In An Intensive University Esl Summer Session, Ronald Andrew Ragsdale

Dissertations and Theses

All international students have specific motivations and expectations when learning English as a Second Language (ESL) in the United States, and recognizing the diversity of those motivations and expectations is the first step toward providing successful second language instruction. This study was designed to elicit the attitudes, expectations and motivations of two unique groups of students studying in the same classes in an ESL summer session at Portland State University (PSU), the preconception of the instructors, and the impressions and evaluations of the program upon its completion by the students, instructors, coordinators and administrators.

A successful curriculum can only be …

State Policy And Public Administration Impacts On An Emerging Industry: The Wine Industry In Oregon And Washington, Anthony Gene White

Dissertations and Theses

Oregon and Washington state administrative agencies’ impacts on economic development within the winery industry are examined. Policy cluster development appears to impact economic development programs differently in each state. The wine industry has flourished in both states since 1970, yet Oregon with 60% of Washington's population supports 10% more wineries. Oregon winery numbers continue to grow while Washington’s seem to have leveled out. From the literature and industry interviews, three variables were selected to be tested for their industry impacts:

1. domestic consumption (state population times wine industry per-capita consumption);
2. market domination (estimated from interviews and proportional market share); and
3. net …

An Implementation Analysis Of The Water Resources Development Act Of 1986, James Joseph Rich

Dissertations and Theses

Implementation research, an area once largely ignored in favor of policy design and impact assessment, now constitutes a significant portion of the policy analysis literature. One of the key issues addressed by the theory building portion of that literature is the necessity of precisely identifying implementation variables, conditions, or actions that measurably contribute to the success or failure of implementation efforts over a broad range of policies and programs, and to then suggest some order of significance. In order to test the validity of a variable set proposed by the literature, a multivariate implementation model was employed as the basis …

The Effects Of Rapid Heating And Cooling On The Composition, Structure, And Superconducting Properties Of Bi-Sr-Ca-Cu-O Compounds, Qing Duan

Dissertations and Theses

Bulk and thin film samples of Bi₂₋[subscript x]Pb[subscript x]Sr₂Ca₂Cu₃O[subscript y] compounds were prepared by suitable methods. The thin film and bulk samples were exposed to argon gas at temperatures of about 2000 °C and pressures of about 300 atm. in a ballistic compressor (BC) and then cooled at a rate of about 10⁵ °C/sec. The samples before and after this treatment were examined and compared using a transmission electron microscope (TEM), a scanning electron microscope (SEM), an energy dispersive spectrometer (EDS) , and an x-ray diffractometer (XRD). Resistance and magnetic susceptibility measurements were made to determine changes in superconducting temperature …

Semiconductor P-N Junction Space Charge Region Capacitance, Mohammad Humayun Habib

Dissertations and Theses

The classical capacitance voltage characteristics based on the depletion approximation, is adequate at reverse bias, but introduces errors at high forward bias. Because of its inherent simplicity and compactness this classical depletion model is well studied and widely used in circuit simulators. In this work, a new model for the semiconductor space charge region (SCR) capacitance, based on physical justification, will be derived. This new model takes three input parameters, C0 , Vbi and m, thus eliminating the fitting parameter FC currently used in SPICE. This new model is applicable for any applied voltage and will be compared with the …

Connected Painted Rectangles Experiments In Quantitative Shape And Contrasting Elements, Ann Shiogi

Dissertations and Theses

The thesis consisted of a series of paintings in which the canvases were individually painted in a predetermined way, then arranged and assembled more spontaneously in a final wall construction. Narrow limitations, such as working with only horizontal and vertical compositions and contrasting colors were specified. By working within a method or procedure, and by remaining strict to these guidelines, the ideas inherent in the paintings emerged and were then promoted.

The dominant ideas that developed out of the process of making the paintings were the use of both "found" shapes--found in leftover lengths of support material--and "found" means of …

Speaker Preferences Of Listening Behaviors That Lead To Perceived Listening : A Pre-Condition Of Perceived Understanding, Christine M. Carpenter

Dissertations and Theses

When attempting to communicate with another person, the success or failure that a communicator perceives, he or she interprets as understanding or misunderstanding. Research has shown that "perceived understanding" or the "feeling of being understood" is important in self-concept development. However, for some time researchers have focused on the listener's needs and the speaker's needs have been given less attention. Yet, the listener's role in meeting the speaker's needs, particularly in providing feedback to the speaker, is of utmost importance if the speaker is to have the "feeling of being understood." This research examined the concept of the "feeling of …

A Comparison Of Developmental Sentence Score Patterns In Three Groups Of Preschool Children, Michelle Lynn Riback

Dissertations and Theses

Researchers have successfully labeled specific patterns of expressive language development as it appears in children developing language normally. Little research has identified particular patterns of expressive language in children who display expressive language disorders or delays. Longitudinal studies of expressively language impaired children indicate that linguistic, educational and social impairments exist long after the language impairment was first identified (Aram, Eckelman and Nation, 1984; Aram and Nation, 1980; Fundudis, Kolvin and Garside, 1979; Stark, Berstein, Condino, Bender, Tallal and Catts, 1984). If patterns of delayed or disordered language development are researched and possibly labeled in the early stages of language …

Correction Of Chromatic Aberration With An Electron Mirror, Michael Stewart Mauck

Dissertations and Theses

The theoretical basis for using electron mirrors as correctors of chromatic aberration is presented and an experimental verification of correction of chromatic aberration is demonstrated. A hyperbolic electrostatic electron mirror operating in its converging range and at unity magnification was used as a corrector. A novel separating system with deflections taking place at image planes was developed to implement the mirror without impairing the resolution. Correction was demonstrated in an electron optical probe system. The chromatic aberration was measured by means of the shadows cast by a fine mesh placed near the final image. The experimental method and equipment are …

How Gothic Influences And Eidetic Imagery In Eight Color Plates And Key Poems By William Blake Figuratively Unite Body And Soul By Dramatizing The Visionary Imagination, Honor Penelope Vallor

Dissertations and Theses

A study of Gothic influences and eidetic imagery evident in eight Blake color plates to demonstrate that, when interpreted together with key Blake poems, unity of body and soul can be accomplished by means of the visionary imagination.

Dynamic Nmr Study Of Bond Rotational Activation Parameters In Micelles, Dietmar A. Leitner

Dissertations and Theses

The behavior of surfactants in solution has been and still is of scientific, technological, and industrial interest. The micelle forming compounds sodium N-( octyloxycarbonyl)sarcosinate (NaOcSarc), and sodium N-(decyloxycarbonyl)sarcosinate (NaDecSarc) show in aqueous solution two ¹H NMR N-methyl peaks arising from a possible cis- or trans-conformation. The relative population of the N-methyl peaks depends mostly on the concentration of surfactant indicating micelle formation. Upon heating the two peaks start to coalesce and finally appear as one single peak. The temperature range in which this phenomenon occurs is from 25°C to 65°C. The primary interest of this study was to determine …

John F. Kennedy: A Political Biography On Education, David Eugene Armontrout

Dissertations and Theses

In what is historically a brief number of years, the life and times of John F. Kennedy have taken on legendary proportions. His presidency began with something less than a mandate from the American people, but he brought to the White House an inspiration and a style that offered great promises of things to come.

This study provides a political biography of John F. Kennedy and education. In addition, it investigates the records of past presidents and congresses, as well as the school aid lobby. This account also draws upon the vast body of historical, educational, and political material on …

Perceptions Of China And The Chinese People In The British Periodical And Newspaper Press, 1860-1900, William M. Stegemeyer

Dissertations and Theses

Few historians have examined the portrayals of China by British writers during the nineteenth century. Although Britain lead all other western powers in the penetration, exploration and exploitation of the Chinese Empire during the nineteenth century, British perceptions of China, particularly during the critical final decades of the century, have only been presented as small parts of larger comprehensive surveys of western images of China. Historians agree that as a result of Britain's active role in China, British writers were the leading transmitters of information about China to the West, especially after the formal 'opening' of China by treaty after …

A Comparative Media Study Of How Aids-Related News Is Reported In Mainstream And Alternative Presses, Robert Eugene Schlick

Dissertations and Theses

This thesis examines the reporting of AIDS-related news in both mainstream and alternative newspapers. This research suggests that mainstream newspapers, such as the New York Times, frame news stories in certain ways. Specifically, this study suggests that news about AIDS will be framed in ways which trivialize and/or marginalize those most affected by AIDS. The thesis also posits that the mainstream press will frame AIDS-related news in ways which support their own interests. Additionally, this research suggests that alternative presses, such as the Advocate, will frame their reporting of AIDS-related news in ways which support their interests.

The mainstream newspaper …

Compiling Ace For Distributed-Memory Machines, Jun Song

Dissertations and Theses

Distributed-memory machines offer a very high level of performance, flexibility and scalability. But the memory organization of this kind of machine determines that processes on different processors must communicate explicitly by sending and receiving messages. As a result, the programmer faces the enormously difficult task of detailed planning of algorithm-irrelevant, low-level communication issues. This level of programming resembles writing assembly programs for a sequential machine.

ACE is a message-passing language with abstract communication statements. It was defined by Dr. Jingke Li at Portland State University. The communication in ACE is still explicit, but it is abstracted to a higher level. …

Cytogenetics Of Delphinium (Ranunculaceae) Species Native To Oregon, Jill Yeatman Turner

Dissertations and Theses

Evidence of hybridization, known to occur in the genus Delphinium (Ranunculaceae ), has recently been discovered among certain Delphinium species native to Oregon. This issue was investigated by cytogenetic analysis of four native species of Oregon, D. trolliifolium, D. menziesii, D. pavonaceum and D. leucophaeum, and an unidentified purple delphinium, which is possibly a hybrid. Although many species in this genus are karyotypically similar, any variations found among the karyotypes of these Oregon species might be used to identify parental chromosomes in the purple delphinium (proposed hybrid). Meiotic analysis was used to detect structurally heterozygous homologues that …

Communication Issues In The Management Of A Multicultural Workforce, Deborah Margaret Sipe

Dissertations and Theses

The purpose of this thesis is to examine communication issues which are most frequently identified as the concerns of U.S. managers who work with culturally and ethnically diverse workforces, and skills which are identified as useful in dealing with those issues. This thesis used a qualitative method of data collection. Information was generated through a review of literature in the fields of communication, management, and organizational behavior to determine frequently occurring themes concerning intercultural communication issues in the workplace. Following the review, three case study interviews were conducted with managers in the Portland metropolitan area to determine what they perceive …

Democratic Ideology, The Frontier Ethos, Medical Practice And Hospital Culture: Pacific Northwest Health-Seekers, Community Health And The Sisters Of Providence, Vancouver, Wa 1856 - 1879, Susan T.L. Courtney

Dissertations and Theses

Most historians readily acknowledge the economic incentive that prompted many pioneers to migrate westward across the overland trail. Health motivations remain generally unexplored. Many Americans had settled the interior regions most suited to farming, especially the acreage around river valleys in the Mississippi drainage system. Unfortunately, health conditions were not favorable to human existence.

The dilemma of economic well-being versus health disaster motivated a number of Americans to seek better living conditions. Some chose overland migration to the Pacific Northwest. The situation in contemporary medical practice was a kaleidoscope of competing sects and contradictory convictions. The mainline profession of medicine, …

Hawthorne Boulevard: Commercial Gentrification And The Creation Of An Image, Rachel Ann Hardyman

Dissertations and Theses

Portland's Southeast Hawthorne Boulevard illustrates commercial gentrification in progress. Once a declining service district, "Hawthorne" is now one of the city's most popular shopping streets. Tracing and classifying businesses, using address listings from city directories, gives an accurate picture of changes since 1980. Three parallel trends can be distinguished in the makeup of the business mix: a shift from services to retailing; a move towards a regional, rather than a neighborhood, market area; and a cultural upgrading associated with the influx of increasingly expensive stores. Classification also aids in the definition of a tipping point at which revitalization became gentrification. …

Efficacy Of A Cycling Approach For The Treatment Of Developmental Verbal Dyspraxic Preschoolers, Janet Rose Lambert

Dissertations and Theses

Two preschool males who presented with the characteristics of developmental verbal dyspraxia were enrolled in a phonological cycles intervention approach. Initially, each child's deviant phonological processes were analyzed by the CAPD and target patterns and words selected for remediation. A continuous speech sample was obtained and analyzed to measure intelligibility by percentage and rating on a seven point scale. A time-space probe was developed based on targeted and non-targeted phonemes and administered prior to the first intervention session. Using the selected targeted patterns and words, an individualized remediation plan was developed, and the phonological process cycling approach used. Each subject …

The Use Of Laboratory Testing To Understand The Behavior Of Collapsible Soil Upon Wetting, Martha H. Denham

Dissertations and Theses

In developing a constitutive model that could predict the settlement due to the collapse, several goals needed to be met. These were to gain an understanding of the collapse phenomenon, knowing the soil properties at the natural water content and how they change after collapse, and develop and test the new model. It was felt that laboratory testing could be of use. The types of test conducted included use of the Oedometer, Pressuremeter, and Triaxial tests. The material that was used for the testing was a "generic" soil manufactured out of diatomite. In all of the tests the soil was …

A Gaze-Addressing Communication System Using Artificial Neural Networks, Gabriel Baud-Bovy

Dissertations and Theses

Severe motor disabilities can render a person almost completely incapable of communication. Nevertheless, in many cases, the sensory systems are intact and the eye movements are still under good control. In these cases, one can use a device such as the Brain Response Interface (BRI) to command a remote control (e.g. room temperature, bed position), a word-processor, a speech synthesizer, and so on.

The BRI is a gaze-addressing communication system that was developed by Dr. Erik E. Sutter at the Smith-Kettlewell Eye Research Institute, San-Francisco: a menu of communication objects (e.g. letter, word, command) is displayed on a TV screen; …

Psychological Models And The Stock Of Knowledge, David L. Sones

Dissertations and Theses

The research sought to ascertain whether or not psychological ideas and notions ("psychological models") are used to explain human behavior and human characteristics in everyday life, and if so, are these psychological models similar to the schools of thought within the field of psychology? Also of interest was whether or not "statistical categories" use psychological models as a "style of thought," and if so, are psychological models part of the current American Weltanschauungen? The convenience sample consisted of 34 respondents who were taking an introductory sociology course, and 39 respondents from non-college settings. An open-ended questionnaire containing 13 questions asking …