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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 …

Faculty Senate Monthly Packet November 1992, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 1992 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 1992.

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; …

Demographic, Housing & Socioeconomic Profile Of The City Of Portland Neighborhoods, Portland State University. Center For Urban Studies, Portland State University. School Of Urban And Public Affairs, Steve R. Johnson

Center for Urban Studies Publications and Reports

We are pleased to present the eighth edition of the Neighborhood Information Profiles. The Profiles were last published by the City of Portland's Office of Finance and Administration in 1986. This edition is based on the 1990 Census data.

This demographic report includes Census data compiled according to the boundaries of each of the 90 recognized neighborhood associations in Portland. The information about boundaries was gathered from neighborhood by-laws and interviews with neighborhood leaders. The boundaries are current as of August 31, 1992.

This report can be used for allocating needed resources and services, measure changes in conditions and populations, …

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: A PSU professor continues his work on innovative community projects while coping with the effects of a cancerous brain tumor; community and alumni accomplishments remain, despite the closing of the School of Health and Human Performance; Columbia River Correctional Institution is like a small town with a PSU alumnus as its mayor; students photographed the people and places of Portland State during a 24-hour period last spring; and more.

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 …

Binary Mixtures Near Surfaces, Patrick Dunn

Dissertations and Theses

This paper presents an approach to modeling a binary mixture near a surf ace. The approach used is based on statistical mechanics. The Cluster Variation (CV) method is used to solve an Ising-like model with a cluster size of two (neighboring lattice points). The free energy of the system is expressed in terms of the probabilities of occurrences of particular clusters. The CV method is first developed for a homogeneous system which leads to a set of three non-linear partial differential equations. The surface boundary is then introduced and the CV method is developed for this system which leads to …

Urban Native American Educational Attitudes: Impact Of Educational Background And Childhood Residency, Paul Adair Wood

Dissertations and Theses

The purpose of this thesis is to study the relationship between educational attitudes and certain background features of Native Americans, in particular, where they were raised and what type of school they attended. The sample used consisted of 120 completed mail out-mail back surveys that were used primarily as a Needs Assessment for the Portland Indian Health clinic. The sample was randomly selected from the Portland Indian Health Clinic client/patient mailing list. The findings of this thesis indicate that the attitudes of Native Americans toward education in general are positive. The findings also indicate that older Native Americans who experienced …

Minimization Of Exclusive Sum Of Products Expressions For Multiple-Valued Input Incompletely Specified Functions, Ning Song

Dissertations and Theses

In recent years, there is an increased interest in the design of logic circuits which use EXOR gates. Particular interest is in the minimization of arbitrary Exclusive Sums Of Products (ESOPs). Functions realized by such circuits can have fewer gates, fewer connections, and take up less area in VLSI and especially, FPGA realizations. They are also easily testable. So far, the ESOPs are not as popular as their Sum of Products (SOP) counterparts. One of the main reasons it that the problem of the minimization of ESOP circuits was traditionally an extremely difficult one. Since exact solutions can be practically …

Soviet Pentecostal Refugees' Health And Their Religious Beliefs: An Exploratory Study, Dianne Fae Venable

Dissertations and Theses

This thesis explored the health practices and religious beliefs of the recent Soviet Pentecostal refugee population in the Portland, Oregon metro area. The methodology consisted of 25 in-depth interviews over a period of twelve months. Soviet Pentecostal refugees' health practices are influenced by their religious belief system which is Pentecostalism. The four primary factors that were found to have an affect on the refugees' health were lifestyle practices; coherence; or the meaning of suffering that religion provides; cohesiveness, or group belonging to the religious community, and world view provided by the underlying theology. The language barrier, distrust of outsiders, unfamiliarity …

A Comparison Of Expressive Vocabulary Produced By Nonambulatory, Speaking Preschool Children And Ambulatory Speaking Preschool Children, Kim Denise Baker

Dissertations and Theses

Children with severe physical disabilities often do not have the capabilities for oral communication. Professionals are frequently faced with selecting vocabulary for children who are unable to use vocal output because of severe motor impairments. A child who is nonambulatory may have additional reasons for communicating and sees the world from a different viewpoint than his ambulatory peers. Selecting appropriate words for an initial lexicon that are useful to nonspeaking disabled children that also meet normal language acquisition standards is a concern. This study specifically addresses this concern by looking at the vocabulary differences of ambulatory and nonambulatory preschool children. …

Assessment: Authentic Strategies For Early Childhood Education, Gail Ann Hathaway Tupper

Dissertations and Theses

This thesis explores the relationship between assessment techniques and reporting procedures in early childhood settings. Discrepancies between curriculum being presented and skills and progress being reported are examined.

The curriculum used in this study is Portland Public Schools' Piaget Curriculum, which stresses active, scientific problem solving for children 4 to 6 years old. A variety of assessment, observation, recording and reporting tools are suggested, implemented and critiqued. Creation of a portfolio to store and showcase these items is suggested and explained.

The important role of parents and families in the assessment process is studied. Strategies for involving parents at all …

Development Of A Semi-Synthetic Medium Supporting Adherent Growth In Coagulase-Negative Staphylococci, Abbas Sadeghi

Dissertations and Theses

A semi-synthetic medium for use in determining adherent growth with Staphylococcus epidermidis and Staphylococcus saprophyticus was developed. Production of an adherent biofilm was dependent upon the presence of hematin in the growth medium. Clinical strains of Staphylococcus epidermidis were tested for production of an adherent biofilm in trypticase soy broth, the semi-synthetic medium and the hyperalimentary nutrient solution used in the neonatal hospital unit. An adherent biofilm was obtained when Staphylococcus epidermidis was cultured m hematin supplemented hyperalimentary solution. Growth in the hyperalimentary nutrient solution diluted with fetal calf serum showed the same growth rate as when the nutrient solution …

1989 Chinese Pro-Democracy Movement And U.S. News Media, Jie Sun

Dissertations and Theses

This thesis explores three aspects of the relationship between U.S. news media and the Chinese pro-democracy movement in 1989. These three aspects are: How much attention did u.s. newspapers give to the Chinese pro-democracy movement in 1989? How did u.s. newspapers portray the power struggle in the Chinese government during the time when the Chinese pro-democracy movement took place? Has there been any change in the image of China during and after the Chinese pro-democracy movement in 1989? Research data are drawn from the following three U.S. newspapers: The New York Times, Washington Post, and Los Angeles Times. Content analysis …

The Concept Of "Communication Skills" In The Discipline Of Speech Communication, Lynn Bales

Dissertations and Theses

This investigation explored the dialectic of communication competence from an historical prospective and successfully identified seven common threads in competence theory. Communication skills and skills classifications were linked to competency issues. A content analysis of the 452 page leading national skills level communication text identified 185 skills behaviors along with their associated communication competencies. Skills were described in twelve categories; however, no consistent definition or treatment of communication skills was in evidence. Implications of the findings were discussed.

A Classroom Preferences Questionnaire Based On The Theory Of Multiple Intelligences, Allyn Snider

Dissertations and Theses

A questionnaire based on Gardner's Theory of Multiple Intelligences was developed and administered to forty-five second grade students in three different classrooms. Sections of the fifty-eight item questionnaire dealt with students' preferences for certain classroom activities, methods of learning, and modes of social interaction. Each student's responses were summarized to create an individual profile, indicating preference for linguistic, mathematical, and/ or spatial activity. In addition, students' preferences for receptive and/ or expressive methods of learning, and for working by themselves, with peers, or with adults were profiled.

Factors Affecting The Repatriation Of The Afghan Refugees, Todd Trowbridge Ames

Dissertations and Theses

The purpose of this thesis is to examine the factors affecting the repatriation of Afghan refugees living in Pakistan, by using data collected in these refugee camps, during the Fall of 1988.

Flux Trapping In Superconducting Pellets, Andreas Straub

Dissertations and Theses

This research concerns the effects on samples of nominal composition Bi_1.8Pb_0.2Sr₂Ca₂Cu₃O_y which were exposed to hot, dense argon in a ballistic compressor.

The investigations were concentrated on two specimens which were exposed to hot, dense argon at about 1800 K (peak pressure 330 atm) and 1500 K (peak pressure 230 atm), respectively. Sample Bi #1 showed a completely melted surface structure after triple exposure in the ballistic compressor at 1800 K while the surface of sample Bi #7 was just partly melted after double exposure at 1500 K.

Changes …

Effective Middle School Teaching: Factors That Promote And Maintain It, Judith Ann Smith

Dissertations and Theses

The past thirty years has seen the middle school as an organization come of age and with it a renewed emphasis on meeting the needs of the early adolescent student. Although many current studies have addressed middle school issues, one of the most significant was the Carnegie Council on Adolescent Development's Turning Points: Preparing Youth for the 21st Century (1989). It claimed that the middle school is the "last best chance" to turn young lives toward a meaningful future and, in order to do so, schools must be staffed with "expert" teachers.

Once one knows what an "expert" teacher is, …

Early-Return-To-Work Programs: An Exploratory Study Of The Effects Of Program Policies And Practices On Organizational Outcomes, Lorrie L. Riat

Dissertations and Theses

Early-return-to-work (ERTW) programs for injured workers are a relatively new development. While it is widely believed that such programs are the primary means of controlling workers' compensation costs after an injury has occurred, little research has been done on how these programs accomplish that end. This thesis is an exploratory examination of the factors involved in ERTW programs and the relationship between components of ERTW programs for injured workers and organizational outcomes, specifically the cost of medical care and wage reimbursement associated with workers' compensation claims.