Digital Commons Network^™

The Summit Vegetation Of Saddle Mountain, Oregon Coast Range, Charles Thomas Carlson

Dissertations and Theses

Saddle Mountain (1000 m) is the highest peak in the Northern Oregon Coast Range. Meadows are found to occur at and near the summit of the mountain which contain abundant wildflowers. Although the majority of these meadow species have been collected and identified in the past no formal study has been done to classify them into communities. The purpose of this study is to examine the character and origin of the plant communities located at or near the summit of Saddle Mountain. Data were collected on 4 study sites during the Summer of 1996 and analysis of the data lead …

Purification And Characterization Of Catalase From Enterococcus Faecalis, Zhenghong Zhu

Dissertations and Theses

Catalase is an important biological enzyme that most organisms employ during aerobic growth to catalyze the decomposition of hydrogen peroxide, a toxic reduction product of oxygen, into water and molecular oxygen. Traditionally, the bacterium Enterococcus faecal is is considered to have no cytochrome system and to be catalase negative. However, certain strains of E. subsequent studies have shown that faecalis are capable of producing catalase when grown aerobically in a medium containing hematin.

The goals of this study were to purify and characterize catalase from a clinical strain of E. faecalis. The organisms were grown under aerobic conditions in a …

Simulating Migration Of Contaminated Sediments In The Lower Columbia Slough System, Min Chen

Dissertations and Theses

Recent screening-level risk assessment of Slough sediments initiated by the City of Portland identified five contaminated areas in the Slough as posing the greatest potentially significant risks to human health. These five areas were recommended for accelerated remedial action.

But one question remains, does the sediment contamination at these hot spots change over time in response to the changing Slough hydrodynamics? Specifically, will the contamination move or spread even before remedial action is taken? Will they still be there by the time when potential remedial action is taken? Will any new hot spots be created in response to nonuniform transient …

Sexual Intercourse : A Feminist Reading Of Strip Joint Discourse, Regina Marie Howard Yaroch

Dissertations and Theses

The discursively-constructed stereotype of stripper plays an important role in the ideology that sustains our system of sexual relations. This construction also interacts with and constrains the lived reality of actual women who earn their living in the stripping industry. This research attempts to examine this interaction by exploring the discourse that is generated by stripping industry participants. A long interview transcript is analyzed as a text to develop a feminist reading that focuses on the socio-cultural forces that make a particular story possible as well as necessary to tell. This story emerges, through the first-person account of a dancer-informant, …

New Approaches To Column Compatibility Checking And Column-Based Input/Output Encoding For Curtis Decompositions Of Completely Or Incompletely Specified Switching Functions, Michael A. Burns

Dissertations and Theses

Cube calculus is an algebraic model used to process boolean functions. Cube calculus operations are widely used in logic optimization, logic synthesis, image processing and recognition, machine learning, and other applications which require massive logic operations.

The cube calculus operations can be carried out on general-purpose computers. Since these operations can involve several levels of nested loops, this approach has poor performance.

A cube calculus machine which has a special data path designed to speed up cube calculus operations is presented in this thesis. This c-qbe calculus machine can execute cube calculus operations 10 to 25 times faster than the …

The Interaction Of Naphthoquinones With The Calcium Release Channel Of Skeletal Muscle Sarcoplasmic Reticulum, Ruohong Xia

Dissertations and Theses

The sarcoplasmic reticulum (SR) is an intracellular membrane system which regulates cytoplasmic calcium concentration in muscle and controls the contractile state of muscle. In this thesis, the interaction between naphthoquinone and the Ca²⁺ release mechanism of SR is described. 1,4-naphthoquinone (1,4NQ) is shown to stimulate Ca²⁺ release and to modify high-affinity ryanodine binding to skeletal muscle sarcoplasmic reticulum. The interaction between 1,4NQ and the SR involves the oxidation ofcritical sulfhydryl groups associated with the Ca²⁺ release mechanism. The modulation of ryanodine binding by 1,4NQ is biphasic. At low concentrations of 1,4NQ (<10 >μM) ryanodine binding is stimulated, …

Investigation Of Transactivation Of The Human C-Myc Gene By Herpes Simplex Virus Type 1, Xian Wu

Dissertations and Theses

The purpose of this investigation was to identify the regulatory elements involved in the transactivation of the human c-myc gene by herpes simplex virus type-1 (HSV-1). This study mainly focused on a major c-myc promoter P₂ (Fig. 1). Transient expression assays were carried out with a reporter plasmid, that contained either a wild type (+66wt c-myc) or mutant (+66 mt E2F, +66mt CT -I₂) c-myc promoter fused to the chloramphenicol acetyltransferase (CAT) gene, cotransfected with effector plasmids that contained the HSV-1 immediate early (IE) genes ( encoding IE proteins, ICP4, ICP0, ICP27). The transient expression assays revealed …

The Relationship Between Self-Monitoring And Organizational Training Effectiveness And Satisfaction, Joanna Wulbert

Dissertations and Theses

The present research explored the relationship between self-monitoring and training. It was hypothesized that high self-monitors' sens ivity to social cues would improve training satisfaction and learning. This study was divided into 2 parts; a field and a laboratory study. Nine trainees and 8 peer trainers participated in the field study and 75 undergraduate psychology students participated in the laboratory study. Due to the extremely small sample size of the field study, the results were not conclusive. In the laboratory study, trainers' that were categorized as high self-monitors were associated with higher satisfaction levels among trainees. However, self-monitoring was not …

A Survey Of Swallowing Symptoms Associated With The Premenstrual Cycle, Jill Gigi Calcagno

Dissertations and Theses

Premenstrual Syndrome (PMS) has been associated with a vast number of physical, emotional, social, and behavioral symptomatology. Laryngeal disturbances invoked by hormonal imbalance may affect swallowing as a component of PMS. Previous studies regarding swallowing ability during the premenstrual cycle were nonexistent.

This study examined the relationship between PMS and swallowing disorders. One hundred thirty-seven females completed a written survey that elicited information regarding biographical data, presence and severity of cyclically recurring symptoms associated with PMS, and perceived presence and severity of dysphagia during premenstruum.

Spearman Rank (Rho) correlation coefficients were computed to determine the extent of the relationship between …

The Effects Of Parental Involvement, Structure, And Autonomy Support On Children’S Help-Seeking And Problem-Solving Coping In School, Ronald Wayne Yoder

Dissertations and Theses

The effect of parenting on children's coping in school was investigated. Sixhundred and twelve children in grades three to five provided self-reports on four ways of coping, including help-seeking, concealment, strategizing and confusion, and the parenting dimensions of involvement, structure, and autonomy support. Psychometric analyses conducted on each dimension of parenting, resulted in reducing the number of parenting variables to two: involvement and structure/autonomy support. Correlational analyses found the predicted relations between children's experiences of parenting and their ways of coping in school. Multiple regressions indicated that only unique (positive) predictor of the two positive ways of coping (help-seeking and …

Le "Devenir Féminin" Dans La Sociéte Moderne Occidentale À Travers Les Deux Romans De Virginie Despentes, Nadia Louar

Dissertations and Theses

Les deux premiers romans de Virginie Despentes, Baise-moi (1995) et les Chiennes Savantes (1996), attestent de la mutation socio-culturelle qui affecte la societe contemporaine. Son style insolent, son langage corrosif et volontairement Prosaïque confirme et signe I 'évolution dans le monde occidental des valeurs, des désirs et aspirations de 1'homme, et plus crucialement de la femme des années 90. Plus qu'une révolution des moeurs, on assiste dans ses deux premières oeuvres á une véritable mutation culturelle qui bouleverse les rôles et modéles traditionnels des individus dans la société. Ce bouleversement qui s'exprime dans la vie banale, mais définitivement violente de …

Managing Oregon’S Aquatic Resources : A Dynamic Segmentation Application, Keith Andrew Hupperts

Dissertations and Theses

Many of Oregon's salmon, the cultural icon of the region, are imperil. Salmon runs ranging from the Snake River to the Oregon coast, from chinook to coho to steelhead to cut-throat are being protected or candidates for protection under the federal Endangered Species Act of 1973. As Oregon's salmon decline natural resource agencies, such as Oregon Department of Fish and Wildlife (ODFW), are seeing substantial funding cutbacks. In order to compensate for lost personnel and rising work-loads, ODFW is increasingly turning to new technologies, such as Geographic Information Systems (GIS). This thesis describes the creation of a dynamic segmentation GIS …

Bulletin: General Catalog Issue 1997-1998, Portland State University

Bulletin & Curriculum Change Documents

No abstract provided.

Public Transportation For The Elderly: A Neighborhood-Area Fixed-Route Alternative, Richard James Burke

Dissertations and Theses

As the elderly population of the United States grows in coming decades, providing personal mobility will be increasingly challenging. The dispersed suburban residential pattern of most metropolitan areas ensures that the personal automobile will continue to be the dominant mode of transportation. Those who voluntarily or involuntarily stop driving will encounter serious constraints in meeting their transportation needs.

Conventional public transit in most cities is tailored to the needs of urban commuters, and is, at best, barely adequate for elderly riders. Supplemental demand-response or subscription "special-needs" services are often inconvenient, sometimes unreliable, and inefficient. Eligibility criteria restrict many non-disabled elderly …

The International City Hypothesis: An Approach To The Recent History Of U.S. Cities, Carl Abbott

Urban Studies and Planning Faculty Publications and Presentations

Differentiates between the concepts of world cities and international cities, asserting that study of international cities offers greater opportunities for research and analysis of major urban regions of the latter 20th century. The world city model emphasizes hierarchy and status based on influence and power. The international city model emphasizes numerous indicators that demonstrate a broader range of international connections, including foreign tourists, new immigration, sister-city affiliations, and multinational corporation offices. They may function as production centers, gateway cities, or transactional cities. At present, statistical data are thin, and the topic invites research by urban historians.

An Ethnographic Study Of Chinese Adolescent Identity In Taipei, Taiwan : Franchise Hangouts, Jui-Fang Ruby Chen

Dissertations and Theses

One of the discriminating changes that Taiwan is experiencing is a shift in young people's view of "self," manifested in and through their daily activities within its cultural context (Yang, 1981). The question arises, how do Taiwan's adolescents shape their view of "self' within this contemporary context at the intersection of Eastern and Western cultures? This thesis examined on how Chinese adolescent identity was constituted symbolically in and through their speech practices within a public social context, a typical Westernized dining place--McDonald's, a U.S. fast food restaurant, and how such a locale both served and made sense by these urban …

Perceptions Of Stuttering Intervention Services Received At Portland State, Franklin Wayne Bender

Dissertations and Theses

As consumers become more knowledgeable and more demanding of accountability, health care workers, including speech-language pathologists, are being required to justify the effectiveness of their work by documenting the results of their treatment programs. There are different ways to measure treatment outcomes. Outcomes may be measured qualitatively and/or quantitatively. Qualitative or subjective outcomes are difficult to define and measure and few studies of this type have been reported in the literature. Because few studies have been reported in the literature regarding client satisfaction, this area was investigated in this research project. The focus of this project was to ascertain whether …

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: Baby boomers are telling a PSU prof what life will be like when they’re sixty-four; students give PSU’s new inquiry courses high marks—and so do some key national foundations; the Helen Gordon Center comes of age as the first child of an alum joins its sandbox student body; thwarting electronic sabotage and theft is the research subject of four computer scientists an alumna is helping people who are battling poverty help themselves; the university is honoring its own coaches and student athletes from Vanport to today; and more

Predicate Clefting In Kisi, George Tucker Childs

Applied Linguistics Faculty Publications and Presentations

This paper examines the focus construction of Kisi, an Atlantic language (Niger-Congo) spoken by some half a million people primarily in Guinea but also in nearby Sierra Leone and Liberia. The data come from work done in 1983-84 on the southern dialect spoken in the Foya area of Upper Lofa County, Liberia. Of particular interest is the presence of what has been known in the literature as "predicate clefting'', e.g., DeGraff 1996. Its interactions and complementarity with negation, an inherently focusing construction (Marchese 1983), evince some complexity. Despite some superficial similarity, however, substantial syntactic differences exist. More similarities exist in …

Patient Behaviors And Beliefs : Are Standardized Patients Different?, Colleen Shannon Lewy

Dissertations and Theses

Standardized patients (SP's) are lay people who are trained to evaluate and train clinical skills for medical personnel. It was hypothesized that since SP's have had practice and experience interacting with medical personnel that they would exhibit higher levels of patient interaction with their own health care providers. Surveys were sent to SP's affiliated with two medical schools in the Northwest as well as a control group from a local university. Surveys consisted of the Thompson Decisional Involvement scale, the Ende Autonomy Preference Index, the Krantz Health Opinion Survey: Information Seeking subscale, a Satisfaction Criteria scale, and an Expectations survey. …

Gangstas, Niggas, Bitches And Hos : A Narrative Analysis Of Gangsta’ Rap Lyrics, Darnell A. Watson

Dissertations and Theses

This thesis examines gangsta' rap as a form of narrative. It addresses the following questions: 1) Is gangsta' rap a form of narrative; most significant characterizes the 2) if yes, which narrative elements are to interpreting the stories; 3) what elements which are most significant to interpreting the stories and 4) what kinds of stories are being told? Data for the analysis included transcribed lyrics from a representative sample of gangsta' rap recordings. Journal articles, media articles and books germane to understanding the social and cultural context of gangsta rap were also used. It was found that gangsta' rap lyrics …

"Blame It On Intake” : A Critical Ethnography Of The Negotiation Of Access To Shelter Services In A Shelter For Homeless And Battered Women, Kathleen Marie Drew

Dissertations and Theses

Even though the number of homeless women has increased among a population viewed as typically male (Merves 1992), there is still little research focused on women. This study investigated the communicative practices in and through which gendered identity was constructed, negotiated and performed at a point of rupture when the norms for judging a "good woman:"--that is woman as wife, as mother, and as homemaker appear to have been violated. The negotiation of access into an urban shelter for homeless and/or battered women provided a rich site for the study. The research was grounded in the assumptions of symbolic interaction …

Video Self-Monitoring As An Alternative To Traditional Methods Of Pronunciation Instruction, P. C. Noble

Dissertations and Theses

Japanese students of English have difficulty pronouncing /f/, Ir/, /1/, /v/ and "th", sounds that are either not present in their language, or as in the case of /r/, articulated in Japanese more like an English /di. Their difficulty with these sounds seems to affect their comprehensibility in English to native-speakers of English.

The purpose of this partial replication of a 1994 study by MacDonald, Yule and Powers was to test three different methods of pronunciation instruction ( and a control) to determine which promoted the greatest improvement in the pronunciation of the five target sounds among Japanese speakers. The …

Declining Total Fertility Rates In Bangladesh And Indonesia From 1970 To 1996 : Causes, Implications, And Analysis, William Bruce Aronson

Dissertations and Theses

Many Asian countries have recently undergone dramatic fertility rate reductions, in what has been labeled the "Asian Fertility Revolution." The purpose of this study was to discover what factors led to declining total fertility rates from 1970 to 1996 in Bangladesh and Indonesia, two Asian countries with relatively low total development levels. Because of these low levels, it was hypothesized that factors outside of economic development have contributed to these countries' successes with fertility reduction. This is especially true for Bangladesh, which remains an undeveloped country; Indonesia is partially industrialized, and has made economic gains during this 26-year period. Theoretical …

Public Interest Group Politics And American Political Culture, Patrick Henry Brennan

Dissertations and Theses

Recent theories of interest group behavior have attempted to gain an understanding of how these groups mobilize for political action. However, these theories have led to account for a crucial aspect of public interest groups, a particularly important segment of the interest group universe. The purpose of this essay is to shed light on the ways that interest group theories must adapt if they are to better reflect this unique aspect of public interest group behavior. Specifically, it is necessary to acknowledge the role that a group"s ideas regarding shared American values play within the behavior of groups that seek …

Measure 9: Oregon’S 1992 Anti-Gay Initiative, Patricia Jean Young

Dissertations and Theses

In 1992 Oregon voters rejected Measure 9, an anti-gay initiative sponsored by the Oregon Citizens Alliance, a conservative, religious organization. Measure 9 sought to amend the Oregon Constitution to prohibit the state from establishing civil rights protections based on sexual orientation. Its passage also would have required government agencies and schools to set a standard that declared homosexuality as abnormal and perverse.

The Measure 9 campaign was emotional and divisive. Rhetoric was at an all-time high as the issue of gay-rights made front-page news, and Oregonians from all walks of life were forced to examine their beliefs about homosexuality, religion, …

Conflict Is Optional, Difference Is Not : Toward A Difference-Based Approach To Interpersonal Communication, James Arthur Gieseking Jr

Dissertations and Theses

An examination of the discussion of conflict in general, interpersonal and small group communication texts indicates that the conceptualization of conflict theory in the U.S. is increasingly dependent upon three theoretical pillars: the qualities of ubiquity, utility and necessity. A critical, deconstructive analysis of these operational characteristics in relation to the actual human experience of conflict reveals that they are more appropriately associated with the essential condition of difference, rather than conflict, and the concepts of conflict and difference are generally conflated in U.S. communication texts. The synergistic interaction of a variety of specific cultural constructs can be seen as …

Unwilling Accents : Reading Percy Bysshe Shelley’S Julian And Maddalo, Melody Ann Wilson

Dissertations and Theses

Most of the critical readings to date of Shelley's Julian and Maddalo have relied on the biographical elements of the poem. No doubt valid, these readings might have diverted attention from other elements of what might well be one of Shelley's most important poems.

Julian and Maddalo is the first of a projected series of four poems which Shelley never completed. lt does, however, participate in a group of poems linked thematically- if not consciously. These poems consist of Julian and Maddalo, "Ode to the West Wind," and "To a Sky-Lark." Each of these poems explores the notion of the …

A Comparison Of Two Second Language Acquisition Models For Culturally And Linguistically Different Students, Karen Dorothy Kuhn

Dissertations and Theses

The purpose of this thesis research was to determine if there were significant educational advantages in terms of sociocultural development for culturally and linguistically different students enrolled in a two-way bilingual education program as compared to those directly mainstreamed. Eighteen third-grade students were selected from two schools in the same school district. Half of the subjects spent their third grade year in a two-way bilingual educational program while the other half were mainstreamed into a submersion education program. Each subject was culturally (Hispanic) and linguistically (Spanish was the dominant language) different from mainstream students. A qualitative summary and statistical analyses …

Efficient Implementation Of Image Compression-Postprocessing Algorithm Using A Digital Signal Processor, Nadir Sinaceur

Dissertations and Theses

In this thesis, an attempt has been made to develop a fast way to implement a post-processing algorithm for image compression. All the previous tests for this postprocessing algorithm, which we will present, have been only software based and did not consider the time parameter.

For this purpose a new algorithm is used to compute the 2-D DCT transform. This change made the process a lot faster on a Spare 5 workstation. We have then decided to further increase the speed of the post-processing scheme by implementing it on the ADSP21020 chip.

The results show that such a chip can …