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

Portland State Magazine

PSU’s alumni magazine, published quarterly. In this issue: Predicting presidential performance is the subject of the day for professors Jim Heath and David Smeltzer; paint brush to canvas has become light pen to video terminal in one Art Department office; advanced degrees in science and engineering are the focus of far-reaching plans at Portland State; a professor and a student from PSU heads up an experimental needle exchange program; and more.

Logic Design Using Programmable Logic Devices, Loc Bao Nguyen

Dissertations and Theses

The Programmable Logic Devices, PLO, have caused a major impact in logic design of digital systems in this decade. For instance, a twenty pin PLO device can replace from three hundreds to six hundreds Transistor Transistor Logic gates, which people have designed with since the 60s. Therefore, by using PLD devices, designers can squeeze more features, reduce chip counts, reduce power consumption, and enhance the reliability of the digital systems.

This thesis covers the most important aspects of logic design using PLD devices. They are Logic Minimization and State Assignment. In addition, the thesis also covers a seldomly used but …

The Distribution Of Zooplankton In Selected Oregon Lakes, Mary Elizabeth Claska

Dissertations and Theses

Zooplankton samples were collected from 166 Oregon lakes. The lakes included a wide range in size, trophic status, and water quality. Lakes were located throughout the state. Zooplankton were identified using standard taxonomic keys and counted. Seventy-four species were identified from the 200 total samples, including 32 species of cladocera, 22 copepods, and 11 rotifers. Two species of copepod were recorded for the first time in Oregon: Diaptomus mississippiensis and Diaptomus pallidus. Seven species had widespread distributions throughout most of the watersheds in the state. Seventeen other species had distributions restricted to eastern, central, or western Oregon. The remaining …

Analysis Of Ferredoxin And Flavodoxin In Anabaena And Trichodesmium Using Fast Protein Liquid Chromatography, Karen Lorraine Jones

Dissertations and Theses

Iron is an essential nutrient for growth of photosynthetic microorganisms such as cyanobacteria and algae. Iron is required for proteins involved in the important processes of carbon and nitrogen assimilation. Low concentrations of iron in cultures or natural waters can lead to iron limitation which affects many aspects of algal metabolism. In natural waters, iron limitation can have effects on the patterns and rates of primary productivity.

The cellular content of certain proteins can be affected by media iron concentrations. Methods have been used that assay components of the cell as an indirect measure of iron nutritional status. For example, …

Advertising In Restrooms, Karsten C. Hofmann

Dissertations and Theses

There is a common belief that the special situation one encounters in restrooms is likely to evoke negative associations between the setting and a potential product, and that these presumed associations make advertising in restrooms incompatible with the objectives of advertisers.

This general proposition was questioned on theoretical grounds. It was argued that the specific situation in a restroom would be conducive to advertising goals in a number of ways. In addition, while negative associations may occur with certain kinds of products, others were hypothesized to be unaffected. In particular, the potential value of restrooms for communicating public education issues …

Beyond Difference Scores: Testing Models Of Speed Of Information-Processing Using Confirmatory Factor Analysis, Gary A. Uhland

Dissertations and Theses

This study has two parts: Part I discusses the limitations of difference scores and exploratory factor analysis for representing speed of information-processing stages in the context of a reanalysis of a study by Vernon (1983). Vernon interpreted the differences between objectively measured reaction times on various simple cognitive tasks as components of speed of information processing. Correlations were calculated among these differences and subjected to exploratory factor analysis. The factors obtained from this analysis were interpreted by Vernon in terms of short-term and long-term memory processing constructs. The use of difference scores, however, implies an additive model allowance for random …

Gibbon Classification: The Issue Of Species And Subspecies, Erin Lee Osterud

Dissertations and Theses

Gibbon classification at the species and subspecies levels has been hotly debated for the last 200 years. This thesis explores the reasons for this debate. Authorities agree that siamang, concolor, kloss and hoolock are species, while there is complete lack of agreement on lar, agile, moloch, Mueller's and pileated. The disagreement results from the use and emphasis of different character traits, and from debate on the occurrence and importance of gene flow.

Holocene Fluctuations Of The Coe Glacier, Mount Hood, Oregon, Karl Douglas Lillquist

Dissertations and Theses

Numerous moraines front the Coe Glacier on the north side of Mount Hood, Oregon. These moraines were identified and dated using a multiple methodology approach in order to establish a chronology for the advances and stillstands of the Coe Glacier. This chronology was compared to chronologies established for other glaciers on Mount Hood, North Sister, Mount Rainier and Mount Baker as well as glaciers in Scandinavia. The chronology was also compared to a long term temperature record from Longmire, Washington.

The maximum identified extent of the pre-Little Ice Age Coe Glacier was indicated by moraines located at an elevation of …

An Investigation Of The Effect Of Using Varying Stimuli To Assess Normal Children's Comprehension Of Five Locative Prepositions, Kathleen G. Versteeg

Dissertations and Theses

A recurring concern in recent research appears to be the role that assessment variables play in accurately measuring children's knowledge and use of prepositions. Age and order of acquisition of prepositions has become a dynamic rather than static standard, as different ways of assessing prepositions also give different results. These researchers have investigated assessment variables such as context (picture, object, no context) and response (self actions, manipulating, pointing) in assessing normal children's understanding and use of prepositions. Most have considered these variables separately, but a few have contrasted a limited number of variables with significant results for some age groups. …

'Gewalt Gegen Gerechtigkeit": Reality And Morality In Heinrich BöLl's Die Verlorene Ehre Der Katharina Blum, Michelle Elizabeth Manicke

Dissertations and Theses

Heinrich Boll is West Germany's most controversial author of the post-war period, and Die verlorene Ehre der Katharina Blum is probably his most widely contested work. Readers and literary critics alike have generally misunderstood or only partially understood Boll's purpose in writing this Erzählung. Many have discounted it as the author's personal revenge against press and police for their mutual attacks on his honor. Others have panned it for its "poor German" and its lack of realism. Such reviews tend to examine only selected formal and thematic aspects of Katharina Blum. In order to fully comprehend any of …

Eating Disorders: The Correlation Of Family Relationships With An Eating Disorder Continuum, Jana Schweitzer

Dissertations and Theses

For the purposes of this study, eating disturbances were placed on a continuum ranging from disordered to normal, and family factors were examined via this framework. Research on anorectics and bulimics indicates that a variety of family variables contribute to the etiology of eating disorders. Research suggests the presence of a subgroup of persons who experience some disturbance in their relationships with food but not to the severity observed among eating disordered individuals. This study examined the relationship between family factors and eating disturbances.

The Effectiveness Of Fiction Versus Nonfiction In Teaching Reading To Esl Students, Becky Kay Appley

Dissertations and Theses

In recent years with the growing emphasis upon communicative activities in the classroom, controversy has risen as to which type of reading material is best for teaching reading in the ESL classroom, fiction or nonfiction.

A study was conducted with 31 students of which 15 were taught with non-fiction and 16 were taught with fiction. Both groups were taught the same reading skills. Each group was given three pre-tests and three post-tests in which improvement in overall language proficiency and reading comprehension in the areas of main idea, direct statements and inferences was measured. Also, each group was observed for …

The Influence Of Functional Activities And Specific Curricular Domains On Choice In The Curriculum For Learners With Severe Handicaps, Mary Comfort Deboer

Dissertations and Theses

Literature is calling for the inclusion of choice into the curriculum for learner with severe handicaps, yet there are limited guidelines and materials for teachers to work with in longitudinal planning for choice.

The purpose of this study was to examine curricular elements in a sampling of existing programs and their relationship with choice. Three questions were asked within this analysis: (a) What relationship, if any, exists between the functionality of an activity and choice? (b) What relationship, if any, exists between a particular instructional domain and choice? and (c) What relationship, if any, exists between a teacher's judgement of …

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

Portland State Magazine

PSU’s alumni magazine, published quarterly. In this issue: Making improvements in our justice system is more than an academic exercise for PSU’s Administration of Justice; using a new fitness test, PSU researchers are finding safer ways for the elderly to exercise; History Professor Gordon Dodds writes a book on the first 50 years at Portland State; and more.

Focal Point, Volume 02 Number 04, Portland State University. Regional Research Institute

Research and Training Center - Focal Point

In the last two decades there has been a movement in the mental health field toward improved services to children and families who are members or" minority populations. Recognized as at risk and underserved, families of minority populations have repeatedly been the subjects of research and demonstration projects. Mental health professionals serving these children and families today are faced with the nagging question: "What constitutes appropriate services for minority clients?" Fortunately, the cumulative results of twenty years of work in this area are now becoming apparent. The knowledge base has grown and models for working cross-culturally have been developed and …

A Geochemical Study Of The Eagle Creek Formation In The Columbia River Gorge, Oregon, Rachel Ann Carlin

Dissertations and Theses

The Early Miocene Eagle Creek Formation, a series of volcanic mudflows and debris flows, is exposed in the Columbia River Gorge about 64 kilometers east of Portland, Oregon. Eighty-seven samples were analyzed using instrumental neutron activation analysis for trace element concentrations. Eleven samples were analyzed by Dr. Peter Hooper at Washington State University using X-ray Fluorescence for major element chemistry. These data were used to determine that the Eagle Creek Formation compositionally ranges from andesite to dacite.

Hospital Responses To A Nursing Shortage : Policy Issues And Professional Implications, Marlene Lobracco Smith

Dissertations and Theses

This study addresses three policy issues found in the literature: How can hospitals best manage the problem of shortages of the nursing home resource, how have federal policy makers responded to the mounting shortages, and how has the unique character of nursing influenced policy.

An analysis of existing hospital policy making is presented. An analysis of the class conflict within nursing is also presented. Data have been generated from a case sample of six urban hospitals in the Pacific Northwest to assess their management of the nursing resource during the critical shortages of the late 1970s.

Three response patterns have …

Hedonic Analysis Of Gasoline Retailing, Soleman A. Al-Bassir

Dissertations and Theses

Researchers have difficulty modeling the influence of retailing attributes on consumer choice. The literature of retailing that has dealt with this issue has conventionally used experimental data for estimating the influence of retailing attributes on consumer behavior. The present research applies hedonic analysis to the measurement of the value of retailing attributes. This is accomplished by applying hedonic specifications to supply and demand models for the retail sales of unleaded gasoline for the purpose of estimating the influence of specified retailing attributes on retail prices. Four retailing attributes-accessibility, convenience, service, and competition-were expected to have a determinable value that was …

Faculty Senate Monthly Packet June 1988, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The June 1988 Monthly packet includes the June agenda and appendices and the Faculty Senate minutes and attachments from the meeting held May 1988.

Geochemical Stratigraphy Of The Dooley Rhyolite Breccia And Tertiary Basalts In The Dooley Mountain Quadrangle, Oregon, David Neale Whitson

Dissertations and Theses

The Dooley Rhyolite Breccia in northeast Oregon was erupted between 12 and 16 million years ago, from central vents and linear feeder dikes within the Dooley Mountain quadrangle. The peraluminous, high-silica rhyolites of the formation were erupted over an irregular highland of eroded pre-Tertiary metamorphic rocks locally overlain by intracanyon, Eocene Clarno-type basalt flow(s). The Dooley Rhyolite Braccia is exposed in a tectonically disrupted, north-south trending graben across the Elkhorn Range. The formation is variable in thickness with maximum thickness exceeding 660 meters in the south and 600 meters in the north half of the quadrangle. Volumetrically the formation is …

Implementing Ray Tracing Algorithm In Parallel Environment, Tjah Jadi

Dissertations and Theses

Ray tracing is a very popular rendering algorithm in the field of computer graphics because it can generate highly-realistic images from three-dimensional models. Unfortunately, the computational cost is very expensive. To speed up the rendering process we present both static and dynamic scheduling (balancing) strategies for a multiprocessor system. Hence, the load balancing among the processors is the most important problem in parallel processing. The implementation of the algorithm is based on a modified octree structure.

The Effects Of Oral Conferencing And Written Comments On The Writing And Revisions Of Esl Students, Ann Louise Kirk

Dissertations and Theses

This study looked at the effect of written and oral comments on students' writing. The research hypotheses were that the use of oral comments would improve the overall quality of the students papers, increase the length more, and cause more changes in content than the use of written comments. On the other hand, the use of written comments would cause a greater decrease in grammatical errors in the students' papers than oral comments. The tests used to evaluate these hypotheses were the holistic writing scale used by the Test of Written English (TWE), a word count, a content percentage scale …

Effects Of Feedback And Goal Setting On Job Attitudes And Productivity: A Field Study, Stephen Kildahl

Dissertations and Theses

Two theories of work motivation taken from the field of Industrial/Organizational Psychology were compared in a six-week field experiment at a Fortune 500 company. A Job Enrichment Model (Hackman & Oldham, 1975) was used and the Motivating Potential Score (MPS) of three groups of machine operators was obtained before and after a six-week productivity study. Three goal conditions based on Goal Theory (Locke, 1968) were assigned one to each of three groups of machine operators and comparisons were made between the treatment groups. Production increases resulted from providing goals and feedback to subjects, but these increases were not statistically significant. …

Cheever's Signs : A Semiotic Approach To Thirteen Stories By John Cheever, Laurent Ditmann

Dissertations and Theses

Literary criticism dealing with John Cheever focuses on the social implications of Cheever's description of suburban America. The purpose of this thesis is to propose a new approach to Cheever's short stories, and to apply the concepts developed by French literary critics Jacques Derrida and Roland Barthes to thirteen short stories by Cheever.

Landscape And Change In Three Novels By Theodor Fontane, Jane Ellen Speerstra

Dissertations and Theses

This thesis traces and explicates the changes in Theodor Fontane's landscape depiction in the years 1887-1892. I examine his novels Cécile (1887), Irrungen, Wirrungen (1888), and Unwiederbringlich (1892). I show that Fontane, as though discarding a relic of the Romantic past, used increasingly less landscape in his narratives. He focused on the actions and conversation of his characters, and on their immediate surroundings. When these surroundings were urban, they tended to disappear. The progressive minimalization of landscape, and of cityscape in particular, foreshadowed the appearance in German literature of twentieth-century man: man alienated from nature in cities, and less aware …

Dc-Excited Cw Co₂ Metal Waveguide Laser, Fahad Saleh Al-Mashaabi

Dissertations and Theses

A novel design for a DC excited cw CO₂ metal waveguide laser has been developed in which a slotted hollow-cathode in a transverse discharge also doubles as a metal waveguide. This design has been implemented in a compact design that produces up to 1 watt of cw, 10.6 μm radiation. The discharge characteristics, laser gain and laser output has been studied as functions of various discharge parameters. The advantages of the new transverse discharge of the slotted hollow cathode geometry include low voltage, positive impedence and high optical gain. Overall efficiency is comparable with those of conventional longitudinal CO …

A Comparison Of Communication Intentions In Toddlers Between Sixteen And Thirty-Four Months Of Age, Mary Elaine Shiffer

Dissertations and Theses

The purpose of this study was to compare the frequency and range of communication intentions in normally developing toddlers and ELD toddlers. Data were gathered from ten minute video tapes of low structured parent/child interaction by coding twelve communication intentions commonly acquired in the first two years of life and expressed with five modes of communication.

Communication And Socialization Profiles In Toddlers With Expressive Language Delay, Shawn Spangle-Looney

Dissertations and Theses

The purpose of this study was to compare expressive communication, receptive communication, and socialization achievement in 18- to 34-month-old ELD toddlers to the same skills in normally-speaking children. The questions this study sought to answer were, how do the three skill areas in ELD toddlers compare with the same skills in normal toddlers?, will ELD subjects evidence specific profiles of deficits involving not only expressive but receptive and social skills as well? and, within the ELD subjects will two subgroups emerge, one group having poor expressive skills only, and a second group having deficits in addition to expression.

Hillsboro Union High School District Community Information Project, Daniel O'Toole, Sheldon Edner, Chuck Beadle, Jan Monroe

Center for Urban Studies Publications and Reports

The material below reports on the results of a contract between the Hillsboro Union High School District and the Center for Urban Studies, Portland State University. This contract reflects the District's desire for additional information concerning community ideas and perspectives on District programs. The District had suffered a series of levy defeats at the ballot box, despite significant budget reductions. The result was a major financial shortfall that produced significant program reductions, including the curtailment of athletic programs and busing services. The District's need was for a better understanding of not only specific citizen attitudes but also proposals that would …

Analysis Of Error Type, Source, And Gravity In The Writing Of Arabic Esl Students In U.S.A. Colleges, Fadel Mohammed Na'im Bader

Dissertations and Theses

The purpose of this study is to determine the type, possible source and gravity of errors found in the Test of Written English and Placement Tests compositions written by native speakers of Arabic at college level. The first part of the study is an error analysis designed to reveal the types of errors that are most frequently made by Arab students at college level. The sources of these errors are explained according to Richards' classification of errors as inter- and intralingual (1971). Seven types of errors are identified under interlingual category: articles, prepositions, the copula, embedded questions, pronoun retention, semantic …