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A Population Study Of Three Iris (Iridaceae) Species Native To The Siskiyou Mountains In Southwestern Oregon And Adjacent California, Carol Anne Wilson

Dissertations and Theses

The series Californicae is a natural grouping of Iris species native to Oregon, Washington and California. Natural and experimental hybridization is characteristic of the series which has led to confusing taxonomies for some species. Populations of species belonging to this series and found on the northwestern slopes of the Siskiyou Mountains cf southwestern Oregon and adjacent California were investigated. Methods used were numerical classification techniques for morphological characters including both discriminant and K-means cluster analyses and a chemotaxonomi c analysis of flavonoid pigments using thin layer chromatography.

The Geology Of The Floras Creek Area, Curry County, Oregon, Jon Dudley Bounds

Dissertations and Theses

The Floras Creek area, east of the town of Langlois, near the southwest Oregon coast, includes Colebrooke Schist (a klippe of metamorphosed pelitic sediments of Jurassic age), Jurassic Otter Point Formation (a melange complex), and lower the middle Eocene Roseburg and Lookingglass Formations, part of a sandstone-shale sequence occurring more extensively in other areas. The Colebrooke Schist occurs in the south-central part of the area, bounded on the Otter Point and Roseburg. The Lookingglass is exposed as a small (1.5 sq. km) block in the north-north-west part of the area. Two major structural trends are found in the Floras Creek …

A Geophysical Study Of The North Scappoose Creek, Alder Creek, Clatskanie River Lineament, Along The Trend Of The Portland Hills Fault, Columbia County, Oregon, Nina Haas

Dissertations and Theses

The Portland Hills fault forms a strong northwest trending lineament along the east side of the Tualatin Mountains. An en echelon lineament follows North Scappoose Creek, Alder Creek, and the Clatskanie River along the same trend, through Columbia County, Oregon. The possibility that this lineament follows a fault or fault zone was investigated in this study. Geophysical methods were used, with seismic refraction, magnetic and gravity lines run perpendicular to the lineament. The seismic refraction models indicate the near surface basalt is broken in many places, with 15 - 30 meters (50 - 100 feet) vertical displacement, down to the …

The Effect Of Dwarf Mistletoe (Arceuthobium Americanum) Upon A Portion Of The Carbon Budget Of Lodgepole Pine (Pinus Contorta), Nancy Ellen Broshot

Dissertations and Theses

Arceuthobium americanum is a vascular plant which is parasitic upon Pinus contorta var. murrayana. Its documented effects include reductions in host growth, vigor and wood quality. The specific physiological changes that occur in the host are, for the most part, unknown.

In an attempt to understand the manner in which the mistletoe alters its host's carbon budget, a model is proposed which states that the host plant has priorities for carbon allocation. The model proposes that the parasite will access the host's carbon initially in terms of carbon intended for storage, next, in terms of carbon intended for growth, …

Burt Brown Barker: His Role In Historic Preservation In Oregon, Mark Fredric Peterson

Dissertations and Theses

The field of historic preservation has undergone· extreme changes in recent years. Only in the last few years have schools, businesses, and the public been interested in preserving historic sites. Prior to this involvement, historic preservation was accomplished by a few individuals and patriotic groups. Since the field is relatively new, little has been researched and written regarding the early efforts of preservation. One man who emerged as a leader in the preservation movement in Oregon, for over thirty years, was Burt Brown Barker.

This thesis, through research of the files associated with five different preservation projects, examines the role …

Involvement, Social Class And Attrition In Higher Education: The Case Of The Stop Out, Terrence Scott Daugherty

Dissertations and Theses

This thesis tests the validity of three theories purporting to explain the attrition of stop outs -- why students interrupt their studies with the intent to return to school. Data were gathered at two schools, Portland State University and Reed College. Two theories, those of social class and involvement, were tested at each school as contending explanations of attrition by path analysis of parsimonious models derived by factor analysis. These theories were found to explain little of the variance of attendance pattern (less than 4.3 percent) at either school. No particular lines of causation could be demonstrated at either school. …

Attitudes Of Mental Health Professional Groups Toward Mental Health Treatment Modalities As Measured By The Semantic Differential Technique, Gene Stanley Morrill

Dissertations and Theses

The present research was conducted in order to ascertain whether differences in attitudes exist between the three main professional groups which are presently the major providers of mental health care -- psychiatrists, clinical psychologists, and social workers -- with respect to six treatment modalities: Individual Psychotherapy, Individual Counseling, Family Therapy, Group Therapy, Psychiatric Medication and Psychiatric Hospitalization. Modalities evaluated include treatments appropriate to a variety of individual, social and biological concepts of mental health/pathology. It was assumed that any such attitudinal differences might reflect biases in the provision of mental health treatment and therefore be an important concern for consumers …

Faculty Senate Monthly Packet November 1982, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 1982 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 1982.

The Effects Of Overt And Covert Observation On The Clinical Behavior Emitted By Untrained Clinicians, Carol L.K. Middleton

Dissertations and Theses

This study examined the effects overt and covert observation of live clinical sessions have on the number of social/ neutral verbal behaviors emitted by untrained speech clinicians and their respective clients enrolled Summer Term, 1980, in the Articulation and Language Clinic at Portland State University, Speech and Hearing Sciences. The Boone-Prescott Interactional analysis System (Boone and Prescott, 1972), a numerically coded system, was used to record clinician-client interactions. Data were obtained for a randomly selected five minute period from each of forty clinical sessions.

Effects On Electrolytic Cells Of Magnetic Fields Applied To Single Electrodes, Craig Allen Cousins

Dissertations and Theses

The primary goal of this research was to investigate the effects associated with the application of magnetic fields to single electrodes.

Portland State Perspective; Fall 1982, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: School of Engineering and Applied Science; colored pencil art; PSU alumni in Hollywood; budget news.

Aspects Of Anuran Metabolism: Effects Of Chronic Hypoxia On Maximal Oxygen Uptake Rates And The Fate Of Lactic Acid, Thomas Charles Solberg

Dissertations and Theses

Some aspects of anuran metabolism are examined, with special emphasis on possible limitations to aerobic metabolism and the effect of chronic hypoxia acclimation on maximal rates of aerobic metabolism and the metabolic fate of lactic acid accumulated after anaerobic metabolism.

The Effect Of Causal Attribution And Self-Evaluation On Mood, William N. Werner

Dissertations and Theses

The present study was designed to test the causal locus hypothesis, and to develop and explore the self-evaluational hypothesis. The causal locus hypothesis is based on attribution, which is a person's perception of cause. The hypothesis holds that persons making internal attributions (self-caused) for failure end external attributions (not self-caused) for success experience more negative postoutcome mood than persons making external attributions for failure and internal attributions for success. The hypothesis was derived from major theories or attribution, but was not experimentally tested until recently (Wollert et al., 1981).

Anuran Activity Energetics, Scott R. Landrey

Dissertations and Theses

This thesis presents two separate experiments concerning aerobic and anaerobic amphibian energetics. The first study (Part I) investigates differential alterations in the kinetics of the anaerobic enzyme lactate dehydrogenase, in nine species of anurans with varying natural histories. The second study (Part II) studies changes in different anaerobic and aerobic physiological parameters in a single species (Rana catesbeiana) after six weeks of chronic exercised, unexercised-captive and for field frogs. The common theme of these two experiments involves the potential for physiological changes due to environmental stress. Part I examines different species to infer a possible evolutionary relationship to …

Log Structures: Criteria For Their Description, Evaluation And Management As Cultural Resources, Margaret L. Glover

Dissertations and Theses

This thesis discusses mining cabin sites from the nineteenth and early twentieth centuries as cultural resources. Special attention is given the concept of "description" in regards to discussion of the resource category, history, and physical attributes of the sites. Evaluation and management suggestions are presented for this particular resource category. To aid in the process of identification of log cabin notching, a typology of notches is developed and presented within the context of the thesis.

Congressional Power And Presidential Prerogative: The War Powers Question, Gerald Michael Worley

Dissertations and Theses

This thesis is a study of the formulation of American foreign policy in general terms and specifically how hostility is initiated. War powers and who controls this authority is an age-old question. One can not simply look to the Constitution for direction. An intricate formula is necessary and the evolution of the nation must be understood.

Factors Affecting Thyrotropin Secretion In Superfused Rat Anterior Pituitary Cells, Frederick Scott Bartlow

Dissertations and Theses

The use of static in vitro pituitary cultures has been indispensible for examining the regulation of anterior pituitary hormone secretion. While the static cultures have shown the effects of various chemical stimulators of hormone secretion, the dynamics of such secretion has not been assessed before in vitro. The in vitro superfusion method, which partially stimulates in vivo physiologic conditions, allows for the observation of the dynamics of pituitary hormone secretion.

Hemisphere Side Of Damage And Encoding Capacity, Margaret Ellen Davis

Dissertations and Theses

This study was designed to examine whether normal information processing does engage both hemispheres of the brain regardless of sensory channel (i.e., auditory or visual), and whether an opportunity for dual encoding (verbal and visual) was advantageous for patients with unilateral brain damage. It compared memory for verbal material presented in the visual and auditory modalities among three groups: right hemisphere brain damaged stroke patients (RBD), left hemisphere brain damaged stroke patients (LBD), and neurologically intact control subjects.

Only control and LBD subjects benefited from the visual presentation compared with auditory. Controls did generally better on both modes than either …

An Investigation Of Cadmium And Sulfur Reactions In Dimethylsulfoxide, Howard W. Hogle

Dissertations and Theses

The study of the reaction of cadmium and sulfur in dimethylsulfoxide (DMSO) is presented. Specifically, the reaction of dissolved molecular sulfur in DMSO at temperatures greater than 90°C with freshly precipitated metallic cadmium is followed by UV-visible spectrometry, atomic absorption spectrometry, and Raman spectrometry. Evidence for the formation of a new cadmium-sulfur species and S₃^- is discussed. In a second reaction, an equilibrium sodium polysulfide solution in DMSO is titrated with a solution of cadmium ion at room temperature and the reaction progress is followed by means of UV-visible spectrometry. A calculation of the average number of polysulfide …

Hydroxide Binding Equilibrium In Hemerythrin, John David Mccallum

Dissertations and Theses

The measurement of the equilibrium constant and the thermodynamic parameters of the binding of hydroxide ions to the active site of hemerythrin, an invertebrate iron containing protein, was done by a new difference spectroscopic method. The method enables accurate measurements of equilibrium constants without accurate knowledge of molar absorptivities or protein concentrations and is novel in that it takes the difference between the two equilibrium mixtures, thus enabling the measurement of equilibrium constants when it is not convenient or possible to produce either substance as a pure reference material.

Germany, Mexico, And The United States, 1911-1917, John Joseph Leffler

Dissertations and Theses

The thesis focuses on Germany's Mexican policies from 1911 to 1917, with particular attention given to the connection of these policies to political relations between the United States and Germany and between the United States and Mexico. The paper also attempts to place German activities in Mexico within the context of Germany's desire to promote its political and economic interests on a worldwide scale. Although some unpublished sources were consulted, the account relies mostly on published documents, memoirs, and secondary sources for its factual basis.

After a brief discussion of trends in German-Amercan relations during the years leading up to …

Rain, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 8, Number 9

Inside: Community Communications; Good News from Ghana

RAIN began in October 1974 as a publication of ECO-NET, an environmental education network funded by the Hill Foundation and an Environmental Education grant. Its office was based in the Environmental Education Center at Portland State University. With a focus on the Pacific Northwest, particularly Oregon, RAIN originally described itself as a “bulletin board” with an “emphasis on environmental/energy related and communications kinds of information” and interested in “the evolutionary possibilities of inter-disciplinary connections.”

Extraversion-Introversion And Sensitivity To Nonverbal Cues, Virginia Seiser

Dissertations and Theses

Sixty-five college students completed the Profile of Nonverbal Sensitivity (PONS) and the Eysenck Personality Questionnaire. The results did not support the hypothesis that introverts would be found to be relatively more sensitive to negative nonverbal cues than to positive cues, and that this difference would be greater for introverts than for extroverts. The outcome did not support predictions concerning the relationship between sensitivity to nonverbal communication and extroversion- introversion based on either Gray's fear-frustration hypothesis or Eysenck's general conditionability hypothesis of extroversion-introversion.

The results supported findings of earlier researchers that females are more sensitive to nonverbal cues than males, and …

Marital Interaction And Spousal Health And Well-Being, Ralph Arthur Schmoldt

Dissertations and Theses

An attempt is made to determine whether marital interaction is related to the health and well-being of husbands and wives and, if such a relationship exists, to explore the nature of the relationship. The dimensions of marital interaction of interest include cohesion, companionship, cooperation, and consensus. Cohesion is manifest in the feelings a couple has about their relationship. Companionship and cooperation are seen in a couple's joint activities. A shared outlook on life represents consensus.

1982 Commencement Program, William Stafford

Commencement Archives 1980-89

The program for the Portland State University 1982 Spring Commencement ceremony, held at Memorial Coliseum on June 13, 1982, in Portland, Oregon.

Opening statement by William Stafford, Poet Laureate of Oregon.

Correlates Of Sophisticated Listener Judgments Of Esophageal Air Intake Noise, Vincent Eccleston

Dissertations and Theses

The literature on esophageal speech has identified the problem of extraneous air intake noise, suggested its possible etiology, and provided practical advice for clinical management. Documentation on the efficacy of specific methodology is lacking in the literature. Such documentation would be simplified if objective criteria were used to rate the severity of intake noise. The present study was prompted by the lack of basic data regarding listener evaluation of intake noise.

The purpose of this study was to identify physical and perceptual correlates of acceptability of esophageal air intake noise. A primary and a secondary question were asked:

Are selected …

Acoustical And Perceptual Correlates Of Vocal Effort In Normal Hearing And Hearing-Impaired Children, Corinne A. Thomas-Kersting

Dissertations and Theses

The present study was designed to investigate the perceptual and spectrographic features of vocal effort in the speech of severely to profoundly hearing-impaired children and their normal hearing agemates. Recorded vowel and speech samples were obtained from ten normal hearing children, ten severely to profoundly hearing-impaired children attending Oral/Aural educational programs, and eight severely to profoundly hearing-impaired children attending Total Communication programs. The degree of perceived vocal effort for vowels and speech was evaluated, using a nine point equal-appearing-interval scale. In order to obtain a physical measurement for vocal effort, a digital wave analyzer was used to produce vowel spectra, …

Feeding And Food Selection In The Japanese Oyster Crassostrea Gigas, Rickey D. Moore

Dissertations and Theses

The Japanese oyster Crassostrea gigas is commercially grown in bays and estuaries of the Pacific Northwest. The oyster's complex, ciliated, plicate gill is responsible for removing particles from surrounding waters for ingestion. In order to determine how this is accomplished, structural interrelationships of gill components were investigated using scanning electron microscopy and light microscopy. Particle movement was observed directly on both isolated gill sections and intact gills. Feeding data were obtained by comparing initial to final concentration and size of algal particles in a Coulter counter.

Desertion Of Elderly By Adult Children, Jill C. Harvey

Dissertations and Theses

This study examines the widely prevalent belief that adult children desert their elders.

Data which suggested considerable family support of elderly family members were collected over a period of one year through counseling families with dependent parents. These families exhibited confusion and lack of knowledge but not desertion.

A Change In Pass/Fail Criterion On The Mini-Screening Language Test For Adolescents, Denice Lynn Palmer Milholland

Dissertations and Theses

This study was designed to determine whether varying criterion for pass/fail on the Mini-Screening Language Test for Adolescents (Mini-STAL) would increase accuracy of predicting outcome of the Screening Test of Adolescent Language (STAL). The Mini-STAL was developed by Prather et al. (1981) to identify rapidly those students between grades six through twelve who are in need of language intervention. Using Prather's established criterion (one or more errors equal failure), the Phoenix school district (Prather, 1981) found too many of their school population (20 percent) were failing the Mini- STAL. Thus, they established an experimental criterion (two or more errors equal …