Digital Commons Network^™

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 Although some unpublished sources were consulted, the account relies mostly on published documents, memoirs, and secondary sources for its factual basis.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 …

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.

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 …

Investigation Of Blood Pressure Measurement Using A Hydraulic Occlusive Cuff, Kusha R. Bhattarai

Dissertations and Theses

This thesis presents an improved oscillotonometric system for the measurement of human blood pressure. The study included:

1. The design of a hydraulic occlusive cuff,

2. The investigation of the wave forms taken from the blood pressure measurements, and

3. The design of a mechanism for the simulation of human blood pressure pulse.

In this study, an experimental system consisting of a rigid shell occlusive cuff, a constant volume displacement pump, a transducer, and a chart recorder was designed and used for data collection.

Language Development And Visual-Motor Integration In The Preschool Child, Andrea Lynn Perry Graham

Dissertations and Theses

The purpose of this study was to compare the visual-motor integrative abilities of preschool children with their articulatory and syntactical development. Two questions were posed: Do children having accelerated visual-motor integrative skills perform at a higher level than children having delayed visual-motor integration skills in 1) their articulation proficiency, and 2) their syntactical abilities?

Geology And Hydrothermal Alteration, Glass Buttes, Southeast Oregon, Dulcy Annette Berri

Dissertations and Theses

The Glass Buttes volcanic complex consists of many domes and individual vents that erupted both rhyolitic and basaltic lavas during the late Miocene to early Pliocene. The east half of the complex, in the vicinity of Little Glass Butte, contains interfingering, finely flow-banded rhyolite and black obsidian flows. The youngest unit, an obsidian, has been dated at 4.9 m.y. East of Little Glass Butte lie two northwest-trending ridges, Antelope and Cascade Ridges, composed of two or more overlapping exogenous domes that formed along northwest-trending faults.

An Investigation Of The Effects Of Self-Disclosing Communication On Attraction-To-Group In The Small Group Setting, Pamela Walker Vredevelt

Dissertations and Theses

A review of the literature on self-disclosure and small group communication showed that few investigations dealt with the effects of disclosing communication on small group process. The present study was conducted in order to assess the effects of the frequency of self-disclosure within small groups on the members' overall attraction to the group. 120 subjects were selected from the East Hill Church senior high youth department in Gresham, Oregon. Subjects were placed at random into ten small groups with twelve members each which met for one-half hour per week for six consecutive weeks. All group communications were audio tape recorded. …

The Descriptive Function Of Language: Changes With Age And Pressure To Inform, Eve Susan Liebman

Dissertations and Theses

Currently language is viewed as a multi-dimensional construct, consisting of three interrelated components; content, form and function (Bloom and Lahey, 1978). In recent publications, language function has been referred to as pragmatics (Prutting, 1979). The essence of pragmatic theory is that language is used functionally in social contexts, to accomplish specific types of communication (Wood, 1981). One such communicative function is referred to as the informative function, which occurs when a speaker provides ideas and information to others, as in describing, naming and giving examples {Wood, 1981). It is not clear, however, when children become competent in making specific, clear …

A Comparison Of Two Language Screening Instruments In Two Populations, Karen Kumpula-Lacey

Dissertations and Theses

Screening has been suggested as the most efficient method to find students with potential language problems (Neidecker, 1980). Based on the need for a standardized adolescent language screening tool, Prather, Breecher, Stafford, and Wallace (1980) developed the Screening Test of Adolescent Language (STAL). This is a six to eight minute test with twenty-three items which examine vocabulary, auditory memory span, language processing, and proverb explanation. Following an item analysis of the STAL, Prather, Brenner, and Hughes (1981) derived the Mini-Screening Test of Adolescent Language (M-STAL). This test contains five items from the STAL and requires one minute to administer.

An Empirical Analysis Of The Shift/Share Technique For Employment Forecasting, Larry Mccord

Dissertations and Theses

This research project has developed out of the desire to empirically test and evaluate the technique of shift/share analysis as applied to employment forecasting. Shifts in economic growth and more recently, the fast growth patterns on the West Coast have required the development of analytical techniques to forecast regional employment growth. Several methodologies have been applied to this problem including: regression analysis and trend extrapolation, economic base studies, and shift/share analysis.

Developing A Test Of Communicative Competence For English As A Second Language Students At The College Level, Kristen Kern

Dissertations and Theses

The purpose of the research was to develop a test of oral communicative competence for English as a Second Language (ESL) students at the college level.

This research first reviewed the current literature on the topic of communicative competence from the perspectives of linguistics and sociolinguistics, discourse analysis, and speech communication. The 1iterature on testing for communicative competence within the ESL and foreign language teaching fields was also reviewed. A 7-minute oral semi-direct taped test was then developed and administered to a trial group of 5 ESL students and a final group of 25 ESL students at Portland State University. …

A Geochemical Study Of The Rhododendron And Dalles Formations In The Area Of Mount Hood, Oregon, Marshall W. Gannett

Dissertations and Theses

The Miocene Rhododendron and Dalles Formations in the Mount Hood area are accumulations of chiefly pyroclastic andesitic material, largely confined to the Dalles-Mount Hood syncline. These very similar units are geographically separated by overlying andesites including the present Mount Hood cone, and past workers have suspected that they may share a common source. Prior to this study, few geochemical data were available for the Rhododendron and the Dalles Formations, compared to the well studied Columbia River basalts underlying them and the overlying Pliocene andesites. This geochemical study was designed to investigate certain aspects of the Rhododendron and Dalles Formations such …

A Comparison Of The Effects Of Non-Operant And Operant Carryover Techniques For /L/, Michelle Ann Tremblay

Dissertations and Theses

Developing strategies to promote effective carryover is one of the most difficult tasks a clinician faces. Mention has been made in the literature of possible activities to use in the clinical setting to promote carryover. Suggestion has been made in the literature that operant conditioning is a technique which can be employed to achieve carryover. The purpose of this investigation was to determine whether there is a difference in relative effectiveness between operant and non-operant techniques for achieving carryover of /l/.

A Study Of Art Education In The Elementary School Curriculum As Amplification Of Other Academic Subjects And As A Promoter Of Creativity In The Learning Process, Jana Demartini-Svoboda

Dissertations and Theses

The goal of this thesis was to identify teaching interrelationships between art and other subjects in the elementary school curricula and thus indicate the usefulness of art education in the educational process.

The Pursuit Of Form, Robert Allen Anderson

Dissertations and Theses

This thesis includes the work of Robert Allen Anderson for a Master of Fine Arts in Sculpture.

Adjustable Systems In Wood, James Richard True

Dissertations and Theses

A Thesis Report Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Fine Arts in Sculpture.

Teaching Figure Drawing To Adolescents Within The Context To [I.E. Of] Imaginative Compositions, As A Means Of Increasing Artistic Confidence And Abilities, Christine Flavell Turner

Dissertations and Theses

This thesis describes a process of teaching figure drawing to adolescents which places importance on the subjective experiences of the students. Traditional figure drawing methods emphasizing the development of visual perceptual skills are integrated with activities which are designed to secure emotional participation, and develop awareness of art as a means of expression and communication. This approach seems to motivate students and to reduce the anxiety usually experienced by adolescents when they are drawing the figure.

Structure And Influence Of The Tillamook Uplift On The Stratigraphy Of The Mist Area, Oregon, Moinoddin Murtuzamiya Kadri

Dissertations and Theses

Fifty three sedimentary samples were analyzed for their minor and trace element concentrations utilizing instrumental neutron activation analysis. Concentrations of Na, K, La, Sm and Sc, and their ratios appear to establish significant trends. The data suggest a major break from a granitic-metamorphic provenance and a volcanic component dominated provenance between the Cowlitz and Keasey Formations respectively. The provenance of the Astoria Formation indicates the presence of flood basalts.

The Stratigraphic Relationships Of The Columbia River Basalt Group In The Lower Columbia River Gorge Of Oregon And Washington, Terry Leo Tolan

Dissertations and Theses

The purpose of this study was to produce a detailed geologic map of the CRBG in the western portion of the Columbia River Gorge (fig. 1). The objectives were (1) to identify and delineate the extent of the Priest Rapids Member and Pomona Member intracanyon flows, and (2) to define the relationship of post-CRBG units to the CRBG intracanyon flows.

A Preliminary Investigation Of The Lithological Characteristics Of The Troutdale Formation In Portions Of The Camas, Sandy, Washougal, And Bridal Veil Quadrangles, David Lee Cole

Dissertations and Theses

The study area encompasses a region of about 80 square kilometers, centered about Corbett, Oregon. Sieve analyses suggest that the Troutdale Formation is composed of a conglomerate, a coarse-grained sandstone, and a siltstone lithofacies. Measured sections data show that 56 to 60 percent of the Troutdale Formation's exposures are composed of the conglomerate lithofacies. The coarsegrained sandstone lithofacies makes up 34 to 38 percent, while the siltstone lithofacies makes up only 4 to 8 percent. Pebble count data show that the representation of basalt varies from 69 to 100 percent, with an average of 85 percent, while quartzite varies from …

Social Support And Well-Being In Middle-Aged And Elderly Spinal Cord Injured Persons: A Social-Psychological Analysis, Susan Dee Decker

Dissertations and Theses

Advances in health care science are enabling greater numbers of spinal cord injured persons to live to old age. As these persons grow older, there may be additional problems in coping due to stressors such as decreasing health and income and loss of significant others. The purpose of this study was to determine those factors that contribute to the well-being of middle-aged and elderly community-residing spinal cord injured persons. One hundred spinal cord injured persons ranging in age from 40 to 73 were interviewed. Extensive data were collected in order to investigate the relationship among social support, types of social …

The Measurement Of Economic Diversification With Reference To Regional Unemployment, Adil H. El-Haimus

Dissertations and Theses

Over the past four years, considerable attention has been focused on the problems of high unemployment in the State of Oregon. The percentage of jobless continued to be higher than that of the nation. The depressed housing market, caused by high interest rates, coupled with an increase in the import of Canadian timber managed to reduce the demand for Oregon lumber and wood products drastically. This has resulted in an abnormally high unemployment rate in many of Oregon's counties which are dependent on the wood industry; for example, the 1980 jobless rate in Harney County reached a record high of …

A Study Of The Personality Characteristics Of Tinnitus Patients, Gloria E. Reich

Dissertations and Theses

A short form of the Minnesota Multiphasic Personality Inventory was administered to 146 clinical patients who suffered from either tinnitus or a hearing disorder or both. Patients were assigned to four groups on the basis of their subjective complaint and their audiometric report: patients with tinnitus only, patients with tinnitus and a hearing loss where the tinnitus was the primary complaint, patients with tinnitus and a hearing loss where the hearing loss was the primary complaint, and patients who had a hearing loss but no tinnitus. The purpose of the study was to determine whether there were certain measurable personality …