Digital Commons Network^™

An Automatic Rinse Tank Controller For Industrial Applications, Aliasghar Emami

Dissertations and Theses

This thesis describes an automatic Rinse Tank Control System used in detection and removal of contaminating agents from industrial plating rinse tanks. It automatically monitors the purity of the rinse water in sixteen separate rinse tanks, and permits fresh water to enter the tanks only when the conductivity of the rinse water in each tank exceeds a predetermined level. Its use will result in large savings in consumption of fresh water and the subsequent reduction in discharge of effluent to the treatment plants.

Negotiation Within The Therapist-Client Interview, Rhoda Elaine Estep

Dissertations and Theses

This thesis combines a theoretical perspective and a methodological technique in order to clarify the concept of negotiation. The theoretical perspective represents a merging of a formal analysis as suggested by Georg Simmel and Erving Goffman and an interactional emphasis upon reciprocity of actions as proposed by Herbert Blumer. Accordingly, a methodological scheme was constructed to examine negotiations in terms of their forms and content.

Differential Measurement Of A Language Concept Presented Via Video Tape Playback To First Grade Students, Richard Warren Trullinger

Dissertations and Theses

Educational television began in 1932 at the State University of Iowa. Until 1952, the potential of its contributions to education were not fully recognized. In 1952, however, the Federal Communication Commission created non-commercial television station. From that point in time, educational television has mushroomed.

This study tested the hypothesis: At least 80 percent of a given first grade population will respond accurately to the post-testing of a language concept, after the concept has been presented to them via a video tape playback using puppetry as the teaching method. In essence, the study was designed to determine whether or not an …

Survey Of Parental Attitudes Towards Health Services In The Beaverton Schools, Nancy M. King

Dissertations and Theses

The purpose of this study was to collect and evaluate information on health services provided to children enrolled in the Beaverton School District. The primary areas of inquiry in the study were (1) parents attitudes concerning how existing programs have affected their children, (2) parents perceptions of needed and/or additional health services which could be provided by the school system, (3) parents attitudes toward budgetary decisions concerning possible changes and improvements in health services.

Portland State Perspective; June 1974, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: new president Joe Blumel outlines priorities; higher education financing; academic collective bargaining; Portland theater scene; puppets and learning; financial aid prospects

Development Of A Teacher Rating Instrument: Methodological Implications, Carole Gygi

Dissertations and Theses

In order to gain a more comprehensive understanding of the complexities which constitute an effective teacher and promote a positive learning climate, a field study methodology was employed to develop an evaluative instrument and to gain descriptive data.

For the purpose of developing an instrument to describe and measure effective teachers, 24 actual learning sessions (classes) were observed, extensive notes taken, and tape recordings were made in order to isolate and describe the behaviors which seemed critical to the situation being studied. This was done by observing the teacher as he taught and the learners while they learned. The teacher …

Danish Day Care As A Social Institution, Albert Sessions Belais, Ellane L. Kibel

Dissertations and Theses

A study of the social and cultural aspects of day care in Denmark. The thesis hypothesizes that experiences in the development of Danish day care are relevant to the future development of day care in the United States.

Interest in Danish day care was stimulated by the reports of Drs. Marsden and Mary Wagner (1970) which found Danish day care provided an intimate and innovative standard of care for young children.

Twenty centers of widely varied types were visited in Denmark. Information was gathered largely through unstructured interviews with child care staff and non-participant observation. Special attention was paid to …

The Value Of Color Systems In Education, Shirley Jo Brehm

Dissertations and Theses

Color is with us everywhere, all the time. It is an integral part of our existence. Sensitivity to color and awareness of color's physical and psychological qualities is undeveloped in the normal, average human being. What can be done about this? Where can it be done? The answers to these two questions form the basis for this thesis. Color awareness as part of visual education and environmental sensitivity can be taught and should be taught in every educational institution. The key to BUCcessful instruction is informed, knowledgeable, color sensitive teachers and the exposure of students to workable color systems. Color …

Water Quality Within East Portland Terraces, Fouad Mohamed Tawfik

Dissertations and Theses

Groundwater from thirty-three wells which are randomly distributed within 42 square miles of the residential, agricultural and industrial area of East Portland Terraces have been analyzed. The area is moderately wet with an annual precipitation of about 37 inches. Residual and transported sediments from different sources, dominantly volcanic, comprise the subsurface lithology. The sedimentary units that were deposited by means of rivers and lakes have filled an original structural and erosional valley in the area. This relatively unconsolidated valley filling is about 900 feet of predominantly lenticular, stratified and cross-bedded lenses of clay, silt, sand, gravel, cobbles and boulders.

The …

Heat Transfer Across Carbon - Liquid Helium I Interface, Constantine Antonopoulos

Dissertations and Theses

Carbon samples were electrically heated while immersed in liquid helium I. Their temperature rise was observed on an oscilloscope as a function of the time after the onset of the electric current. There was no indication of the temperature overshoot previously reported for the case of bismuth in liquid helium.

Reasons are presented for the difference in behavior of carbon and bismuth.

An Investigation Of The Development Of The Phonemes /T/ And /K/ In The Speech Of Preschool Children, Glenn Douglas Weybright

Dissertations and Theses

Research regarding children's instrumental articulation development has provided the speech clinician with schedules of speech sound development. These developmental tables list ages when specific phonemes are mastered by normal children. Such schedules tend to give the impression that certain sounds must be developed before others can occur. Menyuk (1972) has expressed a similar point of view regarding phonemes /t/ and /k/. She has hypothesized:

1. that phoneme /t/ must develop before phoneme /k/; and
2. that sound element initial /t/ is mastered at an earlier age than initial /k/. The present investigation was designed to operationally test the validity of Menyuk's observations. …

The Digital Multifunction Power Measuring System, Ralph Warren Shoemaker

Dissertations and Theses

The Digital Multifunction Power Measuring System is the outgrowth of a project involving the design of a prototype precision Digital Watt Transducer for the Bonneville Power Administration (BPA). A prototype Digital Watt Transducer was built and tested since no other device of the desired accuracy was commercially available. Upon partial completion of the project, another Watt Transducer did become available which was essentially identical to our development. Since we could not economically compete with the manufacturer of these Watt Transducers, our project was stopped. Over a period of several months we thought about other ways to apply the experience gained …

Impact Of College Speech Classes On Listening Skills Of Students, Candice Piazza

Dissertations and Theses

The purpose of this study was to determine the impact of college speech classes upon developing improved listening skills. More specifically it sought to determine the extent to which the students who took Speech 100 or 111 have acquired listening skills.

There has been considerable theorizing concerning listening and auding with only a scattering of experimentation. According to existing data, listening would appear to be a complex human behavior that is only partially understood. There are, however definite listener functions, listening conditions and variables that affect listening. Aspects of attention are also important when considering the occurrence or unoccurrence of …

Vibration Damping Characteristics Of Typical Harpsichord Strings, Jack Lee Simmons

Dissertations and Theses

Present-day builders of harpsichords disagree as to the use of iron or carbon-steel wire in their attempt to duplicate the tonal qualities of the early 16th century instruments. The variations in tone produced by vibrating iron and steel wires may be due, at least in part, to differences in their decay characteristics. A wire was set into vibration by placing a section in a magnetic field and passing a variable-frequency alternating current through it. A condition of resonance was established by appropriately selecting frequencies, lengths, and tensions that would simultaneously satisfy the relationship: fr = n/2L(T/p)1/2. Then measurements of decay …

Curanderismo And Health Delivery Services, Jean Margaret Blaesser

Dissertations and Theses

This study explores and describes curanderismo (folk curing) and the cultural disease concepts of mollera caida, empacho, mal de ojo, and susto as researched in a rural Oregon community. Chicano cultural disease concepts and beliefs are then related to modern health delivery services, and a case is made for the need for cultural awareness, respect, and sensitivity on the part of medical personnel who deliver services. The approach of a curandera (curer) and a doctor are compared.

It is strongly stated that Chicanos' health beliefs and practices do not exist in isolation from the rest of their …

Age, Intelligence, And Socioeconomic Status Variance In Preposition Acquisition By Children, Georgie Hustead

Dissertations and Theses

Numerous linguistic studies have been done to substantiate the importance of prepositions in the English language. However, no normative studies have been done on the acquisition of expressing prepositions.

The purpose of this investigation was to determine if there were demonstrable trends which would indicate a need for normative data on the acquisition of twenty-six prepositions tested on the Expressive Preposition Test (EPT). The study set out to determine at what age levels a given percentage of the prepositions were expressively acquired and if the socioeconomic status (SES) of the child’s family would be a determiner as to the age …

"Getting Our Language Back", William Edgar Stafford

Special Collections: Oregon Public Speakers

No abstract provided.

An Exploratory Study Of Depression In Adolescents Placed In Residential Treatment Centers, Shirley D. Hale, Kermit C. Jeffrey, Gerald J. Moneke

Dissertations and Theses

Concerned that depression might be a common malady among youth who are placed in treatment centers for delinquents, we undertook an exploratory study to determine the validity of this premise. The authors of this study have all worked with youth who, for various reasons, have been placed in residential treatment centers. The authors have observed that symptoms of depression seem to be more prevalent in these youth than in non-institutionalized adolescents, and that these symptoms are often perceived as individual pathology rather than emotional responses common to institutionalized youth. We thus began questioning if these were common emotional responses, and …

A Mineralogical And Geochemical Study Of The Ferruginous Bauxite Deposits In Columbia County, Oregon, And Wahkiakum County, Washington, Ronald Laverne Jackson

Dissertations and Theses

Wet chemical analysis and instrumental neutron activation analysis (INAA) were performed on a suite of samples from three residual ferruginous bauxite profiles in the study area for abundances of Al₂O₃,

SiO₂, Fe₂O₃, Ti O₂, Na, Sc, Hf, Cr, Co, La, Sm, Yb, Lu, and Th. In addition a mineralogical study accompanied this research, using petrographic, differential thermal, and x-ray diffraction techniques. In each profile, the relative mobility of these elements were calculated by empirical methods for comparison with the parent rock and mineral properties in the saprolite.

This …

The Costs Of Sprawl: Environmental And Economic Costs Of Alternative Residential Development Patterns At The Urban Fringe , Real Estate Research Corporation

Portland Regional Planning History

Local government officials devote a large proportion of their time to considering and acting upon development proposals which substantially affect their communities in many ways. While information bearing on development proposals has been increasingly broader in scope, more specific, and of higher quality, local government officials continue to have considerable difficulty in assessing the relative merits of alternative types of housing, general development patterns, and commercial strip versus center developments. To help compensate for this knowledge deficiency, the Council on Environmental Quality (CEQ), in cooperation with the Department of Housing and Urban Development (HUD) and the Environmental Protection Agency (EPA), …

Interaction Patterns In The Campground, Dennis Lee Rockwood

Dissertations and Theses

The purpose of this project was to examine interaction patterns in various campground settings and to elaborate on camping literature which has suggested that the campground is a social event with high rates of interaction. In exploring this phenomenon, this report utilized observational techniques to document the temporal, spatial, familiarity, numerical, and behavioral dimensions of the observed interactions.

The data suggested that young adults and middle-aged persons were observed to be involved in, and initiated the highest proportions of, interactions. In general, males displayed far greater proportions of initiations than females. The highly developed campground exhibited higher proportions and rates …

The Effectiveness Of Induced Location Of Manufacturing Industry As A Means Of Fostering Sustained Economic Growth In Less Developed Regions Of Oregon, Leland F. Smith

Dissertations and Theses

The subject of this thesis was chosen from both a professional and an academic interest in the economic development of Oregon. Prompted by proposals made to the Oregon Legislature to initiate various forms of industrial subsidy programs to disperse economic growth and population away from congested areas, this research effort seeks to provide an evaluative analysis of the effectiveness of subsidy techniques in influencing industrial location and stimulating a sustained growth process in less developed areas.

Research was undertaken in two primary subjects: 1) theory of regional economic development and the effects of subsidies on the growth process; and 2) …

Knowledge And Use Of Social Services In Gervais, Oregon, Elizabeth Lewis, Abby Maier, Lajuana J. Morton

Dissertations and Theses

During first year field placement, we worked with a number of rural families, most of them Mexican-American. It seemed to us that rural families in general and Mexican-Americans in particular were not being very well served by social service agencies. We questioned whether this might be due to a lack of Mexican-American perspective in traditional services or perhaps a lack of Mexican-American manpower or at least Spanish-speaking manpower.

This study, then, developed out of a general area of interest that can be stated as three questions: (1) Do rural people (especially Mexican-Americans) feel there is a need for various social …

Commentary On The Film "The Sorrow And The Pity", David Wrench

Special Collections: Oregon Public Speakers

David Wrench was Professor of Psychology and Urban Studies at Portland State University. Dr. Wrench discusses the film The Sorrow and the Pity (1969) from a social-psychological viewpoint, in contrast to the moralistic view of the other conference speakers. He sees history and psychology as closely related which has led to his special interest in psycho-history. His comments include a discussion of how people distort their perceptions of history, and the differences shown in human responses to authority and group pressure.

Intelligibility Of Speech Compared Through Two Limiter Compression Circuits, Lee M. Odell

Dissertations and Theses

Hearing aid manufacturers commonly engineer automatic gain control (AGC) circuits which are aimed at reducing sound tolerance problems and improving speech intelligibility among wearers. The most common type of AGC engineered is one utilizing a fast attack time. The present study was designed to evaluate the effects of both fast and slow attack times on the intelligibility of speech. Twenty-four normal hearing subjects listened to sixty pre-recorded sentences through two types of hearing aid circuits. Thirty sentences were modified by a fast attack AGC circuit, and thirty sentences were modified by a slow attack AGC. The subjects marked one of …

"Interpretation Of The French Resistance", Michael F. Reardon

Special Collections: Oregon Public Speakers

No abstract provided.

Portland State Perspective; February 1974, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: PSU marks fifth anniversary; updates on presidential search; Summer Session 1974; a feature on Bill Lemman; retired professionals; study on graduate characteristics; State Board of Higher Education comments on institutional review

Social Action As Social Change Through A Process Of Insulation, Leonard Siegfred Nelson

Dissertations and Theses

This study has attempted to investigate the radical change in the Greater Portland Council of Churches’ (GPCC’s) organizational goals and actions--from its relative uninvolvement over to its preoccupation with local social, political and economic issues. In the past, classical sociological theory of religion has placed great emphasis on religion’s integrative, or conservative functions in society. Empirical studies have documented the conservative socio-political views of the majority of Protestant parishioners. Knowing this, I expected to find a significant conservative reaction swelling up from the lay parishioners of the GPCC's member congregations. A preliminary investigation revealed this assumption to be invalid. The …

A Study Of The Relationship Between Attitudes Toward Woman's Roles And Career Choices Of Women Graduate Students, Barbara Backstrand

Dissertations and Theses

The purposes of the present study were to explore how American college women view their roles and whether or not women who choose not-traditional-for-women (NTW) careers have more or less social support from significant others for that choice than women who choose traditional-for-women (TW) careers. A related question asked whether aspects of a woman's personal history predict her role attitudes and behavior as an adult.

Optimization Of Single- And Double-Flash Cycles And Space Heating Systems In Geothermal Engineering, Talal Hussein Hassoun

Dissertations and Theses

Two different problems of optimization in the utilization of geothermal energy are presented: First, the thermodynamic optimization for a geothermal power plant using a single- or double-flash process is considered; in this analysis, the optimum flash temperature giving the maximum power output is determined. Second, an economic optimization for space heating systems using geothermal energy is developed to obtain operating conditions for which the total (capital and operating) cost is a minimum.

Both graphical and analytical methods are used in the thermodynamic optimization to determine the optimum flash temperature. The graphical method is based on thermodynamic data provided by an …