Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 13261 - 13290 of 13953

Full-Text Articles in Entire DC Network

Qsim2: A Low-Budget Heuristic Approach To Modeling And Forecasting, Wayne Wakeland Jan 1976

Qsim2: A Low-Budget Heuristic Approach To Modeling And Forecasting, Wayne Wakeland

Complex Systems Faculty Publications and Presentations

This paper contains a description of a simple mathematical framework and modeling process which can be used to study a large class of socio-techno-natural systems. Models may be designed using intuitive notions or data to help specify the variables, parameters and interrelationships, which, with the aid of a computer program, can be used to forecast system behavior under various assumptions. Two example models are described.


The Black Elderly Volunteer, Sandra E. Gonzales Jan 1976

The Black Elderly Volunteer, Sandra E. Gonzales

Dissertations and Theses

The present study represents an attempt "to seek out one possible subgroup of the black elderly population--the volunteer. Black elderly volunteers are a puzzled about but largely unknown group. Very little systematic research has been done on this subject. Recently there has been an increased interest in volunteering among the elderly population as a whole, as social welfare planners seek new ways for the aged to find fulfillment and enjoyment. It is felt that volunteering can offer prestige, feelings of usefulness and other gratifications that may be lacking in the aged person's life.


Effects Of Increased Fuel Costs On Households In A Low Income Neighborhood In Portland, Oregon, Ora Allen, Betty Heald Jan 1976

Effects Of Increased Fuel Costs On Households In A Low Income Neighborhood In Portland, Oregon, Ora Allen, Betty Heald

Dissertations and Theses

This study is made up of two parts which explore some of the effects upon individual households making up a sample of a low income neighborhood in Portland. The first section in Chapter II presents a survey of sample households in our identified area, securing personal information given by adult members along with their responses to questions concerning effects on their budgets and the adaptations they have made to reduce the cost of fuel. The second section compares costs of fuel for January, February, and March of 1975 with the same months of 1974 for another sample in the same …


Residential Treatment Of Emotionally Disturbed Adolescents, Rosemary Brown Sutherland Jan 1976

Residential Treatment Of Emotionally Disturbed Adolescents, Rosemary Brown Sutherland

Dissertations and Theses

This study was requested by Dr. Ira B. Korman, Administrator, Woodland Park Mental Health Center. Woodland Park Mental Health Center currently provides a program of short-term evaluation and crisis care for adolescents. The staff there find it is difficult to locate suitable out-of-home placements for certain of their adolescent patients concluding hospitalization. Their concern for this group of hard-to-place patients has led to this inquiry, the purposes of which are to (1) assess need, (2) design a residential program, and (3) consider the feasibility of its implementation.


A Descriptive Study Of Participants In The Evergreen Community Organization, Douglas Edward Lehrman, Janet R. Abrams Jan 1976

A Descriptive Study Of Participants In The Evergreen Community Organization, Douglas Edward Lehrman, Janet R. Abrams

Dissertations and Theses

The purpose of this study is to present a descriptive analysis of the active participants in a voluntary association concerned with community development. This analysis will focus upon description and discussion of the socio-demographic characteristics of the active members of the organization. Some of the attitudinal factors which operated to motivate and sustain participation in the organization will also be examined. Before proceeding with discussion of the theoretical background for the study, the community and its history relative to development of the organization will be described.


A Profile Of Women Volunteers, Vana O'Brien Jan 1976

A Profile Of Women Volunteers, Vana O'Brien

Dissertations and Theses

Volunteerism has been the subject of much controversy in the last few years inasmuch as it is so often identified as a women's issue. Many areas, previously considered the rightful domain of women, have come under scrutiny as women question the value of their participation in “feminine activities.” As stereotypes are examined, fictions are explored and facts determined so that these former stereotypes can be reviewed in a new light. Many persons are becoming familiar via the popular media with these stereotyped roles (i.e., woman as “Good Mother”) , and learn that, for example, “good mothering” is not a monolithic …


Oregon's Struggle Toward A Comprehensive Plan For Children's Mental Health Services: A Historical And Political Process, Kristin Angell Jan 1976

Oregon's Struggle Toward A Comprehensive Plan For Children's Mental Health Services: A Historical And Political Process, Kristin Angell

Dissertations and Theses

Practicum focusing on the history of the planning and development of children's mental health services in Oregon, with special emphasis on the training of pediatricians and how pediatricians address children's mental health issues. Offers a detailed look at the legislative processes surrounding mental health program development, as the heightened role that referrals play in how treatment is identified and administered.


A Study Of Requests For Voluntary Admission To Oregon State Hospital, Julie Kern, Jeanne Miller, Alice Plummer Jan 1976

A Study Of Requests For Voluntary Admission To Oregon State Hospital, Julie Kern, Jeanne Miller, Alice Plummer

Dissertations and Theses

This study was undertaken in February and March of 1975 in order to provide in depth analysis of those seeking hospital admission. It is a descriptive study of requests for voluntary admission to Oregon State Hospital. Special care was taken to incorporate the study in such a way that the current admitting procedures would not be rearranged or changed in any way.

Essentially the study asks the questions:

  • Who makes self-requests for hospitalization?
  • Where do they come from? When? How do they get there? Why do they come?
  • What is the history of their contact with other community agencies for …


Securing Services For The Older Population : A Training Manual For I And R Workers, Catherine M. Nemmert Jan 1976

Securing Services For The Older Population : A Training Manual For I And R Workers, Catherine M. Nemmert

Dissertations and Theses

This manual is written as a self-training guide on the elements of Information and Referral (I and R) service and on the process of providing I and R to the older population. The manual attempts to build a useful framework for methods of providing I and R service. The manual is directed at workers who are providing I and R services to the elderly. It is intended to serve as an orientation guide on the basic elements of I and R service and as a "how to" guide for methods and techniques of service provision. The new worker should find …


Leadership Styles And Staff Satisfaction In Four Nursing Homes: Implications For Service Delivery, Carol Nightengale Jan 1976

Leadership Styles And Staff Satisfaction In Four Nursing Homes: Implications For Service Delivery, Carol Nightengale

Dissertations and Theses

This is a study of four nursing care facilities in Portland, Oregon in 1975-1976, which examines the relationship between leadership style and staff satisfaction, leadership style and patient satisfaction, and staff satisfaction and patient satisfaction.


Need Assessment Methodology, Gerald A. Burns, Janet S. Putnam Jan 1976

Need Assessment Methodology, Gerald A. Burns, Janet S. Putnam

Dissertations and Theses

A need assessment is a systematic process of determining community needs through the comparative analysis of people, problems, and services. Although need assessments of some form have existed since biblical times, it has only been within recent years that their use in social planning has become prominent. This is attributed to the increasing belief in the necessity of pertinent data to make decision-making responsive to community needs.

Ten basic issues should be considered in designing a need assessment, These are: 1) Purpose; 2) Decision-making context; 3) Agency resources; 4) Scope; 5) Future studies; 6) Staff roles; 7) Data collection; 8) …


A Comparison Of Two Articulation Management Approaches, Cindy Sue Sykes Jan 1976

A Comparison Of Two Articulation Management Approaches, Cindy Sue Sykes

Dissertations and Theses

This clinical project sought to examine two different approaches to the treatment of functional articulatory disorders and to implement these two approaches in the actual management of two articulation disordered clients. The two approaches selected were the traditional auditory-stimulus method (Van Riper, 1972) and the sensory-motor approach (McDonald, 1964b) to testing and treatment. It was the intention of this project to compare the results of articulation intervention of the two methods.


Theoretical Studies In Cooperative Phenomena And Population Ecology, Shripad Tuljapurkar Jan 1976

Theoretical Studies In Cooperative Phenomena And Population Ecology, Shripad Tuljapurkar

Dissertations and Theses

We study problems in the stability of nonlinear ecological models and in the theory of collective motion in physical systems. We first establish criteria for global stability in deterministic nonlinear population models, including the most general criteria so far available for the Lotka-Volterra model. Next we study conditions for coexistence under periodic perturbations in population models and establish criteria for the appearance of dynamic equilibrium states. The third study in ecological stability establishes that a measure of the stability of population models in the presence of white noise is given by a Liapunov function for the nonlinear deterministic model, and …


The Utilization Of Preventive Health Care Services By Low Income Members Of A Comprehensive Prepaid Health Plan : The Impact Of Outreach Services, Linda Elmlund Mahoney Jan 1976

The Utilization Of Preventive Health Care Services By Low Income Members Of A Comprehensive Prepaid Health Plan : The Impact Of Outreach Services, Linda Elmlund Mahoney

Dissertations and Theses

A reading of recent studies in preventative health care behavior recalls the proverb about the blind men and the elephant: each man is able to describe the part of the animal he is closest to, but none can see, and so none can put their diverse and often contradictory opinions together to come up with an accurate description of the whole elephant. Similarly, in preventative health care studies, each researcher or research group is able to observe the preventative health care utilization patterns of specific populations at particular times, but the conclusions reached are often based on less than complete …


Social Workers' Attitudes About Poverty, Trudy Hussmann Dec 1975

Social Workers' Attitudes About Poverty, Trudy Hussmann

Dissertations and Theses

The purpose of this study is to assess the attitudes of a select group of social workers in the Portland area. The study will focus on their attitudes about the causes of poverty and actions to deal with problems of poverty. These attitudes will be examined in the context of a theoretical framework. The sample consists of those social workers and social work-related professionals who serve as field instructors for the Portland State School of Social Work. This means that the study will also provide information about the attitudes that Portland State social work students are likely to encounter in …


Managing Human Services, Betsy W. Romain Dec 1975

Managing Human Services, Betsy W. Romain

Dissertations and Theses

Professional schools have realized for some time that there is an uncomfortable gap between the requirements of their academic curriculum and the realities of a professional job. The skills required, performance level and final product, are noticeably different in the academic world than in the work world. This void between what is required in school and what is required on the job, has become of increasing concern as larger numbers of academically qualified students compete for a decreasingly smaller number of jobs. Additionally, institutes of higher education, caught in current day fiscal realities, are under pressure from both students and …


Rain: Appropriate Technology, Recycling, Video, Community, Energy, Wind, Solar, Land Use, Energy Conserving Lifestyles, Eco-Net Dec 1975

Rain: Appropriate Technology, Recycling, Video, Community, Energy, Wind, Solar, Land Use, Energy Conserving Lifestyles, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 2, Number 3

Inside: Wood Heat Stove Buyers Guide; Thinking About Land E. F. Schumacher; Solar Water Heater Plans

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.”


Threshold Characteristics Of Multimode Laser Oscillators, Lee W. Casperson Dec 1975

Threshold Characteristics Of Multimode Laser Oscillators, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

The oscillation characteristics of a multimode laser are considered in detail, and for the first time saturation by all of the cavity modes is included. Analytical expressions are obtained for the mode amplitudes, linewidths, and over‐all spectral characteristics of lasers operating above and below threshold. It is found that with increasing excitation the spontaneous emission spectrum is gradually resolved into a set of narrow discrete modes. Slightly above threshold the number of modes reduces in a homogeneoulsy broadened laser until only a single mode is oscillating strongly. The theoretical results are in agreement with experimental data that have been reported …


A Functional Analysis Of The Effects Of A Token Economy Program On Attending Behavior In Children And Subsequent Test Performance, Kay Delores Lillig Cotter Nov 1975

A Functional Analysis Of The Effects Of A Token Economy Program On Attending Behavior In Children And Subsequent Test Performance, Kay Delores Lillig Cotter

Dissertations and Theses

Thirty children, 4 years 8 months to 6 years 7 months, enrolled in a privately operated day school, were randomly assigned to either a treatment group or a control group over a one week period of baseline and a one week period of treatment. The experiment was designed to determine, if the implementation of a token economy program to decrease disruptive behavior in a classroom would result in improved academic performance. Both the children's and teacher's behavior were assessed. The findings were nonsignificant for all of the dependent measures for children's behavior. The only significant effect for teacher's behavior was …


Portland State Perspective; November 1975, Portland State University Nov 1975

Portland State Perspective; November 1975, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: Vanport revisited; county government; career advice; men's fashion; alumni bicycle tour


Rain, Eco-Net Nov 1975

Rain, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 2, Number 2

Inside: On Inflaction E. F. Schumacher; Northwest Energy Map; Paths to a Solar Transition, Interview with John Reynolds, Speech by Reis Leming

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.”


Mode Properties Of Annular Gain Lasers, Lee W. Casperson, Mohammad Shabbir Shekhani Nov 1975

Mode Properties Of Annular Gain Lasers, Lee W. Casperson, Mohammad Shabbir Shekhani

Electrical and Computer Engineering Faculty Publications and Presentations

The properties of a new class of laser resonators are investigated theoretically and experimentally. In these lasers the radiation propagates longitudinally in an annular amplifying medium, and useful low loss modes can be obtained even when the axial region is obscured. Alignment characteristics and far field patterns are discussed, and experiments have been conducted using coaxial double-discharge CO₂ devices.


"The Search For Extra-Terrestrial Life", Donald L. Devincenzi Oct 1975

"The Search For Extra-Terrestrial Life", Donald L. Devincenzi

Special Collections: Oregon Public Speakers

No abstract provided.


New Odessa, 1882-1887: United We Stand, Divided We Fall, Helen E. Blumenthal Oct 1975

New Odessa, 1882-1887: United We Stand, Divided We Fall, Helen E. Blumenthal

Dissertations and Theses

The Oregon Territory and later the State of Oregon have had a well-deserved reputation for encouraging free thought and liberal ideas. By tradition, Oregon has been the scene of rugged individualism, a proving ground for ideas and movements. The commune of New Odessa was one of the lesser known attempts of a group of immigrants coming from persecution in Russian to a new way of life in America.

This thesis is a study starting with the background of Russian Jewry, the social climate in the United States and particularly Oregon which allowed for the development of communes, the story of …


Rain: A Monthly Bulletin Board, Eco-Net Oct 1975

Rain: A Monthly Bulletin Board, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 2, Number 1

Inside: Ecotopia by Ernest Callenbach; Conscious Culture of Poverty by E. F. Schumacher

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.”


Martin Luther King, Jr. And His Times: A Multi-Media Script, Robert D. Rosenkranz Oct 1975

Martin Luther King, Jr. And His Times: A Multi-Media Script, Robert D. Rosenkranz

Dissertations and Theses

The objective of this thesis is to create a broad perspective of Martin Luther King, Jr. and his times by placing him and his goal of creating the "beloved community" to the test of his environment: the feeling and behavior of those people whose hearts and habits he struggled to change or direct.

In order to achieve this, this multi-media script, based in history, places King in contrasting settings. Act I finds King in Montgomery where with a great deal of support he wins over vocal southern segregationists in court. In contrast, Act II takes place in the Lawndale slums …


Sentencing: A Study Of The Effects Of Presentence Report Recommendations Upon The Sentencing Practices Of Judges In Multnomah County, Oregon, John George Gardin Ii Oct 1975

Sentencing: A Study Of The Effects Of Presentence Report Recommendations Upon The Sentencing Practices Of Judges In Multnomah County, Oregon, John George Gardin Ii

Dissertations and Theses

The process of judicial decision-making is not well understood. This paper has tried to shed some light on that process by examining the impact of presentence report recommendations upon the sentences handed down by the judges of a circuit court. Very little empirical work has been done on this problem, even though the presentence report recommendation is generally regarded by those in the judicial system as extremely important to the sentencing process.


Isolation And Characterization Of Two Sterols From The Green Alga, Selenastrum Capricornutum, Raymond Mark Owings Aug 1975

Isolation And Characterization Of Two Sterols From The Green Alga, Selenastrum Capricornutum, Raymond Mark Owings

Dissertations and Theses

The green alga, Selenastrum capricornutum, was cultured in artificial nutrient medium utilizing five-gallon carboys, each of which contained 16 1. of culture. The algal cells were separated from the nutrient medium by continuous-flow centrifugation at 7500 RPM, and were then lyophilized. The lyophilized cells were extracted by refluxing with ether, acetone, and chloroform:methanol (2:1). Free sterols and sterol esters were separated from the crude extract using preparative thin-layer chromatography. Sterol esters were saponified and both the sterols and the fatty acids were recovered.

Individual sterols were separated from the free sterol fraction using argentation thin-layer chromatography. Gas chromatograms, mass …


Biochemical Description Of A Lava Tube Lake In Southeast Oregon, John Edward Palmer Jul 1975

Biochemical Description Of A Lava Tube Lake In Southeast Oregon, John Edward Palmer

Dissertations and Theses

A Pleistocene lava tube cave in southeast Oregon has a seasonally fluctuating lake occupying the last 1200 to 2000 feet. Three endemic invertebrate species inhabit the lake: Kenkia rynchida Hyman; Asellus sp.; and Stygobromus hubbsi Shoemaker. Little is known however, about their environment. The purpose of this study was to describe various physical and chemical parameters of Malheur Cave Lake.


Effects Of Antifibroblast Antiserum On Cells Derived From Fibroblast Outgrowth Of Human Prostatic Tissues, Eva Shang-Lian King Jul 1975

Effects Of Antifibroblast Antiserum On Cells Derived From Fibroblast Outgrowth Of Human Prostatic Tissues, Eva Shang-Lian King

Dissertations and Theses

The purpose of this investigation was to provide pure cultures of normal human prostatic epithelium free of fibroblasts in order to study malignant conversion by chemical carcinogens. Normal epithelial cells were needed because this was the cell type implicated in prostatic malignancies of human subjects. Unfortunately fibroblasts grew faster than epithelial cells so that cultures were always overgrown with connective tissue elements. It was considered important to find a method which would eliminate fibroblasts so that normal epithelial cells could grow out in pure culture.