Digital Commons Network^™

Gain And Dispersion Focusing In A High Gain Laser, Lee W. Casperson, Amon Yariv

Electrical and Computer Engineering Faculty Publications and Presentations

The transverse modes of a laser resonator containing a medium with a strong radial gain profile differ greatly from the modes of a similar resonator containing a low gain medium. Focusing and defocusing effects result from the gain profile and from the associated dispersion profile. The dispersion focusing causes an asymmetry in the power output as the laser is tuned across the gain line. The theory has been verified using a high gain 3.51-µ xenon laser.

Catechol Effected Dissolution Of Silicate Minerals, James Maurice Kelley

Dissertations and Theses

The chemical properties of guanidinium tris(catecholato)siliconate, [(H₂N)₂C=NH₂]₂[Si(C₆H₄O₂)₃]·XH₂O (0 < X < 1), precipitated from an ammoniacal solution of silica and catechol by adding guanidinium hydrochloride, (H₂N)₂C=NH·HC1, were studied, and infrared, nmr, x-ray powder diffraction, and analytical data were gathered.

This same compound was, upon addition of' (H₂N)₂C=NH·HC1, isolated from 0.25, M aqueous catechol solutions buffered at pH 10 and containing the silicate minerals albite, andradite, muscovite, pyrophyllite, talc, and wollastonite, and also from unbuffered catechol solutions containing wollastonite and andradite.

It is concluded from this work that the formation of an anionic catechol-silicon complex, Si(C₆H₄O₂)₃²⁻, is largely responsible for the dissolution of the minerals mentioned above. From this conclusion, it is proposed that naturally occurring members of the class of organic compounds to which catechol belongs, the aromatic v̲i̲̲c̲-diols, may play …

The Rhetoric Of Garner Ted Armstrong, Stephen George Dick

Dissertations and Theses

Garner Ted Armstrong is fast becoming a well known religious and political commentator. The purpose of this thesis was to describe and discuss the techniques and characteristics of Mr. Armstrong's rhetoric. The question to be answered was "What are the characteristics of a successful religious broadcaster?" The method used-in the selection of the speeches to be used in this study consisted of selection a number of speeches (56), then breaking them down into theme categories. After analysis, there were eleven categories. One speech was selected from each category, and these eleven speeches were the speeches that were used in the …

An Alienation Measurement And Observed Behavior: A Study Of Forty-Two Male Seniors In A Technical High School, Jack Leo Terzenbach

Dissertations and Theses

The study examined the relationships between subjects' degree of alienation and descriptions of their behaviors. The subjects were 42 male, senior students at Benson Polytechnic High School who attended one of two required social science classes. Benson High School is an all male, technical high school which admits students from all parts of the City of Portland, Oregon. Alienation was defined as a syndrome of feelings consisting of apathy, distrust, pessimism, cynicism, and emotional distance. The degree of subjects' alienation, as defined, was measured by the Multiple Alienation Measure devised by Dr. Laurence J. Gould. Subjects' were thereby divided into …

Reaction Of Aqueous Catechol Solutions With Minerals, Boonthong Poocharoen

Dissertations and Theses

The effectiveness of catechol, an aromatic vic-diol, in dissolving silicate minerals was studied. A synthetic amorphous magnesium trisilicate, Mg₂Si₃O₈∙5H₂O, as well as the minerals olivine, sepiolite, diopside, augite, and enstatite were used to react with catechol in slightly acidic, basic, and neutral solutions. It was found, depending on the solvent used, that 33-52, 8-17, 14-30, 5-11, 3-6, and 0.5-1 % of the minerals dissolved, respectively.

The reaction with Mg₂Si₃0₈·5H₂0 resulted in the formation of crystals of magnesium tris (catecholato) siliconate nonahydrate Mg[Si(Cat)₃]∙9H₂0. Dehydration of the crystals at room temperature resulted in the loss of 6 moles of water to form …

The Women's Liberation Movement And Identity Change : An Urban Pilot Study, Molly M. Doeneka

Dissertations and Theses

The purpose of this study was to determine if participation in Women's Liberation results in identity change in the individual participants. As a pilot study, it examines the characteristic experiences of a study group of twenty-six local participants and compares the effects of their participation with a theoretical model of identity change process proposed by Ward H. Goodenough in Cooperation in Change. According to this model the process of identity change is a consequence of specific kinds of realizations fostered by a series of definable stages which are: 1) achieving a desire for identity change, 2) making a commitment to …

"Limiting The Power Of The President", Wayne Lyman Morse

Special Collections: Oregon Public Speakers

No abstract provided.

Repression Of Β-Galactosidase Synthesis In Escherichia Coli By Salicylates, Joan Carlyn Olson

Dissertations and Theses

Salicylic acid, and to a lesser extent aspirin, have been shown to repress β-galactosidase synthesis in Escherichia coli. The repression is not due to decreased inducer uptake, nor does it result from competition with inducer for repressor. Dinitrophenol does not exert similar effects on β-galactosidase synthesis. Cyclic adenosine 31, 51-monophosphate partially relieves the repression. The extent or the relief by cyclic adenosine monophosphate seems to depend on the concentration of salicylic acid. This indicates there may be direct interaction between the actions of cyclic adenosine monophosphate and salicylic acid in E. coli cells.

An Attitudinal Study Of Selected Groups In The City Of The Dalles Toward The Community Attention Home, David Clitheroe, Garrett Long

Dissertations and Theses

When a family starts to dissolve it frequently comes to the attention of the court or the welfare department and what happens once its members enter the system can be of critical importance. While the number of adults incarcerated is expected to increase slightly, the alarming fact is that if we continue to confine juveniles at the same rate an increase of 70% between 1965 and 1975 can be expected. These data suggest that we should investigate alternatives to detention, not only because of the increasing pressures of space available but, more importantly, because juvenile detention has shown itself to …

A Regional Approach: City-County Consolidation As A Method Of Local Governmental Reorganization, Anthony Gene White

Dissertations and Theses

City-county consolidated governments are examined to isolate factors important to the success of the consolidation process, and are measured against objective and subjective criteria for the operation of such governments. Data are obtained through survey techniques and statistical analysis of demographic information. Results indicate that such success-oriented consolidation factors inherent in city-county governments do exist and can be interrelated in a mathematical model. Consolidated governments appear to improve their ability to handle urban problems, and officials of consolidated governments are more confident of their ability to handle these problems than are officials of other metropolitan governments reorganized in different manners.

"The Chinese Domestic Scene", William Hinton

Special Collections: Oregon Public Speakers

No abstract provided.

"China In Crisis: The Chinese People And The Communist Political System", Robert A. Scalapino

Special Collections: Oregon Public Speakers

No abstract provided.

"Current Issues In Teaching English As A Second Language", Russell N. Campbell

Special Collections: Oregon Public Speakers

No abstract provided.

"The Politics In 1972", Eugene J. Mccarthy

Special Collections: Oregon Public Speakers

No abstract provided.

"Acadia For Moderns: The Fulfilling Environment" (Is America Possible? Lecture 3), René Dubos, Portland State University

Special Collections: Oregon Public Speakers

No abstract provided.

"Is America Possible?" Lecture 1, Tom Wicker, Portland State University

Special Collections: Oregon Public Speakers

No abstract provided.

"Transcendental Meditation: A Vision Of Possibilities", Walter Koch

Special Collections: Oregon Public Speakers

No abstract provided.

Portland State Perspective; June 1971, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: Dean of Graduate Studies discusses the future of the university's graduate programs; Geology students travel down Green River; scholar introduces German arts festival.

"The Self And The U", Ramon Alcerro, William R. Anderson, Gregory B. Wolfe

Special Collections: Oregon Public Speakers

No abstract provided.

"Opening Remarks And Responses To Questions From The Audience", Edmund S. Muskie

Special Collections: Oregon Public Speakers

No abstract provided.

Expanding The Visual Potential Of Subject Matter Through Two-Dimensional Design, William Paul Paxton

Dissertations and Theses

This research problem represents an attempt to forestall the high school student's usual preoccupation with perceptive minutiae by placing an emphasis on the monumental or underlying structure of a work of art.

The author, endeavoring to afford maximum success for the students, first stripped subject matter to its most pristine quality, the silhouette. Because it was felt that it is much easier to recognize and organize an underlying structure without the added complication of perspective, emphasis was placed on a depthless surface or decorative space to be organized into a coherent whole through application of the abstractions which are the …

Life Styles Of Methadone Treatment Patients: Agreement Of Self Report And Informant Report, Richard Cox, Gary West

Dissertations and Theses

The purpose of this descriptive study was to reveal the typical life style of a representative sample of fifty male opiate addicts participating in the Oregon Methadone Treatment Program. An important goal of the research was to assess the reliability of information gathered from patients compared to data obtained from an equal number of informants. A highly structured questionnaire was designed to elicit specific responses in order to calculate the degree of concordance between patients and informants to identical items. The findings depicted the modal life style of the subjects as more socially conventional, more responsible, and less antisocial. Although …

"The Development Of Social Behavior In Primates", Robert A. Hinde

Special Collections: Oregon Public Speakers

No abstract provided.

"Romantic Love", Elaine Hatfield Walster

Special Collections: Oregon Public Speakers

No abstract provided.

Harbor Drive Closure - Public Hearing, Oregon. State Highway Commission

Ernie Bonner Collection

No abstract provided.

The Rhetoric Of Sir Thomas More And Dietrich Bonhoeffer In Original Work And Dramatic Portrayal, Robert C. Harvey

Dissertations and Theses

Chapter I. This is a critical study of the rhetoric of Sir Thomas More and Dietrich Bonhoeffer and of plays in which they are portrayed. The purpose is to discover whether or not the rhetoric of the playwrights preserves the integrity of the ideas of the central characters as evidenced by the rhetoric found in their original works .

Chapter II. Rhetorical criticism is rendering a judgment on the fitness, correctness or appropriateness of those discourses, spoken or written the aim of which is to influence the readers or hearers. There is much variety in methods of rhetorical criticism. This …

Teaching Social Studies From A Global Viewpoint, Janet Hays Clemmer

Dissertations and Theses

The need for preparing our youth to live in an interdependent world on this finite planet has become urgent since the beginning of the nuclear age at the end of World War II. There is a need to extend the loyalty of the citizen tor the nation-state to human needs seen from a global view. The involvement of the United States in the international community already is extensive because of its predominant power. This involvement is not reflected in our education, either from the amount of time devoted to social studies in our schools or in the emphasis on international …

Viking 1971, Portland State University

The Viking (Yearbooks)

Portland State University 1971 yearbook

How Women Are Made: A Look At The Issues Of The Women's Liberation Movement, Lenore Jan Coffey

Dissertations and Theses

This project was originally conceived of as an exploration and written presentation of various dimensions of the contemporary social movement called the Women's Liberation Movement. The exploration was to be through personal experience in the movement and research in movement literature.

The Lair Hill Park Neighborhood On Examination Of The Phenomenon Of Community Creation, Joseph S. Uris

Dissertations and Theses

This thesis is a study of a community in physical isolation. The first chapter describes the methodology used. Short form questionnaires and in-depth interviews were gathered. Three sets of historical maps were drawn from documented sources. A film describing the life style and beliefs of some community residents was made. The second chapter is an evaluation of some of the literature on the neighborhood. This chapter details the hypothesis that external pressures and externally created needs tended in the case of the Lair Hill area to produce a Gemeinschaft-like situation which proves stronger than the many factors making for heterogeneity …