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Geochemistry Of Alteration And Mineralization Of The Wind River Gold Prospect, Skamania County, Washington, Krista I. Mcgowan

Dissertations and Theses

The Wind River gold prospect is located in TSN, R7E of Skamania County, Washington, and is an epithermal gold-quartz vein system hosted in volcanic rocks of the Ohanapecosh Formation, a late Eocene to middle Oligocene unit of calcalkaline chemical composition. Andesitic pyroclastic rocks of the Ohanapecosh Formation are the host of mineralization in the study area, and form the lowest of several stratigraphic subunits. These pyroclastic rocks are overlain by two sequences of lava flows which cap the ridges and are folded by an anticlinal warp over the length of Paradise Ridge, plunging gently to the southeast. Toward the west, …

Geology And Geochemistry Of Hydrothermal Alteration, Eastern Portion Of The North Santiam Mining Area, J. Michael Pollock

Dissertations and Theses

The Ruth Mine is a base-metal vein deposit near the eastern margin of a reported porphyry copper deposit in the Western Cascade Range in Oregon. Uplift of the Western Cascade Range has resulted in a deeply dissected terrain in which more than a kilometer of the stratigraphy overlying the porphyry-style mineralization is preserved and exposed. The stratigraphic units, which are middle Tertiary in age, have been given arbitrary letter designations beginning with the lowest unit (Unit A) through the uppermost unit (Unit D).

Unit A is composed of fragmental rocks of andesitic composition. Overlying and interlayered with Unit A are …

Faculty Senate Monthly Packet June 1985, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The June 1985 Monthly packet includes the June agenda and appendices and the Faculty Senate minutes and attachments from the meeting held May 1985.

Spontaneous Coherent Pulsations In Ring-Laser Oscillators: Stability Criteria, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

The stability criteria implied by a simplified semiclassical laser model are considered in detail. It is found that two types of criteria must be distinguished. The first concerns the smallest pump rate for which infinitesimal perturbations of the steady-state solution will increase with time, and the second concerns the smallest pump rate for which large amplitude modulations will not damp away.

Faculty Senate Monthly Packet May 1985, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 1985 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 1985.

Faculty Senate Monthly Packet April 1985, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The April 1985 Monthly packet includes the April agenda and appendices and the Faculty Senate minutes and attachments from the meeting held March 1985.

The Effect Of Glaciers On Streamflow Variations, Andrew G. Fountain, Wendell V. Tangborn

Geology Faculty Publications and Presentations

The effect of temperate glaciers on runoff variations is examined for the North Cascade Mountains of Washington State. The principal influences of glaciers on streamflow are often unexpected contributions to streamflow volume, a delay of the maximum seasonal flow, and a decrease in annual and monthly variation of runoff. The delay of maximum flow is caused by temporary englacial storage of spring meltwater and by peak meltwater production occurring in midsummer. The englacial storage, for one case, is 54% of the potential May runoff. An algorithm is presented that calculates the coefficient of variation of runoff for any arbitrary glacier …

Personal Knowledge And The Inner Sciences, Martin Zwick

Complex Systems Faculty Publications and Presentations

One significant but not widely appreciated impact of the “new religions” has been to reopen the question of the relation of religion to science. I speak of new religions in the sense defined by Needleman in his book by that title, that is, I am referring primarily to Eastern teachings which have gained adherents and cultural influence in the West over the past two decades. To some degree, certain of these religious systems can be viewed as encompassing “sciences” with well-articulated theories and powerful technologies, and it is this particular perspective on these religious movements which I would like here …

The Applicability Of Microcomputers To Local Water Management, Roderick Lee Allen

Dissertations and Theses

Historically, hydrologic models have been available only on mainframe computers and have therefore not been used by local water managers to support daily decisions. The development of the microcomputer presents an opportunity for that to change.

Mathematical models of soil moisture and river routing are selected, developed and tested for use on a microcomputer as an aid to local water management. The models are then integrated with an appropriate data base in a computer program written for a microcomputer. The result is a Decision Support System for local water managers.

In order to evaluate the feasibility of using the Decision …

Faculty Senate Monthly Packet February 1985, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The February 1985 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 1985

Structure And Evolution Of The Horse Heaven Hills In South-Central Washington, Michael Curtis Hagood

Dissertations and Theses

The Horse Heaven Hills uplift in south-central Washington consists of distinct northwest and northeast trends which merge in the lower Yakima Valley. The northwest trend is adjacent to and parallels the Rattlesnake-Wallula alignment (RAW; a part of the Olympic-Wallowa lineament). The northwest trend and northeast trend consist of aligned or en echelon anticlines and monoclines whose axes are generally oriented in the direction of the trend. At the intersection, folds in the northeast trend plunge onto and are terminated by folds of the northwest trend.

Special Education Labeling Relationships With Learning Disabled Student Self-Concept, Nancy Kathryn Godinet

Dissertations and Theses

The intent of this research was to explore special education labeling interactions with measured student self-concept on the Piers-Harris Self-Concept Scale. An extensive literature review revealed that there are eight major variables which have been found to exert an influence upon student self-concept: achievement, age, sex, socioeconomic status, ethnic origin, place in family, significant others, and special class placement. This study was designed to examine these major self-concept variables and control for any significant variations between groups of learning disabled (LD) labeled students and nonlabeled regular students with equivalent math and reading achievement. Collection of data for use in this …

The Impact Of Social Networks On Mortality, Disease Incidence, And Disease Progression, Mary Bahner Maxwell

Dissertations and Theses

Several recent longitudinal studies of large community populations have revealed that people with more extensive network resources live longer. However, it is not known whether this occurs because social ties prevent disease or retard its progression once it occurs. The purpose of this research was to: (1) determine the relationship between social network indicators and mortality in an urban sample; (2) extend that knowledge by addressing the relationship between networks and disease incidence and disease progression; (3) delineate which specific network sectors were the strongest predictors of the health related outcomes. This was uniquely possible because measures of the three …

Municipal Water Use: An Oregon Case Study, Ibrahim M. Shukri

Dissertations and Theses

There are two approaches to estimating the quantity of water required in an urban area: the requirements approach and the economic approach. The requirements approach extrapolates from past growth trends of the urban area. Water consumption and population are extrapolated into the future using a trend line based on prior years; the future requirements of the area are determined according to past experience. This approach served well when water was essentially a free good. But now that it is an economic good that requires production, the requirements approach tends to overestimate water requirements. The alternative is the economic approach which …

Economic Determinants Of Residential Mortgage Choice, Marvin J. Horowitz

Dissertations and Theses

Variable rate mortgages (VRMs) have been introduced into the mortgage market as a means of addressing the housing finance problems encountered over the past two decades. To learn more about the demand for VRMs, this study analyzes borrower choice behavior and its economic determinants. In order to estimate the probability of borrowers choosing VRMs rather than conventional fixed rate mortgages, discrete choice (logit) models are specified and validated for both cross-section and pooled time-series cross-section data samples. These samples contain mortgage application information for the years 1978 through 1981. They were drawn from the Loan Register Report of the California …

Spontaneous Coherent Pulsations In Ring-Laser Oscillators, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Complex spontaneous-pulsation phenomena have been reported in xenon lasers operating at 3.51-μm wavelength, and a theoretical explanation for these effects has been given. However, the published models contain various simplifications and have so far yielded only qualitative agreement with xenon-laser experiments. Reported here is a more rigorous analytical model, which for the first time provides quantitative agreement with experimental observations. This model should also find direct application in interpreting or predicting the behavior of other spontaneously pulsing laser systems.

Spatial Clustering Of Sector Linked Industry In An Urban Economy, Colleen Greer Acres

Dissertations and Theses

The influence of economies of agglomeration on location decisions has been debated since it was advanced by Alfred Weber in 1909. Empirical findings at the international, national, and regional levels do not definitely support the efficacy of such economies. No study has been done at a local level, the one inherently appropriate to the Weber premise. Further, most studies have used highly generalized manufacturing groupings. The importance of intra-industry and inter-industry determinants of spatial proximity in the Portland, Oregon metropolitan area was investigated in this study. The data base included 220 industries with 2,111 firms employing 108,295 workers. National input-output …

A Study Of The Impact Of The Federal Ecia, Chapter 2, Block Grant Program On Elementary And Secondary Education In The State Of Oregon, Mary T. Rose

Dissertations and Theses

The study addresses the fiscal, governance, and educational impact of the Education Consolidation and Improvement Act on elementary and secondary education in Oregon from its inception in 1983 through the 1985 fiscal year. A review of the national literature and research provided rationale for hypothesizing within state redistribution of federal aid to elementary and secondary school districts, increased federal aid to local education agencies, a continuation of decreased federal funding for state educational agency positions, and an expansion of federal aid to private schools. Interviews were conducted with Oregon Department of Education officials, members of the State Block Grant Advisory …

Portland State Perspective; Winter 1985, Portland State University

Portland State Perspective

A quarterly alumni newsletter. In this issue: Shelley Reece shares his research on Paul Scott, a British author; an interview with Roosevelt Carter; and the story of how Vanport Extension Center became a four-year college

Provenance Study Of Late Eocene Arkosic Sandstones In Southwest And Central Washington, Mark Edward Byrnes

Dissertations and Theses

The purpose of this study is to compare the sandstone composition and trace element geochemistry between samples representing the Summit Creek sandstone, Naches, Chumstick, and Carbonado Formations in order to determine if these sediments were all derived from the same provenance, and to determine the composition of the source rocks in hopes to identify the present day location of the source areas.

Preliminary Investigation For Underground Storage Of Pipeline Gas In The Bruer And Flora Pools, Mist Gas Field, Columbia County, Oregon, Paul Joseph Townley

Dissertations and Theses

Northwest Natural Gas Canpany has proposed to convert the Bruer and Flora pools of the Mist Gas Field in west-central Columbia County, Northwestern Oregon, to pipeline gas storage reservoirs. Conversion to underground storage of pipeline gas in these depleted gas reservoirs would be the first in the Pacific Northwest. The Bruer and Flora Pools are fault trapped within the Cowlitz Formation. The shales overlying the Cowlitz Formation create a local seal for these gas reservoirs. X-ray diffraction and density log measurements suggest that the clay in these shales is primarily composed of smectite, which provides an excellent caprock seal.

The …

An Analysis Of The Affects Of Crisis On The Decision Making Practice Of A Dialysis Program: A Case Study, James Christopher Farley

Dissertations and Theses

In 1982 the Health Care Finance Administration mandated changes in the mechanism and financing of the End Stage Renal Disease (ESRD) Program by the provisions of the Omnibus Budget Reconciliation Act. These changes in finances and procedures became effective August 1, 1983 and have created a state of crisis for ESRD facilities program wide. This study analyzes a large non-profit dialysis program and how its decision making practices were affected 2 by the change in Medicare laws. Application of decision theory in health care provides a basis for this study on the affects of crisis on decision making.

This study …

Rain, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 11, Number 1

Inside: Post-Puerile Paradigms; Weed It and Reap; Solar: Big Business

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.”

Solvable Hill Equation, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

A second-order linear differential equation with continuous periodic coefficients is solved exactly in terms of elementary functions. Equations of this type arise commonly in several areas of physics, and the solutions may find practical applications. As an illustration, the results are applied to the problem of an electron in a one-dimensional periodic potential.

Proceedings Of A Workshop On Interactive Graphics For Transportation Planners, Kenneth Dueker, Ross Roberts

Center for Urban Studies Publications and Reports

The workshop attracted transportation planners from transit and regional planning agencies, consulting firms, and local governments. It explored the use of interactive graphics coupled with multi-modal transportation planning.

Several key aspects of the use of interactive graphics were explored in panel discussions and demonstration workshop sessions. These aspects included the evolution of interactive graphics technology, the structured application of this technology in implementation, the operational environment, impacts on planning agencies and future applications of this technology.

The demonstration of applications was made possible by use of Metro's EMME/2 system. Metro is the Metropolitan Planning Organization (MPO) for the Portland area. …

Rain, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 10, Number 6

Special Issue: Art in Everyday Life; Cultural Animation; Grassroots Art; Bamboo

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.”

Effects Of Urbanization On The Hydrologic Regime Of Johnson Creek, Portland, Oregon, William Vandewater Clement

Dissertations and Theses

The Johnson Creek watershed, Portland, Oregon, has undergone urbanization at an increasing rate. Excessive flooding has occurred in the lower portions of the watershed, resulting in an estimated 1.5 million dollars worth of flood losses annually. In attempts to mitigate the flooding damages millions of dollars have been spent to channelize the creek, and over 200 thousand dollars has been spent during the last 20 years on preliminary feasibility studies alone.

The author saw a need to verify that there has been a change in the rainfall-runoff relationships in the upper Johnson Creek basin since 1941 and to quantify this …

Power Characteristics Of Single‐Mode Semiconductor Lasers, Jaroslava Z. Wilcox, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

The basic aspects of power calculations for high‐gain semiconductor lasers are briefly reviewed, and a straightforward one‐dimensional model is described. The relative importance of spontaneous emission, distributed losses, band‐to‐band absorption, and high single‐pass gain are investigated in detail.

1984 Commencement Program, Commencement

Commencement Archives 1980-89

The program for the Portland State University 1984 Spring Commencement ceremony, held at Memorial Coliseum on June 8, 1984, in Portland, Oregon.

Opening remarks by Loren L. Wyss, Oregon State System of Higher Education.

Alternating Current Studies And Kinetic Analysis Of Valinomycin Mediated Charge-Transport Through Lipid Bilayer Membranes, Kenneth Lee Cox

Dissertations and Theses

In this study we have investigated the frequency dependence of bilayer lipid membranes for a series of glycerylmonoolein/n-decane bilayers in various aqueous ionic solutions containing the ionophore valinomycin. Reliable values of membrane capacitance and conductance were obtained over the frequency range 0.2 - 200 KHz using an automatic balancing bridge under the control of a microprocessor unit. The admittance data was then normalized and curve-fitted to produce relaxation times and amplitudes from which the kinetic rate parameters, as deduced from a single slab dielectric membrane model, were calculated. These ac experimental rate constants were then compared with those obtained from …