Digital Commons Network^™

Fuzzy Multiobjective Mathematical Programming In Economic Systems Analysis: Design And Method, Li Da Xu

Dissertations and Theses

Economic systems analysis is a systems analysis technique of setting out the factors that have to be taken into account in making economic systems decisions. The inquiring and operational systems of the technique are almost exclusively designed for well-structured systems. In review of economic systems analysis against systems thinking, there is a growing tendency to discard the analytical approach as inappropriate for dealing with an ill-structured issue. Therefore, economic systems analysis needs both the inquiring and operational systems which are appropriate for ill-structured systems. The foregoing leads to the introduction of an extensive methodology. Mainly, the weakness of economic systems …

Job Satisfaction Of Administrators In A Public Suburban School District, Linda Cartier Borquist

Dissertations and Theses

The two research questions of the study were: (1) Is the job satisfaction of school district administrators related to the personal factors of group membership and sex? (2) What are the sources of overall job satisfaction? Do they confirm findings from previous studies in which autonomy, responsibility, the work itself, growth, recognition, feedback, achievement, and interpersonal relationships were found to be major contributors to job satisfaction? Utilizing the Job Diagnostic Survey (JDS) developed by Hackman and Oldham and free response questions, ratings of job satisfaction were obtained to determine if sex and group membership (elementary principal, secondary principal and vice …

Purification And Characterization Of Fumarate Reductase From Methanobacterium Thermoautotrophicum, Sanjay S. Khandekar

Dissertations and Theses

Anaerobic fermentation has been an established technology ever since man started treating sewage. Recently this process has received increased attention because of its inherent ability to produce methane gas, which apart from solar energy, is the cleanest, most non-polluting source of energy. Methanobacterium thermoautotrophicum, a thermophilic bacterium, grows on CO(,2) as a source of carbon as well as electron acceptor, using hydrogen as an electron donor. Labeling studies carried out with ('14)C have shown a presence of partial reductive TCA cycle. In this work, the enzyme fumarate reductase, which belongs to this cycle, has been purified to homogeneity using various …

Propagation Of Optical Waves In Tapered Fibers And Metallic Wave Guides, Bahram Zandi

Dissertations and Theses

The equations tor the propagation of Electromagnetic and Optical waves in tapered fibers and metallic waveguides are derived. Solutions are derived for the displacement of the beam from the waveguide axis as a function of distance along the axis, and also tor the beam width as a function of distance. These equations are solved numerically for a variety of tapered guides. Experiments are conducted which verify the theoretical results.

Enhanced Computer Graphics For Decision Makers, Floyd James Brock Jr.

Dissertations and Theses

Words need a context to be understood. Visual patterns also need a context to convey their meaning. When patterns represent quantities in business graphics, decision makers (DMs) depend on contrasting visual contexts to discern patterns and discover relationships. Depending on the context in which DMs see trends, differences between two trends may point to a problem, to continuity, or to an opportunity. Can enhancing the context in computer graphics help DMs visualize problems? To answer this research question, three experiments were done in the field on computer graphics. One hundred five DMs tried 17 different contexts for time-series trends displayed …

A Multidimensional Analysis Of Physical Attractiveness In The Formation Of First Impressions, Jewel Marianna Smith Hunter

Dissertations and Theses

Before any words are spoken, an individual's appearance is his or her first line of nonverbal communication with the rest of the world. Prior research conducted on physical attractiveness has been vague and contradictory and has not assessed its many components. Rather, past investigators have perceived physical attractiveness as a "unidimensional" concept.

Several phases were involved in the task of proving or disproving the hypotheses of the study. The first general phase began with the selection of photographic subjects, progressed into the creation of a set of photographs which were to become the stimuli, and proceeded to the selection of …

A Stratigraphic-Geochemical Study Of The Troutdale Formation And Sandy River Mudstone In The Portland Basin And Lower Columbia River Gorge, Rodney Duane Swanson

Dissertations and Theses

Hyaloclastic sediment forms an identifiable stratigraphic interval within the Troutdale Formation that can be traced from the Bridal Veil channel to the Portland basin. Hyaloclastic sediment composed chiefly vitric sands is found interbedded with muds, sandy muds and gravels penetrated by wells in northeast Portland are correlated with the upper member of the Troutdale Formation. These beds are characteristic of the informal upper member of the Troutdale Formation in the Bridal Veil channel of the ancestral Columbia River (Tolan and Beeson, 1984) and the type area of the Troutdale Formation exposed along the Sandy River (Trimble, 1963). Fluvially deposited hyaloclastic …

The Effects Of Income Inequality On Racial Residential Segregation In The Portland Metropolitan Area, Katayoun Aidinezhad

Dissertations and Theses

Changes in the patterns of income and residential segregation were examined in the Portland Metropolitan Area. The 1970 and 1980 Census of Population and Housing were used in calculating the indexes of dissimilarity between black and white populations. The data indicated a significant decrease in the residential segregation of blacks in suburban areas between 1970 and 1980. The central city area still remained highly segregated with a segregation index of 69.5.

Taeuber's index of dissimilarity was used in calculating the unevenness in the distribution of income between blacks and whites. Suburbia showed a significant decrease in income segregation compared to …

The Geology, Geochemistry, And Alteration Of Red Butte, Oregon: A Precious Metal-Bearing Paleo Hot Spring System, Carol Susan Evans

Dissertations and Theses

Red Butte is located 60 km south of Vale, Oregon, about 20 km west of the Oregon/Idaho border. The butte is within the Owyhee Upland physiographic province of eastern Oregon which lies at the intersection of the Western Snake River Plain, the High Lava Plains, and the Northern Basin and Range provinces.

The butte is composed of Miocene to Pliocene lacustrine and fluvial volcaniclastic sediments. The topography of the butte is controlled by silicification of the sandstones and mudstones which cap it. Silicification and hydrothermal alteration are both structurally and stratigraphically controlled. North-trending normal faults dominate the area, and show …

An Assessment Of The Incorporation Of Established Guidelines And Intercultural Communication Concepts Into U.S. College-Sponsored Study Abroad Programs, Thomas Thaxter Bacheller Iv

Dissertations and Theses

This research project had the following goals:

1) To locate, describe, and synthesize recognized authoritative standards of performance and guiding principles of effective good practice for study abroad programs that have been established, endorsed, and supported by professionals and national organizations in the study abroad field.

2) To review selected literature on intercultural communication that has been published in the last fifteen years and examine intercultural communication theories and strategies applicable to the study abroad field to identify aspects which can most clearly benefit the study abroad experience of a sojourner through improved communication competence.

3) To assess the extent …

Copper Electrodeposition In A Magnetic Field, Hiroshi Takeo

Dissertations and Theses

The effect of a magnetic field on copper electrodeposition was investigated. Copper was electrodeposited onto square copper cathodes 1 sq cm in area from an aqueous solution (0.5 M CuSO₄, 0.5 M H₂SO₄. A glass cell was placed between the pole pieces of an electromagnet, and the magnetic fields applied were in the range from 0 to 12.5 kG. The current density was in the range from 80 mA/sq cm to 880 mA/sq cm. In each of the experiments, cell current, cell voltage, and cell temperature were monitored with a microcomputer. The weight …

The Communication Of Wellness Concepts Interculturally In An Alaskan Health-Care Context, Janet A. Allan

Dissertations and Theses

The purpose of this study is to investigate in what ways cultural value differences between Alaskan Native clients and non-Native health professionals affect the communicating of "wellness" concepts. Specifically, this study focuses on possible difference in the cultural value orientation of "Man's Relationship to Health."

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 …

A Comparison Of Pedophiles And Incest Offenders On Mmpi Scales And Demographic Data, Linda Darmer Ladd

Dissertations and Theses

This study compared one group of pedophiles, two groups of incestuous fathers, and two groups of incestuous stepfathers on their individual MMPI scale scores and self-reported demographic data. Past research on sex offenders has shown that patterns of variables are better indicators of offender typology than single variables. A nonrandom sample of male abusers (N=177) was drawn from two separate sources, a clinic that screens offenders for treatment disposition and an unrelated outpatient treatment clinic in the Portland, Oregon area. Scores from the 13 MMPI scales as well as data from 17 demographic variables were drawn from clinic …

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 …

Development And Application Of A Water Budget Model For Lake Level Fluctuation, Goose Lake Basin, Oregon-California, Douglas Daniel Nebert

Dissertations and Theses

A water budget model was developed to estimate year-end lake volumes of Goose Lake, Oregon-California, to determine whether an accurate reconstruction of lake volumes/levels could be made with several synthesized or partial volumetric components. Components evaluated were the lake level/volume observations, precipitation, streamflow, and evaporation during the data-rich study period, 1946 to 1975. By regressing estimated year-end volumes against actual volumes (using actual volumes as the input at the beginning of each year) a correlation coefficient of 0.97 was obtained. By letting the series' year-end volumes be substituted for the following years' antecedent volumes a systematic error was created, identical …

Transparent Landscape, Elizabeth Harris

Dissertations and Theses

This thesis is for a Master of Fine Arts in Painting and features the work of Elizabeth Harris.

Subsidized Housing For Seniors: A Comparative Study Of Management Styles, Thelma Lofquist

Dissertations and Theses

Studies at the Urban Institute in Washington, D.C., during the 1970's, defined a management style already existing for high-performance, assisted housing. Project performance in those studies was based in part on: (a) tenant satisfaction with management, (b) tenant turnover rates, (c) rent delinquency rates, (d) vandalism rates, and (e) operating cost per unit. For this dissertation an attempt was made to evaluate the use of high-performance management guidelines with a newly-opened, assisted-housing project for elderly and handicapped residents. The guidelines used for this study were (a) authority for the project was based on-site, (b) maintenance responsibilities were based on-site, (c) …

Physical Illness And Depression: Changes Over Time In Middle Aged And Elderly Persons, Ann K. Williams

Dissertations and Theses

Recent research in gerontology and geriatrics has identified that one factor repeatedly associated with depression in the elderly is the presence of physical illness. The increasing numbers of elderly persons in the population and their high rate of chronic physical illness make it important to identify critical disease and individual characteristics that play a role in the association of depression and physical illness. In order to investigate and clarify these relationships and concerns, a panel survey of 133 middle aged and elderly persons with recent exacerbations of various physical illnesses was completed. Subjects were referred by medical offices and agencies …

The Measurement Of Change In Well-Being In A Longitudinal Study Of Pre- And Post-Retirees, Marie P. Beaudet

Dissertations and Theses

The primary focus of this dissertation is an empirical investigation of three approaches to the measurement of longitudinal change. For the present study, difference scores, residual change scores, and percentage gain scores are compared to determine if their use results in similar findings when the relationships between three resource areas (health, social, and financial) and subjective well-being are analyzed. The propositions which are tested were derived from current aging theories. Meta-analysis procedures were employed to synthesize past research findings in gerontology. The data which were analyzed are those of the Longitudinal Retirement History Study (LRHS), a research project sponsored by …

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.

Social Structure, Health Orientation And Health Behavior, Khalifa Ali Baej

Dissertations and Theses

An attempt has been made to examine the relationship between social structure and medical factors in a framework which links cosmopolitanism to health orientation and behavior. Specifically, this study has attempted to investigate the variations in health knowledge, beliefs, attitudes and behavior among individuals whose social structure varies in terms of cosmopolitanism.

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 …

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 …

Studies Of Nucleation And Heat Transfer In Liquid Helium Isotopes 3 And 4, David Lezak

Dissertations and Theses

We report the results of a series of experiments in three interrelated areas: light induced nucleation of vapor bubbles in superheated liquid helium 4, transient heat transfer in liquid helium isotopes 3 and 4, and homogeneous nucleation of vapor bubbles in superheated liquid helium 3. This work has resulted in significant contributions in each of these particular areas. Our transient heat transfer work has resulted in extremely high temperature measurements of the Kapitza thermal boundary conductance limits in helium 3 and 4, in measurements of the delay time to the onset of film boiling over a wide range of bath …

An Assessment Of A Training Program Designed To Teach Staff Nurses In An Acute Care Facility To Transfer Nursing Process Theory To Practice, C. Frances Johnson

Dissertations and Theses

A training program was developed to help registered nurses in an acute care facility to learn nursing process theory and to transfer that theory to nursing practice. A total sample of 102 newly-hired nurses who had participated in this training program were pre- and post- tested on class content; they also filled out a questionnaire which provided demographic and attitudinal data related to the use of nursing process as a model for nursing care. An audit sample of 82 nurses, who were a part of the total sample, were audited one month after the training program to collect data on …

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 …

Cathodic Depositions Of The Compound Semiconductor Cadmium Sulfide, Jeffrey B. Richard

Dissertations and Theses

Thin layer deposits of cadmium sulfide (CdS) for photovoltaic purposes can be made by cathodic deposition from a nonaqueous solution. There were numerous parameters that were controlled in this electro-deposition. Several of these parameters, including temperature, current density, reactant concentrations and impurity level doping, were studied and optimized. The mechanism of this deposition process is not fully understood, mainly due to the complex chemistry of sulfur. Part of this complexity is the presence of S(,6) and S(,7) along with the major component of S(,8) in sulfur solutions. At 90(DEGREES), these minor species constitute 2% of the total sulfur. Electrochemical studies …

Socialization And Ideal Expectations For The Health Professional Role In The Provision Of Quality Terminal Care For The Urban Elderly, Margaret B. Neal

Dissertations and Theses

This study investigates socialization and ideal expectations for the health professional role in the provision of quality terminal care. Guiding the research are role theory, socialization theory, and Talcott Parsons' (1951) pattern variables. The research was conducted in three phases. The first phase involved development of an analytical framework elaborating upon Parsons' five pattern variables, which were first conceptualized as dimensions describing the ways in which roles could vary. Specific indicators for each of the pattern variables were developed. Typologies characterizing (1) the medical, or conventional, model and (2) the holistic model (specifically, the hospice model) for the provision of …