Digital Commons Network^™

Effects Of Stress And Social Support On Maternal Attachment With A Handicapped Infant, Cecelia Ostien Capuzzi

Dissertations and Theses

The purpose of this study was to compare the attachment process of mothers with and without a handicapped infant and to examine the effects of stress and the social support network on this process. The research was a prospective, longitudinal study comparing two different mother-infant groups on the dependent variable, maternal attachment. The independent variables handicap-nonhandicap, maternal characteristics, perinatal events, and other stressors were analyzed for their effect on maternal attachment. The social support network was examined to determine its direct and indirect effect on the attachment process. The sample was composed of 36 mother-infant dyads. Data were gathered in …

Elderly Stroke Patients And Their Partners: A Longitudinal Study Of Social Support And Well-Being Changes Associated With A Disabling Stroke, Marie Therese Rau

Dissertations and Theses

This investigation explored the relationship of demographic, social network, social support, and stroke-related factors to depressive symptomatology and well-being in 50 elderly individuals who had recently suffered a first, completed stroke and their partners. Data were gathered at two points in time, with interviews scheduled six months apart. Outcome measures included the CES-D depression scale and the Index of Psychological Well-Being. Data were analyzed using descriptive statistics, correlational procedures, multiple regression, and change-focused regression analyses. For the caregivers, lower depression levels at Time 1 were associated with better subjective health, less concern about being able to care for the patient …

Synthetic And Nitrogen-15 Nmr Studies Of Some Heteroaromatic Systems, Roger Martin Sheets

Dissertations and Theses

Beginning in the mid-1960's synthetic nucleoside derivatives of polyazaindolizines and polyazaindenes were studied for their anticancer activities. The most promising nucleosides for anticancer activity were pyrrolo-, imidazo-, and s-triazolo- pyrimidines and triazines. Syntheses of 1,2,4-triazolo 3,4c -1,2,4-triazine-7-oxide, 1,2,4-triazolo 3,4c pyrazine-7-oxide and 1,2,4-triazolo 2,3c pyrazine-7-oxide were achieved by the cyclization of the appropriate 3-hydrazinoazine N-oxide with diethoxymethyl acetate. When different one carbon cyclization agents react with the 3-hydrazinoazine-1-oxides they did not produce the expected polyazaindene-7-oxides. The reaction of formic acid with 3-hydrazino-1,2,4-triazine-1-oxide or 3-hydrazinopyrazine-1-oxide produced the 3-formylhydrazino derivatives. Similarly, the reactions of the 3-hydrazino -pyrazine-1-oxide and -triazine-1-oxide with benzaldehyde, acetic anhydride, …

Producer Cooperatives And Industrial Democracy: A Comparative Study Of The Performance Of Cooperative And Conventional Plywood Plants, Youssef Khodaparast

Dissertations and Theses

Widely differing theoretical expectations exist concerning the economic performance of labor-managed firms or producer cooperatives (PCs). While a good number of theoretical studies of these firms by economists have been undertaken, there remain considerable gaps in the empirical record. This is especially true in the case of American PCs. In general, theoretical controversies have not been tempered by enough empirical analysis. While some expect good performance from PCs, others are much less sanguine. This study compares the economic performance of a group of eight worker-owned producer co-op plants with that of eight conventional mills in the Pacific Northwest softwood plywood …

Values Of Oregon Community College Faculty In Selected Instructional Areas, John Francis Bohan

Dissertations and Theses

The following question was investigated for each of several biographical variables: Are there significant differences in the work values, as measured by the Ohio Work Values Inventory (OWVI), and personal values (terminal and instrumental), as measured by the Rokeach Value Survey (RVS), of instructors in Oregon community colleges? Comparisons were made by job status (part-time/full-time), teaching assignment, sex, number of years teaching, age, degree held, other employment of instructor, geographic location of college, and vocational certificate held. A multivariate ANOVA (followed by univariate ANOVAs and Modified LSDs as needed) was performed separately on the OWVI scales, the RVS Terminal Values, …

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.

A Study Of The Correlation Between The Degree Of Acculturation And Scholastic Achievement And English Gain Of Esl Students, Grades 2-5, Beach School, Portland, Oregon, Rhona R. Blackton

Dissertations and Theses

The purpose of this study is to determine if a correlation exists between the degree of acculturation and achievement in English, reading and math of English as a Second Language (ESL) students in grades 2 to 5. This study is intended to provide insights about the acculturating ESL student, and suggests how educators can best meet students' needs.

Quadtree-Based Processing Of Digital Images, Ramin Naderi

Dissertations and Theses

Image representation plays an important role in image processing applications, which usually. contain a huge amount of data. An image is a two-dimensional array of points, and each point contains information (eg: color). A 1024 by 1024 pixel image occupies 1 mega byte of space in the main memory. In actual circumstances 2 to 3 mega bytes of space are needed to facilitate the various image processing tasks. Large amounts of secondary memory are also required to hold various data sets.

In this thesis, two different operations on the quadtree are presented.

There are, in general, two types of data …

Post-Buckled Performance Of Partially Restrained And Intermediately Supported Steel Angles, Perumal Radhakrishnan

Dissertations and Theses

The post-buckled performance of cross-braced single angles was experimentally determined. The results of this study will be used by the Bonneville Power Administration for the analysis of member performance in transmission towers.

The Spirituality Of Pierre De BéRulle, Steven Percy Poitra

Dissertations and Theses

The sixteenth and early seventeenth centuries witnessed a revival of spirituality throughout Europe. Positive theology emerged as both an instigation to and instrument for Christian humanists in their endeavor to redress the Church's fundamental relationship to the laity.

The early efforts for reform in France were discouraged by Gallicanist sympathies. Further, growing numbers of Calvinists combined with the possibility of a Protestant king led to thirty-five years of sporadic civil war.

From the 1580's and 90's, French spirituality began a period of renewal and growth. At the heart of the French experience was the famous Acarie circle among whose members …

The Stratigraphy Of The Scappoose Formation, The Astoria Formation, And The Columbia River Basalt Group In Northwestern Columbia County, Oregon, Nancy Tompkins Ketrenos

Dissertations and Theses

The study area is located in northwestern Columbia County, and covers an area of approximately 70 square kilometers. The purpose of the study was to investigate the possible correlation of the Scappoose and Astoria Formations and determine their stratigraphic relationship to the Columbia River Basalt Group through mapping, geochemistry and petrography.

Serving Primary Caregivers Of Persons With Alzheimer's Disease : An Integrated Service Delivery Model, Greta Krahn Stapleton

Dissertations and Theses

Alzheimer's disease (AD) is the most common form of nontreatable dementia, a syndrome which reflects a progressive and global impairment of memory, intellect, and other cognitive abilities. This devastating condition directly touches the lives of as many as 10 million Americans, including not only persons suffering from the disease but their primary caregivers and other family members as well. At present the course of AD cannot be halted or reversed, and no cure is known. The problem, then, is how to most effectively respond to the psychosocial needs of primary caregivers in order to help them provide the best possible …

Internal External Locus Of Control And The Choice Of Therapy, Marlene Eid

Dissertations and Theses

The purpose of this study was to determine whether a relationship exists between the scores subjects obtain on Rotter's Internal-External Locus of Control Scale and the type of therapy they prefer. Two hundred and fifty-four students in general psychology classes were given Rotter's Scale. Considering their upper- and lower-third scores, 54 were classified as " Internals," 53 as "Externals." Subjects also were given written descriptions of both psychoanalytic and behavioristic therapies. Each of these descriptions dealt with the goal and the specific therapeutic procedure of the respective therapies. Subjects were asked to identify which therapy they preferred and to provide …

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 …

Networks For Staff Development In The State Of Oregon, Vida Sumner Taylor

Dissertations and Theses

This study documents and describes efforts by Oregon school districts to network in order to improve schools and provide resources for staff development. There are at least 41 networks linking school districts, institutions of higher education, and Educational Service Districts in both rural and urban areas of the state. These networks, collaboratives, and consortia have the common purpose of improving education, and the belief that they can accomplish more cooperatively than they can individually. These networks are described in terms of purposes, benefits and problems, and desire for assistance. Comparisons showed that large school districts are much more likely to …

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 …

Determinants Of The Variations In The Presence Of The Subfamily In U.S. Metropolitan Areas, 1980, John Ossaiedeme Umude

Dissertations and Theses

Over the years there has been interest in the living arrangements of Americans and the factors which influence those arrangements. Researchers have considered the growth of families headed by women, household consisting of single individuals, and those composed of unrelated individuals. One area, however, on which little attention has been focused is the presence of extended family living, characterized by the subfamily. The aim of this dissertation is to establish if subfamilies are a random or systematic phenomenon, and to identify the factors responsible for the variations in its occurrences within and across U.S. metropolitan areas. A causal model which …

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 …

Students In Alternative Public High Schools: Educational Histories Prior To Alternative School Entry, Carolyn Moilanen

Dissertations and Theses

The study was designed to describe an urban district's alternative high school population in terms of a conceptual framework drawn from three bodies of literature: dropout studies, supplementary/compensatory education, and alternative schools studies. Educational histories prior to alternative school entry were traced through district records and documents for 757 students and a focused interview was conducted with 81 students in order to obtain their perceptions of both regular and alternative educational experiences during their school careers. A qualitative data analysis was conducted to determine the study population fit with traditional descriptors for high-risk, to examine district responses in terms of …

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 …

Organizational Development: An Investigation Into The Knowledge Obsolescence Of Engineers In The Electronics Industry, Cheryl J. Hubbard

Dissertations and Theses

Purpose. This study investigated organizational development climate within the context of an organization experiencing rapid change in its environment resulting in employee knowledge obsolescence. Secondary purposes were: (1) determine current development methods and behavior; (2) identify preferred development methods; (3) examine the influence of educational background on development; (4) examine the influence length of service on development and (5) investigate reward preferences and their link to development. Procedure. The data were collected through a sample of 550 nonmanager engineers. The questionnaire consisted of individual background information and a modified version of the Work Description Questionnaire for Engineers (WDQE). Environment factors …

Effects Of Infection By Dwarf Mistletoe (Arceuthobium Americanum) On The Population Dynamics Of Lodgepole Pine (Pinus Contorta), James Leo Wanner

Dissertations and Theses

Dwarf mistletoes are Parasitic flowering plants that infect conifer tree species. The effects of Arceuthobium americanum on the seed crop of Pinus contorta were examined over a two year period to evaluate the effects of altered host reproductive success on host population dynamics. Heavily infected trees produced significantly fewer cones than uninfected trees during the first season in which cones were collected. Cone length, number of seeds per cone, individual seed mass, and total calories per seed were significantly reduced in moderately and heavily infected trees. Trees with different levels of infection showed trends consistent with the above but no …

Electrochemical Methods For Speciation Of Inorganic Arsenic, Karen Ann D'Arcy

Dissertations and Theses

Arsenic is found in the environment in several oxidation states as well as in a variety of organoarsenic compounds. This situation puts additional demands on the analysis in that it is desirable to measure the amount of each species, not just all of the arsenic. The reason for this is that the different species have greatly different toxicities; of the major inorganic forms, As(III) is much more toxic than As(V). The goal of this research was to develop a convenient method for the analysis of mixtures of As(III) and As(V) at trace levels. Electroanalytical methods are inherently sensitive to oxidation …

An Econometric Study Of An Oil-Exporting Country: The Case Of Iran, Abbas Heiat

Dissertations and Theses

The main objective of this study is to contribute toward an analytical and empirical work on the oil-based developing economy of Iran. It focuses on the aggregate behavior of the Iranian economy through a simple linear econometric model. After a survey of the literature on the theoretical framework of macroeconomic models for the developing countries in general, and for the oil exporting developing countries in particular, a linear econometric model for the Iranian economy is formulated and its logical and economical aspects are explained. The proposed model consists of basic consumption, production, foreign trade, and employment relationships. Estimation of the …

Potential Motivational Effects Of Altered Compensation Rates In Comparison To Other Type Incentives On Building Principal Performance, Allan Paul Deckard

Dissertations and Theses

The effective schools research has repeatedly concluded that effective schools are characterized by effective administrators. The desire, then, of local school boards to improve administrator performance has emerged, based upon the assumption that as building principal performance improves, so does teacher performance, and ultimately, student performance. Merit pay has received a great deal of attention in education recently as a means to motivate administrators towards improved performance. Merit pay is supported by the "physical-economic" school of thought which believes that individuals are "economically motivated". In contrast, the "work itself" or "job satisfaction" school of thought believes that individuals are best …

The Contribution Of The Lymph Hearts In Compensation For Acute Hypovolemic Stress In The Toad Bufo Marinus, Mark Baustian

Dissertations and Theses

Currently published data on the role of the lymphatic system in amphibians are inadequate and contradictory. Estimates of the rate of formation of lymph and the role of the lymph hearts in returning this fluid to the circulation are not based on actual volume determinations but rather estimates derived from changes in hematocrit using published values of plasma and blood volume. The lymph hearts are known to be vital to the maintenance of normal fluid compartment physiology and to increase their rate of activity during episodes of hypovolemic stress. Yet, significant redistribution of body fluids following hemorrage appears to occur …

The Structural Controls Of The Vale Rhinehart Buttes Complex, Vale Kgra, Malheur County, Oregon, John Timothy Doerr

Dissertations and Theses

The Vale KGRA is characterized by high heat flow, two to five times higher than the worldwide average, and by numerous hot springs. The hot springs are aligned along faults. This phenomena is typical of a Basin and Range type geothermal system. The hot geothermal fluids migrate upward along the more permeable, fault planes.

The rocks exposed in the Vale area are the Pliocene Chalk Butte formation and the Pleistocene beds of Captain Keeney Pass. Both units are composed of volcaniclastic siltstones, sandstones and conglomerates. The units are differentiated by color, texture and degree of lithification. About 200 meters of …

The Stratigraphy And Structure Of The Columbia River Basalt Group In The Salmon River Area, Oregon, Martin S. Burck

Dissertations and Theses

Approximately 16 km of Columbia River basalt are exposed in the Salmon River area to the south and to the west of Mount Hood, Oregon. A maximum composite basalt section composed of 15 flows and totaling 461 m is exposed in discontinuous areas of outcrop.

The Columbia River basalt in the Salmon River area belongs to the Grande Ronde Basalt and the Frenchman Springs Member of the Wanapum Basalt. The Grande Ronde Basalt section (6 flows) was mapped as two chemically distinct units referred to as low-M_gO (older) and high-M_gO (younger) Grande Ronde Basalt. At least …

Nitrogen Limitation Of Phytoplankton Growth In An Oligotrophic Lake, Michael Patrick Mulvey

Dissertations and Theses

Blue Lake, Jefferson County, Oregon, has high summer surface phosphorus concentrations (ca. 30 ug/l) yet is oligotrophic (summer Secchi depth is 11 to 16 meters). Nutrient enrichment experiments done with 1000 1 polyethylene enclosures indicate nitrate limitation of phytoplankton growth. Basin morphology may be an important factor in nutrient cycling in this lake. The lake has a maximum depth of 95.7 meters with an average depth of 42.7 meters. The lake basin has steep sides with only 4% of the lake bottom less than 3.3 meters deep. of recent volcanic origin.

In contrast, Suttle Lake, which is immediately downstream from …