Digital Commons Network^™

An Analysis Of The Shift Of Employment Toward Multi-Sectoral Services Industries In California, 1960-1980, Ayalew Adamu

Dissertations and Theses

The structural change in the United States economy represented by the growth of the service sector has received a great deal of discussion and analysis in recent years. The purpose of this study is to identify the factors that have determined the growth of the separate service sectors (namely distributive, personal, social, and business) from 1960 to 1980 in the regional economy of California. The research addresses many issues. First, a general discussion is presented of the structural change in the United States economy toward a growing service sector. An obvious indicator of this change is the disproportionately higher rate …

Selected Functions Of Nurse Practitioners In Oregon And Some Implications For Nurse Preparation, Mary Jean Schindler

Dissertations and Theses

Purpose. This study was designed to determine the perceptions of the Oregon-certified nurse practitioners (NPs) with respect to their usage, competency, and preparation for selected functions. Clarification of what NP's perceive themselves doing and with what degree of competence could give structure and direction to their preparation. In Oregon, NPs provide specialized primary care in collaboration with physicians and other health care professions and agencies. The performance of an NP may vary according to the specialty, setting, and needs of the consumer. If some functions of the NP could be brought into clearer focus, then not only could benefits come …

Determinants Of The Spatial Distribution Of Peri-Urban To Rural Agriculture In The United States, Ibrahim Amin Abdel-Karim

Dissertations and Theses

Two issues are focal to the subject of the spatial distribution of crops in peri-urban zones. The first deals with developments in the fields of transportation, other technology, urbanization, and other factors which are not only prevalent in developed world economies, but which also are thought to force the cultivation of freshly consumed agricultural commodities away from the immediate vicinity of the market center. The second issue pertains to indirectly consumed crops, which are thought to shun proximity to the market center, where land rents per unit area are characteristically high, even when conditions for productions are ideal. Traditional models …

A Comparison Of Principal And Teacher Perceptions Of Principal Leadership Skills, Alan Mark Carlton

Dissertations and Theses

This study examined principals' and teachers' perceptions regarding both the importance of certain leadership skills and the ratings of principals' actual skills. There are strong theoretical bases for the use of principals' and teachers' perceptions in this study. The analysis of perceptions of leadership skills can lead to: (1) an increased awareness of principals' strengths and weaknesses; (2) greater communication between principals and teachers; and, (3) hopefully, increased productivity on the part of principals and teachers. The population for this study included a group of twenty-eight principals who participated in the Confederation of Oregon School Administrators Assessment Center, and teachers …

Stratigraphic Model Of The Southern Portion Of The Jim Bridger Coal Field, Sweetwater County, Wyoming, Paul S. Maywood

Dissertations and Theses

Uppermost Lance and lowermost Fort Union Formation sediments are found in outcrop in the southern portion of the Jim Bridger coal field, located on the northeast flank of the Rock Springs Uplift in Sweetwater County, Wyoming. Twenty-nine surface sections and 581 subsurface (borehole) sections were evaluated and used to construct a stratigraphic model.

Stratigraphic correlations with economically mineable coal seams in the Fort Union Formation north and south of the study area combined with definition of questionable local formational boundary locations are significant objectives in this investigation.

Synthesis And Characterization Of Some Sf₅- Containing Sulfonic Acids, Robert J. Willenbring

Dissertations and Theses

Pentafluorosulfur (VI) bromide (SF₅Br) adds to olefins of the form CX₂=CX₂, where X= H or F, with the pentafluorosulfur group usually adding to the carbon with more hydrogens attached to it. This series of compounds was used in an attempt to prepare the corresponding sulfonic acid hydrates of the general formula SF₅CX₂CX₂SO₃H·nH₂O, in order to have these compounds tested as possible fuel cell electrolytes. The reaction scheme involved reflux of the SF₅Br adduct with an equimolar amount of sodium sulfite in 50% …

A Groundwater Flow Model Of The Aquifer Intercommunication Area, Hanford Site, Washington, Elizabeth G. Simkover

Dissertations and Theses

Intercommunication has been identified between the unconfined and uppermost confined aquifer systems underlying a portion of the U.S. Department of Energy's Hanford Site. Erosional thinning and fracturing of the basalt confining layer within the study area allows physical contact between the two aquifers, but the vertical hydraulic gradient (a required driving force) is small. To better conceptualize the distribution and volume of the leakage occurring between the aquifer systems, this study investigates the confined Rattlesnake Ridge Aquifer flow system, which appears to be more sensitive to the vertical leakage than the overlying unconfined aquifer.

The flow system of the Rattlesnake …

Geology Of The Willamette Pass Area, Cascade Range, Oregon, Neil M. Woller

Dissertations and Theses

The Willamette Pass area is situated at the intersection of two hypothesized structural features, the Western Cascade-High Cascade boundary and the Eugene-Denio lineament. It is of interest due to its designation by the U.S. Department of the Interior as a Known Geothermal Resource Area.

Volcanic rocks of Oligocene to Pleistocene age are exposed in the study area. The oldest rocks are the Oligocene-Miocene lavas, undifferentiated, which are a diverse unit of ignimbrites and intermediate to silicic flows. The Oligocene-Miocene rhyodacites are a stratigraphically equivalent unit which is predominantly composed of aphyric rhyodacite flows. Middle Miocene volcanism produced the basaltic lavas …

The Formal Language Of Nonobjective Art, Gwen M. Erickson

Dissertations and Theses

As a central issue in my thesis work, I wish to explore a growing interest in the nature of shapes and their relationship to each other and to their environment. The character or personality of a shape is defined for me by its gesture and its color. I like to join shapes with different characters in such a way that they incorporate a sense of movement. The emphasis has not been on competition or conflict, but on a kind of dynamic balance.

As I worked through a series of still life studies last winter, I felt tyrannized at first by …

An Investigation Of Resolution And Addressability Requirements For Digital Display Systems Used In Word-Processing And Computer-Aided-Drafting Applications, Stephen T. Knox

Dissertations and Theses

Two hardware factors contributing to the overall image quality of digital CRTs are display resolution and addressability. The relationship between these two factors and human performance was modeled by a metric of display quality, the Resolution Addressability Ratio (RAR), and investigated within the contexts of Word-Processing (WP) and Computer-Aided-Drafting (CAD) tasks. The findings indicate a perceptual limit to MTF bandwidth improvements, and significant differences in display quality requirements between the two applications. The regression of image quality as a function of RAR metric values resulted in an r² = 0.94 for the WP task and an r² = 0.79 for …

The Chemistry Of Novel Chromium(Iv) Systems And Fluorinated Hypochlorites, Joseph Onuorah Udeaja

Dissertations and Theses

Chromium(IV) has been of interest for some time because of its role as an intermediate in chromic oxidation reactions. Since there are not a great number of stable tetravalent chromium complexes known, and the use of such species as oxidizing agents has not been widely explored, the preparation, isolation and characterization of new stable tetravalent chromium species may allow chemists the opportunity to more fully understand the role which tetravalent chromium plays in oxidation reactions. The present study thus involves the synthesis of Cr(OC₄H₉)₄ and other Cr(IV) derivatives and the use of Cr(OC₄H …

Tephrostratigraphy Of The Middle Eocene Chumstick Formation, Cascade Range, Douglas County, Washington, Matthew John Mcclincy

Dissertations and Theses

This study outlines the ash (tuff) bed stratigraphy (tephrostratigraphy) in the middle Eocene Chumstick Formation of central Washington. The tuff beds provide local marker beds enabling interpretation of the stratigraphy and structure of the formation. The chemical signature of these units provides the basis on which the units can be traced over broad areas in the basin of deposition. Correlations of tuff beds were obtained over distances of 41 km.

The tephrostratigraphy of the Chumstick Formation consists of nineteen tuff marker beds. Seventeen of these units are chemically characterized in this study. Ten elements were used to fingerprint these tuff …

A Comparative Study Of Three Language Sampling Methods Using Developmental Sentence Scoring, Cheryl Diane Dong

Dissertations and Theses

The present study sought to determine the effect different stimulus material has on the language elicited from children. Its purpose was to determine whether a significant difference existed among language samples elicited three different ways when analyzed using DSS. Eighteen children between the ages of 3.6 and 5.6 years were chosen to participate in the study. All of the children had normal bearing. normal receptive vocabulary skills and no demonstrated or suspected physical or social delays. Three language samples. each elicited by either toys. pictures. or stories. were obtained from each child. For each sample. a corpus of 50 utterances …

Adsorption Of Aminopyridines To Phosphatidylserine Vesicles, Colin Wright

Dissertations and Theses

Intrinsic association constants were determined for a series of aminopyridines on phosphatidylserine vesicles, through determination of electrophoretic mobility. The magnitudes of the constants were such that depolarization of the nerve terminal through binding to negative phospholipids seems unlikely to occur. The aminopyridines all had association constants between one half and one sixtieth the association constant of calcium. The aminopyridines probably block potassium channels in their enhancement of synaptic transmission.

An interesting correlation was noted in that the ranking of the aminopyridines in terms of their affinity for these lipids was approximately the same as the ranking of their enhancement of …

The Engineering Geology Of The Fountain Landslide, Hood River County, Oregon, Susanne L. D'Agnese

Dissertations and Theses

The Fountain Landslide located along I-84, five kilometers east of Cascade Locks, Oregon has moved periodically for over thirty years. Aerial photographs taken prior to recorded movement of the landslide show the headscarp of a large preexisting landslide. In 1952 a cut was made into the toe of the landslide to straighten Highway 30. The recorded movement history begins at this time. Stabilization procedures in the late 1950's focused on dewatering the slide mass. Movement had nearly stopped by 1957. A deeper cut was made into the toe of the landslide in 1966 to widen the highway to the four-laned …

The Geology And Hydrothermal Alteration Of The Bear Creek Butte Area, Crook County, Central Oregon, Richard Matthew Wilkening

Dissertations and Theses

The Eocene Clarno Formation, the Oligocene John Day Formation and basalts of the High Lava Plains are exposed in the Bear Creek Butte area in Central Oregon. In this area the Clarno Formation can be divided into a lower sequence composed of intermediate lava flows with intercalated mudflows and volcaniclastic sediments and an upper sequence of rhyolite and basalt flows and felsic ruffs. Separating the two units is a well developed saprolite. The change from intermediate to rhyolite-basalt volcanism reflects a change in the tectonic environment of the Cascade volcanic arc from compression to relaxation as subduction of the Farallon …

Biostratigraphy Of The Cowlitz Formation In The Upper Nehalem River Basin, Northwest Oregon, Neil B. Shaw

Dissertations and Theses

Examination of stream and roadcut exposures of the Cowlitz Formation allows the selection of measured representative sections, and collection of fossils, from an area roughly defined by the intersection of the boundaries of Clatsop, Columbia, Tillamook and Washington counties in Oregon. The study defines the features of the local environment of deposition, correlates sections to derive a composite columnar section, and develops a checklist of species for both microfossils and megafossils of the Cowlitz Formation.

Stratigraphic And Petrologic Analysis Of Trends Within The Spencer Formation Sandstones : From Corvallis, Benton County, To Henry Hagg Lake, Yamhill And Washington Counties, Oregon, Brent Joseph Cunderla

Dissertations and Theses

Within the thesis study area Spencer Formation arkosic/arkosic lithic sandstone lithofacies of Narizian age crop out in a sinuous north-northwesterly band from the Corvallis area into the Henry Hagg Lake vicinity ten kilometers southwest of Forest Grove, Oregon.

Analysis Of Problemsolving Groups With Feedback Intervention Using A Systematic Multiple Level Observation Of Groups, Donna Buchanan Schantz

Dissertations and Theses

The purpose of this study was to determine the effects of a feedback cycle on problemsolving groups. A formal method, Systematic Multiple Level Observation of Groups (SYMLOG), was employed for the analysis of behavior in such groups. The system, which codes on multiple levels of communication, served both as a theoretical and an explanatory approach. Problemsolving groups which included a feedback session on group process were compared with problemsolving groups which were not given feedback. The study used primary data from SYMLOG field diagrams to determine whether group movement, leader movement, self-perceptions, and group satisfaction would be affected by feedback …

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 …

Restriction Mapping And Expression Of Recombinant Plasmids Containing The Arsenic Resistance Genes Of The Plasmid R45, Terry M. Coons

Dissertations and Theses

The trivalent (arsenite) and pentavalent (arsenate) forms of arsenic are introduced into the environment through the use of arsenic in herbicides, pesticides, fertilizers, and the smelting of arsenic-bearing ores. Bacteria resistant to arsenic are readily isolated from surface waters, sewage, and clinical infections. Although some bacterial resistance is provided by inducible phosphate transport systems that discriminate against arsenate, marked resistance is carried on bacterial plasmids.

A 6.9 kilobase fragment previously derived from one such plasmid, R45, and containing the genes for inducible resistance to arsenite and arsenate was ligated into the cloning vectors puce and pUC9 in opposite orientations and …

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 …

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 …

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 …

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, …

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 …

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.

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 …