Digital Commons Network^™

An Adult Education Program Planning Model For The National Universities Of Egypt., Waguida A. El Bakary

Graduate Theses, Dissertations, and Problem Reports (ETD)

In view of the success of American program planning models and their potential contribution to adult education centers at the national universities of Egypt, the researcher wanted to investigate the usefulness of such models to the Egyptian national universities. Six U.S. program planning models by Boyle (1981), Houle (1972), Knowles (1970), Knox and Associates (1980), Sork and Buskey (1986), and Tyler (1949) were selected and synthesized. The researcher developed a model, based on 15 steps and 73 key tasks. She introduced it for testing to determine its usefulness for the national universities of Egypt. Testing was done through the use …

An Integrated Computer Model For Predicting Surface Subsidence Due To Underground Coal Mining: "Cispm"., Yi Luo

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation is a part of the results of a research effort. The objective of the research was to develop a reliable, comprehensive and easy-to-use computer model for predicting surface movement and deformation induced by underground coal mining. The subsidence prediction model developed is capable of (1) predicting the final subsidence on a flat or moderate surface; (2) predicting the dynamic subsidence on a flat or moderate surface for an operating longwall panel; (3) recommending subsidence parameters based on the geological and panel layout information for those new coal mines; (4) deducing the subsidence parameters from the subsidence data collected …

Citation Analysis And Emerging Technologies: Foundational Technical Developments In Optical Disk Technology., Thomas Tunnell Wrenn

Graduate Theses, Dissertations, and Problem Reports (ETD)

One reason a given technology emerges is that the technical means of the technology are improved--made more efficient, faster, more reliable. This causes changes in the "socio-technical interface" between the technical means and the organization in which it is applied, and it becomes practical to use the improved technical means in new applications and additional organizations. Technical developments that decisively affect the technical workability and the economic usefulness of a product or process, which permit rapid changes in a technology and its rate of emergence, are termed foundational technical developments (FTDs). We often want to be able to identify which …

Instructional Design And Interactive Videodisc In Cai., Robert Franklin Perkins

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study uses the Product Development Cycle developed by W. James Popham and Eva L. Baker as a systems approach to Computer-Aided-Instruction development. This process establishes seven stages (Formulation, Item Specification, Item Tryout, Product Development, Product Tryout, Product Revision, and Operations Analysis) and rules that are to be followed at each stage. Formative and summative evaluation are incorporated to improve the product's development. Instructional design is integrated into this process by using Component Display Theory developed by M. David Merrill. Merrill uses a Performance-Content matrix to develop learner objectives and items to test performance. Presentation Forms (Primary and Secondary) are …

An Economic Investigation Of Foreign Labor Composition In Saudi Arabia's Labor Market., Mubarak Ali Al-Buraik

Graduate Theses, Dissertations, and Problem Reports (ETD)

The main objective of this research was to develop a theoretical model capable of explaining the changes in foreign labor and its ratios in Saudi labor market, using annual time-series data spanning the period 1963-1985. In a reduced form, the model has been derived from the theoretical underpinnings of the supply and demand for labor in Saudi Arabia's labor market. In this model, the explanatory (independent) variables influencing foreign labor and its ratios have been identified and thoroughly explained; they consisted of both "pull" factors and "push" factors. The model was then used as a guiding tool or framework for …

Creative Problem-Solving And Its Effect On Eighth-Grade Students., Frances Elizabeth Bush

Graduate Theses, Dissertations, and Problem Reports (ETD)

The primary objective of this study was to determine the impact of Creative Problem-solving (CPS) training on students' creative thinking and finished art products. Experimental and Control groups were matched by age (13-14) and grade (eighth). The creativity training program used in the study was a total of sixteen sessions of 55 minutes each. The vehicle for the study was CPS which was conducted by the writer who encouraged fluency, flexibility, originality, and elaboration. Control group received no special training during their traditional art class. Data were analyzed using t-test and correlations. All subjects constructed art products at the end …

Portrait Of Dr. Louise Mcneill Pease, West Virginia Educator., Willa Louise Cather

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study is to present an account of Dr. Louise McNeill Pease whose influence as a West Virginia teacher has been relatively unrecognized by her native state. A review of the available literature shows that Dr. Pease has been identified as a gifted writer through numerous honors, yet her impact as a teacher has been neglected. This study intends to close this gap. This investigation is a qualitative research project entailing the gathering of life history data coded and organized into chapters that develop a portrait of the subject. The literature review and the procedures of the …

The Cost Efficiency And Communication Effects Associated With Brand Name Exposure Within Motion Pictures, Eva Marie Steortz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Brand name products have been making appearances on the silver screen since the beginning of the cinema. Jack Daniels bourbon made its film debut when Joan Crawford served it in the 1945 movie, Mildred Pierce. However, only recently has such a great effort been exerted by those involved in this "advertising" technique. Many credit this growing trend to E.T., Steven Spielberg's lovable little alien creature, who followed a trail of Reese's Pieces to a documented 65 percent increase in sales for the Hershey company in 1982.

Interestingly, there is no research available concerning the communication effects associated with a brand …

Kinetics Of Drug Release From The Polylactic Acid Microcapsules Prepared By A Solvent Partition Method., Nilsuwan Leelarasamee

Graduate Theses, Dissertations, and Problem Reports (ETD)

A solvent partition technique of microencapsulation, utilizing an apparatus designed to provide a continuous injection of a drug-polymer preparation into a flowing mineral oil system, has been developed via the preparation of hydrocortisone-polylactic acid microcapsules. Using this method, microcapsules of controlled particle size distribution and drug loading were prepared with good reproducibility. Dissolution studies further showed that microcapsules having the same drug loading and particle size distribution exhibited the same rate of release. The drug release profiles, obtained in pH 7.4 phosphate buffer at 37 C, showed a biphasic drug release pattern denoting a fast first-stage and a slow second-stage …

Coal Transportation: A Comparative Spatial Analysis Between Unit Train And Slurry Pipeline (West Virginia)., Masood Soltanmohammadi-Sarab

Graduate Theses, Dissertations, and Problem Reports (ETD)

After the 1973 Arab oil embargo and a drastic price rise in crude oil, the demand for coal and, subsequently, the price of coal rose to a new high, thus encouraging further production of coal. The increase in the production occurred in most of the coal fields of our nation except those in some specific areas, such as West Virginia. Preliminary studies indicate that the high transportation cost of coal contributes to this slacking coal production pattern. Three related objectives are studied in this dissertation: (a) Finding the least cost mode of coal transportation; (b) Determining the new pattern of …

The Effects Of Matching And Mismatching The Diagnosed Learning Styles Of Intermediate Level Students With Their Structural Preferences In The Learning Environment., Barbara Francine Rahal

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research was to investigate the relationships between the learner's diagnosed preference for structure and the academic achievement of intermediate level students in a unit on energy resources when the instructional environments is congruent with and dissonant with the learner's diagnosed structural preferences. The study also examined the standard scores of an affective learning style diagnostic instrument and a cognitive style diagnostic instrument for possible relationships. Eighty intermediate level subjects of a private elementary school in Weirton, West Virginia were administered the Group Embedded Figures Test (Oltman, Raskin & Witkin, 1971) and the Learning Style Inventory (Dunn, …

Lactate Dehydrogenase And Peroxidase In Mammary Cells, Normal And Cancerous, With Special Reference To Progestin Effects On Lactate Dehydrogenase In The Human Breast Cancer Cell Line T47d., Rodney Dale Hagley

Graduate Theses, Dissertations, and Problem Reports (ETD)

The steroid hormones, estrogen and progesterone, are known to have regulatory functions in normal mammary tissue and in some tumors of the breast. We report here the occurrence, partial purification, and preliminary characterization of peroxidase from bovine mammary tissue, and the presence and steroid hormone influences on peroxidase and lactate dehydrogenase in human breast cancer cells in tissue culture. Six human breast cancer cell lines and one human breast cell line derived from normal epithelial cells have been assayed for the presence and estrogen-inducibility of peroxidase and lactate dehydrogenase. Peroxidase was absent in four of seven human breast cell lines …

Dissolution Kinetics Of Hydrocortisone Into Polymer Solutions (Steroids)., Nahla Nassar Khoury

Graduate Theses, Dissertations, and Problem Reports (ETD)

A major concern of investigators during the last decade has been the evaluation of the relative therapeutic effectiveness of competitive drug products. The problem of bioavailability is further exaggerated for steroidal drugs formulated as suspensions because of low intrinsic solubility, and the addition of stabilizing ingredients, such as polymers, to the formulations. An in vitro evaluation of the dissolution rate of hydrocortisone alcohol and acetate from constant surface area tablets into dilute polymer solutions was undertaken since dissolution rate is a relevant characteristic concerning therapeutic availability for sparingly soluble drugs. Polymers of varying chemical type and in dilute concentrations, similar …

A Comparative Study Of Two West Virginia Community Power Structures And Their Relationship To Superintendents' Success., King R. Weber

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the extent to which superintendents in two selected West Virginia counties had identified and communicated with the educational influentials in their counties. Additionally, the study focused on the successful and unsuccessful superintendents in two selected West Virginia counties. The educational influentials and issues that were contemporary with the superintendents' tenures were also identified and analyzed. The researcher believed that the study would reveal a relationship between the superintendents' abilities to identify and communicate with the educational influentials in their counties and the superintendents' success or nonsuccess. A case study approach was utilized to investigate the various factors …

Development Of Design Criteria For Mechanical Roof Bolting In Underground Coal Mines, David Hsin-Ying Tang

Graduate Theses, Dissertations, and Problem Reports (ETD)

In spite of the widespread usage of mechanical roof bolts as a support system in the underground coal mines, the mechanisms by which roof bolts reinforce the mine roof are still not fully understood. The general practices of roof bolting system are largely based on some empirical rules, which tend to either underdesign or overdesign. In order to design the roof bolting system safely and economically, it is essential to understand the flexural behavior of the immediate roof. Based on the strata sequence, the strata in the immediate roof are divided into three types. The flexural behavior of the three …

Urbanization And Voting Participation In Korea (1963 - 1978): An Urban - Rural Comparison., Sunki Choe

Graduate Theses, Dissertations, and Problem Reports (ETD)

The focus of this study is the relationship between urbanization and voting participation in Korean national elections from 1963 to 1978 during the regime of President Park Chung Hee. More specifically, this study attempts to analyze: (1) urban-rural differences in voter turnout rate; (2) urban-rural differences in partisan support; (3) the relationship between urbanization as the surrogate variable of socioeconomic development on the one hand and voting participation on the other. In addition to analyzing the linkage between place of residence and electoral participation in Korea, this study will test the validity of leading models or theories on political participation--i.e., …

Arsenite In Soils: Analytical Determination, Sorption-Desorption Reactions And Sorption Kinetics (Elevich Equation, Differential Pulse, Polarography)., Elsayed Ahmed Elkhatib

Graduate Theses, Dissertations, and Problem Reports (ETD)

A technique was developed for the determination of total arsenic (As) in soil using differential pulse polarography. Soil samples were digested with a combination of HNO(,3) and H(,2)SO(,4). Total As was determined in M HCl after reduction of As(V) to As(III) with hydrazine sulfate. Soil and fly ash standards were analyzed by this method and agreement within one standard deviation between replicates was obtained. Approximately 99% recovery of As was obtained from spiked soil samples. Differential pulse polarography is also quite useful for the rapid determination of arsenite in solution during studies of As sorption - desorption by soils. A …

Utilization Of Resources Through Information Systems Planning In Higher Education., Glenn Devon Crowe

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today, higher education administration's task is one of unprecedented complexity. The multiple burdens provide sufficient reason for real interest in utilization of effective information systems. Consequently, new functions affecting the production, retention, and delivery of information have emerged. This study is not about the computer as such, but how to use it, what administrative information it can provide, and academically, how to let it serve higher education's purposes more sensitively and beneficially. The immediate and long-term information needs of a selected university were identified under the philosophy that good administrative use of the computer can help preserve educational resources in …

Electromagnetic Geophysical Tomography Incorporating Refraction And Reflection., Roger Dale Radcliff

Graduate Theses, Dissertations, and Problem Reports (ETD)

An accurate technique for remotely determining the internal structure of an object or underground environment would have a significant impact in mining, geoexploration, and the life sciences. This process of resolving the intrinsic properties of an object or environment by the transmission of X-rays or electromagnetic waves through the unknown anomaly is known as reconstructive imaging or tomography. Several efforts have been made to apply tomographical methods to electromagnetic measurements taken between two boreholes on either side of an unknown geophysical structure. However, it became necessary, because of the nature of existing reconstruction methods, to assume a straight-line propagation path …

Effects Of Dopamine Norepinephrine, Serotonin And Estradiol-17-Beta On Secretion Of Luteinizing Hormone And Prolactin In The Ewe., Daniel Robert Deaver

Graduate Theses, Dissertations, and Problem Reports (ETD)

Four studies were conducted to determine effects of dopamine (DA), norepinephrine (NE), serotonin (5-HT) and estradiol-17(beta) on secretion of luteinizing hormone (LH) and prolactin (PRL) in ewes. In the first study, tonic and LHRH-induced secretion of LH was affected by intravenous infusion of DA, NE and 5-HT in a dose-dependent manner in ovariectomized ewes. Responses of LH to increasing doses of DA and 5-HT were biphasic and slopes of dose-response curves between catecholamines and 5-HT were opposite. Secretion of PRL was inhibited by DA and NE but not affected by 5-HT. In anestrous ewes no effects of DA, NE and …

The Antioxidant Effects Of Non-Steroidal Anti-Inflammatory Drugs And Ketamine Against Polymorphonuclear Myeloperoxidase Dependent Bactericidal Mechanisms As Measured By Luminol-Enhanced Chemiluminescence., Gary Michael Pekoe

Graduate Theses, Dissertations, and Problem Reports (ETD)

The interaction of myeloperoxidase (MPO) with H(,2)O(,2) and Cl('-) provides a potent cytotoxic/antimicrobial system for polymorphonuclear leukocytes (PMNs). MPO-related cytotoxicity may be associated with the formation of toxic oxidant MPO intermediates, OCl('-), or both. MPO itself is able to oxidize drugs and cellular components. Non-steroidal anti-inflammatory drugs (NSAIDs) able to act as antioxidant free radical scavengers are shown in this study to inhibit luminol-enhanced chemiluminescence (CL) which results from the MPO-H(,2)O(,2)-Cl('-) interaction. CL is a measure of the production of oxygen-centered free radicals by this reaction. The source of CL which these NSAIDs affect is not OCl('-), once thought to …

The Rebec: An Orthographic And Iconographic Study. (Volumes I And Ii)., Margaret Anne Downie

Graduate Theses, Dissertations, and Problem Reports (ETD)

Most musical instruments of Western European culture have been studied and defined; however, no systematic study has yet been made for the instrument commonly known as the rebec (or rebeck). General reference sources and musicological studies which mention the rebec often provide discrepant, vague, and erroneous information. The current interest in the performance of Medieval and Renaissance music and the reproduction of instruments upon which this music might have been played has created a need, among performers and instrument makers, for specific, primary source information concerning the rebec. The use of the rebec in Western Europe can be documented through …

Simulation Of Hydraulic Fracturing Of Coal., Subhotosh Khan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The parameters affecting the hydrofracturing of coal were investigated through laboratory experiments and theoretical analyses. Effects of (i) fluid flow rate, (ii) confining stresses, (iii) orientation of material axes, and (iv) fluid viscosity were studied experimentally. Equations relating the ultimate tensile strength of coal as a function of confining stresses were developed. The expressions for crack tip stresses around a crack in an anisotropic material were used along with the results of previously performed experiments to show that the maximum normal stress criterion should be used in the fracture mechanics model of Pittsburgh coal. A computer simulation technique for crack …

Part I: Heterogeneous Kinetics Studies On Platinum And Graphite Using A Vibrating Electrode. Part Ii: Homogeneous Kinetics Studies Using A Packed Graphite Flow-Through Electrolysis Cell., William Ruppert Passwaters

Graduate Theses, Dissertations, and Problem Reports (ETD)

The application of hydrodynamic voltammetry to the study of heterogeneous electron transfer rate constants on platinum and graphite, and homogeneous rate constants for a chemical step coupled with charge transfer reaction(s) is presented. Turbulent flow forced convection at the vibrating electrode was used to determine the kinetic parameters for the reduction of Ce^+ 3+ 7 and Fe in 1 M H^SO^ and 0.1 M HCIO^ on platinum, and of Fe(CN)^-, 4+ 3+ Ce , and Fe in various background media on wax-impregnated graphite. Similar redox systems were found generally to have slower rates on graphite than on platinum. An exception, …

Home Economics: Past, Present And Future., Marian Beth Liddell

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of the study was to examine the evolution of the home economics philosophy from 1910 through 1975 and to outline the trends and developments in the profession over a 65 year period. Four structural components of home economics were traced 65 years through the Journal of Home Economics including: science as a base and its tie to agriculture; men in home economics; home economics1 skill orientation but broad-base; and the public image of the profession. The study examined selected developments in West Virginia home economics to note similarities and differences that existed between the State program and the …

The Optimal Design Of Electrical Power Plant Facilities Utilizing An Underground Air Storage System., Mihir Kumar Sinha

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cost engineering models have been developed for the preliminary design analysis and evaluation of an underground compressed air storage system for use in conjunction with conventional base-load (coal-steam) electric power generation stations. Models for industrial fuel gas storage systems for peaking application and a total system model for integrated power systems have also been developed for the purpose of preliminary design analysis and evaluation. These models determine the minimum cost of electric power, required capacities of base-load(coal-fired) plant and peaking plants from given values of the total demand, peak demand and fuel costs, as well as characteristics of underground storage …

Thermo-Mechanical Responses For Porous-Permeable Media With Applications To Underground Coal Gasification., Kang Yong Lee

Graduate Theses, Dissertations, and Problem Reports (ETD)

A two-dimensional crack/cavity thermo-mechanical-elastic loading model for characterizing the response of porous—permeable media is developed. The stress and displacement field expressions for this formulated model, with a general elliptic crack/cavity shape, are derived by using the complex variable approach for twodimensional thermo-elastic problems. The critical loading criteria for crack-closure are expressed in terms of the applied stresses and temperature gradient and the mechanisms for line crack-closure are determined from these conditions. Expressions for the contact normal stress and frictional shear stress are analytically developed by extending McClintock and Walsh's crack-closing concept to thermo-mechanical loads. The stress intensity factors for a …

Structural And Mechanistic Studies Of Tricyclo(4.1.0.0(2,7))Heptanes Containing Bridgehead Group-Iva Metal Substituents., Subramanian Chandrasekaran

Graduate Theses, Dissertations, and Problem Reports (ETD)

The results of the acid-catalyzed (0.001 M H+ ) methanolysis of 30 are quite significant because they indicate that the methanolysis of 30 in neutral or basic media must involve the formation of a pentacoordinate intermediate by a pathway involving the initial attack of methoxide ion on J30, The intermediate then reacts with two molecules of methanol (regenerating a methoxide ion) to produce a hydrogen-bonded species which decomposes to products via a sixcentered transition state in a rate-determining step.

Unified Arts: An Integrative Approach To Curriculum Design For The Art, Home Economics, And Industrial Arts Subject Areas In The Middle Grades., John Michael Ritz

Graduate Theses, Dissertations, and Problem Reports (ETD)

The problem of this study is to develop a conceptual model of unified arts to serve as a base for interdisciplinary curriculum development by art, home economics,and industrial arts educators of the middle grades. A clear indication of the aims of the unified arts approach to curriculum design is a prerequisite to achieving significant improvements in mankind's aesthetic and technical qualities. This entails a description of what unified arts is and how it might be implemented in the middle grades setting.

Chemical Composition And Nutritional Benefits Of Acid Resistant Hemicellulose., James Edward Williams

Graduate Theses, Dissertations, and Problem Reports (ETD)

The present work was conducted to determine the influence of methods of preparation of corncob acid-resistant hemicellulose on its chemical composition and rat growth stimulation. ARH preparations involved either treatment with cation resin, solubilization of crude ARH and reprecipitation in ethanol, treatment of the hydrolysate with carbon or recovery of the non-dialyzable portion of corncob hydrolysate. All ARH preparations significantly improved growth and feed utilization of rats when fed at the 0.05% level of the diet. The reduction of the phenolic content of the ARH preparation did not influence rat growth. The carbohydrate components of the ARH preparation were similar …