Digital Commons Network^™

The Political And Ideological Context Of Broadcast News Cbs Nightly News Coverage Of Eastern Europe, Terese A. Thompson

Graduate Program in International Studies Theses & Dissertations

This study examines the influence of United States/Soviet relations on network news coverage of Eastern Europe. It also measures the ideological character of network news reports about Eastern Europe or how television news in the United States is constructed along a particular ideological vision. The specific operational questions researched are: Is network news content influenced by trends in United States/Soviet relations? How is the relationship between the United States and the Soviet Union reflected in the ideological presentation of the news? Samples of CBS nightly news programs were analyzed for quantitative and qualitative changes in news content over time. Analysis …

Iran-Iraq War (1980-1988) An Attempt To Explore The Role Of Khomeiniism In The War, Masoud Bonyanian

Graduate Program in International Studies Theses & Dissertations

This thesis investigates the impact of Khomeiniism on the Shi'ites of Iraq. Specifically it seeks to determine whether the rise of Khomeiniism in Iran inspired Iraq's Shi'ite majority to rise against the Ba'athist leaders of Iraq with the object of establishing an Islamic Republic. The paper focuses on the political activities of the Iraqi Shi'ites from Ayatollah Khomeini's rise to power in Iran in February 1979 to the beginning of hostilities between Iraq and Iran in September 1980. The evidence indicates mounting anti-Ba'athist political activity by the Shi'ites which included daily rioting, attempted assassinations, and a rise in the number …

An Analysis Of Quality Assessment Efforts In Health Care, Margaret M. Curran

Community & Environmental Health Theses & Dissertations

The purpose of this research was to determine whether consensus could be reached by experts in the field of quality assurance on the most important indicators of health care quality and to determine whether cause and effect relationship could be attributed to the process and outcome indicators suggested in our survey. We invited participation by a representative sample of experts in a Delphi Panel to address these issues. There were 49 respondants to our Round One Questionnaire and they evaluated the relative importance of 50 process and 50 outcome indicators. Panelists were asked to establish cause and effect relationships between …

Indifference Graphs And The Single Row Routing Problem, Peter J. Looges

Computer Science Theses & Dissertations

This thesis investigates the subclass of interval graphs known as indifference graphs. New optimal algorithms for recognition, center, diameter, maximum matching, Hamiltonian path and domination in indifference graphs are presented. The recognition algorithm produces a linear order with properties which allow the solution of the other problems in linear time. Indifference graphs are further applied to the single row routing problem which results in both sequential,. and parallel routing algorithms.

Rotationally Resolved Laser Spectroscopy Of The 3s2Σ+ ← 2p2ii Transition In 6li20ne And 7li20ne Van Der Waals Molecules, Chang Jae Lee

Physics Theses & Dissertations

The rotationally resolved absorption spectrum of the ⁶Li²⁰Ne and ⁷Li²⁰Ne 3s²Σ⁺ ← 2p² II transition has been observed. For each isotope, thirteen vibrational transitions from four vibrational levels (v"=0, 1, 2, and 3) of the lower 2p² II to six (v’=0, 1, 2, 3, 4, and 5) of the upper 3s*Σ⁺ electronic state have been rotationally analyzed. Adiabatic potentials and dissociation energies for both states have been obtained through an inverse perturbation analysis. For the 2p²II state, a well depth of 212(5) cm^-1 and an …

Norfolk Resource Mothers Program Evaluation, Margaret Moore Konefal

Theses and Dissertations in Urban Services - Urban Management

This study uses the post-test only design to assess the preliminary effects of a community-based policy initiative, the Norfolk State University Resource Mothers Program (RMP), on the gestational ages, birth weights, and survival rates of infants born to participating adolescent mothers.

The RMP uses experienced mothers or paraprofessionals similar in race and socio-economic status to the participating teenagers. These persons are trained to assist pregnant adolescents and teen parents with nonmedical dimensions of pregnancy and child care. They recruit teens into the RMP, encouraging them to get early prenatal care. Resource Mothers provide teen mothers and their families with practical …

Magnetic-Field Distributions In Zinc-Nickel Ferrite, T. A. Dooling, Desmond C. Cook

Physics Faculty Publications

The Mössbauer effect has been used to study the microscopic magnetic properties of the cubic microwave ferrite (Zn_0.41Ni_0.59)Fe₂O₄ at 300 K. The magnetically split spectrum is broad and unresolved due to the overlap of the hyperfine magnetic fields at the tetrahedral and octahedral sites. This is caused by a distribution of magnetic fields at each site. The distribution is especially large and asymmetric at the octahedral site and is due to the fact that the iron atoms at this site are influenced by the presence of both iron and zinc at the tetrahedral …

Phase Changes In Plasma‐Sprayed Zinc‐Nickel Ferrite, T. A. Dooling, Desmond C. Cook

Physics Faculty Publications

The magnetic and crystalline properties of a plasma‐sprayed coating of the microwave absorbing zinc‐nickel ferrite, (Zn_0.41Ni_0.59 )Fe₂O₄ have been studied at 300 K using the Mössbauer effect and x‐ray diffraction (XRD). Both techniques indicate that the plasma‐sprayed material separated into two phases. The first is a nickel‐rich phase with magnetic fields of 47.5 and 44.5 T at the tetrahedral and octahedral sites, respectively. The second is a zinc‐rich phase, zinc meta‐ferrite, having a small magnetic field of 4.2 T. The quadrupole splitting of this second phase is ΔE=0.34 mm s⁻¹, …

Effectiveness Analysis Of Knowledge Bases, Shensheng Zhao

Computer Science Theses & Dissertations

Knowledge base systems (expert systems) are entering a critical stage as interest spreads from university research to practical applications. If knowledge base systems are to withstand this transition, special attention must be paid to checking their effectiveness. The issue of effectiveness analysis of knowledge base systems has been largely ignored and few works have been published in this field. This dissertation shows how the effectiveness of a knowledge base system can be defined, discussed and analyzed at the knowledge base system level and the knowledge base level. We characterize the effectiveness of a knowledge base system in terms of minimality, …

Development And Characterization Of Monoclonal Antisperm Antibodies: Potential For Contraception, Dilrowshan H. Haque

Theses and Dissertations in Biomedical Sciences

There is an expressed need to develop a greater variety of safe contraceptive methods which would find acceptance worldwide, particularly in developing countries. Immunization against spermatozoa might be such a method as judged by the accumulated evidence from studies on human females and in a number of female animal species.

Two extraction techniques were used for sperm membrane antigen isolation. The first technique involved NP-40 detergent for antigen extraction from human motile sperm and the second technique employed homogenized human testis for antigen extraction. Using these immunogens, sperm membrane-specific monoclonal antibodies (MAbs) were developed. When these antisperm MAbs were subjected …

Problems And Coping Styles Of Antepartal Patients Being Treated For Risk Of Preterm Labor, Janet Wiehrs Rogers

Ellmer School of Nursing Theses & Dissertations

The purpose of this study was to identify the range of problems and coping strategies as perceived by antepartal patients experiencing medical treatment to decrease risk of preterm labor. In this qualitative, interpretive study problems and coping strategies were identified through semi-structured interviews with a convenience sample of seven antepartal patients. Using content analysis of interview data, identified problems were categorized, and for each problem, coping strategies were identified and grouped using the categories of the Jalowiec Coping Scale. Major categories of problems were: bedrest, role change, finances, uncomfortable emotions, and reactions of families and friends. Supportant, palliative, and confrontive …

Effects Of Ultrasonic Scaling And Hand Scaling On Root Typography, Kim Lee Herremans

Dental Hygiene Theses & Dissertations

The purpose of this study was to determine the effects of scaling and root planing with the modified P-10 Cavitron^R tip and curet instruments on root surface topography. Sample specimens included 20 periodontally involved extracted human teeth. Specimens were carved into a three split root design, each sample specimen acting as its own control. Control and experimental surfaces were randomly assigned to each specimen. Scaling techniques were applied on the assigned experimental surfaces for 2 minutes and 14 seconds. A scanning electron microscope was used to examine and micrograph root surface topography of experimental surfaces. Photomicrographs were evaluated using …

Vitellogenesis In Hyalomma Dromedarii (Acari: Ixodidae): A Model For Analysis Of Endocrine Regulation In Ixodid Ticks, Martin E. Schriefer

Theses and Dissertations in Biomedical Sciences

The egg yolk proteins, vitellins, and their hemolymph precursors, vitellogenins, were characterized in the ixodid tick Hyalomma dromedarii. Three vitellins were identified. The high molecular weight vitellins, VN A and VN B, were composed of seven homologous molecular weight subunit polypeptides, VN 1-7. VN A appears to be a dimeric form of VN B. VN C was composed of single polypeptide. Low levels of vitellogenin, were identified in western immunoblots utilizing antibody raised against purified vitellin. Adult protein and polypeptide profiles, including vitellin and vitellogenin, were characterized as a function of sex, tissue and reproductive development. Quantitative assessment of the …

Computer Use In The Scientific Office, Douglas L. Miller

Psychology Theses & Dissertations

Over the past two decades computers in research and development organizations have become a complex and integral part of the work process. Yet to date only a handful of systematic investigations have addressed issues involving scientists' or other professionals' use of computers, and very little is known about factors influencing use (Bikson and Gutek, 1983; Blacker and Brown, 1986; Collopy, 1988; Gasser, 1986; Helander, 1985; Nickolson, 1985; Pope, 1985). As a result, this research was designed to address four objectives. The first was to develop and evaluate a descriptive model of variables influencing scientists' computer use. The second objective was …

Simulation Of 3-D Viscous Flow Around A Nozzle-Afterbody At High Speeds, Wendy B. Hoffman

Mechanical & Aerospace Engineering Theses & Dissertations

Turbulent shear flows at supersonic and hypersonic speeds around a nozzle-afterbody are numerically simulated and investigated. The specific application is for the flow around the nozzle-afterbody of a generic hypersonic vehicle. Accurate simulation of viscous, separating flows is not an easy task, and it is complicated by turbulence modeling concerns. A main objective of this study is to numerically simulate the afterbody flowfield while addressing the turbulence modeling problem. The viscous flow considered i~ this study is characterized by three-dimensional corner flows, shock boundary layer interactions, plume flow, shear layers, and cross-flow separations. Accurate simulation of this flow requires solution …

Investigation Of Effects Of Nose Bluntness And Angle Of Attack On Slender Bodies In Viscous Hypersonic Flows, Ashwini Kumar Sehgal

Mechanical & Aerospace Engineering Theses & Dissertations

Hypersonic flows over cones and straight biconic configurations are calculated for a wide range of free stream conditions in which the gas behind the shock is treated as perfect. Effect of angle of attack and nose bluntness on these slender bodies in air is investigated extensively. The numerical procedures are based on the solution of complete Navier-Stokes equations at the nose section and parabolized Navier Stokes equations further downstream. The flow field variables and surface quantities show significant differences when the angle of attack and nose bluntness are varied. The complete flow field is thoroughly analyzed with respect to velocity, …

A Record Of The Present Moment: A Comparison Of The Early And Later Narrative Work Of Gertrude Stein, Elisa Stuber Cohen

English Theses & Dissertations

Gertrude Stein began and ended her literary career with the narrative, a mode of discourse which she reworked and altered to fit her vision of twentieth-century reality. In her early work with the narrative (Three Lives and The Making of Americans), she reevaluated traditional techniques of plot, theme, and character and began to emphasize the textual surface over referential meaning. But feeling restricted by the narrative, Stein left it behind in search of the value of the individual word, which she thought was lost in nineteenth-century rhetoric. For the next twenty-five years, she concentrated on poetry, plays, and …

Fertilization And Mouse Embryo Development In The Presence Of Midazolam, Maria Leavitt

Biological Sciences Theses & Dissertations

The development of mouse embryos in vitro has provided a unique opportunity for the study of cellular differentiation and the influence of various agents on differentiation. Midazolam is administered for conscious sedation in the recovery of human ova. In the Norfolk IVF Program, midazolam is found in varying concentrations in follicular fluid. Mouse embryo formation and development has been used to test midazolam's effect on fertilization and early development as a model of human in vitro fertilization and development. Midazolam' s effects were studied using varying doses of midazolam on (1) in vivo fertilization and subsequent cell division, and (2) …

Q Improvement Of A 5.2 Ghz Te011 Cavity By Incorporating Y1Ba2Cu3O7-X, R. Joseph Leclear

Electrical & Computer Engineering Theses & Dissertations

Research is undertaken to apply high temperature superconducting material to improve the quality factor (Q) of a 5.2 GHz cylindrical resonant cavity. In particular, the approach is to electrophoretically deposit polycrystalline Y₁Ba₂Cu₃O_7-x (YBCO) on the conducting surface of the cavity cylinder. Spalling of the YBCO ceramic coating due to expansion and contraction of the cavity during sintering and testing is overcome by segmenting the cylinder. Results show that the Q of the cavity is increased over that of a copper cavity at temperatures below 60 K. At 20 K, improvement exceeds a factor …

Analytical Modeling And Simulation For Investigation Of A Digital Gas Filter Correlation Radiometer, Catherine P. Mcgowan

Electrical & Computer Engineering Theses & Dissertations

This thesis investigates a digital gas filter correlation radiometer called the Tropospheric Radiometer for Atmospheric Chemistry and Environmental Research (TRACER), which will be used to remotely measure carbon monoxide at three levels in the troposphere. The nadir-viewing radiometer measures the differential absorption of radiation through the atmosphere at 4.67@m and 2.33pm wavelengths. This thesis develops an analytical model of the TRACER measurement process to evaluate the effect of varying certain system parameters on the measurement. The independent sampling criterion and the response of linear systems to random signals are explained. A parametric simulation model is also developed to evaluate the …

An Erasable Optical Memory Based On Stimulated Electronic Transition Concept, James D. Satira

Electrical & Computer Engineering Theses & Dissertations

Erasable optical memory systems with a high storage density and a large data transfer rate are required for many real time data acquisition systems such as those placed aboard NASA's space born platforms. A new concept for erasable optical memory involving stimulated electronic transitions (SET) will meet these requirements. The SET concept useful in erasable optical storage systems was demonstrated in MgS and SrS doped with Eu and Sm. The optical properties of these materials were studied. The reading and writing wavelengths for these samples were determined to be 950 and 514 nm respectively. The peaks of the emission spectra …

Monte Carlo Simulation Of Millimeter-Wave Gunn Effect Oscillators, Ramani Vaidyanathan

Electrical & Computer Engineering Theses & Dissertations

Monte Carlo simulations have been carried out to investigate the performance of microwave Gunn oscillators. Three separate aspects of the simulation problem have been comprehensively addressed in this work. First, the presence of an external circuit has been self-consistently incorporated into the calculations. The inclusion of the external circuit facilitates a study of the circuit controlled regime, and correctly models effects arising from the time dependent boundary conditions. Secondly, microscopic details of the electronic relaxation mechanisms which ultimately control the frequency response limits, have been taken into account through an iterative Monte Carlo-Poisson scheme. This procedure overcomes a potential shortcoming …

Difference Between Maternal Characteristics And Home Environments Of Day Care And Non-Day Care Families, Eva Granahan Clarke

Psychology Theses & Dissertations

The purpose of the present investigation was to examine differences between maternal characteristics and the home environments of families who planned to use day care and those who did not. The relationships between maternal personality characteristics and the other variables under investigation were also examined. The subjects completed four questionnaires which assessed attitudes towards working mothers, maternal separation anxiety, parenting stress, and general personality characteristics. The home environment was assessed by the Home Observation for the Measurement of the Environment. The subjects in the study were 16 mothers who planned to remain home and not place their children in day …

Identification And Ranking Of Stressors Specific To The Acute Head Care Nurse, Joan A. Breen

Community & Environmental Health Theses & Dissertations

No abstract provided.

Promoting Careers In Dental Hygiene: The Dental Hygienist's Role, Taline Dadian

Dental Hygiene Theses & Dissertations

The purpose of this study was to investigate whether practicing dental hygienists promote their profession as a desirable career. A self-designed, 48 item questionnaiire, Dental Hygienists' Participation in Career Recruitment, was mailed to a random sample of 600 dental hygienists residing in the Commonwealth of Virginia. Data were obtained from 393 dental hygienists for a 65.5 percent response rate. Responses from each item were analyzed by frequency distributions, percentages and chi-square test for independence at a 0.05 level of confidence. The factors determined to influence dental hygienists' decisions towards promoting careers in dental hygiene included the perceived image of the …

"But Where Shall Understanding Be Found?" Searching For Sophia, Personified Wisdom, Kathleen Damiani

Institute for the Humanities Theses

The thesis examines the image of Sophia, divine feminine wisdom, from the point of view of -archetypal psychology. The paper describes the emergence of Sophia in the Old Testament against the background of the development of monotheism in Judaism. Modern scholarship defines Sophia in religious terms, thus restricting her meaning to the limits imposed by the Judaeo-Christian concept of God. When the "problem" of Sophia is removed from the language of theology, however, and re-examined from the perspective of archetypal psychology, new meanings emerge. The position taken is that Sophia is an archetypal image which personifies the capacity of reflection …

A Study Of The Reactions Of P-Dipiperidino Benzene And Its Synthesis From 1,4-Dicyano-1,4-Dipiperidinocyclohexane, Ilias Konstantinos Dorziotis

Chemistry & Biochemistry Theses & Dissertations

Following a classical synthesis of PCP² Williams attempted to prepare l,4-diphenyl-1,4-dipiperidino cyclohexane 4¹ . This approach involved the preparation of 1,4- dicyano-1,4-dipiperidinocyclohexane 7 and the subsequent decyanation of the compound with phenylmagnesium bromide to produce 4. This attempt failed, however, as only the monophenylated product, 8, was thought to be obtained. This product had unique reactivity, producing a blue intermediate upon treatment with halogen in both aqueous and non aqueous media. The same intermediate was produced upon irradiation of a chloroform solution of this product with sunlight or UV light in a UV chamber, with the …

The Study Of Natural Product(S) From Opsanus Tau (Linnaeus), The Oyster Toadfish, Miki Taira

Chemistry & Biochemistry Theses & Dissertations

Opsanus tau (Linnaeus), the Oyster toadfish, commonly inhabits the Chesapeake Bay. The Oyster toadfish has been categorized as a venomous and/or ichthyotoxic fish; however, chemical studies to substantiate these claims have not been forthcoming.

The oyster toadfish has dorsal and opercular spines which are believed to secrete a venom(s). Based on our findings, the oyster toadfish does not secrete venom(s) from these spines.

The oyster toadfish secretes large amounts of a mucus when it is irritated. 3-Octanone was believed to be the major ichthyotoxic component of the mucus from the oyster toadfish. Based on our investigation, 3-octanone is present only …

Prediction And Control Of Asymmetric Vortical Flows Around Slender Bodies Using Navier-Stokes Equations, Tin-Chee Wong

Mechanical & Aerospace Engineering Theses & Dissertations

Steady and unsteady vortex-dominated flows around slender bodies at high angles of attack are solved using the unsteady, compressible Navier-Stokes equations. An implicit upwind, finite-volume scheme is used for the numerical computations.

For supersonic flows past pointed bodies, the locally-conical flow assumption has been used. Asymmetric flows past five-degree semiapex cones using the thin-layer Navier-Stokes equations at different angles of attack, freestream Mach numbers, Reynolds numbers, grid fineness, computational domain size, sources of disturbances and cross-section shapes have been studied. The onset of flow asymmetry occurs when the relative incidence of pointed forebodies exceeds certain critical values. At these critical …

Identification Of Health Promotion Behaviors, Perceived Health Status And Perceived Health Education Needs Of Older Women, Susan Carol Fellinger Reynolds

Ellmer School of Nursing Theses & Dissertations

The health-promoting behaviors, perceived health status, and perceived health education needs of older women were identified in this non-experimental, descriptive, correlational study. Fifty women over 60 years of age, living in three housing complexes for the elderly, disabled and handicapped in two southeastern United States cities were asked to complete The Health-Promoting Lifestyle Profile, The Perceived Health Status Questionnaire, The Health Education Needs Questionnaire, and Demographic Data Sheet. It was concluded that the women engaged in a high level of health-promoting behaviors. The participants rated their health as good and rated their health as good compared to that of other …