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Effects Of Multiple Scattering And Surface Albedo On The Photochemistry Of The Troposphere, Tommy Reinhold Robert Augustsson

Mechanical & Aerospace Engineering Theses & Dissertations

A one-dimensional photochemical model of the troposphere containing the species of the nitrogen, oxygen, carbon, hydrogen, and sulfur families has been developed and used to investigate the vertical profiles and the natural (including atmospheric chemical reactions) and anthropogenic sources and sinks of these species. The species continuity equations are solved numerically applying prescribed boundary conditions. The vertical flux is simulated by use of the parameterized eddy diffusion coefficients. Heterogeneous losses (e.g. rainout, gas-to-particle chemistry, and dry deposition), are parameterized to make calculated profiles consistent with measurements. The photochemical model is coupled to a radiative transfer model that calculates the radiation …

Games And Gaming Of The Stuart Aristocracy, Vicky Ann Sanderlin

History Theses & Dissertations

Games and gaming provide insight into the lives of the people of the past. This thesis analyzes the games and gaming patterns of the aristocracy of Stuart England. This examination of gaming concentrates on the place of leisure games in the world of the elite. The study focuses on games suitable for inclement weather and includes both children's and adult's games from the period.

This thesis addresses three basic questions: 1) who were the gamesters, 2) when and where did they game, and 3) what games did they play and how did they play them? Answers to these questions have …

Characteristics Of Sediment Transport In Overwash Surges, Paul Richardson Bowen

OES Theses and Dissertations

Sediment samples taken from a washover deposit were used to determine the mode of sediment transport within overwash surges. The determination of sediment transport mode is based on the concept of hydraulic equivalency of different density grains. Hydraulic equivalency may be based on settling velocities or entrainment velocities. Two individual mineral grains of different densities cannot have the same settling and entrainment velocities. If the settling velocities of each grain are similar, then the less dense grain must be physically larger to settle at the same rate as the smaller denser mineral. However, once both of these grains have made …

Chemistry Of Organic N-Chloramines, Formation Of Arenesulfonamides By Derivatization Of Organic N-Chloramine With Sodium Arenesulfinate, Katherine F. Bowdring

Chemistry & Biochemistry Theses & Dissertations

Organic N-chloramines are recognized by-products of chlorinated water systems. Because of their chemistry, none have been isolated or identified.

This paper discusses a method for the derivatization of the organic N-chloramines based on a nucleophillic substitution mechanism. N-Chloro derivatives of amines of various structures were studied including primary and secondary aliphatic amines, as well as amino acids. The effect of the presence of other functional groups including aromatic and unsaturated systems was investigated.

Derivatization was done by three different methods, one involving derivatization of the pure N-chloramine, and two involving derivatizations of the N-chloramine generated in situ. Seventeen arenesulfonamides have …

The Synthesis And Evaluation Of The Biological Activity Of Heterocyclic Analogs Of Phencyclidine, Julian Dew Mckenney Jr.

Chemistry & Biochemistry Theses & Dissertations

Using the classical synthetic approach described by Maddox and co-workers⁴³, the decyanation reaction of 1- piperidinocyclohexane carbonitrile (PCC), 5, was attempted using the heterocyclic anions of 2-methyl-5-nitropyridine, 22, 2-amino-5-nitropyridine, 23, and 2-hydroxy-5-nitropyridine, 24; however, the desired pyridine analogs of phencyclidine (PCP), 1, could not be prepared under these conditions. Attempts to prepare the same analogs via addition of these anions to the iminium tosylate and hydrobromide salts also proved unsuccessful.

The failure to observe the desired decyanation reaction has been attributed to the special sterochemical restrictions of the hindered nitrile of PCC in that facile …

The Effect Of Kindergarten Entrance Age On School Success In Kindergarten And First Grade In Selected Portsmouth Private Schools, Mary Lindsey H. Hester

Theses and Dissertations in Early Childhood Education

This two-year study compared kindergarten children by age and sex on cognitive development, emotional adjustment, and social development. A similar comparison was made of the sample at the end of their first grade year.

The sample (N=57) consisted of the total kindergarten enrollments of two private schools in Portsmouth, Virginia. Those children who had entered kindergarten before their fifth birthday were defined as "younger," and the remaining sample, "older."

The tool for measuring cognitive development was the Metropolitan Readiness Test in kindergarten, and the Metropolitan Achievement Test in first grade. A self­ designed developmental rating sheet was used both years …

Growth And Recruitment Of Two Penaeids In The Bay Of St. Louis, Mississippi During 1979, Teresa C. Heaton

OES Theses and Dissertations

Juvenile brown (Penaeus aztecus, Ives) and white (Penaeus setiferus, Linnaeus) shrimp were collected from two stations of a nursery area in St. Louis Bay Mississippi, during May to October, 1979. Periods of shrimp recruitment and growth were determined to discern whether the concurrent environmental variables of salinity and temperature had an influence on shrimp abundance and yield. Growth estimates were obtained from length frequency measurements of trawl samples taken over a 24-h period per month from each station. An analysis of variance of length versus the variables of sex, month, station, time of day, salinity and …

Continental Shelf Processes Affecting The Oceanography Of The South Atlantic Bight. Progress Report, 1 June 1980-1 June 1981, Larry P. Atkinson

CCPO Publications

(Introduction) In the past year we executed our largest field effort to date, GABEX-1. The vast amount of data gathered has now been reduced to workable form and we report on some of the first results in this report. The GABEX-1 measurements combined with other observations in the last year have greatly increased our understanding of the South Atlantic Bight during the spring transition period when the shelf goes from horizontal to vertical stratification.

This progress report contains selected reprints, drafts, and parts of technical reports that represent our work over the past three years.

Numerical Model Simulation Of Offshore Flow During The Winter Season, Maria Cintia Piccolo

OES Theses and Dissertations

Because of the step function variability of heat and moisture flux in coastal zones, adequate descriptive models of mesoscale coastal circulation and weather patterns demand high spatial resolution in the analysis of wind, temperature and moisture patterns. To obtain realistic concepts of offshore flow the sparse offshore data networks need to be supplemented by mesoscale numerical models. The problems associated with the modeling of offshore flow across the east coast of the United States during the winter season have been investigated with a simple two dimensional numerical model of the planetary boundary layer.

The model has two predictive equations for …

The Relationship Of Student Sex, Attractiveness, And Self-Esteem To Teacher Preference Of Seventh Through Eleventh Grade Private School Students, Susan Montgomery Booker

Teaching & Learning Theses & Dissertations

This study tested the null hypotheses that student sex, attractiveness, and self-esteem were not related to teacher preference. It was assumed that these variates were communicated nonverbally through photographs. Two hundred twenty yearbook photographs of Caucasian seventh through eleventh grade students attending a private school were considered for the study. Attractiveness and self­ esteem scores were associated with each student's :10Lo­ graph. The attractiveness score was obtained by a survey of the photographs. The Coopersmith Self-Esteem Inventory was administered to the students to produce the self-esteem score. A set of criteria was established to determine degrees of attractiveness and self-esteem. …

Geomorphology And Dynamics Of A Sand Wave In Lower Chesapeake Bay, Virginia, Gerardo Miguel Eduardo Perillo

OES Theses and Dissertations

A single, more or less isolated, sand wave in a sand wave field recently discovered in the lower Chesapeake Bay, Virginia, was studied intensively for morphology, sedimentology and in terms of dynamic processes. The morphologic investigation consisted of bathymetric surveys of the sand wave field and the specific sand wave. Twenty-five grab samples and four box cores were obtained from different segments of the feature studied. Textural parameters of the samples were determined, and a multivariate technique was utilized to identify subenvironments on the feature. The box cores provided information on the internal structure of the sand wave.

Observations of …

A Survey To Determine If The Goals Of Aiasa Are Being Met By Participating Aiasa Students, Hubert P. Rodriguez

OTS Master's Level Projects & Papers

The problem of this study is to determine if the goals of AIASA are being met by participating industrial arts students.

Role Of Gulf Stream Frontal Eddies In Forming Phytoplankton Patches On The Outer Southeastern Shelf, James A. Yoder, Larry P. Atkinson, Thomas N. Lee, Hongsuk H. Kim, Charles R. Mcclain

CCPO Publications

Continuous surface mapping of temperature, salinity, and chlorophyll along a 300-km segment of the Gulf Stream cyclonic front defined the spatial scales of a large diatom patch that persisted throughout a 10-day study. The patch was localized in the upwelled cold core of a Gulf Stream frontal eddy centered over the 200-m isobaths off Jacksonville, Florida, in April 1979. The µ g liter^-1 surface chlorophyll isopleth enclosed an area >1,000km² with an alongshore dimension of 130km. Surface chlorophyll exceeded 5µg liter^-1 within the upwelled cold core of the eddy, 10-100X higher than concentrations in Gulf Stream or …

Efficacy Of Gaming Verses Video Viewing In Hospital Annual Mandatory Training, W. Lawrence Daniels

OTS Master's Level Projects & Papers

This study was designed to investigate an alternative method of instruction for Maryview Medical Center in providing annual training to all of its employees in subjects required by outside agencies. The goal of this research will be to determine the more effective method for the employees of Maryview Medical Center to immediately retain cognitive material.

A Study To Determine The In-Service Needs Of Vocational Education Teachers In The City Of Chesapeake, Grover T. Eure Jr.

OTS Master's Level Projects & Papers

The questions presented here will give specific meaning and direction to the problem under study. The data collected in this study will provide answers to these research questions: 1. What is meant by in-service education? 2. Are supervisors aware of teacher in-service needs? 3. Who should arrange in-service education sessions for vocational teachers? 4. What are the characteristics of an effective in-service program?

Recommendations For Master's Level Programs In Computer Science: A Report Of The Acm Curriculum Committee On Computer Science, Kenneth I. Magel, Richard H. Austing, Alfs Berztiss, Gerald L. Engel, John W. Hamblen, A. A. J. Hoffmann, Robert Mathis

Computer Science Faculty Publications

The ACM Committee on Curriculum in Computer Science has spent two years investigating master's degree programs in Computer Science. This report contains the conclusions of that effort. Recommendations are made concerning the form, entrance requirements, possible courses, staffing levels, intent, library resources, and computing resources required for an academic, professional, or specialized master's degree. These recommendations specify minimum requirements which should be met by any master's programs. The Committee believes that the details of a particular master's program should be determined and continually updated by the faculty involved. A single or a small number of model programs are not as …

Slip Dislocation Formation During Continuous Wave Laser Annealing Of Silicon, Helmut Baumgart

Electrical & Computer Engineering Faculty Publications

High-voltage electron microscopy (HVEM) has been used for the investigation of the defect structure in cw laser-annealed silicon. We report for the first time a (HVEM) analysis of the formation processes involved in the nucleation and glide of slip dislocations during epitaxial regrowth by cw laser annealing of ion-implantation damaged silicon layers. Based on the combined optical and HVEM observations a model of the dislocation generation and glide processes is presented.

High Resolution Laser Absorption Spectroscopy Of Ozone Near 1129.4 Cm-1, Lawrence N. Majorana

Physics Theses & Dissertations

A Beer's Law experiment was performed with a tunable laser to determine self broadened line shape parameters of one infrared absorption ozone line in the v1 band for ten pressures from 0.26 to 6.29 Torr at 285K. SO₂ line positions were used for wavelength calibration. Line shapes were iteratively fitted to the Voigt function at a Doppler width of 29.54 MHz (HWHM) resulting in values for the integrated line• strength, ( S), of (0.144 +/- 0.007 ) x ·10^-20 cm-1/molecule cm-2, line center frequency, (υ_ο) of 1129.426 cm-1 and the Lorentzian contributions to half width, (α …

Sound Absorption In N2-H2O Gas Mixtures At Elevated Temperatures, Roger W. Meredith

Physics Theses & Dissertations

Sound absorption measurements were conducted in N₂ -H₂O gas mixtures at 297, 343, and 387 Kelvin to determine the location of the vibrational relaxation peak of nitrogen on the frequency/pressure, (f/P), axis as a function of humidity and temperature. At low humidities the best fit of the data is to a linear relationship between (f/P)_max and humidity (h) yields a slope of 1 .84 X 10⁴ Hz/ atm mole fraction at all three temperatures. The slope is the same as that reported by Zuckerwar and Griffin (2.00 X 10⁴ Hz/atm mole fraction) but is …

Short-Term Effect Of Preventative Oral Health Services On Drug Rehabilitation Clients' Self Concept, Susan Elizabeth Jones

Dental Hygiene Theses & Dissertations

The purpose of this study was to determine if a statistically significant difference existed in self concept prior to and following preventive oral health services in clients undergoing drug rehabilitation. Individuals residing at the Drug Dependency Treatment Program Unit at McGuire Veterans Administration Hospital in Richmond, Virginia, comprised the control and experimental groups.

Data were organized according to a randomized groups, pretest-posttest design with preventive oral health services as the active independent variable. The dependent variables, Total Positive Score, Self Satisfaction Score, and Physical Self Score were measured by the Tennessee Self Concept Scale.

One grouping factor, one trial factor …

The Synthesis And Biochemical Evaluation Of Potential Acetylcholinesterase Reactivators, Andrea Mcdearmid Lunsford

Chemistry & Biochemistry Theses & Dissertations

Objectives of this research were to (1) synthesize, and (2) evaluate new compounds which would be potential reactivators of organophosphate-inhibited acetylcholinesterase.

A series of 1,8-diazafluorenone and 2,2'bipyridylketone oximes and oxime methiodides were synthesized (11, 13, 14, 22, 24). These compounds were developed as structural analogs of 2-PAM (2-Pyridinealdoxime methiodide) and TMB-4 (1,1Trimethylene-Bis(4-formylpyridinium bromide)dioxime), the current drugs of choice for treatment of organophosphorous poisoning.

Acetylcholinesterase from electric eel was inhibited with DFP (diisopropylfluorophosphate), an irreversible-type inhibitor, and the inhibited enzyme was treated with the various reactivator compounds. The reactivation assays were monitored with pH stat apparatus, and the data were evaluated …

Use Of Disclosing Tablets And Signs Of Gingival Bleeding For Improving The Oral Health And Oral Hygiene Status Of Adult Dental Clients, Susan Elaine Thompson

Dental Hygiene Theses & Dissertations

The purpose of this investigation was to compare two methods for improving the oral health and oral hygiene status of adult dental clients. Fifty subjects were selected and randomly assigned to two groups. Over a 75-day period, Group A used disclosing tablets on a daily basis to reveal dental plaque deposits to control dental disease; Group Bused signs of gingival bleeding on a daily basis to control dental disease. Clients attended four appointments for oral evaluation. The oral health and oral hygiene status of the adult dental clients were measured at each appointment using the Gingival Bleeding Index and the …

Self-Starvation Of Rats In Running Wheels As A Function Of Activity-Food Interval And Food Consistency, Ingrid Kalwas Stephens

Psychology Theses & Dissertations

Rats under restricted food schedules are generally capable of maintaining stable body weights by reducing energy output. However, if they are given access to running wheels, they fail to respond with this adaptive strategy. Instead, they show an increase in activity and a paradoxical decrease in caloric intake, leading to the development of stomach ulcers and death. Since food-yoked controls kept in standard cages remain ulcer-free and survive, the formation of stomach lesions appears to be due to the combination of increased energy expenditure and insufficient food intake. The present study attempted to attenuate this self-starvation effect by providing more …

Litter Production And Nutrient Content Of Litter In The Seasonally Flooded Dismal Swamp, Marta M. Gomez

Biological Sciences Theses & Dissertations

Litter production was studied in four plant communities in the Great Dismal Swamp, Virginia, that differ primarily in species composition and flooding regime. Greatest leaf deposition occurred in the more flooded communities, maple-gum (Acer-Nyssa) with 536 g m^-2 yr^-1 and cypress (Taxodium distichum (L.) Richard) with 528 g m^-2 yr^-1, followed by the cedar (Chamaecyparis thyoides (L.) BSP) and mixed hardwood (Quercus-Acer-Nyssa-Liquidambar) communities with 506 g m^-2 yr^-1 and 455 g m^-2 yr^-1, respectively. Litter nutrient concentrations were generally higher in the cypress and maple-gum stands, indicating greater nutrient availability …

How Young Children Perceive Their Teachers: A Developmental Study, Mary Meta Lowe

Psychology Theses & Dissertations

This is a developmental study of how young children perceive their teachers. The primary aims of the study are: 1) to provide a developmental picture of elementary school children's perceptions of their teachers, and 2) to determine the accuracy of teachers' awareness of the perceptions of the children. Instrumental to these primary aims are two subordinate objectives: 1) to construct a scale of reactions to teacher characteristic behaviors that are understandable for young children and yet meaningful to adults, and 2) to test the utility of the scale for obtaining measures of affect. Within each of two schools, approximately 15 …

Hydrographic Observations In The Georgia Bight (April 1979), S. R. Lansey, L. P. Atkinson

CCPO Publications

During a cruise in the Georgia Bight in April 1979, an onshore-offshore hydrographic section of thirteen stations was repeated thirteen times. Four additional onshore-offshore hydrographic sections were completed north and south of the main section. Temperature, salinity, dissolved oxygen, and nutrient (N0₃, PO₄, and Si0₂) data were collected.

Two spin off eddies were observed at the Gulf Stream front at the shelfbreak. These eddies resulted in the upwelling of nutrient-enriched North Atlantic Central Water. A period of downwelling was observed between the two upwelling events. The cycling between upwelling and downwelling was relatively rapid. …

Civil Pageantry In The Reigns Of Elizabeth I And James I Of England, 1558-1625, Marjorie Ann Watkins

History Theses & Dissertations

Spectacle and pageantry played an important role in the monarchies of Elizabeth I and James I of England. Generally pageants served reciprocal purposes. It provided a way to let the realm view the state of the monarch's health and allowed the monarch to impress his subjects with royal grandeur. Additionally, it served as a vehicle for the manifestation of the public's desires concerning the direction which the country might move with the accession of a new monarch. Also, civic pageants provide the historian with an indication of popular like or dislike of a sovereign. In this thesis, a considerable amount …

Effectiveness Of Dental Plaque Charts In Motivating Adolescents Toward Improved Oral Hygiene And Oral Health, Lee Ann Branscome

Dental Hygiene Theses & Dissertations

A two group time series design was used to determine if exposure of adolescent clients to dental plaque charts during oral health instruction sessions is effective in motivating them to improve oral health over a six month period. Fifty-six adolescents who previously had received treatment at Old Dominion University Dental Hygiene Clinic consented to participate and were randomly assigned to a control or experimental group. Both groups of adolescents received identical oral health instructions from a research assistant; the experimental group's oral health instruction included an additional discussion about the dental plaque chart. The Patient Hygiene Performance Index and the …

Disidentification And Volitional Activation: New Approaches To The Treatment Of Cigarette Smoking, Paul Donley Lidstrom

Psychology Theses & Dissertations

Two previously untested humanistic treatment strategies adopted from Assagioli's psychosynthesis were evaluated for effectiveness in reducing cigarette smoking. Forty subjects were assigned to four treatment conditions arranged in a 0 X 3 (Treatment X Time) repeated measures factorial design. The four treatment groups consisted of a disidentification group, a volitional activation group, a combined treatment group, and a maximally effective placebo controls Smokers were seen in small groups for five 30 minute treatment sessions in the course of a week. All groups showed significant reductions from baseline smoking rates at 1-week and 6-week followups. At 1-week followup, the disidentification group …

A Nonlinear Hybrid Vortex Method For Wings Having Side-Edge Separations, Li-Chuan Chu

Mechanical & Aerospace Engineering Theses & Dissertations

A Nonlinear Hybrid-Vortex method (NHV-method) has been developed for predicting the aerodynamic characteristics of wings exhibiting side-edge separations. The present method is a coupline between vortex-panel and vortex-line methods. In the near-field calculations, vortex panels are used while in the far-field calculat1ons, vortex lines are used.

The wing and its free-shear layers are divided into planar quadrilateral panels having first-order vorticity distribution. The aerodynamic boundary conditions and continuity of the vorticity distributions are imposed at certain nodal points on the panels. An iterative technique is used to satisfy these conditions to obtain the vorticity distributions and the wake shape as …