Digital Commons Network^™

Alcoholism Subspecies And Their Relationship To Cigarette And Caffeine Consumption, John F. Crawley

Retrospective Theses and Dissertations

The relationships between types of alcoholism and cigarette and caffeine consumption were studies using the classification system of Reactive and Essential Alcoholism. The subjects were 155 Alcoholics Anonymous members. Information was collected on a number of population demographics including gender, religious preference, length of sobriety, educational level, and ethnic group membership. A correlational design was used and the data collection technique was a self-administered questionnaire. Hypotheses under study were: (1) Essential Alcoholics are more likely to be high frequency cigarette smokers than Reactive Alcoholics; (2) Essential Alcoholics are more likely to be high frequency caffeine consumers than Reactive Alcoholics. No …

Generating Multiple User Interfaces For Multiple Application Domains, Mahesh Hassomal Dodani

Retrospective Theses and Dissertations

This Ph.D. dissertation presents a classification scheme for User Interface Development Environments (UIDEs) based on the multiplicity of user interfaces and application domains that can be supported. The SISD, SIMD and MISD [S= Single, I= user Interface(s), M= Multiple, D= application Domain(s)] generator classes encompass most of the UIDEs described in the literature. A major goal of this research is to allow any user to develop a personalized interface for any interactive application, that is, the development of an MIMD UIDE.

Fundamental to the development of such a UIDE is the complete separation of the user interface component from the …

Object-Oriented Development Techniques For Real-Time Software Systems: A Case Study, Thomas S. Seldenright

Retrospective Theses and Dissertations

Great improvements have been made in computer technology over the last forty years. Today, systems are being developed to solve complex problems that were previously thought to be out of the reach of computer solutions. Unfortunately, advances in software development techniques have been outpaced by the advances made in hardware development techniques. In recent years, effort has been made to formalize software development techniques suitable for real-time systems. This paper presents an object-oriented approach to realtime systems development. The object-oriented development approach is applied to a real-time case study problem. The case study involves controlling the speed of a toy …

Saw Draw: An Interactive Graphical Layout System For Surface Acoustic Wave Devices, Jeffrey Blair Abbott

Retrospective Theses and Dissertations

This thesis introduces a solution to the problem of time and memory space requirements associated with the manipulation/creation of solid state device layout. Through the use of a hierarchical organization of data and a tailored indexing technique, the software described here, referred to as Saw Draw, is capable of manipulating huge amounts of data in a short period of time. This program was written for surface acoustic wave (SAW) device layout but works for a broad range of devices to include semiconductors, microstrip and others.

Due to the large number of details which must be stored for each SAW structure, …

Pathological Gambling: A Comprehensive Review, Victoria L. Crowder

Retrospective Theses and Dissertations

No abstract provided.

Operational Analysis Of Duties Of Florida Elementary School Secretary As Perceived By Secretaries, Principals And Teachers, James Lynwood Mosley

Retrospective Theses and Dissertations

Information was collected from principals, secretaries and teachers regarding their perceptions of the elementary schoo l secretary's role. Participants· were from three central Florida counties. The instrument for data collection was a survey form consisting of secretarial duties/responsibilities/attributes gleaned from a variety of sources. Participants' perceptions were tallied by means of a modified Li kert Scale. Tallied responses were analyzed statistically in comparison to six null hypotheses which were proposed. Three statistical procedures were employed in the data analysis. These procedures consisted of: (1) analysis of variance, (2) chi-square goodness of fit, and (3) Pearson Product Moment correlation. The .05 …

Hardware Algorithms For Data Compression, N. Ranganathan

Retrospective Theses and Dissertations

Data compression is the reduction of redundancy m data representation in order to decrease storage and communication costs. Data compression techniques have been used in practice primarily through software implementations which fail to meet the speed and performance requirements of current and future systems. This Ph.D. dissertation presents a set of hardware algorithms for compression and decompression techniques and the results of detailed simulations performed to quantify the effects of incorporating such hardware in various architectural environments. A new pipelined algorithm for data compression applicable to static binary encoding schemes is presented. A fast hardware algorithm for decompression that uses …

Dynamic Performance-Based Student Model For An Intelligent Simulation Training System, Jenifer M. Sargeant

Retrospective Theses and Dissertations

Student modeling has been the subject of research since the mid-1970's. A student model is an evolving description of what the student knows about the subject domain. Much of the previous research has concentrated on evaluating a student in performing cognitive tasks. The Intelligent Simulation Training System (ISTS) applies the techniques of Artificial Intelligence, Intelligent Tutoring Systems and Expert Systems to simulation-based training. The ISTS Student Model is unique in that it evaluates the student in performance-based tasks. It monitors and records the student's ability to maintain relationships between objects in space and time. The scope of this research was …

Anorexia Nervosa: Starvation By Choice A Review Of Etiology And Treatment, Joseph A. Weckerie

Retrospective Theses and Dissertations

No abstract provided.

Effects Of Informed Consent On Client Behaviors And Attitudes In A Pro-Life Pregnancy Counseling Center, Kathryn Lynn Mardirosian

Retrospective Theses and Dissertations

Although current professional and public opinion support the right of the client to make an informed decision about entering and continuing in a psychotherapy or counseling relationship, research studying the effects of informed consent on client behaviors and attitudes in the medical, research, and mental health fields has resulted in equivocal findings. This study looked at the effects of an informed consent procedure on client behaviors and attitudes in a pro-life pregnancy counseling center where the center's primary goal is to reduce the number of abortion decisions among clients. Thirty of the center's clients (Experimental Group) were given an Informed …

The Effects Of A Twelve-Week Cardiac Rehabilitation Program On Patients With Severe Left Ventricular Dysfunction As Evaluated By First-Pass Radionuclide Angiography, Ronald Lee Dudash

Retrospective Theses and Dissertations

No abstract provided.

The Time Slot Interchange In A Digital Central Office, Khalil George Al-Maalouf

Retrospective Theses and Dissertations

The invention of the telephone and the telegraph opened the door to worldwide corrmunications. Over the years, complex and versatile corrmunication systems have evolved involving many devices and technologies. Switching protocols between switching offices have been established in accordance with the nature of the machines and with the capabilities of the transmission medium and its environment. Switching systems are now stored program oriented, providing a more generalized and digitally oriented internal switching capability. This report will discuss the Time Slot Interchange ( TSI), an important component of the Digital Central Office (DCO). The operation of the send section and the …

Display Peripheral For A Flight Simulator Using A Three-Dimensional Computer-Controlled Motor Driven Model, Kenneth Randall Flowers

Retrospective Theses and Dissertations

The flight simulator display peripheral, described herein, provides the visual aide necessary for observation of effects due to operator responses for any aircraft simulator which prohibits the observers from occupying space within the cockpit of the simulator.

This display peripheral is provided by a three-dimensional, computer-controlled, motor-driven model which duplicates the angular movements generated by the aircraft simulator by moving a model aircraft mounted within a clear plastic ball.

The display utilizes a Motorola 68000 educational computer board to translate the three aircraft angles. pitch, yaw and roll received from the aircraft simulator via an RS-232C compatible serial asynchronous communication …

Numerical Analysis Of The Resonant States Of Quantum Wells And Superlattice Devices, Alan Gilbert Whittaker

Retrospective Theses and Dissertations

This thesis is concerned with the development of a numerical model to describe the resonant states associated with quantum well and superlattice devices. A numerical method is described where the time-independent Schrodinger equation is represented as a series of simultaneous algebraic equations using the finite-element method. The eigenvalues for these equations are then found using a Sturm sequence, and the eigenfunctions subsequently calculated using a reverse iteration method containing orthogonality constraints. Simulations of specific devices are presented and compared with experimental results and good correlation is observed.

Ethical Decisions: Willingness To Apply Understood Ethical Principles, Margaret A. Wilkins

Retrospective Theses and Dissertations

No abstract provided.

The Impact On Competency Acquisition, Development, And Performance Of Intern Principals In Two Florida School Districts Using The Preparing New Principals Program, Paul Van Mitchell

Retrospective Theses and Dissertations

No abstract provided.

Differential Employee Performance: A Behavioral Addition To An Attitudinal Model Of Turnover, Thomas E. Powell

Retrospective Theses and Dissertations

No abstract provided.

Three-Level Block Truncation Coding, Deborah Ann Lee

Retrospective Theses and Dissertations

Block Truncation Coding (BTC) techniques, to date, utilize a two-level image block code. This thesis presents and studies a new BTC method employing a three-level image coding technique. This new method is applied to actual image frames and compared with other well-known block truncation coding techniques.

The method separates an image into disjoint, rectangular regions of fixed size and finds the highest and lowest pixel values of each. Using these values, the image block pixel value range is calculated and divided into three equal sections. The individual image block pixels are then quantized according to the region into which their …

Using Combined Integration Algorithms For Real-Time Simulation Of Continuous Systems, Larry Keith Harbor

Retrospective Theses and Dissertations

At many American colleges and universities, efforts to enhance the retention of a diverse group of students have become a priority. This study represents part of this effort at the University of Central Florida, a large public suburban state university in the South. Specifically, this investigation evaluated Pegasus '95 and the Academic Mentoring Program offered in the Summer and Fall Semesters of 1995 to specially-admitted students who fell short of regular admissions requirements. During the summer, Pegasus '95 provided testing, orientation, guided course work, study skills workshops, and mentoring, both individually and in the context of cohesive socialization groups of …

Analysis Of Phase Noise In Phase Lock Loop, Diane Marie Pavik

Retrospective Theses and Dissertations

This research report presents an introduction into phase lock loops (PLL) with a major emphasis on calculating phase noise in frequency synthesizers. A PLL model that incorporates the major sources of noise is presented for the purpose of design analysis. The model can be used to analyze second and fifth order PLLs which allows the accurate calculation of phase noise as a function of independent variable design parameters. The stability of PLLs is also analyzed to show the effects of a marginally stable system on the resultant phase noise. Developing an accurate PLL model which accounts for the major sources …

Metalinguistic Development Paralleled With Piagetian Stages, Joanne Y. Mccall

Retrospective Theses and Dissertations

No abstract provided.

Efficient Algorithms For The Fixed Charge Problem, Ahmad Abdulah Moreb

Retrospective Theses and Dissertations

The main thrust of this research is to develop four solution procedures for the Fixed Charge Problem. All are based on approximating the fixed charge component by strictly polygonal linear components. The first procedure uses the functions technique to approximate the fixed charge; then linear programming with the restricted-basisentry technique is used to arrive at the final solution. Although this method starts with an approximated version of the fixed charge component, it arrives at an exact value to the objective function without the need for re-evaluating the objective function. The other three solution procedures are based on approximating the fixed …

Adolescent Clients' Understanding Of And Demands For Confidentiality, Teresa F. Turner

Retrospective Theses and Dissertations

This study assessed the adolescent client's perceptions of the limits of confidentiality as well as their privacy demands.

Thirty adolescent subjects undergoing treatment for substance abuse were asked to respond to questionnaires consisting of 10 scenarios reflecting confidentiality issues. Subjects responded to each scenario by choosing outcomes to represent what they believed the counselor should do and what they would prefer the counselor to do. Three parallel forms of an original research questionnaire were used to represent the following treatment modalities: individual therapy, group therapy, and family therapy.

The results supported the hypotheses that minor clients have a general understanding …

Optical Interferometric Formation Of Phased Array Antenna Footprint/, John E. Sherwood

Retrospective Theses and Dissertations

A 40 dB gain RF Low Noise Amplifier (LNA) matched to a photodiode input is designed using TOUCHSTONE (S-parameter based CAD software), built, and tested. The RF LNA formed the detector of a Mach-Zehnder interferometer constructed with single mode fiber, coupler, Gradient Index Rod Acousto-optic modulator (ADM) . (GRINROD) lenses, and an The ADM is used to frequency shift the optical frequency by 125 MHz, and the motion of a GRINROD lens is used to produce an optical phase shift that is recovered at the detector as an electrical phase shift by using heterodyne detection . Finite Hankel transforms are …

Research And Applications Of Expert Systems In Military Training, Philip Irwin Green

Retrospective Theses and Dissertations

This report surveys recent research and applications of Expert Systems in the military training and simulation community. The report reviews twenty-one recent papers covering this subject. Each paper reviewed has been assigned a class which establishes the phase of development of the system or activities described. For each paper the abstract is given, followed by comments which summarize in more detail significant parameters of the activities reported. This is then followed by a listing of the specific Expert System "areas of interest" described in the paper.

A Study Of The Reaction Kinetics For The Thermal Oxidation Of Dilute N-Heptane Vapors In A Plug Flow Reactor, Steven Hunter Ramsey

Retrospective Theses and Dissertations

During August through October, 1986, experiments were conducted with the aim of devel oping kinetic relationships for the thermal oxi dation of dilute n-Heptane vapors in air using a Lindberg tube furnace reactor. This project was designed to be the first step in the ultimate goal of research ing the effe cts upon the combustion of dilute organic vapors when certain chemicals are added to the combustion stream. These chemicals are postulated to form free radicals and thus enhance the oxidation of organ i cs . Comparison of the kinetics before and after the addition of t he free radical …

Uniformity Correction For A Scanned Long Wavelength Infrared Focal Plane Array, George C. Heinold

Retrospective Theses and Dissertations

This paper presents an alternative approach in providing uniformity correction for an infrared focal plane array by utilizing analog MOSFET circuitry. This technology is compatible with modern VLSI production and is capable of enhanced operation at cryogenic temperatures. The method presented here is a potential contribution to the growing list of special analog circuit configurations which may be incorporated for on-chip signal processing, inside the cryogenic dewar assembly. Electronic packaging of current thermal systems could be significantly reduced in size and weight by trading some of the cumbersome digital algorithms and complex post-processing circuitry for implementation in VLSI form.

The …

Gapp Instruction Simulator, Ronald P. Bauman

Retrospective Theses and Dissertations

A need was recognized for the development of a hardware independent simulator for the Geometric Arithmetic Parallel Processor, or GAPP. This simulator would allow the user to test algorithms targeted to GAPP systems using readily available personnel computers. The development of the simulation, a GAPP Instruction Simulator, or GIS, is the basis of this research report. This report includes a discussion of earlier parallel processors of similar type to the GAPP, a discussion of the GAPP's operation and instructions, and illustrations of GAPP applications. The report focuses on the GAPP Instruction Simulator with a discussion of its operation and a …

American Opinion Of The Soviet/Vatican Struggle 1917-1933, Jeffrey P. Begeal

Retrospective Theses and Dissertations

No abstract provided.

The Feasibility Of Computerized Cognitive Testing As A Surrogate Measure For Assessment Center Performance, Leilani M. De Saram

Retrospective Theses and Dissertations

The use of microcomputerized cognitive testing of personnel has thus far been limited to military and environmental stressor applications. The investigation of such testing as a substitute for assessment center performance represents a novel application of this technology. An examination of the relationship between performance on a cognitive test battery and assessment center performance was conducted.

A battery of selected microcomputerized tests measuring cognitive constructs was administered to assessment center candidates in law enforcement occupations. Contrary to expectations, the computerized cognitive measurements did not exhibit significant correlations with assessment center performance measures. It was speculated that the two measures assessed …