Digital Commons Network^™

Epsilon Precedence Grammars And Languages, Masoud T. Milani

Retrospective Theses and Dissertations

The classes of simple and weak precedence grammars are generalized to include ε-rules (productions with the empty right parts). The descriptive power of epsilon simple precedence (ESP) grammars increases directly with the number of ε-rules permitted; the class of ESP grammars with no ε-rules, ESP₀, is identical to the class of simple precedence grammars; ESP grammars with at most one ε-rule, ESP₁, define a class of languages which properly includes the class of ESP₀ languages, but is itself properly included in the class of deterministic, context-free languages. In general, ESP grammars having at most i …

Postpartum Job Involvement, Rosemary D. Garris

Retrospective Theses and Dissertations

The effect of mothers' employment on their children has been investigated repeatedly; however, there is little research on how motherhood affects womens' employment attitudes. The research being reported here addresses this question. Subjects consisted of 126 working pregnant women and a comparable group of 45 working non-pregnant women who completed four questionnaires soliciting measures of the following attitudes: job involvement, home role attitude, employment role attitude, and interaction strain. Modest support was found for the prediction that giving birth would affect mothers' attitudes. Job involvement was found to decline, and home role attitude was found to be less favorable after …

The Effect Of Food On Reproduction In The Sailfin Molly, Poecilia Iatipinna (Poeciliidae, Rebecca B. Smith

Retrospective Theses and Dissertations

Sailfin molly populations often experience a midsummer slump in reproduction, and it has been suggested that this slump is caused by food shortage. A food supplementation experiment on a natural population of mollies was done in 1983. Excess food did not directly affect the fecundity of females in the field. A laboratory experiment was designed to determine the food level on reproduction in females. Ration had the greatest effect on somatic condition and growth, indirectly influencing fecundity. Two explanations for this strategy are suggested. A significant difference in brood size and size of young was observed between the field and …

Individual Differences In Training Performance: The Derivation Of A Prediction Model, Brenda J. Hoskin

Retrospective Theses and Dissertations

This research examines the use of non-cognitive personality measures as supplements to traditional cognitive ability measures for predicting training performance. The Hogan Personality Inventory (HPI) significantly predicted an overall performance measure (R² = .17) for Navy BE&E Students (N = 155). However, when applied as a supplemental predictor composite to the military cognitive measure (ASVAB), the resulting increase in R² (.04) failed to attain significance, F(6, 144) = 2.17, p > .05). In further analyses, several HPI and ASVAB scales combined to significantly predict selected performance criteria. The ASVAB remained as the primary source of information. It is quite …

A Study Of Merit Pay Factors As Perceived By Members Of The Florida Teaching Profession-National Education Association, Susan Crowe Burns

Retrospective Theses and Dissertations

This study was designed to discover which merit pay evaluation and implementation factors were considered important by members of the Florida Teaching Profession - National Education Association (FTP-NEA). Comparisons were made of opinions within various subgroups (district size, position within organization, sex, race, age, years teaching, highest degree earned, assignment, secondary assignment).

The sample included the State Board of Directors, the Board of Directors of the United Faculty of Florida CUFF-university personnel), and FTP-NEA members in two-thirds of the local affiliates. All districts with support personnel groups were included. The questionnaire was comprised of merit pay factors which were cited …

Interactive Micro-Computer Software For The Production Of Engineering Drawings, Brian R. Garvey

Retrospective Theses and Dissertations

This project has developed a microcomputer-based interactive Graphics Software System for the production of engineering drawings. The drawings, stored in a digital format, can be recalled and updated much faster than by using conventional drawing methods. This allows for increased production and a standardized drawing format.

The system was designed to be easy to use so that with little training, a user can create, edit, plot, and save drawings for later retrieval. In addition, an open architecture was used in the design of the drawing database and program command structure so that the system can be easily expanded upon as …

Editor Design In The Context Of Control System Simulation, Leon Fadden

Retrospective Theses and Dissertations

Advances in microcomputer display devices and support software during the past decade have made the microcomputer an increasingly popular vehicle for technical education. This is especially apparent in the area of simulation. The pedagog can provide the student of control theory not merely with the block diagrams and differential algebra but with high resolution color graphic animations supported by mathematical models whose parameters are easily changed by some editor facility. This mode of control system design and behavior study is both faster and more enjoyable for the student, providing greater continuity, concentration, and learning efficiency.

This paper describes the simulation …

Sexual Activity In Psychotherapy: A Comprehensive Analysis, Steven B. Bisbing

Retrospective Theses and Dissertations

No abstract provided.

Separation Plane Priority In Computer Image Generation, Keith A. Stump

Retrospective Theses and Dissertations

Flight simulators are devices in which air crews can be trained without the use of actual aircraft. Potentially dangerous maneuvers, such as air-to-air refueling, and destructive exercises, such as evasive action from weaponry or aerial dogfights, can be practiced repeatedly with no risk to pilot or crew. Flight simulators are cost effective since the fuel costs associated with training pilots in actual aircraft can be excessive. Flight simulators offer an alternate training method with reduced cost. The task of a visual flight simulator is to present the trainee with scenes representative of those that would be seen if the actual …

Setting Time Standards In A Service Environment: A Case Study, Nael H. Hasweh

Retrospective Theses and Dissertations

One of the most important and costliest resources a hospital has are its personnel and their productivity. Almost invariably, they offer the greatest opportunities for cost containment.

This report is the result of a study conducted in the maintenance department at a local hospital. The objective of the study was to design and implement a work measurement system that is capable of producing accurate time standards. Comparison of actual times reported by employees with these standards would then be used to produce accurate productivity measures.

The proposed system is explained in detail, and the results obtained by implementing such a …

Non-Linear Plane Stress Analysis Using The Finite Element Method, Habib Amirzadeh

Retrospective Theses and Dissertations

Purpose of the Study

The objective of this report is to check the Neuber and Linear rules, and to find the percent differences in comparison with the plane stress and plane strain solution using the non-linear finite element method. All the data are based on the maximum stress concentration where the crack forms and the material behaves non-linearly. This particular problem has been solved using ANSYS, which is a general purpose finite element program.

Life Prediction

Another purpose, which is not the main subject of this report, is to use the result from Neuber and Linear rules to predict the …

The Effect Of Sewage Effluent Removal On The Water Quality Of Lake Howell, Florida, Patricia L. Smith

Retrospective Theses and Dissertations

In April, 1983, sewage effluent discharge from the Maitland and Winter Park sewage treatment plants was diverted from Lake Howell to the Iron Bridge Regional Sewage Treatment Plant. The sewage treatment plants of the cities of Winter Park and Maitland had been discharging into Lake Howell since 1927 and 1962, respectively. These point sources had contributed 95% of the total phosphorus and 69% of the total nitrogen budgets for Lake Howell. Physico-chemical parameters were monitored monthly for two years chemical parameters were monitored monthly for two years from January, 1983 through December, 1984. Annual mean values fro chlorophyll_a, …

Direct Sequence Spread Spectrum Acquisition Design, John C. Fakatselis

Retrospective Theses and Dissertations

Spread spectrum communication techniques are utilized to provide transmission of signals which have anti-jamming properties, a low probability of being intercepted, and can support a multiple-access system by servicing simultaneously a number of channels. This thesis concentrates on the receiver acquisition problem of a transmitted signal which is the output of a spread spectrum communication system. The acquisition requirements of a spread spectrum system and also the general approaches to the problem of “active and passive correlation” are discussed. A unique general purpose all-digital acquisition hardware design is developed and described to the schematic level of detail, where specific parts …

A Multidimensional Analysis Of Stress Among Law Enforcement Officers And Insurance Underwriters, Susan K. Daniel

Retrospective Theses and Dissertations

This study compared stress levels between law enforcement officers and the civilian population as measured by systolic blood pressure, the State-Trait Personality Inventory, and the Anger Reaction Scale. The relationship between systolic blood pressure and the self report instruments was also investigated. Thirty Deputy Sheriffs from the street patrol division of the Sheriff's Department served as the law enforcement group and 20 underwriters for the Hartford Insurance Company were the civilian or control group. the Deputy Sheriffs had significantly higher average systolic blood pressure than the Hartford employees with the effects of covariates removed. However, the Hartford employees scored significantly …

Florida Macrolichens As Potential Bioindicators Of Environmental Quality: A Baseline Study, Harry V. Neal

Retrospective Theses and Dissertations

Lichens have been used extensively and with considerable success as bioindicators of atmospheric pollution in North America and Europe for more than thirty years. Little research has followed in tropical and subtropical regions where population growth is rapid and environmental pressures unprecedented. However, taxa used as bioindicators in other studies and/or taxa having this potential, occur naturally in Central Florida. A new potential major source of pollution, the coal-fired Curtis H. Stanton Energy Center, is about to begin operation providing the opportunity to determine the extent of impact. Therefore, lichen monitoring sites have been established and the collection of baseline …

Cultural History And Fiction Marjorie Kinnan Rawlings And Ellen Glasgow, Betty N. Mcdonell

Retrospective Theses and Dissertations

No abstract provided.

Timothy Hatherly And The Plymouth Colony Pilgrims, Steven R. Valdespino

Retrospective Theses and Dissertations

No abstract provided.

Comparable Worth: Gender Bias In Salary Administration, Delora Mcdaniel

Retrospective Theses and Dissertations

Comparable worth, an idea that is playing an increasingly important role in the wage and compensation issues of the 1980s, is examined in a controlled classroom setting. Salary as a function of rater gender and job stereotyping (as measured on a ranked order) was examined using undergraduate student subjects. Seven position descriptions from a savings and loan association were subjectively evaluated. The subjects assigned salaries, rank ordered the positions on a male to female (male=l, female=?) continuum and completed an Attitude toward Women Scale (AWS). Modest support was found for the hypothesis that salary would be a function of rater …

Superior-Subordinate Perceptional Congruence Of Promotion Criteria Importance And Its Relationship To Job Satisfaction, Stacie L. Clark

Retrospective Theses and Dissertations

The degree of perceptual congruence of the importance of promotion criteria to superiors and subordinates was investigated. The relationship of congruence to job satisfaction was also evaluated. Fifty-two student workers and their superiors participated in the study. Perception of promotion criteria importance was measured through the rating of a list of promotion criteria using a seven point scale. An average discrepancy score of 7.925 was obtained between superiors' and subordinates' ratings indicating a significant degree of discrepancy, t(50) = 25.04, p< .001. Job satisfaction was measured using the Job Descriptive Index (JDI) and was correlated with the discrepancy scores. Perceptual congruence of promotion criteria was found to be significantly related to subordinates' satisfaction with supervision on the job, r = -.276, p < .05, and satisfaction with present pay, r = -.299, p < .05.

College Recruitment: Compensation Preferences Of Seniors At The University Of Central Florida, Penny H. Faber

Retrospective Theses and Dissertations

The purpose of this study was to determine the compensation preferences of seniors at the University of Central Florida. The sample consisted of 86 females and 77 males currently registered as seniors at the university. Subjects were mailed a questionnaire and asked to rank order 11 compensation options and answer nine demographic questions. One-way and repeated measures analyses of variance were used to compute significant differences, 10 were found between groups in compensation preferences as related to the demographic variables. For example, those students with children had significant differences in preferences for four of the options. Significant differences in rankings …

The Relative Efficiency Of Computer Controlled, Adaptive And Learner Centered Training On Transfer Of Training In A Computer Simulation Task, Lois-Ann Kuntz

Retrospective Theses and Dissertations

There is a need for effective cost efficient training programs. Individual differences have been shown to be the most important variable in many training programs and they should be paid special attention in the design of training programs. Compared in this experiment is computer-controlled (lockstep) training, adaptive training, and learner-centered training. Learner-centered and adaptive training are geared to the individual. Instead of lockstep training, learner-centered training allows the trainee to determine the amount or sequence of training at different levels of proficiency. Adaptive training is training based on the participant's performance. As the participant's performance improves he or she is …

Marital Satisfaction As A Function Of Gender, Own Rationality And Spouse's Rationality, Gabrielle T. Vincent

Retrospective Theses and Dissertations

No abstract provided.

An Investigation Of Career Development By Community College And University Women : Importance Of Contributors To Advancement Into Higher Education Administration, Lynda A. Kuyper

Retrospective Theses and Dissertations

Surveys of women in higher education administrative positions that identified factors which may contribute to career development have been conducted. However, the literature revealed little information regarding the importance placed on those factors by women in higher education administrative positions. The purpose of this study was to determine the importance of selected contributors to career development of women in higher education administration. Data were gathered by a mailed questionnaire to a sample of women administrators employed in Florida state supported community colleges and universities. The 343 useable returned questionnaires represented a 65.5% response rate and 51.3% of the total population. …

A Microsequenced Prolog Inference Engine, Jeffrey J. Ferguson

Retrospective Theses and Dissertations

Prolog is a symbolic logic language presently emerging among numerous expert system designs. The architecture for a microsequenced Prolog machine (UPM) capable of providing the basic language features to a host computer is proposed. The Prolog machine functions are portioned into three processor components – Input/Output, Memory, and Central (CPU), where the design of the Central Processor is emphasized. Detailed discussion outlines the CPU facilities used to implement the forward-chaining and backtracking functions for the UPM. The UPM features are compared to the PLM-1, a microsequenced Prolog inference engine under development at University of California, Berkley. An emulation of the …

An Experimental Study Of A Single-Phase Natural Convection In A Cylindrical, Vertical Channel, S. Ali A. Hashemi

Retrospective Theses and Dissertations

Presented in this paper is the first known experimental assessment of a single-phase natural convection in a cylindrical, vertical channel subjected to non-uniform or uniform heat flux. This work was conducted at the University of Central Florida in the College of Engineering.

The results of this experimental study were compared with theory. The experimental values of Nusselt numbers (Nu = hD/K) in the entrance and fully-developed regions were somewhat lower and higher, respectively, when compared with theory.

The Secant-Corrector Spectral Iterative Method For Analyzing Scattering From Planar Periodic Surfaces, Robert Middelveen

Retrospective Theses and Dissertations

The secant method is applied to an iterative algorithm of electromagnetic scattering from planar surfaces with periodic structure. The theory of convergent solutions for iterative techniques is discussed and examined. The Secant method is applied to the spectral iteration approach to accelerate and assure convergence of the basic iterative scheme. The derivation of the method as applied to surfaces containing parallel thin wire gratings is presented, and the conditions for achieving convergence are explored. This new method is also applied to gratings made of coated wires. The reflection characteristics of the grating as a function of wire spacing, wire conductivity, …

A Pool Boiling Map: Water On A Horizontal Surface At Atmospheric Pressure, O. Burr. Osborn

Retrospective Theses and Dissertations

The purpose of this study was to develop a boiling map for liquid water at an atmospheric pressure. The map indicates the type of pool boiling phenomenon will initially occur in terms of the bulk temperature of the liquid and the interfacial contact temperature. The geometry studied was that of a flat horizontal plate with boiling incipient from the upward facing surface.

Previous analytical and experimental studies have been conducted concerning pool boiling. Several of these studies are summarized in this thesis and it is seen that there are gaps and limitations in the existing state of knowledge. Therefore, further …

Initiation Of Speech Acts Among Older Brain Damaged Adults, Theresa A. Williams

Retrospective Theses and Dissertations

No abstract provided.

A One Step Collision Detection Method For Computer Graphics Programs, Gregory T. Eichner

Retrospective Theses and Dissertations

The topic of this thesis is a collection detection algorithm for use in computer programs dealing in three dimensional graphics. Collision detection is usually accomplished by breaking the movement into small steps and checking if a collision has occurred at each of these discrete steps. This method is a very time-intensive way to detect for collisions and therefore, inefficient for a system which typically moves in large increments. For this kind of system, a method could be developed which checks once for collisions without dividing the move into multiple small increments. The subject of this paper is an algorithm, developed …

Cost Effective Design Of The Activated Sludge Wastewater Treatment System, Robert P. Huguenard

Retrospective Theses and Dissertations

In current design practice the components of the complete mix activated sludge system are designed as individual units with little or no appreciation for the process interactions which occur between system components. To achieve acceptable process efficiency and to realize cost effectiveness a unified design approach is necessary. This research effort was initiated to define the characteristics of the economic optimum complete mix activated sludge configuration while considering system interactions.

A computer program was developed for the completion of the process design and the economic analysis of the aeration basins, the settling basins, and the return sludge pumping facilities for …