4,536 Matching Results

Search Results

Multiresolutional/Fractal Compression of Still and Moving Pictures

Description: The scope of the present dissertation is a deep lossy compression of still and moving grayscale pictures while maintaining their fidelity, with a specific goal of creating a working prototype of a software system for use in low bandwidth transmission of still satellite imagery and weather briefings with the best preservation of features considered important by the end user.
Date: December 1993
Creator: Kiselyov, Oleg E.
Partner: UNT Libraries

Eutrophication Monitoring and Prediction

Description: Changes in trophic status are often related to increases or decreases in the allocthonous inputs of nutrients from changes in land use and management practices. Lake and reservoir managers are continually faced with the questions of what to monitor, how to monitor it, and how much change is necessary to be considered significant. This study is a compilation of four manuscripts, addressing one of these questions, using data from six reservoirs in Texas.
Date: December 1993
Creator: Cairns, Stefan H., 1949-
Partner: UNT Libraries

A Comparison of the Relative Effectiveness of Mainstream Versus Pullout Treatment Programs in Addressing the Needs of At-Risk Students

Description: The purpose of the study was to compare the relative benefits of treating at-risk students, those considered to be potential dropouts, by separating them into special classes at a separate facility—a pullout program—versus having them remain in regular classes with periodic supplemental counseling based upon individual needs—a mainstream program. To carry out the purpose of the study, students enrolled in the two types of treatment programs were compared in respect to retention in school, attendance, academic achievement based upon pretest and posttest scores, report card grades, and attitude toward school.
Date: December 1993
Creator: Harrison, Robert S. (Robert Seidel)
Partner: UNT Libraries

Modeling State Repression in Argentina and Chile: A Time Series Analysis

Description: This study is an attempt to contribute to the emerging theoretical literature on state repression. A time-series model was developed to test the hypothesis that state violence in Argentina and Chile is largely a function of four internal political factors and their interactions: 1) the inertial influence of past restrictive policies on the formulation of current policies, 2) the annual incidence of political protest demonstrations, 3) the perceived effectiveness of repressive measures on unrest, 4) and the institutionalization of military rule.
Date: December 1993
Creator: King, John Christopher
Partner: UNT Libraries

State Participation in Funding Capital Projects and Improvements in Texas Public Schools

Description: The impact of four basic capital project funding models for state participation was determined for the school districts in Texas. A review of the historical background for funding of capital projects and improvements by states was followed by a review of the historical background of state support for funding capital projects in the State of Texas. Additionally, the current funding models and methods of determining need were reviewed for all of the states. This historical review revealed that facility funding, like aid for maintenance and operation, has evolved with all the states at different stages.
Date: December 1993
Creator: Hawkins, Jimmy R. (Jimmy Ray)
Partner: UNT Libraries

From Knowing Content to Constructing Knowledge: A Trend Analysis of Secondary Science Education, 1953-1992

Description: The purpose of this study was to identify and analyze secondary science education curriculum and instruction trends for the period 1953-1992 by using the technique of content analysis to examine a representative portion of journal articles and policy statements in secondary science education. Two major science publications, The Science Teacher and Science Education, were selected for analysis.
Date: December 1993
Creator: Kelly, Janet Arlene
Partner: UNT Libraries

A Role Modification Model: the Foreign Policy of the Palestine Liberation Organization, 1964-1981

Description: This study is a Comparative Foreign Policy (CFP) analysis of the Palestine Liberation Organization's (PLO) foreign policy behavior from 1964 through 1981. This study develops and tests a role modification model that accounts for evolutionary changes in foreign policy behavior. One of the major premises of this research is that what often appears as dramatic restructuring in foreign policy is actually the culmination of a series of modifications that transpired over an extended period of time. The model relies on a total of six independent variables as determinants of PLO foreign policy output representing multiple levels of analysis. There are a total of 12 dependent variables expressed as either foreign policy tactical roles or strategic goals. Relying on content analysis of relevant PLO documents, the role modification model demonstrates that the foreign policy output of the PLO experienced a gradual, over time change in both the means and ends of its foreign policy. The model also identifies the conditions under which any one of the independent variables is able to exclusively determine foreign policy output and which roles one can reasonably expect the PLO to exercise under a given circumstance.
Date: December 1993
Creator: DiGeorgio-Lutz, JoAnn A. (JoAnn Angela)
Partner: UNT Libraries

Young Children's Construction of Physical Knowledge on Swings in the Outdoor Play Environment

Description: This investigation examined the development of young children's behaviors on swings in the outdoor play environment and their emerging understanding of the physics principles associated with those behaviors. The children's language interactions were also examined in an effort to determine the relationship between language and cognitive development in their construction of physical knowledge. The procedures involved observing the children's behaviors and collecting samples of their spontaneous language interactions during their swinging activities. Informal interviews were also conducted with individual and groups of children. The findings indicate that young children's swinging behaviors develop in eight hierarchical stages. As these behaviors develop, children experiment with the physics principles of balance, gravity, force, resistance, and resonance. Children's swinging behaviors develop in a social context. Many early behaviors are acquired through observing and modeling other children. Language provides the medium for more-experienced peers to assist novice swingers through encouragement and direct instruction. The stage development of swinging behaviors is compared to Cratty's Theory of Perceptual-Motor Development and Harrow's Taxonomy of the Psychomotor Domain. Children's cognitive processing and language interactions are discussed in the context of Piagetian and Vygotskian theories of development. Implications for instruction and suggestions for further research are discussed.
Date: December 1993
Creator: Fox, Jill Englebright
Partner: UNT Libraries

Functional Properties and Organization of Primary Somatosensory Cortex

Description: The physiological characteristics and organization of cat primary somatosensory cortex (SI) were studied in electrophysiological and anatomical experiments. In single cell recording experiments, quantitatively controlled mechanical stimuli were used to examine the responses of SI cortical neurons to the velocity component of skin or hair displacement. The firing frequency of most rapidly adapting neurons increased as stimulus velocity was increased. Rapidly adapting neurons were classified based on their response patterns to constant-velocity ramp stimuli. Neurons in these classes differed significantly in sensitivity to stimulus velocity and amplitude, adaptation rate, and spontaneous firing rate. The results suggest that frequency coding of stimulus displacement velocity could be performed by individual SI rapidly adapting neurons, and that the classes of rapidly adapting neurons may play different roles in sensation of tactile stimuli. Tract-tracing experiments were used to investigate the ipsilateral corticocortical connections of areas 3b and 2 in SI. Different patterns of connections were found for these areas: area 2 projects to areas 3b, 1, 3a, 5a, 4 and second somatosensory cortex (SII), and area 3b projects to areas 2, 1, 3a and SII. To further compare the organization of these areas, the thalamic input to the forepaw representation within each area was studied. The forepaw region in area 3b receives thalamic input exclusively from ventroposteriopr lateral nucleus (VPL), while area 2 receives input from VPL, medial division of the posterior complex (PoM), and lateral posterior nucleus (LP). These results suggest that area 2 lies at a higher position in the hierarchy of somatosensory information flow.
Date: December 1993
Creator: Esteky, Hossein
Partner: UNT Libraries

An Investigation of Heart Response During Trumpet Playing

Description: The purpose of this study was to investigate the effects of trumpet playing upon the heart. A Holter monitor was used to record electrocardiograms (ECGs) to examine the heart's response during musical performances and practice sessions.
Date: December 1993
Creator: Hunsaker, Leigh Anne
Partner: UNT Libraries

A Criterion-Referenced Analysis of Form F of the Standardized Bible Content Tests of the American Association of Bible Colleges

Description: The purposes of this study were to: (a) analyze subjects' responses from Form F of the Standardized Bible Content Tests of the American Association of Bible Colleges by factor analysis and the Rasch measurement model and (b) determine dimensionality of Form F, determine the correlation to the Literal, Anti-literal, Mythological Scales, and determine the best criterion-referenced test design of Form F using Rasch measurement procedures. Volunteers from a purposefully selected sample of nine colleges from the American Association of Bible Colleges participated in the study. One research instrument with five demographic questions, the Standardized Bible Content Test Form F, and the Literal, Anti-literal, and Mythological Scales was administered to 179 volunteer graduating seniors. Frequencies and percentages of responses were computed for the demographic questions. Mean scores on the Literal, Anti-literal, and Mythological Scales were computed for gender and religious affiliation. Principal components analysis of Form F with varimax rotation and list-wise deletion of missing data was used to assess the dimensionality of Form F. Correlations between scores on the Literal, Anti-literal and Mythological Scales and scores from the principal components analysis of Form F were computed. Dunn's multiple comparison procedures were used to test for statistical significance. Rasch-Model measurement analysis of the scales extracted by principal components analysis was accomplished to obtain suggested target description, test design, variable definition, and item calibration.
Date: December 1993
Creator: Gaede, Charles S. (Charles Samuel)
Partner: UNT Libraries

Body Image as Mediated by Age, Sex, and Relationship Status

Description: Traditionally, body image research has focused on young women. However, there are indications of cultural shifts which extend physical appearance pressures to both men and women, as well as to middle-aged and older adults. Two hundred and ten subjects were administered objective body image measures including the Figure Rating Scale, the Body Shape Questionnaire, and the Multidimensional Body-Self Relations Questionnaire, as well as projective measures including the Holtzman Inkblot Technique and the Draw-A-Person. The NEO-Five Factor Inventory and the Social Anxiety Subscale were also used to explore variables which might covary with body image. A 3 X 2 X 2 Multivariate Analysis of Covariance (MANCOVA) was utilized with social desirability as the covariate.
Date: December 1993
Creator: Cooper, Caren C. (Caren Connie)
Partner: UNT Libraries

An Investigation of the Perception of Delivered Quality at Different Levels of Organizational Hierarchy in Services

Description: The overall purpose of this research was to add to existing theory of quality pertaining to the service provider's perception of quality. Quality in the service industry is difficult to assess because of the intangible, heterogeneous and labor intensive nature of services. In addition, personnel have varying perceptions of delivered quality based on their position within the organizational hierarchy. This study enhanced the Service Quality Model developed by Zeithaml, Berry, and Parasuraman (1988). An additional gap ("gap 6") was hypothesized and investigated. This gap describes the differences in perceived delivered quality by employees at different organizational levels (e.g., managerial, supervisory, and non-management employees) across different market segments. The researcher proposed that "gap 6" has a significant impact on total perceived delivered quality. The survey instrument addressed five dimensions of overall quality: tangibles, reliability, responsiveness, assurance, and empathy. The survey was administered to employees from hotels representing three market segments located within the same metropolitan area and managed by the same company. A 3 X 3 factorial design was used with three organizational levels (managers, supervisors, and hourly employees) and three lodging market segments (luxury, business-traveller, and long-term/suite). Data analyses included descriptive statistics, analysis of variance (ANOVA), and Tukey's Multiple Comparison Test.
Date: December 1993
Creator: Getty, Juliet M. (Juliet Margolin)
Partner: UNT Libraries

Dawn in the Empty House

Description: The preface to this collection of poems, "Memory and The Myth of Lost Truth," explores the physical and metaphysical roles memory plays within poetry. It examines the melancholy frequently birthed from a particular kind poetic self-inquiry, or, more specifically, the feelings associated with recognizing the self's inability to re-inhabit the emotional experience of past events, and how poetry can redeem, via engaging our symbolic intuition, the faultiness of remembered history. Dawn in the Empty House is a collection of poems about the implications of human relationships, self-deception, and memory as a tool for self-discovery.
Date: December 2008
Creator: Campbell, John
Partner: UNT Libraries

Tinder for the Bathhouses

Description: In the preface to this collection, "Poetry and History: Finding 'What Will Suffice,'" I show how Czeslaw Milosz's "Dedication" and Jorie Graham's "Guantánamo" embody the virtues of philosophical meditation and the moral imagination to create a unique poetry of witness. These poems also provide American poets with an example of how they can regain the trust of an apathetic general reading audience. Tinder for the Bathhouses is a collection of poems in which I use the moral imagination to indirectly bear witness to events as far ranging as the Holocaust and the Iraq War. Using the family as a foundation, I show how historical narratives can provide a poet with the tools to think about larger metaphysical questions that poetry can raise, such as the nature of beauty and the purpose of art.
Date: December 2008
Creator: Bredthauer, Bredt
Partner: UNT Libraries

Where My Own Grave Is

Description: The preface to this collection, "Against Expectation: The Lyric Narrative," highlights the ways James Wright, Stephen Dunn, and C.K. Williams use narrative to strengthen their poems. Where My Own Grave Is is a collection of poems that uses narrative to engage our historical fascination with death.
Date: December 2008
Creator: Collier, Jordan Taylor
Partner: UNT Libraries

John Christopher Stevens: a Study of his Presidential Administration at Abilene Christian University Abilene, Texas, 1969-1981

Description: The purpose of this study is to examine historically the presidential administration of John Christopher Stevens at Abilene Christian University from 1969 to 1981. During this time the institution grew in enrollment, faculty, facilities, endowment, and quality of educational opportunity. Limited to selected experiences and accomplishments, this dissertation examines Stevens' personal and administrative characteristics through interviews with him and those who worked with him. Materials were also used from Stevens' Presidential Archives in the Callie Faye Milliken Special Collections of the Herman and Margaret Brown Library at Abilene Christian University.
Date: December 1994
Creator: Roach, James Kenneth, 1935-
Partner: UNT Libraries

Experimental Synchronization of Chaotic Attractors Using Control

Description: The focus of this thesis is to theoretically and experimentally investigate two new schemes of synchronizing chaotic attractors using chaotically operating diode resonators. The first method, called synchronization using control, is shown for the first time to experimentally synchronize dynamical systems. This method is an economical scheme which can be viably applied to low dimensional dynamical systems. The other, unidirectional coupling, is a straightforward means of synchronization which can be implemented in fast dynamical systems where timing is critical. Techniques developed in this work are of fundamental importance for future problems regarding high dimensional chaotic dynamical systems or arrays of mutually linked chaotically operating elements.
Date: December 1994
Creator: Newell, Timothy C. (Timothy Charles)
Partner: UNT Libraries

Play Therapy Behavior of Sexually Abused Children

Description: This survey research was designed to identify play therapy behaviors of sexually abused children. A survey instrument was developed from a comprehensive review of the professional literature and the assistance of an expert panel. After a field test, 140 items of play therapy behavior were developed into a survey instrument. The respondent was asked to rate on a Likert scale the frequency of occurrence of these play therapy behaviors of sexually abused children. Each play therapy behavior was rated for the following four groups: Males, 3-6 Years; Females, 3-6 Years; Males, 7-10 Years and Females, 7-10 Years. The entire international membership of the Association of Play Therapy (APT) was used to obtain the largest possible number of viable responses. As anticipated, of the 786 replies, 41% were not seeing sexually abused children in play therapy. In order to insure the most robust findings possible, it was determined to utilize data from the 249 most experienced play therapists (having worked with 16 or more sexually abused children). The typical respondent in this group was a female play therapist, 40-50 years of age, with a Masters degree in Counseling or Social Work.
Date: December 1994
Creator: Homeyer, Linda.
Partner: UNT Libraries

A Recommended Curriculum for Teaching Score Study in the Undergraduate Instrumental Conducting Class

Description: The purpose of this study was to create and gain consensus of an essential curriculum for teaching score study in the undergraduate instrumental conducting class. Questions to be answered by this study were what methods, materials, and evaluations should be used to teach score study to undergraduate instrumental conducting students? Resolving the questions required the collection of information on the methods, materials, and evaluations used in teaching score preparation in the undergraduate instrumental conducting class and the opinions of conductors and teachers of conducting about those methods, materials, and evaluations.
Date: December 1994
Creator: Hamilton, Craig V.
Partner: UNT Libraries

The Condition of the Southern Baptist Professoriate : A Comparison with the Carnegie Foundations 1989 National Survey of Faculty

Description: Southern Baptist-Related college faculty attitudes and opinions on areas of higher education most important to the professoriate as identified by the Carnegie Foundation in its 1989 National Survey of Faculty are described in this study and compared with the data from the survey reported by the Carnegie Foundation in The Condition of the Professoriate: Attitudes and Trends, 1989 and Scholarship Reconsidered: Priorities of the Professoriate. The data were compared in the eight areas: goals of collegiate education, academic standards, attitudes about student life, teaching, research, and service, status of the profession, views of the institution, participation in decision-making, and general observations of higher education.
Date: December 1994
Creator: Reynolds, John Harry
Partner: UNT Libraries

Computer Simulation Placements in a Unit of Instruction

Description: Educators considering implementing a computer simulation must decide on the optimum placement of the simulation in the unit of instruction to maximize student learning. This study examined student achievement using two different placements for the computer simulation, The Civil War, in a unit of instruction of 8th grade American History students in a suburban middle school.
Date: December 1994
Creator: Naumann, Steve E. (Steve Eugene)
Partner: UNT Libraries