UNT Theses and Dissertations - 349 Matching Results

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Study of Substituted Benzenesulfonate-Containing Layered Double Hydroxides and Investigation of the Hexamethylenetetramine Route of LDH Synthesis

Description: Benzenesulfonates, para-substituted with amine, chloride and methyl groups were successfully incorporated into layered double hydroxides of two different compositions, 2:1 Mg-Al LDH and 2:1 Zn-Al LDH. These parent materials were also doped with small amounts of nickel and the differences in the two systems were studied. The hexamethylenetetramine route of layered double hydroxide synthesis was investigated to verify if the mechanism is indeed homogeneous. This included attempting preparation of… more
Date: May 2007
Creator: Ambadapadi, Sriram
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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An Analysis of the Characteristics of Female Juvenile Offenders as Predictors of Resocialization or Recidivism.

Description: Because there has been a paucity of research on the educational needs of females with academic, behavioral, and emotional problems involved with the juvenile justice system, this study has been an attempt to classify and compare specific characteristics of this population. In particular, it examined their demographics, disability prevalence rates, along with academic, behavioral, and emotional functioning levels, in order to further understand their relationship to the resocialization or recidi… more
Date: May 2007
Creator: Aiello, Jan Elizabeth
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Perceived attributes of diffusion of innovation theory as predictors of Internet adoption among faculty members of Imam Mohammed Bin Saud University.

Description: The Internet is the most common communication and research tool worldwide. Perusal of the World Wide Web quickly reveals the variety of information available. Internet adoption can be considered the late 20th century's most important event. In academic environments today, Internet use among faculty members has been widely expanded, with professors now integrating Internet technology into classroom activities. Imam Muhammad Bin Saud Islamic University (IMSU) is a pioneering public university in … more
Date: May 2007
Creator: Almobarraz, Abdullah
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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An examination of the effects of accuracy+rate versus accuracy+observing response training methods on matching-to-sample performance.

Description: The relative efficacy of training procedures emphasizing accuracy versus those which add a rate criterion is a topic of debate. The desired learning outcome is fluent responding, assessed by measures of retention, endurance, stability, and application. The current study examined the effects of these two procedures on fluency outcomes using a matching-to-sample paradigm to train participants to match English to Japanese characters. An explicit FR-3 observing response was added to an accuracy-onl… more
Date: May 2007
Creator: Anderson, Jesse
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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College Student Adaptability and Greek Membership: A Single Institution Case Study

Description: Since the birth of the United States in 1776, Greek-letter societies have been an integral part of American higher education. Research on the impact of Greek membership varies at best, and often is in conflict from study to study. This study surveyed students affiliated with Greek-letter organizations at the University of North Texas. The research examined the college adaptability of Greek students by gender in five areas: Overall adjustment, academic adjustment, personal-emotional adjustment, … more
Date: May 2007
Creator: Ayres, Amy R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Establishing genetic and physiological baselines for the black-tailed prairie dog (Cynomys ludovicianus).

Description: The black-tailed prairie dog (Cynomys ludovicianus) has experienced dramatic declines over much of its historical range due to habitat loss, plague, poisonings, and shootings. Many populations now occur as isolated genetic relicts. A multiple locus genetic profile was obtained using microsatellite analyses of six polymorphic nucleotide repeats from 319 black-tailed prairie dogs collected from 16 colonies throughout the state of Texas. This assessment revealed that existing populations have suff… more
Date: May 2007
Creator: Biggs, Cindy Dawn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Contravention of Established Principles of Interspecific Allometric Metabolic Scaling in Developing Silkworms, Bombyx Mori.

Description: Established interspecific metabolic allometric relationships do not adequately describe the complexity and variable physiological states of developing animals. Consequently, intraspecific allometric relationships of oxygen consumption and carbon dioxide production as a function of body mass; the respiratory quotient; the function of the silk cocoon; and body composition were investigated for each distinct developmental stage of the silkworm, Bombyx mori. Whole animal O2 consumption in Bombyx r… more
Date: May 2007
Creator: Blossman-Myer, Bonnie
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Little Weird: Self and Consciousness in Contemporary, Small-press, Speculative Fiction

Description: This dissertation explores how contemporary, small-press, speculative fiction deviates from other genres in depicting the processes of consciousness in narrative. I study how the confluence of contemporary cognitive theory and experimental, small-press, speculative fiction has produced a new narrative mode, one wherein literature portrays not the product of consciousness but its process instead. Unlike authors who worked previously in the stream-of-consciousness or interior monologue modes, wri… more
Date: May 2007
Creator: Bradley, Darin Colbert
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Representation of Hispanic Females in Gifted and Talented and Advanced Placement Programs in a Selected North-Central Texas Public High School

Description: Analysis of a particular north-central Texas public high school revealed a strong representation of Hispanic females in advanced academic programs, i.e., AP and GT in proportion to their representation in the overall student population. Research seems to indicate that a progressive approach to academic-potential identification; culturally effective mentoring, traditional Hispanic values, and newly emerging personal and social characteristics all seem to be contributing factors. This study seems… more
Date: May 2007
Creator: Brown, Monty
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Complexity as Aging Non-Poisson Renewal Processes

Description: The search for a satisfactory model for complexity, meant as an intermediate condition between total order and total disorder, is still subject of debate in the scientific community. In this dissertation the emergence of non-Poisson renewal processes in several complex systems is investigated. After reviewing the basics of renewal theory, another popular approach to complexity, called modulation, is introduced. I show how these two different approaches, given a suitable choice of the parameter … more
Date: May 2007
Creator: Bianco, Simone
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Determining Properties of Synaptic Structure in a Neural Network through Spike Train Analysis

Description: A "complex" system typically has a relatively large number of dynamically interacting components and tends to exhibit emergent behavior that cannot be explained by analyzing each component separately. A biological neural network is one example of such a system. A multi-agent model of such a network is developed to study the relationships between a network's structure and its spike train output. Using this model, inferences are made about the synaptic structure of networks through cluster analys… more
Date: May 2007
Creator: Brooks, Evan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Applying Cognitive Load Theory to the Design of Online Learning.

Description: The purpose of the study was to investigate the application of cognitive load theory to the design of online instruction. Students in three different courses (N = 146) were measured on both learning performance and perceptions of mental effort to see if there were any statistically significant differences. The study utilized a quasi-experimental posttest-only control group design contrasting modified and unmodified instructional lessons. Both groups were given a posttest to measure knowledge ga… more
Date: May 2007
Creator: Burkes, Kate M. Erland
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Comparison of Bare Root vs. Potted Plants, Species Selection, and Caging Types for Restoration of a Prairie Wetland, and Quantitative Analysis and Descriptive Survey of Plant Communities and Associations at Lewisville Lake Environmental Learning Area (LLELA), Lewisville, TX

Description: Lewisville Lake Environmental Learning Area (LLELA) is an 809-hectare property in Denton County, TX. A study of the vegetation community identified 466 species in 104 families, with 25% of the species from only two families, Asteraceae and Poaceae. The property demonstrates the characteristics of an early successional community, dominated by weedy species. Prairie communities are dominated by Johnson grass and ragweed, with climax tall grass prairie communities only in areas that have been plan… more
Date: May 2007
Creator: Buckallew, Robin R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Boston Naming Test with Latencies (BNT-L)

Description: Although most people have experienced word-finding difficulty at one time or another, there are no clinical instruments able to reliably distinguish normal age-related effects from pathology in word-finding impairment. Two experiments were conducted to establish a modified version of the Boston Naming Test (BNT) that includes latency times, the Boston Naming Test of Latencies (BNT-L), in order to improve the instrument's sensitivity to mild to moderate word-finding impairment. Experiment 1: Lat… more
Date: May 2007
Creator: Budd, Margaret Anne
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Geologic and Archaeological History of the Dickie Carr Site 41PR26

Description: This thesis is an analysis and synthesis of the geologic and archaeological history of the Dickie Carr site, 41PR26, on Mill Creek in north central Texas. Included are analyses of the stratigraphy, sedimentary environments, and soils of the locality. A regional comparison is made with respect to the Late Quaternary geology of the upper Trinity River basin, Texas to interpret the geologic data. Two stratigraphic units were identified that record the Pleistocene-Holocene transition. The buried lo… more
Date: May 2007
Creator: Byers, Johnny A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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FPGA Prototyping of a Watermarking Algorithm for MPEG-4

Description: In the immediate future, multimedia product distribution through the Internet will become main stream. However, it can also have the side effect of unauthorized duplication and distribution of multimedia products. That effect could be a critical challenge to the legal ownership of copyright and intellectual property. Many schemes have been proposed to address these issues; one is digital watermarking which is appropriate for image and video copyright protection. Videos distributed via the Inter… more
Date: May 2007
Creator: Cai, Wei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Wonder Whose Origin is not Known: The Importance of the Orphan Hero in Otherworldly Film

Description: The purpose of this thesis is to explore the importance of the orphan hero in film and his resonance with the American people. It explores the orphan and the American identities, the archetypes found in myths, and the hero in American culture. The three heroes (Batman, Anakin Skywalker, and Harry Potter) represent certain aspects of orphan heroes: the capacity for sacrifice and the need to resist focusing on oneself. The type of hero each becomes has its source in the response he takes to his o… more
Date: May 2007
Creator: Callahan, Sarah Francis
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Gladstone and the Bank of England: A Study in Mid-Victorian Finance, 1833-1866

Description: The topic of this thesis is the confrontations between William Gladstone and the Bank of England. These confrontations have remained a mystery to authors who noted them, but have generally been ignored by others. This thesis demonstrates that Gladstone's measures taken against the Bank were reasonable, intelligent, and important for the development of nineteenth-century British government finance. To accomplish this task, this thesis refutes the opinions of three twentieth-century authors who h… more
Date: May 2007
Creator: Caernarven-Smith, Patricia
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Miles Davis: The Road to Modal Jazz

Description: The fact that Davis changed his mind radically several times throughout his life appeals to the curiosity. This thesis considers what could be one of the most important and definitive changes: the change from hard bop to modal jazz. This shift, although gradual, is best represented by and culminates in Kind of Blue, the first Davis album based on modal style, marking a clear break from hard bop. This thesis explores the motivations and reasons behind the change, and attempt to explain why it ca… more
Date: May 2007
Creator: Camacho Bernal, Leonardo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Perceptions of importance of diagnostic competencies among educational diagnosticians.

Description: This research was two-fold in its purpose: the first purpose being to assess the perceived relevance of the current state competency standards adopted in Texas by the State Board for Educator Certification (SBEC) as they apply to the work of the educational diagnostician and the second being to examine the diagnostician's perceived ability of training institutions to prepare professionals for the field of special education evaluation. This study examined the perceptions of educational diagnosti… more
Date: May 2007
Creator: Cavin, Lisa Lyle
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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For-profit higher education programs in the United States.

Description: This study examined the extent of research and teaching on higher education programs in the United States that focuses on for-profit higher education. This descriptive study used a 30-item questionnaire to gather the information reported here. This survey instrument was sent to the entire population of interest. This population was made up of all of the programs in higher education that are listed in the ASHE Higher Education Program Directory, which is produced by the Association for the Study… more
Date: May 2007
Creator: Chipps, Kenneth M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Use of the Polish Folk Music Elements and the Fantasy Elements in the Polish Fantasy on Original Themes in G-sharp Minor for Piano and Orchestra, Opus 19 by Ignacy Jan Paderewski

Description: The primary purpose of this study is to address performance issues in the Polish Fantasy, Op. 19, by examining characteristics of Polish folk dances and how they are incorporated in this unique work by Paderewski. The study includes a comprehensive history of the fantasy in order to understand how Paderewski used various codified generic aspects of the solo piano fantasy, as well as those of the one-movement concerto introduced by nineteenth-century composers such as Weber and Liszt. Given that… more
Date: May 2007
Creator: Choi, Yun Jung
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Female adolescents identified with emotional disturbance and adjudicated female adolescents: A comparison of self-concepts.

Description: This study addresses the academic, social, and self-image self-concepts of females ages 13-17 who are labeled emotionally and behaviorally disordered by their public school systems and are in residential treatment, and females ages 13-17 who are adjudicated, or labeled “juvenile offenders” and are involved with the juvenile justice system. The purpose of this study is to examine and compare the self-concepts of these populations of adolescent females. Research questions focus on whether or not … more
Date: May 2007
Creator: Christensen, Jennifer E.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Evaluation of the Situational Judgment Test

Description: This research attempts to confirm the reliability and construct validity of a personnel selection instrument called a Situational Judgment Test (SJT) through reliability analysis and factor analysis. The existing literature on SJTs is reviewed, including the advantages of using SJTs in personnel selection as well as the debate on whether SJTs measure a single construct or whether they can be multidimensional depending on the content. The specific SJT in this research was theoretically developed… more
Date: May 2007
Creator: Conner, Lane A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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