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Adolescent Psychopathy in an Adjudicated Male Population: The Role of Sensation Seeking, Impulsivity, and Externalizing Disorders (open access)

Adolescent Psychopathy in an Adjudicated Male Population: The Role of Sensation Seeking, Impulsivity, and Externalizing Disorders

Psychopathy, as conceptualized by Cleckley (1941), describes a constellation of psychological and behavioral correlates including superficial charm, untruthfulness, lack of remorse or shame, poor judgment, and failure to learn from experience. Based on Cleckley's initial work, Hare (1991) developed a two-factor model of psychopathy. The purpose of this study was to investigate the roles that sensation seeking, impulsivity, ADHD, conduct disorder, and oppositional defiant disorder have on adolescents classified as psychopaths. The participants consisted of 79 adjudicated male adolescents in a maximum-security facility. As hypothesized, adolescent male psychopaths had higher levels of sensation seeking, impulsivity, conduct disorder and oppositional defiant disorder. A discriminant function analysis found that sensation seeking, impulsivity, ADHD, Conduct Disorder, and Oppositional Defiant Disorder was moderately useful in classifying adolescent psychopathy. The results suggest that behavioral dysregulation is an important aspect of adolescent psychopathy. The relationship of these data to theories of adolescent psychopathy is discussed.
Date: August 2002
Creator: Vitacco, Michael J.
System: The UNT Digital Library
An Analysis of Periodic Rhythmic Structures in the Music of Steve Reich and György Ligeti (open access)

An Analysis of Periodic Rhythmic Structures in the Music of Steve Reich and György Ligeti

The compositions of Steve Reich and György Ligeti both contain periodic rhythmic structures. Although periods are not usually easily perceived, the listener may perceive their combinations in a hierarchy of rhythmic structures. This document is an attempt to develop an analytical method that can account for this hierarchy in periodic music. I begin with an overview of the features of Reich's and Ligeti's music that contribute to the property of periodicity. I follow with a discussion of the music and writings of Olivier Messiaen as a precedent for the periodic structures in the music of Reich and Ligeti. I continue by consulting the writings of the Israeli musicologist Simha Arom and describing the usefulness of his ideas and terminology in the development of my method. I explain the working process and terminology of the analytical method, and then I apply it to Reich's Six Pianos and Ligeti's Désordre.
Date: August 2002
Creator: Isgitt, David
System: The UNT Digital Library

Application of Thermomechanical Characterization Techniques to Bismuth Telluride Based Thermoelectric Materials

Access: Use of this item is restricted to the UNT Community
The thermoelectric properties of bismuth telluride based thermoelectric (TE) materials are well-characterized, but comparatively little has been published on the thermomechanical properties. In this paper, dynamic mechanical analysis (DMA) and differential scanning calorimetry data for bismuth telluride based TE materials is presented. The TE materials' tan delta values, indicative of viscoelastic energy dissipation modes, approached that of glassy or crystalline polymers, were greater than ten times the tan delta of structural metals, and reflected the anisotropic nature of TE materials. DMA thermal scans showed changes in mechanical properties versus temperature with clear hysteresis effects. These results showed that the application of DMA techniques are useful for evaluation of thermophysical and thermomechanical properties of these TE materials.
Date: August 2002
Creator: White, John B.
System: The UNT Digital Library
Better Teaching Model? Middle School Science Classroom Using the 4MAT Instructional Strategy vs. Lessons Created Without this Model (open access)

Better Teaching Model? Middle School Science Classroom Using the 4MAT Instructional Strategy vs. Lessons Created Without this Model

The problem investigated was the need for effective and efficient learning for middle school science students to meet expectations set in Goals 2000. The use of the 4MAT Instructional Method was investigated as a possible method for attainment of current science standards. The study included one middle school science instructor's classes with 89 participating students. Measurements were taken and comparisons drawn using three assessment methods to determine if improved academic achievement and attitude scores resulted. Data analysis yielded no significant conclusion in either academic achievement or attitude improvement; however, observations of the researcher indicated potential usefulness of the 4MAT approach. The t-value calculated in the assessment methods was insufficient with a .05 probability of error present in the findings. The limitations of the study skewed the results and outweighed the possible observational insight.
Date: August 2002
Creator: Delaney, Alice
System: The UNT Digital Library

Breaking Through: A Composition for Symphony Orchestra

Access: Use of this item is restricted to the UNT Community
Breaking Through is a single-movement composition for symphony orchestra based on a fourteen-note melody. Every harmonic and melodic figure except the bass line is derived from this source melody. The structure of the work is based on a number of musical dichotomies that work on both local and large-scale levels. The local dichotomies contrast consonance with dissonance and ambiguity with clarity (in respect to texture and rhythm). The dichotomy of two-part form versus three-part form and the dichotomy of simplicity versus complexity operate on the large scale. The unity lended by the single source melody coupled with the contrasts furnished by the aforementioned dichotomies allow Breaking Through to be both coherent and interesting.
Date: August 2002
Creator: Dribus, John Alexander
System: The UNT Digital Library
A Case Study on Police Misconduct in the United States of America and an Applicable Model for the Turkish National Police. (open access)

A Case Study on Police Misconduct in the United States of America and an Applicable Model for the Turkish National Police.

This study explores the underlying causes and deterrent control mechanisms of police misconduct in the United States. Outcomes of causes and control mechanisms constitute the basis for an applicable model for the Turkish National Police (TNP). Why is some police behavior deviate? What are the main determinants of police misconduct? Is police misconduct a result of sociological behavior and subcultural development within police organizations or a psychological behavior as an outcome of officers' personal traits? What are the control mechanisms for police misconduct? What are their strengths and weaknesses? Do they deter or not? Is there a control mechanism that deters better than others? What is the best deterrence model for the TNP?
Date: August 2002
Creator: Lofca, Izzet
System: The UNT Digital Library
Changing Ideological Boots:  Adaptive Legislator Behavior in Changing Districts (open access)

Changing Ideological Boots: Adaptive Legislator Behavior in Changing Districts

Congressional roll-call votes are often used to investigate legislative voting behavior. To depict adaptive roll-call behavior in response to demographic changes that occur during redistricting, I use issue specific interest group scores from the ADA, NFU, and COPE. This exploits the bias in the selection of the issues that interest groups utilize to rate U.S. representatives, by using them to reflect changes in response to significant demographic fluctuations in the constituency population. The findings indicate that while party is the most significant factor in whether legislators adapt their voting in favor of certain groups, they do notice group composition changes within district and adapt their voting accordingly. This illustrates the impact of redistricting on policy and legislators' adaptation to changes in district composition.
Date: August 2002
Creator: Dunaway, Johanna
System: The UNT Digital Library

Changing Privacy Concerns in the Internet Era.

Access: Use of this item is restricted to the UNT Community
Privacy has always been a respected value regardless of national borders, cultural differences, and time in every society throughout history. This study focuses on the unprecedented changes in the traditional forms of privacy and consequent concerns with regard to invasion of privacy along with the recent emergence and wide use of the Internet. Government intrusion into private domains through the Internet is examined as a major concern. Privacy invasions by Web marketers, hacker threats against privacy, and employer invasion of employee privacy at the workplace are discussed respectively. Then a set of possible solutions to solve the current problems and alleviate the concerns in this field is offered. Legal remedies that need to be performed by the government are presented as the initial solution. Then encryption is introduced as a strong technical method that may be helpful. Finally, a set of individual measures emphasized as complementary practical necessities. Nevertheless, this study indicates that technology will keep making further changes in the form and concerns of privacy that possibly may outdate these findings in the near future, however, privacy itself will always remain as a cherished social value as it has always been so far.
Date: August 2002
Creator: Demir, Irfan
System: The UNT Digital Library
Characteristics of Community Service Programs and Probationers in Texas (open access)

Characteristics of Community Service Programs and Probationers in Texas

As a criminal sanction, community service involves unpaid labor on the part of convicted criminal offenders. Community service was created as an alternative to incarceration for low-level offenders. It now appears, however, that community service is rarely used as a true alternative to prison, but rather as an added condition of probation. The body of research on community service in the United States is modest, so relatively little is known about its characteristics and administration. Data were attained from 88 Texas probation professionals via self-administered written surveys in an effort to gather information about the use of community service as a criminal sanction in Texas. Frequency distribution analyses identified characteristics of both community service programs and offender participants in Texas.
Date: August 2002
Creator: Roberts, Darrin David
System: The UNT Digital Library
Civil Asset Forfeiture in the Fight Against Drugs (Policy Analysis) (open access)

Civil Asset Forfeiture in the Fight Against Drugs (Policy Analysis)

Even if the main criminals of an organization are incarcerated, they will be replaced by others who would continue illegal activities, unless their financial assets are removed. Thus, civil forfeiture intends to dismantle the economic infrastructure of drug trafficking networks. Civil forfeiture considers the property as guilty, rather than the owner, and it may exist even if there is not a criminal action. Therefore, it is claimed that police agencies have chosen easy targets, such as wealthy drug users rather than major drug traffickers. Consequently, it has been particularly challenged on the basis of the Excessive Fines, Double Jeopardy, and Due Process Clauses. The use of criminal forfeiture instead of civil forfeiture and the elimination of the equitable sharing provision are considered to be the primary solutions.
Date: August 2002
Creator: Tuncer, Hakki
System: The UNT Digital Library
Community Policing Training Programs and Their Roles in Implementation of Community Policing (open access)

Community Policing Training Programs and Their Roles in Implementation of Community Policing

The main goal of this study is to indicate the importance of community policing training programs for implementation of community policing. Community policing requires a transition from traditional policing methods to proactive and problem-oriented policing which is constructed upon police-citizen partnership. For the successful implementation of community policing, the change process needs to be fully realized throughout the organization. Suitably appropriate methods of training will help both officers and citizens to fully understand the goals of community policing. This study focuses on the types of existing community training methods as well as the obstacles that complicate training efforts. Consequently, this study provides some recommendations on community policing training programs to make them more helpful for police departments.
Date: August 2002
Creator: Demir, Cuneyt
System: The UNT Digital Library
Comparative Analysis of Interrelations Between Democracy and Democratic Policing Practices (open access)

Comparative Analysis of Interrelations Between Democracy and Democratic Policing Practices

It is assumed that democratic policing will help to improve the respect of human rights and democracy in a given country. Using secondary data, this study explores cross-nationally the interrelation between democratic policing practices (e.g., community policing) and democracy and human rights.The results show significant positive correlation between the practice of democratic policing and indicators of democracy and respect for human rights. The analysis strongly implies that scholars have underestimated the power of policing institutions in democratic societies.
Date: August 2002
Creator: Can, Salih Hakan
System: The UNT Digital Library
Comparing Five Empirical Biodata Scoring Methods for Personnel Selection (open access)

Comparing Five Empirical Biodata Scoring Methods for Personnel Selection

A biodata based personnel selection measure was created to improve the retention rate of Catalog Telemarketing Representatives at a major U.S. retail company. Five separate empirical biodata scoring methods were compared to examine their usefulness in predicting retention and reducing adverse impact. The Mean Standardized Criterion Method, the Option Criterion Correlation Method, Horizontal Percentage Method, Vertical Percentage Method, and Weighted Application Blank Method using England's (1971) Assigned Weights were employed. The study showed that when using generalizable biodata items, all methods, except the Weighted Application Blank Method, were similar in their ability to discriminate between low and high retention employees and produced similar low adverse impact effects. The Weighted Application Blank Method did not discriminate between the low and high retention employees.
Date: August 2002
Creator: Ramsay, Mark J.
System: The UNT Digital Library
A Comparison of Mall Shopping Behavior Between Hispanic-Americans and Anglo-Americans (open access)

A Comparison of Mall Shopping Behavior Between Hispanic-Americans and Anglo-Americans

The population percentage, population growth, buying power, and geographic concentration of Hispanic-Americans in the United States is causing marketers and retailers to carefully examine this market segment. Through a better understanding of Hispanic-American consumers, marketers and retailers will be more capable of meeting their wants and needs. Tailoring marketing promotions and strategies can help a company more effectively reach the Hispanic-American market. This study compared Hispanic-Americans and Anglo-Americans in their general shopping characteristics, responses to excitement in the mall, consumption patterns, and repatronage intention. A total of seven hypotheses were developed, all of which were either supported or partially supported.
Date: August 2002
Creator: Sanchez, Marissa R.
System: The UNT Digital Library
A comparison of moral reasoning and moral orientation of American and Turkish university students. (open access)

A comparison of moral reasoning and moral orientation of American and Turkish university students.

This study compares American and Turkish male and female university students in terms of moral orientation (justice and care) and Kohlberg's stages of moral reasoning to examine the influence of culture and gender on moral development. A total of 324 undergraduate students between the ages of 18 and 46 are administered the Defining Issues Test (DIT) and the Measure of Moral Orientation (MMO). Statistical analyses indicate Turkish participants reflect more postconventional reasoning, while American participants reflect more conventional reasoning, particularly Stage 4 reasoning. Analyses also reveal Turkish participants reflect significantly more care orientation and more justice orientation compared to American participants. These findings are discussed in terms of cultural and gender influences in moral decision-making.
Date: August 2002
Creator: Kuyel, Nilay Ozkan
System: The UNT Digital Library

Computer Crime as a Barrier to Electronic Commerce: New Solutions for Public Law Enforcement.

Access: Use of this item is restricted to the UNT Community
Electronic commerce was expected to grow exponentially, but the actual rate of growth in recent years has been disappointing. Recent surveys of perceptions of the development of electronic commerce clearly focus our attention on the perception and fear of computer crime as the major cause of this disappointing growth pattern. The thesis critiques existing private law solutions to this problem and argues from a normative theory on “the commons” for the application of new public law enforcement solutions in the public trust, sanctions, and public coproduction of order. The thesis argues that given the failures of existing private law solutions to the problem, these public law enforcement solutions should be more effective, efficient, and more satisfactory.
Date: August 2002
Creator: Temur, Nuri
System: The UNT Digital Library
Control Mechanisms and Recovery Techniques for Real-Time Data Transmission Over the Internet. (open access)

Control Mechanisms and Recovery Techniques for Real-Time Data Transmission Over the Internet.

Streaming multimedia content with UDP has become popular over distributed systems such as an Internet. This may encounter many losses due to dropped packets or late arrivals at destination since UDP can only provide best effort delivery. Even UDP doesn't have any self-recovery mechanism from congestion collapse or bursty loss to inform sender of the data to adjust future transmission rate of data like in TCP. So there is a need to incorporate various control schemes like forward error control, interleaving, and congestion control and error concealment into real-time transmission to prevent from effect of losses. Loss can be repaired by retransmission if roundtrip delay is allowed, otherwise error concealment techniques will be used based on the type and amount of loss. This paper implements the interleaving technique with packet spacing of varying interleaver block size for protecting real-time data from loss and its effect during transformation across the Internet. The packets are interleaved and maintain some time gap between two consecutive packets before being transmitted into the Internet. Thus loss of packets can be reduced from congestion and preventing loss of consecutive packets of information when a burst of several packets are lost. Several experiments have been conducted with …
Date: August 2002
Creator: Battula, Venkata Krishna Rao
System: The UNT Digital Library
The Design and Implementation of a Prolog Parser Using Javacc (open access)

The Design and Implementation of a Prolog Parser Using Javacc

Operatorless Prolog text is LL(1) in nature and any standard LL parser generator tool can be used to parse it. However, the Prolog text that conforms to the ISO Prolog standard allows the definition of dynamic operators. Since Prolog operators can be defined at run-time, operator symbols are not present in the grammar rules of the language. Unless the parser generator allows for some flexibility in the specification of the grammar rules, it is very difficult to generate a parser for such text. In this thesis we discuss the existing parsing methods and their modified versions to parse languages with dynamic operator capabilities. Implementation details of a parser using Javacc as a parser generator tool to parse standard Prolog text is provided. The output of the parser is an “Abstract Syntax Tree” that reflects the correct precedence and associativity rules among the various operators (static and dynamic) of the language. Empirical results are provided that show that a Prolog parser that is generated by the parser generator like Javacc is comparable in efficiency to a hand-coded parser.
Date: August 2002
Creator: Gupta, Pankaj
System: The UNT Digital Library

Developing a Test Bed for Interactive Narrative in Virtual Environments

Access: Use of this item is restricted to the UNT Community
As Virtual Environments (VE) become a more commonly used method of interaction and presentation, supporting users as they navigate and interact with scenarios presented in VE will be a significant issue. A key step in understanding the needs of users in these situations will be observing them perform representative tasks in a fully developed environment. In this paper, we describe the development of a test bed for interactive narrative in a virtual environment. The test bed was specifically developed to present multiple, simultaneous sequences of events (scenarios or narratives) and to support user navigation through these scenarios. These capabilities will support the development of multiple users testing scenarios, allowing us to study and better understand the needs of users of narrative VEs.
Date: August 2002
Creator: Mellacheruvu, Krishna
System: The UNT Digital Library

Effects of Hedonic and Utilitarian Shopping Satisfaction on Mall Consumption

Access: Use of this item is restricted to the UNT Community
The modern consumer expects a consumption experience with both hedonic and utilitarian rewards during a single visit to the mall. The orchestrating of both hedonic and utilitarian benefits in one visit challenges mall management and retailers to deliver the maximum shopping experience. This study seeks to reveal relationships among six variables: demographic characteristics, mall shopping orientation, mall perception, hedonic satisfaction, utilitarian satisfaction, and mall consumption. The intercept survey was conducted at a major entertainment-themed mall in north Texas. Multiple regression analyses (N = 202) indicate that demographic characteristics and mall shopping orientation were significant predictors of mall perception. Also, two mall perception factors (Sensation and Physical Environment) were predictors of hedonic and utilitarian mall shopping satisfaction. However, hedonic and utilitarian mall shopping satisfaction were found not to predict mall consumption in terms of cross-shopping, money spent, and time spent.
Date: August 2002
Creator: Buhrman, Tiffany
System: The UNT Digital Library
The Effects of Priming and Contingent Attention on Novel Play Episodes in a Child with Autism (open access)

The Effects of Priming and Contingent Attention on Novel Play Episodes in a Child with Autism

This study evaluated the effects of priming and contingent attention procedures on play variability in a child with autism. During baseline, numbers of novel play episodes, different play episodes, and actions occurred at low rates. Priming procedures did not produce desired change. When contingent attention was implemented, significant increases occurred in novel play episodes, different actions, and different play episodes. These results show that attention contingent on variable play episodes can increase the number of novel responses to play materials. The results are discussed within the context of treatment and future research.
Date: August 2002
Creator: Josendale, Julianne R.
System: The UNT Digital Library
Efficacy of Juvenile Offender Assessments: Utilization of Recommendations, Measurement Constructs, and Risk Factors (open access)

Efficacy of Juvenile Offender Assessments: Utilization of Recommendations, Measurement Constructs, and Risk Factors

The purpose of this study was to explore the efficacy of juvenile offender assessments. Data from 104 juvenile offender assessments were analyzed and followed up with placement, subsequent offending, and outcome data from the juvenile and adult systems. Constructs consistently assessed included intellectual functioning, academic achievement, and personality functioning; however, under-diagnosis of intellectual deficits, learning disabilities, and personality disorders was found. Results indicated the assessment of family functioning, substance use, and social functioning should be included in comprehensive assessments, as they may result in alternative placement and treatment options of benefit to the juvenile offender. A juvenile offender typology proposed by DiCataldo and Grisso (1995) was successfully utilized and proved predictive of recidivism, future harm to others, and outcome.
Date: August 2002
Creator: Van Drie, Barbara G
System: The UNT Digital Library
Electrodeposition of Diamond-like Carbon Films (open access)

Electrodeposition of Diamond-like Carbon Films

Electrodeposition of diamond-like carbon (DLC) films was studied on different substrates using two different electrochemical methods. The first electrochemical method using a three-electrode system was studied to successfully deposit hydrogenated DLC films on Nickel, Copper and Brass substrates. The as-deposited films were characterized by scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR) and cyclic voltammetry (CV). A variety of experimental parameters were shown to affect the deposition process. The second electrochemical method was developed for the first time to deposit hydrogen free DLC films on Ni substrates through a two-electrode system. The as-deposited films were characterized by Raman spectroscopy and FTIR. According to Raman spectra, a high fraction of diamond nanocrystals were found to form in the films. Several possible mechanisms were discussed for each deposition method. An electrochemical method was proposed to deposit boron-doped diamond films for future work.
Date: August 2002
Creator: Chen, Minhua
System: The UNT Digital Library
The Emergence of Organization Through Communication (open access)

The Emergence of Organization Through Communication

Taylor, Cooren, Giroux, and Robichaud (1996) theorize that an organization is created entirely through the interpretations of its members and it evolves as those conversations change. Demonstrating the Taylor et al. theory, the current study focuses on the outcomes of management vision and strategic planning sessions in a division of a large Southwestern University. It explores the ways organization emerges through the discourse of the managers, how text is amplified to support the organization as a whole, the ways organization continues to emerge in communication, and in what ways the emergent view of organization exists throughout the division. The results of the study support the Taylor et al. theory. Management participants created an expanded view of the organization through discourse and then linked it to the university as a whole. Evidence was found supporting continued reformulation but it was limited to the management participants and did not include hourly employees.
Date: August 2002
Creator: Hope, Michael
System: The UNT Digital Library