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Thermochemical investigations of crystalline solutes in non-electrolyte solutions: Mathematical representation of solubility data and the development of predictive solubility equations in systems with specific and non-specific interactions.

Description: Understanding the thermodynamic properties of multicomponent mixtures is of critical importance in many chemical and industrial applications. Experimental measurements become progressively difficult as the number of solution components increases -- producing the need for predictive models. Problems in development of predictive models arise if the mixture has one or more components that interact through molecular complexation or association. Experimental solubilities of anthracene and pyrene di… more
Date: May 2008
Creator: Zvaigzne, Anita Ilze
Partner: UNT Libraries
open access

Investigating the effects on parallel play between siblings: Teaching children with autism to emit social phrases to their typically developing sibling.

Description: The focus of this study was three fold. First, modeling and feedback were investigated as a training package for social interactions between siblings. Second, the effects of social phrases taught to the sibling with autism were investigated. Third, the magnitude of these social phrases was measured by timing duration of parallel play. The experimental design is an A-B-A1-A2 design conducted in a clinic, with a probe for generalization in the home environment. This intervention was replicated… more
Date: December 2008
Creator: Hille, Katrina J.
Partner: UNT Libraries
open access

Adolescent Self-Mutilating Behaviors: Experiential Avoidance Coupled with Imitation?

Description: Repetitive self-mutilation (RSM) has become increasingly prevalent among adolescents. Empirical research has pinpointed several correlates of this behavior, but the initiation and maintenance of RSM among adolescents are not well understood. The experiential avoidance model (EAM) proposes that self-mutilation is a behavior that allows for the avoidance or alteration of unwanted internal experiences, and that it is negatively reinforced with repetition. The current study explored the usefulness … more
Date: August 2008
Creator: Howe-Martin, Laura S.
Partner: UNT Libraries
open access

A Constructive Method for Finding Critical Point of the Ginzburg-Landau Energy Functional

Description: In this work I present a constructive method for finding critical points of the Ginzburg-Landau energy functional using the method of Sobolev gradients. I give a description of the construction of the Sobolev gradient and obtain convergence results for continuous steepest descent with this gradient. I study the Ginzburg-Landau functional with magnetic field and the Ginzburg-Landau functional without magnetic field. I then present the numerical results I obtained by using steepest descent with t… more
Date: August 2008
Creator: Kazemi, Parimah
Partner: UNT Libraries
open access

Search for super symmetry at the Tevatron using the trilepton signature

Description: This dissertation describes a search for the associated production of the supersymmetric particles, the chargino and the neutralino, through their R-parity conserving decays to three leptons and missing energy. This search is carried out using the data collected at the CDF experiment at the Tevatron {radical}s = 1.96 TeV p{bar p} collider at Fermilab. The results are obtained by combining five independent channels with varying signal to background ratio. Overall, a total of 6.4 {+-} 1.1 backgro… more
Date: October 1, 2008
Creator: Dube, Sourabh Shishir
Partner: UNT Libraries Government Documents Department
open access

Information systems success and technology acceptance within a government organization.

Description: Numerous models of IS success and technology acceptance their extensions have been proposed and applied in empirical. This study continues this tradition and extends the body of knowledge on the topic of IS success by developing a more comprehensive model for measuring IS success and technology acceptance within a government organization. The proposed model builds upon three established IS success and technology acceptance frameworks namely the DeLone and McLean (2003), Venkatesh et al.'s (2003… more
Date: August 2008
Creator: Thomas, Patricia
Partner: UNT Libraries
open access

A Stylistic and Analytical Study of The Key for Trumpet and Piano by James Wintle

Description: James Wintle (b.1942) is one of America's most successful living composers. Wintle and his compositions have attracted the attention of many prominent performers and scholars over the last three decades. The Key for trumpet and piano was composed in 1988 for Chris Gekker, an outstanding trumpet player. The Key consists of four movements: a fast movement in free form, a slow lyrical movement in song form (ABA'), a dance-like movement influenced by ragtime, and a fourth movement with a slow intro… more
Date: August 2008
Creator: Seo, Young Mi
Partner: UNT Libraries
open access

Search for CP violation in B0s to Jpsi Phi

Description: The CDF experiment, which uses p{bar p} collisions at {radical}s = 1.9 TeV produced at the Fermilab Tevatron, is unique in its ability to observe all flavors of B hadrons and measure their properties. Among them, CP violation is of fundamental interest. In the B{sup +} and B{sup 0} systems, measurements of CP violation parameters performed essentially at B factories have borne out the predictions of CKM model. Little is known, experimentally, about CP violation in the B{sub s}{sup 0} system. Th… more
Date: December 1, 2008
Creator: Liu, Chunlei & U., /Pittsburgh
Partner: UNT Libraries Government Documents Department
open access

The relationship between computer use and academic achievements.

Description: Computer technology has been used in education for years, and the government budgets large amounts of money to foster technology. However, it is still a debated whether computer technology makes a difference in students' learning outcomes. The purpose of this study is to find if any relationship exists between computer use by teachers and students and the students' academic achievement in math and reading for both traditional populations and English language learner (ELL) tenth graders. Comput… more
Date: August 2008
Creator: Huang, Sharon Hsiao-Shan
Partner: UNT Libraries
open access

Toward an Ideal Library: A Synthesis of Wilson's Library and Information Policy and Gilbert's Performance Matrix

Description: Inquiry about ideal library was sought by interdisciplinary approach from human competence derived from performance engineering by Gilbert (1978), and the library information policy by Wilson (1977). With Wilson's insights into the field of library and information science (LIS), this work demonstrated the synthesis of Wilson and Gilbert: engineering as common ground. One of the central concerns in LIS, utilization of knowledge, is re-conceptualized as Gilbert's view of performance, which refle… more
Date: August 2008
Creator: Koremura, Yuka
Partner: UNT Libraries
open access

Symbolic visuals in advertising: The role of relevance.

Description: Relevance has been applied to various conditions in the marketing literature but no single definition has been developed. A single clear definition will be helpful to researchers investigating relevance in the marketing and consumer behavior fields. Confusion also exists in the literature regarding to what extent a symbolic visual in an advertisement is relevant. Many researchers are also calling for empirical evidence of a linkage between relevance and response through a theoretical measure o… more
Date: August 2008
Creator: Holmes, Gary R.
Partner: UNT Libraries
open access

Rhythmic structure in the music of Jean Guillou: "Agni-Ignis" from Hyperion (1988).

Description: In 1988, Jean Guillou composed Hyperion on a commission from the French oil company, Société Nationale Elf Aquitaine, to celebrate its discovery of oil. He developed this theme of fire using his imagination, European philosophical concepts, and various myths. As with Messiaen, rhythm becomes a significant element in Guillou's organ music to convey a heightened dramatic story of an exaltation of fire and to represent the fourth movement of "Agni-Ignis." For aspects of rhythmic structure, I dev… more
Date: August 2008
Creator: Lee, Ju Yeon
Partner: UNT Libraries
open access

GIS application in emergency management of terrorism events on the University of North Texas campus.

Description: This thesis presents a Web-based geographic information system (GIS) application for campus emergency management that allows users to visualize, integrate, and analyze student population, facilities, and hazard data for efficient emergency management of University of North Texas before, during, and after a terrorism event. End-users can locate and search the source area of an event on a digital map from the ArcIMS-based Website. The website displays corresponding population information and attr… more
Date: August 2008
Creator: Tsang, Yuenting
Partner: UNT Libraries
open access

Shared Spaces: The Human and the Animal in the Works of Zora Neale Hurston, Mark Twain, and Jack London

Description: Living in tune with nature means respecting the natural environment and realizing its power and the ways it manifests in daily life. This essay focuses on the ways in which respect for nature is expressed through animal imagery in Zora Neale Hurston's Their Eyes Were Watching God, Mark Twain's "The Stolen White Elephant," Roughing It, and Pudd'nhead Wilson, and Jack London's The Call of the Wild. Each author encouraged readers to seek the benefits of nature in order to become better human being… more
Date: August 2008
Creator: Harper, Pamela Evans
Partner: UNT Libraries
open access

Terrorism and strain: An exploratory analysis of the impact that individual strain and negative affect have on violent behavior among trained Turkish Hezbollah members.

Description: This study attempts to explore the strains that terror organization members experience prior to the training process in the organization. The primary goal of this research is to understand the relationship between the earlier experienced strains of terrorists and their violent behaviors. In the study a Turkish Hezbollah terror organization sample (N = 144) was utilized in the frame of Agnew's (1992) general strain theory. Initially, quantitative methods, such as bivariate analysis and multivar… more
Date: August 2008
Creator: Kayaoglu, Mustafa
Partner: UNT Libraries
open access

Reducing the Computational Cost of Ab Initio Methods

Description: In recent years, advances in computer technology combined with new ab initio computational methods have allowed for dramatic improvement in the prediction of energetic properties. Unfortunately, even with these advances, the extensive computational cost, in terms of computer time, memory, and disk space of the sophisticated methods required to achieve chemical accuracy - defined as 1 kcal/mol from reliable experimental data effectively - limits the size of molecules [i.e. less than 10-15 non-h… more
Date: August 2008
Creator: Mintz, Benjamin
Partner: UNT Libraries
open access

Recidivism Outcomes among a Cohort of Violent Institutionalized Juvenile Offenders

Description: Serious and violent juvenile offenders cause a disproportionate amount of harm to society, yet this population receives very little attention within the realm of empirical research. This research study examined the recidivism outcomes of 296 serious and violent offenders previously exposed to rehabilitative treatment in the Capital and Serious Violent Offender Program provided by the Texas Youth Commission. This group of juveniles was followed for three years following their release from inst… more
Date: August 2008
Creator: Haerle, Darin R.
Partner: UNT Libraries
open access

Self-inflicted and other-inflicted intentional burns versus unintentional burns: A comparison study.

Description: Burn injuries are associated with significant mortality and morbidity. Intentional burn injuries are not well understood, and warrant study to improve adjustment and outcomes. The present study examined group differences between intentional and unintentional burn injuries, comparing individuals with self-inflicted (SIB; n=109) and other-inflicted (OIB; n=109) burns to an unintentional burn (UB) group. Compared to UB, those with intentional (SIB, OIB) burn injuries were more likely to be young, … more
Date: August 2008
Creator: Ranucci, Melissa B.
Partner: UNT Libraries
open access

Searching for hidden treasure: The identification of under-represented gifted and talented students.

Description: The purpose of this study was to examine the effect of staff development on the nomination and identification of culturally diverse and/or economically disadvantaged students for gifted programs. Teachers kindergarten through fifth grade from ten districts (N = 100) received 30 hours of staff development in gifted education. The experimental group (n = 50) received a specialized version of the training. The control group (n = 50) received the standard training provided by the Education Service… more
Date: August 2008
Creator: Tucker, Tammy Newman
Partner: UNT Libraries
open access

A follow-up study of a masters program for teachers of students with emotional/behavioral disorders.

Description: Educators today are faced with a worthy goal. Every student, including those with emotional and behavioral disorders (EBD), must be taught by a qualified teacher. However, recruiting, training, and retaining quality special education teachers continue to confound the field. The purpose of this study was to determine if the completion of a NCATE/CEC (National Council for Accreditation of Teacher Education/Council for Exceptional Children) approved masters program specializing in EBD from a well-… more
Date: August 2008
Creator: Walter, Paulette C.
Partner: UNT Libraries
open access

The Unpublished Works for Clarinet by Alexander Grechaninov: Preparing a Performance Edition of the Sonata No. 1 for Clarinet and Piano, Op. 161

Description: Alexander Grechaninov was one of the most important composers of the late Russian Romantic School. By the second half of the twentieth century he remained one of the few living composers who continued the traditions of the great Russian Romantic masters, such as Tchaikovsky and Rimsky-Korsakov. He is primarily known for his liturgical works, which are truly masterpieces of this genre. Because many of his instrumental works remain unpublished, particularly the chamber works, they continue to be … more
Date: August 2008
Creator: Perevertailenko, Dmytro Olexandrovich
Partner: UNT Libraries
open access

Institutional ownership and dividend policy: A framework based on tax clientele, information signaling and agency costs.

Description: This study is an empirical examination of a new theory that links dividends to institutional ownership in a framework of both information signaling and agency costs. Under this theory put forth by Allen, Bernardo and Welch in 2000, dividends are paid out to attract tax-favored institutional investors, thereby signaling good firm quality and/or more efficient monitoring. This is based on the premise that institutions are considered sophisticated investors with superior ability and stronger incen… more
Date: August 2008
Creator: Zaghloul Bichara, Lina
Partner: UNT Libraries
open access

Child Soldiers and Intrastate Armed Conflicts: An Analysis of the Recruitments of Child Soldiers in Civil Wars Between 2001 and 2003.

Description: This thesis examines why some governments and rebel organizations but not others recruit children to be child soldiers. The theory posits that if a country fights in a civil war of long duration, armed groups are more likely to recruit children as soldiers. I find that the probability of child soldier recruitment increases when a country experiences following conditions: a longer duration of civil war, a large proportion of battle deaths, a large number of refugees, a high infant mortality rate… more
Date: August 2008
Creator: Samphansakul, Attaphorn
Partner: UNT Libraries
open access

Nanocrystal Bioassembly: Asymmetry, Proximity, and Enzymatic Manipulation

Description: Research at the interface between biomolecules and inorganic nanocrystals has resulted in a great number of new discoveries. In part this arises from the synergistic duality of the system: biomolecules may act as self-assembly agents for organizing inorganic nanocrystals into functional materials; alternatively, nanocrystals may act as microscopic or spectroscopic labels for elucidating the behavior of complex biomolecular systems. However, success in either of these functions relies heavily up… more
Date: May 1, 2008
Creator: Claridge, Shelley A
Partner: UNT Libraries Government Documents Department
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