Month

An Examination of Methodological Rigor and Its Effects on Organizational Development and Change Outcomes

Access: Use of this item is restricted to the UNT Community
Organizational development and change (ODC) is a broad field because change occurs in all organizations, occurs at multiple organizational levels, consists of numerous interventions, and can impact multiple outcomes. Many ODC efforts attempt to examine the effectiveness of their initiatives, yet fail to account for the quality, or rigor of their methods. The purpose of this paper is to examine how methodological rigor and intervention implementation quality impact ODC outcomes. The results indicate that overall methodological rigor is not a significant predictor of organizational change outcomes; however, several individual rigor criteria exhibit predictive power. Implementation quality is a significant predictor of organizational outcomes, but in a negative direction.
Date: May 2005
Creator: Alexander, Sandra G.
System: The UNT Digital Library

A Drop of Oil

Access: Use of this item is restricted to the UNT Community
Many Christian writers point to God through their fiction without openly evangelizing. The images their words evoke lift their secular and religious readers' heads, for God is reflected in their use of language, the emotions they describe, and the actions of their characters. The preface and short stories in this collection aim to show that God's presence can be felt even when people are suffering due to human decisions and mistakes. He is with His creations in the midst of their pain to impart hope when they need it most.
Date: May 2005
Creator: Bullman, Carol
System: The UNT Digital Library

The Effects of Motivational and Instructional Self Talk on the Attentional Focus of High School Distance Runners.

Access: Use of this item is restricted to the UNT Community
The purposes of this study were to examine the (a) attentional focus strategies used by high school distance runners, (b) changes in attentional focus across four laps in three 1.6 km runs, and (c) effects of a pre-performance intervention using motivational and instructional self talk on the attentional focus strategies used by and performance of high school distance runners. Participants (N = 42) completed a background and demographic questionnaire, the Cross Country Attentional Focus Inventory (CCAFI), a motivational and instructional statement survey, and the Self-Motivation Inventory. A series of oneway ANOVAs revealed significant differences in the types of attentional strategies used by each group, as well as fluctuations in use of strategies. The experimental group associated more during the each of the 1.6 km trials, whereas the control group dissociated more throughout each trial. A significant group by week interaction was found, with the experimental group maintaining their performance and the control group slowing from week one to week three.
Date: May 2005
Creator: Burgess, Amber G.
System: The UNT Digital Library

Knowledge management in virtual organizations: A study of a best practices knowledge transfer model.

Access: Use of this item is restricted to the UNT Community
Knowledge management is a major concern for organizations today, and in spite of investments in technology, knowledge transfer remains problematic. This study sought to determine whether a relationship exists among participant group demographics (experience), implementation of an integrated knowledge transfer system (best practices model), knowledge transfer barriers, and knowledge transfer project (Web-based training) outcome in a virtual organization. The participant organization was a network of individuals and groups who practice patient advocacy in the research and treatment of cancer. These advocates volunteer in various capacities and are not collocated nor do they report to any single organizational entity. Volunteer participants were randomly assigned to a treatment or control condition. The treatment participants received a training supplement based upon a best practices knowledge transfer model. All participants reviewed a Web-based communications training module scheduled for deployment by the participant organization. Upon completion of the training program, participants were instructed to practice specific techniques from the program. At the end of this period, participants completed an online survey that measured demographics, perceived barriers to the knowledge transfer, and project outcome. Knowledge transfer barriers were defined as knowledge, source, recipient, and organizational context characteristics that inhibit the expected transfer. Project outcome was a …
Date: May 2005
Creator: Berryman, Reba
System: The UNT Digital Library

Documentary Film: I Named Her Angel

Access: Use of this item is restricted to the UNT Community
Recent political developments in the world show us that different cultures need to know and understand each other better. Even though technological developments like the Internet, satellites, cable television and conglomeration of big media entities have made mass communication more effective and faster, we cannot easily say that these developments help to bring world cultures together. As a result, mass audiences are not very much able to see what few productions do speak to these issues in a constructive manner. The main aim of this documentary film project is to serve as a small step towards helping different cultures to understand each other better. This documentary film conveys the basics of Mevlevism by following the formal gatherings of a Mevlevi den in Istanbul, Turkey. A den or tekke is a place where Islamic people gather and perform their religious activities. During these gatherings they do the sema, they pray, they listen to music, and they discuss spiritual matters. Sema is the entire ritual they perform as part of their ceremonies including listening to music, singing and chanting to attain a state of religious emotion and ecstasy or vecd. The documentary film is structured around a twelve year old girl, Elif, …
Date: May 2005
Creator: Dinc, Nefin
System: The UNT Digital Library

Leadership preferences of a Generation Y cohort: A mixed methods study.

Access: Use of this item is restricted to the UNT Community
Presently there are four generational cohorts in the workplace. Born from 1977 to 1997, the youngest cohort group, referred to as Generation Y (or Gen Y) in this study, has 81 million members, of whom over 29 million are already in the workplace. The importance of leader-subordinate relationships in the workplace has been confirmed; in recognizing this, leaders must identify and adapt to the changing era-shaped needs of employees, who cannot fully participate in organizational life if their most urgent needs are not being met. Because Gen Y employees are only now entering the workforce, little is actually known about the workplace needs of this cohort group. This study attempted to determine leadership needs of a Gen Y cohort as a means to enhance workplace relationships in the 21st century organization. A sequential, mixed methods study was employed to explore leadership preferences of a Gen Y cohort. Initially, focus group interviews were used to generate leadership themes. Based on these themes, an instrument was designed, and Gen Y business students from three higher education institutions were surveyed. Confirmatory factor analysis using LISREL software was used to test the themes. The driving force behind this research design was to build a …
Date: May 2005
Creator: Dulin, Linda
System: The UNT Digital Library

Stories: Spain, Lovers and Crazy Old Ladies

Access: Use of this item is restricted to the UNT Community
Stories: Spain, Lovers and Crazy Old Ladies is a collection of short stories about relationships, traumas, memories and change.
Date: May 2005
Creator: Franco, Sally
System: The UNT Digital Library

Lone Star under the Rising Sun: Texas's "Lost Battalion," 2nd Battalion, 131st Field Artillery Regiment, During World War II

Access: Use of this item is restricted to the UNT Community
In March 1942, the 2nd Battalion, 131st Field Artillery Regiment, 36th Division, surrendered to the Japanese Imperial Army on Java in the Dutch East Indies. Shortly after the surrender, the men of the 2nd Battalion were joined as prisoners-of-war by the sailors and Marines who survived the sinking of the heavy cruiser USS Houston. From March 1942 until the end of World War II, these men lived in various Japanese prison camps throughout the Dutch East Indies, Southeast Asia, and in the Japanese home islands. Forced to labor for their captors for the duration of the conflict, they performed extremely difficult tasks, including working in industrial plants and mining coal in Japan, and most notably, constructing the infamous Burma-Thailand Death Railway. During their three-and-one-half years of captivity, these prisoners experienced brutality at the hands of the Japanese. Enduring prolonged malnutrition and extreme overwork, they suffered from numerous tropical and dietary diseases while receiving almost no medical care. Each day, these men lived in fear of being beaten and tortured, and for months at a time they witnessed the agonizing deaths of their friends and countrymen. In spite of the conditions they faced, most survived to return to the United States …
Date: May 2005
Creator: Crager, Kelly Eugene
System: The UNT Digital Library

Challenges Encountered During Law Enforcement Investigations of Terrorist Use of Information Technology.

Access: Use of this item is restricted to the UNT Community
The late 20th and early 21st centuries have seen a phenomenal growth in society's use of information technology. Criminals, including terrorists and terrorist organizations, have also adopted information technologies. Information technologies are used to enhance the efficiency, productivity, and effectiveness of terrorist activities and offenses. Investigating terrorist use of information technologies creates a number of challenges for law enforcement officials. While some of the challenges are encountered during conventional criminal investigations, terrorist investigations also present unique challenges. Through content and typological analysis, this study examined open source information to identify, categorize and propose a model of these challenges. Four primary categories were identified: technology, methodology, legal, and administration and human resources challenges.
Date: May 2005
Creator: Morgan, Deanne
System: The UNT Digital Library

The relationships between multi-dimensional sociometric status and selected performance variables for counselors in training from 1991-2004.

Access: Use of this item is restricted to the UNT Community
The relationships between sociometric status and selected performance variables for counselors in training were investigated. Gender differences in sociometric status were also investigated. Research participants were master's level counseling students. The point-biserial correlation coefficient was used to determine the relationship between sociometric status and grades. The SPSS 13.0 crosstabulation procedure was used to examine gender differences in sociometric status. The results indicated a moderate relationship between sociometric status and grades earned in a group counseling course. A small to negligible relationship between sociometric status and pre-practicum and practicum grades was found. No gender difference in sociometric status was found. The study provides some support for the use of sociometric measurements in predicting group counseling performance, but more research is needed.
Date: May 2005
Creator: Overton, Christian C.
System: The UNT Digital Library

Molecular and biochemical characterization of phospholipase D in cotton (Gossypium hirsutum L) seedlings.

Access: Use of this item is restricted to the UNT Community
N-Acylethanolamines (NAEs) are enriched in seed-derived tissues and are believed to be formed from the membrane phospholipid, N-acylphosphatidylethanolamine (NAPE) via the action of phospholipase D (PLD). In an effort to identify a functional NAPE-PLD in cotton seeds and seedlings, we have screened a cotton seedling cDNA (cotyledon mRNA from 48 h dark grown seedlings) library with a 1.2 kb tobacco partial cDNA fragment encoding the middle third of a putative PLDβ/γ (genbank accession, AF195614) isoform. Six plaques were isolated from the Uni-ZAP lambda library, excised as pBluescript SK(-) phagemids and subjected to nucleotide sequence analysis. Alignment of derived sequences with Arabidopsis PLD family members indicated that the cDNAs represent six different PLD gene products -three putative PLD β isoforms and three putative PLD δ isoforms. The PLD β isoforms, designated Ghpldβ1a, GHpldβ1b and a truncated Ghpldβ1b isoform. Both the full-length PLD β proteins contained characteristic HKxxxxD catalytic domains, a PC-binding domain, a PIP2-binding domain and a C2 domain. In addition both cotton PLD β isoforms had a N-terminal "SPQY" rich domain which appeared to be unique to these PLDs. The three PLD δ isoforms, designated Ghpldδ1a, Ghpldδ1b and Ghpldδ1b-2 encode full-length PLDδ proteins, and like the above PLDs, contained the …
Date: May 2005
Creator: McHugh, John
System: The UNT Digital Library

The Effect of an Electronic Evaluation Questionnaire Format on the Return Rate From Field Supervisors.

Access: Use of this item is restricted to the UNT Community
The purpose of this study was to examine the usefulness of electronic-based questionnaires as a tool to gather data from field supervisors in the medical profession at various military bases. The study compared the response effects of an electronic evaluation questionnaire with the traditional method of paper-based questionnaires in gathering Level 3 data. The number of returns affects the amount of information available to the course personnel in creating a viable program that ensures the success of service members entering the occupational field and, ultimately, affecting the number of service members who remain beyond their first enlistment. The return rate and amount of missing data were tracked. Supervisors of graduates of a medical program who had observed service members for a minimum of 4-months were participants in the study. The z-test for comparing two proportions was used to determine significance of the study at the .05 level. Findings indicate that there was a significant difference in return rates and the amount of missing data when using the electronic format. Based on this study, the electronic-based questionnaire as a data-gathering tool provided a higher number of returns in a quicker time frame with fewer missing data in the technical training environment. …
Date: May 2005
Creator: Pineau, Deborah M.
System: The UNT Digital Library

Procedural content creation and technologies for 3D graphics applications and games.

Access: Use of this item is restricted to the UNT Community
The recent transformation of consumer graphics (CG) cards into powerful 3D rendering processors is due in large measure to the success of game developers in delivering mass market entertainment software that feature highly immersive and captivating virtual environments. Despite this success, 3D CG application development is becoming increasingly handicapped by the inability of traditional content creation methods to keep up with the demand for content. The term content is used here to refer to any data operated on by application code that is meant for viewing, including 3D models, textures, animation sequences and maps or other data-intensive descriptions of virtual environments. Traditionally, content has been handcrafted by humans. A serious problem facing the interactive graphics software development community is how to increase the rate at which content can be produced to keep up with the increasingly rapid pace at which software for interactive applications can now be developed. Research addressing this problem centers around procedural content creation systems. By moving away from purely human content creation toward systems in which humans play a substantially less time-intensive but no less creative part in the process, procedural content creation opens new doors. From a qualitative standpoint, these types of systems will not …
Date: May 2005
Creator: Roden, Timothy E.
System: The UNT Digital Library

The Constitutionality of Dress Code and Uniform Policies

Access: Use of this item is restricted to the UNT Community
This dissertation proposes to delineate the criteria for determining the constitutionality of public school dress codes based on an examination of relevant case law. The study addresses the following underlying questions: (1) Do students have a constitutional right to freedom of choice regarding their personal dress and grooming in public schools? (2) If so, what is the origin of the right? (3) What justification does a school district need in order to intrude upon the right? (4) Does the extent to which there is a right, and that it is accorded support by the judiciary, depend on the student's age and grade level? (5) What do state statutes say about dress codes and uniforms? (6) Do state statutes comport with the circuit courts' rulings in the various jurisdictions? The first part of Chapter I examines the purpose of school uniforms as set forth in relevant educational literature and commentary. The second part of the chapter examines empirical evidence on the effects of dress codes and uniforms. Chapter II addresses the first three questions listed above concerning students' right to choice in personal dress, the origins of such a right, and the justification required for a school to intrude upon this …
Date: May 2005
Creator: Stromberger, Joanne
System: The UNT Digital Library

Treadmill validation of the Siconolfi step test.

Access: Use of this item is restricted to the UNT Community
Maximal oxygen uptake (VO2max) is the internationally recognized measure of a person's cardiorespiratory fitness. Currently the most accurate way of assessing one's true VO2max involves the use of maximal exercise tests, which require the use of specialized equipment, and are time consuming and costly. The purpose of this study was to determine the validity of the submaximal Siconolfi step test to estimate VO2max. A second purpose was to determine if body fat percentage improved the validity. Thirty-six individuals underwent a maximal treadmill test, in which VO2max was directly measured, and the step test. Results indicate that, although VO2max estimates generated by the Siconolfi step test are highly correlated to true VO2max (r =.887; p<.01), the values consistently underestimated a person's aerobic fitness. It was also determined that body fat percentage did not contribute to the prediction of VO2max.
Date: May 2005
Creator: Harkrider,Tiffani L.
System: The UNT Digital Library

Functionalization and characterization of porous low-κ dielectrics.

Access: Use of this item is restricted to the UNT Community
The incorporation of fluorine into SiO2 has been shown to reduce the dielectric constant of the existing materials by reducing the electrical polarizability. However, the incorporation of fluorine has also been shown to decrease film stability. Therefore, new efforts have been made to find different ways to further decrease the relative dielectric constant value of the existing low-k materials. One way to reduce the dielectric constant is by decreasing its density. This reduces the amount of polarizable materials. A good approach is increasing porosity of the film. Recently, fluorinated silica xerogel films have been identified as potential candidates for applications such as interlayer dielectric materials in CMOS technology. In addition to their low dielectric constants, these films present properties such as low refractive indices, low thermal conductivities, and high surface areas. Another approach to lower k is incorporating lighter atoms such as hydrogen or carbon. Silsesquioxane based materials are among them. However, additional integration issues such as damage to these materials caused by plasma etch, plasma ash, and wet etch processes are yet to be overcome. This dissertation reports the effects of triethoxyfluorosilane-based (TEFS) xerogel films when reacted with silylation agents. TEFS films were employed because they form robust silica …
Date: May 2005
Creator: Orozco-Teran, Rosa Amelia
System: The UNT Digital Library

Piano Concerto No. 4 in D Minor, Op. 70 by Anton Rubinstein: An analytical and historical study.

Access: Use of this item is restricted to the UNT Community
Anton Rubinstein was primarily recognized as one of the greatest pianists of his time. However, Rubinstein yearned for recognition as a composer and worked prodigiously to realize that goal. Unfortunately, Rubinstein's works were virtually unknown today. One of Rubinstein's finest compositions, the Piano Concerto in D Minor, op. 70 has been the most frequently performed. It is one of the first "Russian" concertos that was written by a Russian composer, and was performed in Russian concert halls instead of the homes of Russian aristocracy. It is also considered the most successful and harmonious convergent of various musical styles which influenced Rubinstein. However, there is no formal, detailed analysis of the Concerto in the entire music literature. Therefore, the main purpose of this dissertation is to provide a thorough study of the Concerto from an analytical and historical standpoint. Rubinstein was also one of the most eminent educators in Russia. The St. Petersburg Conservatory of Music, which Rubinstein helped found in 1862, has to this day produced some of the most influential musicians in Russia. The other purpose of this dissertation is to evaluate Rubinstein's role as music educator. An overview of Rubinstein's works for piano and orchestra offers a general …
Date: May 2005
Creator: Peevey, Pui-King Cecilia
System: The UNT Digital Library

Nodal Resistance Measurement System

Access: Use of this item is restricted to the UNT Community
The latest development in the measurement techniques has resulted in fast improvements in the instruments used for measurement of various electrical quantities. A common problem in such instruments is the automation of acquiring, retrieving and controlling the measurements by a computer or a laptop. In this study, nodal resistance measurement (NRM) system is developed to solve the above problem. The purpose of this study is to design and develop a compact electronic board, which measures electrical resistance, and a computer or a laptop controls the board. For the above purpose, surface nodal points are created on the surface of the sample electrically conductive material. The nodal points are connected to the compact electronic board and this board is connected to the computer. The user selects the nodal points, from the computer, between which the NRM system measures the electrical resistance and displays the measured quantity on the computer.
Date: May 2005
Creator: Putta, Sunil Kumar
System: The UNT Digital Library

Meta-Parenting in Parents of Infants and Toddlers

Access: Use of this item is restricted to the UNT Community
Meta-parenting, defined as parents thinking about their parenting, has been identified and is a new field of research. The purposes of this study were to add to the existing knowledge of meta-parenting and to compare the influences of gender, work status, and parenting experience on meta-parenting occurring in parents of infants and toddlers. Sixty parents participated either electronically or by completing a written survey and reported engaging from "sometimes" to "usually" in four domains of meta-parenting: anticipating, assessing, reflecting, and problem-solving. Gender, work status, and parenting experience did not significantly influence participants' meta-parenting scores. Parents were found to have a higher sense of satisfaction and overall sense of competence when they engaged in higher levels of meta-parenting.
Date: May 2005
Creator: Vlach, Jennifer L.
System: The UNT Digital Library

Characterization of Infection Arrest Mutants of Medicago Truncatula and Genetic Mapping of Their Respective Genes.

Access: Use of this item is restricted to the UNT Community
In response to compatible rhizobia, leguminous plants develop unique plant organs, root nodules, in which rhizobia fix nitrogen into ammonia. During nodule invasion, the rhizobia gain access to newly divided cells, the nodule primordia, in the root inner cortex through plant-derived cellulose tubes called infection threads. Infection threads begin in curled root hairs and bring rhizobia into the root crossing several cell layers in the process. Ultimately the rhizobia are deposited within nodule primordium cells through a process resembling endocytosis. Plant host mechanisms underlying the formation and regulation of the invasion process are not understood. To identify and clone plant genes required for nodule invasion, recent efforts have focused on Medicago truncatula. In a collaborative effort the nodulation defect in the lin (lumpy infections) mutant was characterized. From an EMS-mutagenized population of M. truncatula, two non-allelic mutants nip (numerous infections with polyphenolics) and sli (sluggish infections) were identified with defects in nodule invasion. Infection threads were found to proliferate abnormally in the nip mutant nodules with only very rare deposition of rhizobia within plant host cells. nip nodules were found to accumulate polyphenolic compounds, indicative of a host defense response. Interestingly, nip was also found to have defective lateral root …
Date: May 2005
Creator: Veereshlingam, Harita
System: The UNT Digital Library

The structure and function of troponin T upon metal ion binding and the detection of nucleic acid sequence variations.

Access: Use of this item is restricted to the UNT Community
Numerous troponin T (TnT) isoforms are generated by alternative RNA splicing primarily in its NH2-terminal hypervariable region, but the functions of these isoforms are not completely understood. In this dissertation work, calcium and terbium binding behavior of several forms of TnT were investigated by spectroscopic and radioactive techniques. Chicken breast muscle TnT binds calcium and terbium through its NH2-terminal Tx motif (HEEAH)n with high affinity (10-6 mM) and fast on-rate (106 - 107 M-1 s-1). Chicken leg muscle TnT and a human cardiac TnT NH2-terminal fragment, which both lack the Tx motif on their NH2-terminal regions, do not have affinities for calcium in the physiological range. Computational predictions on TnT N47 suggest that the TnT NH2-terminal region might fold into an elongated structure with at least one high affinity metal ion binding pocket comprised primarily of the Tx motif sequence and several lower affinity binding sites. In addition, calcium binding to TnT N47 might alter its conformation and flexibility. Luminescence resonance energy transfer measurements and other experimental observations are consistent with the computational predictions suggesting the computational simulated atomic model is reasonable. TnT mutations are responsible for 15% of familiar hypertrophic cardiomyopathy (FHC) cases with a phenotype of relatively mild …
Date: May 2005
Creator: Zhang, Zhiling
System: The UNT Digital Library