UNT Theses and Dissertations - 366 Matching Results

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Atomistic Studies of Point Defect Migration Rates in the Iron-Chromium System

Description: Generation and migration of helium and other point defects under irradiation causes ferritic steels based on the Fe-Cr system to age and fail. This is motivation to study point defect migration and the He equation of state using atomistic simulations due to the steels' use in future reactors. A new potential for the Fe-Cr-He system developed by collaborators at the Lawrence Livermore National Laboratory was validated using published experimental data. The results for the He equation of state ag… more
Date: August 2010
Creator: Hetherly, Jeffery
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Attenuation of the Squared Canonical Correlation Coefficient Under Varying Estimates of Score Reliability

Description: Research pertaining to the distortion of the squared canonical correlation coefficient has traditionally been limited to the effects of sampling error and associated correction formulas. The purpose of this study was to compare the degree of attenuation of the squared canonical correlation coefficient under varying conditions of score reliability. Monte Carlo simulation methodology was used to fulfill the purpose of this study. Initially, data populations with various manipulated conditions wer… more
Date: August 2010
Creator: Wilson, Celia M.
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The Avatar by Steve Rouse: A Performance Practice Guide

Description: The Avatar for trumpet and piano by Dr. Steve Rouse is one of the most challenging compositions in the trumpet repertoire. Due to The Avatar's challenges and increasing popularity, a study is necessary to aid its performance. Each movement is performed on a different instrument: Bb piccolo (with an optional A piccolo part) for Nativity, Bb Flugelhorn for Enigma-Release and Bb trumpet for Rebirth. In addition, the performer must convey one of the work's possible programmatic meanings: (1) Th… more
Date: August 2010
Creator: Lynn, Mark J.
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Bad Blood: Impurity and Danger in the Early Modern Spanish Mentality

Description: The current work is an intellectual history of how blood permeated early modern Spaniards' conceptions of morality and purity. This paper examines Spanish intellectuals' references to blood in their medical, theological, demonological, and historical works. Through these excerpts, this thesis demonstrates how this language of blood played a role in buttressing the church's conception of good morals. This, in turn, will show that blood was used as a way to persecute Jews and Muslims, and ultimat… more
Date: August 2010
Creator: Pyle, Rhonda
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Baptist Pastoral Leadership: An Analysis for Curriculum Development

Description: Through a qualitative study utilizing in-depth interviews, practitioner opinion was gathered regarding how Christian institutions of higher education, primarily Baptist seminaries, may better utilize formal and continuing education to prepare clergy for pastoral leadership. The sample of ten subjects for this study, drawn from the 550 active senior pastors in the Dallas Baptist Association and the Kauf-Van Baptist Association, was selected based on a maximum variation sampling method. The inten… more
Date: August 2010
Creator: Christine, David Wayne
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Baseball in the Digital Age: The Role of Online and Mobile Content in Major League Baseball's Media Product Portfolio

Description: This case study evaluated Major League Baseball's (MLB) media product portfolio to identify how broadcast revenues have evolved over the past decade. This research looked back across baseball's long, dysfunctional history with broadcasters in order to recognize the significance of its ambitious use of online content. While MLB had failed to fully utilize the potential of broadcasting, the league's aggressive online strategy through its Advanced Media (MLBAM) division made it the industry leader… more
Date: December 2010
Creator: Hutton, Brian P.
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"Being" a Stickist: A Phenomenological Consideration of "Dwelling" in a Virtual Music Scene

Description: Musical instruments are not static, unchanging objects. They are, instead, things that materially evolve in symmetry with human practices. Alterations to an instrument's design often attend to its ergonomic or expressive capacity, but sometimes an innovator causes an entirely new instrument to arise. One such instrument is the Chapman Stick. This instrument's history is closely intertwined with global currents that have evolved into virtual, online scenes. Virtuality obfuscates embodiment, but … more
Date: May 2010
Creator: Hodges, Jeff
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Benefits and Costs of Social Interactions Among Firefighters

Description: Despite high levels of exposure, firefighter posttraumatic stress disorder (PTSD) rates are unclear. Likewise, questions remain regarding how social interactions and beliefs about emotion might interact to influence PTSD in firefighters. In this study, U.S. urban firefighters (N = 225) completed measures of social support, negative social interactions, and fear of emotion which were then used via regression analyses to predict PTSD symptoms. Each independent variable predicted PTSD beyond varia… more
Date: December 2010
Creator: Farnsworth, Jacob
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Breaking Accidental Behavior Chains.

Description: Accidental behavior chains are a common problem in dog training. Many handlers inadvertently reinforce undesirable behaviors. The behavior analytic literature already contains articles describing methods of breaking chains; however, those methods either are not used in dog training for practical purposes or are ineffective in dog training. This experiment investigated two ways to break a behavior chain, including extending the chain and introducing a delay into the chain. The results of extendi… more
Date: May 2010
Creator: McKnight, Debra Gayle
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A-Bu-GE: A Composition for Organ and Percussion

Description: Keyphrases describe a document in a coherent and simple way, giving the prospective reader a way to quickly determine whether the document satisfies their information needs. The pervasion of huge amount of information on Web, with only a small amount of documents have keyphrases extracted, there is a definite need to discover automatic keyphrase extraction systems. Typically, a document written by human develops around one or more general concepts or sub-concepts. These concepts or sub-concepts… more
Date: December 2010
Creator: Kim, Chol-Ho
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Business Intelligence Success: An Empirical Evaluation of the Role of BI Capabilities and the Decision Environment

Description: Since the concept of business intelligence (BI) was introduced in the late 1980s, many organizations have implemented BI to improve performance but not all BI initiatives have been successful. Practitioners and academicians have discussed the reasons for success and failure, yet, a consistent picture about how to achieve BI success has not yet emerged. The purpose of this dissertation is to help fill the gap in research and provide a better understanding of BI success by examining the impact of… more
Date: August 2010
Creator: Işik, Öykü
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Can These Bones Live? A Collection of Stories

Description: The collection concerns itself with race, gender, masculinity, marginalization, the act of violence as a means of self expression, identity and the performance of identity, love, and loss. The collection also uses historical events-more specifically, events that are central to black culture in Northeast, Ohio- to situate the characters and witness their response to these historical events. I strive to illustrate blackness as both political and fragmented with the characters in my collection. M… more
Date: May 2010
Creator: Hoey, Danny M., Jr.
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Carrier Mobility, Charge Trapping Effects on the Efficiency of Heavily Doped Organic Light-Emitting Diodes, and EU(lll) Based Red OLEDs

Description: Transient electroluminescence (EL) was used to measure the onset of emission delay in OLEDs based on transition metal, phosphorescent bis[3,5-bis(2-pyridyl)-1,2,4-triazolato] platinum(ΙΙ) and rare earth, phosphorescent Eu(hfa)3 with 4'-(p-tolyl)-2,2":6',2" terpyridine (ttrpy) doped into 4,4'-bis(carbazol-9-yl) triphenylamine (CBP), from which the carrier mobility was determined. For the Pt(ptp)2 doped CBP films in OLEDs with the structure: ITO/NPB (40nm)/mcp (10nm)/65% Pt(ptp)2:CBP (2… more
Date: August 2010
Creator: Lin, Ming-Te
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A Case Study of the Impact of the Middle School Data Coach on Teacher Use of Educational Test Data to Change Instruction

Description: With the advent of No Child Left Behind (NCLB) legislation in 2002 and its attendant increases in accountability pressure, many districts and schools currently embrace data analysis as an essential part of the instructional decision making process. In their attempts to overcome low achievement on state-mandated tests, some districts have begun employing data coaches. The study reported here, which was set in three middle schools in a northeast Texas school district, assessed the influence of th… more
Date: December 2010
Creator: Hill, Rachelle Phelps
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A Case Study of Undergraduate Course Syllabi in Taiwan

Description: Higher education in Taiwan has been influenced by U.S. and Western practices, and syllabi represent one means to verify this. However, limited research exists in Taiwan on course syllabi and on similarities of syllabi with practices in other countries. In the U.S. as the paradigm shifted from teaching to learning and to the learning-centered context, scholars argued that syllabi should be learning-centered. Given the assumption that higher education in Taiwan is similar to U.S. higher education… more
Date: May 2010
Creator: Tung, Yao-Tsu
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The Changing Role and Responsibilities of Audit Committees in the United States

Description: The corporate form that developed in the early 20th century created enormous pressure for corporate governance mechanisms to curb the power of corporate managers. Berle and Means, legal pluralists, warned about concentrating economic power in the hands of a small but powerful class of professional managers. They claimed this "new form of absolutism" required governmental oversight and viewed boards of directors as part of management, rather than monitors for shareholders. The Securities and Exc… more
Date: August 2010
Creator: Teed, Dan Graham
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The Characteristics of a Community of Practice in a National Writing Project Invitational Summer Institute

Description: This qualitative naturalistic descriptive case study provides an understanding of the characteristics of a community of practice within a National Writing Project Invitational Summer Institute. This study utilized naturalistic, descriptive case study methodology to answer the research question: What characteristics of a community of practice are revealed by the perceptions and experiences of the fellows of a National Writing Project Invitational Summer Institute? Data were gathered in the form… more
Date: May 2010
Creator: Pearce, Terisa Ronette
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Characterizing Noise and Harmonicity: The Structural Function of Contrasting Sonic Components in Electronic Composition

Description: This dissertation examines the role of noise in shaping the form of several recent musical compositions. This study demonstrates how the contrast of noisy sounds and harmonic sounds can impact the structure of compositions. Depending on context, however, the specific use and function of noise can vary substantially from one work to the next. The first portion of this paper describes methods for quantifying noise content using FFT analysis procedures. A number of tests on instrumental and synthe… more
Date: May 2010
Creator: Dribus, John Alexander
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Child-Parent Relationship Therapy (CPRT) with Adoptive Families: Effects on Child Behavior, Parent-Child Relationship Stress, and Parental Empathy

Description: This randomized controlled study is a preliminary investigation on the effects of Child-Parent Relationship Therapy (CPRT) with 61 adoptive parents. The participants in this study identified themselves as the following: 54 European American, 3 Black American, 3 Hispanic/Latino, and 1 individual who chose not to indicate ethnicity. The study included 23 couples and 15 individual mothers. The CPRT is a structured, time limited approach that trains caregivers to be an active participant as a the… more
Date: May 2010
Creator: Carnes-Holt, Kara
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Chirped-Pulse Fourier Transform Microwave Spectroscopy of Fluoroiodoacetonitrile and Chloropentafluoroacetone

Description: This work focuses on finding the complete iodine and nitrogen nuclear electric quadrupole coupling tensors for fluoroiodoacetonitrile using chirped-pulse Fourier transform microwave spectroscopy. Fluoroiodoacetonitrile contains two hyperfine nuclei, iodine (I=5/2) and nitrogen (I=1) and the spectra were observed with great resolution. A total of 499 transitions were observed for this molecule. The a, b and c rotational constants were obtained. A study of chloropentafluoroacetone was also done u… more
Date: December 2010
Creator: Kadiwar, Gautam
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A Chorus of Trees

Description: This two-part thesis includes a critical preface and a collection of my poems. Using three poems-Louise Glück's "Lullaby," Bob Hicok's "Poem for My Mother's Hysterectomy," and Nick Flynn's "Memento Mori"-the critical preface examines how, in poetry, the transformation of a body negotiates trauma and triggers a conceptual shift, the creation and revision of identity, and the release of the duende's inspirational force. The collection of poetry that follows seeks to transfigure the body as a way … more
Date: August 2010
Creator: Lyons, Renée Kathleen
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The Cimbasso and Tuba in the Operatic Works of Giuseppe Verdi: A Pedagogical and Aesthetic Comparison

Description: In recent years, the use of the cimbasso has gained popularity in Giuseppe Verdi opera performances throughout the world. In the past, the tuba or the bass trombone was used regularly instead of the cimbasso because less regard was given to what Verdi may have intended. Today, one expects more attention to historical precedent, which is evident in many contemporary Verdi opera performances. However, the tuba continues to be used commonly in performances of Verdi opera productions throughout the… more
Date: August 2010
Creator: Costantino, Alexander
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Cold-Formed Steel Bolted Connections Using Oversized and Slotted Holes without Washers

Description: In cold-formed steel (CFS) construction, bolted connections without washers for either oversized or slotted holes may significantly expedite the installation process and lower the cost. However, the North American Specification (AISI S100, 2007) for the Design of Cold-Formed Steel Structural Members requires washers to be installed in bolted connections with oversized or slotted holes. A research project (Phase 1) sponsored by American Iron and Steel Institute (AISI) was recently completed at t… more
Date: August 2010
Creator: Xu, Ke
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A Collaborative Affair: The Building of Museum and School Partnerships

Description: This study examined two art museum and school partnerships in order to learn how partnerships enable an integration of goals, participants' beliefs and values, and learning objectives. This study examined the partnerships through a social constructivist lens and used narrative analysis as way to interpret participants' stories about collaboration. The research found three major themes among participants' stories. Participants: a) valued good communication to establish relationships between part… more
Date: August 2010
Creator: Yount, Katherine
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Partner: UNT Libraries
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