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Who Makes the Decision? Managerial Influence on Corporate Boards and Auditor Selection, Change, and Compensation (open access)

Who Makes the Decision? Managerial Influence on Corporate Boards and Auditor Selection, Change, and Compensation

This dissertation examines whether managers influence corporate boards of directors in their auditor selection, change, and compensation decisions. This topic is important because it addresses concerns that the Sarbanes-Oxley Act of 2002 (SOX) is not effective in eliminating managerial influence over auditor engagement decisions and that it may provide a false sense of security to investors. These concerns are based on the implicit assumption that managers prefer weaker governance oversight and lower audit quality. However, empirical research testing associations between managerial influence and audit-related decisions post-SOX is scarce and generally guided by agency theory. Incorporating agency, stewardship, and resource dependence perspectives, I find that managerial preferences for auditor selection are not aligned. Specifically, CEOs positively influence the selection of higher quality auditors, whereas CFOs have the opposite effect. Further, CEOs who hold powerful roles as chairs of their companies' boards of directors appear to mitigate the negative influence of CFOs and inside directors on audit quality. CEOs serving in dual roles also oppose auditor turnover when lower earnings quality prompt higher demand for audit effort. Finally, my study provides some evidence that management exercises downward pressures on audit fees, suggesting that managers utilize their authority beyond the regulations established by …
Date: August 2020
Creator: Hightower, Sonja
System: The UNT Digital Library
A Dream Deferred: Suicide and Self Harm in Middle America (open access)

A Dream Deferred: Suicide and Self Harm in Middle America

Middle America is dying. The United Nations reports the average number of deaths per 1,00 population in the U.S. has steadily increased an average of 1.2 per 1,000 persons annually since 2015. Existing research offer conflicting theories regarding the factors influencing the phenomenon. the purpose of this study was to examine reliable and valid secondary data to determine if statistical evidence exists to support the prevailing theories. Statistical evidence was observed that suggests the crude death rates among U.S. non-Hispanic white (NHWs) populations was significantly higher than other U.S. population segments between 2015 and 2018. Statistical evidence was also observed that suggests U.S. NHWs sought ambulatory services for alcohol and drug use self-injuries at higher rates than other U.S. population segments. However, the evidence suggest that U.S. NHWs are not more likely to experience earlier than expected deaths from excessive alcohol or drug use than other U.S. population segments. The study's implications are that U.S. policy makers should consider long-term economic development and sustainability strategies focused on the promotion of higher education as a deterrent to self-harm among U.S. residents without college degrees or skills certifications. The study recommends future large-scale quantitative, qualitative, and mixed-use studies that examine the micro, …
Date: August 2020
Creator: Johnson, Jennie Larry
System: The UNT Digital Library
Anxiety Sensitivity and Nonmedical Prescription Drug Use among Adolescents (open access)

Anxiety Sensitivity and Nonmedical Prescription Drug Use among Adolescents

Research suggests that non-medical prescription drug (NMPD) use is becoming increasingly prevalent, particularly among adolescents. A critical step towards developing effective intervention efforts requires identifying adolescents who are at risk for NMPD use. An extensive literature suggests that both adolescents and adults with elevated anxiety sensitivity (AS) are at greater risk for problematic substance use, and a small body of work has identified similar links with NMPD use specifically among adults. However, most of this literature combines all prescription drugs into a single category, and no work has evaluated the relation between AS and NMPD use among adolescents. The current study endeavors to further this area of research by examining the relation between AS (overall and subscales) and NMPD use among adolescents. The project evaluated 276 adolescents (age 9-19 years) enrolled in a residential treatment program on level of AS, including sub-dimensions (i.e., cognitive, physical, and social), and NMPD use across three categories of drugs: analgesic (e.g., Vicodin®), anxiolytic (e.g., Xanax®), and stimulant (e.g., Adderall®). A series of logistic regression models indicated that overall AS predicted nonmedical analgesic use, but not anxiolytic/sedative or stimulant use. A closer investigation of the AS subscales demonstrated that only the AS social subscale significantly …
Date: August 2020
Creator: Carey, Caitlyn
System: The UNT Digital Library
Comparative Resistomics of Ancient and Modern Human Microbiomes (open access)

Comparative Resistomics of Ancient and Modern Human Microbiomes

Increased exposure to antibiotics has led to the dissemination of genes conferring resistance to antimicrobial metabolites throughout human microbiomes globally via horizontal gene transfer (HGT). This has resulted in the emergence of new resistant strains leading to a rising epidemic of deaths from previously treatable infections. Evidence suggests that before the age of anthropogenic antibiotic use, microbes living within a community produced antibiotic metabolites and, subsequently, maintained such genes for several useful functions and a balance of diversity in nature. The question of the origin of these resistant genes is difficult to answer, but with continued advancements in ancient genomic analysis, researchers have developed methods of acquiring a more accurate representation of the microbiome associated with our human ancestors by extracting fossilized microbial specimens from dental calculus and directly sequencing the metagenomes. This thesis outlines the production of taxonomic and functional profiles of 20 different human and non-human oral microbiome samples using metagenomics tools originally developed for living individuals, altered for use with ancient microbial specimens. Putative antimicrobial resistant (AMR) genes derived from these profiles were reconstructed and conserved functional regions were identified. From the data that is available regarding the human microbiome from a range of time points throughout …
Date: August 2020
Creator: Johnson, Sarah
System: The UNT Digital Library
Bridging the Gap: Introducing Extended Techniques and Contemporary Notation through Newly Composed Etudes for Clarinet (open access)

Bridging the Gap: Introducing Extended Techniques and Contemporary Notation through Newly Composed Etudes for Clarinet

This dissertation aims to address the pedagogical gap in introductory material for contemporary clarinet instruction. Through examining the most prominent contemporary methods for the clarinet, the pedagogical gap is highlighted, particularly regarding material aimed at newcomers and early undergraduate students. To address these needs, a new collection of etudes is proposed, introducing extended techniques and contemporary notation for newcomers to modern music.
Date: May 2020
Creator: Ellard, Luke
System: The UNT Digital Library
An Investigation of Euphonium Valve System Design (open access)

An Investigation of Euphonium Valve System Design

The four-valve automatic compensating system as developed by David James Blaikley has become an integral part of the professional euphonium in use today. While the Blaikley system was designed to allow a euphonium to play chromatically down to the fundamental pitch of the instrument, it was hardly the only design to do so. Using a historical analysis of euphonium valve systems, the case is made for why Blaikley's design has been widely adopted in the face of criticism about the four-valve automatic compensating system. The analysis also clarifies the viability of Blaikley's, as well as others', euphonium valve system designs based upon the four factors of intonation, range, intuitiveness of use, and weight. These factors are further explored in a rubric in order to quantify the results of the analysis.
Date: May 2020
Creator: Watkins, Jonathan, 1986-
System: The UNT Digital Library
An Analysis of the Representation of Queen Elizabeth I of England in the Operas by Rossini, Donizetti, and Thomas in the Context of Nineteenth-Century Vocal Style and Historical Influence (open access)

An Analysis of the Representation of Queen Elizabeth I of England in the Operas by Rossini, Donizetti, and Thomas in the Context of Nineteenth-Century Vocal Style and Historical Influence

The purpose of this research is to analyze representations of Queen Elizabeth I of England in nineteenth-century Franco-Italian opera, and the relationship of these representations to contemporaneous singing style and the historical background. The basis for this analysis is three arias: "Quant'é grato all'alma mia" from Elisabetta, regina d'Inghilterra (1815) by Gioachino Rossini (1792-1868), "Sì, vuol di Francia il rege...Ah! quando all'ara scorgemi...Ah! dal ciel discenda un raggio" from Maria Stuarda (1835) by Gaetano Donizetti (1797-1848), and "Malgré l'éclat qui m'environne" from Le songe d'une nuit d'été (1850) by Ambroise Thomas (1811-1896). This research is divided into two main sections: the historical background of Italy and France in the nineteenth century, especially in the contemporaneous vocal style and fashions of literature; and a discussion of the composers' musical and dramatic choices for Queen Elizabeth I in the three selected arias. Chapter 2 is a brief introduction to the early nineteenth-century Franco-Italian historical background, vocal style, and popular literature. Chapter 3 presents an analysis of the three arias. The last chapter summarizes the representations of Elizabeth I in nineteenth-century politics, literature, and vocal style.
Date: August 2020
Creator: Hsiao, Han
System: The UNT Digital Library
The Influence of Police Training on Law Enforcement Officers Occupational Identity in an Evolving Police Culture (open access)

The Influence of Police Training on Law Enforcement Officers Occupational Identity in an Evolving Police Culture

The disproportionate number of police-involved shootings reflect the underlying conditions of traditionally conservative, racist policing. Recent updates and communication refinements to police training methodologies could improve training processes, which in turn, may improve societal perceptions of police in the United States. Law enforcement officers in the United States have become the focus of public policy outcry and generalized distrust, further complicating the dangers of contemporary policing. Concealed weapons and the close proximity of civilians policing the police with cellphone cameras complicate issues of officer safety. State and national incidents have resulted in police processes and behaviors being broadcast and violently challenged. In response to these challenges, Texas police academies and law enforcement training agencies are changing the way police learn to police. During the preparation of this study, the Texas Commission on Law Enforcement adopted a legislatively mandated update to the Basic Peace Officer Certification training. After a three-year revision process, in late 2019, the Texas Commission on Law Enforcement replaced the former 643-hour Basic Peace Officer Course with the newest Basic Peace Officer Course #1000696. Through its goals, definitions, and instructional guides, the Course #1000696 could potentially stimulate occupational identity, unify community policing culture, and foster community perception repair.
Date: August 2020
Creator: Fajardo, Ruth Noemi
System: The UNT Digital Library
Clementi the Scientist: Contemporary Reception of His Symphonies (open access)

Clementi the Scientist: Contemporary Reception of His Symphonies

Muzio Clementi's symphonies were first performed in London between 1786 and 1796. After an extended hiatus from 1796 to 1813, his symphonic works appeared on programs again from 1813 to 1824. Clementi's career as a symphonist corresponds closely with trends in London's concert life. The reception of Clementi's symphonies during his lifetime has frequently been misinterpreted by scholars who oversimplify the use of "science" in musical discourse of the day and fail to consider the positive connotations of this adjective, so frequently applied to Clementi. Musical discourse at the time addressed the science and art of music emphasizing a composition, or its composer's, science, harmony, effects, genius, and the audience's response. Though an unstated ideal, reviews evince a preference for balancing scientific and artistic display. Reviews of Clementi's symphonies suggest he initially struggled to balance the technical and artistic qualities of his compositions but succeeded, according to reviews, in finally doing so in 1796. After his early efforts, Clementi was consistently praised as worthy to stand among the current and most prestigious composers of the continent: Haydn and Mozart initially, and Beethoven and Rossini later.
Date: August 2020
Creator: Asber, Joyce
System: The UNT Digital Library
Borrowing Culture: British Music Circulating Libraries and Domestic Musical Practice, 1853-1910 (open access)

Borrowing Culture: British Music Circulating Libraries and Domestic Musical Practice, 1853-1910

In Victorian Britain, music circulating libraries libraries operated by music publishers Novello & Co. and Augener & Co. supported upper- and upper-middle-class patrons in their pursuit of cultural capital that would help them perform their socioeconomic status. Studying these libraries in the context of domestic music-making reveals the economic and social impact of these libraries in the lives of amateur musicians and in the music publishing industry. An analysis of the account books in the Novello Business Archives demonstrates that the direct income that Novello & Co., Ltd.'s Universal Circulating Musical Library generated was negligible at best. Yet the fact that the library continued to be part of the business for over forty years indicates that Novello & Co., Ltd. found it to be profitable in some way. In this case, the library could have helped the publisher to attract customers through branding and advertising, in addition to informing publishing decisions by tracking demand. Catalogs for music circulating libraries, as well as for the publishers who owned them, contain lists of library and publisher inventory and pricing. Studying changes in these catalogs reveals how patrons' tastes changed over time. A case study of violin-piano duets in multiple catalogs confirms a …
Date: August 2020
Creator: Cooper, Amy Nicole
System: The UNT Digital Library
The Role of Eigenvalues of Parity Check Matrix in Low-Density Parity Check Codes (open access)

The Role of Eigenvalues of Parity Check Matrix in Low-Density Parity Check Codes

The new developments in coding theory research have revolutionized the application of coding to practical systems. Low-Density Parity Check (LDPC) codes form a class of Shannon limit approaching codes opted for digital communication systems that require high reliability. This thesis investigates the underlying relationship between the spectral properties of the parity check matrix and LDPC decoding convergence. The bit error rate of an LDPC code is plotted for the parity check matrix that has different Second Smallest Eigenvalue Modulus (SSEM) of its corresponding Laplacian matrix. It is found that for a given (n,k) LDPC code, large SSEM has better error floor performance than low SSEM. The value of SSEM decreases as the sparseness in a parity-check matrix is increased. It was also found from the simulation that long LDPC codes have better error floor performance than short codes. This thesis outlines an approach to analyze LDPC decoding based on the eigenvalue analysis of the corresponding parity check matrix.
Date: August 2020
Creator: Adhikari, Dikshya
System: The UNT Digital Library
Athletic Participation as a Protective Factor for Childhood Maltreatment (open access)

Athletic Participation as a Protective Factor for Childhood Maltreatment

The purpose of the study was to examine whether athletic participation as a child and/or adolescent acts as a protective factor for youth who endure childhood maltreatment. After screening for childhood maltreatment, our 269 participants were separated into either an athlete group or a non-athlete group and compared using two one-way multivariate analyses of covariance (MANCOVA). Emotional neglect served as the covariate due to non-athletes' significantly higher emotional neglect scores than athletes. The first MANCOVA compared athletes and non-athletes on positive outcomes, which included measures of post-traumatic growth, three adaptive coping strategies, and self-compassion. In the second MANCOVA, we assessed for differences between athletes and non-athletes on negative outcomes, which included measures of traumatic, depressive, and anxious symptomology and a maladaptive coping strategy. Neither MANCOVA reached significance, rejecting our hypothesis that athletes would be more resilient than non-athletes to the negative impact of childhood maltreatment. Discussion considers possible reasons for the lack of significance, such as the recency of athletic participation or the specific type of maltreatment experienced, as well as limitations and directions for future research.
Date: August 2020
Creator: Rushton, James R
System: The UNT Digital Library

Health Reform Implementation Analysis: A Guide to Policy Development for Geriatric Care Planning, Integration and Evaluation

In the context of health care delivery for senior citizens, this research utilizes three studies that examine the development and implementation of health policy and the factors that can directly or indirectly impact the effective delivery of health services to senior citizens. It utilizes three essays employing mixed methods (qualitative and quantitative) methods including semi structured interviews, multiple regression and partial least squares structural equation modelling to examine the extent to which the implementation of health services delivered attributes of primary and integrated care to seniors. The two essays identified methods, approaches and strategies of integrated care relevant to the development of policy that can be successfully implemented when the contextual issues that older people consider to be important in maintaining their functional capabilities and their motivation to improve health as perceived by them are addressed. Consequent upon the results from these studies, the third essay examines the methodological issues on integrated geriatric care implementation when guidelines for effective policy development identified were not followed. By highlighting the relationship between effective policy and patient satisfaction, these three essays' recommended approach enhances the theory of health design that confirms that theoretical models of primary care must incorporate the system, process and …
Date: August 2020
Creator: Abah, Theresa
System: The UNT Digital Library
Kriging Methods to Exploit Spatial Correlations of EEG Signals for Fast and Accurate Seizure Detection in the IoMT (open access)

Kriging Methods to Exploit Spatial Correlations of EEG Signals for Fast and Accurate Seizure Detection in the IoMT

Epileptic seizure presents a formidable threat to the life of its sufferers, leaving them unconscious within seconds of its onset. Having a mortality rate that is at least twice that of the general population, it is a true cause for concern which has gained ample attention from various research communities. About 800 million people in the world will have at least one seizure experience in their lifespan. Injuries sustained during a seizure crisis are one of the leading causes of death in epilepsy. These can be prevented by an early detection of seizure accompanied by a timely intervention mechanism. The research presented in this dissertation explores Kriging methods to exploit spatial correlations of electroencephalogram (EEG) Signals from the brain, for fast and accurate seizure detection in the Internet of Medical Things (IoMT) using edge computing paradigms, by modeling the brain as a three-dimensional spatial object, similar to a geographical panorama. This dissertation proposes basic, hierarchical and distributed Kriging models, with a deep neural network (DNN) wrapper in some instances. Experimental results from the models are highly promising for real-time seizure detection, with excellent performance in seizure detection latency and training time, as well as accuracy, sensitivity and specificity which compare …
Date: August 2020
Creator: Olokodana, Ibrahim Latunde
System: The UNT Digital Library
"Worlds Beyond": A Stylistic Analysis of Collage in the Music of Daniel Schnyder as a Universal Model for the Bass Trombone Repertoire (open access)

"Worlds Beyond": A Stylistic Analysis of Collage in the Music of Daniel Schnyder as a Universal Model for the Bass Trombone Repertoire

The modern trombone player can experience a variety of styles on any given day. There is a need for the ability to switch between a plethora of styles ranging from avant-garde pieces to many forms of popular music to masterworks of the symphonic repertoire. It is the responsibility of the musician (performer or educator) to be familiar with all music due to global access via the internet. There is a responsibility to properly perform and respect music as more composers are beginning to blend different styles, genres, idioms, and cultures within the same composition. Daniel Schnyder is a prominent continuation of this style of musical collage that began with composers such as George Rochberg, Luciano Berio, Bernd Alois Zimmermann, and Charles Ives. The goal of this project is to analyze the stylistic saturation of Daniel Schnyder's Worlds Beyond Suite, focusing on performance and stylistic analysis to aid in an informed performance. This project will highlight the flexibility required by modern trombonists to perform with a deeper understanding of music in multiple styles, as the blending, juxtaposing, and superimposition of style is the universal future of music.
Date: August 2020
Creator: Norton, Colby
System: The UNT Digital Library

Graded Hecke Algebras for the Symmetric Group in Positive Characteristic

Graded Hecke algebras are deformations of skew group algebras which arise from a group acting on a polynomial ring. Over fields of characteristic zero, these deformations have been studied in depth and include both symplectic reflection algebras and rational Cherednik algebras as examples. In Lusztig's graded affine Hecke algebras, the action of the group is deformed, but not the commutativity of the vectors. In Drinfeld's Hecke algebras, the commutativity of the vectors is deformed, but not the action of the group. Lusztig's algebras are all isomorphic to Drinfeld's algebras in the nonmodular setting. We find new deformations in the modular setting, i.e., when the characteristic of the underlying field divides the order of the group. We use Poincare-Birkhoff-Witt conditions to classify these deformations arising from the symmetric group acting on a polynomial ring in arbitrary characteristic, including the modular case.
Date: August 2020
Creator: Krawzik, Naomi
System: The UNT Digital Library
The Embarrassment Paradox: Encouraging Compensatory Consumption in Morality-Laden Contexts (open access)

The Embarrassment Paradox: Encouraging Compensatory Consumption in Morality-Laden Contexts

This research introduces the unique context of immoral inaction—situations in which consumers have the opportunity to engage in virtuous behaviors but opt against doing so. Through five studies I demonstrate that in such contexts, embarrassment—a negatively valenced self-conscious moral emotion evoked by the perception that one's behavior is worthy of judgment by others—interacts with the use of approach-motivated coping strategies to lead consumers to engage in prosocial compensatory behaviors. Though extant literature suggests that marketers seeking to evoke prosocial behaviors should employ communications and promotions framed to elicit consumers' guilt, such studies are based in contexts whereby individuals feel guilty and/or embarrassed because of something they have done, not for something they did not do. This research suggests that that the condition of immoral inaction serves to evoke a contrasting psychological mechanism that reverses these findings, making embarrassment a more effective driver of desired outcomes when marketers seek to promote overcoming past inactions. These findings are discussed in light of their implications for research and application.
Date: August 2020
Creator: Bennett, Andrea Rochelle
System: The UNT Digital Library
Adaptive Slot Location in the Design of Slotted Microstrip Multi-Frequency Antenna for Radionavigation and Radiolocation Applications (open access)

Adaptive Slot Location in the Design of Slotted Microstrip Multi-Frequency Antenna for Radionavigation and Radiolocation Applications

In light of incidents and concerns regarding the vulnerability of the global positioning system (GPS), the main purpose of the thesis is to look at alternative systems for radio guidance and to put up a serious study on such alternatives with receive and transmit antenna. There is also the need to design such antennas with multiple frequencies to offer robustness in the unlikely event that such adversarial attacks on the GPS happen. The basis on which such alternative antennas are designed is a slotted microstrip. The characteristics of the slot or slots on the microstrip are analyzed by mapping their exact locations on the patch and then noting the resultant center frequencies, the return losses, and the bandwidth. The activities associated with this also focus on the design, fabrication, validation, and characterization of one or more slotted antennas prototypes. The measurement of the antenna prototypes does confirm several frequencies that coexist to see applications, in aeronautical radionavigation, fixed-mobile radionavigation, and radiolocation. The antennas could also feature in a wide-area augmentation system (WAAS), satellite ground link system (SGLS) as well as in surveillance and precision approach radars. Some variations of the antenna are deployed in the areas of law enforcement, surveillance, …
Date: August 2020
Creator: Agbor, Ikechukwu Wilson
System: The UNT Digital Library
"We Do Not Wait for the Government": An Evaluation of a Disaster Rebuilding Program in Kathmandu Valley (open access)

"We Do Not Wait for the Government": An Evaluation of a Disaster Rebuilding Program in Kathmandu Valley

Five years ago, a massive earthquake and its subsequent aftershocks rocked the core of Nepal. Recovery from these quakes has been a long and difficult process. This thesis will explore findings from a qualitative evaluation of Lumanti Support Group for Shelter, an NGO in Kathmandu, Nepal that implemented a residential reconstruction program in four peri-urban communities in Kathmandu Valley. These findings are a culmination of 26 semi-structured interviews and document analysis. This research highlights the processes of reconstruction and the forms of resistance that occurred through disaster governance.
Date: August 2020
Creator: Cronin, Shannon
System: The UNT Digital Library
M.I.S.S.I.O.N. (Making Inquiries into the Significance of Safety, Identity, Observations, and Needs) for Warfighters (open access)

M.I.S.S.I.O.N. (Making Inquiries into the Significance of Safety, Identity, Observations, and Needs) for Warfighters

This paper examines the concept of safety as it encompasses the personal and technological spheres as imagined by a group of active duty service members, veterans, a police officer, and civilians, as well as the agency exercised by those with military or police backgrounds when it comes to safety technology. A group of seventeen individuals took part in a battlefield simulation to test a wearable junctional tourniquet created by ARMR Systems, LLC, an innovative advancement in tourniquet technology. After the simulation, participants were interviewed, surveyed, and took part in a focus group to determine not only product suitability but also to explore the underlying reasons for their recommendations for product changes. Results showed that those with military or police background performed safety rituals prior to duty and exercised agency in the desire to obtain the best possible personal safety devices and technology to be used for themselves and their comrade-in-arms. All participants expressed concerns for their safety in regards to technology in general, specifically, the hacking and use of personal data and what is perceived as lack of governmental oversight. Almost all of the changes to improve product safety, comfort, and utility were adapted. The topics discovered during the course …
Date: December 2020
Creator: Urdzik, Patricia Stadelman
System: The UNT Digital Library
How a Schenkerian Analysis May Inform the Interpretation and Performance of J. S. Bach's Lute Music on the Guitar Using Selective Movements of Bach Lute Suite No. 4 in E Major (BWV1006A) as a Demonstration (open access)

How a Schenkerian Analysis May Inform the Interpretation and Performance of J. S. Bach's Lute Music on the Guitar Using Selective Movements of Bach Lute Suite No. 4 in E Major (BWV1006A) as a Demonstration

Continuing the discussion of interpreting J. S. Bach's lute music on the guitar, this dissertation seeks to demonstrate that Schenkerian analysis can assist the modern classical guitarist to better understand Bach's music. In particular, the Schenkerian approach provides an important methodology for studying Bach's music in depth, and then guiding performance practice on the guitar. Although there are many books and articles about transcribing, interpreting and performing Bach's music on the guitar, they do not apply Schenkerian analysis to guitar performance. This research will fill in the lacuna in this field, while promoting music scholarship and enhancing the performance practice of classical guitarists.
Date: December 2020
Creator: Li, Zhi (Guitarist)
System: The UNT Digital Library

Using Kidpower® Social Narratives to Teach Individuals with Autism about Bullying

Individuals with autism spectrum disorder (ASD) are at an increased risk to be victims of bullying due to the core characteristics of the disorder. Prior research has focused on understanding bullying from the perspectives of individuals with ASD, parents, and practitioners through interviews and questionnaires. However, limited evidence exists using interventions to teach individuals with ASD about how to identify and respond to bullying. This study employed Kidpower® bullying narratives to teach individuals with ASD how to identify and respond to various bullying scenarios. Kidpower was selected to provide practitioners with a pre-established curriculum to utilize, rather than creating materials for each student. A multiple probe design across three participants was utilized to (a) teach individuals with ASD how to identify and respond to bullying drawings on Kidpower narratives, and (b) add an experimental study to the limited literature base pertaining to strategies for teaching about bullying to individuals with ASD. A fourth participant was also included as a case study. Progress for all participants was measured using the percentage of correct responses to 10 questions. Three out of four participants reached the mastery criterion of 90% over two consecutive sessions. Sessions for the fourth participant concluded after seven intervention …
Date: December 2020
Creator: Anderson, Chelsi
System: The UNT Digital Library
Thermal Transport Modeling in Three-Dimensional Pillared-Graphene Structures for Efficient Heat Removal (open access)

Thermal Transport Modeling in Three-Dimensional Pillared-Graphene Structures for Efficient Heat Removal

Pillared-graphene structure (PGS) is a novel three-dimensional structure consists of parallel graphene sheets that are separated by carbon nanotube (CNT) pillars that is proposed for efficient thermal management of electronics. For microscale simulations, finite element analyses were carried out by imposing a heat flux on several PGS configurations using a Gaussian pulse. The temperature gradient and distribution in the structures was evaluated to determine the optimum design for heat transfer. The microscale simulations also included conducting a mesh-independent study to determine the optimal mesh element size and shape. For nanoscale simulations, Scienomics MAPS software (Materials And Processes Simulator) along with LAMMPS (Large-scale Atomic/ Molecular Massively Parallel Simulator) were used to calculate the thermal conductivity of different configurations and sizes of PGS. The first part of this research included investigating PGS when purely made of carbon atoms using non-equilibrium molecular dynamics (NEMD). The second part included investigating the structure when supported by a copper foil (or substrate); mimicking production of PGS on copper. The micro- and nano-scale simulations show that PGS has a great potential to manage heat in micro and nanoelectronics. The fact that PGS is highly tunable makes it a great candidate for thermal management applications. The simulations were …
Date: December 2020
Creator: Almahmoud, Khaled Hasan Musa
System: The UNT Digital Library
The Role of Faith-Based Congregations during Disaster Response and Recovery: A Case Study of Katy, Texas (open access)

The Role of Faith-Based Congregations during Disaster Response and Recovery: A Case Study of Katy, Texas

When governments are unable or unwilling to provide necessary relief to communities, local faith-based congregations (FBCs) step in and fill the gap. Though shown to provide for so many needs following disaster, FBCs have largely been left out of the institutional emergency management cycle. The aim of this study was to explore the role of FBCs in the disaster response and recovery process and investigate how recovery impacts FBCs. The primary objective of this study is to gain a better understanding of FBCs and how to better integrate them into the formal emergency management process.The main questions were as follows: First, what is the role of FBCs during the disaster recovery process? Second, how do FBCs change (temporarily and permanently) during disaster recovery, and what factors may promote or inhibit change? To answer these questions, qualitative semistructured interviews were held to develop a case study of Katy, Texas and its recovery from Hurricane Harvey of 2017. The applied and conceptual implications resulting from this study, which apply to FBCs, researchers, emergency managers, and policy makers, highlight the opportunity to better incorporate FBCs formally into emergency management practices.
Date: December 2020
Creator: Elliott, Julie R
System: The UNT Digital Library