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The Information Behavior of Individual Investors in Saudi Arabia
Information plays a significant role in the success of investment strategies. Within a non-advisory context, individual investors elect to build and manage their investment portfolios to avoid the cost of hiring professional advisors. To cope with markets’ uncertainty, individual investors should acquire, understand, and use only relevant information, but that task can be affected by many factors, such as domain knowledge, cognitive and emotional biases, information overload, sources’ credibility, communication channels’ accuracy, and economic costs. Despite an increased interest in examining the financial performance of individual investors in Saudi Arabia, there has been no empirical research of the information behavior of individual investors, or the behavioral biases affecting the investment decision making process in the Saudi stock market (SSM). The purpose of this study was to examine this information behavior within a non-advisory contextualization of their investment decision-making process through the use of an online questionnaire instrument using close-ended questions. The significant intervening variables identified in this study influence the individual investors’ information behavior across many stages of the decision making process. While controlling for gender, education, and income, the optimal information behavior of individual investors in the SSM showed that the Experience factor had the greatest negative effect on the Information Seeking Behavior of individual investors. This was followed by Risk Tolerance, Financial Self-Efficacy, Emotional Biases, Education Level, Formal Information Access, Regret Aversion Bias, and Subjective Financial Knowledge. The Information Acquisition and Information Searching Behavior was influenced by the Acquisition Skepticism, Regret Aversion Bias, Formal Information Access, Overconfidence, and Information Seeking Behavior. Furthermore, the findings indicate that Formal Information Sources have a statistically significant positive effect on the Information Seeking Behavior, and on the Information Acquisition and Information Searching of individual investors in Saudi Arabia. Finally, the Socioeconomic Status (SES) of individual investors in Saudi Arabia was significantly influenced by the employment status, work experience, age, marital status, and income. digital.library.unt.edu/ark:/67531/metadc849714/
Forgotten Legacies: The U.S. Glider Pilot Training Program and Lamesa Field, Texas, During World War II
Rapidly initiated at the national, regional, and local levels, the American glider pilot training program came about due to a perceived need after successful German operations at the outset of World War II. Although the national program successfully produced the required number of pilots to facilitate combat operations, numerous changes and improvisation came to characterize the program. Like other American military initiatives in the twentieth century, the War Department applied massive amounts of effort, dollars, and time to a program that proved to be short-lived in duration because it was quickly discarded when new technologies appeared. At the local level, the real loser was Lamesa, Texas. Bearing the brunt of these changes by military decision makers, the citizens of Lamesa saw their hard-fought efforts to secure an airfield fall quickly by the wayside in the wake of changing national defense priorities. As generations continue to pass and memories gradually fade, it is important to document and understand the relationship between this military platform that saw limited action and a small Texas town that had a similarly short period of significance to train the pilots who flew the aircraft. digital.library.unt.edu/ark:/67531/metadc849715/
Identifying Breast Cancer Disparities in the African-American Community Using a Mixed Methods Approach
Utilizing a mixed methods approach in assessing cities and metropolitan areas with the highest rates of breast cancer disparities in African-American communities, this study presents the Affiliate perspective of the Susan G. Komen non-profit organization in combination with available socioeconomic data and academic literature. Analyzed through an anthropological lens, qualitative and quantitative data illuminate the lived experiences and dynamic circumstances in which breast cancer disparities are disproportionately experienced in 21 of the nation’s populations of African-Americans. Two main recommendations arose from this research: prioritization of granting to activities such as patient navigation, usage of patient narrative messaging, community-based participatory research methods of program development and implementation, mobile mammography delivery, usage of lay health educators, and self-advocacy education to alleviate barriers to healthcare and supplementation of the current educational activities of the Komen Affiliates through program sharing and leverage of current assets with consideration of current Affiliate capacity. These recommendations may help in alleviating breast cancer disparities present in African-American communities with the highest levels of disparities in the nation. digital.library.unt.edu/ark:/67531/metadc849721/
Understanding the Culture of Giving among Utility Fuel Fund Donors in Southern California
The Energy Assistance Fund (EAF) is a voluntary, nonprofit fuel fund that provides grants to income qualified utility customers in an effort to help those customers avoid electricity service disconnection. The administering utility and the energy industry as a whole is undergoing transformative change, resulting in a projected decrease of fundraising capacity for EAF among its most substantial donor pool - utility shareholders and employees. Utility customers represent a small percentage of EAF donors, despite the significant size of the customer base. Through a series of ethnographic interviews and secondary research, this thesis seeks to understand the demographics and motivations of utility customers who donate to EAF in order to help improve EAF’s fundraising strategy and donor solicitations to eventually grow customer donations. The goal of EAF is to maintain or grow donations from 2014 levels so the Fund can continue to serve income qualified customers facing energy poverty. This thesis provides a contextual review of fuel funds; challenges faced by the energy and utility industry; the politics and culture of energy; as well as nonprofit sector fundraising challenges and cultures/motivations of giving. This thesis includes client deliverables such as thick description of donor motivation, motivation themes and a donor motivation map, demographic data which could be used to target solicitations, and lastly a series of recommendations for EAF to improve its fundraising strategy. digital.library.unt.edu/ark:/67531/metadc849722/
"Deborah": The Creation of a Chamber Oratorio in One Act
In comparing oratorio traits across history, three aspects of oratorio were found to be particularly applicable to the creation of "Deborah: A Chamber Oratorio in One Act." These aspects were: the selection of topic and the creation or adaptation of text; the differences between recitative and aria, in form and function; and the level of stylistic diversity within a given work. digital.library.unt.edu/ark:/67531/metadc849726/
Impetuses for First, Second, and Third Year Law Student Information Seeking Behavior, and Perception of Common Knowledge and Citation
This dissertation examined how previous information literacy training, law student gender, age, and previously obtained education affects first, second, and third year law students selection of information sources, their understanding of common knowledge, and their decision of whether or not to give attribution to these sources. To examine these factors, this study implemented a paradigm called the principle of least effort that contended humans in general tended to complete the least amount of work possible to complete presented tasks. This study sought to discover whether law students follow this same path of completing the least amount of work possible to finish presented tasks, and whether this behavior affects information source selection, citation, and understanding of common knowledge. I performed six focus groups and crafted and disseminated an online survey to examine these factors. Via this data collection, it was discovered that law students do exhibit some differences in understanding of citation and citation behavior based on age and their year in law school. They also exhibited some differences regarding common knowledge based on their year in law school, where they received their information literacy training, and where they attend law school. Yet, no statistically significant differences were discovered regarding where one attends law school and citation and source selection. Further this study revealed law students do follow this paradigm and seek the path of least resistance to accomplish law school assignments. digital.library.unt.edu/ark:/67531/metadc849727/
An exploration of the word2vec algorithm: Creating a vector representation of a language vocabulary that encodes meaning and usage patterns in the vector space structure.
This thesis is an exloration and exposition of a highly efficient shallow neural network algorithm called word2vec, which was developed by T. Mikolov et al. in order to create vector representations of a language vocabulary such that information about the meaning and usage of the vocabulary words is encoded in the vector space structure. Chapter 1 introduces natural language processing, vector representations of language vocabularies, and the word2vec algorithm. Chapter 2 reviews the basic mathematical theory of deterministic convex optimization. Chapter 3 provides background on some concepts from computer science that are used in the word2vec algorithm: Huffman trees, neural networks, and binary cross-entropy. Chapter 4 provides a detailed discussion of the word2vec algorithm itself and includes a discussion of continuous bag of words, skip-gram, hierarchical softmax, and negative sampling. Finally, Chapter 5 explores some applications of vector representations: word categorization, analogy completion, and language translation assistance. digital.library.unt.edu/ark:/67531/metadc849728/
"Deva Plus Dog"
Deva Plus Dog is a look at the life of a teenage girl singularly devoted to the sport of dog agility. The film explores how relationships develop and evolve in the high stakes world of competition, and how an alternative lifestyle impacts a youth’s coming of age. digital.library.unt.edu/ark:/67531/metadc849735/
Electrodeposited Metal Matrix Composites for Enhanced Corrosion Protection and Mechanical Properties
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In the oil and gas industry, high corrosion resistance and hardness are needed to extend the lifetime of the coatings due to exposure to high stress and salt environments. Electrodeposition has become a favorable technique in synthesizing coatings because of low cost, convenience, and the ability to work at low temperatures. Electrodeposition of metal matrix composites has become popular for enhanced corrosion resistance and hardness in the oil and gas industry because of the major problems that persist with corrosion. Two major alloys of copper-nickel, 90-10 and 70-30, were evaluated for microbial corrosion protection in marine environments on a stainless steel substrate. Copper and copper alloys are commonly used in marine environments to resist biofouling of materials by inhibiting microbial growth. Literature surveying the electrodeposition of Cu-Ni incorporated with nano- to micro- particles to produce metal matrix composites has been reviewed. Also, a novel flow cell design for the enhanced deposition of metal matrix composites was examined to obtain the optimal oriented structure of the layered silicates in the metal matrix. With the addition of montmorillonite into the Ni and Cu-Ni matrix, an increase in strength, adhesion, wear and fracture toughness of the coating occurs, which leads to an increase corrosion resistance and longevity of the coating. These coatings were evaluated for composition and corrosion using many different types of instrumental and electrochemical techniques. The overall corrosion resistance and mechanical properties were improved with the composite films in comparison to the pure metals, which proves to be advantageous for many economic sectors including the oil and gas industry. digital.library.unt.edu/ark:/67531/metadc849736/
An Analysis of the Leadership Competency Frameworks of Nontraditional Principal Preparation Programs
This study explored the competency frameworks of nontraditional principal preparation programs to determine how they aligned to research-based best practices for school leaders. The research questions that guided this work were: To what degree are the McREL 21 Leadership Responsibilities addressed in the competency frameworks of nontraditional principal preparation programs? How do the leaders of the nontraditional principal preparation programs view the degree to which their competencies include the McREL 21 Leadership Responsibilities? A multi-case study analysis was conducted that compared the competency frameworks of four nontraditional principal preparation programs. The Knowledge is Power Program (KIPP), New Leaders, New York City Leadership Academy (NYCLA), and Teaching Trust were the nontraditional programs selected for this study. Leaders from the four organizations were interviewed. The findings from the research illustrated that a majority of the McREL 21 Leadership Responsibilities were included in the competency frameworks of nontraditional principal preparation programs. The study revealed that four of the McREL 21 were not included in any of the competency frameworks. Another finding was the lack of focus on talent management and personal dispositions in the McREL 21 Leadership Responsibilities. Nontraditional principal preparation programs are a growing avenue for principal preparation, as such their use of research on principal success was promising digital.library.unt.edu/ark:/67531/metadc849719/
Fatigue Behavior of A356 Aluminum Alloy
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Metal fatigue is a recurring problem for metallurgists and materials engineers, especially in structural applications. It has been responsible for many disastrous accidents and tragedies in history. Understanding the micro-mechanisms during cyclic deformation and combating fatigue failure has remained a grand challenge. Environmental effects, like temperature or a corrosive medium, further worsen and complicate the problem. Ultimate design against fatigue must come from a materials perspective with a fundamental understanding of the interaction of microstructural features with dislocations, under the influence of stress, temperature, and other factors. This research endeavors to contribute to the current understanding of the fatigue failure mechanisms. Cast aluminum alloys are susceptible to fatigue failure due to the presence of defects in the microstructure like casting porosities, non-metallic inclusions, non-uniform distribution of secondary phases, etc. Friction stir processing (FSP), an emerging solid state processing technique, is an effective tool to refine and homogenize the cast microstructure of an alloy. In this work, the effect of FSP on the microstructure of an A356 cast aluminum alloy, and the resulting effect on its tensile and fatigue behavior have been studied. The main focus is on crack initiation and propagation mechanisms, and how stage I and stage II cracks interact with the different microstructural features. Three unique microstructural conditions have been tested for fatigue performance at room temperature, 150 °C and 200 °C. Detailed fractography has been performed using optical microscopy, scanning electron microscopy (SEM) and electron back scattered diffraction (EBSD). These tools have also been utilized to characterize microstructural aspects like grain size, eutectic silicon particle size and distribution. Cyclic deformation at low temperatures is very sensitive to the microstructural distribution in this alloy. The findings from the room temperature fatigue tests highlight the important role played by persistent slip bands (PSBs) in fatigue crack initiation. At room temperature, cracks initiate along PSBs in the absence of other defects/stress risers, and grow transgranularly. Their propagation is retarded when they encounter grain boundaries. Another major finding is the complete transition of the mode of fatigue cracking from transgranular to intergranular, at 200 °C. This occurs when PSBs form in adjacent grains and impinge on grain boundaries, raising the stress concentration at these locations. This initiates cracks along the grain boundaries. At these temperatures, cyclic deformation is no longer microstructure- dependent. Grain boundaries don’t impede the progress of cracks, instead aid in their propagation. This work has extended the current understanding of fatigue cracking mechanisms in A356 Al alloys to elevated temperatures. digital.library.unt.edu/ark:/67531/metadc849720/
Continuous Combinatorics of a Lattice Graph in the Cantor Space
We present a novel theorem of Borel Combinatorics that sheds light on the types of continuous functions that can be defined on the Cantor space. We specifically consider the part X=F(2ᴳ) from the Cantor space, where the group G is the additive group of integer pairs ℤ². That is, X is the set of aperiodic {0,1} labelings of the two-dimensional infinite lattice graph. We give X the Bernoulli shift action, and this action induces a graph on X in which each connected component is again a two-dimensional lattice graph. It is folklore that no continuous (indeed, Borel) function provides a two-coloring of the graph on X, despite the fact that any finite subgraph of X is bipartite. Our main result offers a much more complete analysis of continuous functions on this space. We construct a countable collection of finite graphs, each consisting of twelve "tiles", such that for any property P (such as "two-coloring") that is locally recognizable in the proper sense, a continuous function with property P exists on X if and only if a function with a corresponding property P' exists on one of the graphs in the collection. We present the theorem, and give several applications. digital.library.unt.edu/ark:/67531/metadc849680/
Do Re Mi? Yes! Using Music and Visual Arts to Promote Thai Children's English Vocabulary Development
This research examines the efficacy, if any, of the Music and Visual Arts (MVA) program in improving the English vocabulary development of first grade Thai students. The researcher developed the Vocabulary Recognition Assessment (VRA) as a measure of English vocabulary development. It employs the accuracy and rapidity method of word recognition as a measurement of English language development in Thai children. Forty first grade Thai students in a Bangkok elementary school participated in the study. Participants were divided equally between an experimental group and a control group. During a nine-week period, students in the experimental group were instructed with the MVA strategy, while students in the control group were taught with the Visual Arts (VA) strategy. Paired sample t-test, ANOVA, and ANCOVA were used to analyze data from the VRA, to compare the pre-test and the post-test in terms of accuracy scores and rapidity scores of the control group and the experimental group. Data revealed that students instructed with the MVA strategy improved their English vocabulary development in terms of accuracy of word recognition significantly more than students taught English using the VA strategy. No significant difference was found between the MVA strategy and the VA strategy in terms of rapidity of word recognition. The MVA strategy could be a useful strategy for Thai early childhood teachers to use in helping Thai children learn English vocabulary. digital.library.unt.edu/ark:/67531/metadc849681/
Intraoral Pressure and Sound Pressure During Woodwind Performance
For woodwind and brass performers, intraoral pressure is the measure of force exerted on the surface area of the oral cavity by the air transmitted from the lungs. This pressure is the combined effect of the volume of air forced into the oral cavity by the breathing apparatus and the resistance of the embouchure, reed opening, and instrument’s back pressure. Recent research by Michael Adduci shows that intraoral pressures during oboe performance can exceed capabilities for corresponding increases in sound output, suggesting a potentially hazardous situation for the development of soft tissue disorders in the throat and velopharyngeal insufficiencies. However, considering that oboe back pressure is perhaps the highest among the woodwind instruments, this problem may or may not occur in other woodwinds. There has been no research of this type for the other woodwind instruments. My study was completed to expand the current research by comparing intraoral pressure (IOP) and sound pressure when performing with a characteristic tone on oboe, clarinet, flute, bassoon, and saxophone. The expected results should show that, as sound pressure levels increase, intraoral pressure will also increase. The subjects, undergraduate and graduate music majors at the University of North Texas, performed a series of musical tasks on bassoon, clarinet, flute, oboe, and alto saxophone. The musical tasks cover the standard ranges of each instrument, differences between vibrato and straight-tone, and a variety of musical dynamics. The data was collected and examined for trends. The specific aims of this study are to (1) determine whether there is a correlation between IOP and sound pressure, (2) shed light on how well each instrument responds to rapid fluctuation, and (3) determine which instruments are most efficient when converting air pressure into sound output. Results of this study raised concerns shared by previous studies – that woodwind players are potentially causing harm to their oropharynx by inaccurately perceiving intraoral pressure needed to achieve a characteristic sound. Evidence found by this study suggests that while oboists generate high intraoral pressure for relatively little sound output (a fact corroborated by past studies), the same cannot be said for all of the woodwind instruments, particularly the flute. digital.library.unt.edu/ark:/67531/metadc849677/
Preferred Qualifications of Collegiate Athletic Directors: Opinions of Presidents and Athletic Directors
This study explored the preparation methods, qualifications and criteria that both university and athletic directors deemed necessary when searching for athletic directors. Participants completed a survey via Qualtrics online software. Two different populations were sampled for this study: 651 university presidents and 651 athletic directors whose schools compete in either Division I or II in the NCAA, resulting in 96 abd 150 usable responses respectively. Participants in both groups were primarily white males with mean ages of 62 for presidents and 52 for the athletic directors. The study provided demographic information, educational history, professional experience, and prior careers of athletic directors. The rankings of the athletic were compared to the rankings of the presidents and identified consistenncies of opinions. The respondent groups were in agreement on the qualities and ranking of many dimensions of leadershihp in this role. The top seven, for both groups, in order, were ethics, budgeting and finances skills, fundraising, communications, sport leadership, strategic management and policy, and athletic administration. This information could be used as a guide for people who want to strategically maneuver up the ranks in athletics administration. Presidents might use the information as they prepare to hire candidates for the athletic director position. digital.library.unt.edu/ark:/67531/metadc849678/
Comment peut-on être Persane ou Péruvienne ? On le devient.
Cette analyse littéraire examine les parallèles entre les deux romans Lettres persanes de Montesquieu (1721) et Lettres d'une Péruvienne de Françoise de Graffigny (1747) en se concentrant sur le sort des femmes et leur rébellion contre la claustration. Leurs révoltes transformatrices révèlent une volonté qui refuse et puis transcende les barreaux de leur captivité pour vivre librement. La philosophie de Simone de Beauvoir (1908-1986) personnifie leurs luttes pour devenir et exister, ce qui se traduit par leur capacité de dévoiler leur vraie nature. Elles se battent contre le néant de leurs existences où elles ne peuvent que succomber aux contraintes imposées. Elles se battent pour se définir et pour devenir. Cependant, c'est Graffigny qui nous offre une réponse plus proto-féministe dépassant les paramètres masculins de la société. Son livre répond directement aux Lettres persanes pour créer une nouvelle femme iconoclaste qui transcende les barrières de la société pour se réinventer. digital.library.unt.edu/ark:/67531/metadc849679/
Highly Stretchable Miniature Strain Sensor for Large Dynamic Strain Measurement
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This thesis aims to develop a new type of highly stretchable strain sensor to measure large deformation of a specimen subjected to dynamic loading. The sensor was based on the piezo-resistive response of carbon nanotube(CNT)/polydimethysiloxane (PDMS) composites thin films, some nickel particles were added into the sensor composite to improve the sensor performance. The piezo-resistive response of CNT composite gives high frequency response in strain measurement, while the ultra-soft PDMS matrix provides high flexibility and ductility for large strain measuring large strain (up to 26%) with an excellent linearity and a fast frequency response under quasi-static test, the delay time for high strain rate test is just 30 μs. This stretchable strain sensor is also able to exhibit much higher sensitivities, with a gauge factor of as high as 80, than conventional foil strain gauges. digital.library.unt.edu/ark:/67531/metadc849674/
Decision Makers’ Cognitive Biases in Operations Management: An Experimental Study
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Behavioral operations management (BOM) has gained popularity in the last two decades. The main theme in this new stream of research is to include the human behavior in Operations Management (OM) models to increase the effectiveness of such models. BOM is classified into 4 areas: cognitive psychology, social psychology, group dynamics and system dynamics (Bendoly et al. 2010). This dissertation will focus on the first class, namely cognitive psychology. Cognitive psychology is further classified into heuristics and biases. Tversky and Kahneman (1974) discussed 3 heuristics and 13 cognitive biases that usually face decision makers. This dissertation is going to study 6 cognitive biases under the representativeness heuristic. The model in this dissertation states that cognitive reflection of the individual (Frederick 2005) and training about cognitive biases in the form of warning (Kaufmann and Michel 2009) will help decisions’ makers make less biased decisions. The 6 cognitive biases investigated in this dissertation are insensitivity to prior probability, insensitivity to sample size, misconception of chance, insensitivity to predictability, the illusion of validity and misconception of regression. 6 scenarios in OM contexts have been used in this study. Each scenario corresponds to one cognitive bias. Experimental design has been used as the research tool. To see the impact of training, one group of the participants received the scenarios without training and the other group received them with training. The training consists of a brief description of the cognitive bias as well as an example of the cognitive bias. Cognitive reflection is operationalized using cognitive reflection test (CRT). The survey was distributed to students at University of North Texas (UNT). Logistic regression has been employed to analyze data. The research shows that participants show the cognitive biases proposed by Tversky and Kahneman. Moreover, CRT is significant factor to predict the cognitive bias in two scenarios. Finally, providing training in terms of warning helps participants to make more rational decisions in 4 scenarios. This means that although cognitive biases are inherent in the mind of people, management of corporations has the tool to educate its managers and professionals about such biases which helps companies make more rational decisions. digital.library.unt.edu/ark:/67531/metadc849675/
Community-based Logistics and Supply Chain Management: Developing, Testing and Validating Conceptual Models
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The field of Logistics and Supply Chain Management (LSCM) suggests that transactions, collaboration, and value are important in the supply and delivery of products and services to meet the need of impoverished end-consumers. In many cases, the application of LSCM is paramount in most strategic decision-making efforts. Therefore, this research explores the applications of LSCM processes and activities within the community-based context. The methodology used to address the research questions consisted of a hybrid of mixed methods. This mixed methodology provides three essays that investigate the application and development of LSCM in the community-based context. The essays address the flow of charitable products and services through supply chains. The dissertation does not pay close attention to the first-tier suppliers’ suppliers, which is looking at the originating flow of goods and services (raw materials, manufacturing, etc.). However, the dissertation puts a focus on products and services supplied to focal organizations and how these products are then passed on to end-consumers. Essay I looks at the transaction (costs) that ensue from the supply of charitable products. Essay II analyzes a social service ecosystem and investigates how the network of organizations enable the distribution of charitable products and services. Lastly, Essay III examines the delivery of valuable services to the end-consumers, and what tools Community-Based Enterprises (CBEs) should focus on to develop and retain end-consumers in impoverished communities. The research provides conceptual models that review some fundamental LSCM achievement gaps in supplying, delivering and providing social services to end users within impoverished communities. The dissertation draws upon literature from the fields of economics, marketing, social science, and logistics and supply chain management. The dissertation uses the primary research method of unstructured and semi-structured interviews, case studies, written survey instruments and system dynamics within three studies. The studies resolve to look into the term Community-Based Logistics and Supply Chain Management (CBLSCM) as employed by social service providers in the logistics and supply chain context and investigate how it applies to impoverished communities. The research identifies conceptual models that can be used to explain the role of LSCM within humanitarian aid context. The models offer insights on the managerial implications and evidence of using LSCM processes and techniques within impoverished communities. The research has considered that the type of transactional relationships, structure, shared value, service systems, and consumer value, retention and management mechanisms can be achieved utilizing LSCM. digital.library.unt.edu/ark:/67531/metadc849676/
'My Tattooed Mind'
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This thesis features a collection of nonfiction essays. digital.library.unt.edu/ark:/67531/metadc849670/
Ours is the Kingdom of Heaven: Racial Construction of Early American Christian Identities
This project interrogates how religious performance, either authentic or contrived, aids in the quest for freedom for oppressed peoples; how the rhetoric of the Enlightenment era pervades literatures delivered or written by Native Americans and African Americans; and how religious modes, such as evoking scripture, performing sacrifices, or relying upon providence, assist oppressed populations in their roles as early American authors and speakers. Even though the African American and Native American populations of early America before the eighteenth century were denied access to rights and freedom, they learned to manipulate these imposed constraints--renouncing the expectation that they should be subordinate and silent--to assert their independent bodies, voices, and spiritual identities through the use of literary expression. These performative strategies, such as self-fashioning, commanding language, destabilizing republican rhetoric, or revising narrative forms, become the tools used to present three significant strands of identity: the individual person, the racialized person, and the spiritual person. As each author resists the imposed restrictions of early American ideology and the resulting expectation of inferior behavior, he/she displays abilities within literature (oral and written forms) denied him/her by the political systems of the early republican and early national eras. Specifically, they each represent themselves in three ways: first, as a unique individual with differentiated abilities, exceptionalities, and personality; second, as a person with distinct value, regardless of skin color, cultural difference, or gender; and third, as a sanctified and redeemed Christian, guaranteed agency and inheritance through the family of God. Furthermore, the use of religion and spirituality allows these authors the opportunity to function as active agents who were adapting specific verbal and physical methods of self-fashioning through particular literary strategies. Doing so demonstrates that they were not the unrefined and unfeeling individuals that early American political and social restrictions had made them--that instead they were intellectually and morally capable of making both physical and spiritual contributions to society while reciprocally deserving to possess the liberties and freedoms denied them. digital.library.unt.edu/ark:/67531/metadc849673/
Teaching beyond the walls: A mixed method study of prospective elementary teachers’ belief systems about science instruction.
This mixed method study investigated K-6 teacher candidates' beliefs about informal science instruction prior to and after their experiences in a 15-week science methods course and in comparison to a non-intervention group. The study is predicated by the literature that supports the extent to which teachers' beliefs influence their instructional practices. The intervention integrated the six strands of learning science in informal science education (NRC, 2009) and exposed candidates to out-of-school-time environments (NRC, 2010). Participants included 17 candidates in the intervention and 75 in the comparison group. All were undergraduate K-6 teacher candidates at one university enrolled in different sections of a required science methods course. All the participants completed the Beliefs about Science Teaching (BAT) survey. Reflective journals, drawings, interviews, and microteaching protocols were collected from participants in the intervention. There was no statistically significant difference in pre or post BAT scores of the two groups; However, there was a statistically significant interaction effect for the intervention group over time. Analysis of the qualitative data revealed that the intervention candidates displayed awareness of each of the six strands of learning science in informal environments and commitment to out-of-school-time learning of science. This study supports current reform efforts favoring integration of informal science instructional strategies in science methods courses of elementary teacher education programs. digital.library.unt.edu/ark:/67531/metadc849671/
Stable Nanocrystalline Au Film Structures for Sliding Electrical Contacts
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Hard gold thin films and coatings are widely used in electronics as an effective material to reduce the friction and wear of relatively less expensive electrically conductive materials while simultaneously seeking to provide oxidation resistance and stable sliding electrical contact resistance (ECR). The main focus of this dissertation was to synthesize nanocrystalline Au films with grain structures capable of remaining stable during thermal exposure and under sliding electrical contact stress and the passing of electrical current. Here we have utilized a physical vapor deposition (PVD) technique, electron beam evaporation, to synthesize Au films modified by ion implantation and codeposited ZnO hardened Au nanocomposites. Simultaneous friction and ECR experiments of low fluence (< 1x10^17 cm^-2) He and Ar ion implanted Au films showed reduction in friction coefficients from ~1.5 to ~0.5 and specific wear rates from ~4x10^-3 to ~6x10^-5 mm^3/N·m versus as-deposited Au films without significant change in sliding ECR (~16 mΩ). Subsurface microstructural changes of He implanted films due to tribological stress were analyzed via site-specific cross-sectional transmission electron microscopy (TEM) and revealed the formation of nanocrystalline grains for low energy (22.5 keV) implantation conditions as well as the growth and redistribution of cavities. Nanoindentation hardness results revealed an increase from 0.84 GPa for as-deposited Au to ~1.77 GPa for Au uniformly implanted with 1 at% He. These strength increases are correlated with an Orowan hardening mechanism that increases proportionally to (He concentration)1/3. Au-ZnO nanocomposite films in the oxide dilute regime (< 5 vol% ZnO) were investigated for low temperature aging stability in friction and ECR. Annealing at 250 °C for 24 hours Au-(2 vol%)ZnO retained a friction coefficient comparable to commercial Ni hardened Au of ~ 0.3 and sliding ECR values of ~35 mΩ. Nanoindentation hardness increases of these films (~2.6 GPa for 5 vol% ZnO) are correlated to microstructure via high resolution TEM and scanning electron microscope cross-sections to both Hall-Petch and Orowan strengthening mechanisms. Also presented is a correlation between electrical resistivity and grain size in the oxide dilute range based on the Mayadas-Shatzkes (M-S) electron scattering model. Using the M-S model in combination with a model describing solute drag stabilized grain growth kinetics we present a new technique to probe grain boundary mobility and thermal stability from in-situ electrical resistivity measurements during annealing experiments. digital.library.unt.edu/ark:/67531/metadc849672/
Louis Vierne’s Pièces de Fantaisie, Opp. 51, 53, 54, and 55: Influence from Claude Debussy and Standard Nineteenth-Century Practices
The purpose of this research is to document how Claude Debussy’s compositional style was used in Louis Vierne’s organ music in the early twentieth century. In addition, this research seeks standard nineteenth-century practices in Vierne’s music. Vierne lived at the same time as Debussy, who largely influenced his music. Nevertheless, his practices were varied on the basis of Vierne’s own musical ideas and development, which were influenced by established nineteenth-century practices. This research focuses on the music of Louis Vierne’s Pièces de fantaisie, Opp. 51, 53, 54, and 55 (1926-1927). In order to examine Debussy’s practices and standard nineteenth-century practices, this project will concentrate on a stylistic analysis that demonstrates innovations in melody, harmony, and mode compared to the existing musical styles. digital.library.unt.edu/ark:/67531/metadc849666/
Cross-cultural adjustment of self-initiated expatriates and individual work performance.
Globalization in the past few decades has been marked by increased mobility of highly skilled workers from one country to another. Even though self-initiated expatriation is a widespread phenomenon, it is a relatively under-researched phenomenon in the academic literature, especially in an organizational context. Existing literature shows that not all individuals are equally suited to embark on a new life in another country, and self-initiated expatriates (SIEs) could be particularly susceptible to failure since they have no support from a home organization. This study was designed to investigate the experiences of self-initiated professional expatriates and the effect it had on their work performance. The purpose was to understand how their organizational and social experience affected their cross-cultural adjustment process and in turn affected their individual work performance. The researcher used a qualitative method using semi-structured interviews, observations, and documents with ten self-initiated expatriates. This study contributed to the expanding literature on the experiences of self-initiated expatriates, specifically how different support systems affected cross-cultural adjustment and individual work performance. digital.library.unt.edu/ark:/67531/metadc849667/
The Mystery of the Chalumeau and Its Historical Significance as Revealed Through Selected Works for Chalumeau or Early Clarinet by Antonio Vivaldi
Factual evidence concerning the ancestry of the clarinet has been a perpetual topic of debate among musicologists and organologists. Scholars have widely agreed that the clarinet, first documented in 1710, emerged from the baroque invention of the chalumeau (invented circa 1690), which in itself was an improvement upon the recorder. Considering the chalumeau’s short lifespan as the predominant single reed instrument in the early eighteenth century, the chalumeau inspired a monumental amount of literature that includes vocal and instrumental genres written by distinguished composers. Vivaldi is considered to be the most significant composer that wrote for both clarinet and chalumeau; he wrote for both instruments simultaneously throughout his life whereas his contemporaries seemingly replaced the chalumeau with the clarinet. This project will discuss Vivaldi’s proximity to the chalumeau and the clarinet and will provide an in-depth analysis of relevant works by the composer to determine how he, unlike his contemporaries, treated the chalumeau and the clarinet as separate and equally viable instruments. Following a brief history of the chalumeau and clarinet in Italy and a relevant biography of Vivaldi (Ch. 2), this document will discuss the integral Vivaldi compositions that include clarinet and chalumeau and the role of the clarinet or chalumeau in each work (Ch. 3). Chapter 4 solves the mystery of why Vivaldi continued to compose for the chalumeau while his contemporaries replaced the chalumeau with the clarinet. digital.library.unt.edu/ark:/67531/metadc849668/
A Sequential Analysis of Therapist and Child Social Behavior Following a Conditioned Reinforcement Procedure
We conducted a contingency analysis to evaluate if a sequential relation between social initiations and positive social responses increased for both therapists and children with autism following a conditioned reinforcement procedure. Participants included child-therapist dyads, which were previously identified as having low rapport. These dyads were observed prior to and following an intervention designed to establish therapists' social behavior as a reinforcer. Sessions consisted of unstructured play between the therapist and child. Results from a Yule's Q analysis show that both the child and adult positive responding to the others' social initiations increased following the intervention. Findings highlight the reciprocal effects of therapist-child interactions as well as the effectiveness of establishing social attention as a reinforcer via an operant discrimination training procedure. digital.library.unt.edu/ark:/67531/metadc849669/
Transmedia STEM Intervention Book in Middle School for Educational Change
The world is becoming a global place in which science, technology, engineering and mathematics hold a key to a successful future. To help secure this future it is important to engage students early with relevant curriculum that sparks interest and success in STEM fields. However, education reform occurs slowly, so this paper looked at a potential paradigm that can help to bring about change in a middle school environment that harnesses the long standing strengths of learning and education with the integration of technology to create changes in the pedagogy of learners and teachers. The study implemented a transmedia STEM book and evaluated the impact it had on student perceptions of STEM, school attitude, academic achievement, and preferred activity types, providing an example vehicle for change that can be adopted over time. The main findings showed that students who used a 3-Dimensional printer had higher math achievement and a more positive perception of math. digital.library.unt.edu/ark:/67531/metadc849609/
Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium-Chromium Alloys
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A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15 Laves) phases exist in varying phase fractions, which were influential in determining hardness values. With the furnace cooled alloy, there was more homogeneous nucleation of α phase throughout the sample with a larger phase fraction of TiCr2 resulting in increased hardness values. When compared to the air cooled alloy, there was absence of wide scale nucleation of α phase and formation of ω phase within the β phase due to the quicker cooling from elevated temperature. At lower concentrations of Cr, the kinetics resulted in a diffusionless phase transformation of ω phase with increased hardness and a lower phase fraction of TiCr2. In contrast at higher Cr concentrations, α phase separation reaction occurs where the β phase is spinodally decomposed to Cr solute-lean β1 and solute-rich β2 resulting in reduced hardness. digital.library.unt.edu/ark:/67531/metadc849610/
Analysis of Factors for Successful State-Level Support of Low-Performing Schools
This study provides a qualitative look at Texas' Professional Service Providers' (PSPs) strategies for supporting low-performing schools. Four PSPs were selected for participation based on the number of schools they helped exit the Texas Title I School Improvement Program from 2007-2012. Data collected and analyzed included provider and principal interviews, providers' progress reports documenting services, and principals' evaluations of provider services. Results indicated key support strategies in two of four cases were supporting and mentoring/coaching while communicating and building trust were important in the other two cases. Communicating, reviewing information, and planning were important across all cases. The quality indicators aligning with the PSPs' strategies were fit, comprehensiveness, and coherence. They were also the most common across all cases. Finally, analysis of the evaluation of provider services revealed PSP-1 with the highest ratings, followed by PSP-2, PSP-3, and PSP-4 respectively. The findings suggest, first, that PSP support has a dual nature. Contextual support was provided based on the campus leaderships' skills and requests. PSPs also ensured coherence among the strategies of all stakeholders. Secondly, a hierarchy of quality service indicators aligned to the PSPs' strategies: fit, comprehensiveness, and coherence. Finally relationships are vital to a successful provider-campus relationship. The findings have implications for PSP selection, professional development, and evaluation. digital.library.unt.edu/ark:/67531/metadc849605/
Medical comorbidity in the course of bipolar disorder.
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Bipolar disorder is a serious illness affecting approximately 2-4% of the population and is one of the world’s leading causes of disability. In individuals with bipolar disorder, medical comorbidity associated with cardiovascular, respiratory and endocrine disorders is related to increased rates of mortality. Recent updates to multi-system inflammatory related conceptualizations of bipolar disorder focus on the unique power that medical illness and biological processes may play as factors associated with course and outcome in bipolar disorder. The current study examined medical comorbidity and its associations with various demographic and psychological variables in individuals with bipolar disorder, schizophrenia, and major depressive disorder with psychotic features followed for 10 years from their first hospital admission. When compared to an age, gender and race-matched control sample from the population, those with bipolar disorder had significantly higher medical comorbidity across a range of medical diagnoses both at 6 months and 10 years after first hospital admission. Ten years following initial hospitalization, individuals in all three diagnostic groups reported increased rates of diabetes (OR: 2.0 – 3.7), stroke (OR: 4.6 – 7.0) and asthma (OR: 1.9 - 3.1), and individuals with bipolar disorder reported increased rates of cancer (OR = 2.1). A number of psychological and demographic symptoms were examined for their ability to predict the development of medical illness across the assessment interval. Overall rates of medical illness were elevated both early in illness course and 10 years after diagnosis, suggesting that broad sequelae of multi-system inflammation are present early and progress over time. digital.library.unt.edu/ark:/67531/metadc849606/
Social-Emotional Competencies of African American Children: Impact of Child-Centered Play Therapy
African American children experience risks due to heightened socio-environmental problems and responding to negative racial messages in their environments. Child Centered Play Therapy (CCPT) is one viable intervention for the development of social emotional competence among African American children to help mediate adverse conditions. I sought to explore the effects of CCPT on the social emotional competencies of African American children utilizing Social Emotional Assets and Resilience Scale-Parent & Teacher (SEARS-P; SEARS-T) reports. Thirty-seven African American participants with a mean age of 6.68 years were recruited from four suburban elementary schools in the southwest U.S. Twenty participants were randomly assigned to the intervention group receiving a mean of 13.3 CCPT sessions over 8 weeks, and 17 participants were assigned to the waitlist control group. Factorial ANOVA results indicated that parents reported statistically and practically significant improvement for children who participated in CCPT in overall social-emotional competencies. Follow-up analysis revealed statistical and practical improvement in children’s empathy, as well as practical improvement in self-regulation/responsibility and social competence. Teacher-reported results indicated practical but non-statistically significant improvement in overall social-emotional competencies for children who participated in CCPT, including statistical and practical improvement in children’s responsibility, as well as practical improvement in self-regulation, social competence, and empathy. Thus, CCPT showed promise as a culturally responsive treatment intervention to improve African American children’s social-emotional competencies digital.library.unt.edu/ark:/67531/metadc849602/
The Contemporary Bassoonist: Music for Interactive Electroacoustics and Bassoon
As the bassoon has evolved over time, the music written for the instrument has evolved around it, and was many times the catalyst for its evolution. Bassoon music of the seventeenth through early twentieth centuries has defined much of the curricula for bassoon studies, and has established how we consider and experience the bassoon. We experience, write, and consume music in vastly different ways than just a generation ago. Humans use technology for the most basic of tasks. Composers are using the technology of our generation to compose music that is a reflection of our time. This is a significant aspect of art music today, and bassoonists are barely participating in the creation of this new repertoire. Performance practice often considers only the musical score; interactive electronic music regularly goes beyond that. The combination of technological challenges and inexperience can make approaching electroacoustic music a daunting and inaccessible type of music for bassoonists. These issues require a different language to the performance practice: one that addresses music, amplification, computer software, hardware, the collaboration between performer and technology, and often the performer and composer. The author discusses problems that performers face when rehearsing and performing interactive electroacoustic works for bassoon, and offers some solutions. digital.library.unt.edu/ark:/67531/metadc849603/
Mujeres sumisas, mujeres transgresoras en el siglo XIX español: una aproximacion a la obra de Francisca Navarro y Joaquina Garcia Balmaseda
This research discusses the changing role of women in Spanish society during the nineteenth century through the works of Francisca Navarro and Joaquina Garcia Balmaseda. The thesis shows the break with the traditional image of the "angel del hogar" and the gradual incorporation of the social changes affecting women which were reflected in the female protagonists of the comedies written by such playwrights. By reading theoretical texts of the emerging feminist theory and through analysis of the main female characters, this study examines the changes regarding the established canon and its own evolution within the nineteenth century, from the works of a pioneer like Francisca Navarro in the first third of the century to those of Joaquina Gracia Balmaseda towards the end of it. digital.library.unt.edu/ark:/67531/metadc849614/
A New Lacunarity Analysis Add-In for ArcGIS
This thesis introduces a new lacunarity analysis add-in for ArcGIS digital.library.unt.edu/ark:/67531/metadc849615/
Performance Evaluation of UNT Apogee Stadium Wind Turbines
The following report chronicles the University of North Texas Wind Turbine Project at Apogee Stadium. The timeline of events will include the feasibility study conducted by and for the university, grant awards from the Texas State Energy Conservation Office to fund the project, and a three-year sample of real time performance data since installation. The purpose of this case study is to compare the energy generation estimates by various stakeholders to the measured energy generation using a new but uniform performance relationship. In order to optimize energy generation in wind turbine generator systems, the most common wind speeds measured at the site should also be the most efficient wind speeds at which the wind turbine can convert the kinetic energy in the wind into mechanical energy and ultimately electrical energy. The tool used to convey this relationship will be a figure plotting the wind speed profile against the efficiency curve of the wind turbine. Applying this relationship tool to the UNT Apogee Stadium wind turbines provided valuable results. The most common wind speeds at Apogee Stadium are not the most efficient wind speed for the turbine. Also, the most common wind speeds were near the lower limit of the wind turbine’s performance parameters. This scenario was evident in both the energy generation predictions as well as the real-time recorded data. This case study will also present the economic analysis of the Apogee Stadium wind turbines using another tool that was not previously used in the feasibility study. The case study concludes with future steps to improve wind turbine performance, and to budget future cost using past, present and future energy savings. digital.library.unt.edu/ark:/67531/metadc849611/
Commercial Diplomacy: The Berlin-Baghdad Railway and Its Peaceful Effects on Pre-World War I Anglo-German Relations
Slated as an economic outlet for Germany, the Baghdad Railway was designed to funnel political influence into the strategically viable regions of the Near East. The Railway was also designed to enrich Germany's coffers with natural resources with natural resources and trade with the Ottomans, their subjects, and their port cities... Over time, the Railway became the only significant route for Germany to reach its "place in the sun," and what began as an international enterprise escalated into a bid for diplomatic influence in the waning Ottoman Empire. digital.library.unt.edu/ark:/67531/metadc849612/
Online Pornography and Its Effects on the Behavior of College Students
The primary goal of this study was to investigate the habits of college students who use pornography. The study was designed to collect data on the use of online pornography by college students. Through the use of an online survey, the study collected general demographic data and data on the frequency with which students used online pornography. The study also collected data on the general attitudes of college students towards online pornography. Participants consisted of students enrolled at the University of North Texas during the Spring 2016 semester. The participants of the study were contacted by an email requesting the student to respond to an online anonymous survey regarding their use of online pornography. The survey consisted of thirty questions and statements, primarily utilizing a five point Likert scale. Analysis of the data collected as well as a discussion of the findings are included. digital.library.unt.edu/ark:/67531/metadc849607/
Innovative Cold-Formed Steel Shear Walls with Corrugated Steel Sheathing
This thesis presents two major sections with the objective of introducing a new cold-formed steel (CFS) shear wall system with corrugated steel sheathings. The work shown herein includes the development of an optimal shear wall system as well as an optimal slit configuration for the CFS corrugated sheathings which result in a CFS shear wall with high ductility, high strength, high stiffness and overall high performance. The conclusion is based on the results of 36 full-scale shear wall tests performed in the structural laboratory of the University of North Texas. A variety of shear walls were the subject of this research to make further discussions and conclusions based on different sheathing materials, slit configurations, wall configurations, sheathing connection methods, wall dimensions, shear wall member thicknesses, and etc. The walls were subject to cyclic (CUREE protocol) lateral loading to study their deformations and structural performances. The optimal sit configuration for CFS shear walls with corrugated steel sheathings was found to be 12×2 in. vertical slits in 6 rows. The failure mode observed in this shear wall system was the connection failure between the sheathing and the framing members. Also, most of the shear walls tested displayed local buckling of the chord framing members located above the hold-down locations. The second section includes details of developing a Finite Element Model (FEM) in ABAQUS software to analyze the lateral response of the new shear wall systems. Different modeling techniques were used to define each element of the CFS shear wall and are reported herein. Material properties from coupon test results are applied. Connection tests are performed to define pinching paths to model fasteners with hysteretic user-defined elements. Element interactions, boundary conditions and loading applications are consistent with full scale tests. CFS members and corrugated sheathings are modeled with shell elements, sheathing-to-frame fasteners are modeled using nonlinear springs (SPRING2 elements) for monotonic models and a general user defined element (user subroutine UEL) for cyclic models. Hold-downs are defined by boundary conditions. A total of three models were developed and validated by comparing ABAQUS results to full scale test results. digital.library.unt.edu/ark:/67531/metadc849608/
Manhood in Spain: Feminine Perspectives of Masculinity in the Seventeenth Century
The question of decline in the historiography of seventeenth-century Spain originally included socio-economic analyses that determined the decline of Spain was an economic recession. Eventually, the historiographical debate shifted to include cultural elements of seventeenth-century Spanish society. Gender within the context of decline provides further insight into how the deterioration of the Spanish economy and the deterioration of Spanish political power in Europe affected Spanish self-perception. The prolific Spanish women writers, in addition, featured their points of view on manhood in their works and created a model of masculinity known as virtuous masculinity. They expected Spanish men to perform their masculine duties as protectors and providers both in public and in private. Seventeenth-century decline influenced how women viewed masculinity. Their new model of masculinity was based on ideas that male authors had developed, but went further by emphasizing men treating their wives well. digital.library.unt.edu/ark:/67531/metadc849616/
Preparing Selected Wind Band Euphonium Audition Materials Through the Use of Etudes
Etudes have been composed to address the primary challenges found in ten selected euphonium wind band pieces. Each work was chosen based on its frequency of occurrence in military band auditions as well as its appearance in excerpt books and journal articles. Practice drills, practice variations, and overtraining studies are the primary concepts used for composing each etude. List of selected works: (1) Roman Carnival Overture Op. 9, Hector Berlioz; (2) First Suite in E-flat for Military Band Op. 28 No. 1, Gustav Holst; (3) Barnum and Bailey's Favorite, Karl King; (4) The Melody Shop, Karl King; (5) Aegean Festival Overture, Andreas Makris arr. Albert Bader; (6) Theme and Variations Op. 43 A, Arnold Schoenberg; (7) Festive Overture Op. 96, Dmitri Shostakovich arr. Donald Hunsberger; (8) Festival Variations, Claude T. Smith; (9) The Stars and Stripes Forever, John Philip Sousa; and (10) Suite from the Ballet: Pineapple Poll, Arthur Sullivan arr. Charles Mackerras. digital.library.unt.edu/ark:/67531/metadc849617/
Taxpayer compliance from three perspectives: A study of economic, environmental, and personal determinants.
Tax evasion is a serious issue that influences governmental revenues, IRS enforcement strategies, and tax policy decisions. While audits are the most effective method of enforcing compliance, they are expensive to conduct and the IRS is only able to audit a fraction of the returns filed each year. This suggests that audits alone are not sufficient to curb the billions of dollars of tax evaded by taxpayers each year and that a better understanding of factors influencing compliance decisions is needed to enable policymakers to craft tax policies that maximize voluntary compliance. Prior research tends to model compliance as economic, environmental, or personal decisions; however, this study models it as a multifaceted decision where these three perspective individually and interactively influence compliance. It is the first to decompose perceived detection risk into two dimensions (selection risk and enforcement risk) and investigates how these two dimensions of risk, decision domains (refund or tax due positions), and three personal factors (mental accounting, narcissism, and proactivity) influence taxpayers’ compliance decisions. I conducted a 2x2 fully crossed experiment involving 331 self-employed taxpayers. These taxpayers have opportunities to evade that employed taxpayers do not. For example, they can earn cash income that is not reported to the IRS by third parties. For self-employed taxpayers (especially those wanting to evade), perceived selection and enforcement risks may be distinctly different depending on a taxpayer’s situation, what they believe they can control, and what risk they are willing to accept. For example, selection risk may be perceived as the greatest risk for those with unreported items on their return, while enforcement risk may be more prominent for those perceiving certain levels of selection risk. Thus, I believe self-employed taxpayers are the most appropriate population to sample from and are likely have reasonable variation in the three personal factors of interest. I find that taxpayers do differentiate between selection and enforcement risks but the difference only manifests for taxpayers in certain decision domains. Taxpayers in a refund position (i.e. conservative mindset) had a greater sensitivity to the form of payment (cash vs. check) and appeared to use this information to make inferences about enforcement risk which was significantly different from their perceptions of selection risk. Conversely, tax due taxpayers (i.e. aggressive mindset) appeared to overlook the form of payment and did not assess these two risks as significantly different. Evaluating the full sample suggests that both selection risk and enforcement risk have a positive influence on compliance. Further, these risks interact to influence compliance. Specifically, compliance is greatest when taxpayers perceive a high likelihood of being selected for an audit and enforcement risk only matters when selection risk is low. This finding is interesting and suggests that avoiding interaction with the IRS is a primary objective of taxpayers. In line with my findings of taxpayers perceiving different risks in refund and tax due positions, the influence of risk perceptions on compliance differed for taxpayers in these positions. Refund taxpayers were influenced by both selection and enforcement risk, similar to the full model; however, tax due taxpayers were only influenced by selection risk and appeared to completely overlook enforcement risk when making their reporting decision. Lastly, the study shows that personal characteristics can also influence compliance in the presence of economic and environmental determinants, but some characteristics only manifest in specific decision domains. Of the three personal characteristics investigated, only mental accounting orientation was a significant predictor for the full sample. When the sample was split by decision domain, only proactivity was a predictor of compliance for refund taxpayers, while only mental accounting orientation was a predictor of compliance for due taxpayers. While I did not find results for narcissism and compliance, my subsequent analysis suggests that individual dimensions of narcissism may be better predictors of compliance than the full measure. Specifically, the exploitation dimension was a significant predictor of compliance for those in a tax due position. This study make several contributions to the accounting and tax literatures. First, this study provides support for a two-construct conceptualization for perceived detection risk that includes both selection and enforcement risks. Second, it answers calls to investigate more comprehensive compliance models and finds economic, environmental, and personal characteristics individually and interactively influence compliance. Third, this study investigates three personal factors that have not been investigated in the tax compliance literature. Finally, this study answers calls for research on self-employed taxpayers and suggests that the IRS will be more successful in increasing compliance by playing on taxpayers’ aversion to being selected for an examination than communicating information on the IRS’ ability to detect noncompliance during an examination. digital.library.unt.edu/ark:/67531/metadc849613/
Physician Leadership and Self Efficacy: A Case Study Using Grounded Theory
Bombarded by constant and rapid change, healthcare organizations feel a sense of urgency to meet their needs for leaders. They rely on physicians to lead at all levels in their healthcare organizations. For them to successfully navigate today's healthcare environment, they require more than a medical education. To address this need, healthcare organizations are developing in-house leadership development programs.In this paper, I conduct a case study of physicians transitioning into leadership and their self-efficacy facilitated through an in-house leadership development program. Documentation, semi-structured interviews, and observations are examined to explore how physicians think about their leadership experiences following their participation in a six-month leadership development program.The study also explores at a high-level how these experiences influenced physician's self-efficacy as a first step in developing a theory of physician leadership and self-efficacy. digital.library.unt.edu/ark:/67531/metadc849695/
Interfacial Electrochemistry of Cu/Al Alloys for IC Packaging and Chemical Bonding Characterization of Boron Doped Hydrogenated Amorphous Silicon Films for Infrared Cameras
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We focused on a non-cooling room temperature microbolometer infrared imaging array device which includes a sensing layer of p-type a-Si:H component layers doped with boron. Boron incorporation and bonding configuration were investigated for a-Si:H films grown by plasma enhanced chemical deposition (PECVD) at varying substrate temperatures, hydrogen dilution of the silane precursor, and dopant to silane ratio using multiple internal reflection infrared spectroscopy (MIR-IR). This study was then confirmed from collaborators via Raman spectroscopy. MIR-IR analyses reveal an interesting counter-balance relationship between boron-doping and hydrogen-dilution growth parameters in PECVD-grown a-Si:H. Specifically, an increase in the hydrogen dilution ratio (H2/SiH4) or substrate temperature was found to increase organization of the silicon lattice in the amorphous films. It resulted in the decrease of the most stable SiH bonding configuration and thus decrease the organization of the film. The new chemical bonding information of a-Si:H thin film was correlated with the various boron doping mechanisms proposed by theoretical calculations. The study revealed the corrosion morphology progression on aluminum alloy (Al, 0.5% Cu) under acidic chloride solution. This is due to defects and a higher copper content at the grain boundary. Direct galvanic current measurement, linear sweep voltammetry (LSV), and Tafel plots are used to measure corrosion current and potential. Hydrogen gas evolution was also observed (for the first time) in Cu/Al bimetallic interface in areas of active corrosion. Mechanistic insight that leads to effective prevention of aluminum bond pad corrosion is explored and discussed. (Chapter 4) Aluminum bond pad corrosion activity and mechanistic insight at a Cu/Al bimetallic interface typically used in microelectronic packages for automotive applications were investigated by means of optical and scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and electrochemistry. Screening of corrosion variables (temperature, moisture, chloride ion concentration, pH) have been investigated to find their effect on corrosion rate and to better understand the Al/Cu bimetallic corrosion mechanism. The study revealed the corrosion morphology progression on aluminum alloy (Al, 0.5% Cu) under acidic chloride solution. The corrosion starts as surface roughening which evolves into a dendrite structure and later continues to grow into a mud-crack type corrosion. SEM showed the early stage of corrosion with dendritic formation usually occurs at the grain boundary. This is due to defects and a higher copper content at the grain boundary. The impact of copper bimetallic contact on aluminum corrosion was explored by sputtering copper microdots on aluminum substrate. Copper micropattern screening revealed that the corrosion is activated on the Al/Cu interface area and driven by the large potential difference; it was also seen to proceed at much higher rates than those observed with bare aluminum. Direct galvanic current measurement, linear sweep voltammetry (LSV), and Tafel plots are used to measure corrosion current and potential. Hydrogen gas evolution was also observed (for the first time) in Cu/Al bimetallic interface in areas of active corrosion. Mechanistic insight that leads to effective prevention of aluminum bond pad corrosion is explored and discussed. Micropattern corrosion screening identified hydrogen evolution and bimetallic interface as the root cause of Al pad corrosion that leads to Cu ball lift-off, a fatal defect, in Cu wire bonded device. Complete corrosion inhibition can be achieved by strategically disabling the mutually coupled cathodic and anodic reaction cycles. digital.library.unt.edu/ark:/67531/metadc849696/
An Analytical Study of Paradox and Structural Dualism in the Music of Ludwig van Beethoven
Beethoven's rich compositional language evokes unique problems that have fueled scholarly dialogue for many years. My analyses focus on two types of paradoxes as central compositional problems in some of Beethoven's symphonic pieces and piano sonatas. My readings of Beethoven's Piano Sonata No. 27 (Op. 90), Symphony No. 4 (Op. 60), and Symphony No. 8 (Op. 93) explore the nature and significance of paradoxical unresolved six-four chords and their impact on tonal structure. I consider formal-tonal paradoxes in Beethoven's Tempest Sonata (Op. 31, No. 2), Ninth Symphony (Op. 125), and Overture die Weihe des Hauses (Op. 124). Movements that evoke formal-tonal paradoxes retain the structural framework of a paradigmatic interrupted structure, but contain unique voice-leading features that superimpose an undivided structure on top of the "residual" interrupted structure. Carl Schachter's observations about "genuine double meaning" and his arguments about the interplay between design and tonal structure in "Either/Or" establish the foundation for my analytical approach to paradox. Timothy Jackson's reading of Brahms' "Immer leiser word meine Schlummer" (Op. 105, No. 2) and Stephen Slottow's "Von einem Kunstler: Shapes in the Clouds" both clarify the methodology employed here. My interpretation of paradox involves more than just a slight contradiction between two Schenkerian readings; it involves fundamentally opposed readings, that both result from valid, logical lines of analytical reasoning. In my view, paradoxes could be considered a central part of Beethoven's persona and philosophy. Beethoven's romantic endeavors and his relationships with mentors suggest that paradoxes might have been central to his bravura. Furthermore, Beethoven's familiarity with the politics of the French Revolution and Shakespearean literature suggest that paradoxes in some pieces (including the Ninth Symphony) could be metaphorical representations of his ideology. However, I do not attempt to explicitly link specific style features to extra-musical ideas. Modern Schenkerian scholars continue to expand and refine Schenker's formal-tonal models as well as his concept of interruption. In my view, by considering paradox as a focal compositional problem, we can better understand some of the formal-tonal issues and shifting allegiances in Beethoven's music and take another step beyond the rigidity of some paradigmatic formal-tonal prototypes. digital.library.unt.edu/ark:/67531/metadc849697/
Transfer of Instructional Practices From Freedom Schools to the Classroom
The instructional practices of three current classroom teachers who formerly served as Servant Leader Interns (SLIs) in the Children’s Defense Fund Freedom Schools (CDFFS) Program were examined. Haskell (2001) outlined eleven principles of transfer of learning, which were used to survey the levels of transfer established from service in Freedom Schools to practice in the traditional classroom. Individual surveys, The Freedom School Pedagogies Teacher Observation Record (FSPTOR) along with interviews of each participant were used for data collection; all three components were used to triangulate the findings. The findings from this study verified that low transfer was observed when the minimal application of the principles of learning was applied. This study revealed that for transfer to occur at high levels, it is imperative that adherence to all 11 principals is made, and the understanding of transfer, the application of transfer, and reflection on transfer are implemented. If the transfer of instructional practices is a goal of CDFFS for SLIs, the CDFFS program should consider implementing transfer of learning theory in future SLI training. digital.library.unt.edu/ark:/67531/metadc849712/
Unpacking Self in Clutter and Cloth: Curator as Artist/Researcher/Teacher
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This a/r/tographic dissertation offers opportunities to interrogate curator identity and curator ways of being in both public and private spaces. Instead of an authoritative or prescriptive look at the curatorial, this dissertation as catalogue allows for uncertainty, for messiness, for vulnerable spaces where readers are invited into an exhibition of disorderly living. Stitched throughout the study are stories of mothering and the difficulties that accompanied the extremely early birth of my daughter. Becoming a mother provoked my curating in unexpected ways and allowed me to reconsider the reasons I collect, display, and perform as a curator. It was through the actual curating of familial material artifacts in the exhibition Dress Stories, I was able to map the journey of my curatorial turns. My engagement with clothing in the inquiry was informed by the work of Sandra Weber and Claudia Mitchell, where dress as a methodology allows for spaces to consider autobiography, identity, and practice. It was not until the exhibition was over, I was able to discover new ways to thread caring, collecting, and cataloging ourselves as curators, artists, researchers, teachers, and mothers. It prompts curators and teachers to consider possibilities for failure, releasing excess, and uncaring as a way to care for self, objects, and others. digital.library.unt.edu/ark:/67531/metadc849713/
A Spatial Econometric Study Examining the Determinants of Principal Salaries
The lack of evidence on reforms, such as determinants of principal salary, points to data and research deficiencies to be addressed in order to learn more about their effects and make sound public policies. The purpose of the study was to examine district and community determinants of principals’ salaries using a spatial econometric framework. The findings have implications for education policy development related to pay for contribution, rather than pay based on tenure, experience, or district wealth. The quantitative study used a spatial regression approach to model school, district, and community factors as determinants of Texas high school principal’s salary. Principal salaries are viewed from several lenses in this study by considering effective outcomes of pay defined by actual salaries and market considerations for pay as defined by community, organizational and human capital variables. Literature from the private sector as well as from the public school setting was used as a theoretical underpinning for the hypotheses set forth in this study. The findings provide empirical insights regarding how principal salaries are determined. The study found a statistically significant spatial autocorrelation relationship at p<.05 confirming geographic locations is a robust influence on principal salaries. After controlling for the spatial autocorrelation the study also found experience, gender, district wealth, and campus size significantly influence principal salaries. However, there was no statistically significant relationship between principal salary and student achievement. . digital.library.unt.edu/ark:/67531/metadc849698/
Accelerated Degree Program Faculty: Motivation to Teach
Adult educators are a growing part of American higher education. Because of their increasing prominence in adult education, it is essential to understand what roles these educators play and what motivates them to remain in the profession despite poor work prospects and conditions. Research to date, however, focuses primarily on the adult learner and not the adult educator. The purpose of this qualitative, multiple-case study was to explore the role and motivation for teaching of adult educators employed as adjunct faculty in an accelerated degree program at a small, liberal arts college in the northwest United States. Purposeful sampling was used to select the five participants for the study. All participants taught in the program for more than five years and were considered to be successful in their positions by peers, students, and administrators. The study employed a preliminary demographic survey to solicit initial background data on the instructors. Other data collection included in-depth, open-ended, face-to-face interviews, document analysis, and classroom observation. The results showed that all five participants identified the following roles and assumed them in the classroom: (a) facilitator, (b) listener, (c) specialist, (d) guide, (e) adviser, and (f) co-learner or colleague. Further results showed that all five participants were motivated to teach in the program for reasons other than monetary compensation. Although participants shared different levels of personal commitment to the institution, they all expressed extensive commitment to teaching, their discipline, and students. Motivating factors for teaching were (a) opportunity to teach part time, (b) love for the subject, (c) opportunity to gain more expertise in the field, (d) opportunity to grow and learn, (e) opportunity to give back, and (f) student success and growth. A major practical implication of this study is that adjunct faculty in an adult education program are motivated to teach for different reasons, but the primary motivation can be seen as altruistic versus monetary and practical. If college administrators want to produce and retain successful adjunct faculty, they must recruit and hire those individuals whose motivation for teaching is altruistic with a desire to enrich the lives of students. digital.library.unt.edu/ark:/67531/metadc849699/
Master Therapists' Decision Making Process Concerning Adolescent Confidentiality: A Grounded Theory Approach
Ethical codes and laws provide counselors with guidance for how to approach confidentiality, but there is a gap in the literature surrounding counselors' process of decision-making when managing confidentiality with a adolescent clients. This study explored the decision-making process of master therapists concerning adolescent clients. I conducted semi-structured interviews with peer identified master therapist (N=10), all of whom were licensed professional counselors with 15 or more years of counseling experience and whose case load contained 25% or more adolescent clients. Participants included seven females and three males; nine participants identified as Caucasian, and one participant identified as Hispanic. Participants ages ranged from 39-61. I analyzed the data, along with two research partner, according to Grounded Theory (GT) methodology. Through constant comparative analysis, a grounded theory emerged from the data in which participants converged understanding of client safety, relationships, clinical intuition in a process of integrated experience and consultation. With the exception of mandated reported and mortal danger, ethical guidelines and laws did not seem to factor into participants' decision making. Implications for counseling practice, preparation, and research are provided. digital.library.unt.edu/ark:/67531/metadc849705/