The first study project is based on modeling Earth abundant 3d transition-metal methoxide complexes with potentially redox-noninnocent ligands for methane C–H bond activation to form methanol (LnM-OMe + CH4 → LnM–Me + CH3OH). Three types of complex consisting of tridentate pincer terpyridine-like ligands, and different first-row transition metals (M = Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) were modeled to elucidate the reaction mechanism as well as the effect of the metal identity on the thermodynamics and kinetics of a methane activation reaction. The calculations showed that the d electron count of the metal is a more significant factor than the metal's formal charge in controlling the thermodynamics and kinetics of C–H activation. These researches suggest that late 3d-metal methoxide complexes that favor σ-bond metathesis pathways for methane activation will yield lower barriers for C–H activation, and are more profitable catalyst for future studies. Second, subsequently, on the basis of the first project, density functional theory is used to analyze methane C−H activation by neutral and cationic nickel-methoxide complexes. This study identifies strategies to further lower the barriers for methane C−H activation through evaluation of supporting ligand modifications, solvent polarity, overall charge of complex, metal identity and counterion …

This study investigates how different guitarists introduced saxophone-like phrasing into the improvisatory and compositional vocabulary of jazz guitar through their collaborations with saxophonists. This research presents a comparative analysis of phrasing, articulation, and melodic design in solo improvisations. The mixed approach to this study includes analysis of motives, voice leading, articulation, length of phrases, melodic contour, and the execution of bebop vocabulary on the guitar. The findings are based on original transcriptions from significant recordings by guitar-saxophone pairs. These highlight the similarities between and adaptations of musical devices from saxophonists Stan Getz, Jimmy Giuffre, and Joe Lovano into the jazz guitar styles of Jimmy Raney, Jim Hall, and John Scofield. This study supports the argument that the evolution of modern jazz guitar playing is directly connected to the adaptation of saxophone-like phrasing at an improvisatory and compositional level. It also shows that the concept of style in jazz flows between different instruments' lineages. Understanding these findings provides a more complex and accurate concept of the development of style in jazz.

During the Great Depression, for the first time in its history, the federal government provided relief to the unemployed and destitute through myriad New Deal agencies. This dissertation examines how "general relief" (direct or "make-work") from federal programs—primarily the Emergency Relief and Construction Act (ERCA) and Federal Emergency Relief Administration (FERA)—was acquired and administered by the government of Texas through state administrative agencies. These agencies included the Chambers of Commerce (1932-1933), Unofficial Texas Relief Commission (1933), Texas Rehabilitation and Relief Commission (1933), Official Texas Relief Commission (1933-1934), Texas Relief Commission Division of the State Board of Control (1934), and the Department of Public Welfare (1939). Overall, the effective administration of general relief in the Lone Star State was undermined by a political ideology that persisted from, and was embodied by, the "Redeemer" Constitution of 1876.

The purpose of this study was to explore adolescent self-views of singing ability through both implicit theories and self-concept meaning systems. A secondary purpose of this study was to examine these self-views specifically in the context of a choral hierarchy. Using a researcher-designed survey instrument, I gathered data from middle- and high-school students currently enrolled in a choir program organized in a hierarchical structure. I analyzed descriptive statistics of survey responses to items designed to measure implicit theories of singing ability, singing self-concept, and goal orientation. I also examined differences among participants by ensemble placement in implicit theory and self-concept scores, correlation between implicit theory and self-concept, and whether implicit theory, self-concept, goal orientation, or current enrollment could predict future enrollment decisions. In addition to these quantitative measures, I coded open-ended responses to two failure scenarios and examined participant responses by ensemble and gender. Both implicit theory and self-concept scores were higher for participants at the top of the choral hierarchy than at the bottom. Open-ended responses, however, did not align with the implicit theory scale and a number of students presented a false growth mindset. Open-ended responses also indicated that failure scenarios were likely to result in an altered …

The flypaper effect states that grants-in-aid increases public spending more than a comparable increase in personal income. If aid increases spending, then there is the possibility that it displaces own-source revenue or a portion of the aid itself is used to meet other priorities of governments, fungibility. Different local government structures have the tendency to prioritize either the operating or capital budget. Empirical evidence shows that federal and state grants have different flypaper effect. While fungible state aid is allocated to the operating budget, that of federal goes to the capital budget. Council-manager and mayor-council form of governments do not allocate fungible intergovernmental aid differently between the capital and operating budgets.

Hendrik Hofmeyr is considered one of the most important and influential living composers in South Africa. His music for solo saxophone is not well-known in the classical saxophone repertoire. His four works for solo saxophone (Concerto per saxofono contralto e orchestra, Concerto per saxofono baritono e orchestra, Partita canonica, and Necromancer) are substantial and terrific repertoire for the instrument. This study is intended to inform a saxophone performer's understanding of these compositions through analysis of form, melodic, and harmonic content relevant to performance; and, demonstrate through example the conclusions determined by the analysis about apparent compositional techniques in the music.

The purpose of this document is to investigate how trumpet students at the University of North Texas experience music performance anxiety and to find out how professors prepare students for controlling music performance anxiety experiences. The interviewees were ten undergraduates and ten graduate students, as well as three trumpet professors who teach at the University of North Texas. The questionnaire responses of the student interviewees were examined, and literature is provided that address the most common performance related psychological and physiological symptoms experienced by the trumpet students. Effective and healthy strategies are discussed that were offered by the trumpet professors, and suggestions are made regarding potential benefits and detriments of trumpet performance anxiety.

Students' self-determination (SD) can positively influence their ability to make choices in planning for their future. The current study is a preliminary validity study on the most recent 21-item version of Shogren and Wehmeyer's Self-Determination Inventory: Student Report (SDI-SR). The SDI-SR was administered to 316 students (ages 13-22) and results were examined with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Results of the EFA on a 7-factor solution (TLI = 0.97; RMSEA = 0.04; SRMR = 0.02) aligned with the theoretical basis for the SDI:SR as well as results for the 7-factor CFA using simulated data (TLI = 0.913; RMSEA = 0.047; SRMR = 0.072 and CFI = 0.931); however, the CFA 7-factor solution results on the present study data were slightly lower than what is considered acceptable model fit (TLI = 0.883; RMSEA = 0.04; RMSR = 0.047). These results combined suggest that theory-based 7-factor solution does capture seven latent constructs in this data. A CFA was also conducted with a 5-factor structure based on factor loading from an EFA using the present research data resulting in a better model fit (TLI = 0.912; RMSEA = .075; SRMR = 0.046; and CFI = 0.940) as well as …

The direct epitaxial growth of multilayer BN by atomic layer deposition is of critical significance forfo two-dimensional device applications. X-ray photoelectron spectroscopy (XPS) and low energy electron diffraction (LEED) demonstrate layer-by-layer BN epitaxy on two different substrates. One substrate was a monolayer of RuO2(110) formed on a Ru(0001) substrate, the other was an atomically clean Ni(111) single crystal. Growth was accomplished atomic layer deposition (ALD) cycles of BCl3/NH3 at 600 K substrate temperature and subsequent annealing in ultrahigh vacuum (UHV). This yielded stoichiometric BN layers, and an average BN film thickness linearly proportional to the number of BCl3/NH3 cycles. The BN(0001)/RuO2(110) interface had negligible charge transfer or band bending as indicated by XPS and LEED data indicate a 30° rotation between the coincident BN and oxide lattices. The atomic layer epitaxy of BN on an oxide surface suggests new routes to the direct growth and integration of graphene and BN with industrially important substrates, including Si(100). XPS and LEED indicated epitaxial deposition of h-BN(0001) on the Ni(111) single crystal by ALD, and subsequent epitaxially aligned graphene was deposited by chemical vapor deposition (CVD) of ethylene at 1000 K. Direct multilayer, in situ growth of h-BN on magnetic substrates such as …

In 1964, Benjamin Britten met the multi-instrumentalist twins Zoltán and Gábor Jeney while traveling in Budapest. At their behest, Britten composed Gemini Variations: Twelve Variations and Fugue on an Epigram by Kodály, a work which exploited the brothers' abilities on multiple instruments: Zoltán on flute and piano, and Gábor on violin and piano. In foreseeing the difficulties of programming this work, Britten simultaneously arranged a version for four players: flute, violin, and four-hand piano, eliminating the need for switching instruments. Despite this arrangement, as well as a very public and highly anticipated premiere at the Aldeburgh Festival in 1965, Gemini Variations has remained neglected by performers and scholars alike. This document serves to 1) promote a work that can justifiably be considered as part of the chamber music repertoire involving flute; 2) advocate for its musical merit and appropriateness for chamber music concerts made up of more traditional groups of players; 3) compare the two-player and four-player versions Britten wrote; and 4) explore the likely reasons why a piece by one of the most celebrated composers of the twentieth century has remained largely ignored for over fifty years.

In this paper, I explore the early musical language of McCoy Tyner. Today, Tyner is recognized mostly for his use of quartal harmony and pentatonic scales despite having made recordings in his early career that reflect a more mainstream approach. In an effort to expand how Tyner is represented, I argue that Tyner's early style was characterized by a graceful balance of tradition and innovation, a masterful blend of bebop syntax with pentatonic melodies and quartal harmonies. The recordings that I analyze and discuss are: "Effendi," "Cousin Mary," and "Newport Romp." I transcribed and analyzed selected portions of these recordings in order to better understand his early musical language as a soloist from 1962 to 1963. A portion of this paper is focused on the early reception of Tyner, which acknowledged him as an accomplished mainstream player with a firm grasp of the jazz tradition. Ultimately, my analysis shows that Tyner's early style was a balance of tradition and innovation, incorporating bebop syntax, pentatonic melodies, and quartal harmonies.

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.

This dissertation examines a recent work for flute and piano, Here Everything Shines, by a living composer, Charlotte Bray, including a study, analysis and performance guide. The composition was largely inspired by the late Cape Verdean singer Cesária Évora and her song Petit Pays. My research explores the influence of Évora's song on Here Everything Shines, including the melodic development, tonal center, style and freedom of her singing and the impact the song has on a performer's interpretation of Here Everything Shines. The study examines the text of the song, the emotions evoked and reflects on the compositional elements in Here Everything Shines. Originally written for flute and guitar and commissioned by Tom Kerstens for International Guitar Foundation, Here Everything Shines was published in 2015. Bray transcribed it for violin and piano at request of Darragh Morgan and Mary Dullea and subsequently for flute and piano at my request. This dissertation compares the three versions for flute and guitar, violin and piano, and flute and piano and examines the variations between flute and violin as well as guitar and piano parts. The performance guide includes the composer's input on both interpretation and implementation of her ideas throughout the work.

Human life is to be universally cherished and valued. Policies about how to value lives are often developed following gross human rights violations. Some of the most horrific violations have occurred under the guise of biomedical and behavioral research. As a result, policies have been developed to protect participants. Presumably, the primary responsibility of the researcher is their protection. There are, however, potential tensions between protections and research agendas, which set the occasion for over selection of participants with vulnerabilities. This dynamic may establish competing contingencies that devalue, and potentially harm, participants. Power imbalances inherent in the researcher-participant relationship establish the researcher as the dominant knowledge seeking authority and the participant as the subservient subject. Ideally, research in applied behavior analysis is driven by a steadfast orientation toward the enhancement of human life and the amelioration of suffering. The purpose of this paper is to present an analysis of human rights trends in the Journal of Applied Behavior Analysis. The dependent measures are based on ethical principles established for the protection of participants and recommendations concerning participatory research practices in applied behavior analysis. The results indicate that in some cases, protections have been minimally reported. Furthermore, power imbalances are highly …

The current study focused on dyadic discrepancy, the difference between two individuals. A Monte Carlo simulation was used to compare three dyadic discrepancy estimation methods across a variety of potential research conditions, including variations on intraclass correlation, cluster number, reliability, effect size, and effect size variance. The methods compared were: raw score difference (RSD); empirical Bayes estimate of slope in multilevel modeling (EBD); and structural equation modeling estimate (SEM). Accuracy and reliability of the discrepancy estimate and the accuracy of prediction when using the discrepancy to predict an outcome were examined. The results indicated that RSD and SEM, despite having poor reliability, performed better than EBD when predicting an outcome. The results of this research provide methodological guidance to researchers interested in dyadic discrepancies.

A quantitative, causal-comparative study between single gender and traditional mixed gender schools was conducted to examine how single gender schooling affected the academic achievement of African American males in a high-poverty urban community. This study examined the differences in TSI and EOC scores between African American males who attended a single gender male high school and a traditionally mixed gender high school serving students in the same community in Fort Worth, Texas. A two sample t-test was used to compare the STAAR and TSI scores of the two groups of African American males. Microsoft Excel was used to collect the descriptive statistical data and analysis was conducted in SPSS version 25.0 for Windows. A detailed description of the participants, the research design that was used in the study, a description of instruments that was used to analyze the data, research problem, research questions on which the study was based, and a description of data analysis methods that was used. This quantitative research compared the STAAR and TSI scores in language arts, math, and reading. The findings of study indicate the single-gender school model impacts the academic achievement of African American males in a particular community in Fort Worth, Texas. The …

This work discusses applications of computational simulations to a wide variety of chemical systems, to investigate intermolecular interactions to develop force field parameters and gain new insights into chemical reactivity and structure stability. First, we cover the characterization of hydrogen-bonding interactions in pyrazine tetracarboxamide complexes employing quantum topological analyses. Second we describe the use of quantum mechanical energy decomposition analysis (EDA) and non-covalent interactions (NCIs) analysis to investigate hydrogen-bonding and intermolecular interactions in a series of representative 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) ion pairs extracted from classical equilibrium and non-equilibrium molecular dynamics simulations. Thirdly, we describe the use of multipolar/polarizable AMOEBA force field to study the extraction of benzene from a gasoline model employing 1,3-dimethylimidazolium tetrafluorobrorate, [DMIM][BF4], and ethylmethylimidazolium tetrafluorobrorate, [EMIM][BF4]. Fourthly, we cover the recent improvements and new capabilities of the QM/MM code "LICHEM". Finally, we describe the use of polarizable ab initio QM/MM calculations and study the reaction mechanism of N-tert-butyloxycarbonylation of aniline in [EMIm][BF4], and ground state destabilization in uracil DNA glycosylase (UDG).

The field of vector-borne disease research uses multidisciplinary approaches to help understand complicated interactions. This dissertation, covers three different aspects of tick-borne disease research which all focus on exploring tick-borne diseases in the non-endemic areas of Denton, County Texas and the state of Texas with a focus on Rickettsia spp. These aspects include tick sampling, testing ticks for the presence of Rickettsia spp., and creating species distribution maps of the Rickettsia spp. Rickettsia amblyommatis and tick species Amblyomma americanum.

Lionel Daunais was an eminent and beloved 20th-century Québécois musician who contributed greatly to the performing arts in Canada. Through his work with the Trio Lyrique, Les Variétés Lyriques, and his numerous compositions, he wielded a potent sphere of influence on the Canadian musical landscape. Lionel Daunais's compositions constitute a significant oeuvre, comprising solo vocal works, song cycles, folksong arrangements, individual choral works, and multi-movement choral works. Marked by irresistible wit, the melodicism of French mélodie, and the absolute eminence of the text, Figures de danse is his most well-known multi-movement choral work. Daunais penned the earliest extant version of Figures de danse in 1947, however, the work emerged into Québec's choral scene in the mid-1970s via the establishment of the Alliance des Chorales du Québec. This set of tragicomic caricatures, which sets beautiful choral and piano writing to clever—and sometimes hilariously nonsensical—texts by Daunais himself, is accessible for performance by youth choirs, community choirs, university choirs, and professional choirs alike. Unfortunately, various factors (e.g. the separation of the choral and piano scores, local references, and score errors) often stymie its performance. The purpose of this dissertation is to ameliorate these challenges via a conductor's guide and to advocate for …

Composed exclusively in the last decade, Joshua Rist's works have received significant performances by numerous high-profile ensembles including prominent high school, collegiate, and community choirs. Although conductors continue to program his works with increased frequency, minimal scholarly work is published about this music and its composer. The quality of Rist's body of work coupled with a scarcity of scholarly research provides opportunity for further study. Closer examination of Rist's works could provide a framework for conductors who perform his music. This study provides background and bibliographic information on the composer. It contains a review of choral works by Rist highlighting critical elements within each work that provide a framework for future performances of his works. This dissertation identifies stylistic characteristics that define Rist's compositional style. Additionally, it highlights the evolution of Rist's artistic growth and development.

Current evidence suggests that thyroid hormones (THs) may impact development of the immune system. However, studies that explore the role of THs in immune development are limited, and the mechanisms leading to alterations in immune function are poorly understood. It is important to elucidate the role of THs in immune development given that many environmental contaminants have been shown to disrupt TH homeostasis and may also have negative impacts on the immune system. As such, the main goal of this study was to determine the long-term consequences of early life stage (ELS) hypothyroidism on immune function. To achieve this goal, it was first necessary to further characterize basic immune function in the selected model species, the fathead minnow (FHM, Pimephales promelas). Preliminary studies were conducted to describe the transcriptomic response to Yersinia ruckeri and adapt assays for the assessment of respiratory burst and phagocytic cell activity. To determine the long-term effects of ELS hypothyroidism, FHMs were exposed to the model thyroid suppressant propylthiouracil (PTU) from <1 to 30 days post hatch and reared under normal conditions. Upon reaching adulthood, ex vivo immune cell function and the in vivo immune response to Y. ruckeri were assessed. Fish exposed to PTU experienced …

Given the growing number of socially conscious and ethical consumers, brands have been taking a strategic approach to corporate social responsibility (CSR) by integrating socially responsible activities into the brand's core value proposition in order to remain relevant in the marketplace and drive brand equity. Extant research on CSR has investigated its effect on various consumer behavior outcomes. However, from a brand-building perspective, there is still a lack of understanding on how to effectively leverage CSR, and not enough directions on how to overcome its challenges in order to build brand equity. Therefore, through three essays, the objective of this dissertation is to provide a deep understanding of the effect that CSR has on brand equity while revealing brand-building strategies that can be implemented to effectively leverage CSR, specifically within the (1) global, (2) luxury, and (3) co-creation contexts.

Across the United States, African American males face barriers to securing a quality education. Barriers such as educational gatekeeping, and low identification, have caused African American males' enrollment in advanced placement courses to be at a rate lower than all other ethnicity and gender populations. A qualitative approach to research was used to explore how and in what ways district and school leaders created or hindered equitable advanced academic program opportunities for African American males. Through the lens of critical social theory, individual face-to-face interviews with district/campus educators and a focus group interview with African American male students, the lived experiences of participants within the advanced placement program were brought to the fore. Three questions guided the study: 1) How do district and school policies and practices create equitable advanced academic program opportunities for African American males; 2) How and in what ways do district and school leaders create or hinder equitable advanced academic program opportunities for African American males; and 3) What conditions have supported or hindered African American males in their ability to enroll and succeed in advanced academic courses. Findings revealed four themes to creating equity for African American males within the advanced placement program which included, …

Edward C. Fritz was one of the most influential environmentalists in Texas history. Although he took a circuitous route to environmental activism, Fritz evolved into a powerful force fighting on behalf of Texan nature. Participating in substantial actions throughout the second half of the twentieth century, Fritz's contributions to environmental activism resulted in the successful preservation of thousands of acres and multiple wildlife species. Fritz parlayed his legal background into effective activism, beginning his career with a successful lobbying campaign for protection of Harris Hawks. He led the campaign to stop a decades old plan for canalization of the Trinity River. The creation of COST combined Fritz's environmental focus with the concerns of economic conservatives to prevent a billion dollar government funded project that would have significantly altered the river. Fritz then led a cadre who took over efforts to establish a preserve in the Big Thicket national forest. He oversaw the foundation of a protected area far larger than original expectations, capitalizing on the growing awareness of environmental issues in the 1970s. Fritz's interest in the Big Thicket led to a fight against the Forest Service's practice of clearcutting and its effect on Red Cockaded Woodpeckers. Through litigation and …