There is a lack of anxiety relief methods used in the hospitality workplace. This study examines the effectiveness of two forms of anxiety relief through four different methods. The data collection took place in classroom environments at the University of North Texas and the University of New Orleans, both of which are located in southern USA. The independent variables are the recovery method, the mediator variables are restorativeness and emotional improvement, and the dependent variables are negative job affects, positive job affects, turnover intention, and job commitment. Professors were asked for some time during their lecture to conduct the experiment in a classroom environment during the students' class time. Eight classes were visited, with each class being exposed to a designated anxiety relief method. The anxiety relief methods consisted of using a virtual reality headset with sound, virtual reality headset without sound, nature pictures with sound, and nature pictures without sound. Results of 206 usable surveys indicated virtual reality recovery method evoked higher levels of restorativeness than picture recovery method. Restorativeness partially mediated the effects of positive job affects and job commitment. lastly, emotional improvement partially mediated the effects of negative job affects, positive job affects, and turnover intention.

This dissertation examines the behavior of post-civil war governments and explores how the aftermath of civil war not only influences state behavior but how the previous conflict becomes institutionalized through a state's governance decisions. While post-civil war states will each have different governance needs as they endure the post-conflict environment, this dissertation contends that the governance decisions a state chooses are key to understanding, and potentially predicting, future government behavior. Further, it is important to recognize the role that the previous civil war plays towards shaping a state's governance decisions and the opportunities available.

The purpose of this study was to evaluate the benefit accrued to fifth-grade students who participated in a summer school accelerated instruction program utilizing accelerated instructional practices in a Texas school district. The secondary intent was to determine the program's effect on student regression or retention as measured by Measures of Academic Progress (MAP) scores and State of Texas Assessment of Academic Readiness (STAAR) tests in reading and mathematics. The district provided summer accelerated instruction to fifth-grade students who did not pass reading and/or mathematics portions of STAAR for the May administration. For this study, I focused on the 2018 summer accelerated instruction offered by the district, using a mixed methods design to analyze the effectiveness of accelerated instruction for the students who participated in the summer program. A paired samples t-test was conducted to evaluate if students who failed the May STAAR in either reading or mathematics increased their scores on the June STAAR. Also, a paired samples t-test was conducted to determine if these same students increased their fall MAP test when compared to the spring MAP test. Teachers were interviewed to determine their perceptions of the most beneficial parts of summer school for students who attended. The …

In May of 2002, Wichita Falls ISD, a district in Texas with a stagnate enrollment of 14,000 students for multiple years, asked for the community to support a $120 million bond to help cover the cost of four new elementary campuses and to maintain and upgrade aging facilities. The bond failed. Additionally, a 2004 bond failed again. Finally, in 2006, the district is finally able to pass a $60 million bond and only includes two new elementary campuses and no funding to address the aging facilities. At the same time, other districts in fast growing areas of Texas are able to pass school bonds with little to no issues. This begs the question, is there a formula for getting school bonds passed? The purpose of this study is to discover what key factors influence a bond package; to help find those answers, eight districts in Texas were selected, five considered to be a fast-growth district" and three considered to be no-growth district. The study used a qualitative research approach, using semi-structured interviews with 24 participants. After all factors were analyzed, a pattern and recommendation is developed for districts to follow allowing a high degree of success for school bonds.

Rational Catalan combinatorics connects various Catalan numbers to the representation theory of rational Cherednik algebras for Coxeter and complex reflection groups. Lewis, Reiner, and Stanton seek a theory of rational Catalan combinatorics for the general linear group over a finite field. The finite general linear group is a modular reflection group that behaves like a finite Coxeter group. They conjecture a Hilbert series for a space of invariants under the action of this group using (q,t)-binomial coefficients. They consider the finite general linear group acting on the quotient of a polynomial ring by iterated powers of the irrelevant ideal under the Frobenius map. Often conjectures about reflection groups are solved by considering the local case of a group fixing one hyperplane and then extending via the theory of hyperplane arrangements to the full group. The Lewis, Reiner and Stanton conjecture had not previously been formulated for groups fixing a hyperplane. We formulate and prove their conjecture in this local case.

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, …

Complimentary and alternate medicine, especially Ayurveda is gaining popularity in United States. However, there are various barriers that people face in adopting Ayurvedic practices into their lives and making cultural, familial and societal changes to better their health. This research explores these relationships and barriers behind why some people adopt and are able/unable to sustain Ayurvedic practices in the presence of traditional bio-medicine.

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 …

Donor-acceptor systems have unique properties that make them ideal candidates for solar energy harvesting through mimicry of natural photosynthesis. This dissertation is focused on unraveling those unique properties in various types of donor-acceptor systems. The systems investigated are categorized as closely linked, push-pull, supramolecular, and multi-unit. As part of the study, photosynthetic analogues based on BF2-chelated dipyrromethene (BODIPY), porphyrin, phthalocyanine, truxene, ferrocene, quinone, phenothiazine (PTZ), perylenediimide (PDI), fullerene (C60), dicyanoquinodimethane (DCNQ), tetracyanobutadiene (TCBD), and triphenylamine (TPA) are investigated. The effects of proximity between donor-acceptor entities, their geometrical orientation relative to each other, push-pull character of substituents, and competitive energy and electron transfer are examined. In all systems, primary events of photosynthesis are observed, that is absorption and energy transfer and/or electron transfer is witnessed. Ultrafast transient absorption spectroscopy is utilized to characterize the photo-induced events, while other methods such as steady-state luminescence, cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and computational calculations are used to aid in the characterization of the donor-acceptor systems, in particular their applicability as solar energy harvesters.

With the rapid development of wireless communication technology, the demands for higher communication rates are increasing. Higher communication rate corresponds to higher DoF. Interference alignment, which is an emerging interference management technique, is able to substantially increase the DoF of wireless communication systems. This thesis mainly studies the delay-based interference alignment technique. The key problem lies in the design of the transmission scheme and the appropriate allocation of the propagation delay, so as to achieve the desired DoF of different wireless networks. In addition, through delay-based interference alignment, the achievability of extreme points of the DoF region of different wireless networks can be proved.

The aim of this thesis is to narrate and analyze lynching and atypical violence in Denton County, Texas, between 1920 and 1926. Through this intensive study of a rural county in north Texas, the role of law enforcement in typical and systemic violence is observed and the relationship between Denton County Officials and the Ku Klux Klan is analyzed. Chapter 1 discusses the root of the word lynching and submits a call for academic attention to violence that is unable to be categorized as lynching due to its restrictive definition. Chapter 2 chronicles known instances of lynching in Denton County from its founding through the 1920s including two lynchings perpetrated by Klavern 136, the Denton County Klan. Chapter 3 examines the relationship between Denton County Law Enforcement and the Klan. In Chapter 4, seasons of violence are identified and applied to available historical records. Chapter 5 concludes that non-lynching violence, termed "disappearances," occurred and argues on behalf of its inclusion within the historiography of Jim Crow Era criminal actions against Black Americans. In the Prologue and Epilogue, the development and dissolution of the St. John's Community in Pilot Point, Texas, is narrated.

Much socialist realism art from Soviet-era Russia has been misunderstood by scholars. It has been considered "synthetic art," which ordinary citizens were forced to admire under the Soviet regime. It also has been interpreted as peasant kitsch art because of its seemingly unacademic and unchallenging theoretical language utilized in order to meet the expectations of Soviet communism. This ideology conditioned artists to make art accessible and nationalistic to serve the perceived needs of the Russian proletariat. Nikolai Rakov (1908-1990), a Soviet-era composer, is also all too often received as a second-class socialist realistic composer. There are, however, other approaches to understanding art created in Soviet Union. Within music scholarship, alternative perspectives on Soviet art remain largely unexplored. It is in that spirit that I turn to Rakov, whose works carry his artistic idea of irresistible beauty, elegance, irony and charm. They evoke colorful images and feelings that draw the audience into Rakov's own compositional world despite his reputation of technical simplicity and uninventive language at a glance. In this dissertation, I therefore turn my attention to the aesthetic side of Rakov's music in order to reevaluate his works. In order to achieve this, I develop and utilize a hermeneutical approach …

Experiences of shame, such as feelings of failure, scorn, ridicule, and embarrassment, all impact a student's successful mastery of academic skills. To identify and understand the shame experiences that impact a student's success, as told from the student's perspective, and determine which factors contribute most to student success, the lenses of the shame resiliency theory and self-determination theory were utilized. This phenomenological qualitative research study explored the struggles associated with shame that students who attended and graduated from a school-of-choice alternative school experienced. In addition, it examined the factors, experiences, and/or constructs related to social and emotional well-being and resiliency that students who attended and graduated from a school-of-choice alternative school identified as most salient regarding their ability to progress through their secondary school years, achieve educational success, and ultimately, graduate from high school. The results of this study add to the body of evidence that supports a shift in the education program from a focus on assessment to SE support for the whole child. Addressing students' academic needs are but one piece of the puzzle. Meeting their social and emotional needs may, however, be even more important, both in the short-term and the long-term for all students, regardless of …

"Improvisation without Accompaniment" is a lyric investigation into the ways that an awareness of mutability and death can clarify or distort our experience of the world. The poems in this collection draw upon the speaker's small-town Texas upbringing to explore broader questions that arise as a consequence of his burgeoning awareness of mortality: What are the moral imperatives for an individual citizen in a larger political community? What are the bidirectional effects of our relationship with place and the environment? Given the painful transience of human experience, what does it mean to live a good life? The book is characterized by psychological poems that illustrate the mind's movement, poems that use syntactic variation and tonal shifts to indicate an openness to changes of heart and mind. "What Passes Here for Mountains," an in-progress poetry manuscript, is driven by a similar impulse to explore the precise ways that our beliefs and opinions affect our immediate experience. These newer poems address anxieties about climate change, the effects of childhood trauma on the adults those children become, and the obstacles to self-actualization.

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.

A collection of short fiction stories that fixate on the role of the strange and the imagined.

A suburban district in the southwestern region of the United States created a choice-based program in which students have the opportunity to address their social, emotional, and academic needs through a mid-day period where they have the ability to attend tutorials or engage in a variety of club and social activities. Each day, students choose the activity that best serves their needs, be those academic, social, or emotional. In order to determine students' attitudes, opinions, and uses of the program in an effort to improve its effectiveness for student success, this qualitative study was planned to respond to the research questions: (1) how do students spend the emPower period? and (2) what are students' thoughts, attitudes, and opinions with regards to emPower? The research began by examining student responses to a previous principal survey asking their opinions on the program. Following the analysis of the survey, focus group sessions of five students from each high school grade were held to discuss student perceptions, choices, and uses of the program. The discussions were audiotaped and transcribed. Thematic data analysis resulted in themes of stress, social life, environment, regulations, choice and tutorials. Findings included a continuum of maturity evident with students' choices …

Emil Behnke was a highly esteemed vocal pedagogue of the late nineteenth century. Perhaps rare for the time, the art and science of teaching vocal methods of speech and singing was a Behnke family business, one that Emil shared with his wife and daughter, who were both named Kate. Indeed, Emil's daughter, Kate Emil Behnke, was equally regarded and valued in the field of vocal pedagogy, carrying her father's teachings into the twentieth century. Meanwhile, the elder Kate Behnke, wife to Emil and mother to Kate Emil, was responsible for administering and building upon her husband's innovative methods of speech therapy, establishing her own reputation as a speech healer. The Behnke family published no less than fourteen books, cumulatively. Largely forgotten today, the purpose of this document is to provide a comprehensive overview of the biography and the pedagogical methods and works of the Behnke family, and to contextualize these methods within the framework of trusted vocal pedagogy, both historic and current.

The purpose of this quantitative study was to provide a valid and reliable instrument that can be used to collect radiologic science faculty members' perceptions of online education. Using a survey modified from an existing study, data were collected concerning faculty perceptions of online education in radiologic sciences. R was used to analyze the survey data through exploratory factor analysis, confirmatory factor analysis, short form optimization, and weighted multiple regression analysis to produce an instrument that exhibits both content and construct validity, is reliable, and is a shortened, optimized version of the original instrument. The findings are discussed and recommendations for future research are provided to begin work broadening this under-researched area in the field of radiologic sciences.

This dissertation analyzes how local governments adapt to the fiscal stress of major disasters. Unifying theories of fiscal stress with emergency management theories, the dissertation presents a model of what influences local governments coping strategy use following disasters. Using new survey data and secondary financial data on cities, counties, and school districts that experienced Hurricane Harvey, findings show that local governments adapt in a variety of ways; of 137 local governments that responded, 66 percent used some number of coping strategies, with only 5 of 62 possible strategies not being used by any local governments. For those which did adapt, they on average used 7.06 strategies, and tended to show a preference towards revenue increasing strategies and rebuilding the community through new capital projects, with less emphasis on expenditure cuts compared to some prior literature findings on fiscal stress. The results indicate that local governments step up and provide new services necessary during the recovery process, to serve their community, despite fiscal stress. A negative binomial model shows partial support for the hypotheses that local governments with lower prior fiscal condition and greater hazard exposure will use more coping strategies. The findings show mixed results on whether institutional rules that …

Current works of bike demand prediction mainly focus on cluster level and perform poorly on predicting demands of a single station. In the first task, we introduce a contextual based bike demand prediction model, which predicts bike demands for per station by combining spatio-temporal network and environment contexts synergistically. Furthermore, since people's movement information is an important factor, which influences the bike demands of each station. To have a better understanding of people's movements, we need to analyze the relationship between different places. In the second task, we propose an origin-destination model to learn place representations by using large scale movement data. Then based on the people's movement information, we incorporate the place embedding into our bike demand prediction model, which is built by using multi-source large scale datasets: New York Citi bike data, New York taxi trip records, and New York POI data. Finally, as deep learning methods have been successfully applied to many fields such as image recognition and natural language processing, it inspires us to incorporate the complex deep learning method into the bike demand prediction problem. So in this task, we propose a deep spatial-temporal (DST) model, which contains three major components: spatial dependencies, temporal dependencies, …

Extant research suggests that some of the potential harms to social bonds during the incarceration experience may be mitigated by visitation. In particular, previous studies have found visitation from family and friends to be significantly related to decreased recidivism rates among adult prisoners. Little is known about the impact of visitation on recidivism among juvenile populations, which this study sought to address. Utilizing data from the Pathways to Desistance study, a series of negative binomial regressions were carried out to observe the potential relationship between maternal and paternal caregiver visitation and post-release self-reported offending among serious juvenile offenders. No significant relationship was found between caregiver visitation and recidivism, contrary to expected results. This held true for both maternal and paternal caregiver visitation as well as both dichotomous and visit count measures. Further research is needed to determine why visitation studies among adult populations do not appear to generalize to juveniles. Visitation quality and nature of the relationship with caregivers should be observed in future studies.

Fusarium head blight (FHB) is an important disease of small grain cereals including wheat that affects grain quality and yield. The fungus Fusarium graminearum (Fg) is the major agent of this disease. Lack of natural resistance has limited ability to control wheat losses to this disease. Developing new approaches is critical for increasing host plant resistance to this fungus. This work has identified four processes that can be targeted for enhancing host plant resistance to FHB. The first involves targeting the pattern-triggered immunity mechanism to promote host plant resistance. Two other approaches involved reducing activity of susceptibility factors in the host to enhance plant resistance. The susceptibility factors targeted include accumulation of the phytohormone jasmonic acid and the 9-lipoxygenase pathway that oxidizes fatty acids. Besides suppressing host defenses against Fg, jasmonic acid also directly acts on the fungus to promote fungal growth. 9- lipoxygenases similarly suppress host defenses to promote fungal pathogenicity. Another approach that was developed involved having the plant express double stranded RNA to target fungal virulence genes for silencing. This host-induced gene silencing approach was employed to target two fungal virulence genes, the lipase encoding FGL1 and salicylate hydroxylase encoding FgNahG, which the fungus secretes into the …

Over the past 25 years, research on the effectiveness of new technologies in teaching has been constantly evolving as teachers try to keep up with educational trends. With the current evolution of technology, it is important to find out how students feel about the use of technologies in both the classroom setting and the non-traditional learning environment. The objective of this project is to determine which applications the students of French 1010 (first semester of college-level French) at the University of North Texas use for language learning to supplement and reinforce the concepts learned in class. Two questions guided this project: (1) what are the new technologies that students in French 1010 use? and (2) if UNT were to implement hybrid classes, would students be interested in taking them? In order to answer these questions, a survey was distributed to 184 students of French 1010 at UNT during the fall 2019 semester. From these surveys, 100 were selected for analysis in the present study, and three students were interviewed as a way to collect additional data. The results of the survey showed that Duolingo was the most used application for language learning purposes, while the interviews showed that the students …