White paper providing general analysis and documentation of results collected by a Qualtrics survey to gather information about metadata assessment practices among digital libraries. It includes an overview of the responses and brief analysis, with some interpretation of trends.

This poster focuses on how to approach collaborative research. Learn how to choose team members, facilitate collaboration and organize all the elements of a project to create a successful publication or presentation. Also included are administrative responsibilities, thoughts on handling problems, examples of delineating responsibilities. It was presented at The Exchange an Association for Library Collections and Technical Services (ALCTS)/Library and Information Technology Association (LITA)/Library Leadership and Management (LLAMA) Collaboration held virtually on May 4, 6, & 8, 2020.

This poster discusses the creation and value of UNT Libraries Serials Transparency List that contains the subscription pricing information they receive from publishers. The list promotes transparency in journal pricing and informed decision-making in collection development. It was presented at The Exchange an Association for Library Collections and Technical Services (ALCTS)/Library and Information Technology Association (LITA)/Library Leadership and Management (LLAMA) Collaboration held virtually on May 4, 6, & 8, 2020.

This research studied the relationship between social capital and household resilience. In particular, how bonding and bridging relationships affect household resilience was the question selected to illustrate this relationship between social capital and household resilience. Moreover, how the vulnerability of household impacts household resilience was also empirically examined. Social capital theory and vulnerability paradigm studies were used to discover explanations for why and how social connectedness and social vulnerabilities impact household resilience. Survey questionnaires were used to collect data in the main two cities in Saudi Arabia, Riyadh and Jeddah. A cross-sectional design was used to collect data. Statistical descriptions and inferences were conducted. In fact, multiple linear regression, T-test, and one way ANOVA were the three principal technics used to make statistical inferences. This study empirically found evidence there are relationships between bonding relationships and household resilience, and also relationships between the economic level of the household and household resilience. However, no evidence was found for relationships between bridging relationships and household resilience, or between other vulnerability factors and household resilience. Other vulnerability factors included gender, minority group, and language.

Intention for this study is driven by finding patterns that may be shown to reveal primary factors of influence for the abundance and diversity of wetland birds. These correlations may be used to promote wetland management strategies for the benefit of waterbird species, and help illuminate current local wetland conditions for waterbirds, respectively. The idea is to help enliven individuals to become a more conscious steward and manipulator of our environment through incorporating structural and biological components into wetland development and management strategies, and broadly speaking, urban development practices.

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 …

The purpose of this study is to propose a top-down policy engineering framework for attribute-based access control (ABAC) that aims to automatically extract ACPs from requirement specifications documents, and then, using the extracted policies, build or update an ABAC model. We specify a procedure that consists of three main components: 1) ACP sentence identification, 2) policy element extraction, and 3) ABAC model creation and update. ACP sentence identification processes unrestricted natural language documents and identify the sentences that carry ACP content. We propose and compare three different methodologies from different disciplines, namely deep recurrent neural networks (RNN-based), biological immune system (BIS-based), and a combination of multiple natural language processing techniques (PMI-based) in order to identify the proper methodology for extracting ACP sentences from irrelevant text. Our evaluation results improve the state-of-the-art by a margin of 5% F1-Measure. To aid future research, we also introduce a new dataset that includes 5000 sentences from real-world policy documents. ABAC policy extraction extracts ACP elements such as subject, object, and action from the identified ACPs. We use semantic roles and correctly identify ACP elements with an average F1 score of 75%, which bests the previous work by 15%. Furthermore, as SRL tools are often …

Atmospheric theming is the use of the sensory experience in connection to a theme. The purpose of this research is to examine the effects of atmospherics with theming and their effects on customer behavior in food and beverage operations of a theme park. The official research questions developed for this study include: Does the impact of the authenticity of atmospheric theming influence an effect on revisit intention? Does the type of theme (land's theme or venue's theme) influence the effect of visitor revisit intention? These questions guided the current research in previously non-evaluated fields of study. This study used the Mehrabian–Russel (M-R) model to create a new research model. In the current study, atmospheric theming was the stimuli, emotional value was the emotional response, and visitor revisit intentions was the behavioral intention. Restaurant image was added to the model to obtain a cognitive reason.The results from the multiple regression indicated that all hypotheses were accepted. Restaurant image had a positive influence on both authenticity variables, and both authenticity variables had a positive influence on emotional value. Finally, emotional value was found to have a positive influence on revisit intention. These results indicated that atmospheric theming influenced revisit intention through emotional …

In Romanian, the word lăutari refers to highly skilled professional Romani (Gypsy) musicians. By interacting with Romanian culture and tradition, the lăutari settled down in the country and developed a unique musical tradition. Their music is characterized by intricate, elaborate, and refined ornamentation; its execution requires a highly level of technique. George Enescu, regarded as Romania's most influential musician, was affected by lăutari music. He created a unique musical language that recreates Romanian character by using lăutari elements. This dissertation examines how to approach Enescu's Violin Sonata No. 3 and perform it by understanding the characteristics of lăutari music as well as the work's use of such lăutari violin techniques as diverse expressive slides, vibrato, double stops, various ornaments, artificial harmonics, imitation of folk instruments, and a variety of bow strokes. Enescu's Violin Sonata No. 3 is regarded as a challenging work in the violin literature requiring a high level of violin technique. Although the standard violin repertoire is enormous, many violinists are looking to rediscover new and challenging repertoire, distinguish themselves from others, and promote themselves as professional performers. Therefore, this study should help violinists to approach the idiomatic violin writing of Enescu's sonata, especially its lăutari techniques and …

Mobility safety, especially fall prevention, plays a significant role in successful aging for older adults. Fall preventive programs aim to reduce risks for mortality from fall-related injuries among older adults. However, the covariation between personal perceptions of falls and factors and confidence of self-management in falls (CSMoF) is still under-studied despite its importance to fall prevention. Using the International Classification of Functioning, Disability, and Health (ICF) model, this dissertation aimed to investigate the relative contribution of CSMoF in relation to fall risk self-perceptions while controlling for demographics and self-reported health and functioning. Participants were 691 older adults recruited from Area Agency on Aging at Arlington, Texas. They completed measures of physical functioning, CSMoF, fall risk perceptions and fear of falls. Regression analyses indicated that fear of falls was the most predictive factor of CSMoF among older persons. Physical function measures of age, chronic illnesses of metabolism, sensory impairment, and health status were also significant predictors of the CSMoF. The interaction of perception of falls and fall experience attenuated CSMoF, with physical functioning limitations. Fear of falls served as a mediator through which demographic predictors influence CSMoF. The joint effects of perception of falls and fear of falls likely explain CSMoF …

A sizeable literature documents patterns of competition between local governments in metropolitan regions, while also exploring variation in such local government financial attributes as efficiency, budget size, fiscal disparity, and service equity, which are frequently bound together under the concept of fiscal health. However, the concept of fiscal health is broader and more sophisticated than any one fiscal measure, and empirical studies tend to focus only on multi-purpose governments. This study brings these concepts together to investigate how interlocal competition affects the fiscal health of different government types. This study answers three questions: What is a measure of fiscal health applicable to different government types? How does competition among cities and towns affect local fiscal health? How does the proliferation of special districts affect the fiscal health of local governments? This study measures the concept of fiscal health using factor analysis and examines the effects of competition among different government types on the fiscal health of both municipalities and special districts. Utilizing a pooled cross-sectional time-series approach and data from the U.S. Census Bureau for metropolitan statistical areas for every five years between 1972 and 2012,the study finds that competition among municipalities has adverse influences on the fiscal health of …

This thesis is a study of the structural, electrical and magnetic properties of indium antimonide (InSb) nanowires (NWs), that were synthesized by a template-assisted ordered growth technique via electrochemical deposition. InSb was chosen for this study because of its intrinsic properties that make it a material of choice for applications in high channel mobility, infrared (IR) sensing, thermoelectrics, and magnetoresistive sensing martials. This work has four main components: (i) Growth in commercially available anodic aluminum oxide (AAO) template, where hole-dominated conduction was observed, following NW growth in a low pH electrolyte. The challenge in using these AAO templates was in covering the back surface of the pores with a metal film. Uncovered pores resulted in electrolyte leakage and non-reproducible results. (ii) Growth in flexible polycarbonate membranes, where the flexibility of the membranes resulted in polycrystalline or high defect density NW growth. (iii) Fabrication of an AAO template, where the barrier layer thinning technique was found to be efficient in removal of the think aluminum oxide barrier that exists at the interface between the template and the aluminum metal. This allows for direct growth of NWs into the template pores without the need for metal evaporation. (iv) Fabrication of a heterostructure …

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.

This study examines the determinant and consequences of having a chief operating officer (COO). Specifically, we investigate chief executive officer (CEO) related factors that affect the choice to employ a COO and look into the impact of having a COO on firm operational efficiency using a data envelopment analysis (DEA)-based measure. Although prior literature has extensively investigated the role of CEOs and chief finance officers (CFOs) on firm outcomes, few studies focus on the impact of COOs. Thus, this study explores characteristics associated with the likelihood that a firm will have a COO. This research also sheds light on the effect of COOs on firm operational efficiency because the core duties of COOs include optimizing operational performance and improving cost efficiency. Our results imply that CEO busyness, CEO ability, CEO demographic characteristics, and CEO network size have a significant impact on the decision to employ a COO. We also find that firms that have a COO have a lower level of operational efficiency than firms that do not. This result implies that the cost of having a COO outweighs the benefit of having one. The effects last for three years on average. Further, we find that firms with a COO …

This dissertation is composed of a critical preface, "Reconciling Art and Account in the Creative Essay," and the essay collection Resurrection Attempts: Essays. The preface situates the following essay collection within the genre of contemporary creative nonfiction. Specifically, it argues that genre-bending or genre hybridity are inherent and unavoidable features of creative nonfiction writing and should be celebrated, rather than denied or lamented. It points to other writers who deliberately challenge the bounds of genre, and discusses some of the collection's innovations in form and other ways it offers experimentation, such as use of unusual or borrowed points of view, disruption of chronology, and adoption of elements from other genres of writing, including fiction, poetry, and academic. Ultimately, embracing the artistic side of creative nonfiction (as opposed to its "purely" journalistic side) allows for heightened intimacy with the reader, a much wider breadth of storytelling, and a more vulnerable—and therefore more truthful—interrogation of legacy and the human experience. Resurrection Attempts is a collection of essays exploring the writer's rural Texas childhood and the early and tragic losses of her parents, including the effect of those experiences on her adult life and performance of motherhood. The voices of the writer's sisters …

This dissertation is devoted to the development of novel devices for optoelectronic and photovoltaic applications using the promise of inkjet printing with two-dimensional (2D) materials. A systematic approach toward the characterization of the liquid exfoliated 2D inks comprising of graphene, molybdenum disulfide (MoS2), tungsten diselenide (WSe2), and 2D perovskites is discussed at depth. In the first study, the biocompatibility of 2D materials -- graphene and MoS2 -- that were drop cast onto flexible PET and polyimide substrates using mouse embryonic fibroblast (STO) and human esophageal fibroblast (HEF) cell lines, was explored. The polyimide samples for both STO and HEF showed high biocompatibility with a cell survival rate of up to ~ 98% and a confluence rate of 70-98%. An inkjet printed, biocompatible, heterostructure photodetector was constructed using inks of photo-active MoS2 and electrically conducting graphene, which facilitated charge collection of the photocarriers. The importance of such devices stems from their potential utility in age-related-macular degeneration (AMD), which is a condition where the photosensitive retinal tissue degrades with aging, eventually compromising vision. The biocompatible inkjet printed 2D heterojunction devices were photoresponsive to broadband incoming radiation in the visible regime, and the photocurrent scaled proportionally with the incident light intensity, exhibiting a …

An in-depth study of Al2W3O12 negative thermal expansion (NTE) ceramic was performed, focused on synthesis, phase mappings, and the underlying mechanisms shown to be responsible for NTE. Review of the literature has shown inconsistencies in reported values of the dilatometry measured coefficients of thermal expansion, and the temperature for the known monoclinic to orthorhombic phase transition. Two synthesis techniques are introduced: an ionic-liquid non-hydrolytic sol-gel synthesis route; and a low temperature solid state reaction synthesis for Al2W3O12. X-ray diffraction, Raman spectroscopy, and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) were used to verify the techniques. Two differential scanning calorimetry (DSC) experiments (high and low temperature) were performed on the material showing the transition between -5 and -20 °C and no other phase changes until a reported degradation above 1100 °C. Extensive dilatometry on the material led to the discovery of elastic transitions occurring in the polycrystalline sample capable of explaining the inconsistencies in reported dilatometry results. This is further developed into a proposed model defining the regions between these transitions. Each region has a different thermal expansion as well as a direct effect on the reaction of the material upon cooling. This proposed model may allow more consistent reporting of …

Machine learning algorithms based on neural networks have achieved remarkable results and are being extensively used in different domains. However, the machine learning algorithms requires access to raw data which is often privacy sensitive. To address this issue, we develop new techniques to provide solutions for running deep neural networks over encrypted data. In this paper, we develop new techniques to adopt deep neural networks within the practical limitation of current homomorphic encryption schemes. We focus on training and classification of the well-known neural networks and convolutional neural networks. First, we design methods for approximation of the activation functions commonly used in CNNs (i.e. ReLU, Sigmoid, and Tanh) with low degree polynomials which is essential for efficient homomorphic encryption schemes. Then, we train neural networks with the approximation polynomials instead of original activation functions and analyze the performance of the models. Finally, we implement neural networks and convolutional neural networks over encrypted data and measure performance of the models.

This mixed-methods study identified the effective practices of the principal and leadership team in an Improvement-Required (IR) high school that significantly influenced student achievement and guided their school from IR to a rating of Met Standard in one year. IR or F schools under the new system are schools that failed to meet the state accountability target goals. The high school in this study had a large culturally and economically diverse student population with a high percentage of English learners. The leadership practices were identified through four themes revealed by the qualitative data analysis of focus group and individual in-depth interviews: (a) importance of instructional, collaborative leadership, (b) intentional planning of effective instruction for all students, (c) consistent use of data to guide instruction, and (d) ongoing, data based, targeted staff development. The study findings are significant due to strong corroboration between the qualitative data collected from the interviews and the quantitative results from the faculty survey.

This study examined student academic optimism in four diverse North Texas school districts. This study used a convergent parallel mixed methods design to analyze results of an online administration of the survey, and Latinx student responses to a focus group protocol derived from the survey. Quantitative results indicate the individual scales making up the construct align with previous research results. The three scales were found to be strongly and significantly correlated, indicating the potential for validation. Qualitative results indicate Latinx students' perceptions of their academic careers align with four themes. Latinx students are keenly aware of their teachers as a person, their school as a community, the intrusion of the outside world, and students as agents. Qualitative results support the importance of the three components of the construct, student trust in teachers, student academic press, and student identification with school. As a new source of data, combined with existing metrics of instructional effectiveness, student academic optimism could increase the ability of decision makers to improve the overall efficacy of school systems especially when addressing the persistent opportunity gaps for Latinx and other students of color.

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 majority of repertoire catalogs for singers, printed and digital, often list works by voice type, language, and/or genre. The 21st century has seen an emergence of online classical music catalogs where the user can seek repertoire by searching composers from underrepresented communities (i.e., women, Black, LGBTQ, Latinx). What does not currently exist is a resource that catalogs songs for solo voice dealing specifically with gay subject matter. This dissertation surveys seventeen 21st century gay-themed art songs by four living American composers: David Del Tredici, Ben Moore, Clint Borzoni, and Gary Schocker. Each chapter introduces a different composer and a select representation of their gay-themed art songs. Each entry includes text analysis based on the composer's and author's intentions and a brief analysis to determine pedagogical and musical difficulty. It is my intent that this document will facilitate a much-needed resource and encourage further study, promotion, and performance of voice works with gay themes. Moreover, I hope that it will serve as a tool for the applied voice teacher to assist in the vocal and artistic development of their students through broader repertoire choices.

Research continues to support the positive link between teacher collective efficacy and student achievement. The purpose of this study was to better understand how principal leadership behaviors affect teacher collective efficacy beliefs. The study was designed around Goddard, Hoy, and Hoy's construct of teacher collective efficacy, which is grounded on Bandura's efficacy constructs. The sequential mixed-methods study was designed to examine the perceptions of teacher participants from one Texas Title I middle school regarding principal leadership behaviors. A case study approach was used to construct meaning from teachers' perceptions about the effects of principal behaviors on teachers' beliefs regarding the components of collective efficacy. The quantitative portion of the study (a survey) examined teacher perceptions of their collective efficacy beliefs regarding various facets of the school organization. The qualitative portion (focus group and individual interviews) centered on what teachers perceive to be the impact of principal leadership behaviors on their teacher collective efficacy. Findings from the quantitative portion of the study suggest that teachers perceive their levels of collective efficacy to be higher when reflecting on factors that are primarily connected to school, like learning, motivating students, and handling student discipline issues. Findings from the qualitative portion of the study …

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 …