Search Results

Adult Attachment, Perceived Social Support, and Problematic Video Gaming Behavior

Description: With the growing popularity in video games, there has been increased concerns over the prolonged exposure to the entertainment medium. Problematic gaming is defined as a pattern of gaming behavior that causes significant impairment in personal, social, other important areas of functioning, often characterized by preoccupation and loss of interest in other areas. This study examined how problematic gaming behaviors may be influenced by insecure adult attachment and perceived social support from differing sources. It was hypothesized that avoidant attachment would have a significant direct and indirect effect (via perceived social support) on problematic gaming. In addition, perceived social support from online friends and from offline friends were hypothesized to moderate the relationship between attachment and problematic gaming, Participants were recruited from both SONA (n = 151) and Amazon's Mturk (n = 264) to complete an online research questionnaire that measured variables of interest. Results indicated that the direct and indirect effects of attachment avoidance on problematic gaming were supported in both subsamples but the moderator effects were not. Further exploratory analysis found that anxious attachment demonstrated a similar pattern as avoidant attachment, but with a significant moderator effect of perceived social support from online friends (enhance) on the attachment anxiety and problematic gaming relation. Additionally, anhedonia and depressive symptoms were found to be significantly correlated with problematic gaming. Limitations, future research directions, and clinical implications are discussed.
Date: December 2020
Creator: Gu, Peter
Partner: UNT Libraries

Alexandria Ocasio-Cortez: Media Coverage of Age, Gender, and Ethnicity in the 116th Congress

Description: This study focuses on Alexandria Ocasio-Cortez, the U.S. Representative for New York's 14th Congressional District, and how news media portray her based on her gender, age, and ethnicity, which still play essential roles in the political system in the United States. The analysis of previous academic research, newspaper articles from the New York Times and the Washington Post (June 1, 2018 to June 30, 2019) and framing and feminist theories are used to evaluate coverage of Alexandria Ocasio-Cortez. The newspaper stories are examined based on the framing of traits including being the youngest woman ever elected to Congress, being Latina, and being one the most progressive politicians in the Congress. The main objective of this study is to shed light on a topic that at this moment in time is more relevant than ever because the 116th Congress has the highest number of women and women of color in U.S. history. I examine media coverage that Rep. Alexandria Ocasio-Cortez receives for stereotypical frames, so that, overall, all women running or holding public office may receive unbiased and more balanced media coverage. This study also intends to hold media outlets accountable for the way they portray different candidates because it has a significant influence on the voting population.
Date: December 2020
Creator: Reyes, Blanca Elena
Partner: UNT Libraries

Analysis of the Cytochrome P450 and the UDP-Glucuronosyltransferases Families and Vitamin D3 Supplementation in Anoxia Survival in Caenorhabditis elegans

Description: Alteration in diet and knockdown of detoxification genes impacts the response of C. elegans to oxygen deprivation stress. I hypothesized that feeding worms a vitamin D3-supplementation diet would result in differential oxygen deprivation stress response. We used a combination of wet lab and transcriptomics approach to investigate the effect of a vitamin-D3 supplemented diet on the global gene expression changes and the anoxia response phenotype of C. elegans (Chapter 2). C. elegans genome consists of 143 detoxification genes (cyp and ugt). The presence of a significant number of genes in these detoxification families was a challenge with identifying and selecting specific cyp and ugt genes for detailed analysis. Our goal was to understand the evolution, phylogenetic, and expression of the detoxification enzymes CYPs and UGTs in C. elegans (Chapter 3). We undertook a phylogenetic and bioinformatics approach to analyze the C. elegans, detoxification family. Phylogenetic analysis provided insight into the association of the human and C. elegans xenobiotic/endobiotic detoxification system. Protein coding genes in C. elegans have been predicted to be human orthologs. The results of this work demonstrate the role of C. elegans in the identification and characterization of vitamin D3 induced alterations in gene expression profile and anoxia response phenotypes and the identification of human orthologs for the detoxification enzymes and provides insight into the gene expression pattern.
Date: December 2020
Creator: Agarwal, Sujata
Partner: UNT Libraries

An Anthology of Tenor Arias from Korean Operas

Description: The first Western opera to be performed in Korea was Verdi's La Traviata on January 16, 1948, by the Joseon Opera Company. The first Korean opera, Chunhyangjeon by Jae Myung Hyun, premiered at the Korean National Theater in May 1950, just before the outbreak of the Korean War. Daejeon.go.kr reports that since that year approximately 200 Korean operas have been produced in Korea. Nevertheless, there have been consistent efforts to create and introduce Korean operas to the public. Most of them ended up being "one-off" performances with a single production. Most research on Korean opera has focused on its history, the challenges of producing new operas, or an analysis of selected Korean operas. This study equips singers with the following: pertinent historical background with the libretto, a synopsis, research regarding the composer and librettist, a character analysis, vocal and textual analysis of the selected opera arias, instruction regarding the Korean language, IPA, and a word-by-word translation of the text. I also make recommendations for tenor arias from Korean operas for singers with specific voice types.
Date: December 2020
Creator: Joo, Kwan Kyun
Partner: UNT Libraries

Application of Novel Microporous Polyolefin Silica-Based Substrate in Paper Spray Mass Spectrometry (PS-MS)

Description: This study addressed five key applications of paper spray mass spectrometry (PS-MS): (i) comparative analysis of the microporous substrate with the cellulose-based substrate in drug detection; (ii) detection of more than 190 fentanyl analogs with their fragmentation pattern can be implemented in the future reference for quicker, accurate and sensitive determination; (iii) exploring sweat in a fingerprint to be considered an alternate method to recognize non-invasive markers of metabolites, lipids, narcotics, and explosive residues that can be used in forensic testing applications; (iv) extending and improving better, cost-effective and quick real-time monitoring of the diseased stage using biofluid samples to obtain vastly different lipid information in viral infection such as COVID-19; and (v) mass spectral detection in chemical warfare agent (CWA) stimulant gas exposure with microporous structure absorbency capabilities in air quality monitoring. This novel synthetic material is known as Teslin® (PPG Industries), consisting of a microporous polyolefin single-layered silica matrix, can be used for precise, sensitive, selective, and rapid sample analysis with PS-MS. The Teslin® substrate provided longer activation time for samples and an active signal with a higher concentration of ion formation and mobility compared to cellulose-based papers. Direct analysis of multiple samples showed that, besides being more sensitive to the study and highly efficient with less sample size and spray solvent needed, Teslin® had less interaction with paper source molecules. For less than 60 seconds of processing time, PS-MS can be used as a rapid detection tool, with limited sample preparation requiring less than one microgram of the sample. Overall, the data in this analysis indicate the capacity of the PS-MS as an alternative approach for direct chemical analysis in many applications. Specifically, the waterproof and microporosity characteristics of Teslin® have proven its usefulness in detecting a variety of chemical components in liquid, solid, and gaseous phases …
Date: December 2020
Creator: Weligamage De Silva, Imesha
Partner: UNT Libraries

Atomic Layer Deposition of Boron Oxide and Boron Nitride for Ultrashallow Doping and Capping Applications

Description: The deposition of boron oxide (B₂O₃) films on silicon substrates is of significant interest in microelectronics for ultrashallow doping applications. However, thickness control and conformality of such films has been an issue in high aspect ratio 3D structures which have long replaced traditional planar transistor architectures. B₂O₃ films are also unstable in atmosphere, requiring a suitable capping barrier for passivation. The growth of continuous, stoichiometric B₂O₃ and boron nitride (BN) films has been demonstrated in this dissertation using Atomic Layer Deposition (ALD) and enhanced ALD methods for doping and capping applications. Low temperature ALD of B₂O₃ was achieved using BCl₃/H₂O precursors at 300 K. In situ x-ray photoelectron spectroscopy (XPS) was used to assess the purity and stoichiometry of deposited films with a high reported growth rate of ~2.5 Å/cycle. Free-radical assisted ALD of B₂O₃ was also demonstrated using non-corrosive trimethyl borate (TMB) precursor, in conjunction with mixed O₂/O-radical effluent, at 300 K. The influence of O₂/O flux on TMB-saturated Si surface was investigated using in situ XPS, residual gas analysis mass spectrometer (RGA-MS) and ab initio molecular dynamics simulations (AIMD). Both low and high flux regimes were studied in order to understand the trade-off between ligand removal and B₂O₃ growth rate. Optimization of precursor flux was discovered to be imperative in plasma and radical-assisted ALD processes. BN was investigated as a novel capping barrier for B₂O₃ and B-Si-oxide films. A BN capping layer, deposited using BCl₃/NH₃ ALD at 600 K, demonstrated excellent stoichiometry and consistent growth rate (1.4 Å/cycle) on both films. Approximately 13 Å of BN was sufficient to protect ~13 Å of B₂O₃ and ~5 Å of B-Si-oxide from atmospheric moisture and prevent volatile boric acid formation. BN/B₂O₃/Si heterostructures are also stable at high temperatures (>1000 K) commonly used for dopant drive-in and activation. BN shows great …
Date: December 2020
Creator: Pilli, Aparna
Partner: UNT Libraries

The Austrian Army in the War of the Sixth Coalition: A Reassessment

Description: The Austrian army played a crucial role in Napoleon's decisive defeat during the War of the Sixth Coalition. Often considered a staid, hidebound institution, the army showed considerable adaptation in a time that witnessed a revolution in the art of war. In particular, changes made after defeat in the War of the Fifth Coalition demonstrate the modernity of the army. It embraced the key features of the new revolutionary way of war, including mass mobilization, a strategy of annihilation, and tactics based on deep echelonment, mobility, and the flexible use of varied formations. While the Austrians did not achieve the compromise peace they desired in 1814, this represented a political failing rather than a military one. Nevertheless, the Austrian army was critical in securing the century of general European peace that lasted until the dawn of the Great War.
Date: December 2020
Creator: Messman, Daniel M
Partner: UNT Libraries

Between Coalition and Unilateralism: The British War Machine in the Mediterranean, 1793-1796

Description: In 1793, the British government embarked on a war against Revolutionary France that few expected would last twenty-five years and engulf all of Europe. Radical French policies provided an opportunity for William Pitt, the British prime minister, to endeavor to cobble a European alliance, including a number of Mediterranean states. These efforts never progressed beyond theory and negotiations because of conflicted policy and tension between the British diplomatic corps and Royal Navy over the strategic goals in the region. With diplomats focused on coalition building and military commanders focused on national objectives, British efforts never congealed into a unified effort to defeat Revolutionary France.
Date: December 2020
Creator: Baker, William Casey
Partner: UNT Libraries

Black and White Attitudes toward Interracial Marriage in the U.S.: The Role of Social Contact Characteristics

Description: This research advances the literature on interracial marriage by using variables that align with the social contact hypothesis. The purpose of this project is to accurately gauge the exact social predictors influencing current attitudes towards Black and White interracial marriage. Multiple regression models containing social contact predictors are analyzed using data from the 2018 General Social Survey. The conclusive review of the literature summarizes age, region, and education as essential social contact predictors of attitudes towards interracial marriage. Therefore, the formulated hypotheses and multiple regression models measure this specific relationship controlling for other predictors such as sex and income. For Whites, the two most significant factors are age and living in the south vs. the west. Interestingly, a college education is not significant. For Blacks, the key contact variable that seems to matter is age. Baby boomers are less likely to favor interracial marriage. Overall, results show areas of convergence. Therefore, one's age is significant predictor for White and Black acceptance. However, it also shows divergence-region appears to only matter for Whites. Accordingly, younger Blacks and Whites were more likely to favor close relatives marrying individuals of the opposite race. Older Blacks and Whites were less likely to support interracial marriage. This analysis displays some of the critical gaps in using the social contact hypothesis to measure beliefs in Black and White conformity. Thus, there is a need to develop more logical variables to help solidify the exact social forces effecting attitudes towards interracial relationships.
Date: December 2020
Creator: Coleman, Samuel
Partner: UNT Libraries

Bohuslav Martinů's Oboe Concerto, H. 353: A New Piano Reduction of the Orchestral Score

Description: Bohuslav Martinů's "Concerto for Oboe and Small Orchestra" is one of the most frequently played pieces in the oboe repertoire. For this reason, it is often played with the piano reduction instead of the orchestra in oboe recitals. However, the existing piano reductions include many errors and discrepancies from the orchestral score, misrepresent the orchestration, sometimes fail to make the oboe entries clear, and tend to be unplayable for pianists. Moreover, the scores were published after the composer's death without him supervising the final editing. I have prepared a new, playable piano reduction to represent the orchestration more faithfully and help pianists work with their soloists more easily. Based on the work of Martin Katz, a prominent collaborative-pianist, I establish four principles for creating a new piano reduction. After scrutiny of the deficiencies of existing piano reductions, I suggest solutions for making the passages in question practical and bringing out the leading voices clearly so that the soloist can join in as easily as playing with an orchestra. To aid in reflecting the orchestral texture that Martinů created, I include abbreviated instrument names in many passages to help pianists to understand how to create balance. I have changed some passages completely to make the sound closer to the orchestral texture. All changes and suggestions are based on the orchestral score and its layout. This simplified and practical piano reduction should help pianists have more enjoyable and more successful collaborations with their soloists.
Date: December 2020
Creator: Jeoung, Ko Eun
Partner: UNT Libraries

Caregiver Knowledge of Risk Factors Associated with Complex Congenital Heart Disease and Quality of Life Outcomes

Description: Congenital heart disease is the most common birth defect globally, affecting both children and their families. Twenty –five percent of children experiencing a CHD birth defect are diagnosed with complex CHD (cCHD), signifying critical heart dysfunction requiring one or more open-heart surgeries during the first year of life. With medical advances, cCHD survival rates have almost tripled in the last three decades. This has resulted in an increase in the number of morbidities associated with cCHD, which is drastically impacting the need to support quality of life outcomes for a child with cCHD and their family. The two most prevalent unaddressed risks for quality of life outcomes in the cCHD population are child and caregiver mental health and child's neurodevelopmental disabilities. Congenital heart disease is the most common birth defect globally, affecting both children and their families. Twenty-five percent of children experiencing a CHD birth defect are diagnosed with complex CHD (cCHD), signifying critical heart dysfunction requiring one or more open-heart surgeries during the first year of life. With medical advances, cCHD survival rates have almost tripled in the last three decades. This has resulted in an increase in the number of morbidities associated with cCHD, which is drastically impacting the need to support quality of life outcomes for a child with cCHD and their family. The two most prevalent unaddressed risks for quality of life outcomes in the cCHD population are child and caregiver mental health and child's neurodevelopmental disabilities. The present study sought to address the relationship between caregiver knowledge of cCHD developmental challenges (i.e., outcomes related to neurodevelopmental disabilities, mental health, and provider quality-care approach) and children's and caregiver's quality of life outcomes, inclusive of academic functioning ability of children with cCHD, children with cCHD and their caregivers' mental health functioning, and the overall satisfaction with the …
Date: December 2020
Creator: Hutchinson, Jessica B
Partner: UNT Libraries

Class Enumeration and Parameter Bias in Growth Mixture Models with Misspecified Time-Varying Covariates: A Monte Carlo Simulation Study

Description: Growth mixture modeling (GMM) is a useful tool for examining both between- and within-persons change over time and uncovering unobserved heterogeneity in growth trajectories. Importantly, the correct extraction of latent classes and parameter recovery can be dependent upon the type of covariates used. Time-varying covariates (TVCs) can influence class membership but are scarcely included in GMMs as predictors. Other times, TVCs are incorrectly modeled as time-invariant covariates (TICs). Additionally, problematic results can occur with the use of maximum likelihood (ML) estimation in GMMs, including convergence issues and sub-optimal maxima. In such cases, Bayesian estimation may prove to be a useful solution. The present Monte Carlo simulation study aimed to assess class enumeration accuracy and parameter recovery of GMMs with a TVC, particularly when a TVC has been incorrectly specified as a TIC. Both ML estimation and Bayesian estimation were examined. Results indicated that class enumeration indices perform less favorably in the case of TVC misspecification, particularly absolute class enumeration indices. Additionally, in the case of TVC misspecification, parameter bias was found to be greater than the generally accepted cutoff of 10%, particularly for variance estimates. It is recommended that researchers continue to use a variety of class enumeration indices during class enumeration, particularly relative indices. Additionally, researchers should take caution when interpreting variance parameter estimates when the GMM contains a misspecified TVC.
Date: December 2020
Creator: Palka, Jayme M.
Partner: UNT Libraries

Closing the Opportunity Gap: Leadership Practices that Lead to Increases in Access to AP Courses for Latinx Students

Description: Using an exploratory case study approach, this study examined the school leadership factors that contribute to building Latinx student social capital as well as the best practices for creating a more equitable AP program. Through this qualitative study, the organizational and leadership factors of the AP program at Stripes High School (pseudonym) were examined, and how these factors contributed toward closing the opportunity gap. This study used semi-structured interviews with district and campus leaders and an AP teachers focus group to determine leadership beliefs and actions that were successful in building an accessible and equitable advanced academics program for Latinx students, as well as an AP student focus group to triangulate the findings. The results of this study showed Latinx students, already lacking social capital, also face many barriers of different forms: systemic, structural and cultural in their educational opportunities for AP courses and exams. The case study campus overcame these barriers and increased equity by allowing Latinx students more access to AP courses and exams through district- and campus-level administrators working to remove barriers and hire and support the most capable and socially aware AP teachers who aim to grow and nurture the students who they serve. Based on the results from this study, there are two major recommendations for school leaders to consider in their effort to close the opportunity gap for Latinx students in AP coursework. These recommendations include offering open access to all students and hiring and training teachers who understand and value equity. While this study uncovered many factors at Stripes HS that collectively served to provide an equitable AP program for Latinx students, these recommendations were the highest leverage ones.
Date: December 2020
Creator: Martinez, Jesús F.
Partner: UNT Libraries

Combinatorial-Based Testing Strategies for Mobile Application Testing

Description: This work introduces three new coverage criteria based on combinatorial-based event and element sequences that occur in the mobile environment. The novel combinatorial-based criteria are used to reduce, prioritize, and generate test suites for mobile applications. The combinatorial-based criteria include unique coverage of events and elements with different respects to ordering. For instance, consider the coverage of a pair of events, e1 and e2. The least strict criterion, Combinatorial Coverage (CCov), counts the combination of these two events in a test case without respect to the order in which the events occur. That is, the combination (e1, e2) is the same as (e2, e1). The second criterion, Sequence-Based Combinatorial Coverage (SCov), considers the order of occurrence within a test case. Sequences (e1, ..., e2) and (e2,..., e1) are different sequences. The third and strictest criterion is Consecutive-Sequence Combinatorial Coverage (CSCov), which counts adjacent sequences of consecutive pairs. The sequence (e1, e2) is only counted if e1 immediately occurs before e2. The first contribution uses the novel combinatorial-based criteria for the purpose of test suite reduction. Empirical studies reveal that the criteria, when used with event sequences and sequences of size t=2, reduce the test suites by 22.8%-61.3% while the reduced test suites provide 98.8% to 100% fault finding effectiveness. Empirical studies in Android also reveal that the event sequence criteria of size t=2 reduce the test suites by 24.67%-66% while losing at most 0.39% code coverage. When the criteria are used with element sequences and sequences of size t=2, the test suites are reduced by 40\% to 72.67%, losing less than 0.87% code coverage. The second contribution of this work applies the combinatorial-based criteria for test suite prioritization of mobile application test suites. The results of an empirical study show that the prioritization criteria that use element and event sequences …
Date: December 2020
Creator: Michaels, Ryan P.
Partner: UNT Libraries

A Comparative Analysis of Saudi and U.S. Online Newspapers' Framing of Saudi Women's Issues: Content Analysis of Newspaper Coverage Before and After Saudi Vision 2030

Description: Previous research on framing has proved its strong effects on the social perception and political preferences of individuals. Therefore, the aim of this research is to explore how Saudi women's issues have been framed in a sample of United States and Saudi newspapers. Saudi Vision 2030 is the post-oil plan for the Kingdom of Saudi Arabia that was announced on April 25, 2016. The sample of this thesis was 300 news stories from eight newspapers. The U.S. newspapers were the New York Times, the Washington Post, the Wall Street Journal, and the Los Angeles Times. The Saudi newspapers were Al Riyadh, Okaz, Al Jazirah, and Al Watan. This thesis explores how these issues have been covered before and after Saudi Vision 2030 by answering five basic questions. Quantitative and qualitative methods were used to analyze the news stories. For the quantitative analysis, five pre-defined generic frames from Semetko and Valkenburg were adopted: conflict frame, human interest frame, morality frame, economic consequences frame, and responsibility frame. An inductive approach to find the new frames was used for the qualitative analysis. Moreover, this thesis looked at how U.S. and Saudi newspapers have visually framed Saudi women through an analysis of the types of images used in the news stories related to Saudi women's issues. The main finding suggests that within the used frames in the newspapers, the U.S. newspapers focused more on the human-interest frame, while the Saudi newspapers mostly used the economic frame. Furthermore, the types of issues covered are discussed.
Date: December 2020
Creator: Dawshi, Norah
Partner: UNT Libraries

Computational Study of C−H/C−C Activation and Functionalization with Nitrene, Carbene and Related Complexes

Description: This dissertation involves inorganic/organometallic catalysis models, in particular the functionalization of carbon-hydrogen and carbon-carbon bonds. Computational methods have been utilized to better understand the factors affecting the kinetics and thermodynamics of C−H and C−C bond activation/functionalization in this dissertation. Chapter 2 investigates methane C−H activation with a diiminopyridine nitride/nitridyl complex of 3d transition metals and main group elements via three competing pathways: 1,2-addition/[2 + 2] addition, insertion and H-atom abstraction/proton coupled electron transfer. Chapter 3 investigates a transition metal catalyzed C=C bond functionalization involving C−N bond formations to synthesize aziridines from aromatic and aliphatic alkenes. The study focuses on anionic 3d transition metal (M = Mn, Fe, Co and Ni) triphenylamide-amine complexes with nitrene active intermediates for the aziridination reactions. Chapter 4 investigates a disphenoidal Ni(II) azido complex participating in intramolecular C−H functionalization and amination via a putative Ni nitridyl intermediate and a 1,2-addition/[2 + 2] addition pathway. In Chapter 5, methane oxidative addition to the Cp*ML (Cp* = η5-C5Me5; M = Co, Rh, Ir , L = CO, PMe3) motif is compared and contrasted when the classic CO and PMe3 ligands are replaced with the cyclic alkyl(amino) carbene (CAAC) as ancillary ligands.
Date: December 2020
Creator: Sun, Zhicheng
Partner: UNT Libraries

A Consensual Qualitative Analysis of Counselor Educators' Experiences Incorporating Neuroscience

Description: Neuroscience is a relevant topic for counseling and counselor education, and it is a required area of competency for accredited counseling education programs. Despite this required competency, current counseling literature scarcely addresses neuroscience in counselor education. I have designed the present study to address this scarcity by exploring counselor educators' experiences of incorporating neuroscience into the counselor education curriculum using a consensual qualitative research (CQR) approach. The purpose of this study is to create a foundational understanding of (a) what elements of neuroscience counselor educators are currently including in their courses, and (b) the experience of counselor educators with teaching neuroscience. I interviewed eight counselor educators about their experiences learning and teaching neuroscience. Six domains emerged from the interviews: (1) participants' background and experience, (2) influence of neuroscience on participants' teaching, (3) personal, academic, and professional responses to neuroscience, (4) ethical concerns and recommendations for neuroscience, (5) areas of interest and future research in neuroscience, and (6) counseling literature and publication in neuroscience. The information shared by the participants will contribute to future research of teaching effectiveness and outcomes using neuroscience in counselor education.
Date: December 2020
Creator: Beijan, Lisa Lee
Partner: UNT Libraries

Counting Seconds

Description: Each of my oil or pastel paintings is an observation of seemingly mundane familiar places that I encounter day-to-day. I think of my art as a kind of visual journalism, where I examine common human emotions evoked by a careful consideration of the substance of light interacting with spaces or objects. The naturalistically rendered compositions are cropped and depicted in small fragments, allowing the viewer a brief glimpse into a quiet portrayal of the world. Essentially, my art allows me to share my sensibilities and to connect with others through portraits of ordinary, yet intimate, moments in time.
Date: December 2020
Creator: Shurbet, Kelsey
Partner: UNT College of Visual Arts + Design

Crafting Downtown Denton: An Exploration of Craft Beer Consumption as an Activity in Denton, Texas

Description: Craft beer as a cultural phenomenon coincided with the revitalization of downtown Denton, Texas. Much of the existing literature on craft beer and its relation to place focuses on breweries rather than bars. This exploratory study aims to explain why people consume craft beer, what factors influenced its popularity in Denton despite little beer production, and to explore considerations for the promotion of Denton as a craft beer destination and making downtown an inclusive space. Data was collected through interviews, participant observation, and a survey. Findings indicated that craft beer consumption in Denton is largely related to perceptions of community, localism, and knowledge seeking. The ethos of the craft beer industry closely aligned with participants' perceptions of Denton as a city.
Date: December 2020
Creator: Hooker, Jenny
Partner: UNT Libraries

"Despedida con Mariachi": The Musical Mediation of Grief in Mexican Immigrant Funerals

Description: Music plays an important role in Mexican funeral ceremonies, acting as a vehicle for men to acceptably express emotions of bereavement. As an important symbol of mexicanidad (Mexicanness), mariachi music is often used in traditional Catholic funerals, ritualizing grief equally as a mourning of loss and a celebration of the life of a deceased person. Although a form of popular music, mariachi's secular songs go through a process of sacralization, becoming meaningful sites for experiencing grief. As a musical expression of Mexico's idealized gender norms mariachi opens an aesthetic sphere for masculine grief to be expressed, experienced, and socialized in an acceptable form. The purpose of this thesis is to investigate the musical mediation of masculine grief, experienced and ritualized within funeral ceremonies, and observed through an ethnographic study of Mexican immigrant communities.
Date: December 2020
Creator: Domínguez, Lizeth C
Partner: UNT Libraries

Development and Disruption of Collateral Behavior and DRL Performances: A PORTL Exploration

Description: One schedule of reinforcement that is used to decrease the rate of a target behavior is differential reinforcement of low rates (DRL). During this schedule, reinforcement is delivered for a target response if it occurs after a certain amount of time has passed since the last instance of this target response. The current study used a table-top game called PORTL and college student participants to investigate how collateral patterns develop and are disrupted during DRL schedules. After the participant developed a collateral pattern of behaviors with the objects, the researcher removed one of the objects that was part of the pattern and waited for a new pattern of behaviors to develop. Once the participant developed a new collateral pattern, the researcher removed a second object. This continued until there was only one object present. Results showed that the rate of reinforcement decreased following the removal of each object, then slowly increased as a new pattern developed.
Date: December 2020
Creator: Herzog, Leah
Partner: UNT Libraries

Document and Information Experience in Virtual Zenanas: An Exploration of a Diaspora Small World

Description: The word diaspora is currently understood as the large scale voluntary movement of people, along with capital and goods due to the mechanisms of globalization. Adopting a diaspora, gender and leisure perspective, this dissertation looked at the information and document experiences of a particular fan community of women belonging to the Indian diaspora and the online spaces created and occupied by them (fan fiction blogs which can be viewed as book clubs). The study also looked at memory making and documenting of the same as a part of document experience, resulting in what can be termed as "serendipitous memory archives." The blogs hosting fan fiction and the mediated practices they support were viewed as documents for the study. The online spaces were conceptualized as small worlds and the theoretical framework used for the study consisted of a preliminary model of a small world (based on literature review and my understanding of the world under study), information experience as a concept as well as document experience models. The results show that social ties play a big role in the information and document experience, while memory making and documenting of the same are also seen to happen as part of the document experience. The results also show that adopting a document perspective enables us to see the myriad ways in which information is experienced, freeing us from considering as information only that which helps us in meeting a purpose or which fills a gap. Implications and suggestions for future research are discussed.
Date: December 2020
Creator: Kizhakkethil, Priya
Partner: UNT Libraries

Does Gender Representation Matter? Gender, Descriptive and Substantive Representation, and Women-Friendly Districts

Description: This dissertation considers how district-level demographic factors favorable to women congressional candidates facilitate substantive representation of women's interests. I contribute to the existing research by linking the literature on women candidate emergence and electoral success with that on descriptive and substantive representation. Beyond simply asking whether and how women in Congress represent women's interests, I argue that the demographic characteristics of districts in which women are more likely to run and win public office also put women representing those districts in Congress in better position to cultivate feminist homestyles and substantively represent women's interests through legislative behavior. I examine whether women representatives in women-friendly districts are more likely than men representing similar districts, or women in less women-friendly districts, to sponsor legislation in women's issue areas, sponsors women's issue earmarks, and defect from party in women's issue roll-call votes. Overall, I find general support for my theory that district-level factors contribute to observed gender differences in legislative behavior in women's issue areas.
Date: December 2020
Creator: Friesenhahn, Amy
Partner: UNT Libraries

Efficient Linear Secure Computation and Symmetric Private Information Retrieval Protocols

Description: Security and privacy are of paramount importance in the modern information age. Secure multi-party computation and private information retrieval are canonical and representative problems in cryptography that capture the key challenges in understanding the fundamentals of security and privacy. In this dissertation, we use information theoretic tools to tackle these two classical cryptographic primitives. In the first part, we consider the secure multi-party computation problem, where multiple users, each holding an independent message, wish to compute a function on the messages without revealing any additional information. We present an efficient protocol in terms of randomness cost to securely compute a vector linear function. In the second part, we discuss the symmetric private information retrieval problem, where a user wishes to retrieve one message from a number of replicated databases while keeping the desired message index a secret from each individual database. Further, the user learns nothing about the other messages. We present an optimal protocol that achieves the minimum upload cost for symmetric private information retrieval, i.e., the queries sent from the user to the databases have the minimum number of bits.
Date: December 2020
Creator: Zhou, Yanliang
Partner: UNT Libraries
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