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Advancements in Micromachining Techniques for RF and Biomedical Applications: From Diffraction UV Lithography to Smart Stent Development and Beyond

Description: This dissertation advances micromachining techniques by introducing the novel fabrication method for biomedical application. Diffraction UV lithography is a rapid microneedle fabrication method that requires only one or two UV exposure steps, followed by resin development and rinsing to form microneedle array within 30-minute process. This technique demonstrates remarkable versatility by allowing the fabrication of diverse microneedle structures by modifying the photopattern shape. Solid micron… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Tan, Jun Ying
Partner: UNT Libraries

The Analysis of Synthetic Opioids Belonging to the Fentanyl Class

Description: Here three analytical methods developed for the analysis of fentanyl and 210 fentanyl analogs, 7 fentanyl precursors, and 32 non-synthetic opioids are presented. Atmospheric pressure solids analysis probe- mass spectrometry (ASAP-MS), electrospray ionization- traveling wave ion mobility- mass spectrometry (ESI-TWIM-MS) and atmospheric pressure chemical ionization-gas chromatography-mass spectrometry (APCI-GC-MS) was utilized to generate GC retention times, collision-cross sections, and collisio… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Reyes Monroy, Karen Abigail
Partner: UNT Libraries

The Application of Voice Building Techniques from the Bel Canto Singing Style to the Interpretation of Chinese Classical Songs

Description: This dissertation explores the integration of bel canto into Chinese vocal music, tracing its introduction in the early 20th century during the May Fourth Movement and its influence on modern Chinese vocal pedagogy. Traditional Chinese singing styles, rooted in folk traditions and regional theatrical forms, present unique tonal and technical challenges when combined with Western bel canto methods. This study examines the historical and technical intersections of these styles, focusing on how be… more
This item is restricted from view until December 1, 2025.
Date: May 2025
Creator: Yuan, Yichen
Partner: UNT Libraries
open access

Assessing the Role of Small Food Retail in Alleviating Food Desert in DFW Metroplex, Texas

Description: Food deserts continue to be a significant challenge in the Dallas-Fort Worth Metroplex, disproportionately impacting low-income communities by restricting access to affordable and nutritious food. This study investigates how small grocery stores, ethnic markets, and farmers' markets contribute to redefining food deserts beyond the conventional supermarket-focused approach. Using Geographic Information Systems and spatial analysis, the research maps food deserts under both traditional and expand… more
Date: May 2025
Creator: Lawson, Nicholas
Partner: UNT Libraries

The Assessment and Treatment of Inappropriate Sexual Behavior in Adolescents with Autism and Intellectual Disability

Description: Inappropriate Sexual Behavior (ISB) is a behavioral problem that can have significant negative impacts for individuals who engage in this form of challenging behavior (Davis et al., 2016). Functional analysis (FA) is the gold standard for the assessment of challenging behavior because function-based treatments produce the best clinical outcomes for challenging behavior (Iwata et al., 1994; Dozier et al., 2012). There is limited research on the assessment and treatment of ISB in people with inte… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Plewes, Lauren
Partner: UNT Libraries

Audo-Sight: Enabling Ambient Interaction for Blind and Visually Impaired Individuals

Description: Visually impaired people face significant challenges when attempting to interact with and understand complex environments, and traditional assistive technologies often struggle to quickly provide necessary contextual understanding and interactive intelligence. This paper presents Audo-Sight, a state-of-the-art assistive system that seamlessly integrates Multimodal Large Language Models (MLLMs) to provide expedient, context-aware interactions for Blind and Visually Impaired (BVI) individuals. Un… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Ainary, Bhanuja
Partner: UNT Libraries
open access

Becoming Dallas: Tracing Local Queer Memory at the Intersections of Time, Place, and Publics

Description: Engaging with place and space, public memory, and the politics of commemoration, this rhetorical analysis explores the formation and function of local queer remembrance in Dallas, Texas. Guided by my own embodied experiences of a queer Dallas as a gay Midwesterner, critically examining these three memory sites is guided by theoretical commitments to expanding understandings of public memory, queer theory, and embodied knowledge. This thesis traces the overarching question, “What does it mean to… more
Date: May 2025
Creator: Burnap, Cameron Avery
Partner: UNT Libraries
open access

Behind the Apron: Employee Food Waste Behavior and Food Safety Concerns in Dining Halls

Description: Food waste at university dining halls is a significant issue that contributes to environmental, economic, and social problems. Employees play a crucial role in waste management and their overly strict food safety concerns often lead to unnecessary food waste. The purpose of the study was to investigate how dining hall employees' attitudes, subjective norms, and perceived behavioral control influence their food waste reduction behaviors with a focus on their food safety concerns as a moderating … more
Date: May 2025
Creator: Appiah, Monica Odey
Partner: UNT Libraries

Beyond the Closet: Examining LGBTQ+ Outness, Social Vigilance, and the Roles of Discrimination and Belonging

Description: More people are identifying with at least one LGBTQ+ identity than what was observed with previous generations. However, even with increased societal acceptance of LGBTQ+ identities, LGBTQ+ individuals continue to experience discrimination. While LGBTQ+ identity disclosure may alleviate the burden of concealment, it may also expose individuals to discrimination. Social vigilance is linked to experiences of discrimination and elevated psychological distress. A sense of belonging and community ma… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Straughan, Anna Marie
Partner: UNT Libraries

Bias Mitigation Strategies for Facial Attribute Classification Leveraging Fine-grained Features and ChatGPT

Description: Published research highlights the presence of demographic bias in automated facial attribute classification algorithms, particularly impacting women and individuals with darker skin tones. Existing bias mitigation techniques typically require demographic annotations and often obtain a trade-off between fairness and accuracy, i.e., Pareto inefficiency. As a part of this thesis, we proposed novel approaches to fair facial attribute classification by (a) framing it as a fine-grained classificatio… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Manzoor, Ayesha
Partner: UNT Libraries
open access

Big Men and Post-Conflict Electoral Violence

Description: Elections during peace processes are generally considered high-risk for electoral violence, but which post-conflict elections are violent and why? Past studies have examined institutions, reforms, and processes relating to rebel-to-party transformation as primary factors shaping violence in post-conflict elections. In this study I propose a new approach of “big man” networks, which focuses on social relationships between leaders and followers. Where existing electoral violence and rebel-to-part… more
Date: May 2025
Creator: Pippen, John Louis
Partner: UNT Libraries

"Brazilian Concertino for Trumpet and Wind Ensemble" by Gilson Santos: A Pedagogical Performance Guide to Modern Brazilian Repertoire for the Trumpet

Description: This dissertation provides a functional and purposeful way of approaching a piece of afro-Brazilian music, Concertino Brasileiro No. 1 for trumpet and wind ensemble, by Gilson Santos. In this paper, contextual listening to specific excerpts from both Brazilian folk and classical repertoire serves as a methodological tool through which performers can develop a deeper and more sensitive understanding of style. Informed and nuanced listening to pieces that grow out of a strong historical tradition… more
This item is restricted from view until December 1, 2025.
Date: May 2025
Creator: Nunes Costa, Dayvison
Partner: UNT Libraries
open access

Bridging the Gaps in Workplace Compliance Training

Description: Compliance training is essential as businesses and institutions navigate evolving regulatory demands and operational challenges. While these programs play a critical role in risk management and corporate governance, existing literature highlights substantial gaps in their implementation, potentially undermining their effectiveness. This study examines the impact of workplace compliance training on corporate governance, organizational culture, and performance improvements. Effective training fos… more
Date: May 2025
Creator: Grant, Jerri
Partner: UNT Libraries

Broadband, Reconfigurable Transmit-Reflect-Array (TRA) Antennas with 1-Bit Phase Shift and Bidirectional Beam Steering

Description: Passively steered phased-array antennas, including reconfigurable reflectarrays and transmitarrays, have demonstrated their effectiveness in generating high-gain, steerable radiation patterns, catering to the growing demands of modern wireless systems. A transmit-reflect-array (TRA) antenna combines both reflectarray and transmitarray operation in a single aperture, doubling the beam scanning range compared to either individual approach by enabling beam steering in both transmission and reflect… more
This item is restricted from view until June 1, 2030.
Date: May 2025
Creator: Le, Thinh Hoang
Partner: UNT Libraries

Cardiovascular Responses to Crude Oil and Hypoxia in Pelagic and Coastal Teleosts: A Study of Hemodynamic Mechanisms

Description: This dissertation investigates the effects of crude oil exposure and hypoxia on the cardiovascular physiology of three marine teleost species: mahi-mahi (Coryphaena hippurus), cobia (Rachycentron canadum), and red drum (Sciaenops ocellatus), which inhabit the Gulf of Mexico—a region significantly impacted by natural and anthropogenic environmental stressors. Through comprehensive in-situ and in-vivo assessments across multiple chapters, this research explores how these stressors influence cruci… more
This item is restricted from view until June 1, 2027.
Date: May 2025
Creator: Nelson, Derek
Partner: UNT Libraries

Case Study of How Well Students of a Graduate Program Were Prepared to Navigate Difficult Conversations

Description: Educational leaders need explicit preparation to become better communicators. So far, research indicates that this preparation is not common in university programs, and educational leaders often feel under-prepared to deal with conflict. The purpose of this case study is to share how one educational program is incorporating explicit preparation for conflict resolution so that its graduates feel more ready for difficult conversations. The findings suggest that explicit preparation in that progra… more
This item is restricted from view until June 1, 2026.
Date: May 2025
Creator: Kurochkina, Tatiana Leonidovna
Partner: UNT Libraries

Characterization of Fatty Acid Elongation1 (FAE1) in Thlaspi arvense

Description: FAE1 encodes the condensing enzyme 3-ketoacyl-CoA synthase 18 (KCS18), which catalyzes the first and rate-limiting step in the four-reaction cycle of very long chain fatty acid (VLCFA) biosynthesis in plant embryos. In Thlaspi arvense, colloquially known as pennycress, VLCFAs make up a substantial proportion of the total fatty acid (FA) content and play essential roles as components in cellular membranes, storage lipids, and sphingolipids, contributing to both structural integrity and metabolic… more
This item is restricted from view until June 1, 2027.
Date: May 2025
Creator: Rasoul, Amira
Partner: UNT Libraries
open access

Child-Centered Play Therapy with Children Who Have Experienced Disruptions in Care

Description: The current study is the first ever exploring the impact of child-centered play therapy (CCPT), an evidence-based children counseling intervention, on the trauma symptoms and social-emotional competencies of children who have experienced disruptions in care. The study utilized a within-subjects single cohort design and repeated measures over four times during intervention based on parent report. Participants consisted of 16 children recruited from three Title-1 elementary schools and two commun… more
Date: May 2025
Creator: Martinez, Amber-Lea Michelle Fiedler
Partner: UNT Libraries
open access

Choice is Not Enough: Analyzing Conditions for Obtaining Assent

Description: Providing choices is a popular way to ask for a participant’s assent, and choosing to participate is often taken as indicating assent. However, participation may be coerced depending on the behaviors available for accessing a critical reinforcer. In this experiment, rats completed a training task to receive pudding. After five repetitions of the task, the session terminated, and the rat was returned to the cage. When free pudding was available, rats continued to complete the training task, indi… more
Date: May 2025
Creator: McGee, Hannah Davis
Partner: UNT Libraries
open access

Coherence in Matter and Radiation \\ Matter and Field Interactions

Description: Classically, the refractive index of a medium is due to a response on said medium from an electromagnetic field. It has been shown, however, that a single two-level atom interacting with a single photon undergoes dispersion. The following extends that analysis to a three-level system interacting with two photons. Analysis of the system is completed both numerically for all photonic field modes and analytically for an adiabatic solution of a single field mode. The findings are not only interesti… more
Date: May 2025
Creator: Harborth, Trever Ray
Partner: UNT Libraries

Competing Identities? The Intersection of Racial, Gender, and Sexual Identities and Their Impact on Political Behavior

Description: This research examines the presence and effects of racial, gender, and sexual identities on political behavior. More specifically, it examines how racial identities interact and intersect with LGBTQ+ identities. Relying on the 2016 Collaborative Multiracial Post-Election Survey, I examine (1) whether a cohesive LGBTQ+ group identity exists across racial groups, (2) how LGBTQ+ identity and experienced discrimination affects levels of political participation across different racial-ethnic groups,… more
This item is restricted from view until June 1, 2026.
Date: May 2025
Creator: Guerrero, Jose Raul
Partner: UNT Libraries

Computational and Experimental Studies on the Reactivity of Acyclic Diamino Carbenes and Investigations of Novel Acyclic Carbene Ligands

Description: Acyclic diaminocarbenes (ADCs) are a class of ligands with the ability to catalyze a variety of reactions. Unlike their cyclized counterparts, there has not been as concerted an effort to expand upon their form to potentially broaden their function. This research seeks to computationally explore ADCs in an attempt to better understand how they work and propose new variations on the ligand that can be the first steps into expanding the applications for ADCs.
This item is restricted from view until June 1, 2027.
Date: May 2025
Creator: Nabona, Barret Z.
Partner: UNT Libraries
open access

Computational Investigation of Transition Metal Porphyrins as Electrocatalysts for Nitrogen and Nitrate Reduction Reaction

Description: This dissertation explores advanced catalysts for nitrogen fixation and nitrate reduction, which are of interest to address environmental challenges associated with ammonia synthesis and nitrate pollution. Density functional theory (DFT) simulations evaluate the electrocatalytic potential of N-fused transition metal (TM) porphyrins for the nitrogen reduction reaction (NRR) and nitrate reduction reaction (NO3RR). The reducible N-fused cobalt porphyrin, CoNHF is identified as the most effective c… more
Date: May 2025
Creator: Hajiseyedjavadi, Seyedalireza
Partner: UNT Libraries
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