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open access

Discriminative Control of Behavioral Variability in Video Game Play

Description: Creativity can be a useful skill in today's classrooms and workplaces. When individuals talk about creativity, it's unclear what the controlling variables are when we tact behavior as "creative." Research in understanding the processes behind behaviors that are considered "creative" would assist in identifying functional relations and provide insight on how to teach creativity. Since creativity is often described as doing something different from the norm, behavioral variability may be a potent… more
Date: May 2023
Creator: Arias, Gabriela Isabel
Partner: UNT Libraries
open access

Analysis of "The Seven Songs" From The Pilgrim's Progress By Ralph Vaughan Williams

Description: The opera, The Pilgrim's Progress, was written by Ralph Vaughan Williams in 1949. "The Seven Songs" are analyzed for performance, examining the elements of music and text of the songs, including melody, harmony, form, vocal line and accompaniment, with the intent of forming conclusions in regard to their usefulness as singular selections, or as a group, for performance.
Date: May 1968
Creator: Hindman, Jannette
Partner: UNT Libraries

Additive Friction Stir Deposition of Al-Ce Alloys for Improved Strength and Ductility

Description: Additive friction stir deposition (AFSD) is a solid-state additive manufacturing (AM) technique that breaks down large constituent particles into more refined and uniformly disturbed microstructure. AFSD was used to print Al-Ce alloys. Current commercial Al-alloys upon elevated temperatures go through dissolution and coarsening of strengthening precipitates causing mechanical degradation of these alloys. Al-Ce alloys do not have this issue as cerium's low solubility restricts dissolution into t… more
This item is restricted from view until January 1, 2029.
Date: December 2023
Creator: Davis, Devin Fredric
Partner: UNT Libraries
open access

Utility Trombone Playing: A Practical Method for Students to Achieve Mastery of Alto, Tenor and Bass Trombone

Description: With the importance of versatility in freelance work in the world of trombone performance, along with increased competition for that work, the need for players to play alto, tenor, and bass trombones to a high level of proficiency has become more and more crucial. This, coupled with the growing number of orchestras looking to hire musicians who are highly competent on all three instruments means that university professors need to be able to teach all three instruments. This evolution of the job… more
Date: December 2023
Creator: Owner, Timothy Michael
Partner: UNT Libraries
open access

Experimental and Numerical Investigation of a Novel Cold-Formed Steel Long Span Truss

Description: This thesis describes the experimental and numerical investigation of a novel cold-formed steel 48ft and 54ft long span truss. The truss we designed was to be used as the roofs of large buildings, such as warehouses, hangars, sports arenas. The investigation includes both experimental and numerical testing, the experimental testing of the truss under uniform loads (increasing loads) to determine its deflection and load carrying capacity. The numerical test included developing a finite element m… more
Date: December 2023
Creator: Nalla, Sai Kumar
Partner: UNT Libraries
open access

Exploring the ROI of 1:1 Computing Programs at the High School Level

Description: This dissertation explored the cost and value of 1:1 computing programs in high schools in Texas. The study examines whether the total cost of ownership of these programs can be justified by the student testing gains and graduation rates. It investigates whether student learning outcomes show a definable correlation between positive gains and the implementation of 1:1 computing programs. The study also explores whether there is a measurable return on investment of 1:1 programs based on testing … more
Date: December 2023
Creator: Kissel, Tara Michelle
Partner: UNT Libraries

Magnetoresponsive Layer-by-Layer (LBL) Polyelectrolyte Microcapsules Exposed to Low Frequency Alternating Magnetic Field for Drug Delivery to Breast Cancer Cells

Description: Layer-by-layer (LBL) polyelectrolyte capsules can be modified to incorporate stimuli such as superparamagnetic nanoparticles which respond to a magnetic field only when it is turned on. Thus, they can act as a switch to load or unload their drug cargo on demand. Specifically, magnetite is incorporated into bilayer capsules made of alternating poly(allylamine hydrochloride) (PAH) and poly(sodium-p-styrenesulfonate) (PSS) which surrounds calcium carbonate core. The core is then dissolved using… more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Powell, Robert Darrel
Partner: UNT Libraries

The Idiomatic Techniques and Procedures of Composer Kevin Walczyk (b. 1964) that Define a Unique Musical Language

Description: Award winning composer Kevin Walczyk's describes himself as a "musical storyteller," using all musical elements of structure, melody, harmony, and counterpoint to convey programmatic content. A variety of subjects are conveyed that include historical events, people, physical objects or locations, and literary texts. Deeper matters, such as spiritual themes, are also often incorporated in his music that enhance the musical program. The technical procedures employed—pertaining particularly to t… more
This item is restricted from view until July 1, 2024.
Date: December 2023
Creator: Wollam, Seth Frederick
Partner: UNT Libraries
open access

"To Swim In Air Forever Tooloud Laughcrying"

Description: This thesis' focal presentable object – to swim in air – is a mythosystem comprising six iteratively malleable experiential systems of intermedial musical and visual performance works composed by myself between the years 2018 and 2023. Conceived through the lens of Jennifer Walshe's New Discipline, created within my practice cycle's nodal context, and connected by a sub/conscious structure of perceptual timbre, the mythosystem and its parts form the centerpiece of this discussion of context, pr… more
Date: December 2023
Creator: Fristensky, Louise Anne
Partner: UNT Libraries

Thermodynamics, Kinetics and Mechanical Behavior of Model Metallic Glasses

Description: The thermophysical properties and deformation behavior of a systematic series of model metallic glasses was investigated. For Zr-based metallic glasses with all metallic constituents, the activation energy of glass transition was determined to be in the range of 74-173 kJ/mol while the activation energy of crystallization was in the range of 155-170 kJ/mol. The reduced glass transition temperature was roughly the same for all the alloys (~ 0.6) while the supercooled liquid region was in the ran… more
This item is restricted from view until January 1, 2026.
Date: December 2023
Creator: Akhtar, Mst Alpona
Partner: UNT Libraries

Building a Digital Twin of the University of North Texas Using LiDAR and GIS Data

Description: Digital twins are virtual renditions of the actual world that include real-world assets, connections, activities, and processes. Recent developments in technologies play a key role in advancing the digital twin concept in urban planning, designing, and monitoring. Moreover, the latest developments in remote sensing technology have resulted in accurate city-scale light detection and ranging (LiDAR) data, which can be used to represent urban objects (buildings, vegetation, roads, and utilities), … more
This item is restricted from view until July 1, 2024.
Date: December 2023
Creator: Bhattacharjee, Shwarnali
Partner: UNT Libraries
open access

"The Gordita's Guide to Body Positivity"

Description: "The Gordita's Guide to Body Positivity" is an autobiographical documentary reflecting on society's expectations of the female body image and how it affects Latinx women. Through personal recollections, media content, and archival material, the film explores beauty expectations, body discrimination, and body positivity. The document analyzes the documentary styles such as autoethnography and narration incorporated into the film and provides historical and theoretical context to body image in th… more
Date: December 2023
Creator: Calderon, Jessica Andrea
Partner: UNT Libraries

Option Pricing Under New Classes of Jump-Diffusion Processes

Description: In this dissertation, we introduce novel exponential jump-diffusion models for pricing options. Firstly, the normal convolution gamma mixture jump-diffusion model is presented. This model generalizes Merton's jump-diffusion and Kou's double exponential jump-diffusion. We show that the normal convolution gamma mixture jump-diffusion model captures some economically important features of the asset price, and that it exhibits heavier tails than both Merton jump-diffusion and double exponential jum… more
This item is restricted from view until January 1, 2026.
Date: December 2023
Creator: Adiele, Ugochukwu Oliver
Partner: UNT Libraries
open access

Exploring the Association of Language Brokering and Parent-Child Relationship in Korean Immigrant Families

Description: This study focuses on investigating the dynamics of language brokering as Korean immigrant families experience environmental challenges associated with immigration. This study was conducted with qualitative research design with purposive sampling of Korean immigrant families. Six parent-child dyads were recruited and participating children were between 12 to 16 years old. Semi-structured interviews were conducted separately with parents and children in either English or Korean. Thematic analysi… more
Date: December 2023
Creator: Lee, Eunkyung
Partner: UNT Libraries
open access

Rethinking the Study of Conflict and Peace: Making Causal Inferences in Quantitative Conflict and Peace Research

Description: Most research questions and theory in quantitative peace and conflict research are fundamentally causal. However, a large gap exists in the extant literature between research question and research methodology. Not only does most existing methodology fail to achieve what most quantitative peace scholars attempt, but many researchers do not appear to be aware of these limitations. In this dissertation, I outline five key shortcomings within this literature that, left unaddressed, create results t… more
Date: December 2023
Creator: Lookabaugh Jr., Brian Scott
Partner: UNT Libraries
open access

Investigating Novel Streptomyces Bacteriophage Endolysins as Potential Antimicrobial Agents

Description: As antibiotic resistance has become a major global threat, the World Health Organization has urgently called scientists for alternative strategies for control of bacterial infections. Endolysin, a protein encoded by a phage gene, can degrade bacterial peptidoglycan (PG). Currently, there are three endolysin products in the clinical phase. We, thus, are interested in exploring novel endolysins from Streptomyces phages as only a few of them have been experimentally characterized. Using bioinforma… more
Date: December 2023
Creator: Maneekul, Jindanuch
Partner: UNT Libraries
open access

The Effects of Implementing a Reward-Based Version of Ostrom's Eight Design Principles as an Intervention Package on Responses in a Common Pool Resource (CPR) Game

Description: The aim of behavior analysis has always been to apply technologies rooted in basic behavioral principles to problems of societal importance (e.g., Skinner, 1948; 1953; 1987). One such problem is the Tragedy of the Commons - a phenomenon arising from systemic failures among a community, leading to the total collapse of a critical resource (Hardin, 1968). Elinor Ostrom's Eight Design Principles were developed to provide a framework for the self-management of common pool resources (CPRs; Ostrom, 1… more
Date: December 2023
Creator: Paterson, Ian Scott
Partner: UNT Libraries
open access

The Effect of Restructuring of Peer Firms on Investment

Description: Firms' operational restructuring involves information relevant to strategic choices as well as future demand and cost conditions. This study examines the relationship between peer firms' restructuring and a company's responsiveness to its growth opportunities. Peer firm restructuring can increase uncertainty with respect to a company's payoffs regarding its investment projects, leading to decreased responsiveness to growth opportunities. Using a large sample of public companies during 2006–2020… more
Date: December 2023
Creator: Kim, Hojoong
Partner: UNT Libraries
open access

"Google is my friend": An Exploration of Older Adult Media Literacy

Description: The advancement and incorporation of media in daily life continue to grow exponentially as the median age of humanity continues to rise. While there are media literacy education programs targeted toward children and adolescents, older adults are often left out of these initiatives. Based on ethnographic research conducted at two senior centers in Denton, TX, this thesis explores the way older adults analyze and interact with media. Data collection methods include participant observation and sem… more
Date: December 2023
Creator: Williams, Mikaela Anne
Partner: UNT Libraries

Green Manufacturing of Lignocellulosic Fiber through Bacterial Degradation Process

Description: Lignocellulose is the most abundant biopolymer on earth and offers excellent potential for sustainable manufacturing. Because lignocellulose is structurally complex and resistant to decomposition, innovative degradation strategies are necessary to unlock its value. In this dissertation, a green manufacturing process through enzyme-triggered self-cultured bacteria retting for lignocellulosic fiber was developed and investigated. The mechanism of the lignocellulosic fiber retting at a controlled … more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Fu, Yu
Partner: UNT Libraries
open access

Saxophone Instruction by Women: Experiences of Achieving the Rank of Full Professor at Post-Secondary Institutions in the United States

Description: Since the first saxophone professor at the Paris Conservatory in 1858, saxophone instruction has primarily been a male-dominated field. Numerous sources detail the experiences, lives, and influence of male post-secondary saxophone instructors. Women have made great strides in the performance and instruction of the saxophone at the post-secondary level, but sources discussing their lives and experiences are limited. Saxophone instruction at the post-secondary level in the United States began in … more
Date: December 2023
Creator: Heimann, Christa Marie
Partner: UNT Libraries

Mesenchymal Stem Cells Encapsulated and Aligned in Self-Assembling Peptide Hydrogels

Description: This study presents a viable strategy using fmoc-protected peptides hydrogels, to encapsulate and stretch mesenchymal stem cells (MSC). To explore the peptide hydrogel potential, a custom mechanical stretching device with polydimethylsiloxane (PDMS) chambers were used to stretch MSCs encapsulated in Fmoc hydrogels. We investigated the impact of fmoc- FF prepared in dimethyl sulfoxide (DMSO), 1,1,1,3,3,3-hexafluoro-2-propanol (HFP) and deionizied water in the self-assembly, and mechanical proper… more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Kasani, Yashesh Varun
Partner: UNT Libraries

Factors Affecting MeHg Contamination of Spiders and Insect-Mediated MeHg Flux from Human-Made Ponds

Description: The present study focused on methylmercury (MeHg) in emergent aquatic insects and spiders from human-made ponds. This dissertation addresses two main topics: (1) factors affecting variation in spider MeHg concentrations around human-made ponds and (2) the magnitude of MeHg transported out of human-made ponds by emergent aquatic insects (insect-mediated MeHg flux). Spiders were specifically targeted in this study because they have been proposed as sentinels of MeHg contamination (organism whose … more
This item is restricted from view until January 1, 2029.
Date: December 2023
Creator: Hannappel, Madeline Pratt
Partner: UNT Libraries
open access

Cross-Pollinating Culturally Sustaining Pedagogies and Systemic Functional Linguistics in English as a Second Language (ESL) Classrooms

Description: This exploratory case study research was conducted with a view to exploring how teachers teaching emergent bilingual students in ESL programs can enact the principles of culturally sustaining systematic functional linguistics (CS SFL), such as critical centering, historicizing, curricularizing, teaching and learning cycle (TLC), and semantic waving in their classrooms. Two middle school teachers participated in the study and used CS SFL principles to teach their emergent bilingual students. I g… more
Date: December 2023
Creator: Rana, Lal Bahadur
Partner: UNT Libraries
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