UNT Theses and Dissertations - 21,350 Matching Results

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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
Item Type: Refine your search to only Thesis or Dissertation
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
Item Type: Refine your search to only Thesis or Dissertation
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
Item Type: Refine your search to only Thesis or Dissertation
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
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Investigating the Molecular Framesworks of Phloem-Cap Fiber Development in Cotton (Gossypium hirsutum)

Description: The current study focuses on the vascular cambium and the reiterative formation of phloem fiber bundles in cotton stems. The role of the TDIF-PXY-WOX pathway was examined in regulating cambial activity and the differentiation of phloem fibers. A study was conducted to identify and characterize the cotton WOX family genes, focusing on WOX4 and WOX14, aiming to identify and analyze their phylogenetic relationships, tissue-specific expression profiles, functional roles, and metabolic consequences… more
This item is restricted from view until January 1, 2026.
Date: December 2023
Creator: Kaur, Harmanpreet
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Exploring the Relationship between Mental Health and Substance Use, Stable Housing, and Completion of the RISE Court Program

Description: This thesis analyzes participants of the RISE Court program, a specialized court in Tarrant County, Texas, focusing on women involved in prostitution. The study investigates the intricate relationship between mental health, stable housing, substance abuse, and successful completion of the court program. Through a comprehensive analysis of participant data, the findings reveal insights into the intersection of mental health and the outcomes of participants in the RISE Court program. Contrary to … more
Date: December 2023
Creator: Smith, Paisley Elizabeth
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Analyzing the Joint Effects of Network and Community Attributes on Network Performance: Evidence from Local Continuum of Care Homeless Service Networks

Description: This dissertation examines the factors and combinations of factors that affect the performance of continuum of care homeless service networks, applying the configurational approach of contingency theory to data sets drawn from federal sources. The study accepts the two key assumptions from the theory: (1) that there are multiple paths to high performance and (2) key conditions have a joint influence on network performance. The data analysis in this study has two parts. The first employs OLS reg… more
Date: December 2023
Creator: Kim, Jintak
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

"Creature from the Unconscious"

Description: Creature from the Unconscious is a reflexive genre hybrid film that follows the process of the director's journey of navigating the process of self-acceptance and self-love in the wake of trauma.
This item is restricted from view until July 1, 2024.
Date: December 2023
Creator: Powell, Madison Keely
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Impact of Kindergarten Classroom Assignment on Classroom Teachers and Student Achievement

Description: To determine the impact of an administrator's decision on student placement in kindergarten classrooms, teachers were asked to share their perceptions on how that decision impacted their ability to deliver instruction and follow the district scope and sequence, as well as how that decision impacts student academic achievement and social and emotional development. This qualitative study was designed to gather data from kindergarten teachers using focus group interviews and individual interviews … more
Date: December 2023
Creator: Fountain, Angelica Brianna
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Acenaphthene and 1,10-Phenanthroline-Fused Βeta-Functionalized Porphyrins

Description: A series of acene-fused porphyrins and 1,10-phenanthroline-fused porphyrins were synthesized and characterized via NMR spectroscopy and mass spectrometry. The acene-fused porphyrins exhibit unique optoelectronic properties, most notably they exhibit highly red-shifted absorption bands. The 1,10-phenanthroline-fused porphyrins are of interest for their ability to bond to as variety of metals to form chelation complexes.
Date: December 2023
Creator: Arvidson, Jacob Randall
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Degradation Mechanisms and Dynamics of Silicon Telluride: A Guide to the Effective Fabrication and Characterization of Silicon Telluride-Based Devices

Description: Silicon telluride (Si2Te3) and many other tellurium containing compounds show emergent Raman peaks located at ~120 cm-1 and ~140 cm-1 as they age. The origin of these two emergent peaks is controversial in the literature and has been attributed to myriad causes such as the intrinsic Raman modes of the telluride materials, surface oxidation, defects, double resonances, and tellurium precipitates. The controversial nature of these peaks has led to the misidentification of highly degraded materia… more
Date: December 2023
Creator: Hathaway, Evan Allen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Glucose-Induced Developmental Delay is Modulated by Insulin Signaling and Exacerbated in Subsequent Glucose-Fed Generations in Caenorhabditis elegans

Description: In this study, we have used genetic, cell biological and transcriptomic methods in the nematode C. elegans as a model to examine the impact of glucose supplementation during development. We show that a glucose-supplemented diet slows the rate of developmental progression (termed "glucose-induced developmental delay" or GIDD) and induces the mitochondrial unfolded protein response (UPRmt) in wild-type animals. Mutation in the insulin receptor daf-2 confers resistance to GIDD and UPRmt in a daf-1… more
Date: December 2023
Creator: Nahar, Saifun
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Returning to Our Roots: An Anthropological Evaluation of the Farm to Keiki Program

Description: Farm to school programs are becoming a popular intervention to address childhood obesity. The hope is to prevent later chronic illnesses such as diabetes and cardiovascular disease that can result from eating high-fat/high-calorie diets that are low in consumption of fresh fruits and vegetables. This study explores the impacts of one such program, Farm to Keiki, on students, their families, and teachers at two Native Hawaiian preschools on the island of Kauaʽi, Hawaiʽi. This program combined le… more
Date: December 2023
Creator: Migdol, Steven Jeffrey
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Synthesis, Characterization, Standardization, and Validation of Luminescence Optical Chemosensors for the Detection of Carbon Dioxide, Aluminum Ions, and Silver Ions for Real-Life Applications

Description: The presented dissertation encompasses three distinct investigations into novel complexes with diverse applications. Firstly, a Europium-based complex, K[Eu(hfa)4], exhibits remarkable potential for detecting dissolved CO2 in an ethylene glycol medium, offering a low limit of detection, rapid response times, and high signal-to-noise ratios. This complex demonstrates promise for quantifying CO2 concentrations and finds utility in sugar fermentation monitoring. Secondly, an innovative ratiometric… more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Perera, Nawagamu Appuhamilage Kasun
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Saxophone Meets Chinese Culture: A Guide to Works for Saxophone by Composer Zou Xiangping

Description: Zou Xiangping is one of the most significant Chinese composers who writes music for the saxophone. These works, however, are not well-known in the classical saxophone repertoire. The purpose of this dissertation is to help international saxophonists develop an enlightened understanding and ultimately, performance of two selected pieces by Chinese composer Zou Xiangping (邹向平) (b. 1951), Images of Yalong River for Alto Saxophone and Piano (雅砻江印：为中音萨克斯管和钢琴) and Song of Chuanjiang River Boatman for… more
Date: December 2023
Creator: Zhang, Cehuai
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Using GIFs and Matrix Training to Teach Noun-Verb Tacts to Children with Autism

Description: Verbal behavior is a critical repertoire for children with autism spectrum disorder to acquire. Tacts—verbal behavior evoked by nonverbal stimuli—are important for communicating about the world around oneself. Noun-verb tacts are part of a robust tact repertoire and may be addressed during applied behavior analytic intervention. When acquiring noun-verb tacts, it is important that the speaker learn to respond to many variations of stimuli like novel combinations of learned nouns and verbs, whic… more
Date: December 2023
Creator: White, Alexandria Blayce
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Transport of Proton, Hydrogen and Alpha Particles through Atomic Hydrogen Environment

Description: Using multiple theoretical methods, comprehensive calculations are performed to create a new and more comprehensive data set for elastic scattering and related transport cross sections for collisions of (H$^+$ + H), (H + H) and (He$^{2+}$ + H) in the center-of-mass energy frame. In proton-atomic hydrogen collisions, we have significantly updated and extended previous work of elastic scattering, charge transfer and related transport integral and differential cross sections in the center-of-mass … more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Zaman, Tamanna
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Teacher Perceptions of Innovative Learning Environments: Implications for Leaders

Description: Innovative Learning Environments are increasingly built and implemented in schools, but are not necessarily being used according to designers' intentions. The goal of this study was to examine teacher perceptions of the innovative learning spaces they were charged with using and to determine if they were being used effectively and as designed. The research was guided by three basic questions: what were the teachers' perceptions of these spaces, was the teacher pedagogy need to change to acco… more
Date: December 2023
Creator: Elliott, Robyn Kaye
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Predictors of Academic Success in an Early College Entrance Program

Description: Early college entrance programs have existed in the United States since the 1950s, but in-depth research on academic success in these programs is lacking. Every year, early college entrance programs utilize a variety of data-gathering and candidate-screening techniques to select hundreds of students for admission into these accelerated programs. However, only a smattering of research articles has discussed the factors that predict academic success in these programs. This exploratory study inves… more
Date: December 2023
Creator: Earls, Samuel Wayne
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Effects of Specific and Disguised Mands on Staff's Reinforcer Delivery

Description: Residential facilities for adults with developmental disabilities offer essential accommodations and support services, with fostering communication for residents as an important aspect of care. Despite the importance of communication, previous research has identified concerns about staff performance (SP) in facilitating positive social interactions, such as engaging in consequent-mediating behavior for residents' mands. Previous research has primarily focused on improving SP through skills-base… more
Date: December 2023
Creator: Richey, Caroline Nicole
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Development and Characterization of Compliant Bioelectronic Devices for Gastrointestinal Stimulation

Description: In this research, we aimed to develop thin-film devices on a polymer substrate and an alternative 3D-printed device with macroelectrodes for treating gastrointestinal (GI) conditions. First, the fabrication of thin-film devices was demonstrated on a softening thiol-ene/acrylate polymer utilizing titanium nitride (TiN) as electrode material. This was achieved by utilizing cleanroom fabrication processes such as photolithography, wet and dry etching. The functionality of the device was shown by p… more
This item is restricted from view until January 1, 2026.
Date: December 2023
Creator: Chitrakar, Chandani
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Directing Transition Metal Catalysis of Second and Third Row Metals through Ligand Design

Description: Ligand design is important due to a ligand's ability to tune properties of the transition metals, such as catalytic activity and selectivity. Gold(I) catalysts can be directly impacted by ligands electronically as well as with steric bulk when undergoing enantioselective and regioselective reactions. In the dissertation, a series of gold(I) acyclic diaminocarbenes were synthesized and used to explore the 1,6 enyne cyclization/hydroarylation. The use of metal templated synthesis of the gold(I) a… more
This item is restricted from view until January 1, 2025.
Date: December 2023
Creator: Nguyen, John
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Sonorous Andean Landscapes: A Performance Guide for Guevara Ochoa's "Yaraví, Danza y Huayno" (n.d) and Vivanco's "Fantasía Andina" (c. 1988)

Description: Peruvian composers Armando Guevara Ochoa (1926–2013) and César Vivanco (b. 1949) borrow and transplant musical elements from Andean folk tradition into their compositions for the modern classical flute. Guevara Ochoa's Yaraví, Danza y Huayno and Vivanco's Fantasía Andina are solo flute pieces rooted in Peruvian folklore traditions and Andean instrumental performance. The purpose of this dissertation is to provide flutists with technical and interpretative guidance in preparing these pieces. Yar… more
Date: December 2023
Creator: Romo Bocanegra, Jossecarlo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

FruitPAL: An IoT-Enabled Framework for Automatic Monitoring of Fruit Consumption in Smart Healthcare

Description: This research proposes FruitPAL and FruitPAL 2.0. They are full automatic devices that can detect fruit consumption to reduce the risk of disease. Allergies to fruits can seriously impair the immune system. A novel device (FruitPAL) detecting fruit that can cause allergies is proposed in this thesis. The device can detect fifteen types of fruit and alert the caregiver when an allergic reaction may have happened. The YOLOv8 model is employed to enhance accuracy and response time in detecting dan… more
Date: December 2023
Creator: Alkinani, Abdulrahman Ibrahim M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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