Search Results

open access

Investigating the Role of Concurrent Verbal Behavior in a Rule-Shifting Scenario

Description: The present study evaluates the effects of incompatible verbal behavior when engaging in the Wisconsin Card Sorting Test (WCST). The WCST is a complex task that requires participants to match stimulus cards based on self-generated rules. After a varying number of trials, the rule changes and the participant will have to self-generate a new rule. Verbal behavior, specifically joint control, is likely involved in rule-following. Seven participants took part in this study. Participants engaged in… more
Date: August 2022
Creator: Cutler, Jacquelyn Marie
Partner: UNT Libraries

Adjustments in Business Operations during the COVID-19 Pandemic: An Analysis of Natural and Cultural Resource Sites in Texas

Description: This research expands the theoretical concept of human adjustment to floods established by Gilbert F. White and incorporates his adjustment concept to examine the range of adjustments in business operations adopted by Texas' natural and/or cultural resources sites during the first year of the COVID-19 pandemic. This mixed-methods study consisted of an online survey with a follow-up semi-structured phone interview. The survey data was analyzed using descriptive statistics and the interview data … more
Date: August 2022
Creator: Tamima, Salvesila
Partner: UNT Libraries

Investigation of Room Temperature Sputtering and Laser Annealing of Chalcogen Rich TMDs for Opto-Electronics

Description: Chalcogen-rich transition-metal dichalcogenide (TMD) magnetron sputtering targets were custom manufactured via ball milling and sintering in the interest of depositing p-type chalcogen-rich films. Room temperature radio frequency (RF) magnetron sputtering produced ultra-thin amorphous precursor of WSx and MoSx (where x is between 2-3) on several different substrates. The influence of working pressure on the MoS3 content of the amorphous films was explored with X-ray photoelectron spectroscopy (… more
Date: August 2022
Creator: Gellerup, Branden Spencer
Partner: UNT Libraries

An Explanation of Racial Attitudes Utilizing Intergroup Threat Theory and Group Empathy Theory

Description: This project examined the effects of threat perceptions and group empathy on racial outgroup attitudes. The relationship between threat perception and increased racial prejudice has been well established within the literature, but the effect of group empathy within this dynamic has been largely undocumented. The following study utilizes data from the American National Election Study 2020 Time Series to analyze racial outgroup attitudes among subsamples of Blacks (n = 726), Hispanics (n = 762), … more
Date: August 2022
Creator: Larrison, KayLynn Marie
Partner: UNT Libraries

Latinos for Trump? National Origin, Nativity Status, and Favorability for Trump in 2016

Description: In this study, I examine the relationship between national origin, nativity status, and favorability toward Donald Trump among Latinos in 2016. In particular, I examine the relationship between Cubans, Dominicans, and "other" Latinos to understand how differences in national origin and nativity status influence Trump favorability. The term "Latino" is a pan-ethnic term used to describe individuals with ancestry from Latin America who share a common language, religion and culture. However, studi… more
Date: August 2022
Creator: Moreno, Vianni Alyssa
Partner: UNT Libraries
open access

Structural Affordances and Framing Methods in Animal Rescue Facebook Posts

Description: The overpopulation of domestic animals has become an ongoing problem across the United States. Approximately 1.5 million animals are being euthanized in the United States every year. In fact, shelters euthanize about 23 % of the animals they take in. However, the euthanasia rate would be much greater without animal rescues, which are different than animal shelters. Animal rescues are unique from shelters because they are not government-funded, and they do not usually have a physical location. B… more
Date: August 2022
Creator: Muns, Karan Elizabeth
Partner: UNT Libraries
open access

Exploring Functional Interdependence of Mands, Tacts, and Intraverbals after Brain Injury

Description: One goal of this study was to evaluate the emergence of mands and intraverbals following tact acquisition for individuals with aphasia due to acquired brain injury. A second goal was to evaluate the transfer of shortened latencies as a function of tact training across untrained operants. In Study 1, the dependent measure was accuracy of responding and in Study 2, the dependent measures were rate and latency of responding. Participants for Study 1 were two uninjured adults (pilot) and two adults… more
Date: August 2022
Creator: Baltazar-Mars, Marla
Partner: UNT Libraries
open access

English Loanwords in French: A Corpus-Driven Analysis of Corporate Websites

Description: This thesis explores the use of English loanwords in French discourse found on seven France-based corporate websites and the website of one government ministry in France. The following overarching question guided this research project: To what extent are English loanwords used in French for marketing purposes or other reasons? As expected, the results varied greatly from website to website, but it is clear from my analysis of this relatively small corpus that the use of English is widespread in… more
Date: August 2022
Creator: Padilla, Werner G
Partner: UNT Libraries
open access

"Access Points"

Description: Access Points explores the different relationships that humans have to land, focusing on the various ways that the area known as the Wichita Mountains Wildlife Refuge is used, appreciated, and preserved by disparate groups. The natural beauty of this Wildlife Refuge and its striking appearance amidst encircling plains makes it a popular destination for many groups of people, including the local rock-climbing community and generations of indigenous peoples whose connection with this land is as d… more
Date: August 2022
Creator: Dye, Aaron Charles
Partner: UNT Libraries

Scuffing and Wear Prevention in Low Viscosity Hydrocarbon Fuels

Description: To design high pressure fuel system components that resist wear and scuffing failure when operated in low viscosity fuels, a comprehensive study on the tribological performance of various existing coating materials is necessary. This thesis aims to provide the relative performance of a variety of coating materials across different fuel environments by testing them in conditions that model those experienced in fuel pumps. The relative performance of these coatings are then indexed across a varie… more
Date: August 2022
Creator: Dockins, Maddox Wade
Partner: UNT Libraries
open access

Efficient Convolutional Neural Networks for Image Processing Applications

Description: Modern machine learning techniques focus on extremely deep and multi-pathed networks, resulting in large memory and computational requirements. This thesis explores techniques for designing efficient convolutional networks including pixel shuffling, depthwise convolutions, and various activation fucntions. These techniques are then applied to two image processing domains: single-image super-resolution and image compression. The super-resolution model, TinyPSSR, is one-third the size of the next… more
Date: August 2022
Creator: Chiapputo, Nicholas J.
Partner: UNT Libraries
open access

Utilization of Telemedicine by People with Chronic Health Conditions during the COVID-19 Pandemic

Description: This study sought to better understand the experiences of individuals with a chronic health condition utilizing telemedicine during the first twelve months of the COVID-19 pandemic. To do this, an online survey was advertised in two private Facebook support groups for individuals with adrenal insufficiency; a chronic health condition that requires frequent communication with healthcare providers. The survey consisted primarily of closed-response questions which examined the demographic data of … more
Date: August 2022
Creator: Barker, Tori Saige
Partner: UNT Libraries
open access

"Come along, Floyd!" An Ethnographic Study of the Crystal Cave District at Mammoth Cave National Park

Description: Cultural landscape reports (CLR) are commonly utilized by the National Park Service to define the significance of cultural landscapes. This thesis explores the importance of documenting not only physical characteristics of cultural landscapes, but the cultural elements such as associated values, beliefs, ideas, and traditions. My applied research was conducted for Mammoth Cave National located in Mammoth Cave, Kentucky and focuses on the Crystal Cave District. Research explores data collected t… more
Date: August 2022
Creator: McClain, Elisabeth Ray
Partner: UNT Libraries
open access

Heat Transfer Analysis of Bio-Printed Tissue Mimicking Material Mixed with Silver Nanoparticles

Description: Novel tissue mimicking materials have been developed for cancer treatment research. In the present research work, the tissue mimicking material is printed using 3D bioprinting technology. The nanoparticles are homogeneously mixed with tissue mimicking materials to enhance the heating capacity. The thermal conductivity of tissue mimicking materials is measured using a micropipette thermal sensor (MTS). Further, the optimal value is identified based on optimization technique and incorporated into… more
Date: August 2022
Creator: Chandrasegaran, Jedeshkeran
Partner: UNT Libraries

Engineering Cardiac Organoid Vascularization via Fluid Shear Stress and Vascular-Promoting Growth Factors

Description: Cardiovascular disease (CVD) is the leading cause of death internationally. Efforts to decrease CVD death has been explored through stem cell technology, specifically organoid formation. Current cardiac organoid models lack the vascular networks for nutrient supply and maturation. In this study, pillar perfusion technology is used to fabricate cardiac organoids and induce vascularization via dynamic culturing and the addition of vascular promoting growth factors (GFs). In addition to this study… more
Date: August 2022
Creator: Huerta Gomez, Angello
Partner: UNT Libraries
open access

Dido the Chaste: A Characterization of Dido in Spanish Baroque Pasticcio Opera

Description: The Dido myth has evolved and been adapted by many cultures over the centuries. Each Dido was altered to fit the needs of its creator, their society and customs. Despite these variations, every Dido retelling is derived from the Virgilian Dido, historical Dido, or chaste Dido narrative, or a combination of these stories. The pasticcio opera, Ópera armónica al estilo italiano que se intitula Dido y Eneas draws on the general Virgilian plot but emphasizes the chaste Dido narrative. The changes in… more
Date: August 2022
Creator: Zimmerman, Camila
Partner: UNT Libraries
open access

Advances to Convolutional Neural Network Architectures for Prediction and Classification with Applications in the First Dimensional Space

Description: In the vast field of signal processing, machine learning is rapidly expanding its domain into all realms. As a constituent of this expansion, this thesis presents contributive work on advancements in machine learning algorithms by building on the shoulder of giants. The first chapter of this thesis contains enhancements to a CNN (convolutional neural network) for better classification of heartbeat arrhythmia. The network goes through a two stage development, the first being augmentations to the… more
Date: August 2022
Creator: Kim, Hae Jin
Partner: UNT Libraries
open access

"Visceral Data"

Description: Visceral Data is a short documentary formatted for 360-cinema (commonly referred to as virtual reality or VR) that explores the integration of art and science, and how aesthetically creative treatments of raw data are an engaging way to interpret complex information. With Roger Malina, executive editor of Leonardo, the world's foremost academic journal for the intersections of art, science, and technology, providing a narrative overview of the subject, six art-scientists/science-artists discuss… more
Date: August 2022
Creator: DiFalco, Elaine Celleste
Partner: UNT Libraries

Development of an Enclosed Evaporation Chamber Utilizing a Fresnel Lens Solar Concentrator

Description: This thesis project investigates the configuration of an enclosed evaporation chamber with the intention of converting seawater into potable freshwater. The evaporation chamber's sole heat source is provided by a Fresnel lens, located above the chamber, which concentrates sunlight onto a 3-inch diameter focal plate built into the core of the chamber. The design of the evaporation chamber is modeled after a solar still and is coupled with a heat exchanger to boost efficiency of the system. The c… more
Date: August 2022
Creator: Planz, Bridger T
Partner: UNT Libraries
open access

The Effects of Skilled Dialogue Simulation Coaching on the Collaborative Verbal Behavior of Behavior Analysts in Training

Description: Despite the evidence that supports the benefits of a holistic, collaborative approach to autism intervention, but there is little training to teach those skills to professionals. Behavior analysts working in applied settings will often partner with different individuals from very different backgrounds and disciplines. Skilled Dialogue has been recommended as an approach to conversations that values everyone's contributions in fostering compassionate, collaborative, and culturally responsive car… more
Date: July 2023
Creator: Webb, Maia Grenada
Partner: UNT Libraries
open access

Exploring the Synergistic Effects of MXene-based Nanocomposites for Superlubricity and Friction/Wear Reduction on Rough Steel Surfaces

Description: The aim of this thesis is to advance the field of solid lubrication science by developing coatings that provide reliable performance in ambient conditions, work on rough surfaces, and are amenable to industrial size and design complexities. Two different coating systems, Ti3C2Tx-MoS2 and Ti3C2Tx-Graphene Oxide blends, were studied in this work. The Ti3C2Tx-MoS2 nanocomposites were spray-coated onto rough 52100-grade steel surfaces, and their tribological performance was evaluated in a ball-on-d… more
Date: July 2023
Creator: Macknojia, Ali Zayaan
Partner: UNT Libraries
open access

Mother Dearest: Understanding Attachment Styles of Juvenile Offenders across Crime Types

Description: This exploratory study investigated the relationship between attachment style and offense types of juvenile offenders to determine whether there were commonalities among the cohort and their attachment style. Much of the peer-reviewed literature focuses on adult sex offenders and attachment style but neglects the juvenile population. The present study utilized secondary data from the Texas Juvenile Justice Department (TJJD) which included adjudicated juveniles with Positive Achievement Change T… more
Date: July 2023
Creator: White, Lindsey Nicole
Partner: UNT Libraries
open access

The Experiences of Young Adult-Aged Women from South Asian Countries Attempting to Participate in Sport and Physical Activity in the United States

Description: This study aimed to broaden the understanding of young South Asian women's experiences/relationships and participation in leisure physical activities at universities in the United States. Using a phenomenological design, semi-structured interviews of 20-30 minutes duration were conducted with 5 South Asian women about their relationships and experiences when participating or attempting to participate in physical activity while attending university in the US. The following criteria were set for … more
Date: July 2023
Creator: Rahman, Sohaila
Partner: UNT Libraries
open access

Investigation of Interfacial Property with Imperfection: A Machine Learning Approach

Description: Interfacial mechanical properties of adhesive joints are very crucial in board applications, including composites, multilayer structures, and biomedical devices. Establishing traction-separation (T-S) relations for interfacial adhesion can evaluate mechanical and structural reliability, robustness, and failure criteria. Due to the short range of interfacial adhesion such as micro to nanoscale, accurate measurements of T-S relations remain challenging. The advent of machine learning (ML) became … more
Date: July 2023
Creator: Ferdousi, Sanjida
Partner: UNT Libraries
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