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open access

3D Printed Self-Activated Carbon Electrodes for Supercapacitor Applications

Description: This study investigated a new approach to achieving high energy density supercapacitors (SCs) by using high surface area self-activated carbon from waste coffee grounds (WCGs) and modifying 3D printed electrodes' porous structure by varying infill density. The derived activated carbons' surface area, pore size, and pore volume were controlled by thermally treating the WCGs at different temperatures (1000˚C, 1100˚C, and 1200˚C) and post-treating with HCL to remove water-soluble ashes and contami… more
Date: July 2023
Creator: Disi, Onome Aghogho
Partner: UNT Libraries
open access

Accessibility and Pedagogical Value in Virtuosic American Trombone Solo Literature: A Performance Guide to "Divertimento for Trombone and Band" (2012) by Jack Stamp

Description: This dissertation is an examination of Divertimento for Solo Trombone and Wind Band by renowned wind band composer and conductor Jack Stamp. The result of this study is the illumination of a 21st-century composition for solo trombone and band that is made accessible for future performers, accomplished by constructing original musical exercises that are influenced by current trombone pedagogical materials that have either been edited, annotated or created by current performers and pedagogues s… more
Date: July 2023
Creator: Umholtz, Jeremiah L.
Partner: UNT Libraries
open access

Acculturation and Locus Of Control: Their Relationship to the Use of Inhalants

Description: This study analyzed the effects of acculturation, locus of control, and incidence of inhalant use on Mexican Americans. Information was collected from 275 subjects at three middle schools and one treatment center. The instrument consisted of Levenson's Locus of Control Scale, the Acculturation Rating Scale for Mexican Americans, and an incidence of use and family relationship questionnaire developed for this study. Statistical analysis indicated a relationship between acculturation and inhalant… more
Date: July 1989
Creator: Davis, Lynn Matthew
Partner: UNT Libraries
open access

Adoption of Innovation in a Community College Environment: User Perceptions of Virtual Reality (VR) Technology among Students Studying Emergency Medical Service (EMS)

Description: This research study examined the implementation of an extended reality (XR) lab on a community college campus to facilitate student and faculty access to immersive learning resources. The study, conducted during one skills day, involved 46 students and was designed to understand if integrating immersive VR into emergency medical technician (EMT) education could enhance learner confidence and motivation, develop problem-solving and analytical thinking skills, and thus connecting the classroom le… more
Date: July 2023
Creator: Das, Anila
Partner: UNT Libraries

Adult Attachment, Racial-Ethnic Identity, Racial-Ethnic Socialization, and Subjective Wellbeing

Description: The current study aimed to explore the direct effect of insecure adult attachment on subjective wellbeing and its indirect effect via racial-ethnic identity. Additionally, the present study examined the extent to which racial-ethnic socialization practices may moderate adult attachment and racial-ethnic identity link. The final sample included 213 emerging adults (M = 20.94; SD = 2.96) with diverse racial-ethnic backgrounds. PROCESS Model 4 and 1 were used to examine the direct and indirect eff… more
Date: July 2023
Creator: Toyama, Shiho
Partner: UNT Libraries
open access

Air Breathing Fish: Development of Air Breathing in Bristlenose Plecos (Ancistrus cirrhosus)

Description: The bristlenose pleco (Ancistrus cirrhosus) is a species of armored catfish in the Loricariidae family that breathes air facultatively when the aquatic environment becomes hypoxic. The bristlenose pleco uses its highly vascularized stomach as an air breathing organ. The two main goals of this developmental study were to determine the size of onset of air breathing and to determine the frequency of air breathing behavior in bristlenose plecos from juveniles to adults. Developing juveniles reach … more
Date: July 2023
Creator: Crowder, Lauren Whitney
Partner: UNT Libraries
open access

All for the Greater Good: A Strategic, Tactical, and Operational Level Analysis of Supply Chain Goal and Incentive Alignment

Description: Goal and incentive alignment are a means of establishing collaborative behavior in supply chains. Essay 1 examines goal and incentive alignment at the strategic level in the purchasing process. It employs survey research in conjunction with structural equation modelling to examine the source selection strategy as a means of aligning the goals of the offeror with those of the buyer. Essay 2 examines goal and incentive alignment at the tactical level. It uses discrete event simulation to explore … more
Date: July 2023
Creator: McConville, Sean Cask
Partner: UNT Libraries

Ambient Darkness and Consumer Behavior

Description: Ambient lighting has emerged as a key atmospheric factor influencing how consumers process environmental cues and their behaviors. However, surprisingly little research has examined how people think and feel in the dark (lower than 15 lux). This is particularly relevant given that consumers routinely work, pay bills, relax, consume and make purchases in settings with little or no light. My dissertation addresses this gap by examining how consumers regulate their goals and process information wh… more
This item is restricted from view until August 1, 2025.
Date: July 2023
Creator: Vo, Khue Ho Thuc
Partner: UNT Libraries
open access

An Analytical Critique of the Use of Twelve Equal Tones as Utilized in "Sonata-Fantasia" by George Rochberg

Description: This thesis centers around a certain twentieth-century compositionaI device, the method of composition with twelve tones. There are many terms to designate this device, for example: "basic set," "tone-row," "note-series," "serialism," "serial technique," "twelve-note series," "twelve-tone technique" or "twelve-tone method." TI is thesis is a methodical research demonstrating the contemporary conventional way of scientifically and artfully manipulating twelve equal tempered degrees of the chroma… more
Date: July 1968
Creator: Tiroff, Philip Knight
Partner: UNT Libraries
open access

Andrew Johnson and the South, 1865-1867

Description: The purpose of this dissertation is to examine the relationship of Andrew Johnson to the South and the effect of that relationship on presidential reconstruction. It is not meant to be a complete retelling of the story of reconstruction, rather it is an attempt to determine how Johnson affected southern ideas of reconstruction and, equally important, how southerners influenced Johnson.
Date: July 1970
Creator: Pierce, Michael D. (Michael Dale), 1940-
Partner: UNT Libraries
open access

Anti-S2 Peptides and Antibodies Binding Effect on Myosin S2 and Anti-S2 Peptide's Ability to Reach the Cardiomyocytes in vivo and Interfere in Muscle Contraction

Description: The anti-S2 peptides, the stabilizer and destabilizer, were designed to target myosin sub-fragment 2 (S2) in muscle. When the peptides are coupled to a heart-targeting molecule, they can reach the cardiomyocytes and interfere with cardiac muscle contraction. Monoclonal antibodies, MF20 and MF30, are also known to interact with light meromyosin and S2 respectively. The MF30 antibody compared to anti-S2 peptides and the MF20 antibody is used as a control to test the central hypothesis that: Both … more
Date: July 2023
Creator: Quedan, Duaa Mohamad Alhaj Mahmoud
Partner: UNT Libraries

An Assessment and Intervention Model for Establishing Observational Learning During Tact Trials

Description: Observational learning (OL) allows an individual to acquire novel responses by observing others' behavior and the corresponding consequences. The complexity of skills involved with OL may vary with the learning context. A learner may observe modeled responses to both trained (known) and untrained (unknown) stimuli or they may observe both reinforced (correct) and nonreinforced (incorrect) responses. The purpose of this study was to develop assessment and training procedures for OL component ski… more
This item is restricted from view until August 1, 2028.
Date: July 2023
Creator: Sansing, Elizabeth McKay
Partner: UNT Libraries
open access

An Assessment of Digital Stimulus Prompts to Teach Conditional Discriminations to Children with Autism

Description: Effective and efficient skill-acquisition procedures must be identified to support individualized behavioral programming for children with autism spectrum disorder (ASD). To do this, practitioners and researchers may use assessment-based instruction. Prompts are a common teaching strategy to promote skill acquisition. The purpose of this applied study was to use assessment-based instruction to evaluate the efficacy and efficiency of within- and extra-stimulus prompts to teach conditional discri… more
Date: July 2023
Creator: Niland, Haven Sierra
Partner: UNT Libraries
open access

A.B. Marx's Concept of Rondo and Sonata: A Critical Evaluation of His Explanations of Musical Form

Description: The third volume of A.B. Marx's theory treatise Die Lehre von der musikalischen Komposition is discussed. His definitions of rondo and sonata formal types are demonstrated in the first chapter in addition to the manner of their derivation through a developmental process originating in the Liedform. Musical examples chosen by Marx are examined in chapter two. These examples, taken from Mozart's and Beethoven's piano works, are evaluated in relation to Marx's definitions of the various types of f… more
Date: July 1993
Creator: Lang, Adelheid K.
Partner: UNT Libraries

Behavioral Transportation: The Role of Psychological, Cognitive, and Social Factors in Distracted Driving Behavior

Description: Logistics 4.0 suggests that increased automation can enhance performance, while Logistics 5.0 emphasizes the advantages of a modern workforce that combines humans and emerging technologies. However, the logistics industry needs a deeper understanding of human factors, an area that has been overlooked so far. To bridge this research gap, this dissertation investigated distracted driving behavior among individuals involved in transportation and logistics-based applications. This investigation emp… more
This item is restricted from view until August 1, 2025.
Date: July 2023
Creator: Gabaldon, Janeth
Partner: UNT Libraries

Blockchain for AI: Smarter Contracts to Secure Artificial Intelligence Algorithms

Description: In this dissertation, I investigate the existing smart contract problems that limit cognitive abilities. I use Taylor's serious expansion, polynomial equation, and fraction-based computations to overcome the limitations of calculations in smart contracts. To prove the hypothesis, I use these mathematical models to compute complex operations of naive Bayes, linear regression, decision trees, and neural network algorithms on Ethereum public test networks. The smart contracts achieve 95\% predict… more
Date: July 2023
Creator: Badruddoja, Syed
Partner: UNT Libraries

Burnout and Psychological Wellbeing among Taiwanese and American Graduate Students in Mental Health Services: Role of Adult Attachment, Emotion Regulation, and Self-Compassion

Description: Graduate students in mental health service training programs are at risk of experiencing burnout. Using adult attachment theory as the guiding framework, this study examined a conceptual model which depicted the direct and indirect effect of attachment insecurity on burnout and the subsequent psychological distress via low self-compassion and emotion regulation difficulty with two cultural samples recruited from the U.S. and Taiwan, respectively. The final sample included 216 U.S. mental health… more
This item is restricted from view until August 1, 2024.
Date: July 2023
Creator: Chao, Wan-Ju
Partner: UNT Libraries
open access

Can In-vivo Self-Monitoring Improve Discrete Trial Instruction Implementation?

Description: Beneficial consumer outcomes are most likely when behavior-analytic interventions are implemented with high procedural fidelity (i.e., degree to which the procedure is implemented as intended). Video self-monitoring, which involves teaching staff members to monitor their own procedural fidelity when watching recordings of themselves, can be used to improve and maintain high procedural fidelity, but video self-monitoring requires additional staff time and resources. In-vivo self-monitoring, whic… more
Date: July 2023
Creator: Lai, Rachel Nicole
Partner: UNT Libraries
open access

Child-Centered Play Therapy and Emotional and Behavioral Problems of Children on the Autism Spectrum

Description: The current study is the first repeated-measures design exploring the impact of child-centered play therapy (CCPT), an evidence-based child psychotherapy intervention, on autistic children's social-emotional assets, and emotional and behavioral problems across four times during intervention based on teacher reports. Participants consisted of 19 autistic children recruited from two Title-1 elementary schools in the southwest United States who were aged between 5 years and 8.25 years (M = 6.22, S… more
Date: July 2023
Creator: Chung, Regine Ki Ki
Partner: UNT Libraries
open access

Children's Experiences in Child-Centered Play Therapy: An Artwork-Based Phenomenological Investigation

Description: Child-centered play therapy (CCPT) is an empirically endorsed approach for children facing specific clinical concerns and life circumstances alike. The majority of research to date has accrued data about clients from secondary sources, such as adult report and observation. The purpose of this study was to explore children's perceptions of participating in CCPT by implementing a developmentally accessible interview medium, allowing children to share their experiences directly. Ten children betwe… more
Date: July 2023
Creator: Quinn, Carol
Partner: UNT Libraries
open access

The Chlorination of Amino Acid in Municipal Waste Effluents

Description: In model reaction systems to test amino acids in chlorinated waste effluents, several amino acids were chlorinated at high chlorine doses. (2000-4000 mg/1). Amino acids present in municipal waste effluents before and after chlorination were concentrated and purified using cation exchange and Chelex resins. After concentration and cleanup of the samples, the amino acids were derivatized by esterification of the acid functional groups and acylation of the amine groups. Identification and quantifi… more
Date: July 1977
Creator: Burleson, Jimmie L.
Partner: UNT Libraries
open access

Community College Presidents and Their Role in American Democracy: A Narrative Inquiry

Description: The American democracy is experiencing strain from the erosion of democratic norms and its political, judicial, social, and economic institutions. In short, the American democracy shows signs of democratic deconsolidation. Community colleges are higher education institutions that help consolidate the U.S. democracy by representing democratic values such as equality and opportunity. The purpose of my study was to explore how selected community college presidents understand and articulate the res… more
Date: July 2023
Creator: Sanders, Jonathon Mark
Partner: UNT Libraries
open access

Comparison of Neighborhood Demographics and Post-Buyout Land Use Development in Harris County, Texas, USA

Description: Recent research suggests that race and ethnicity influence post-buyout land management in Harris County, Texas, yet lacked systematic empirical evidence to fully understand the relationship between management and demographics. To address this gap, this study analyzes post-buyout land use management practices and compares them with the socio-economic characteristics of the adjacent neighborhood at the block level in Harris County, Texas, an area with a long buyout history. I first identified pos… more
Date: July 2023
Creator: Niazi, Sumaira
Partner: UNT Libraries
open access

A Comparison of the Use of Music in the Holy Eucharist of the Roman Catholic Church and the Sabbath Morning Service of the Jewish Synagogue in the Middle Ages

Description: The problem with which this investigation is concerned is that of comparing the medieval musical traditions of two of the world's most influential religions. The similarities are discussed in two major categories: the comparison of liturgical texts and ritual, and the comparison of the music appearing in each ritual. This study has one main purpose. That purpose is to demonstrate how, through musical traditions, each religion has developed through the influence of the other. Samples of the litu… more
Date: July 1971
Creator: Simmons, Sandra K. (Sandra Kay)
Partner: UNT Libraries
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