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open access

The Impostor Phenomenon among Female High School Principals: A Mixed Methods Study

Description: The purpose of this sequential mixed-methods study was to explore the feelings, thoughts, critical incidents, and coping mechanisms of female high school principals and their experiences with the impostor phenomenon. A hierarchical multiple regression revealed that none of the demographic factors such as number of years as a head high school principal, age, percentage of female high school principals in the district, race/ethnicity, marital status, mentorship status, and community type, were st… more
Date: December 2020
Creator: Moriel de Cedeño, Daphne
Partner: UNT Libraries
open access

Application of Novel Microporous Polyolefin Silica-Based Substrate in Paper Spray Mass Spectrometry (PS-MS)

Description: This study addressed five key applications of paper spray mass spectrometry (PS-MS): (i) comparative analysis of the microporous substrate with the cellulose-based substrate in drug detection; (ii) detection of more than 190 fentanyl analogs with their fragmentation pattern can be implemented in the future reference for quicker, accurate and sensitive determination; (iii) exploring sweat in a fingerprint to be considered an alternate method to recognize non-invasive markers of metabolites, lip… more
Date: December 2020
Creator: Weligamage De Silva, Imesha
Partner: UNT Libraries
open access

Sociocultural Considerations and the Parallel Agendas of Music and Text in the Lullaby

Description: This research is an investigation of how the lullaby, which is often viewed as purely a simple and pretty song, is a multifaceted vocal tradition that carries historical and cultural significance. As an exploration of how sociocultural factors impact the emotions expressed and the stories told in lullabies, this research encourages deeper examinations of lullaby texts in relation to the historical, cultural, and social aspects reflected in their textual themes. Through the close analysis of tex… more
Date: December 2020
Creator: Estwick, Brandi
Partner: UNT Libraries
open access

Role of 5.8S rRNA in Zebrafish and Human Blood Coagulation

Description: Hemolytic disorders are characterized by hemolysis and are prone to thrombosis. Previously, it has been shown that the RNA released from damaged blood cells activates clotting. However, the nature of RNA released from hemolysis is still elusive. We found that after hemolysis, the red blood cells from both zebrafish and humans release 5.8S rRNA. This RNA activated coagulation in zebrafish and human plasmas. Using both natural and synthetic 5.8S rRNA and its synthetic truncated fragments, we foun… more
Date: December 2020
Creator: Alharbi, Abdulmajeed Haya M.
Partner: UNT Libraries
open access

Re-Assessing Nationalism in the Art Songs of Jaime León

Description: Colombian composer Jaime León (1921-2015) is known for his art songs. Most of the current scholarly literature about León defines him as a nationalist composer even though a majority of his songs do not appear to have nationalist traits. This document examines a representative selection of León's songs divided into three categories: songs influenced by the bambuco (the Colombian genre most present in his songs); songs whose text refers to Colombian culture; and songs without Colombian elements … more
Date: December 2020
Creator: Ávila Martínez, Juan Sebastián
Partner: UNT Libraries
open access

Development and Disruption of Collateral Behavior and DRL Performances: A PORTL Exploration

Description: One schedule of reinforcement that is used to decrease the rate of a target behavior is differential reinforcement of low rates (DRL). During this schedule, reinforcement is delivered for a target response if it occurs after a certain amount of time has passed since the last instance of this target response. The current study used a table-top game called PORTL and college student participants to investigate how collateral patterns develop and are disrupted during DRL schedules. After the partic… more
Date: December 2020
Creator: Herzog, Leah
Partner: UNT Libraries
open access

Job Satisfaction, Organizational Commitment, and Turnover Intention of Teachers Using Computer-Based Curriculum Delivery in a Drop-Out Recovery High School

Description: This current study examined the job satisfaction and turnover intention of teachers working in a drop out recovery program using online curriculum. The subjects of the study were from one charter school district in north Texas that is designated as a drop out recovery program. This qualitative case study used interviews and focus groups to examine eight different areas of teacher job satisfaction to examine factors that influence a teacher's intent to quit or remain at a school. Previous res… more
Date: December 2020
Creator: Beauchamp, Joey
Partner: UNT Libraries
open access

Epidemiologic Survey of a Unique Type of Task-Specific Dystonia in Brass Musicians

Description: Brass musicians are known to experience a performance problem that is sometimes called valsalva maneuver or musical stuttering. This problem is known to cause difficulty starting a first note, tension in the throat, and tightness in the chest. Unfortunately, the research literature lacks sufficient details for evidence-based interventions. Therefore, the purpose of this study is to characterize and define this performance problem as experienced by brass musicians. An online epidemiologic survey… more
Date: December 2020
Creator: Wallace, Eric (Trombonist)
Partner: UNT Libraries
open access

User Privacy Perception and Concerns Regarding the Use of Cloud-Based Assistants

Description: Cloud-based assistants like the Google Home and the Amazon Alexa have become ubiquitous in our homes. Users can simply communicate with the devices using a smartphone application. There are privacy concerns associated with cloud-based assistants. For example, users do not know what type of information is being sent to the device manufacturer, if the device is stealthily listening to conversations, data retention, or who else has access to the data. Privacy is about perception. The goal of this … more
Date: December 2020
Creator: Awojobi, Abiodun
Partner: UNT Libraries
open access

Class Enumeration and Parameter Bias in Growth Mixture Models with Misspecified Time-Varying Covariates: A Monte Carlo Simulation Study

Description: Growth mixture modeling (GMM) is a useful tool for examining both between- and within-persons change over time and uncovering unobserved heterogeneity in growth trajectories. Importantly, the correct extraction of latent classes and parameter recovery can be dependent upon the type of covariates used. Time-varying covariates (TVCs) can influence class membership but are scarcely included in GMMs as predictors. Other times, TVCs are incorrectly modeled as time-invariant covariates (TICs). Additi… more
Date: December 2020
Creator: Palka, Jayme M.
Partner: UNT Libraries
open access

The Austrian Army in the War of the Sixth Coalition: A Reassessment

Description: The Austrian army played a crucial role in Napoleon's decisive defeat during the War of the Sixth Coalition. Often considered a staid, hidebound institution, the army showed considerable adaptation in a time that witnessed a revolution in the art of war. In particular, changes made after defeat in the War of the Fifth Coalition demonstrate the modernity of the army. It embraced the key features of the new revolutionary way of war, including mass mobilization, a strategy of annihilation, and … more
Date: December 2020
Creator: Messman, Daniel M
Partner: UNT Libraries
open access

M.I.S.S.I.O.N. (Making Inquiries into the Significance of Safety, Identity, Observations, and Needs) for Warfighters

Description: This paper examines the concept of safety as it encompasses the personal and technological spheres as imagined by a group of active duty service members, veterans, a police officer, and civilians, as well as the agency exercised by those with military or police backgrounds when it comes to safety technology. A group of seventeen individuals took part in a battlefield simulation to test a wearable junctional tourniquet created by ARMR Systems, LLC, an innovative advancement in tourniquet technol… more
Date: December 2020
Creator: Urdzik, Patricia Stadelman
Partner: UNT Libraries
open access

How a Schenkerian Analysis May Inform the Interpretation and Performance of J. S. Bach's Lute Music on the Guitar Using Selective Movements of Bach Lute Suite No. 4 in E Major (BWV1006A) as a Demonstration

Description: Continuing the discussion of interpreting J. S. Bach's lute music on the guitar, this dissertation seeks to demonstrate that Schenkerian analysis can assist the modern classical guitarist to better understand Bach's music. In particular, the Schenkerian approach provides an important methodology for studying Bach's music in depth, and then guiding performance practice on the guitar. Although there are many books and articles about transcribing, interpreting and performing Bach's music on the gu… more
Date: December 2020
Creator: Li, Zhi (Guitarist)
Partner: UNT Libraries

Using Kidpower® Social Narratives to Teach Individuals with Autism about Bullying

Description: Individuals with autism spectrum disorder (ASD) are at an increased risk to be victims of bullying due to the core characteristics of the disorder. Prior research has focused on understanding bullying from the perspectives of individuals with ASD, parents, and practitioners through interviews and questionnaires. However, limited evidence exists using interventions to teach individuals with ASD about how to identify and respond to bullying. This study employed Kidpower® bullying narratives to te… more
Date: December 2020
Creator: Anderson, Chelsi
Partner: UNT Libraries
open access

Thermal Transport Modeling in Three-Dimensional Pillared-Graphene Structures for Efficient Heat Removal

Description: Pillared-graphene structure (PGS) is a novel three-dimensional structure consists of parallel graphene sheets that are separated by carbon nanotube (CNT) pillars that is proposed for efficient thermal management of electronics. For microscale simulations, finite element analyses were carried out by imposing a heat flux on several PGS configurations using a Gaussian pulse. The temperature gradient and distribution in the structures was evaluated to determine the optimum design for heat transfer.… more
Date: December 2020
Creator: Almahmoud, Khaled Hasan Musa
Partner: UNT Libraries
open access

The Role of Faith-Based Congregations during Disaster Response and Recovery: A Case Study of Katy, Texas

Description: When governments are unable or unwilling to provide necessary relief to communities, local faith-based congregations (FBCs) step in and fill the gap. Though shown to provide for so many needs following disaster, FBCs have largely been left out of the institutional emergency management cycle. The aim of this study was to explore the role of FBCs in the disaster response and recovery process and investigate how recovery impacts FBCs. The primary objective of this study is to gain a better underst… more
Date: December 2020
Creator: Elliott, Julie R
Partner: UNT Libraries

Examining Alcohol Related Consequences in Undergraduate Sorority Women

Description: Members of Greek Life organizations consume more alcohol and participate in risky drinking behaviors at higher rate than their non-Greek counterparts due to deep rooted social norms within this population. Undergraduate sorority women at college and universities are often overlooked in research regarding trends in alcohol use in Greek Life organizations. However, women between the ages of 18 and 24 are more vulnerable to the consequences of heavy alcohol use compared to men, including liver dis… more
Date: December 2020
Creator: Cortez, Veronica L.
Partner: UNT Libraries

Queer in Fandom: A Uses and Gratifications Analysis of the Katy Perry Fan Community on Twitter

Description: Online fandom communities exist as a hub of subcultural construction for people across the globe. For queer people, fandom represents a space to safely converge over mutual interests. Previous research has focused on queer fans and popular music fans independently, often taking a pathological approach. This study qualitatively examines queer participants in the Katy Perry fandom through surveys and one-on-one interviews. The theoretical backbone of the study is built around uses and gratificati… more
Date: December 2020
Creator: Poteet, Maddison Jade
Partner: UNT Libraries
open access

The Guaraldi Sound: The Musical Devices that Characterize Vince Guaraldi's Improvisational and Compositional Idiom

Description: Vince Guaraldi (1928-1976) was a jazz pianist who achieved tremendous financial and commercial success in the 1960s with his popular recordings and his work for the Peanuts animated shorts. He cultivated a musical style that drew from several identifiable sources: boogie-woogie, bebop, Brazilian and Afro-Cuban jazz, and rock ‘n' roll. The result was a distinct approach to jazz which, although it may not have been as influential as that of some of his contemporaries, nevertheless constituted a u… more
Date: December 2020
Creator: Huntley, Alec Villars
Partner: UNT Libraries
open access

The Role of Interface in Crystal Growth, Energy Harvesting and Storage Applications

Description: A flexible nanofibrous PVDF-BaTiO3 composite material is prepared for impact sensing and biomechanical energy harvesting applications. Dielectric polyvinylidene fluoride (PVDF) and barium titanate (BaTiO3)-PVDF nanofibrous composites were made using the electrospinning process based on a design of experiments approach. The ultrasonication process was optimized using a 2k factorial DoE approach to disperse BaTiO3 particles in PVDF solution in DMF. Scanning electron microscopy was used to charact… more
Date: December 2020
Creator: Ramesh, Dinesh
Partner: UNT Libraries
open access

Atomic Layer Deposition of Boron Oxide and Boron Nitride for Ultrashallow Doping and Capping Applications

Description: The deposition of boron oxide (B₂O₃) films on silicon substrates is of significant interest in microelectronics for ultrashallow doping applications. However, thickness control and conformality of such films has been an issue in high aspect ratio 3D structures which have long replaced traditional planar transistor architectures. B₂O₃ films are also unstable in atmosphere, requiring a suitable capping barrier for passivation. The growth of continuous, stoichiometric B₂O₃ and boron nitride (BN) f… more
Date: December 2020
Creator: Pilli, Aparna
Partner: UNT Libraries
open access

The Relationship between Instructional Coaches and Principals

Description: As a form of teacher professional development, districts and schools are turning to an instructional coaching model for teacher learning, growth, and support. To date, however, few have sought to identify the specific characteristics and conditions that contribute to the success of the instructional coach, particularly in terms of the principal and instructional coach relationship. The purpose of this study was to explore the perceptions of instructional coaches regarding the types of support… more
Date: December 2020
Creator: Norman, Lani Suzanne
Partner: UNT Libraries
open access

An Orchestral Approach to Johannes Brahms' "Variationen und Fuge über ein Thema von Händel," Op. 24: Orchestral Transcription as an Interpretive Tool

Description: This dissertation provides an interpretive guide to Variationen und Fuge über ein Thema von Händel, Op. 24, written in 1861 by Johannes Brahms (1833–1897), in orchestral terms, using as basis the orchestral transcription by Edmund Rubbra (1901–1986), published as his Op. 47 in 1938. Not only does Brahms' Variationen present players with considerable pianistic difficulties, its intense harmonic and polyphonic structures make the music sound symphonic. The English composer Edmund Rubbra, a great … more
Date: December 2020
Creator: Yun, Hee Sun
Partner: UNT Libraries
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