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open access

Abelian Group Actions and Hypersmooth Equivalence Relations

Description: We show that any Borel action on a standard Borel space of a group which is topologically isomorphic to the sum of a countable abelian group with a countable sum of lines and circles induces an orbit equivalence relation which is hypersmooth. We also show that any Borel action of a second countable locally compact abelian group on a standard Borel space induces an orbit equivalence relation which is essentially hyperfinite, generalizing a result of Gao and Jackson for the countable abelian grou… more
Date: May 2019
Creator: Cotton, Michael R.
Item Type: Refine your search to only Thesis or Dissertation

Allusions and Borrowings in Selected Works by Christopher Rouse: Interpreting Manner, Meaning, and Motive through a Narratological Lens

Description: Christopher Rouse (b. 1949), winner of the Pulitzer Prize for his Trombone Concerto (1993) and a Grammy award for his Concerto de Gaudi (1999), has come to the forefront as one of America's most prominent orchestral composers. Several of Rouse's works feature quotations of and strong allusions to other composers' works that are used both rhetorically and structurally. These borrowings range from a variety of different genres and styles of works, from Claudio Monteverdi's L'incoronazione di Popp… more
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Date: May 2019
Creator: Morey, Michael J.
Item Type: Refine your search to only Thesis or Dissertation
open access

American Lawn Addictions: Effects of Environmental Education on Student Preferences for Xeriscaping as an Alternative in North Central Texas, USA

Description: Urban land use and land cover has changed in the USA, giving rise to the American lawn – manicured, resource-intensive, and non-native. Green infrastructure design has been suggested in the literature as a potential alternative to the American lawn when managed as native xeriscapes, which require little to no irrigation after establishment. Given the influence of public preference on landscaping decisions, what is the relationship between the perceived value and ecological benefits of the Ameri… more
Date: May 2019
Creator: Williams, Jared L.
Item Type: Refine your search to only Thesis or Dissertation
open access

An Analysis of Emma Diruf Seiler's Teaching Philosophy and Contribution to Voice Pedagogy

Description: Emma Diruf Seiler (1821-1886) was a Bavarian-American voice teacher and scientist who wrote and published Altes und Neues über die Ausbildung des Gesangorganes mit besonderer Rücksicht auf die Frauenstimme (Old and New in the Art of Singing, with Special Attention to the Female Voice) in 1861 while working in Leipzig. It was translated by William Henry Furness and published in Philadelphia as The Voice in Singing in 1868. This pedagogue and her writings are largely unknown to those who study hi… more
Date: May 2019
Creator: Sullivan, Kristen (Kristen Janell)
Item Type: Refine your search to only Thesis or Dissertation
open access

An Analysis of Legal Liability of Virginia Educators and School Systems

Description: The doctrine of sovereign immunity in the Commonwealth of Virginia has evolved over time and the redefinition of the doctrine has been subjected to the interpretation by courts involving cases with varied facts and circumstances that have challenged the boundaries and flexibility of this legal concept. Determining the protection that a state agent was entitled to was the guiding principle in case law regarding sovereign immunity; however, understanding the purpose and intent of the doctrine of … more
Date: May 2019
Creator: Johnson, Tracy Lou
Item Type: Refine your search to only Thesis or Dissertation
open access

Annihilators of Bounded Indecomposable Modules of Vec(R)

Description: The Lie algebra Vec(ℝ) of polynomial vector fields on the line acts naturally on ℂ[]. This action has a one-parameter family of deformations called the tensor density modules F_λ. The bounded indecomposable modules of Vec(ℝ) of length 2 composed of tensor density modules have been classified by Feigin and Fuchs. We present progress towards describing the annihilators of the unique indecomposable extension of F_λ by F_(λ+2) in the non-resonant case λ ≠ -½. We give the intersection of the annihil… more
Date: May 2019
Creator: Kenefake, Tyler Christian
Item Type: Refine your search to only Thesis or Dissertation
open access

Antimicrobial and Anti-Platelet Activity in Botanical Extracts of Plants Collected in Northern Thailand

Description: The purpose of my research work was to assess a variety of Northern Thailand plants tissue extracts for antibacterial and anti-platelet aggregation activity. The Minimum Inhibitory Concentration assay method was used to assess antimicrobial activity of plant extracts, while the Zebrafish Platelet Aggregation Assay and the in vitro Whole Human Blood Impedance Aggregation Assay were used to study anti-platelet activity. Forty one plant extracts harvested from the tissues of 26 plants collected fr… more
Date: May 2019
Creator: Patcharapinyopong, Thanasan
Item Type: Refine your search to only Thesis or Dissertation
open access

Assessing Program-Readiness for Dental/Medical Tolerance

Description: Many clients with developmental and/or intellectual disabilities (ID/DD) do not tolerate routine medical or dental procedures and may require intrusive interventions, including restraint of various types (i.e. chemical, mechanical, physical, etc.) during appointments. Graduated exposure, or stimulus fading, along with reinforcement for compliance, have been shown to increase cooperation and tolerance in some clients; however, many do not respond to these types of interventions. Nine participant… more
Date: May 2019
Creator: Heath, Hayden Lee
Item Type: Refine your search to only Thesis or Dissertation
open access

An Assessment of Riparian Buffer Effectiveness in the Upper Hickory Creek Watershed: A GIS Approach Using the Riparian Buffer Delineation Equation (RBDE) and the Buffer Improvement Potential Percentage (BP)

Description: As population increases and urbanization occurs, watershed management will be critical in the protection of water resources in North Central Texas. By 2040, Denton County will nearly double its 2010 population. The Upper Hickory Creek Watershed lies west of Denton and empties into Lake Lewisville. Lake Lewisville provides drinking water for Denton, Dallas, and other neighboring cities. Mitigation of non-point source pollutants as a result of urban and agricultural practices is essential to prot… more
Date: May 2019
Creator: Yesildirek, Monica Veale
Item Type: Refine your search to only Thesis or Dissertation
open access

"A Balloon Flower": A Study and Interpretive Guide to the Gagok of Jihoon Park

Description: Jihoon Park (b.1973), a South Korean composer with over 500 compositions spanning multiple genres, is treasured in his motherland as the most noteworthy composer of his generation. This study provides an in-depth introduction of the gagok (Korean art songs) of Park to Western teachers and students of singing, discussing his compositional techniques and their application to the interpretation of his selected songs. Moreover, the introduction to International Korean Phonetic Alphabet (IKPA) to su… more
Date: May 2019
Creator: Choe, Joanne
Item Type: Refine your search to only Thesis or Dissertation
open access

Beyond the Binary: The Intersection of Gender and Cross-Cultural Identity in Reena Esmail's Life and Choral Works

Description: Beyond the Binary explores the intersection of gender with cross-cultural identity in composer Reena Esmail's professional life and choral music. This intersection manifests in her musical style, which accesses the resonant spaces between Western and Indian classical music. I argue that it is through the convergence of Esmail's gender identity with her cross-cultural identity that her compositions challenge gender norms and break down perceived barriers between East and West, inviting her liste… more
Date: May 2019
Creator: Pope, Lindsay (Choral conductor)
Item Type: Refine your search to only Thesis or Dissertation

Bio-Inspired Material Surfaces with Self-cleaning, Micromanipulation and Water Collection

Description: Geckos are famous for the skill of switchable adhesion that they use to stick on various surface while keep their fingers super clean. In the dissertation, a unique mechanism was discovered to explain gecko self-cleaning phenomena. Using atomic force microscopy (AFM), we managed to compare the microparticle-substrate adhesion and the microparticle-seta adhesion with a single seta bonded to the AFM cantilever. A dynamic effect was approved that high pulling-off speed could increase the micropart… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2019
Creator: Wan, Yiyang
Item Type: Refine your search to only Thesis or Dissertation
open access

The Bobwhite Population Decline: Its History, Genetic Consequences, and Studies on Techniques for Locating and Assessing Current Populations

Description: The northern bobwhite (Colinus virginianus) population decline is a severe, rangewide phenomenon beginning >150 years ago and continuing today. In this investigation, I: 1. document the timeline of bobwhite population decline and unintended genetic consequences of attempted remedies, 2) develop a model useful for predicting possible locations of potentially sustainable bobwhite populations in semiarid rangeland in Texas and Oklahoma, and 3) examine the relationship between population monitoring… more
Date: May 2019
Creator: Whitt, Jeffrey Glen
Item Type: Refine your search to only Thesis or Dissertation
open access

Bouncing Back: Resilience as a Moderator between Aggression and Depression in Older Gay Men and Lesbians Group Differences

Description: Older gay men and lesbians may be at greater risk for depression than older sexual majority adults due to a lifetime of sexual minority stress. We hypothesize that aggression and being single are positively associated with depression. Resilience is negatively associated with depression. Aggression, being single and resilience account for a significant proportion of variance in depression. Resilience moderates the relationship between aggression and depression. Significant differences between ol… more
Date: May 2019
Creator: Griggs, Tosha
Item Type: Refine your search to only Thesis or Dissertation
open access

The Brazilian Art Song and the Non-Brazilian Portuguese Singer: A Performance Guide to Nine Songs by Alberto Nepomuceno

Description: Alberto Nepomuceno (1864-1920) is considered to be the father of the Brazilian art song. With a total of seventy songs, Nepomuceno revolutionized and established a new path to the Brazilian art song. His songs were innovative because they: (1) incorporated folk elements in his songs, (2) introduced Portuguese as a language acceptable in bel canto style and (3) established Brazilian songs in the tradition of the European vanguard. His approach influenced several composers including his young stu… more
Date: May 2019
Creator: Riggs, Rawlianne
Item Type: Refine your search to only Thesis or Dissertation

Brazos

Description: Brazos is a collection of poetry that comments on and critiques life in a small town in Texas. These poems situate the speaker both in this town and in spaces removed from the town, but the work always grapples with questions of how the speaker identifies himself via the relationship to that space. The creative portion is accompanied by a critical introduction that looks at the intersections of poetry and the lyric essay.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2019
Creator: Carter, Justin
Item Type: Refine your search to only Thesis or Dissertation
open access

Building a Collaborative Smartphone Application for Blind and Low Vision Visitors at the Dallas Museum of Art

Description: The goal of my study is to develop a mobile application to enable all visitors, including blind and low-vision visitors, to autonomously gather and share information about interpretations of art and to have a fully independent museum-going experience. With an application, blind visitors have more access to opportunities and tools in the museum, which empowers their museum experience. My study used a qualitative, mixed-methods approach to research how blind and low vision museum visitors might i… more
Date: May 2019
Creator: Aljuidan, Hanan Abdulaziz M
Item Type: Refine your search to only Thesis or Dissertation
open access

The Civilian Conservation Corps in Big Bend National Park

Description: During the New Deal, the Civilian Conservation Corps (CCC) put young men to work in state and national parks across the United States. One of such parks, Big Bend National Park, is the focus of this study. The CCC had two camps within the park, one from 1934 to 1937 and another from 1940 to 1942. During their time in Big Bend, the CCC constructed many projects including a road, trails, cabins, and other various structures. The purpose of this study is to delineate the role of the CCC in creatin… more
Date: May 2019
Creator: Jackson, Kimberly
Item Type: Refine your search to only Thesis or Dissertation

Cold-Formed Steel Member Connections Using BAC Screw Fasteners

Description: In this project, the main research objective is intend to seek criteria for evaluating the capacity of BAC screw fasteners with mixed configuration of waterproof seal washer, sealer tape and different pre-drill holes to determine shear and tension strength values for the screws used in cold-formed steel connections. The thesis presents the design methods and test program conducted to investigate the behavior and strength of the screw connections in shear and tension test. Test results were comp… more
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Date: May 2019
Creator: Li, Xun
Item Type: Refine your search to only Thesis or Dissertation
open access

College and Career Readiness of Students with Autism

Description: With one in every 59 individuals now diagnosed with autism spectrum disorder (ASD), there is a significant increase in college enrollment for these students, yet, alarmingly, this population has the highest college dropout rate. Using Rawl's social justice theory as the frame, this qualitative study identified the perceptions of students with ASD, their college professors, and the director of the Office of Disability Accommodation (ODA). Perceptions were examined through open-ended surveys re… more
Date: May 2019
Creator: Stello, Christina N
Item Type: Refine your search to only Thesis or Dissertation
open access

Comparison and Genetic Analysis of Host Specificity in Cluster BD1 Bacteriophages infecting Streptomyces

Description: Bacteriophages are viruses that specifically infect bacteria. When a phage infects a bacterium, it attaches itself to the surface of the bacteria and injects its DNA into the intracellular space. The phage DNA hijacks the cellular machinery of the bacteria and forces it to produce phage proteins. Eventually, the bacteria cell bursts or lyses, releasing new phage. The bacteria act as a host for phage reproduction. The ability for a phage to infect multiple bacterial species is known as host rang… more
Date: May 2019
Creator: Klug, Hannah
Item Type: Refine your search to only Thesis or Dissertation

Complex-Restricted Repetitive Patterns of Vocal Behavior of Individuals with High Functioning Autism: An Innovative Intervention

Description: Repetitive verbal patterns of speech are a trait associated with high-functioning autism (HFA). For some, this higher-order restricted, repetitive behavior impedes learning, social opportunities, and access to work environments. Despite emerging motivation for establishing social relationships, some individuals with HFA lack the behavioral prerequisites to establish meaningful relationships. The purpose of this study is to demonstrate the effectiveness of teaching interaction to decrease hig… more
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Date: May 2019
Creator: Flatt, Kimberlee Kay
Item Type: Refine your search to only Thesis or Dissertation
open access

Computational and Experimental Studies of the Photoluminescence, Reactivity and Structural Properties of d10 and d8 Metal Complexes

Description: Computational chemistry has gained interest as a characterization tool to predict photoluminescence, reactivity and structural properties of organic and transition metal complexes. With the rise of methods including relativity, these studies have been expanded to the accurate modeling of luminescence spectra of complexes with considerable spin-orbit splitting due to heavy metal centers as well as the reaction pathways for these complexes to produce natural products such as hydrogen gas. These a… more
Date: May 2019
Creator: Otten, Brooke Michelle
Item Type: Refine your search to only Thesis or Dissertation
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