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An Exploration of the Titrating-Delay Match-to-Sample Procedure with Pigeons

Description: The delayed matching‐to‐sample (DMTS) procedure involves the insertion of a delay between the offset of a sample stimulus and the onset of an array of comparison stimuli; one of which is designated as the “correct” match for the sample on each trial. The procedure has served as the base preparation in which the effects of environmental variables on short‐term remembering and is, in many ways, responsible for a refined understanding of the phenomenon. Despite its utility, however, there are a fe… more
Date: December 2011
Creator: Friedel, Jonathan E.
Partner: UNT Libraries
open access

An Exploration of Altruistic Behavior of Substance-Abuse Facilities According to Their Ownership Status

Description: Using the 2009 National Survey of Substance Abuse Treatment Services (N-SSATS), this paper uses logistic regressions to explore the effect of facility ownership on a facility’s show of altruism. Facility’s show of altruism is operationalized as a facility offering free treatment to all its clients, free treatment to some of its clients, or a facility offering a sliding fee scale to its client base in order to absorb some of the cost of treatment based on a potential client's income. Region, re… more
Date: December 2011
Creator: Galanova, Yekaterina (Katherine) Yur'Yevna
Partner: UNT Libraries
open access

Development of Indium Oxide Nanowires as Efficient Gas Sensors

Description: Crystalline indium oxide nanowires were synthesized following optimization of growth parameters. Oxygen vacancies were found to impact the optical and electronic properties of the as-grown nanowires. Photoluminescence measurements showed a strong U.V emission peak at 3.18 eV and defect peaks in the visible region at 2.85 eV, 2.66 eV and 2.5 eV. The defect peaks are attributed to neutral and charged states of oxygen vacancies. Post-growth annealing in oxygen environment and passivation with sulp… more
Date: December 2011
Creator: Gali, Pradeep
Partner: UNT Libraries
open access

Energy Usage While Maintaining Thermal Comfort : A Case Study of a UNT Dormitory

Description: Campus dormitories for the University of North Texas house over 5500 students per year; each one of them requires certain comfortable living conditions while they live there. There is an inherit amount of money required in order to achieve minimal comfort levels; the cost is mostly natural gas for water and room heating and electricity for cooling, lighting and peripherals. The US Department of Energy has developed several programs to aid in performing energy simulations to help those interest… more
Date: December 2011
Creator: Gambrell, Dusten
Partner: UNT Libraries
open access

Biodiversity Loss, the Motivation Problem, and the Future of Conservation Education in the United States

Description: The purpose of this dissertation is to make sense of two sets of reactions. On the one hand, Americans can barely lift a finger to help threatened and endangered species while on the other, they routinely come to the aid of human victims of disaster. I argue that in contrast to cases of human tragedy, for the biodiversity crisis conservationists are faced not only with the familiar yet arduous task of motivating the American public to care for living other-than-humans, but they are also saddl… more
Date: December 2011
Creator: Grove-Fanning, William
Partner: UNT Libraries
open access

The Relationship of Force on Myosin Subfragment 2 Region to the Coiled-Coiled Region of the Myosin Dimer

Description: The stability of myosin subfragment 2 was analyzed using gravitational force spectroscopy. The region was found to destabilize under physiological force loads, indicating the possibility that subfragment 2 may uncoil to facilitate actin binding during muscle contraction. As a control, synthetic cofilaments were produced to discover if the observations in the single molecule assay were due to the lack of the stability provided by the thick filament. Statistically, there was no difference betwee… more
Date: December 2011
Creator: Hall, Nakiuda M.
Partner: UNT Libraries
open access

Monolith: A Piece for Midi Piano, Mixed Sextet, and Fixed Electronics

Description: Reference to a regular pulse is one of the most common ways of measuring time in music. As the basis for tempo, meter, subdivisions, and even formal symmetry, pulse, or the sonic articulation of regular units of time, is found throughout all levels of music. In this paper, I describe how I used a structure of twelve simultaneous pulses to compose "Monolith," a recent piece for MIDI piano, Pierrot ensemble, and fixed electronics. In the first chapter, I contextualize "Monolith" by briefly examin… more
Date: August 2017
Creator: Vaughn, Mark, 1987-
Partner: UNT Libraries
open access

Are Things Falling Apart Again? A Dialectical Analysis of Language Education Policy in Nigeria

Description: Today's globalized world presents challenges for formulating language education policies in multilingual countries, and postcolonial Nigeria presents a dramatic illustration because of ongoing colonial influences as well as neocolonial factors. This study focused on dialectical relations over time among languages in Nigeria's National Policy on Education (NPE), published in 1977, 1981, 1998, 2004, 2013, and 2014. The title of the study harks to Chinua Achebe's novel, Things Fall Apart, which d… more
Date: August 2019
Creator: Olaniyi, Adepeju Folasade
Partner: UNT Libraries
open access

Prophet Inequalities for Multivariate Random Variables with Cost for Observations

Description: In prophet problems, two players with different levels of information make decisions to optimize their return from an underlying optimal stopping problem. The player with more information is called the "prophet" while the player with less information is known as the "gambler." In this thesis, as in the majority of the literature on such problems, we assume that the prophet is omniscient, and the gambler does not know future outcomes when making his decisions. Certainly, the prophet will get a b… more
Date: August 2019
Creator: Brophy, Edmond M.
Partner: UNT Libraries
open access

Safe Routes to School Youth Voices

Description: Many communities are promoting physical activity and active transportation as ways to combat childhood obesity and change sedentary lifestyles of school-age children. Safe Routes to School Youth Voices is a mixed methods approach to understanding the experiences and perceptions of middle school students surrounding the use of active transportation. Student experiences are explored both independently and in comparison to parental perspectives of barriers to actives transportation. Data were coll… more
Date: August 2019
Creator: Wright, Patricia Ann
Partner: UNT Libraries

Ligand Effects in Gold(I) Acyclic Diaminocarbene Complexes and Their Influence on Regio- and Enantioselectivity of Homogeneous Gold(I) Catalysis

Description: This dissertation focuses on the computational investigation of gold(I) acyclic diaminocarbene (ADC) complexes and their application in homogeneous gold(I) catalysis. Chapter 2 is an in-depth computational investigation of the σ- and π-bonding interactions that make up the gold-carbene bond. Due to the inherent conformation flexibility of ADC ligands, distortions of the carbene plane can arise that disrupt orbital overlap between the lone pairs on the adjacent nitrogen atoms and the empty p-orb… more
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Date: August 2019
Creator: Ellison, Matthew Christopher
Partner: UNT Libraries
open access

Essential Competencies for Entry-Level Management Positions in the Food and Beverage Industry in Taiwan and Mainland China

Description: The purpose of this study was to identify the essential competencies for entry-level management positions in the food and beverage (F&B) industry based on the perspectives of Taiwanese industry professionals across three groups: work experience in Taiwan and/or mainland China, two F&B sectors (Hotel F&Bs and restaurants), and three management levels (first-line, middle, and top). A total of 515 Taiwanese F&B industry professionals participated in this study with 104 participants currently emplo… more
Date: August 2019
Creator: Huang, Tai-Yi
Partner: UNT Libraries

Choice Androgyny

Description: This work provides an alternative theory of gendered consumption that explains chronic and situational shifts in consumers' preferences for masculine, feminine, and androgynous choices, beyond the effects of gender identities.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 2019
Creator: Jones, Niusha
Partner: UNT Libraries
open access

A Grundgestalt Analysis of the Clarinet Trio and Clarinet Quintet by Johannes Brahms

Description: The Grundgestalt (Ger: 'basic shape') is a term coined by Arnold Schoenberg to describe the basis for coherence within a musical composition. Although neither precisely defined, nor adequately supported by examples from his literature, the Grundgestalt remains an important facet of Schoenbergian theory. Composed of several gestalten that occur repeatedly, Schoenberg's Grundgestalt functions as a germinating factor within a piece that allows its motivic, thematic, and rhythmic information to bec… more
Date: August 2019
Creator: McConnell, Michael (Woodwind instrument player)
Partner: UNT Libraries
open access

EverWind: Original Composition and Analytical Essay on the Role of Inspiration and Nature in Music

Description: This paper provides an overview of the inspiration, research, and creative process involved in the composition of EverWind for orchestra and electronics. EverWind is based on field recordings from the American Southwest. The composition uses pitch material derived from spectral analysis of the recordings, and it incorporates a fixed media element using the field recordings that are then electronically manipulated to various degrees; this fixed media element is played alongside the orchestra. Th… more
Date: August 2019
Creator: Gerard, Garrison
Partner: UNT Libraries
open access

Telemedicine in Schools: Exploring Parent Perceptions and Desires

Description: School-based health clinics are on the rise while telemedicine is increasingly used to provide communities access to health care. Incorporating the two together poses to create healthier school communities. Parker County Hospital District collaborated with Weatherford Independent School District (WISD) to implement the district's first telemedicine school-based health clinic. This project is in partnership with Parker County Hospital District to explore parent perceptions and desires of telemed… more
Date: August 2019
Creator: Smith, Bethany Noel
Partner: UNT Libraries
open access

Shifting Identities: A Qualitative Inquiry of Black Transgender Men's Experiences

Description: The purpose of this transcendental phenomenological study was to explore Black transgender men's experiences navigating systems of racism and transphobia. To this end, I utilized a critical race theory and intersectionality theory framework to answer the following question: What are Black transgender men's experiences with power, privilege, and oppression? The ten Black transgender men and transmasculine people who participated in this study provided detailed and moving accounts of their expe… more
Date: August 2019
Creator: White, Mickey E.
Partner: UNT Libraries

SurfKE: A Graph-Based Feature Learning Framework for Keyphrase Extraction

Description: Current unsupervised approaches for keyphrase extraction compute a single importance score for each candidate word by considering the number and quality of its associated words in the graph and they are not flexible enough to incorporate multiple types of information. For instance, nodes in a network may exhibit diverse connectivity patterns which are not captured by the graph-based ranking methods. To address this, we present a new approach to keyphrase extraction that represents the document … more
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Date: August 2019
Creator: Florescu, Corina Andreea
Partner: UNT Libraries

The Impact of Property Tax Exemptions on the Fiscal Behavior of Cities: A Longitudinal Analysis of 41 Texas Cities

Description: As a form of tax and expenditure limitations, property tax exemptions result in an utility gap between two groups of population residing in the same community: free-riders who are paying less than they receive and contributors who are paying more than they receive. This utility gap is problematic to municipalities because contributors may exit the city as this gap becomes wider. How do municipalities respond to the increasing amount of property tax exemptions? Using 41 Texas cities data from 20… more
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Date: August 2019
Creator: Sun, Jingran
Partner: UNT Libraries

Three Essays on Artificial Intelligence Adoption and Use

Description: Artificial intelligence (AI) is quickly transforming business operations and society, as AI capabilities are incorporated into applications ranging from mobile personal assistants to self-driving cars. The potentially disruptive nature of AI calls for an extensive investigation into all aspects of AI-human interactions at individual, group, organizational and market levels. However, there is paucity of academic information systems (IS) research in this area that goes beyond the development and … more
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Date: August 2019
Creator: Nguyen, Quynh
Partner: UNT Libraries
open access

Transcription and Critical Edition of Carl Nielsen's Songs, Op. 4 and 10 for Flute and Piano

Description: Widely regarded as one of the most significant composers of the late nineteenth and early twentieth centuries, Carl Nielsen and his music have come to define the early twentieth-century musical traditions of Denmark. His original songs for voice and piano are often revered as popular folk tunes and contributed to his status as a national icon. My dissertation explores Nielsen's vocal repertoire through a multipart project that includes transcribing and editing eleven of Nielsen's early songs fr… more
Date: August 2019
Creator: Pillman, Laura, 1990-
Partner: UNT Libraries

Processing-Structure-Property Relationships of Reactive Spark Plasma Sintered Boron Carbide-Titanium Diboride Composites

Description: Sintering parameter effects on the microstructure of boron carbide and boron carbide/titanium diboride composites are investigated. The resulting microstructure and composition are characterized by scanning electron microscopy (SEM), x-ray microscopy (XRM) and x-ray diffraction (XRD). Starting powder size distribution effects on microstructure are present and effect the mechanical properties. Reactive spark plasma sintering introduces boron nitride (BN) intergranular films (IGF's) and their eff… more
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Date: August 2019
Creator: Lide, Hunter
Partner: UNT Libraries
open access

Doing Our Work Better, Together: An Application of Relational Coordination Theory to Explore and Shape Excellence in Trauma Care

Description: I conducted a mixed-methods collaborative ethnography using the lens of relational coordination theory. This included a qualitative survey using an established tool to analyze the relational dimensions of multidisciplinary teamwork, participant observation, interviews, and narrative surveys. Findings were presented to clinicians in working groups for further interpretation and to facilitate co-creation of targeted interventions designed to improve team relationships and performance. I engaged a… more
Date: August 2019
Creator: Purdy, Eve Isabelle
Partner: UNT Libraries
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