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Earth Abundant Transition Metal Catalysts for Activation and Functionalization of Light Hydrocarbons

Description: Light hydrocarbons activations, functionalization, and reactions have been a subjects of catalysis research for decades but dominated by the rarer and more expensive noble metals. Switching over to using the more earth abundant third row transition metals could be more economical and less toxic but come with their own challenges. Their use as catalysts with light hydrocarbons could be employed better utilize and more efficiently use our hydrocarbon resources that the world still depends on.
Date: August 2022
Creator: Grumbles, William M
Partner: UNT Libraries

Processing-Structure-Property Correlation for Additively Manufactured Metastable High Entropy Alloy

Description: In the present study both fusion based - laser powder bed fusion (LPBF), and solid state - additive friction stir deposition (AFSD) additive manufacturing processes were employed for the manufacturing of a metastable high entropy alloy (HEA), Fe40Mn20Co20Cr15Si5 (CS-HEA). A processing window was developed for the LPBF and AFSD processings of CS-HEA. In case of LPBF, formation of solidification related defects such as lack of fusion pores (for energy density ≤ 31.24 J/mm3) and keyhole pores (for… more
Date: August 2022
Creator: Agrawal, Priyanshi
Partner: UNT Libraries
open access

The Emergence of All-State Vocal Jazz Ensembles in the United States from 1978 to 2022

Description: Since the creation of the first all-state vocal jazz ensemble in 1978, similar ensembles have been established in roughly half of the United States. This paper contains historical summaries of the creation of all-state vocal jazz ensembles in nineteen of those states, primarily as recounted via interviews with those ensembles' founders. Each semi-structured interview was conducted over video conference or phone and lasted approximately one hour; resulting interview data was analyzed using quali… more
Date: August 2022
Creator: Thomas, Tyler
Partner: UNT Libraries

The Informational Effects of Non-Deal Roadshows

Description: Non-deal roadshows (NDR) are privately held one-on-one meetings between the buy-side of financial institutions and firm management. Using a novel dataset of these meetings, I examine the effects that NDR meetings have on the outcomes of two important corporate events: seasoned equity offerings (SEOs) and mergers and acquisitions (M&As). I also study the potential implications of the information content in NDRs on the behavior of stock returns following earnings announcements, which has been th… more
Date: August 2022
Creator: Howell, Dylan A.
Partner: UNT Libraries

Factors Influencing Continued Usage of Telemedicine Applications

Description: This study addresses the antecedents of individuals' disposition to use telemedicine applications, as well as the antecedents of their usage to provide insight into creating sustained usage over time. The theoretical framework of this research is Bhattacherjee's expectation-confirmation IS continuance model. By combining a series of key factors which may influence the initial and continued usage of telemedicine applications with key constructs of Bhattacherjee's IS continuance model, this study… more
This item is restricted from view until September 1, 2024.
Date: August 2022
Creator: Liu, Xiaoyan
Partner: UNT Libraries
open access

On the Descriptive Complexity and Ramsey Measure of Sets of Oracles Separating Common Complexity Classes

Description: As soon as Bennett and Gill first demonstrated that, relative to a randomly chosen oracle, P is not equal to NP with probability 1, the random oracle hypothesis began piquing the interest of mathematicians and computer scientists. This was quickly disproven in several ways, most famously in 1992 with the result that IP equals PSPACE, in spite of the classes being shown unequal with probability 1. Here, we propose what could be considered strengthening of the random oracle hypothesis, using a st… more
Date: August 2022
Creator: Creiner, Alex
Partner: UNT Libraries
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

Optimizing Value Co-Creation in Education Supply Chains: An Evaluation of Determinants and Resiliency in Service Systems

Description: Services and service-based business are a major part of any economy. However, service-based supply chains require a greater level of interaction between provider and consumer than the traditional manufacturing or product-based supply chain. Therefore, they require optimization and resiliency models that acknowledge the constraints and goals unique to service-based industries. Value co-creation and service-dominant logistics (SDL) are relatively new to operations research. Existing literature in… more
This item is restricted from view until September 1, 2027.
Date: August 2022
Creator: Smith, Justin Thomas
Partner: UNT Libraries
open access

Scaling, Power-Law First Return Times, and Non-Ergodicity

Description: This dissertation is a collection of papers on anomalous phenomena in physics, biology, and sociology. These phenomena are primarily analyzed in terms of their temporal and spatiotemporal statistical properties. The analysis is based on both numerical simulations and, in some cases, real-world physiological and sociological data. The primary methods of analysis are diffusion entropy analysis, power spectral analysis, multifractal analysis, and survival (or waiting-time) analysis.
Date: August 2022
Creator: Lambert, David Robert
Partner: UNT Libraries
open access

Trauma, Posttraumatic Stress Disorder Symptoms, and COVID-19 Impacts among South Asians

Description: South Asians are the third fastest growing racial/ethnic minority group in the United States with distinct cultural characteristics. The coronavirus disease 2019 (COVID-19) pandemic has disproportionately impacted racial and ethnic minorities in the U.S, including South Asians, across several life domains: work, home life/education, social activities, economic, emotional and physical health, infection, quarantine, and positive changes. The COVID-19 pandemic may have critically impacted South As… more
Date: August 2022
Creator: Rafiuddin, Hanan S.
Partner: UNT Libraries
open access

Pianistic Problems in the Fifth Sonata of Scriabin

Description: This paper discusses the pianist problems in the fifth sonata created by Alexander Nikolayevich Scriabin and provides historical background to the works of the composer before analyzing his work.
Date: August 1972
Creator: Smith, Jennie
Partner: UNT Libraries
open access

Some Acoustical Considerations in the Design of the Contemporary Organ Case

Description: This paper discusses the historical roots, placement, shape, and materials and methods in the construction of the contemporary organ case. James W. Kibbie explores the acoustical considerations of its design and how these are reflected in the finished product.
Date: August 1972
Creator: Kibbie, James W.
Partner: UNT Libraries
open access

A Survey of New Extensions of Clarinet Technique as They Appear in Four Published Works

Description: This paper explores the new extensions of clarinet technique in four published works, discussing the percussive effects, melodic effects, and multiple sounds that can be produced through these extensions. David R. Widder also explores the history of innovational solo clarinet works.
Date: August 1972
Creator: Widder, David R.
Partner: UNT Libraries
open access

A Comparison of Editions of Carl Maria von Weber’s Grand Duo Concertant, Op. 48, for Clarinet and Piano, With the Composer’s Autograph Score

Description: This paper compares various editions of Carl Maria Von Weber's Grand Duo Concertant, Op. 48, with the composer's original autograph score. Catherine E. Wood discusses how well these editions retained the composer's intentions, and which edition is the most accurate.
Date: August 1972
Creator: Wood, Catherine E.
Partner: UNT Libraries
open access

A Stylistic Evaluation of Aaron Copland’s Piano Variations

Description: This paper evaluates the style of American composer Aaron Copland's Piano Variations. Philip Carey Jones discusses its position as a unique piece in twentieth-century piano literature and compares his work to that of other composers.
Date: August 1972
Creator: Jones, Philip Carey
Partner: UNT Libraries
open access

Some Aspects of Unity in Beethoven’s Piano Sonata Op. 81A

Description: This paper highlights aspects of unity in Ludwig van Beethoven's Piano Sonata Op. 81A. Jannis M. Peterson provides historical background to the work, identifies the problem of unity, and analyzes the piece.
Date: August 1973
Creator: Peterson, Jannis M.
Partner: UNT Libraries
open access

The Physical Development of the Bassoon

Description: This paper explores the history of the bassoon and its construction. Bob A. Sparks analyzes its evolution over time, from the versions created in France and Germany to the bassoon of the twentieth century.
Date: August 1973
Creator: Sparks, Bob A.
Partner: UNT Libraries
open access

The Influence of the Commedia Dell’ Arte on Opera Buffa

Description: This paper explores the connection between the Commedia dell'arte and the opera buffa genre and asserts that performers should be aware of this connection. John Arden Hopkin explores the history of the Commedia dell'arte and the rise of opera buffa.
Date: August 1974
Creator: Hopkin, John Arden
Partner: UNT Libraries
open access

Unusual Double-Reed Bass Instruments: A Historical Survey

Description: Thesis provides a historical survey of unusual double-reed bass instruments. Carol E. North provides a historical overview before separating the instruments into those with a cylindrical bore and those with a conical bore and describing each in turn.
Date: August 1974
Creator: North, Carol E.
Partner: UNT Libraries
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