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open access

The Missing Piece of the Puzzle: A Study of How First-Generation Latino Male College Students Acquire Cultural Capital

Description: This study aimed to take asset-based approach and identify Latino male students who were persisting in college, and to identify what strategies made them successful. This qualitative study consulted Tinto's revised student departure model, Bourdieu's theory of cultural capital, as well as Yosso's theory of community cultural wealth. A phenomenological design was utilized to identify the shared experience of first-generation Latino male college students who had persisted in college and maintai… more
Date: December 2019
Creator: Portillo, Pedro Atilano-Molina
open access

A Modern Pedagogical Method for Developing Valve Technique on Independent Double Valve Bass Trombone

Description: The modern bass trombone has undergone many changes in design since the 1960s and a student beginning on or switching to bass trombone today needs pedagogical material that methodically addresses the many valve combinations available on an independent double valve bass trombone. The existing books for bass trombone contain useful exercises, but none of the currently available books address all the valve combinations and patterns that are helpful for developing proficient valve technique on bass… more
Date: December 2019
Creator: Sharpe, Chris M.
open access

Mothering while Brown: Latina Borderland Mothers' Experiences of Epistemic Injustice

Description: Anti-immigrant rhetoric undermines Latinx parents' epistemic legitimacy as producers of valued parental knowledge, irrespective of immigrant status. Little is known about the epistemic harm to Latina mothers who must negotiate their maternal scripts against the backdrop of a parenting discourse steeped in deficit thinking. This study used testimonio to explore the experiences of Latina mothers of young children living in the borderlands of South Texas via a Chicana/Latina feminist epistemologic… more
Date: December 2019
Creator: Verdin, Azucena

Nano-Manufacturing of Catalytic Amorphous Alloys

Description: In this dissertation, nano-manufacturing of amorphous alloys for electro-catalytic applications is reported and the role of chemistry and active surface area on catalytic behavior is discussed. The catalytic activity of recently developed platinum and palladium-based metallic glasses was studied using cyclic voltammetry and localized electrochemical techniques. The synergistic effect between platinum and palladium was shown for amorphous alloys containing both these elements. The mechanism for … more
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Date: December 2019
Creator: Hasannaeimi, Vahid
open access

Optical Brain Imaging of Motor Cortex to Decode Movement Direction using Cross-Correlation Analysis

Description: The goal of this study is to determine the intentional movement direction based on the neural signals recorded from the motor cortex using optical brain imaging techniques. Towards this goal, we developed a cross-correlation analysis technique to determine the movement direction from the hemodynamic signals recorded from the motor cortex. Healthy human subjects were asked to perform a two-dimensional hand movement in two orthogonal directions while the hemodynamic signals were recorded from t… more
Date: December 2019
Creator: Lebel, Cynthia
open access

Optimization of RSA Cryptography for FPGA and ASIC Applications

Description: RSA cryptography is one of the most widely used cryptosystems in the world. FPGA/ASIC implementations for the classic RSA cryptosystem have high resource utilization due to the use of the Extended Euclid's algorithm for MOD inverse generation, the MOD exponent operation for encryption and decryption, and through non finite-field arithmetic. This thesis translates the RSA cryptosystem into the finite-field domain of arithmetic which greatly increases the range of encryption and decryption keys a… more
Date: December 2019
Creator: Simpson, Zachary P
open access

Origins of Roman Infantry Equipment: Innovation and Celtic Influence

Description: The Romans were known for taking technology and advancements from other peoples they encountered and making them their own. This pattern holds true in military affairs; indeed, little of the Roman military was indigenously developed. This dissertation looks at the origins of the Roman's mainline weapons systems from the beginning of Roman Republic expansion in the fourth century BC to the abandonment of Western-style armaments in favor of Eastern style ones beginning in the late-third century A… more
Date: December 2019
Creator: Martin, Ian A.
open access

Our Own and the Others: What Happens to Perceptions of Immigrant Threat when Value Priorities Collide?

Description: With immigration controversies increasingly found at the forefront of the European public arena, understanding the social and cultural forces driving negative perceptions of immigrants becomes a pressing task of academic scholarship. Situated within the broader theoretical framework of group-conflict theories, human values theory and social identity theory encourage different interpretations of how our interest to the welfare of the people closest to us (benevolence) and the broader human commu… more
Date: December 2019
Creator: Grigoropoulou, Nikolitsa

PAOFLOW-Aided Computational Materials Design

Description: Functional materials are essential to human welfare and to provide foundations for emerging industries. As an alternative route to experimental materials discovery, computational materials designs are playing an increasingly significant role in the whole discovery process. In this work, we use an in-house developed python utility: PAOFLOW, which generates finite basis Hamiltonians from the projection of first principles plane-wave pseudopotential wavefunctions on pseudo atomic orbitals(PAO) for… more
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Date: December 2019
Creator: Wang, Haihang
open access

Participatory Management and Absenteeism and Turnover of Nursing Assistants in Nursing Homes

Description: Nursing assistants (NAs) provide the majority of daily care to older adults in nursing homes (NHs); NAs working in NHs are the focus of this study. This study examined the influence of participatory management (the independent variable), and mediating variables, burnout – measured as emotional exhaustion, task performance, and affective organizational commitment, on NA withdrawal behaviors (the dependent variables absenteeism and turnover). Most of the data come from a 113-item self-administe… more
Date: December 2019
Creator: Hughes, Susan D.
open access

Perceptions of Principals Learning to Lead Professional Learning Communities in a Fast-Growth District

Description: The role of the principal has become increasingly complex and challenging. Recent emphasis has been placed on the role of principals as leaders who can build a culture of learning in schools to close the student achievement gap. Outside factors such as fast-growth in Texas have caused schools to change and grow quickly, which increases the learning demands placed on principals as they seek to develop the knowledge and skills needed for effective leadership. Developing and sustaining a professio… more
Date: December 2019
Creator: Rapp, Kellie C
open access

Perceptions of Public Health Professionals and Emergency Managers: Using the Institutional Collective Action Framework to Better Understand Coordination during Health Crisis

Description: The objective of this dissertation is to test the Institutional Collective Action framework and examine the governance arrangements during health emergency. Basically, the dissertation argues that due to collaborative risks, transaction costs, barriers to collective action, governance arrangement provides avenues for action and a force for driving coordination across jurisdictional boundaries. The dissertation adopts two studies to investigate the governance arrangements represented by lead age… more
Date: December 2019
Creator: Soujaa, Ismail
open access

A Performance-and-Analysis Approach to a Cadential Ambiguity: Chopin's Piano Sonata No. 2 in B-flat minor, Op. 35, First Movement

Description: Pianists often have trouble in determining where a phrase ends, or in other words, cadence identification. This is especially true of certain cadences that can be considered either as half cadences or authentic cadences. This analytically ambiguous cadential point can result in different performance decisions, so pianists should make informed decisions about what kind of cadence it is. This study aims to investigate such cadential ambiguity shown at points of phrase boundaries by focusing on Ch… more
Date: December 2019
Creator: Kim, Yereum

A Performance and Security Analysis of Elliptic Curve Cryptography Based Real-Time Media Encryption

Description: This dissertation emphasizes the security aspects of real-time media. The problems of existing real-time media protections are identified in this research, and viable solutions are proposed. First, the security of real-time media depends on the Secure Real-time Transport Protocol (SRTP) mechanism. We identified drawbacks of the existing SRTP Systems, which use symmetric key encryption schemes, which can be exploited by attackers. Elliptic Curve Cryptography (ECC), an asymmetric key cryptography… more
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Date: December 2019
Creator: Sen, Nilanjan
open access

A Performance Guide to David Kechley's "In the Dragon's Garden" with an Investigation of the Saxophone-Guitar Duo Genre

Description: American composer David Kechley was profoundly impacted by a 1990 trip to the Ryoan-ji Temple in Kyoto, Japan. The composer describes the finely raked, small white stones in the midst of fifteen large rocks in the Japanese Zen garden as "planned randomness." Kechley's inaugural composition for saxophone-guitar duo, In the Dragon's Garden, reflects his experience at the Ryoan-ji Temple. The use of minimalistic compositional techniques without literal repetition in the work represents a departure… more
Date: December 2019
Creator: Pierce, Justin

Phenotype Analysis of the CISD Gene Family Relative to Mitochondrial Function in Caenorhabditis elegans

Description: NEET proteins belong to a unique class of [2Fe-2S] cluster proteins that have been shown to participate in various biological processes such as regulating iron, reactive oxygen species and apoptosis within the cell and are localized to the mitochondria. Disruption of the mitochondrial NEET proteins are associated with different human diseases such as obesity, neurodegeneration, cancer and diabetes. In humans, a missense mutation in the CISD2 gene results in a heritable multisystem disorder term… more
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Date: December 2019
Creator: Mungwira, Chipo F
open access

Political Humility: Engaging Others with Different Political Perspectives

Description: The purpose of this study was to explore theorized predictors, intrapersonal effects, and interpersonal effects of political humility. Participants (N = 469) were adults recruited from Amazon's Mechanical Turk and undergraduate students who completed a series of measures online. First, I found that political humility is (a) positively associated with openness to experience, (b) negatively associated with political commitment, and (c) not significantly related to political diversity in one's soc… more
Date: December 2019
Creator: Hodge, Adam S.
open access

Preservice Teachers' Images of Female Scientists, Male Scientists, and Teacher as Scientists: An Analysis of Stereotypical Indicators

Description: The role of depicting and analysing scientist images to reveal gender-science stereotypes among students in K-12 classrooms is an ongoing research trend in science education literature. The study reported here carries on this research trend but focuses on preservice elementary teachers' images of scientists. The purpose of this study was to investigate the relationship between preservice elementary teachers' gender and ethnicity and their drawn images of a female scientist, male scientist, and … more
Date: December 2019
Creator: Rendon, Netassha M
open access

Press Freedom in Saudi Arabia War Reporting: A Case Study of the Gulf and Yemen Wars

Description: This study examined press freedom in Saudi Arabia coverage in two study periods, which are the Gulf and Yemen wars. Six Saudi newspapers, which represent Saudi regions, have been content analyzed. They are: Al Riyadh, Al Yaum, Al Nadwah, Mecca, Okaz, and Al Jazirah. The major questions are: What are the most salient issues Saudi newspapers dealt with in their editorials during the study period? What are the differences between the two periods of study? And what are the differences between the e… more
Date: December 2019
Creator: Huraysi, Mohammed

The Rise and Fall of the Greenback Party in Texas: Economic Change and Political Dissent in the Post-Civil War Era

Description: In 1873, a financial crisis plunged the United States into a deep economic depression that exacerbated a number of post-war economic issues. By the late 1870s, political dissent centered primarily on financial issues merged into the Greenback movement, which represented a loose coalition of reformers calling for economic relief based on the expanded use of greenbacks (paper currency issued by the United States Treasury during the Civil War). The Greenback Party emerged as a direct response to f… more
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Date: December 2019
Creator: Sinclair, Cameron L.

"Running from My Youth": Essays

Description: Running From My Youth: Essays is a collection of nonfiction essays that explore important moments and experiences from the narrator's youth, and how he has addressed and remembered them in the years since. Some of the essays explore the narrator's time as a distance-runner, while others explore the awkwardness and discomfort onset by religion and nudity.
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Date: December 2019
Creator: Jernigan, Hunter Jason Alexander
open access

Semiconducting Aromatic Boron Carbide Films for Neutron Detection and Photovoltaic Applications

Description: Semiconducting aromatic-boron carbide composite/alloyed films formed by plasma enhanced chemical vapor deposition from carborane and aromatic precursors have been demonstrated to be excellent detectors for thermal neutrons because of the large 10B cross section. The electronic properties of these films derived from XPS show that the properties of boron carbide can be tuned by co-deposition of aromatic compounds and carborane. Aromatic doping results in narrower indirect band gaps (1.1 - 1.7 eV … more
Date: December 2019
Creator: Oyelade, Adeola O
open access

A Shaping Procedure for Introducing Horses to Clipping

Description: The purpose of the current study is to evaluate a procedure that can be used to introduce horses to clipping. Negative reinforcement was used in a shaping paradigm. Shaping steps were conducted by the handler, starting with touching the horse with the hand, then touching the horse with the clippers while they are off, culminating with touching the horse with the clippers while they are on. When a horse broke contact with either the hand or the clippers, the hand or the clippers were held at tha… more
Date: December 2019
Creator: Hardaway, Alison K
open access

Shepherding Network Security Protocols as They Transition to New Atmospheres: A New Paradigm in Network Protocol Analysis

Description: The solutions presented in this dissertation describe a new paradigm in which we shepherd these network security protocols through atmosphere transitions, offering new ways to analyze and monitor the state of the protocol. The approach involves identifying a protocols transitional weaknesses through adaption of formal models, measuring the weakness as it exists in the wild by statically analyzing applications, and show how to use network traffic analysis to monitor protocol implementations goin… more
Date: December 2019
Creator: Talkington, Gregory Joshua
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