Digital Commons Network^™

Black Minds Matter: A Phenomenological Inquiry Examining The Prevalence Of Racial Trauma Among Black Doctoral Students, Jazmyne Markeeva Peters

Electronic Theses and Dissertations

Systemic and institutionalized racism is endemic to life in the United States and contributes to the daily marginalization of Black people. While the negative psychological and physiological effects of racism have been well-documented, the notion that racism can be experienced as a trauma is a newer theory. Racial trauma has been understudied and underappreciated, though it is a theory that clinicians should incorporate when working with Black clients and other clients of color. Exploring the ways in which Black doctoral students attending a predominantly White institution (PWI) have experienced racism is an essential contribution to the existing racial trauma literature. …

Experimental Investigation Of Low-Voltage Silicon Carbide (Sic) Semiconductor Devices For Power Conversion Applications, Saleh Salem H. Alharbi

Electronic Theses and Dissertations

Enhancing the performance and efficiency of power converter systems requires fast-switching power devices with considerably low switching and conduction losses. Silicon (Si) semiconductor devices are the essential components in electronic converter designs, and their behaviors and switching characteristics determine the system’s overall performance and efficiency. These conventional Si devices are nearing to hit their physical and operational limits in meeting power converter requirements with respect to high temperature and large voltage conditions. However, silicon carbide (SiC) power devices enable greater converter efficiency and better power density, particularly under hard switching frequencies and high output voltages due to their outstanding material …

U.S. Democratization In Post-Cold War Russia: A Critique, Franklin T. Hughes

Electronic Theses and Dissertations

States are path dependent entities that deviate solely in the face of catastrophic failures in the pursuit of axiomatic ends by conventional means. The inertia of bureaucratic institutions, a foreign policy consensus within a self-reproducing elite of experts, the self-interest of political elites and a sense of “national self” or identity lead states to understand themselves in light of a history and a relative level of status on the world stage. Since the end World War II, the U.S. has a certain path that places the spread of democracy and laissez-faire capitalism extremely important if not vital foreign policy goals. …

Automated Change Detection In Privacy Policies, Andrick Adhikari

Electronic Theses and Dissertations

Privacy policies notify Internet users about the privacy practices of websites, mobile apps, and other products and services. However, users rarely read them and struggle to understand their contents. Also, the entities that provide these policies are sometimes unmotivated to make them comprehensible. Due to the complicated nature of these documents, it gets even harder for users to understand and take note of any changes of interest or concern when these policies are changed or revised.

With recent development of machine learning and natural language processing, tools that can automatically annotate sentences of policies have been developed. These annotations can …

Instrument And Application Development In Saturation Recovery And Rapid Scan Electron Paramagnetic Resonance, Joseph E. Mcpeak

Electronic Theses and Dissertations

Enhanced signal sensitivity by the use of Rapid Scan (RS) electron paramagnetic resonance (EPR), a technique that allows for much faster magnetic field scans than traditional field-swept techniques, has facilitated improved data acquisition for many types of samples. For example, irradiated fingernails for radiation dosimetry have been studied using RS-EPR, which resulted in substantial decreases in detection limits. Samarium-mediated reduction mechanisms in organic synthesis have been investigated by RS-EPR providing evidence for a radical intermediate. Spectra of organic radicals exhibiting both narrow lines and closely spaced hyperfine interactions have been recorded via RS-EPR. Well-resolved spectra can be recorded at a …

Characterization Of The Dimerization And Salt Dependent Aggregation Of The Als-Linked Protein Tdp-43, Elizabeth Ehrhardt

Electronic Theses and Dissertations

Trans-active response (TAR) DNA-binding protein 43 (TDP-43) is essential for RNA processing but can also form toxic cytoplasmic inclusions in neurons of patients with amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). RNA-binding has been shown to have the potential to decrease or inhibit the aggregation of TDP-43, indicating that supplying RNA therapeutics may be a solution to treat these neurodegenerative disorders. However, the mechanism of aggregation, transitioning from TDP-43’s native dimeric state to small oligomers to toxic aggregates, is still relatively unknown. This needs to be established before determining how to target and disrupt this aggregation. Using GFP-TDP-43, …

Caballerismo In Latinx Men In Higher Education, Victor Carrasco

Electronic Theses and Dissertations

Latinx men continue to be marginalized in higher education, and more research is needed to understand how to retain them using anti-deficit frameworks (Cook et al., 2012). Studies have investigated caballerismo as a protective factor for LatinX men. Caballerismo is defined by egalitarian beliefs, affiliation, positive family relationships, and empathy (Arciniega et al., 2008; Neff, 2001). Despite its promise as an anti-deficit framework, little is known about how caballerismo informs Latino students’ experiences in higher education. Therefore, this study addresses the following research questions: a) How does caballerismo manifest in Latinx men in higher education, b) how does caballerismo intersect …

Development Towards An Ethylene Sensing Artificial Metalloenzyme, Mitchell Lee Ellinwood

Electronic Theses and Dissertations

Ethylene (ethene) is the essential ripening hormone for climacteric plants, and consequently its detection and quantification is of considerable interest to the horticulture industry. Its detection however is a non-trivial pursuit, traditionally requiring expensive and inaccessible instrumentation that fail to provide in vivo information about ethylene. A ruthenium based fluorescent probe for the selective detection of ethylene has recently been developed, and it was envisioned that this probe could be made biocompatible by encasing it within a protein scaffold making it an artificial metalloenzyme. To this end biotinylated N-heterocyclic carbenes (NHCs) were synthesized, which can be appended onto the ruthenium …

How Parents, Teachers, Psychologists, And Educational Environments Influence Developmental Transitions Of Preadolescent Twice-Exceptional Students, Karen B. Arnstein

Electronic Theses and Dissertations

The purpose of this collective case study was to examine the perceived developmental transitions of preadolescent, twice-exceptional students to understand both the supports and barriers from the perspective of parents, teachers, and psychologists. The case for this study, located in a western U.S. state, was a private school educating twice-exceptional students. The research questions guiding the study included the following: How do parents perceive growth in both academic and psychosocial development? How do educators perceive growth in both academic and psychosocial development? What are the supports that promote successful developmental transitions? What are the barriers that inhibit successful developmental transitions? …

Is The Reliability Of Objective Originality Scores Confounded By Elaboration?, Shannon Marie Maio

Electronic Theses and Dissertations

The increased use of text-mining models as a scoring mechanism for divergent thinking (DT) tasks has sparked concerns about the ways in which automated Originality scores may be influenced by other dimensions of DT, especially Elaboration. The debate centers around the question of whether too much variance in automated Originality scores is accounted for by the number of words a participant uses in a response (i.e., Elaboration), and, thus, how the influence of Elaboration can affect the reliability of Originality scores. Here, a partial correlation analysis, in conjunction with text-mining and psychometric modeling, is conducted to test the degree to …

Measuring The Connective Action Of Black Lives Matter Activists: A Psychometric Investigation Into Twitter Data, Paige Alfonzo

Electronic Theses and Dissertations

Many protest movements from the last twenty-first century have become increasingly networked and personalized. Several scholars have tapped into this change coining terms such as participatory action, digitally mediated action, computer-mediated communication, issue-based organization, and what I focus on in this project, connective action. Building on the ideas percolating across the literary landscape at the time, Bennett and Segerberg (2012) introduced the logic of connective action based on emergent characteristics they observed in post-2010 large-scale social movements. Both the logic of connective action and related work have become deeply ingrained in today's social movement scholarship. As such, I felt it …

Real-Time Detection Of Demand Manipulation Attacks On A Power Grid, Srinidhi Madabhushi

Electronic Theses and Dissertations

An increased usage in IoT devices across the globe has posed a threat to the power grid. When an attacker has access to multiple IoT devices within the same geographical location, they can possibly disrupt the power grid by regulating a botnet of high-wattage IoT devices. Based on the time and situation of the attack, an adversary needs access to a fixed number of IoT devices to synchronously switch on/off all of them, resulting in an imbalance between the supply and demand. When the frequency of the power generators drops below a threshold value, it can lead to the generators …

Photographs In My Mind, Through Darkness And In Light: An Auto-Criticism Of A University Teacher, Melanie Renee Witt

Electronic Theses and Dissertations

This dissertation is an auto-criticism, a new qualitative inquiry founded in educational criticism and arts-based research, which describes and analyzes my lived experience as a female university teacher. The purpose of this study is to describe, interpret, evaluate and thematize my experiences with professional stress, pregnancy loss, and self-care. Secondly, it illuminates auto-criticism as a methodology with potential contributions to qualitative research and higher education.

Personal documents, internal artifacts, and external artifacts generated during a challenging period of my life as a university teacher are used as data. Language and photography combine to story my lived experiences and findings.

This …

Comprehensive Research Synthesis: An Approach To Mixed Methods Research Syntheses, Lilian Linialy Chimuma

Electronic Theses and Dissertations

Mixed methods research synthesis (MMRS) is an emerging application of both mixed-methods research (MMR) and review research. MMRS promises to comprehensively address intricate contemporary research and evaluation questions given diverse evidence sources (across quantitative, qualitative, and MMR primary studies). The significance of concurrently addressing methodological issues for new research developments is widely noted in the literature. Current efforts attempt to streamline methodological practices along with application of the MMRS approach. Researchers have proposed conceptual frameworks to guide the application and practice of MMRS studies. Despite these efforts, complications and disagreements persist. In response to these concerns, this study developed a …

A Phenomenological Study Of The Lived Experiences Of Counselors In Training When Discussing The Existential Factors Of Death, Isolation, Freedom, And Meaning In Life With Their Clients, Sabina Musliu

Electronic Theses and Dissertations

Grounded in the theoretical framework of existential therapy, this study aimed to uncover the lived experiences of counselors in training when addressing existential factors of death, isolation, freedom, and meaning in life with their clients. To have a better understanding of this phenomenon and address the research questions, data was primarily collected via semi-structured interviews. The obtained data was analyzed using an interpretative phenomenological analysis (IPA). The data analysis process revealed six superordinate themes from the participants’ experiences: the emotional experience in the session and during the interview; transference/ countertransference; perspective on existential factors; factors that influenced counseling effectiveness in …

Power System Frequency Control And Stability Analysis With Increasing Renewable Energy Penetration Level, Weihang Yan

Electronic Theses and Dissertations

With the ever-increasing penetration level of renewable energy generation units and the replacement of traditional synchronous generators, the issues associated with the deteriorated performance of power system frequency regulation and potential grid frequency instability become more significant. In this dissertation, the inertial control algorithms are investigated and analyzed for power electronics converter in a renewable energy generation unit. The concept and design of Virtual Synchronous Generator are comprehensively discussed, such that the small-signal stability and frequency stability of power systems with high renewable energy penetration level can be enhanced. Moreover, both nonlinear dynamic model and small-signal linearization of Virtual Synchronous …

The Experiences Of Ncaa Student-Athletes With An Eating Disorder Or Disordered Eating, Rachel E. Taylor

Electronic Theses and Dissertations

The purpose of this study was to explore the experiences of student-athletes who had an eating disorder or disordered eating (ED/DE) while competing for the National Collegiate Athletic Association (NCAA). Integrating criticism and connoisseurship and critical evocative portraiture, four post-collegiate women who participated in cross country and track, who were either clinically diagnosed with an ED/DE or who self-diagnosed, participated in two interviews to describe their experiences with and the impact of ED/DE on their athletic pursuits, academic pursuits, as well as their relationships with coaches, teammates, and family. The analysis of these interviews showed the complexity of this topic. …

Human Genetics, Psychotropic Drugs, And Acts Of Violence, Selma Jolanda Eikelenboom-Schieveld

Electronic Theses and Dissertations

From the start of the use of psychoactive prescription medications in the 1950s, physicians reported paradoxical adverse reactions, ranging from newly developing depressions to an increase in existing mood disorders, and extremely violent and bizarre acts of suicide and homicide. In this research, it is hypothesized that the pharmacological properties of the prescribed drugs or the interaction between the drugs and the enzymes that are primarily responsible for their metabolism (cytochrome P450s) could cause these reactions. Given that acts of violence could be medication-induced, the role of the rate of drug metabolism is discussed. Genetic testing of certain CYP450s could …

The African State: An Illusory Vestige Of Colonialism, Muhammad K. Otaru

Electronic Theses and Dissertations

In a 2006 Interview, prominent Nigerian author, and social commentator, Chimamanda Ngozi Adichie said; “…Nigeria was set up to fail. The only thing we Nigerians should take responsibility for is the extent of the failure….”1. Such a view about colonialism and the states it arbitrarily created is widely shared by many on the African continent, who have come to understand that the very creation and existence of the African state are largely to blame for the seemingly countless socio-economic and political issues faced on the continent.

1 Kimber, Charlie, Interview: Chimamanda Ngozi Adichie. The Socialist Review. (Online, October …

Poverty In The United States: An Analysis Of Its Measurement And The Long-Term Social And Economic Costs, Abby Magnus

Electronic Theses and Dissertations

This thesis examines the role of poverty in the United States and how it has impacted social and economic systems. It explores how U.S. poverty measurements developed in the 1960s may not be accurately measuring poverty now, and the ways in which these measures could be improved upon. This work also reviews literature on health and educational inequities stemming from socioeconomic class, and the role these play in long-term economic mobility. Finally, it analyzes how larger social institutions like mass incarceration and capitalism have developed around poverty, and the role they play in maintaining its prevalence today. This thesis finds …

System Update: Technology Based Intervention For Students With Intellectual And Developmental Disabilities, Marisa C. Simoni

Electronic Theses and Dissertations

Post-school outcomes are unfavorable to students with intellectual and developmental disabilities (IDD). Despite these outcomes and significant academic challenges, students with IDD have the potential to learn adaptive and life skills that lead to a more independent and fulfilling life through intentional intervention strategies. This dissertation explores technology-based interventions for students with IDD. Manuscript 1 presents a synthesis of literature related to technology, IDD, and a system of supports that schools utilize for tiered intervention delivery. Based on the findings, a new framework, Systems of Support for Technology Intervention (SSTI), is introduced to help guide school psychologists in choosing appropriate …

Land Use Influences Along Elevation Gradient On Macroinvertebrate Communities, Brittany Sprout

Electronic Theses and Dissertations

Land use activities have caused disturbances that affect the quality of freshwater ecosystems worldwide. How the influences of land use along an environmental gradient and the associated environmental variables that may influence stream diversity and function is unclear. We address these issues by studying biodiversity, abundance, and functional diversity of macroinvertebrates across different land types along a gradient in Colorado, USA. We also address how diversity may change along an elevation gradient by analyzing previously published macroinvertebrate research. We found evidence that land use and disturbance are stronger explanations of changes in macroinvertebrate communities, rather than elevation. Functional trait patterns …

Identification Of Gifted Characteristics Using The Behavioral Assessment Scale For Children—Third Edition, Kristine Zytka

Electronic Theses and Dissertations

Children who are gifted are at-risk for being misidentified with emotional and behavioral disorders (Daniels & Piechowski, 2009; Mullet & Rinn, 2015; Webb, 2016). Challenges exist in conclusively defining giftedness, assessing giftedness, and understanding common behavioral patterns among gifted individuals (Bracken & Brown, 2006; McClain & Pfeiffer, 2012). Because gifted children typically exhibit common behavioral patterns, it is important for school psychologists to understand gifted behavioral characteristics, how to assess these characteristics, and how to differentiate between common gifted behavior and maladaptive behavior (Daniels & Piechowski, 2009; Webb, 2016). This study examined the value of the BASC-3 in identifying gifted …

Thermally Driven Spin Transport In Ferromagnetic Metals, Wafa Saud Aljuaid

Electronic Theses and Dissertations

Since the discovery in 2008, the spin Seebeck effect has become one of the most active topics in the spin caloritronics research field. It opened a new way to create spin current by a combination of magnetic fields and heat. A temperature gradient in ferromagnetic (FM) metals generates a ow of spin current due to split of spin chemical potential between spin up and spin down electrons. This thermal spin current has been detected using an attached nonmagnetic heavy metal with large spin Hall angle via the inverse spin hall effect (ISHE). A voltage signal is generated since the nonmagnetic …

Xylo-Bot: A Therapeutic Robot-Based Music Platform For Children With Autism, Huanghao Feng

Electronic Theses and Dissertations

Children with Autism Spectrum Disorder (ASD) experience deficits in verbal and nonverbal communication skills, including motor control, emotional facial expressions, and eye gaze / joint attention. This Ph.D. dissertation focuses on studying the feasibility and effectiveness of using a social robot, called NAO, and a toy music instrument, xylophone, at modeling and improving the social responses and behaviors of children with ASD. In our investigation, we designed an autonomous social interactive music teaching system to fulfill this mission.

A novel modular robot-music teaching system consisting of three modules is presented. Module 1 provides an autonomous self-awareness positioning system for the …

Immortal Combat: Iconoclasm And The Hebrew Bible, Albert L. Mcclure

Electronic Theses and Dissertations

Biblical iconoclasm is any biblical text that describes the disruption of religious observances by physical violence against cult materials. This can include removing cult objects from their appointed places, god-napping divine bodies, outright destruction, cult reform, etc. Biblical iconoclasm, understood this way, is one component of the Hebrew Bible’s iconic politics. Other components of biblical iconic politics – like Idol Parodies, Bildersverbot, and aniconism – have been well studied in the past thirty years. Biblical iconoclasm has not shared the popularity of its collaborators in this respect. This dissertation is necessary because no extended study of iconoclasm in the Hebrew …

Deep Siamese Neural Networks For Facial Expression Recognition In The Wild, Wassan Hayale

Electronic Theses and Dissertations

The variation of facial images in the wild conditions due to head pose, face illumination, and occlusion can significantly affect the Facial Expression Recognition (FER) performance. Moreover, between subject variation introduced by age, gender, ethnic backgrounds, and identity can also influence the FER performance. This Ph.D. dissertation presents a novel algorithm for end-to-end facial expression recognition, valence and arousal estimation, and visual object matching based on deep Siamese Neural Networks to handle the extreme variation that exists in a facial dataset. In our main Siamese Neural Networks for facial expression recognition, the first network represents the classification framework, where we …

Sex, Love, And Masturbating: A Touchy Subject, Gabrielle Kaminsky-Bayer

Electronic Theses and Dissertations

The topic of female masturbation has long been considered taboo and this has impacted the sparse research on female masturbation. In addition to the limited literature that exists on women’s reasons for masturbating in general, there are even fewer studies regarding the motivation for women to masturbate while in a relationship or how masturbating in a relationship impacts relational and sexual satisfaction. To date, there has been no study that specifically looks at early adult women (25-35 years old) in relationships that assesses the attitudes and behaviors of masturbation on relational and sexual satisfaction. Additionally, this paper was structured …

China’S One Belt One Road Initiative—A Debt Trap?, Qi Liu

Electronic Theses and Dissertations

Infrastructure has been a bottleneck for industrialization of developing countries. After decades of economic growth led by investment in infrastructure, China released its first global strategy in 2013, One Belt One Road (BRI), to improve infrastructure in less developed countries along the belt and road. Although economic development has been witnessed in some BRI members, large amount of investments from China raised concern over debt crisis from the Western world and host countries. Countries receiving loans from China are struggling to effectively manage the BRI projects. Some are renegotiating the investments with China and some BRI members even canceled them. …

Windows Into The Unseen The Power Of Metaphor As Revealed By Paul Ricoeur And Moses Maimonides, Claire E. Molk

Electronic Theses and Dissertations

Ambiguous language haunts countless fields of human inquiry. The solution to its confounding nature has repeatedly been to reduce language to its face-value, launching an endless search for the right meaning. This paper aims to examine two thinkers who reveal language to be a more complicated matter. Paul Ricoeur and Moses Maimonides demonstrate the importance of language’s complexity through close examinations of metaphor. While we find different understandings of metaphor, reflecting different metaphysics within each author’s study, both Ricoeur and Maimonides contribute to the notion that language’s complexity is not to be eliminated through literal readings, but engaged to open …