In this thesis, I explore the careers and songs of Florence Price and Margaret Bonds—two African American female composers who were part of the Chicago Renaissance. Price and Bonds were members of extensive, often informal, networks of Black women that fostered creativity and forged paths to success for Black female musicians during this era. Building on the work of Black feminist scholar Patricia Hill Collins, I contend that these efforts reflect Black feminist principles of Black women working together to create supportive environments, uplift one another, and foster resistance. I further argue that Black women's agency enabled the careers of Price and Bonds and that elements of Black feminism are not only present in their professional relationships, but also in their songs. Initially, I discuss how the background of the Harlem and Chicago Renaissances and racial uplift ideology shaped these women's artistic environment. I then examine how Bonds and Price incorporated, updated, and expanded versions of these ideals in their music and careers. Drawing on the scholarship of Rae Linda Brown, Angela Davis, and Tammy L. Kernodle, I analyze Price's "Song to the Dark Virgin," "Sympathy," and "Don't You Tell Me No" and Bonds's "Dream Variation," "Note on Commercial Theater," …

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The production and control of antihydrogen at very low temperatures provided a key tool to test the validity for the antimaterial of the fundamental principles of the interactions of nature such as the weak principle of equivalence (WEP), and CPT symmetry (Charge, Parity, and Time reversal). The work presented in this dissertation studies the collisions of electrons and positrons in strong magnetic fields that generate magnetobound positronium (positron-electron system temporarily bound due to the presence of a magnetic field) and its possible role in the generation of antihydrogen.

The dissertation examines factors influencing nonprofit organizations' contribution to collaborative governance for climate change adaptation and nonprofit roles in the collaboration. Why an organization collaborates with others has long been a concern of scholars. However, in a majority of empirical studies, collaboration has been considered as a dichotomous concept. To fill the gap, this study considers organizations' contribution to collaboration, i.e., collaboration level in terms of power, joint activities, human resource, funding, and information sharing. To understand contribution of nonprofits to collaboration for climate change adaptation, this research employs the institutional collective action framework suggesting that organizations work together when expected benefits are greater than collaborative risks. Survey data from 101 nonprofit private organizations (beyoungri mingan danche) in South Korea, which are legally defined in the Assistance for Nonprofit, Nongovernmental Organizations Act, are analyzed. Finding is that government funding and social relationship are strongly associated with nonprofit contribution to collaboration, highlighting that the financial stability of nonprofit organizations and mutual trust among entities based on routine interaction are critical motives for nonprofit collaboration. Finding also reveals that Korean nonprofits mainly play a role as social capital creators in climate change adaptation. The finding also highlights that Sang Bu Sang Jo …

School orchestra programs are overwhelmingly concentrated in suburban districts, which are becoming increasingly racially and economically diverse. Diversifying suburbs lie at the crossroads of race, racism, and whiteness and findings drawn from these settings can have implications for racial dynamics in all educational contexts. The purpose of this instrumental case study was to explore how racially underrepresented students perceive race within an urban characteristic high school orchestra program through the lens of critical race theory. I developed a composite counter-story to examine the racialized experience of school orchestra told from the perspective of students of color with a particular interest on competition. Participants were six students and two teachers affiliated with the same high school orchestra program in Texas. Emergent thematic findings examined students' sense of racial belonging, mechanisms upholding the racial status quo, and fulfilling aspects of students' orchestra participation. Though the lens of critical race theory, I discuss how everyday whiteness, property of whiteness, and meritocracy function to maintain white hegemony in school orchestra.

The purpose of this study was to investigate college student athletes' psychological health and well-being in the months immediately following graduation/retirement, which has been indicated as a critical time period. Participants consisted of collegiate athletes (N = 166; women = 138, men = 28; Mage = 21.84 years, SD = 0.86) who were surveyed at the end of their competitive seasons when they were graduating and retiring from their sports (Time 1) and 3 to 4 months later (Time 2). Athletes completed measures of readiness to graduate/retire, depression, body satisfaction, and satisfaction with life at Time 1; they completed the measures of psychological well-being at Time 2. Bivariate correlations revealed six dimensions of retirement readiness related to outcomes at Time 2: seeing self as more than an athlete, maintaining social support, neglecting other areas of life, achieving sport goals, utilizing sport career services and developing a new focus after retirement. Through a series of hierarchical regression analyses, one of reach psychological well-being outcome, I entered the Time 1 measure and gender in Step 1 and then the correlated dimensions for that outcome at Step 2. For body satisfaction, F(5, 160) = 27.281, p < .000, adj. R2 = .443, only …

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The demands on teachers have been further amplified both personal and professional in response to the COVID-19 pandemic, the level of stress teachers face is unsustainable. Stress can have negative outcomes for the teacher student relationship. Increasing teachers' social-emotional competence can lead to a more supportive classroom environment and improved teacher and student outcomes. Researchers have determined mindfulness-based interventions are conducive to increasing teachers' social-emotional competence. School counselors can assist and equip teachers with these vital skills through consultation services. To date, there are no studies that investigate the effects of a combined mindfulness and social-emotional learning-based school counselor consultation approach. In this study, I sought to explore the results of that approach. Teacher participants reported their racial identity as 22% Black (n = 7), 46% Caucasian (n = 15), 25% Hispanic (n = 8), 3% multi-racial (n = 1), and 3% Asian (n = 1) and self-reported gender as follows 38% male (n = 12) and 62% female (n = 20). Participants received 5 weeks of a combined mindfulness and social-emotional learning school counselor consultation. Results of hierarchical linear regressions revealed statistically significant improvement in the mindfulness disposition of acting with awareness, and practical significance of decreased perceived stress …

Forensic researchers and practitioners continue to face challenges when attempting to differentiate deceptive response styles, notably when comparing malingering and factitious disorder. However, due to the great disparities in research available, forensic examiners may not be adequately informed for considering factitious presentations as a competing hypothesis to malingering. De-emphasis of factitious disorders may also be attributed to the lack of empirical research and poor conceptual understanding of the disorder. Velsor and Rogers conducted a thorough review of various factitious motivations, drawing a parallel to Rogers' explanatory models of malingering. Due to the need for a systematic measure of FPPs, the Inventory of Self and Interpersonal Problems (I-SIP) was developed, largely based on the explanatory models of FPP. The current study employed a construct validity approach to the I-SIP to examine its convergent and discriminant validity in a sample of 80 inpatients from a private psychiatric hospital. Providing strong evidence of construct validity of the I-SIP, dramatic differences emerged between malingered and factitious presentations with extremely large effect sizes (ds = 1.09 – 3.62). In particular, results indicated strong support for the nurturance explanatory model of FPPs, as over-investment in treatment providers was an especially strong discriminator (d = 3.62). Moreover, …

Reports from the World Health Organization (WHO) indicate tremendous advancement in the fight against HIV/AIDS infection through prevention, provision of high-quality treatment options, and psychosocial services to infected and affected individuals and communities. However, there is still a considerable number of new infections occurring among children, especially in sub-Saharan Africa. Researchers highlight the benefits of HIV status disclosure to children. Yet, there is limited research concerning the ways counselors navigate the process of status disclosure to children with an HIV diagnosis. The purpose of this study was to examine the experiences of counselors regarding status disclosure to children living with HIV in Uganda, and to determine their self-identified training needs. I utilized a phenomenological qualitative research method and conducted individual interviews using a semi-structured interview protocol with 10 counselors from three HIV care centers in the central region of Uganda. Findings indicated six overarching themes including: (1) counselors' roles and responsibilities, (2) impact of age in the disclosure process, (3) motivations for disclosure, (4) challenges and barriers, (5) counselor preparations and trainings for disclosure, (6) and post-disclosure interventions. Study results highlight the critical role played by counselors during the HIV status disclosure process and the need for additional training and …

COVID-19 is a highly contagious and virulent disease caused by the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). COVID-19 disease induces lung changes observed in lung computerized tomography (CT) and the percentage of those diseased areas on the CT correlates with the severity of the disease. Therefore, segmentation of CT images to delineate the diseased or lesioned areas is a logical first step to quantify disease severity, which will help physicians predict disease prognosis and guide early treatments to deliver more positive patient outcomes. It is crucial to develop an automated analysis of CT images to save their time and efforts. This dissertation proposes CoviNet, a deep three-dimensional convolutional neural network (3D-CNN) to diagnose COVID-19 in CT images. It also proposes CoviNet Enhanced, a hybrid approach with 3D-CNN and support vector machines. It also proposes CoviSegNet and CoviSegNet Enhanced, which are enhanced U-Net models to segment ground-glass opacities and consolidations observed in computerized tomography (CT) images of COVID-19 patients. We trained and tested the proposed approaches using several public datasets of CT images. The experimental results show the proposed methods are highly effective for COVID-19 detection and segmentation and exhibit better accuracy, precision, sensitivity, specificity, F-1 score, Matthew's correlation coefficient (MCC), dice …

This thesis explores the way we learn to advocate for sexual assault survivors. This multi-methodological, qualitative study examines both popular cultural representations of sexual assault and official training materials provided by rape crisis centers and domestic violence organizations as sites of pedagogical messaging. I argue that it is imperative to incorporate intersectional feminist frameworks into understanding how advocacy is animated in these different sites of learning. This project offers an intersectional feminist analysis of two television shows: Netflix's Unbelievable and HBO's I May Destroy You, in addition to the Texas Association Against Sexual Assault (TAASA) training manual and supplemental training materials from six different rape crisis centers within a 75-mile radius of the Dallas Ft. Worth metroplex. Together, both sets of texts work pedagogically to teach us who is a worthy victim, what counts as "real" rape (and to challenge this very framework), and who deserves organizational resources. This thesis concludes by offering an Intersectional Rape Advocacy Toolkit, aimed at offering a set of values, lessons, and practices necessary for activists to grow in mutual advocacy for survivors and mutual support for fellow activists working to put an end to rape culture.

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This thesis illustrates how Melodrama and the melodramatic mode have been adapted within contemporary cinema as both a means of commenting on prior LGBTQI representation, and of exposing mainstream audiences to the issues still faced by many within this spectrum. Through my analyses of Carol (2015), Brokeback Mountain (2005), and A Single Man (2009), I examine how filmmakers have drawn on Melodrama as both an aesthetic form, and as a reference to the broader field of generic history and criticism which ground it as a subversive form of societal critique. By focusing specifically on how these three films portray ideological issues of gender, stereotyping, parenthood, aging, and personal shame, my thesis argues that these films are making a commentary on the damaging effects of these discourses on broader society. I also simultaneously question whether the Period Melodrama as a genre can ever fully escape the conservative nature of this form, as well as the implications of continuing to portray those on the LGBTQI spectrum as victims.

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This thesis project investigates, analyzes, designs, simulates, constructs and tests a dual-axis solar tracker system to track the sun and concentrates the heat of the sunlight, using a Fresnel lens, into a small area, which is above of an evaporator, to increase the temperature of the seawater to convert it into freshwater. The dual-axis solar tracker was designed with the main objectives that the structure was portable, dismountable, lightweight, low cost, corrosion resistant, wires inside pipes, accurate, small size, follow the sun automatically, off-grid (electrical), use green energy (solar powered), and has an empty area right below of the lens. First, a 500 mm diameter flat Fresnel lens was selected and simulated based on an algorithmic method achieved by a previous PhD student at UNT using MATLAB®, to give the optimization lens dimensions. The lens profile was drawn with AutoCAD®, then output profile lens was simulated in COMSOL Multiphysics®. The objective was to provide the high efficiency, optimum and high precision of the focal rays and heat to the receiver of the evaporator. A novel dual-axis solar tracker system was then designed that is portable, dismountable, lightweight and corrosion resistant. The solar tracker tracks the sun in two axis of …

Compressed sensing (CS) is an innovative approach of signal processing that facilitates sub-Nyquist processing of bio-signals, such as a neural signal, electrocardiogram (ECG), and electroencephalogram (EEG). This strategy can be used to lower the data rate to realize ultra-low-power performance, As the count of recording channels increases, data volume is increased resulting in impermissible transmitting power. This thesis work presents the implementation of a CMOS-based front-end design with the CS in the standard 180 nm CMOS process. A novel pseudo-random sequence generator is proposed, which consists of two different types of D flip-flops that are used for obtaining a completely random sequence. This thesis work also includes the (reverse electrowetting-on-dielectric) REWOD based energy harvesting model for self-powered bio-sensor which utilizes the electrical energy generated through the process of conversion of mechanical energy to electrical energy. This REWOD based energy harvesting model can be a good alternative to battery usage, particularly for the bio-wearable applications. The comparative analysis of the results generated for voltage, current and capacitance of the rough surface model is compared to that of results of planar surface REWOD.

The following thesis proposes solutions to problems in two main areas of focus, computer vision and machine learning. Chapter 2 utilizes traditional computer vision methods implemented in a novel manner to successfully identify overlays contained in broadcast footage. The remaining chapters explore machine learning algorithms and apply them in various manners to big data, multi-channel image data, and ECG data. L1 and L2 principal component analysis (PCA) algorithms are implemented and tested against each other in Python, providing a metric for future implementations. Selected algorithms from this set are then applied in conjunction with other methods to solve three distinct problems. The first problem is that of big data error detection, where PCA is effectively paired with statistical signal processing methods to create a weighted controlled algorithm. Problem 2 is an implementation of image fusion built to detect and remove noise from multispectral satellite imagery, that performs at a high level. The final problem examines ECG medical data classification. PCA is integrated into a neural network solution that achieves a small performance degradation while requiring less then 20% of the full data size.

Betrayal trauma theory (BTT) explains the relationship between a victim and perpetrator to be an especially critical factor for predicting adverse trauma outcomes; however, to date, there is no adequate measure to assess this relationship. We aimed to create a measure of reliance, here defined as dependence on another for food, clothing, finances, emotional support, and more. We utilized a new scale, the Reliance on Perpetrator Scale, to measure this construct. 397 participants completed a battery of questionnaires to measure reliance and 4 primary outcomes of interpersonal trauma exposure: PTSD symptoms, depression, event centrality, and dissociation. A series of exploratory principal components factor analyses provided evidence for a 3 factor solution for this scale, though visual examinations of scree plots and a parallel analysis indicated 2 factors. We ultimately chose to retain 2 factors: practical reliance and emotional dependence. We expected and achieved predictive validity such that practical reliance and emotional dependence were both highly positively correlated with all outcomes. We expected and achieved convergent validity such that positive affect and secure attachment were highly positively correlated with emotional dependence as measured by an existing scale. The current study replicated previous findings that high betrayal events—as opposed to low betrayal …

The COVID-19 pandemic wiped off decades of educational gains in the developing world and added 24 million more children to 775 million illiterates in the world. To counteract such a huge predicament, human learning agility comes into action. This human characteristic of knowing what to do when one does not know what to do, invokes the Soft System Methodology (SSM) approach to analyze illiteracy as the worst of all pandemics since it infiltrates into generations. After evaluating different effective teaching methods and utilizing the SSM approach, this paper proposes suitable pedagogies to educate deprived students. It examines Massive Online Open Courseware (MOOC) as a viable solution for K-12 students and compares it with a more robust educational technology model of Intelligent Tutoring System (ITS). Using artificial intelligence, the ITS tailors the instructional content framework and teaching strategies after evaluating students' pre-existing knowledge, learning habits, & styles. The ITS engages the student with the lesson with a two-way dialog while providing customized instruction and immediate feedback. An ITS requires no human intervention and could be a suitable replacement for an inadequately qualified teacher or no teacher. Hence it could be a practical tool in tackling the global literacy catastrophe. A comprehensive …

Dirty Eddie’s War is the true account of the war-time experiences of Harry Andrew March, Jr., captured by way of diary entries addressed to his beloved wife, Elsa. Nicknamed “Dirty Eddie” by his comrades, he served as a member of four squadrons operating in the South Pacific, frequently under difficult and perilous conditions. Flying initially from aircraft carriers covering the landings at Guadalcanal in August 1942, he was one of the first pilots in the air over the island and then later based at Henderson Field with the “Cactus Air Force.” When he returned to combat at Bougainville and the “Hot Box” of Rabaul, the exploits of the new Corsair squadron “Fighting Seventeen” became legendary. Disregarding official regulations, March kept an unauthorized diary recording life onboard aircraft carriers, the brutal campaign and primitive living conditions on Guadalcanal, and the shattering loss of close friends and comrades. He captures the intensity of combat operations over Rabaul and the stresses of overwhelming enemy aerial opposition. Lee Cook presents Dirty Eddie’s story through genuine extracts from his diary supplemented with contextual narrative on the war effort. It reveals the personal account of a pilot’s innermost thoughts: the action he saw, the effects of …

Graduate education can be psychologically taxing, and the academic tasks that graduate students are required to perform can cause a great level of stress, insecurity, and uncertainty. The unique experiences that female students of color face at the intersections of gender, race, and class may have negative effects on their academic performance and attainment. This research explored the experiences of discrimination among the female African American/Black and Hispanic/Latina graduate students and their coping strategies to survive in the program of study at the University of North Texas (UNT), as a minority serving institution (MSI). A narrative research method was applied and 13 in-depth interviews were conducted using a semi-structured interview protocol. The findings showed the participants experienced various types of intragroup and intergroup discrimination based on the intersections of their multiple identities, especially race, gender, and socioeconomic status. The findings of this study revealed structural discrimination that participants experienced through their education; starting with their low income neighborhood where they were raised and the discrimination at the university. They perceived that minorities are not represented in the management and faculty positions, and there is an inadequacy of support resources and lack of racially sensitive advising services for female graduate students …

People who live in mobile homes have heightened vulnerability to disasters, due in part to mobile homes increasingly occupying high-hazard risk lands and the precarious ownership status known as divided-tenure. Divided-tenure is when an individual owns a mobile home and rents the land underneath. To identify the challenges associated with divided-tenure and disaster recovery from a policy perspective, this study analyzed the content of key HUD policies and performed a comparative policy analysis of purchase opportunity laws (requirements of landowners to give mobile homeowners an opportunity to purchase the property their home resides on) in three states: California, Florida, and New York. Content analysis indicated few direct references to mobile homes. Inconsistencies and confusing messaging were found in the existing federal guidance. The lack of consistent terminology and guidance on addressing divided-tenure, limits mobile homeowner's options for disaster recovery, including eligibility for federal disaster aid and potentially participation in relocation or buyout programs. The three selected states' purchase opportunity laws reviewed in this study were rated as weak. Policies lacked alignment with federal documents and opportunities for mobile homeowners were difficult to navigate. A pathway to land ownership could give mobile homeowners more control over their disaster recovery options, but …

The underrepresentation of Mexican art song has left classical singers with few Spanish-language repertoire options. Currently, the music of Spain dominates this scene and Mexican art song has yet to earn a place in academic curricula and concert halls. Manuel María Ponce (1882-1948) retains an important position in Mexican music. However, Ponce's vocal repertoire—consisting of over 150 songs—remained dormant for many decades after his death due to its misclassification by music aristocrats in Mexico that greatly affected their diffusion. Consequently, few copies were published during Ponce's life, making them difficult to find. The need in the singing community for repertoire of this kind has raised many questions not only about its existence and availability, but also about its origins and relationship to the established Art Song canon. To promote the diffusion of this underrepresented repertoire, a style analysis of Ponce's Romantic Mexican Art Song is offered through the lens of his writings about Mexican Song. The analysis includes vital information about the origins, form, style, and subjects of these songs. Tangible examples of these traits are provided from Ponce's Doce Canciones Mexicanas along with historically-informed suggestions for singers and translations of the text with IPA transcriptions.