Very few studies have attempted to directly explore the relationship between psychopathic traits and prejudice. Among the scant studies that do exist, interpretation is often clouded by measurement limitations. The current study surveyed a large sample of adults from the general U.S. population to further our understanding of the associations between psychopathic traits and prejudicial attitudes, as well as critical constructs linked to prejudice. By using modern and well-validated measures of the target constructs new relationships were documented for the first time. A path analytic framework was utilized to represent the network of construct inter-relations. Finally, the current study examined the relationships between psychopathic traits, in relation to the other members of the Dark Triad and positive human traits, referred to as the Light Triad, as well as how the latter may serve as ‘buffers' from prejudicial attitudes.

Group testing is all about identifying properties of a set of elements by testing them.

The current study of 151 college men explored weight-related factors that contribute to depressive symptoms among undergraduate men using structural equation modeling (SEM). Results of SEM supported the hypothesis that perceived negative messages about one's body and body dissatisfaction were significant mediators of the relationship between BMI and depressive symptoms. Moreover, social connectedness and academic self-concept were significant moderators of the relationship between body dissatisfaction and depressive symptoms. Although self-esteem was not a significant moderator, it was significantly related to body dissatisfaction, despite the men's magnitude of perceived body pressures. These findings inform therapeutic work with college men, signifying the importance of improving the quality of their relationships in family and social systems to reduce both depressive symptoms and body dissatisfaction. Furthermore, advocacy programming to counter body related pressure from media, societal systems, and other people would likely benefit college men struggling with body dissatisfaction and depressive symptoms.

This research is focused on a group of vegan and vegan-curious individuals who are creating, building and maintaining a vegan community of practice in Houston, Texas. Through ethnographic methods, including participant observation, in-depth semi-structured interviews, surveys, quantitative analysis, and use of geographic information systems (GIS), this thesis considers motivations, group hierarchies, core and peripheral membership, practices, beliefs and construction of identity within the vegan community of practice. Further, concepts from the anthropology of religion are utilized in discourse analysis around conversion to ethical veganism, preaching, and religious-ethical beliefs around enlightenment and the principle of ahimsa. Utilizing subcultural studies and social movement theory, this thesis also shows how the vegan community of practice fits into vegan subcultures and the greater vegan lifestyle movement. Finally, as an applied project, deliverables to the client Vegan Society of PEACE includes both personal and structural barriers to veganism which are understood with respect to a race-conscious approach to veganism, and with special consideration given to the capitalist commodification of animals. Suggestions are given and strategies for growth of the community are highlighted at the end of this paper.

Foster care alumni are a unique subset of college students who enter post-secondary education having faced significant socio-economic challenges and emotional trauma. These students often understand how attending post-secondary education can help create a more stable life. However, the graduation of this population is extremely low. The purpose of this qualitative study was to understand formerly fostered youths' perspectives of the needs and stressors students face while attending post-secondary education. Specifically, the researcher wanted to understand what characteristics influence former foster care youth to enroll in college and what characteristics help former foster care youth persist in higher education until graduation. The study utilized both student departure theory and resilience theory to frame each research question conceptually. The results illuminated the resilience of former fostered youth attending post-secondary education and their characteristics for continued enrollment.

When COVID-19 hit the United States in spring of 2020, collegiate student-athletes, who had sport seasons canceled and were forced to move off-campus, were uniquely and significantly impacted. Psychosocial resources, such as social support, self-compassion, and resilience, may have been used to help athletes cope with the stress of COVID-19. I used structural equation modeling to analyze the relationship of resilience, self-compassion, and social support to collegiate female athlete's (n = 3,924) psychological well-being at the beginning of the COVID-19 pandemic. Collectively, the more supported, self-compassionate, and resilient the athletes reported being, the less psychological distress they said they were experiencing (resilience to psychological distress (β = -.215, p < .001), self-compassion to psychological distress (β = -.533, p < .001), and social support to psychological distress (β = -.187, p < .001)). Further, self-compassion and social support were related indirectly (and inversely) to psychological distress, to the extent that they contributed to the athletes perceiving themselves as more resilient (Self Compassion X Resilience X Psychological Distress: β = -.106, 90% CI [-.148, -.069]; Social Support X Resilience Psychological Distress: β = -.065, 90% CI [-.099, -.041]). The total effect of social support, which included the direct and indirect effects, …

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 …

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 …

Computational chemistry examination of the bond dissociation enthalpies of tungsten and main group elements. Includes quantification and calibration of theoretical methods to address the question of bond strengths including component σ and π molecular bonds.

This dissertation focuses on the path planning of unmanned aerial vehicle (UAV) swarms under distributed and hybrid control scenarios. It presents two such models and analyzes them both from theory and practice. In the first method, a distributed formation control strategy for UAV swarm based on consensus law is presented. This model makes use of the fundamental concepts of leader-follower structure, social potential functions, and algebraic graph theory to jointly address flocking and de-confliction in the formation control problem. The impact of network topology on formation control is analyzed. It is shown that the degree distribution of the network representing the multi-agent system defines the rate at which formation is attained. Conditions for convergence and stability are derived. In the second method, a hybrid framework for path planning and coverage area by UAV swarms is presented. This strategy significantly improves the current labor-intensive and resource-constraint operations in aquaculture farms. To monitor the farms periodically, an optimized back-and-forth flight path based on the Shamos algorithm is utilized. A trajectory tracking strategy for UAV swarms under uncertain wind conditions is presented.

The history of the United States' occupation and administration of the Philippines is a premiere example of the evolution of the American military's civil administrative approach as it evolved from simple Army security in 1898, through an evolving ‘whole-of-government' method, to what was practically the full military administration of the country by March 1945. The second liberation and subsequent administration of the Philippines by the United States Army was unique, not simply because of the physical characteristics of the operations, but more so because of the theater commander, General Douglas MacArthur. MacArthur used a rather self-reliant approach that rejected much of the direction from various authorities in Washington and adopted independently authored local solutions, but he took advantage of external resources when necessary. Ultimately the United States Army Forces in the Far East (USAFFE) under his command had to accept external direction to gain external resources. The Army's civil administrative planning and execution in the Philippines in 1944-1945 was the direct result of the social, political, economic, and military relationships between Americans and Filipinos from 1898 to 1944, much of which involved MacArthur, and the institutional changes that developed from these interactions. The result was civil administration that met the …

What causes a teacher to leave and move to another district or campus? Many times, teachers leave because they are unsatisfied, overwhelmed, or unprepared for the demands of the job. The purpose of this study was to gain a deeper understanding of the contextual factors that may explain why teachers decide to transfer to another campus or leave their current district to pursue a position at another district. The following factors, as told from the teachers' perspective, were examined: (a) campus culture, (b) campus leadership, (c) working conditions, and (d) other contributing factors. This study focused on the types of experiences teachers reported encountering, whether positive or negative, that contributed to teacher turnover. Data for this qualitative study included a survey and focus group. Participants selected to participate in this study were teachers who either exited from a public-school district or transferred from one campus to another campus within the same school district. An analysis of the qualitative responses from the teacher survey and a focus group interview provided answers and insight into the research questions. The data were collected and analyzed to further understand the types of experiences or factors that contribute to teacher turnover within one school district. …

Korean art songs are valuable cultural assets that exhibit their own cultural spirit and ethnicity, however, they are not introduced to Western singers because of the language barrier. As there are European-language diction books for singers used in pedagogy, this dissertation introduces Korean diction for non-Korean-speaking singers by using the International Phonetic Alphabet (IPA) to pronounce Korean ‘Hangeul'. Moreover, this document aims to help singers enter into a new world of Korean art songs by introducing ten Korean art songs selected from various compositional periods, along with transcriptions using the IPA, transliterations, translations, and the musical scores.

Early reading intervention has not eradicated reading deficiencies at the middle school level. According to the National Center for Educational Statistics (NCES), adolescents continue to read below grade level in middle grades. Response to intervention (RTI) is one method of combating this educational concern. This study examined the impact of implementation of a RTI program within one district across multiple middle school campuses. Using individual structured online questionnaires, focus groups, and document analysis, the researcher employed a qualitative, multi-site case study design to evaluate the perceptions of impact of RTI through the lens of middle school reading teachers. Participants included a convenient purposive sample of middle school reading teachers in a suburban school district of about 24,000 students in North Central Texas. I present a review of relevant research at the middle school level to provide a framework for the current study. Additionally, an outline of methodology, research questions, and the proposed data analysis plan are provided. I discuss the intended use of constant comparative analysis to report findings in themes. Particularly, facilitators, hindrances, and impact are a priori themes for reporting.

In urban environments, ozone air pollution, poses significant risks to respiratory health. Fixed site monitoring is the primary method of measuring ozone concentrations for health advisories and pollutant reduction, but the spatial scale may not reflect the current population distribution or its future growth. Moreover, formal methods for the placement of ozone monitoring sites within populations potentially omit important spatial criteria, producing monitoring locations that could unintentionally underestimate the exposure burden. Although air pollution affects all people, the combination of underlying health, socioeconomic and demographic factors exacerbate the impact for socially vulnerable population groups. A need exists for assessing the spatial representativeness and data gaps of existing pollution sensor networks and to evaluate future placement strategies of additional sensors. This research also seeks to understand how air pollution monitor placement strategies may neglect social vulnerabilities and therefore, potentially underestimate exposure burdens in vulnerable populations.

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.

Ecological, health and environmental concerns are driving the need for bio-resourced foams for the building industry and for other applications. This is because insulation is one of the most important aspects of the building envelope. Global building insulation is expected to reach USD 27.74 billion in 2022. Conventional insulation materials currently used in buildings are made from nonrenewable products (petroleum, fiber glass). However, they yield increasing unrecyclable eco-unfriendly waste at the end of their lives; styrene and polyurethane generates over 100,000 kg of waste insulation in US alone yearly. This is because they are non-biodegradable and can remain as microplastics in the environment for 1000 years. Polyurethane contains the same amount of energy as coal. Additionally, most of the processing techniques and blowing agents used in this manufacturing of these foams are cancerous and injurious to health when inhaled. Because buildings and their construction together account for 36% of global energy use and 39% of energy-related carbon dioxide emissions annually, there is a need to develop eco-friendly foams that will serve as possible substitutes to the currently used petroleum-based foams. This dissertation examined the development and characterization of eco-friendly foams that were developed using the melt mixing technique of bio-resourced …

Research suggests that adult attachment is associated with various social roles, such as parenting, with insecure attachment patterns corresponding to lower levels of parenting competence. An increasing amount of research suggests that attachment patterns and social roles are interwoven with gender role beliefs. With family systems theory as an overarching framework, the current study extends the literature by examining dyadic associations between these variables in a sample of 61 cohabitating couples with at least one child under of the age of 18 in the home. Participants included opposite-sex and same-sex romantic partners who were recruited using online snowball sampling processes. The actor-partner interdependence model was used to assess the mutual influences between romantic partners in the parental dyads, specifically focusing on attachment patterns, parenting competence, and the moderating effect of individual gender role-beliefs and incongruence between the two partners' gender role beliefs in the co-parenting relationship. Results indicated both actor and partner attachment anxiety and avoidance were negatively correlated with parenting competence; gender roles beliefs moderated that association with egalitarian gender role beliefs buffering the negative effects of partners' high attachment avoidance or anxiety. Additionally, results indicated that gender role belief incongruence between partners also moderated the relationship between attachment …

Farmer suicide is at crisis levels in the United States and India. This crisis is both a problem of experiential knowledge within infrastructure as well as a problem of discourse power. I argue that the logical abstraction required to conceptualize and evaluate farmer suicide cannot be separated from the overall experience of farmer suicide. Rather than existing as distinctly separate phenomena, these elements are co-constitutive. Despite the Centers' for Disease Control identification and designation of farmer suicide as complex, statistically relevant, and elevated, nearly all the policy efforts addressing farmer suicide focus on narrow economic impact and narrow economic relief. While these economic vectors are important, the problem is multifaceted and requires a broadening of policy discourse to include additional factors (e.g. philosophical, existential, psychological, etc.). Using Hannah Arendt's work on politics and the human condition, I connect the conditionality of homo faber (human fabricator/maker), animal laborans (laboring animal), and vita activa (active life) with farmer struggle and suicide. Through the work of Georges Canguilhem and Achille Mbembe, I critique and analyze the predominant discourse and framing of suicide as a disease. Last, but not least, I propose decolonial theory and degrowth theory as viable critical pathways to shift the …

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 …

This thesis focuses on the recording challenges faced in biomedical systems. More specifically, the challenges in neural signal recording are explored. Instead of the typical synchronous ADC system, a level crossing ADC is detailed as it has gained recent interest for low-power biomedical systems. These systems take advantage of the time-sparse nature of the signals found in this application. A 10-bit design is presented to help capture the lower amplitude action potentials (APs) in neural signals. The design also achieves a full-scale bandwidth of 1.2 kHz, an ENOB of 9.81, a power consumption of 13.5 microwatts, operating at a supply voltage of 1.8 V. This design was simulated in Cadence using 180 nm CMOS technology.

This thesis provides a detailed description and analysis of the Mankiyali phonology, a hitherto undocumented and endangered language of northern Pakistan. The language is spoken by about 500 people in a remote mountainous area in the Mansehra district of Khyber Pakhtunkhwa Province, Pakistan. The data contained herein is a result of first-hand fieldwork with native Mankiyali speakers between 2019 and 2021. Data collection methods include recordings of naturally occurring discourse (e.g., stories, poems, conversations) and elicitation sessions with native speaker consultants. Topics covered in the thesis include an account of Mankiyali's phonemic inventory, phonotactics, a description of some phonological processes, minimal word constraints, and word stress placement.

The purpose of this study was to examine a novel campus-based multi-tier systems of support (MTSS) framework. The framework included a standard-response protocol approach to response to intervention (RTI), integrated with a reversed process to professional learning communities, to support learning for students who were struggling to learn. Using a causal-comparative research design, a secondary analysis of quantitative data from one Title I school of approximately 500 students during the 2016-2018 school years was conducted to determine the level of impact MTSS had on reading achievement. Independent and paired samples t-tests were used to analyze iStation indicators of progress reading scores, resulting in statistically significant results. Kindergarten through 5th grade students' reading scores were significantly higher after one year of MTSS intervention than students who did not receive MTSS. One year of MTSS intervention had a statistically significant impact on both early and intermediate readers. Early readers, who began below grade level, performed significantly higher in reading achievement after just one year of MTSS as well. Intermediate readers, who began on or above grade level did not perform significantly higher in reading achievement after one year of MTSS, however. Possible long-term implications for MTSS were analyzed by comparing one year …

Although the prevalence of disordered eating and exercise behaviors (DE/EBs) among queer men of color (Q-BIPOC) is higher than their heterosexual and white sexual minority peers, little is known about the mechanisms behind these differences. We evaluated a series of hypotheses to test DE/EB models on a sample of 78 Q-BIPOC men, who were recruited online during the COVID-19 pandemic and given a questionnaire measuring DE/EBs, body dissatisfaction, depression, mesomorphic ideal internalization, gender role conflict, and distress from intra-community racism and heterosexism. Results show that Q-BIPOC men reported high rates of emotional and binge eating, restrictive eating behaviors, supplement/diet pill use, and depression symptoms. Gender role conflict and intra-community racism/heterosexism are positively associated with emotional and binge eating, with gender role conflict holding unique predictive contribution as other variables of interest were held constant. Fat and muscle dissatisfaction were the strongest predictors of DE/EBs, mediating the effects of both mesomorphic ideal and depression. Results support the tripartite influence and dual pathway models for our sample, with mixed support for intersectional minority stress and affect regulation. Clinicians are cautioned to carefully assess Q-BIPOC men for eating disorders, given high rates of critical behaviors in the current sample. Researchers are also encouraged …