Digital Commons Network^™

Design, Evaluation, And Control Of Nexus: A Multiscale Additive Manufacturing Platform With Integrated 3d Printing And Robotic Assembly., Danming Wei

Electronic Theses and Dissertations

Additive manufacturing (AM) technology is an emerging approach to creating three-dimensional (3D) objects and has seen numerous applications in medical implants, transportation, aerospace, energy, consumer products, etc. Compared with manufacturing by forming and machining, additive manufacturing techniques provide more rapid, economical, efficient, reliable, and complex manufacturing processes. However, additive manufacturing also has limitations on print strength and dimensional tolerance, while traditional additive manufacturing hardware platforms for 3D printing have limited flexibility. In particular, part geometry and materials are limited to most 3D printing hardware. In addition, for multiscale and complex products, samples must be printed, fabricated, and transferred among different …

Rehabilitation Length Of Stay In Individuals With Spinal Cord Injury Paraplegia., Sahal Alzahrani

Electronic Theses and Dissertations

Background: Spinal Cord Injury (SCI) is associated with functional and physical limitations as well as psychological challenges. Rehabilitation care is crucial to SCI individuals’ overall health. It is recommended that individuals with SCI receive an intensive and early rehabilitation care to improve their health and avoid medical complications. Hospitals and rehabilitation facilities use length of stay (LOS) as a proxy to quantify rehabilitation care and a measure for quality of care. Objectives: This dissertation has three aims: 1) to identify factors associated with rehabilitation LOS in paraplegia populations, 2) to examine trends of inpatients rehabilitation LOS in SCI paraplegia between …

The Impact Of Volatile Organic Compound Exposure On Subclinical Biomarkers Of Cardiovascular Injury., Breandon Taylor

Electronic Theses and Dissertations

Pollution has been identified as the leading environmental cause of non-communicable disease and premature deaths globally. Volatile organic compounds (VOCs) are gaseous chemical constituents of pollution derived from a variety of sources, including industrial solvents and byproducts, automobile exhaust, tobacco smoke, cleaning supplies, and personal care products. VOCs are also abundant at various Superfund and Hazardous Waste Sites. Emerging data suggest that VOC exposure is associated with several adverse health outcomes, including cardiovascular disease (CVD). VOCs and their metabolites can potentially damage the endothelial lining of blood vessels, resulting in perturbed vascular function and vascular inflammation. We hypothesize that VOC …

Foreign Policy In Media: An Examination Of The Captain America Films., Kat Hernandez

Electronic Theses and Dissertations

Popular culture and media are consumed daily by billions around the world, media which can contain meaningful and politically relevant material. The three Captain America films from the 2010s represent this phenomenon in the presentation of Captain America as a nationalist superhero with geopolitically relevant storylines. The direction and production of these films illustrate significant parallels to foreign policy choices of the United States. Through an interpretive analysis of the Captain America films: Captain America: The First Avenger, Captain America: The Winter Soldier, and Captain America: Civil War, this project seeks to analyze Captain America’s image and …

La Casita Center: An Accompaniment Based Approach To Social Justice And Social Service., Ben Harlan

Electronic Theses and Dissertations

La Casita Center is a Louisville based nonprofit organization that accompanies Latinx immigrants in the Louisville Metro area. and that is led and staffed by Latina immigrants. In this thesis, I investigate how employees of this Latinx-immigrant led nonprofit organization, navigate challenges to both administer service and build community using the model of accompaniment. Organizations like La Casita are critically important for Latinx newcomer communities in the United States and as neoliberal and nativist-inspired policiescontinue to oppress and marginalize, La Casita provides a model for what it means to center inclusion, belonging, community, and solidarity. In a global landscape of …

The Effect Of Volatile Organic Compounds On Endothelial Function And Atherogenesis., Samantha Mcfall

Electronic Theses and Dissertations

Volatile organic compounds (VOCs) are a group of pervasive air pollutants that are released into the atmosphere from both anthropogenic and environmental sources. Recent epidemiological studies suggest that exposure to various VOCs is associated with an increased risk of cardiovascular disease. However, the relationship between VOCs and cardiovascular disease is not well-studied. Using animal models and three select VOCs, benzene, xylene, and trichloroethylene, we studied the effects of VOCs on endothelial injury and benzene-induced atherogenesis. We found that exposure to benzene and xylene increased circulating endothelial microparticles, depleted progenitor cells, and increased platelet activation. Following the exposure to the representative …

The Role Of Mri In Diagnosing Autism: A Machine Learning Perspective., Yaser Elnakieb

Electronic Theses and Dissertations

There is approximately 1 in every 44 children in the United States suffers from autism spectrum disorder (ASD), a disorder characterized by social and behavioral impairments. Communication difficulties, interpersonal difficulties, and behavioral difficulties are the top common symptoms. Even though symptoms can begin as early as infancy, it may take multiple visits to a pediatric specialist before an accurate diagnosis can be made. In addition, the diagnosis can be subjective, and different specialists may give different scores. There is a growing body of research suggesting differences in brain development and/or environmental and/or genetic factors contribute to autism development, but scientists …

Language Ideologies And Racialization Of Language: Multilingual Learners' Experiences In The First Year In A Community College., Yohimar Sivira Gonzalez

Electronic Theses and Dissertations

Community colleges have become key sites for preparing diverse and immigrant students for the transition to the workforce and four-year institutions. Yet, despite the recent growths of Multilingual Learners in community colleges, few studies focus on how students experience the first year in college after completing their ESL programs and their relations with instructors and how instructors perceive and interact with students institutionally classified as English as a Second Language (ESL) students. I use theories of language ideologies and racialization of language to understand multilingual learners’ experiences in the first year of college and how interaction with instructors shaped those …

A Mixed Methods Assessment Of Menstrual Hygiene Management And School Attendance Among Schoolgirls In Edo State, Nigeria., Madeline Tomlinson

Electronic Theses and Dissertations

Menstrual hygiene in lower-middle-income countries (LMICs) is limited and has been linked to many health, educational and social effects. However, the prevalence, details, and impact of menstrual hygiene management have not been well characterized in rural and peri-urban settings across Nigeria. The overall purpose of this research was to investigate menstrual hygiene management (MHM) among adolescent schoolgirls in peri-urban areas of Edo State, Nigeria; and to determine the educational consequences associated with poor MHM. MHM was measured using previously validated questions that were adapted after a formative assessment of MHM within the Edo State community. We used a mixed methods …

Self-Regulation In Young School-Aged Children With Williams Syndrome., Holley Arnold

Electronic Theses and Dissertations

My dissertation included two manuscripts which broadly focused on the self-regulation abilities of young school-aged children with Williams syndrome (WS), a rare neurodevelopmental disorder. Children with WS often exhibit mild to moderate intellectual disability (Kozel et al., 2021), impairments in behavioral and emotional regulation (Greiner de Magalhães et al., 2022), low effortful control (Leyfer et al., 2012), and deficits in adaptive skills (Brawn & Porter, 2018). In the first manuscript, the performance of children with WS on a gift-wrap delay of gratification task was characterized. In the second manuscript, the concurrent effects of the ability to regulate emotions, the ability …

A Psychometric Analysis Of The Comprehensive School Survey (Css) Middle School Student Version., Stephen Leach

Electronic Theses and Dissertations

School climate is increasingly recognized by scholars and policymakers as a crucial factor associated with students’ educational experiences. Hence, practitioners endeavor to equitably measure and improve school climate to promote favorable student academic and behavior outcomes. Unfortunately, school climate research is fragmented, and a research-practice gap exists in best scale development and validity testing practices. The result is a proliferation of practitioner-developed school climate measures lacking solid theory-grounding and evidence to support intended score interpretations and uses. In response, Whitehouse et al. (2021) proposed a validity testing framework for practitioner-developed instruments aimed at supporting culturally responsive school climate measurement. Their …

Iot In Smart Communities, Technologies And Applications., Muhammad Zaigham Abbas Shah Syed

Electronic Theses and Dissertations

Internet of Things is a system that integrates different devices and technologies, removing the necessity of human intervention. This enables the capacity of having smart (or smarter) cities around the world. By hosting different technologies and allowing interactions between them, the internet of things has spearheaded the development of smart city systems for sustainable living, increased comfort and productivity for citizens. The Internet of Things (IoT) for Smart Cities has many different domains and draws upon various underlying systems for its operation, in this work, we provide a holistic coverage of the Internet of Things in Smart Cities by discussing …

Stigma Described By Attempt Survivors With Diverse Gender And Sexual Identities In Their Suicide Stories: A Hermeneutic Phenomenological Dissertation., Sara Williams

Electronic Theses and Dissertations

Suicide is a profoundly impactful issue across societies. Gender and sexually diverse (GSD) populations exhibit rates of suicidal ideation and behavior far greater than those of cisgender heterosexual populations. Stigma impacts health outcomes among GSD populations through stress exposure and response processes. Compound stigma is experienced when individuals occupy positions in multiple stigmatized identity groups and can have multiplicative effects on adverse outcomes. Further, opportunities for positive social support and resilience building may be limited due to the narrow convergence of stigmatized identity groups. Stigma among GSD suicide attempt survivors (GSDAS) is an important phenomenon to explore in order to …

Mejorar La Raza: Measuring The Implicit Anti-Black Racial Bias Of Multiracial Individuals., Katalina Traxler

Electronic Theses and Dissertations

This dissertation sought to examine if there are implicit anti-Black racial bias differences across multiracial people who identify as Black/White compared to multiracial people who do not identify as Black/White, accounting for age, citizenship, and education level. It was also determined if age, citizenship status, and education level moderate the relationship between multiracial identity and implicit anti-Black racial bias. The theories guiding this dissertation were: Heider’s Balance Theory, Multiracial Identity Development, and White Identity Development. The data were collected from Project Implicit, a non-profit organization and international collaborative of researchers who are interested in implicit social cognition. The data analysis …

Increasing Self-Determination Skill Through Behavioral Skills Training For Individuals With Extensive Support Needs To Examine Reversible Contraceptive Choices., Jennifer Pollard

Electronic Theses and Dissertations

There is a long history of individuals with extensive support needs (ESN) being sterilized without their knowledge and consent. Students with ESN are defined as individuals who need continuous and widespread supports necessary for academic, communication, and/or daily living skills. These individuals typically have more than one diagnosis including a developmental disability (DD), intellectual disability (ID), and/or traumatic brain injury (Kurth et al., 2019; Taub et al., 2017). Part of the reason this is able to occur is due to a lack of education about sexual development and a lack of interventions to build skills related to self-determination or informed …

Examining The Effects Of Npra Antagonist Anantin On Sci-Induced Ployuria., Lindsey Zipperer

Electronic Theses and Dissertations

Polyuria, or the over production of urine, is a prevalent condition that significantly impacts the quality of life in individuals suffering from a spinal cord injury (SCI). Post-SCI induced polyuria is thought to have been associated with altered levels of vasopressin (AVP), atrial natriuretic peptide (ANP), and natriuretic peptide receptor A (NPRA). In the present study, the function of NPRA was analyzed in the rat contusion model using anantin, an NPRA antagonist. A daily dose of either 100 µg of anantin or vehicle was administered intraperitoneally immediately following the SCI surgery and continued until termination, 4 weeks post injury (wpi). …

Assessment Of Veteran Satisfaction With Telehealth Services During The Covid-19 Pandemic, Rhonda Kay Howard

Electronic Theses and Dissertations

Abstract

With the advent of the COVID-19 public health emergency in the United States, many U.S. veterans were unable to maintain their usual office visits due to safe access concerns. Patients were strongly encouraged to maintain their healthcare needs at home by utilizing online technology resources like telehealth services with their healthcare providers. Providing excellent healthcare services for veterans during COVID-19 became a challenge for primary care providers at many veteran healthcare organizations. Since little was known about the satisfaction of veteran clients with healthcare management using virtual care during the pandemic, this formative program evaluation was designed to survey …

Understanding The Role Of Faculty Advising In Graduate Allied Healthcare Profession Programs As Practitioners Transition To Professor, Lillie Marie Barnett Thomas

Electronic Theses and Dissertations

Individuals in allied healthcare professions continue to see growth in all areas, including clinical practice and higher education. Leaders at the university level, alongside leadership within allied healthcare accreditation bodies for disciplines like athletic training, occupational therapy, physical therapy, and speech-language pathology, maintain the need to grow the professions through master’s and doctoral degree programs. With the growth, many working practitioners move from clinical practice to academia with little to no experience or understanding of higher education and all the responsibilities of the job. This quantitative research study used a purposive sampling of allied healthcare professionals across the United States …

Influence Of Restorative Practices On The Middle-School Classroom, As Reported By Teachers: A Qualitative Case Study, Julia Y. Andrews

Electronic Theses and Dissertations

The purpose of this qualitative case study was to examine middle school teachers’ perceptions of the influence that restorative practices have on the middle school classroom environment. For the purpose of this study, seven middle school teachers were selected who have implemented restorative practices in their middle school classrooms to provide feedback. Findings suggest that overall restorative practices have a positive influence on the classroom. The findings from this study can be used with teachers, administrators, counselors, parents, and school and district support staff to help create a positive campus culture between students and adults in middle school classrooms. The …

Diabetes Family-Inclusion Education In The Outpatient Clinic, Sheryl Lyn Wright

Electronic Theses and Dissertations

Patient education is critical for the regulation of Type II Diabetes. This study evaluated 39 adults ≥ 40 years old with T2D and a HgbA1c level of ≥ 7.0%, including 27 women and 12 men aged 40 to 74. The participants were divided into two separate groups. The first group (19) diagnosed with T2D had no formal disease management education but were given videos on diabetes education to watch alone. The second group (202) was given family-inclusion diabetes education through videos. The hypothesis was that individuals who watched educational videos with family would have a more significant HgbA1c decrease than …

Parent Emotion Socialization And Emerging Adult Internalizing Symptoms: Differences And Moderation By Rurality, Cheston West

Electronic Theses and Dissertations

Emerging adulthood is a unique developmental period from late adolescence to late 20s during which individuals experience a multitude of developmental transitions and are at an increased risk for internalizing symptoms. Parent emotion socialization in childhood can also contribute to risk for internalizing symptoms and is shaped by parent gender and sociocultural context. Rurality is a sociocultural context that has implications for parenting, but less research has explored how parent emotion socialization varies by rurality. The present study examined maternal and paternal emotion socialization in relation to rurality and emerging adult internalizing symptoms. Participants were 270 emerging adults (18-29 years …

Coping Strategies And Self-Compassion As Protective Factors In The Infant And Early Childhood Mental Health Workforce, Megan Wolff

Electronic Theses and Dissertations

The mental health field experiences high levels of stress, resulting in a greater risk of poor professional quality of life, likely exacerbated by the additional stress associated with COVID-19. The present study examined the effect COVID-19 stress had on the professional quality of life of the infant and early childhood mental health (IECMH) workforce and whether coping strategies and self-compassion acted as protective factors. Results indicated that higher COVID-19 stress was associated with higher burnout and secondary traumatic stress (STS) and lower compassion satisfaction (CS). The results also showed that the pathway from COVID-19 stress to burnout was moderated by …

Susannah And Cold Mountain: Examining The Portrayal Of Appalachian Culture In Opera, Savannah Bennett

Electronic Theses and Dissertations

This thesis applies qualitative literary analysis and ethnographic methods to examine the portrayal of Appalachia in the operas Susannah and Cold Mountain. The operas were premiered almost 60 years apart, yet they share many themes that epitomize roles, patterns, and stereotypes within the Appalachian region. One theme observed is the role and expectations of Appalachian women and how they have developed over time, as the plots are placed roughly a century apart. The depictions of Appalachian religious traditions and representations of violence are also explored as these themes play a considerable role in Susannah and Cold Mountain. By analyzing …

The Mechanisms Of Mitochondrial Dysfunction In T Cell Aging During Chronic Viral Infection, Madison B. Schank

Electronic Theses and Dissertations

Human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections induce a myriad of disturbances to CD4 T cell functions, including mitochondrial compromise, excessive inflammation, increased telomeric DNA damage and attrition, cellular exhaustion and senescence, and accelerated aging. In this dissertation, the mechanisms underlying metabolic failure, accelerated aging, and cellular dysfunctions were evaluated in CD4 T cells from healthy subjects (HS) treated with a telomere-targeting drug (KML001) or HCV-infected individuals or people living with HIV (PLHIV) compared to HS. We observed that KML001-induced telomere injury resulted in mitochondrial swelling and decreased mitochondrial membrane potential, cellular respiration, mitochondrial DNA (mtDNA) copy …

Investigating The Pi3k/Akt/Atm Pathway, Telomeric Dna Damage, T Cell Death, And Crispr/Cas9-Mediated Gene Editing During Acute And Chronic Hiv Infection, Sushant Khanal

Electronic Theses and Dissertations

Human Immunodeficiency Virus (HIV) infection initiates major metabolic and cell- survival complications. Anti-retroviral therapy (ART) is the current approach to suppress active HIV replication to a level of undetected viral load, but it is not a curative approach. Newer and sophisticated gene editing technologies could indeed be a potent antiviral therapy to achieve a clinical sterilization/cure of HIV infection. Chronic HIV patients, even under a successful ART regimen, exhibit a low-grade inflammation, immune senescence, premature aging, telomeric DNA attrition, T cell apoptosis, and cellular homeostasis. In this dissertation, we investigated CD4 T cell homeostasis, degree of T cell apoptosis, an …

The Lived Experiences Of Students Who Are Single Parents And Attending Community College: A Phenomenological Study, Debbie Johnson

Electronic Theses and Dissertations

This qualitative study used phenomenological research methods to explore the lived experiences of single parents attending community college. The phenomenological research design was used to better understand participant experiences by examining the participant’s view of their situation. Thirteen single-parent students in community colleges in the United States were selected using purposeful sampling techniques. The participants included ten female participants and three male participants. Of these participants, nine students attended full-time, and four attended part-time. Each student participated in one-on-one interviews using Zoom technology.

The participants provided their perceptions of their experiences as single parents attending community college. These participants described …

Correctional Career Pathways: A Reentry Program For Incarceration, Taylor M. Dula

Electronic Theses and Dissertations

For the past several decades, the United States led the world in incarceration rates. With nearly 2.3 million people being held in state or federal prisons or local jails in 2019, incarceration rates in the United States are over four times higher than in other developed countries. Disparities exist by gender, race, ethnicity, and other special populations. Males are 13 times more likely to be incarcerated than females. Additionally, black males are 5.7 times and Hispanic males are 2.8 times more likely to be incarcerated than white males. Individuals who experience incarceration have poorer mental and physical health outcomes. People …

An Acute Sense Of Place: The Songs Of Norman Blake, Thomas Jutz

Electronic Theses and Dissertations

American flat-picking guitarist, singer and songwriter Norman Blake holds legendary status among guitar players, bluegrass, and folk musicians.

The aim of this research is to analyze the interaction of sense of place in Norman Blake’s songwriting. This research will explore the techniques Blake uses to create that acute sense of place. Elements of literary criticism, cultural geography, ethnomusicology, and sense of place studies, as well as historical background information on Northern Alabama and North Georgia will be employed to show how this particular region of Southeastern Appalachia has informed Blake’s songwriting.

The research questions that I aim to answer are …

Validating An Internet Gaming Disorder Measure During Covid-19: Video Game Use, Distance Learning, And Impacts Of Covid-19 On Gaming Behavior, Christin Collie

Electronic Theses and Dissertations

For most students, playing video games is a popular, enjoyable activity to do in their leisure time. While many people play video games for fun, some do develop problems associated with their play. Excessive engagement in video game play can lead to significant impairment and clinically significant levels of harm. However, there are several important gaps in the research literature which limit understanding of potential harm. First, little is known about the gaming behavior of students, ranging from middle-school to graduate school, specifically as it relates to their reasons for playing video games and their time spent playing. Second, concerns …

Physician Quality Scores And The Presentation And Delivery Method Of Data In A Residency Program, Monaco Briggs

Electronic Theses and Dissertations

The United States health care expenditures are higher than any other developed country. Due to this, physician payment reform is moving from fee-for-service (FFS) to a value-based model, with a focus on prevention and quality. The purpose of this quantitative study was to measure the effect of a series of data delivery interventions associated with the quality scorecards and which method increased the quality scores at a medical teaching practice in Tennessee.

Data were gathered via the Physician Quality Scorecard, an internally developed instrument. Each quarter, a different data delivery intervention was performed, and scorecard data were analyzed …