Digital Commons Network^™

Essays On Consumer Returns And Environmental Sustainability In Operations Management, Aditya Balaram

Theses and Dissertations

Consumer returns and environmental sustainability greatly impact the operational decisions that firms make. Focusing on consumer returns, lenient return policies aid consumers with resolving uncertainty but impose additional reverse logistics costs on retailers. The current retail landscape has largely eliminated the possibility of offering more stringent return policies since consumers have come to expect such policies as a given. This has driven retailers to look for innovative solutions while still offering costly free return policies. With respect to environmental sustainability, a number of operational decisions have been examined in the academic literature. These have ranged all the way from examining …

Creating A Culturally Inclusive American Literature Classroom, Holly R. Bradshaw

Theses and Dissertations

The purpose of this study was to determine what curricular and pedagogical changes connect with diverse high school students in an American literature course. Using a participatory action research approach, I collected qualitative data through interviews, observation, and narratives from a student focus group and myself. Data collection spanned an 18-week semester and involved students of varying racial and cultural backgrounds who identified as male, female, and nonbinary. The 12 focus group members were 11th-grade students at a public high school near Charlotte, North Carolina. The results signified that to increase student agency, teachers should offer diverse texts, pieces written …

The Relation Between Adhd Symptoms And Life Satisfaction/Self-Esteem Among Youth: Family Structure And Parenting Practices As Moderators, Yvette Rother

Theses and Dissertations

Children and adolescents with attention-deficit/hyperactivity disorder (ADHD) may be particularly vulnerable to lower life satisfaction and self-esteem, given negative perceptions about their abilities and self, as well as related impairments in academic, social, and interpersonal functioning. Family factors, such as family structure and parenting behaviors, can impact youth development and behaviors. However, it is unclear what role family factors play in the relation between ADHD symptoms and life satisfaction and self-esteem among youth. This study therefore examined whether ADHD symptoms have an impact on the life satisfaction and self-esteem of children and adolescents in grades 4-12. Moreover, it explored whether …

Governance Of Drug Development Alliances, Devashish Chandrashekhar Thakar

Theses and Dissertations

Innovative biotechnology firms (hereafter, biotechs or biotech firms) consider drug development alliances with incumbent pharmaceutical firms (hereafter, pharmas or pharma firms) as a means to access complementary commercialization capabilities, enhance their managerial skillset through close interactions, and maintain financial stability. However, biotechs face challenges in designing and developing alliance contracts that (a) enable them to retain and refine valuable alliance assets and (b) ensure that the alliance makes tangible scientific progress. Designing contracts to achieve these dual purposes is therefore a salient concern for the biotechs.

Given these challenges, the first essay of this dissertation explores the factors driving the …

Volume Change Measurements Of Cancer Cells In A Microfluidics Platform, Yukuan Yu

Theses and Dissertations

Understanding the function of aquaporins in transcellular transport is vital for homeostasis, pathophysiology, and translational potential in AQP-based diagnostics and therapeutics. Microfluidics device has the potential to evaluate the function of aquaporins with precise control and manipulate micro-scale fluid due to good optical quality and short processing distance. This work has two parts: cell culture in a microfluidic chip to characterize aquaporins’ function and visualization of single cell volume change under osmotic pressure shock in a homemade imaging dish. For the first part, we established a microfluidics platform for future modification and measurement of the dynamic volume change of biological …

Jewish Genetic Diseases: Knowledge Of Reproductive Risk And Cancer Predisposition Among Young Adults Of Ashkenazi Descent, Hayley Kathleen Granger

Theses and Dissertations

Founder mutations within the Ashkenazi Jewish (AJ) population are associated with significantly higher carrier rates for certain severe, life-limiting conditions collectively called Jewish Genetic Diseases (JGDs), and for pathogenic variants in the BRCA1 and BRCA2 (BRCA1/2) cancer susceptibility genes. Efforts to educate AJ individuals about the implications of these founder mutations and available testing have increased the past forty years; however, studies suggest AJ individuals are not well educated on the topic (Hardy et al., 2022; Kaback, 2001; Warsch et al., 2014). Studies evaluating the reason for this gap in knowledge of young AJ adults are lacking. This study aimed …

Experiences Of Parents Of Children With Late-Onset Pompe Disease Diagnosed By Newborn Screening, Allison Marie Paltzer

Theses and Dissertations

Pompe disease is an autosomal recessive lysosomal and glycogen storage disorder. It is classified as either infantile-onset Pompe disease (IOPD), which is characterized by severe muscle weakness and enlarged heart shortly after birth, or late-onset Pompe disease (LOPD), which is characterized by more slowly progressive weakness without obvious symptoms at birth. Pompe disease was added to the Recommended Uniform Screening Panel (RUSP) for newborn screening (NBS) in 2015 as early treatment with enzyme replacement therapy is lifesaving for children with IOPD. However, most patients identified via newborn screening have LOPD, which does not require immediate treatment and may not present …

“It Looks Like The Future But Feels Like The Past”: Oral (Hi)Stories Of Appalachia As Covid-19 News Stories, Ashley Reid Mcgraw

Theses and Dissertations

Oral historians have often felt obligated to collect stories during disasters and crises, to preserve recollections of experiences and trauma of those affected. During the onset of COVID-19 in the United States, this surge was certainly present. Appalachia, although its boundaries are contested, has a strong association with oral histories, and thus was the focus of one project in particular: a collaboration with the Blue Ridge Public Radio and the Foxfire Appalachian Heritage Museum to collect, curate, publish, and broadcast oral histories of "local" individuals. But what does it mean to be local, in a region as broad as Appalachia? …

Projecting The Effects Of Climate Change And Urbanization On Longleaf Pine Stands In The Florida Flatwoods, Lilian Grace Hutchens

Theses and Dissertations

The southeastern United States once held millions of hectares of highly connected longleaf pine ecosystem. In a dramatic range reduction, longleaf pine now occupies less than 5% of its original extent, its remnant patches existing within a matrix of human-dominated land uses. Conservation planning for longleaf pine ecosystems is complicated given the ecosystem’s reliance on fire and the broad spatial and temporal scales at which longleaf pine management must operate. Planning timelines for longleaf pine management extend into the end of the 21st century, a period during which climate, fire regimes, and land cover are all expected to change, influencing …

Identity In Literacy Narratives: Toward Reflexive Pedagogy In First Year Writing, Laiken Elizabeth Harrigan

Theses and Dissertations

An ongoing discussion for composition pedagogues is the relation of individuals’ identities and discourse histories in relation to academic discourses. In this thesis, I argue that academic discourse cannot be entirely separated from personal discourse, as individuals are always in conversation with their discoursal histories and identities. In order to better understand how students perceive their relationships to academic discourse, I analyze how First Year Writing (FYW) students experience the discourse of FYW— where they either intertwine their identities or we see their personal identities collide with the academic space. I used open coding to conduct a textual analysis of …

Understanding Intergenerational Transmission And Frequency Of Ethnic-Racial Socialization Practices Among Racial Ethnic Minority Groups, Ryan Chantz Houston-Dial

Theses and Dissertations

Ethnic-racial socialization (ERS) is a multidimensional concept that can be defined as the transmission of attitudes, beliefs and messages about ethnic-racial group membership (Hughes et al., 2006). To counteract the negative effects of discriminatory experiences, ethnic minority parents proactively impart race-salient messages to their youth. Sociodemographic variables such as regional location has been shown to affect the frequency of ERS messages as well (Thornton et al., 1990). The current study examines ERS practices in 436 African American, Hispanic/Latinx and Asian American parents. This study also explores the concept of intergenerational transmission, in which parents pass on to their own children …

Advancing The Engineering Workforce By Enhancing Diversity, Equity, And Inclusion In The Engineering Classroom, Phoneia Hughes Myers

Theses and Dissertations

Society’s dependence on engineered products is steadily increasing. This dependence requires the engineering workforce to continually innovate and design new advancements. In pursuit of this, engineering employers are implementing diversity, equity, and inclusion initiatives to attract prime candidates and retain employees. For employers to achieve the goals of their initiatives, engineering colleges and universities must produce a diverse pool of graduates. The purpose of this thesis report is to investigate how the diversity, equity, and inclusion concept can be implemented into engineering education to assist with producing diverse graduating classes. A universal methodology is proposed to provide a roadmap on …

A Critical Examination Of An In Class Tabata Based Physical Fitness Protocol On Student Engagement Levels In A Sixth Grade Math Class, Justin R. Kulik

Theses and Dissertations

The purpose of this study was to evaluate the effectiveness of a Tabata Based Physical Fitness Intervention (TBPFI) on measures of student engagement in a middle school mathematics class. Student engagement was measured with the Student Engagement in Mathematics Scale (SEMS) which a Likert style scale. The results of this survey supplied a numerical rating for the social, emotional, and cognitive engagement of each studentparticipant in the study on days when a TBPFI was implemented and on days when it was not implemented. Additionally, pre- and post-interviews were conducted with the student-participants and the teacher-participant. Finally, researcher observations and rating …

Genetic Testing For Autism: The Autistic Adult Perspective, Thomas Scott Dent

Theses and Dissertations

Many professional medical organizations recommend some level of genetic testing as standard of care for those diagnosed with autism spectrum disorder. However, genetic testing related to the diagnosis of autism is seen as controversial by many in the autistic community. While opinions about genetic testing have been well-documented from the perspective of the parents of autistic children, our understanding of the autistic adult perspective remains limited. We implemented a descriptive, web-based survey of autistic adults to assess their awareness of, attitudes towards, and interests in genetic testing for autism (n = 145). Our data demonstrated that half of our participants …

Examining The Relationship Between Multicultural Training And Cultural Humility Development In Cacrep-Accredited Counselor Education Programs, Sabrina Monique Johnson

Theses and Dissertations

To account for and adjust to the diversifying communities in the United States, CACREP, the ACA, and AMCD are making strides to increase counselor competence. Their efforts have involved incorporating standards that govern counselor training and practice to ensure counselors’ development of multicultural competence. In recent literature, researchers have proposed cultural humility development to further enhance the development of counselor cultural awareness and sensitivity, however there are minimal studies exploring the relationship between current multicultural training practices and the development of cultural humility characteristics of counselor trainees’ in CACREP-accredited counselor education programs. The current study has two primary aims: (1) …

Risk Propensity In Journalists: An Analysis Of Journalists’ Personality Traits And How They Direct Behavior In The Field, Ellen Katherine Dunn

Theses and Dissertations

Much like first responders, journalists run toward dangerous scenes instead of away from them, often putting themselves at risk. Unlike first responders, there is no research on a how a person’s risk propensity ties to their career. For this project, reporters of various ages and tenures were surveyed on their sensation-seeking levels and propensity to engage in risky behaviors while working as journalists. Journalism risk propensity correlated positively with sensation seeking. Risk motivations increase with age and tenure, meaning that older and more experienced journalists are more likely to engage in risky behavior. Males are more risk-prone than females. The …

Exploration Into The Relationship Between Colitis And Depression: A Potential Role For The Aryl Hydrocarbon Receptor, Kasie Lynn Roark

Theses and Dissertations

Inflammatory Bowel Disease (IBD) is a group of chronic gastrointestinal disorders with unclear etiology comprised of two defined disorders – Crohn’s Disease (CD) and Ulcerative Colitis (UC). IBD leads to chronic pain, socially isolating symptoms, and an overall reduction in patient quality of life. There is currently no cure for IBD. Due to decreased mucous production and weakening of the colonic epithelial lining, gut-microbiota and their metabolites can invade the intestinal lamina propria and circulate systemically, a term known as “leaky gut”. Recent studies show a relationship exists between peripheral inflammation, such as IBD, and depression. The gut-brain axis (GBA) …

An Artificial Intelligence Approach To Fatigue Crack Length Estimation From Acoustic Emission Signals, Shane T. Ennis

Theses and Dissertations

As in service aircraft begin to age and fatigue, a method for evaluating the operational life they are currently operating under and have remaining comes into question. Structural health monitoring is (SHM) is a popular method of structural analysis with growing interest in the aerospace industry. SHM is capable of damage assessment and structural life estimations.

The ultimate goal of the research presented in this thesis is to develop a methodology of classifying the length of a fatigue crack though the use of machine learning. The thesis has three major chapters as described below.

The first chapter deals with the …

Nurse Perceptions Of Caring And Professional Governance, Lan Angela Nguyen

Theses and Dissertations

Background: Caring, a characteristic of an effective work environment, and clinical nurse control over the professional governance of nursing practice results in higher nursing retention and better patient outcomes. Although the concepts of caring and professional governance of nursing practice, and their discrete associations with patient outcomes, are widely studied, little to no research is published on the nature of the relationship between caring and professional governance of nursing practice. Without understanding this relationship, it is challenging to explore the impact of this relationship on nursing practice and patient outcomes.

Aims: The purpose of this study was to describe nurse …

The Effects Of Hip-Hop And Rap Music Intervention To Improve The Wellbeing Of Black And African American Men, Lanita Michelle Jefferson

Theses and Dissertations

Wellbeing affects an individual’s functioning regarding personal, interpersonal, social, and overall wellbeing (Tennant et al., 2007). This study investigated the wellbeing of mental health among African American college-aged men by reading hip-hop and rap lyrics (Gonzalez & Hayes, 2009). The study explored the effects of reading hip-hop and rap lyrics on Black and African American college-aged men's wellbeing. Through peer review articles, this study investigated the effects of reading hip-hop and rap lyrics on the wellbeing of Black and African American college-aged men. The researcher identified the lack of research on wellbeing and marginalized communities, specifically Black and African American …

Multisensory Phonics Instruction In Struggling Readers, Amanda M. Dixon

Theses and Dissertations

This paper describes a problem of practice that arose from a lack of consistent, systematic phonics instruction within a small rural school with a large percentage of students not mastering skills in a way that builds the needed foundation for reading. To address this problem, action research was conducted through a mixed methods approach to determine the impact of multisensory Orton-Gillingham based reading instruction on a small population of students’ phonetic development and how this specific type of instruction affected their attitudes about reading. In an attempt to collect quantitative data, this study was guided by two research questions: How …

Academic Success And Student Development In The Health Professions: An Action Research Study, Molly Ellen Higbie

Theses and Dissertations

The first year of college is a time of challenging transition for many. Students are adapting to a new way of learning as well as developing as adults. Using a mixed methods design, this action research study aimed to provide insight into the student experience for academically at-risk first-year students in a health professions program at a mid-size university in New England. Quantitative data showed that most students’ academic performance met or exceeded the minimum requirement for their major with support from their advisor through this intervention. Further, quantitative data showed that student development did occur for participants. Qualitative data …

Exercise And Mental Health Over The Course Of A Semester, Jamie Alexis Whitney

Theses and Dissertations

Introduction and purpose: Anxiety and depression are two of the most common mental health struggles in the United States each year. There has been promising research noting the positive effects of exercise on lowering symptoms of both anxiety and depression. Anxiety and depression are highly prevalent on college campuses, especially during high stress portions of the semester. The purpose of this study was to observe the changes in mental health over the course of the semester and if exercise level mediated any of these changes in the university population. Methods: Participants scanned a QR code or followed a link to …

Complex Stereotypes: Stereotypes Across The Intersections Of Gender, Sexuality, Age, Race/Ethnicity, And Social Class, Nicholas Heiserman

Theses and Dissertations

Research on stereotypes and their consequences often focuses on discrete categorical stereotypes in isolation from each other (e.g. gender or race categories), and rarely centers the fact that people belong to many social categories at once (e.g. gender and race categories). I address this issue using two large factorial experiment (N=1,762 and N=1,481) designed to measure two core aspects of stereotypes, warmth and competence, across the intersections of multiple social categories: Gender, Sexuality, Age, Race/Ethnicity (Chapter 3), and Social Class (Chapter 2). In Chapter 2, I develop a framework for analyzing intersectional complexity in these data, beginning with overall measures …

A Holistic View Of Integrated Care Within Counselor Education: A Multi-Manuscript Dissertation, Alexander Mcclain Fields

Theses and Dissertations

The integration of behavioral health into primary care settings, otherwise known as integrated care (IC), is a movement growing in momentum and continues to challenge traditional healthcare occurring in silos. Through an IC modality, healthcare consumers receive all their care through a “one stop shop” approach and previous outcomes have suggested an overall benefit for an individual’s holistic health, as well as savings for healthcare settings. Counselors are in a prime position to join IC teams and contribute to consumer healthcare outcomes through a unique professional identity. The aim of this dissertation study, which consisted of three completed manuscripts, was …

Language Ideologies In Transgender Communities In The U.S. South, Archie Crowley

Theses and Dissertations

This dissertation examines how metalinguistic discussions within transgender communities in South Carolina are shaped by experiences, identities, and ideologies related to intersecting social dimensions, specifically, gender, age, race, and regional identity. Based primarily on 20 ethnographic group and individual interviews with 41 transgender individuals living in South Carolina, as well as over 24 months of participant-observation in two trans organizations, the analysis illustrates how trans South Carolinians simultaneously navigated changing norms of community language use, expectations of regional linguistic practices, and mainstream discussions of trans linguistic affirmation. I draw on these sociolinguistic and linguistic anthropological methods to examine how discourses …

Physics-Based And Behavioral Models For Fuel Cells, Charles Chima Anyim

Theses and Dissertations

In recent times there has been renewed interest in fuel cells for electricity production, especially for transportation applications. Fuel cells are attractive because the electricity production process from chemical energy does not cause pollution, and no carbon emissions occur. In this work, we will focus on Proton Exchange Membrane (PEM) fuel cells that use hydrogen and oxygen to generate electricity, producing only electricity, heat and water. If hydrogen can be produced in a green, non-polluting way, fuel cells can truly be an environmentally benign energy source.

In this work, we will look at the modeling of a fuel cell system. …

Utilizing Deep Learning Methods In The Identification And Synthesis Of Gene Regulations, Jiandong Wang

Theses and Dissertations

Gene expression is the fundamental differentiation and development process of life. Although all cells in an organism have essentially the same DNA, cell types and activities vary due to changes in gene expression. Gene expression can be influenced by many gene regulations. RNA editing contributes to the variety of RNA and proteins by allowing single nucleotide substitution. Reverse transcription can alter the expression status of genes by inducing genetic diversity and polymorphism via novel insertions, deletions, and recombination events. Gene regulation is critical to normal development because it enables cells to respond rapidly to environmental changes. However, identifying gene regulations …

Teacher Observations As Professional Development Opportunities, Ashton Carrie Padgett

Theses and Dissertations

This research project sought to understand how the complexities and challenges of offering high-quality professional development district-wide impacted teachers’ ability to implement their new learning. The literature posits that to be considered effective, professional development must include six distinct design elements: (1) Data driven, (2) Incorporates active learning utilizing adult learning theory, (3) Supports collaboration, (4) Context-Specific, (5) Feedback-centered, and (6) Supported by principal leadership (Darling Hammond et al., 2017, p. 4). While each of these design elements seems appropriate and rooted in best practices, when planning professional development, the scheduling and unique circumstances of secondary schools makes incorporating these …

Speckle Development And Application In Uav-Based Digital Image Correlation For Transportation Infrastructure Monitoring And Assessment, Taylor Wyatt

Theses and Dissertations

A critical aspect of civil infrastructure is structural health monitoring, of which digital image correlation (DIC) has been proven to be an effective and appropriate method. There is sufficient literature on the use of stationary DIC, but an unexplored aspect is DIC-equipped unmanned aircraft systems. It has been verified in University of South Carolina labs but has not been proved in a field environment. One of the challenges of field implementation is large scale speckle application. This work focusses on identifying and addressing challenges in bringing UAV-DIC technology from the lab to the field. This includes the development of optimized …