Digital Commons Network^™

Politically Speaking: Participation Of Indigenous Women In Canada And The Importance Of Intersectionality And Indigenous Resurgence, Renee Grozelle

Electronic Theses and Dissertations

In the current political climate, the efforts of Indigenous women in the advancement of Indigenous rights have not gone unnoticed. Particularly, in 2012 the Idle No More movement gained attention across Canada and throughout the world, with Indigenous women front and centre, leading the fight against the destruction of land and working towards advancing the rights of Indigenous peoples. Importantly, the ways in which Indigenous women engage politically has continued to evolve and there is a need to document and understand the changes that are occurring. This research seeks to examine the changes in political participation among Indigenous women by …

Root System Response Of Soybean To Microplastics Of Varying Types And Concentrations, Deqa Farow

Electronic Theses and Dissertations

Biosolid fertilizer use causes the input of microplastics into the rhizosphere where they may interfere with root interactions with the soil and microbial community and thereby hinder plant acquisition of nutrients and water. However, it is unclear what microplastic concentration or types affect plant root system and when these impacts manifest. Using the rhizobox method, soybeans were grown in soil was dosed with microplastic mimics (PET sheets and PP beads at 2,000 and 15,000 particles / kg dry soil) and biosolids. A time-series analysis was conducted on plant root traits using non-destructive imaging with an Epson 12000xl scanner of the …

Politics Of Resistance: On Muslim Women Advancing A Collective Critical Faith-Based Epistemic, Ayesha Mian Akram

Electronic Theses and Dissertations

Hegemonic anti-Muslim rhetoric, entangled with global structures of white supremacy, imperialism, and colonialism, constructs Islam as culturally and civilizationally critical to the instability of supposedly peaceful secular western societies. Muslim women’s bodies, specifically, become sites where the Muslim is socio-politically constructed as Other, disconnected from her religiosity and constituted as a racialized Other. This dissertation contributes to the nuanced and intersectional body of scholarship examining the complexities of the Muslim experience in Canada today by analyzing the creation and power of a group of Muslim women engaged in impactful resistances as they seek to create change within and for their …

Ndnhealth: A Secure Mhealth Infrastructure Over Named Data Networking, Saurab Dulal

Electronic Theses and Dissertations

Wearable devices like smartwatches, fitness trackers, and body sensors have become increasingly popular for health and wellness. Mobile Health (mHealth) uses wearable and mobile devices, wireless technologies, and data science to collect and analyze health data to improve health delivery and outcomes. However, privacy and legal concerns surrounding mHealth data make building a secure mHealth infrastructure a challenging task. Moreover, real-time sharing with many data consumers is another challenge in enabling temporally precise mHealth intervention. This dissertation proposes NDNHealth, a secure mHealth infrastructure over the Named Data Networking (NDN) architecture. NDNHealth provides a secure, efficient, and scalable way to share …

Word Made Flesh: Biblicality In Cormac Mccarthy's Appalacian Novels, Brett Lewis

Electronic Theses and Dissertations

McCarthy’s Appalachian novels in particular, beginning with his first novel The Orchard Keeper in 1965, show the outline of biblicality, a concept which entails the use of religious imagery, the employment of biblical language, the interplay between religious and secular elements, the profound impact of Appalachian landscapes, along with the thematic exploration of faith, morality, and the human condition. Outer Dark (1968), Child of God (1972), Suttree (1979), and The Road (2005), expound, in more detail, upon these ideas through the use of the themes of darkness, light, and objects of divinity, outsiders, and suicide. McCarthy’s Appalachian novels, showcase biblicality …

Examining Enrollment Trends Before And After Test Optional Policy Implementation: An Application Of Crt And Quantcrit In Higher Education, Marja Martin-Carruth

Electronic Theses and Dissertations

College and university admission testing requirements often serve as a barrier to many students seeking advanced degrees. Many graduate school admission boards/committees use the minimum testing requirement as a predictor variable to explain a student’s chance for success in a program. Before the 2020 Fall semester, many graduate schools required a minimum set score on either the Graduate Management Admission Test (GMAT) or the Graduate Record Exam (GRE) as a part of admission requirements. However, during that time, standardized testing ceased, and colleges and universities had to implement new admission requirements that did not include testing. These new policies became …

Adverse Childhood Experiences And College Attainment: A Moderated Moderation Exploring Safe, Stable & Nurturing Relationships, Race/Ethnicity And Gender, Alicia Vincent Stires

Electronic Theses and Dissertations

Abstract Statement of the Problem: This study aimed to understand the impact of exposure to ACEs in childhood on college attainment in adulthood and if safe, stable, and nurturing relationships (SSNRs) in childhood mitigate the risks of exposure to trauma through a contextual lens by exploring results by race/ethnicity and gender. Research: Exposure to adverse and traumatic experiences in childhood can adversely impact learning, behavior, and health outcomes throughout the lifespan (Shonkoff et al., 2012). Supportive adults that provide SSNRs can buffer adverse childhood events and help foster children’s resiliency by buffering or eliminating risk factors. Research has been limited …

Bach's Chaconne, Bwv 1004: A Guide To Historically Informed Performance, Christina Volz-Stomackin

Electronic Theses and Dissertations

In this dissertation I have decided to explore, from a historical perspective, a piece of music that is well-known to many violinists: J.S. Bach’s masterpiece, the Chaconne from Partita no. 2 in D minor. My goal is for this to be an informative and accessible resource for modern performers who may be interested in experimenting with historical performance practices in their approach to Bach and to Baroque music in general. I have chosen to focus my discussion on Bach’s Chaconne because of the wide-ranging scope of the movement, which affords opportunities for variety and depth in the topics I wish …

Community College Students' Perceptions Of Sense Of Community And Instructor Presence In The Online Classroom, Marla Cartwright

Electronic Theses and Dissertations

The purpose of this non-experimental, comparative, quantitative study was to determine if there were significant differences between the perceptions of male and female community college students about the importance of sense of community (SoC) in online classes and sense of instructor presence (IP) at eight southern, public, community colleges using survey data. It was the intent of the study to determine if there were significant relationships of students’ perceptions of the presence of sense of community in online classes among factors of age, race, grade point average, cumulative credit hours, credential type, major area of study, and number of previous …

Effect Of Macrophage Expressed Α7 Nicotinic Acetylcholine Receptor (Α7nachr) On Migration Of Macrophages During Inflammation, Kasey Keever

Electronic Theses and Dissertations

Sepsis is a life-threatening condition characterized by overwhelming inflammation, resulting in organ system damage, leading to a high mortality rate. Care in the clinical setting is supportive, and there are no approved sepsis-specific treatments. In septic mice, activation of the cholinergic anti-inflammatory pathway decreases cytokine secretion by leukocytes and improves survival. The cholinergic anti-inflammatory pathway is a reflex of the parasympathetic nervous system, converging on the α7 nicotinic acetylcholine (α7nAChR) at the surface of macrophages. Signaling through the receptor blocks NF-kB activation, thus cytokine secretion. Receptor activation has other effects on macrophages, including modulating their migration to …

College Commute Distance And Retention For First-Time, Community College Freshmen, Michael O'Hagan

Electronic Theses and Dissertations

The purpose of this non-experimental, quantitative correlational study was to investigate whether any significant relationships existed between one-way student commute distance and retention for first-time, community college freshmen. Additional student success metrics such as three-year graduation rates, enrollment status, credit hours attempted and completed, and GPA were also analyzed for any possible relationship with commute distance.

Archival student data were collected from the participating institution, a public community college in the southeastern United States with four separate instructional site locations. This study followed the incoming class of 2016, entering in the fall semester, through the end of their third year, …

A Bridge Between Graph Neural Networks And Transformers: Positional Encodings As Node Embeddings, Bright Kwaku Manu

Electronic Theses and Dissertations

Graph Neural Networks and Transformers are very powerful frameworks for learning machine learning tasks. While they were evolved separately in diverse fields, current research has revealed some similarities and links between them. This work focuses on bridging the gap between GNNs and Transformers by offering a uniform framework that highlights their similarities and distinctions. We perform positional encodings and identify key properties that make the positional encodings node embeddings. We found that the properties of expressiveness, efficiency and interpretability were achieved in the process. We saw that it is possible to use positional encodings as node embeddings, which can be …

Convolution And Autoencoders Applied To Nonlinear Differential Equations, Noah Borquaye

Electronic Theses and Dissertations

Autoencoders, a type of artificial neural network, have gained recognition by researchers in various fields, especially machine learning due to their vast applications in data representations from inputs. Recently researchers have explored the possibility to extend the application of autoencoders to solve nonlinear differential equations. Algorithms and methods employed in an autoencoder framework include sparse identification of nonlinear dynamics (SINDy), dynamic mode decomposition (DMD), Koopman operator theory and singular value decomposition (SVD). These approaches use matrix multiplication to represent linear transformation. However, machine learning algorithms often use convolution to represent linear transformations. In our work, we modify these approaches to …

Papa Was A Missing Stone: An Exploration Into The Lived Experiences Of Father-Absent African American Women, Jamila Jordan Moody

Electronic Theses and Dissertations

This qualitative phenomenological study examines the lived experiences of adult father-absent African American women to extrapolate from their stories the meaning they attached to the experience and to hear in their own words how they perceived the absence of their father shaped their lives and affected them socially, emotionally, behaviorally, and educationally. Twelve semi-structured interviews were conducted via Zoom audio-conferencing with adult African American women who ranged in age from 20-62 years of age living in various parts of the U.S. The findings of this study revealed that father-daughter relationship bonds held a special meaning to each participant as most …

Synthesis Of Bacterial Glycerophospholipids For Biomembrane Model Studies: A Means To Advanced Biofuels, Felix Adulley

Electronic Theses and Dissertations

To reduce reliance on fossil fuels, sustainable biofuels are being pursued, especially advanced biofuels like 1-butanol that have higher energy content and greater compatibility with existing infrastructure than ethanol. A persistent challenge is the yield-limiting toxicity of biofuels and process solvents, such as tetrahydrofuran, to the microbes that ferment biomass into biofuel. The cell membrane is a focal point of toxicity, and understanding how it interacts with fuels and solvents is key to improving yield. Phospholipid bilayers are the core of biomembranes, and model biomembranes of defined composition provide the ideal platform for biophysical studies. To this end, glycerophospholipids characteristic …

School Nurses And The Sexual Health And Education Of Public-School Students In Tennessee, Amy Wake

Electronic Theses and Dissertations

Tennesseans have been experiencing increasing rates of sexually transmitted diseases since the year 2000. Those rates are highest among those 15- to 24-year-olds. At the same time, Tennessee policy requires the teaching of abstinence as the primary form of sexual health education and emphasized the use of abstinence-only curriculum. The school nurse represents an available resource in the Tennessee public schools. The purpose of the qualitative study was to explore, describe, and interpret the perceptions and experiences of public-school nurses from rural, suburban, and urban areas of Tennessee related to the sexual health and sexual health education of students. School …

E-Cigarettes: What Is The Relationship Between E-Cigarette Usage And Periodontal Disease?, Deborah Rose

Electronic Theses and Dissertations

The dental community has a broad understanding of how traditional combustible cigarettes affect the oral cavity of the dental patient but there is little research available on the effects that e-cigarettes have on the patient’s dental health. Vaping products have been marketed as a healthier option over traditional combustible cigarettes. Since they were first introduced in 2003, very little research has been performed to understand their dental implications. This project was executed to investigate the chemicals associated with these vaping products and how they possibly contribute to the progression of periodontal disease. This research project was conducted with the contribution …

Special Education Teachers’ Emotional Well-Being And Work-Related Stressors In The School Environment, Mallory J. Laravie

Electronic Theses and Dissertations

There is little to no research regarding novice elementary special education teachers (SETs) and their emotional well-being while in the school environment. The goal of this work is to illuminate special education teacher’s voices missing in previous research. Additionally, this research examines the impact of work-related stressors on novice elementary SETs' emotional well-being in the school environment. The theoretical perspective of heuristics is used to illuminate a problem or answer a question about the lived experience of the researcher. Lazarus and Folkman’s (1984) transactional theory of stress and coping framework guided the research question development, data analysis, and presentation of …

Enhanced Content-Based Fake News Detection Methods With Context-Labeled News Sources, Duncan Arnfield

Electronic Theses and Dissertations

This work examined the relative effectiveness of multilayer perceptron, random forest, and multinomial naïve Bayes classifiers, trained using bag of words and term frequency-inverse dense frequency transformations of documents in the Fake News Corpus and Fake and Real News Dataset. The goal of this work was to help meet the formidable challenges posed by proliferation of fake news to society, including the erosion of public trust, disruption of social harmony, and endangerment of lives. This training included the use of context-categorized fake news in an effort to enhance the tools’ effectiveness. It was found that term frequency-inverse dense frequency provided …

Isotopic Ecology Of Bison And Bootherium At Big Bone Lick, Kentucky, Frances Stephenson

Electronic Theses and Dissertations

Big Bone Lick (BBL) is a late Pleistocene and Holocene fossil locality in the Ohio River valley of Kentucky. This study utilized stable isotopes (δ¹³C, δ¹⁸O, and ⁸⁷Sr/⁸⁶Sr) in tooth enamel to reconstruct mobility and diet in Bison, as well as diet in Bootherium bombifrons. Isotopic results from seven Bison and two B. bombifrons are reported. Results suggest Pleistocene Bison and Bootherium occupied different dietary niches. Although both had C3-dominated diets, Bison occupied more open environments than B. bombifrons. Two bison from the late Holocene deposit had diets that consisted …

Parent Choice: Learning Pods Or Public Education During Covid-19 Pandemic, Shari Kinney

Electronic Theses and Dissertations

The purpose of this phenomenological qualitative study was to examine the decision-making process of K-12 parents living in the Appalachian Highlands who chose to remove their children from traditional public schools to join learning pods (sometimes referred to as pandemic pods) during the COVID-19 pandemic. In order to answer this overarching question, the researcher focused her study on two areas: first, what were the possible push factors that influenced parents to remove their children from public schools, and secondly, what were the pull factors that lead parents to choose learning pods over other school choice options. Through the data collected …

Obstetric Violence And Postpartum Adjustment: Exploration Of Risk And Resilience Factors, Hope O'Neill

Electronic Theses and Dissertations

Obstetric violence includes acts of abuse, coercion, or disrespect that occur during the labor process. The present study explores how obstetric violence impacts a person’s postpartum psychosocial adjustment. This study used a subset of data (N = 339) from a larger online study, which attempted to explore multiple facets of a person’s postpartum health. The psychological constructs examined are postpartum depression and postpartum anxiety. Additional constructs assessed were protective and risk factors: self-compassion and medical mistrust. Self-compassion and medical mistrust were examined by using moderation models. Additional analyses were completed using simple regression models to explore whether obstetric violence predicts …

Investigating Saudi Arabia University Teachers’ Level Of Self-Efficacy In The Components Of The Tpack Model, Nouf Alghamdi

Electronic Theses and Dissertations

This study aims to investigate the level of self-efficacy amongst instructors regarding the various components of the TPACK model in their teaching within Saudi Arabia. TPACK represents a viable nexus between technology and educational content, creating successful educational technology integration. Existing research demonstrates a need to study TPACK further in the context of instructors’ level of self-efficacy in the components of the TPACK model (Lee and Kim, 2017). However, this dissertation will investigate instructors’ level of self-efficacy towards utilizing technology in their classrooms. In doing so, the study will adopt a quantitative approach using a survey to gain insights into …

Crossing The Pond: The Influence Of Southern Appalachian Old-Time On Contemporary Irish Music, Amanda Morgan

Electronic Theses and Dissertations

Numerous studies examine Irish traditional music influencing old-time music, but few examine the influence of old-time on contemporary Irish. As our societies become more global, folk music travels faster and becomes more open to influence. Thes influences can be heard in the music of “Alfi” and “Lankum,” two ensembles steeped in Irish traditional music.

This study defines common musical elements of old-time and examines the use of those elements in two recordings: Alfi’s, “Jubilee” and Lankum’s, “The Old Man from Over the Sea.” Much of my data comes from interviews with Irish and American musicians and my own professional knowledge, …

The Experiences Of Students During Covid-19 School Disruptions, Brandi Bullock

Electronic Theses and Dissertations

The purpose of this study was to identify the perceptions of educators with respect to student experiences between March 2020 and February 2021 related to academics, social-emotional health, and safety and security. Data collection strategies included one-on-one interviews with 12 educators in one East Tennessee school district. To qualify for the study, participants had to have taught during COVID-19 schooling disruptions and have taught either 1st, 2nd, 3rd, 4th, or 5th grade in the 2022-23 school year. Data analysis was based on Systems Theory (Laszlo & Krippner, 1998) and Change Theory (Fullan, 2020). The results revealed 5 key themes that …

Art And Interdisciplinary Opportunities For Literacy Instruction: A Qualitative Study To Examine Educator Perceptions In The Rural Setting, Courtney Collins

Electronic Theses and Dissertations

The purpose of this qualitative phenomenological study was to examine educator perceptions of teaching art and implementing literacy and interdisciplinary strategies in rural northeast Tennessee school districts. This study explored interdisciplinary connections and opportunities to expand access to literacy acquisition in the art room. Participants included twelve educators who served as art instructors, literacy specialists, and district supervisors in rural public-school systems in Tennessee's First Congressional District. Data were collected through virtual interviews using a semi-structured format. To qualify for the study participants held positions as elementary or secondary art teachers, literacy specialists, or district supervisors in rural northeast Tennessee …

Strategic Blended Learning: 9-12 Teacher Perceptions Of Digital Engagement Post Covid-19, Brandon D. Weaver

Electronic Theses and Dissertations

This quantitative study examined teacher perceptions on the relationship between technology, student academic behaviors, and performance in blended 9^th-12^th grade settings through pre-COVID-19 Pandemic and post-COVID-19 Pandemic learning experiences. This replicate study explored the relationship between teacher perceptions of student motivation and student autonomy and their relation to technology implementation in face-to-face instruction and blended learning environments. Particularly, this study analyzed how student motivation and student autonomy were affected by blended learning technologies and teaching strategies introduced after the onset of the COVID-19 Pandemic.

Data were examined to investigate teacher perceptions on the relationship between technology, student …

Flavonol Glucosylation: A Structural Investigation Of The Flavonol Specific 3-O Glucosyltransferase Cp3gt, Aaron S. Birchfield

Electronic Theses and Dissertations

Flavonoid glycosyltransferases (GTs), enzymes integral to plant ecological responses and human pharmacology, necessitate rigorous structural elucidation to decipher their mechanistic function and substrate specificity, particularly given their role in the biotransformation of diverse pharmacological agents and natural products. This investigation delved into a comprehensive exploration of the flavonol 3-O GT from Citrus paradisi (Cp3GT), scrutinizing the impact of a c-terminal c-myc/6x histidine tag on its enzymatic activity and substrate specificity, and successfully achieving its purification to apparent homogeneity. This established a strong foundation for potential future crystallographic and other structure/function analyses. Through the strategic implementation of site-directed mutagenesis, a thrombin …

The Impact Of Aces On College Students And Their Major Choice, Britten Harrison

Electronic Theses and Dissertations

Research examining Adverse Childhood Experiences (ACEs) has mostly focused on the long-term effects of these experiences on adult mental and physical health. Less attention has been focused on the impact of ACEs on college student satisfaction, dropout rates, and major choice. The overarching questions for the current study sought to further research by (1) assessing if there is a relationship between the ACE scores of college students and their mental and physical health, (2) if ACEs play a role in student satisfaction or desire to drop out, and (3) determining if there is a connection between students with high ACE …

Once Upon Online: Conversations With Professional Storytellers About Adapting From In-Person To Virtual Storytelling Performance, Leticia Pizzino

Electronic Theses and Dissertations

This study examines how professional storytellers negotiated a new storytelling stage—the videoconference platform—as they pivoted their careers during mandated shutdowns due to COVID-19. An examination of the literature reveals extremely limited research involving either professional storytellers or live virtual storytelling. After interviewing five professional storytellers, I analyzed their stories through narrative inquiry. Analysis revealed that the storytellers negotiated the limitations and affordances of Zoom and adapted their storytelling to successfully connect with their audiences. Through crafting a narrative of their stories, I was able to represent their emotions, unique experiences, and abilities to adapt to the online environment. Their stories …