Digital Commons Network^™

Ai-Driven Approach For Diagnosis Of Renal Transplant Rejection Based On Biomarkers Identification And Integration., Israa Sharaby

Electronic Theses and Dissertations

They kidney is a vital organ for which humans are fortunate to find a spare through transplantation to sustain critical body functions, offering a hope to those struggling with renal failure. Kidney transplant procedure is the optimal treatment for people who suffer from end-stage renal failure. However, there are posed challenges due to the risk of immune rejection and the limited availability of donors. Early detection of renal rejection can provide timely intervention and accurate diagnosis that are critical to improve the transplant outcomes. This study explores the innovative approaches for addressing the current challenges through biomarkers identification, imaging techniques, …

Detecting Anomalies In Dynamic Attributed Graphs: An Unsupervised Learning Approach, Austin Hamilton

Electronic Theses and Dissertations

Dynamic attributed graphs, which evolve over time and hold node-specific attributes, are essential in fields like social network analysis, where anomalous node detection is a growing area. Vehicular social networks (VSNs), a subset of these graphs, are ad hoc networks in which vehicles exchange data with one another and with infrastructure. In this dynamic context, identifying anomalous nodes is challenging but crucial for maintaining trust within the network. This work presents an unsupervised deep learning approach for anomalous node detection in VSNs. This model achieved an accuracy of 71% while detecting synthetic anomalies in a simulated network based on real-world …

Landslide Inventory And Unstable Slope Monitoring Along Highways In Eastern Tennessee, Robert Mcsweeney

Electronic Theses and Dissertations

This research introduces an unstable slope management program (USMP) for Tennessee based on federal slope management standards, along with improved methods for landslide monitoring with unmanned aerial systems (UAS) lidar and photogrammetry. In mountainous regions, monitoring slope hazards is a critical function of transportation management. A mobile field assessment form created with Survey123 was used to collect 22 unstable slope ratings in eastern Tennessee. Location points were appended with photographs, notes, and site information. Landslide scores ranged from 325 (Fair) to 1005 (Poor). UAS monitoring of a slow-moving soil landslide along I-40 near Rockwood, TN, produced high-resolution lidar and photogrammetry …

Latinx Sleep Health Disparities In Primary Care: The Role Of Patient-Provider Communication, Amy L. Fraire

Electronic Theses and Dissertations

Poor sleep is linked to various adverse health outcomes, and Latinx often experience shorter and poorer sleep relative to non-Hispanic whites (NHWs). Despite growing attention to racial/ethnic sleep health disparities, there is a notable dearth in the literature on patient-provider communication about sleep (Sleep Communication) during primary care visits, particularly among Latinx patients. To address this gap, this study provides initial insights into the incidence of Sleep Communication among Latinx and NHW primary care patients (N = 210), as well as if patient race/ethnicity and Sleep Communication collectively relate to patient satisfaction with their PCP or perceptions of culturally sensitive …

Paycheck-To-Paycheck: How Public Service Loan Forgiveness Inhibits Generational Wealth Attainment For Black Women, Ashley Patrice-Rose Sherman

Electronic Theses and Dissertations

Black women who attend college in the United States are more likely to borrow to cover the cost of attendance and carry the largest amount of student loan debt than any other racial and gender group. Federal student loan borrowers are encouraged to work in public service to take advantage of the Public Service Loan Forgiveness Program (PSLF), an income-driven repayment program established by the College Cost Reduction and Access Act (CCRAA) of 2007. PSLF offers total debt relief after ten years of uninterrupted full monthly payments based on an income-driven repayment plan. The significance of this qualitative study will …

Housing Policy And Eviction: An Iterative Process., Oleksandra Maksymivna Belinova

Electronic Theses and Dissertations

Previously, eviction has been perceived as a legal problem rather than a social issue. Previous literature examines eviction as a social problem and the role of program administrators in policy implementation. Through a mixed-methods study of in-depth semi structured interviews and secondary descriptive analysis of eviction data, this study serves explores program administrators’ perspectives on housing policy and eviction practices and the impact these perspectives have on policy implementation and eviction prevention. The results indicate that program administrators view eviction as a legal phenomenon influenced by housing market dynamics with eviction prevention efforts limited by data collection and the lack …

Coproduction Revisited: From Theory To Practice., Brenton Clarke Hereford

Electronic Theses and Dissertations

Coproduction, or the interaction of citizens with their public service provider, has been used in policy responses to a myriad of service delivery problems, especially policing. This dissertation uses a three-manuscript approach to revisit coproduction both as a theory and a practice. The first manuscript tracks the evolution of coproduction as a theory from three different disciplines: economics, urban theory, and public administration. In addressing the three disciplines, the manuscript explains what broadly united the coproduction literature and the differences that hindered the early development of the concept. It concludes with how the concept is used today, and how future …

Trust, Transparency, And Transport: The Impact Of Privacy Protection On The Acceptance Of Last-Mile Drone Delivery, Jurgen Heinz Famula

Electronic Theses and Dissertations

A common set of problems commercial delivery companies face is finding ways to increase the efficiency and reliability of the “last mile” of a package’s journey, all while reducing operating costs. This need for efficiency has driven many companies to explore using unmanned aerial vehicles (UAVs), or drones, to get packages to their final destination. Although UAVs have great potential to help increase efficiency in commercial package delivery, this comes at a potential cost to the privacy of people who intersect the flight paths of these unmanned vehicles. This thesis explores the effect of a mobile phone application for commercial …

Reimaging Safety After Sexual Violence: A Qualitative Exploration Of Survivors' Experiences With Formal And Informal Crisis Response Networks., Hallie Ruth Decker

Electronic Theses and Dissertations

Sexual violence (SV) is a highly prevalent public health and human rights concern impacting communities across the United States. SV is associated with a myriad of adverse physical, reproductive, sexual, mental, behavioral, financial, and social health outcomes which may be acute or chronic. Health challenges associated with post-traumatic stress and post-traumatic stress disorder are particularly common among victims and survivors of SV. Engagement in early psychological/psychosocial intervention strategies may prevent or reduce PTSD-related symptomatology after experiencing an SV encounter. Despite the availability of crisis response and support options to support individuals who have experienced SV, significant barriers exist across social …

Radon Environmental Health Literacy In Northeast Tennessee, Kawther Al Ksir

Electronic Theses and Dissertations

This dissertation explored the multifaceted issue of radon exposure and its connection to lung cancer, focusing on knowledge gaps and proposing mitigation strategies. Despite extensive research, inconsistencies persist in understanding the health impacts, public awareness, and effective mitigation of radon, particularly in regions like Tennessee that are disproportionately burdened by high radon levels. This work addresses this gap by integrating findings from three distinct studies: a scoping review, a cross-sectional survey, and a policy analysis.

The review examined national literature about residential radon exposure, revealing variations in exposure levels and conflicting evidence regarding the risk of lung cancer. The cross-sectional …

Developing A Suitability Model And Feasibility Report For The Tennessee Mesonet, Tristan Holmes

Electronic Theses and Dissertations

Mesoscale networks, also known as Mesonets, are advanced environmental monitoring systems that consist of multiple high-quality weather stations that collect meteorological data at frequent intervals (5 minutes or less). Tennessee currently lacks a Mesonet system, and this study identifies suitable and feasible locations for stations in all 95 counties. Layers needed to develop the suitability model included land cover, road centerlines, elevation, flood zones, building footprints, and hydrologic soil types. Geospatial analysis techniques were used to process and combine these layers to identify suitable areas. Once suitable areas were determined, a feasibility assessment that examined land ownership, accessibility, and cell …

Data-Driven Approaches For Enhancing Power Grid Reliability, Behrouz Sohrabi

Electronic Theses and Dissertations

This thesis explores the transformative potential of data-driven approaches in addressing key operational and reliability issues in power systems. The first part of this thesis addresses a prevalent problem in power distribution networks: the accurate identification of load phases. This study develops a data-driven model leveraging consumption measurements from smart meters and corresponding substation data to reconstruct topology information in low-voltage distribution networks. The proposed model is extensively tested using a dataset with more than 5,000 real load profiles, demonstrating satisfactory performance for large-scale networks. The second part of the thesis pivots to a crucial safety concern: the risk and …

Examining The Influence Of Adult Mentors On Fostering Prosocial Behaviors Among Teens, John H. Weaver Iii

Electronic Theses and Dissertations

This dissertation addressed a critical public health concern stemming from the prevalence of antisocial behavior among U.S. teenagers. The study specifically tackled the lack of information regarding the components of an effective risk-reduction mentoring program for teens. The primary aim was to explore how young adult alums of a central Florida mentoring program articulated the influence of mentoring relationships that have shaped their attitudes and perceptions concerning prosocial behavior during adolescence. As a bounded qualitative case study, this research employed semistructured interviews with 11 young adult mentees from a mentoring program. Additionally, a focus group of five adult mentors who …

Infrasound From Tornadoes: Theory And Experiment, Bin Liang

Electronic Theses and Dissertations

Previous field experiments support the claim that a tornado can radiate discernible infrasound between 0.5−10 Hz. The physical mechanisms of tornado sound generation are still not fully understood although several potential mechanisms have been proposed. In this dissertation, a new mechanism based on vortex sound theory is examined analytically and numerically. Basically, rotation of the non-axisymmetric vorticity field in tornadoes can produce dominant low-frequency infrasound less than 2.0 Hz. This finding is based on a detailed analysis of calculating infrasound emitted from two numerical models of tornadoes using large eddy simulation (LES), called the baseline model and the eddy injection …

Designing Ris-Assisted Uav 3d Trajectory Using Deep Reinforcement Learning, Linsong Li

Electronic Theses and Dissertations

Unmanned aerial vehicles (UAVs) are increasingly employed as temporary base stations or access points to facilitate data transfer between ground terminals (GTs). However, in urban environments, UAV-GT communication links often face challenges due to obstructions from buildings and other obstacles, resulting in reduced data transfer efficiency. Reconfigurable intelligent surfaces (RIS) provide a promising solution by reflecting signals to enhance communication quality between UAVs and GTs. This thesis addresses the critical challenge of responsive UAV trajectory optimization in RIS-assisted communication networks. A novel approach is proposed, integrating federated learning with reinforcement learning techniques, specifically Double Deep Q-Network (DDQN) and Deep Deterministic …

Moderation In Online Incel Forums: A Comparison Of Warning Behaviors, Katherine Elizabeth Norris

Electronic Theses and Dissertations

Incels constitute an online community characterized by shared negative perspectives concerning masculinity, women, and societal norms. Platforms such as Twitter and Reddit have implemented content moderation measures aimed at curtailing the dissemination of incels' ideologies, which often promote violence and suicidal ideation. To observe the influence of content moderation on incel discourse, this study examined posts from two distinct incel forums: one subject to moderation and another without such restrictions. Employing thematic analysis, common themes within the posts were identified, and the occurrence of negative language was quantitatively assessed. Findings revealed that the moderated forum exhibited a higher prevalence of …

Functional Cynicism, Michelle Fried

Electronic Theses and Dissertations

Trait cynicism, or “cynical hostility” as measured by the Minnesota Multiphasic Personality Inventory’s Cook-Medley Scale, is defined and studied as characteristics associated with psychopathology, interpersonal conflict, and negative health outcomes including heart disease and cognitive decline. Likewise, “organizational cynicism” is operationalized in industrial/organizational psychology for the purpose of describing and identifying an undesirable employee type in the workplace. This research proposes an alternative assessment. It reconnects cynicism with its roots in ancient philosophy by asking if cynical attitudes, despite their negative valence ascribed in the modern literature and conventional opinion, may serve a practical purpose. This study of Functional Cynicism …

Understanding The Cultural Perceptions And Beliefs Of Law Enforcement About Officer Wellness: A Focused Ethnography, Carrie Hintz

Electronic Theses and Dissertations

Law enforcement is recognized as one of the most stressful and high-risk occupations in the world. This study explored the cultural perceptions, beliefs, and values of law enforcement officers (LEOs) about their wellness. Methodology: This focused ethnography included observations and individual interviews of LEOs in the state of Nevada, USA. Leininger’s four phases of qualitative data analysis were used to analyze the data. Results: Thirty-one LEOs participated, representing 7 law enforcement agencies. Three themes were identified: 1) the badge is omnipresent in officers' lives, affecting every aspect of their world; 2) a balanced approach to officer health is important; …

A Case Study Of The Political Determinant Of Health On The Public Health Crisis Of Malaria In Nigeria, Bisola M. Olumegbon

Electronic Theses and Dissertations

Abstract

Globally, there were about 229 million cases of malaria in 2022. The sub-Saharan African region accounted for 92% of the reported cases and 94% of deaths. Nigeria had the highest number of malaria cases and deaths, representing 27% of global cases. This scholarly project was a case study guided by the political determinants of health. Triangulation of data using thematic analysis was used to identify the political determinants of malaria in Nigeria and to understand how the concept of interaction contributes to the persistence of the disease. The analysis involved a deductive and inductive approach based on the literature …

Assessment Of Facultative Sulfur Reducing Bacteria In Acidic And Circumneutral Passive Remediation Systems Using A Novel Culturing Technique, Natalie Lamagna

Electronic Theses and Dissertations

Pollution resulting from abandoned mine drainage (AMD) is widespread across the nation and impacts thousands of miles of watersheds in Pennsylvania alone. AMD contaminants pose hazards to ecosystems and to human health by lowering the pH and by suspending toxic heavy metals in water. Sulfur reducing bacteria (SRB) are known to remove metals and sulfur species from mine drainage through the formation of metal sulfide precipitates and have been documented to raise the alkalinity of water. Therefore, it is necessary to understand the environmental conditions in which these microorganisms survive. Environmental samples were collected from a circumneutral and an acidic …

The Transformation: Teaching Critical Thinking And Clinical Decision Making In Nursing Education, Winifred Ferguson Adams

Electronic Theses and Dissertations

Abstract

The profession of nursing has recognized in the past 20 years the need for graduate nurses to enter the profession prepared to care for complex medical patients in an ever-changing healthcare environment. It has become a major challenge for nurse educators to provide students with adequate didactic and clinical education in nursing. The overall purpose of this project was to help nurse educators accept the challenge required to make the radical transformation in education. Faculty participated in the measurement of self-efficacy pre and post-exposure to teaching strategies related to (1) critical thinking, (2) clinical judgment, and (3) clinical reasoning …

Dynamic Scene Understanding: Pedestrian Tracking From Aerial Devices., Abdelhamid Bouzid

Electronic Theses and Dissertations

Multiple Object Tracking (MOT) is the problem that involves following the trajectory of multiple objects in a sequence, generally a video. Pedestrians are among the most interesting subjects to track and recognize for many purposes such as surveillance, and safety. In the recent years, Unmanned Aerial Vehicles (UAV’s) have been viewed as a viable option for monitoring public areas, as they provide a low-cost method of data collection while covering large and difficult-to-reach areas. In this thesis, we present an online pedestrian tracking and re-identification from aerial devices framework. This framework is based on learning a compact directional statistic distribution …

Fear Of Becoming A Victim Of Crime On A College Campus: A Visual And Factorial Experimental Design Survey Analysis Of Location And Demographic Factors., Nancy Steinmetz

Electronic Theses and Dissertations

Vanessa LoBue (2013) states that the emotion of fear, “a signal of impending threat” (p. 38) is common among mammals. For over five decades, there has been substantial research into what in society, or our communities, makes us fearful. It is this author’s intention to examine how college students’ fear of crime or fear of victimization may be heightened or intensified by specific factors that are commonplace on college campuses and areas adjacent to those campuses. Nicole Rader (2004) argues that the fear of crime discourse needs to be expanded to a larger “construct” called “the threat of victimization” (p. …

Resident Assistants As Students And Personnel During The Covid-19 Pandemic, Amy Korstange

Electronic Theses and Dissertations

This qualitative phenomenological study explored the experiences of students working as resident assistants (RAs) in college or university housing departments during the March 2020 COVID-19 shutdown. Twelve current and former RAs participated in qualitative interviews exploring their experience as their institutions shut down because of COVID-19. Three broad categories of experience were found: RAs who were considered essential employees and required to work during the pandemic, RAs who were given the option of working during the pandemic, and RAs who were laid off at the beginning of their pandemic. The central research question was regarding the perceived experience of RAs …

A Qualitative Case Study On How The Transition To Remote Learning Affected Elementary Language Arts Instruction During The Covid-19 Pandemic, Matthew B. Bergman

Electronic Theses and Dissertations

Emergency remote learning (or remote learning) altered K-12 instruction and occurred during the COVID-19 pandemic in the spring of 2020. Mandatory lockdowns and social distancing efforts transformed face-to-face instruction into a new pedagogical model called emergency remote learning or remote learning. In this qualitative case study, I aimed to understand how third-grade language arts instruction was affected during the transition to remote learning during the COVID-19 pandemic from the perspective of general education teachers, learning support teachers, school administrators, and residential care providers. Additionally, the researcher used Moore’s (1997) transactional distance theory to investigate which strategies (methods, materials, and technologies) …

A Content Analysis Of State-Level Restorative Justice Statutes, Mason Karlyn Myers

Electronic Theses and Dissertations

Restorative justice programs have garnered attention as a potential policy solution to address critical issues within the criminal justice system, such as mass incarceration, re-victimization, and costliness. However, effective implementation of these programs faces various challenges, including communication gaps, inadequate program design, and implementation issues. These challenges may be further exacerbated by the lack of consistent policies at the state level guiding restorative justice practices. Surprisingly, limited research has been conducted to examine restorative justice statutes at the state level. In response to this gap in the literature, this study analyzes the restorative justice policies of all fifty states, including …

Examining The Impact Of The Covid-19 Pandemic On Violent Crime In The City Of Pittsburgh, Brittany Urban

Electronic Theses and Dissertations

The goal of this research is to examine patterns of Part I crimes [including Part I Person/Violent: Homicide, Rape, Aggravated Assault, and Robbery, and Part I Property: Burglary, Larceny-Theft, Motor Vehicle Theft, and Arson, as defined by the Federal Bureau of Investigation (FBI) Uniform Crime Reporting (UCR) Standards] in The City of Pittsburgh, framing the COVID-19 pandemic as a major stressor that Robert Agnew’s General Strain Theory suggests may lead to increased opportunity for crime, due to the perceived unjustness of the associated lockdown orders and potential incentive for criminal coping (Agnew 1992). This descriptive analysis is based primarily upon …

Understanding Racial Disparate Treatment Of Juvenile Interpersonal Violent Offenders In The Juvenile Justice System Using Focal Concerns Theory., Suzanne Overstreet

Electronic Theses and Dissertations

Disproportionate minority contact (DMC) is a salient issue that has been found at every stage of the decision-making process in the juvenile justice system (Hawkins & Kempf-Leonard, 2005; Kempf-Leonard, 2007; Bishop, 2005; Leiber, Bishop, & Chamlin, 2010; Leiber & Stairs, 1999). Existing research indicates that DMC influences adjudication for drug, property, and personal crimes (Fergusson, Horwood, & Swain-Campbell, 2003; Frazier, Bishop, & Henretta, 1992; Leiber & Jamieson, 1995; Leiber & Mack, 2003; Hawkins & Kempf-Leonard, 2005; Leiber, 2015). Because intimate partner violence (IPV) is a major public health problem and global concern (Djamba & Kimuna, 2008; Goo & Harlow, 2012; …

A Comparison Of The Mental Health Of Police Officers And Correctional Officers In Rural Appalachia, Sierra Thomas

Electronic Theses and Dissertations

The purpose of this study was to explore perceptions of mental health among police officers and correctional officers within rural Appalachia. The main goal of this research was to better understand how the occupational demands of working in the criminal justice field can impact one’s mental health over time. Several research questions were explored, including the prevalence of various mental health problems, associated stressors, the structure of support among officers, and the perceptions of mental health treatment services. Data were gathered through semi-structured interviews with 21 police and correctional officers located in rural Appalachia. Results provided a better understanding of …

Respecting The Ethical Tension Between Surveillance And Privacy In Promoting Public Health And Disease Management, Kamal Althobaiti

Electronic Theses and Dissertations

The recognition of the need to undertake surveillance and to protect privacy is well established. However, the continually changing circumstances and fast-paced development of healthcare today requires a continuing need to respect this ethical tension between surveillance and privacy. Hence, this dissertation is to respect the ethical tension between surveillance and privacy in promoting public health and disease management. This dissertation investigates the ethics of conducting public health surveillance, including the challenges associated with obtaining consent and protecting data from unauthorized access. The dissertation will focus on the ethical consequences of big data, including issues associated with obtaining informed consent, …