Digital Commons Network^™

Human-Centric Smart Cities: A Digital Twin-Oriented Design Of Interactive Autonomous Vehicles, Oscar G. De Leon-Vazquez

Theses and Dissertations

Autonomous vehicle (AV) technology is introduced as a solution to improve transportation safety by eliminating traffic accidents caused by human error, which is the leading cause of 90% of accidents. One key feature of AVs is sensing and perceiving their surrounding environment through processing observations collected from the environment. The perception system is essential for an AV to make informed decisions and safely navigate the environment. This study presents an image semantic segmentation algorithm developed in the area of computer vision to improve AV perception. The U-Net-based algorithm is trained and validated using a synthetically generated dataset in a simulation …

Towards Critical Reflexivity In Gifted Education Teacher Preparation, Inna Kruvi

Theses and Dissertations

Ever since the emergence of gifted education in the United States in the beginning of the twentieth century, the concept of giftedness has been used to marginalize, segregate, and exclude students of particular backgrounds from specialized academic programs. Among the factors that contribute to unequal access to gifted education for ethnically, culturally, linguistically, and economically diverse (ECLED) students, teacher bias, deficit thinking, and insufficient teacher preparation have been identified as especially significant (Coleman et al., 2015; DeWet & Gubbins, 2011; Mansfield, 2015). Among various approaches to mitigate underrepresentation of ECLED students, the concept of cultural humility (Tervalon and Murray-Garcia, 1998) …

Smart Homes And You: Iot Device Data Risks In An Ever-Changing World, Autumn Person

Theses and Dissertations

Social media applications are increasingly seen as a national security threat and a cause for concern because they can be used to create user profiles on government personnel and on US citizens. These profiles could be used for big data and artificial intelligence purposes of interest to foreign governments. With the rise of big data and AI being used, foreign governments could use this data for a variety of purposes that can affect normal everyday citizens, not just high value personnel. IoT (Internet of Things) devices that the population uses everyday can also pose the same threat. These devices can …

Elastic Sensing Skin For Monitoring Of Concrete Structures, Emmanuel Abiodun Ogunniyi

Theses and Dissertations

Soft elastomeric capacitors (SECs) are emerging as potential low-cost solutions for monitoring cracks and strains in concrete infrastructure, a crucial aspect of structural health monitoring. Effective long-term monitoring of civil infrastructure can reduce the risk of structural failures and potentially reduce the cost and frequency of inspections. However, deploying structural health monitoring (SHM) technologies for bridge monitoring is expensive, especially long-term, due to the density of sensors required to detect, localize, and quantify cracks. Previous research on soft elastomeric capacitors (SEC) has shown their viability for low-cost monitoring of cracks in transportation infrastructure. However, when deployed on concrete for strain …

Load Determination, Strengthening, And Behavior Study Of Prestressed Concrete Channel Bridge Girders In South Carolina, Elhussien Khaled Elbatanouny

Theses and Dissertations

The South Carolina Department of Transportation (SCDOT) is currently engaged in a multi-year effort to assess the structural integrity of its inventory of over 9,000 bridges. This assessment process is expected to result in an increase in the number of bridges that require load postings, repairs, or replacements across South Carolina. This could potentially lead to adverse economic repercussions due to restricted truck routes, bridge closures, repair work, and the need for bridge replacements. To alleviate the escalating costs associated with these challenges, it is imperative to explore methods aimed at reducing the need for load postings and bridge closures …

Design And Fabrication Of High-Resolution Epitaxial 4h-Sic Metal Insulator Semiconductor Detectors, Omerfaruk Karadavut

Theses and Dissertations

In the last two decades, significant strides have been made in the epitaxial film growth of 4H-silicon carbide (4H-SiC), establishing it as a premier wide bandgap material for radiation detection application under harsh environments. This is primarily attributed to its unique combination of physical properties such as high thermal conductivity, wide bandgap, robust breakdown field, and radiation hardness. Metal/4H-SiC epitaxial layer Schottky barrier diodes (SBDs) have emerged as reliable radiation detectors for harsh environments. However, the utilization of thicker epitaxial layer devices encounters challenges due to the minimum achievable doping concentration in 4H-SiC epitaxial layers, necessitating higher bias voltages for …

Preparing For V2x Deployment: Evaluating Current Anonymity Implementations, And Developing A Framework For Gauging Roadside Unit Networkability, Daniel Arnaudov Sharp

Theses and Dissertations

In this thesis we answer two questions relating to the impending deployment of V2X. We answer, "What is the state of current privacy measures implemented to prevent tracking and promote anonymity?" We answer this by showing that tracking methods used to circumvent changing IDs are possible. We also show through conservative calculations that this problem will not go away on its own and requires direct effort. We also answer, "Is the available production V2X hardware ready for scalable deployment?" To do this we develop a framework for evaluating RSUs and many of their core functions related to deployment, scalability, and …

Who Is Talking About The Children? A Systematic Literature Review Of The Missing And Murdered Indigenous Women Crisis Effects On Children, Angela Marcel Fields

Theses and Dissertations

The ongoing Missing and Murdered Indigenous Women (MMIW) crisis has affected thousands of families throughout the United States and Canada, resulting in probable trauma to children in the families and communities for generations. Although awareness of the crisis has been growing in recent years through avenues such as social media (#MMIW, etc.), little action has been taken to stem the crisis and its effects. The effects of the crisis on the children left behind is a compelling question that is not often addressed in the media, however. A systematic review of the scientific literature from the United States and Canada …

Physical Layer Security With Unmanned Aerial Vehicles For Advanced Wireless Networks, Aly Sabri Abdalla

Theses and Dissertations

Unmanned aerial vehicles (UAVs) are emerging as enablers for supporting many applications and services, such as precision agriculture, search and rescue, temporary network deployment, coverage extension, and security. UAVs are being considered for integration into emerging wireless networks as aerial users, aerial relays (ARs), or aerial base stations (ABSs). This dissertation proposes employing UAVs to contribute to physical layer techniques that enhance the security performance of advanced wireless networks and services in terms of availability, resilience, and confidentiality. The focus is on securing terrestrial cellular communications against eavesdropping with a cellular-connected UAV that is dispatched as an AR or ABS. …

Robust And Uncertainty-Aware Software Vulnerability Detection Using Bayesian Recurrent Neural Networks, Orune Aminul

Theses and Dissertations

Software systems are prone to code defects or vulnerabilities, resulting in several cyberattacks such as hacking, identity breach and information leakage leading to system failure. Vulnerabilities in software systems have severe societal implications, including threats to public safety, financial damage, and even risks to national security. Identifying and mitigating software vulnerabilities is critical to protect organizations and societies from potential threats. Machine learning algorithms have been employed to detect and classify potential vulnerabilities in software source code automatically. However, these algorithms are not robust to noise or malicious attacks and cannot quantify uncertainty in the model’s output. Quantifying uncertainty in …

¿Dónde Vamos?: Exploring Neoliberal Gentrification Within An Oak Cliff Barrio, Luis E. Macias Barrientos

Theses and Dissertations

Barrio working-class Latinx populations have been historically ignored and prevented from creating sustainable roots within their own communities due to the confluence of settler colonialism, neoliberalism, and gentrification. I argue the neoliberal city creates an unsustainable predicament that seeks to marginalize working-class individuals from inner-city life, thus systematically precluding future generations of working-class Latinxs from upward mobility. Little attention has been paid to Texas cities resulting from neoliberal policies perpetuating settler colonialism and gentrification. This thesis draws from theories of neoliberalism and the neoliberal city to explore the effects of gentrification on barrio Latinx geographies. To explore the relationship between …

Did Covid Change Everything Or Nothing At All? Canadian Family Life During The Covid-19 Pandemic, Carlee Guenther Dynes

Theses and Dissertations

In March of 2020, Canada, along with the rest of the world, declared the COVID-19 pandemic a national emergency and responded with society-wide lockdowns, granting exceptions only for essential workers. Canadians across all demographic categories were significantly impacted, and many parents of children under 18 faced the difficult task of caring for their children while simultaneously meeting their work obligations. Using novel in-depth interview data from 30 Canadian parents (in 15 couples) collected between April 2022 and May 2023, I explore three main changes to family life resulting from the COVID-19 pandemic: expanded family-friendly work practices, increased time with nuclear …

You Ca N’T Police Your Way Out Of These Problems: Disregarding The Structural Components Of Community Problems, Kian Spencer Gaines

Theses and Dissertations

Community-Oriented Policing Services (COPS) emerged in response to longstanding criticisms revolving around police accountability and effectiveness. It emphasizes civilian participation in crime-prevention and problem-solving efforts to build trust between the police and minoritized communities with whom they have had an antagonistic relationship. Traditional policing is reactive in nature, with officers acting only after crime has been committed or a call for service has been made; it enforces the law; “legitimizes” use of violence; and emulates military structure and tactics. In this study I describe it as “enforcement” or “crime-fighting policing.” COPS programs are embedded within this structure. Unlike traditional policing, …

Prosecutorial Discretion: District Attorneys, Public Opinion,And The Localized Rule Of Law, Yu-Hsien Sung

Theses and Dissertations

This dissertation addresses three fundamental questions regarding the politics of prosecutorial behavior. Specifically, it examines how the selectors of prosecutors influence prosecutorial decision-making under different selection methods, including electionbased systems and appointment-based systems. By using a political responsiveness framework and utilizing empirical strategies, including an experiment and the construction of prosecutor policy position data, this study offers novel insights into the subject. First, I find that voters care about prosecutors’ issue positions and rely on various cues to identify candidates whose policy positions align with their preferences, even in low-information elections. Second, elections show promise as a mechanism for holding …

Cost-Effective Strengthening And Automated Inspection Of One-Way Precast Reinforced Concrete Flat Slab Bridges In South Carolina, Laxman Kc

Theses and Dissertations

In South Carolina, the South Carolina Department of Transportation (SCDOT) manages 90% of the state's inventory of 9,400 bridges built in the 1950s. With more than 30% of its bridges having been under-designed and experiencing decades of service deterioration, the implications for public safety, the economy, and the transportation system are significant. To prioritize safety and address these concerns, SCDOT is in the process of conducting thorough inspections of bridges, load ratings, and exploring cost-effective and practical methods to strengthen the bridges and reduce load postings. This study is a part of the multi-year research investigation supported by the SCDOT. …

Mitigating Student Anxiety In The Secondary Classroom: A Culturally Sustaining Approach, Erin Hawley Cronin

Theses and Dissertations

This study emerged in response to broader trends of increasing anxiety among schoolchildren and my own observations as a teacher. Suicide is now the second-leading cause of death for youth (Curtin et al., 2022), and anxiety is a known factor in most deaths by suicide (Nepon et al., 2010). Teachers are often the first point of contact for anxious students, but a shortage of counselors in U.S. schools and other systemic barriers prevent widespread access to counseling services (Cratty, 2019). Moreover, identity-based anxieties are often misattributed to aggression or attention-seeking, and punished in school settings, instead of recognized and supported …

Framing Police Brutality: An Analysis Of Newspaper Coverage Of Walter Scott’S Murder, Shamira S. Mccray

Theses and Dissertations

This research analyzes news articles about the killing of Walter Scott in 2015 to determine how frames changed over time and across platforms. Previous studies have found that news coverage of police violence against Black men has not always been fair. Instead, the narrative of official sources, like law enforcement, prove dominant. These same research articles typically focus on the way national news outlets frame incidents like Scott’s.

But this thesis takes a deeper look at how state newspapers framed Scott’s murder. I analyzed the frames and sources found in nearly 200 articles published by The Post and Courier and …

The Use Of Point Cloud Data To Support Concrete Bridge Deck Condition Assessment, Issa Nidal Al Shaini

Theses and Dissertations

Bridge deck condition assessments are typically conducted through visual physical inspections, utilizing traditional contact sensors for Non-Destructive Evaluation techniques such as hammer Sounding and chain dragging which require the expertise of trained inspectors. However, the accuracy of these inspections is limited by the level of deterioration of the bridge deck, as the ability of the inspectors is proportional to the apparent level of damage. This study aims to improve the accuracy of bridge deck inspection processes by utilizing non-destructive evaluation techniques, including the analysis of point cloud data gathered via Light Detection and Ranging (LiDAR) as a geometry-capturing tool. The …

Proportionality V. Categorization: The Issue Of Judicial Balancing Of Rights, Akram Mohamed

Theses and Dissertations

The fact that there is a constant conflict between individual rights and state or social interests has historically provoked the question of how to balance or harmonize such conflicting interests? On what basis shall the legislator or the judge decide in favor of this or that right in his legislation or judgement? Where shall we, for example, draw the line between the right to freedom of expression and the right to protect one’s honor and reputation? How could the legislator find the compromise between the state duty to protect fetus life and its obligation not to interfere with woman’s right …

Examining The Determinants Of Timeliness In Crises Policy Responses: The Case Of Covid-19 In Egypt, Abdelhalim Abdalla

Theses and Dissertations

Timely responses to crises and pandemics play a significant role in navigating and minimizing the adverse impacts of such critical periods on the public and governments worldwide. COVID-19 could show and prove how a single virus originating in a single country can rapidly spread throughout the world, transforming an epidemic in China into a global pandemic. The virus caused more than 6.5 million deaths and around 660 million confirmed cases worldwide, according to the WHO, and sparked the worst economic catastrophe globally in more than a century, as estimated by the World Bank. Evidence suggests that the extent of the …

Exploring Senior Chemical Engineering Students’ Approach To Process Safety Decision Making, Jeffrey Saunders Stransky

Theses and Dissertations

Despite investments in chemical process safety education, evidence suggests that engineers’ decision making may contribute to process safety incidents. Currently, limited educational endeavors in process safety decision making exist, raising the need for a better understanding of how to prepare chemical engineering students for industry decisions. This dissertation fortifies current process safety education through three studies involving senior chemical engineering students. Study One developed the Engineering Process Safety Research Instrument (EPSRI) through exploratory and confirmatory factor analyses. Educators may use the EPSRI to evaluate their students’ moral development. Study Two evaluated a digital process safety game, Contents Under Pressure, on …

Campus Safety And The Impact Of Emergency Alert Systems, Madelyn Elliott

Theses and Dissertations

The purpose of this quantitative study is to understand the impact emergency alert systems have on campus safety for Rowan University members using a quantitative survey. With a need to examine how universities and campus communities react to emergency scenarios, this study will focus on the reactions of those at Rowan University in Glassboro, New Jersey and how they respond to emergency alerts. Through the research completed, we will look into how community members of Rowan University view their safety on the Glassboro campus, the effectiveness of Rowan’s emergency alert systems, when Rowan sends out the emergency alerts, and how …

Navigating The Road To Distributional Social Equity Using Smart Cities Technologies, Annus Azhar

Theses and Dissertations

This dissertation aims to understand the mechanisms behind the adoption of smart cities technologies (SCT) and how they can promote social equity in local communities in the United States. There is a distinct lack of empirical research addressing the methods designed for the promotion of social equity despite their numerous benefits. The present study will address this omission in the scholarship by providing evidence-based insights on how public administrators can leverage SCT to promote distributional social equity through the Digital Era Governance (DEG) and Adoption Theory frameworks. This study also demonstrates the efficacy of applying the Technology Acceptance Model (TAM) …

Patterns Of Distribution And Dispersion Of Silver Carp In An Oxbow Lake, Jordan Besson

Theses and Dissertations

Oxbow lakes are highly productive waterbodies that host multiple life stages of many freshwater aquatic species. Oxbow lakes also provide habitat to Silver Carp (Hypophthalmichthys molitrix), which has enabled populations to grow and expand within the United States. Silver Carp are undesirable because they can compete for resources with native fishes. My goal was to identify patterns of distribution and dispersion of Silver Carp in Moon Lake, Mississippi, to assist and inform precise harvesting of fish. I implanted thirty-five adult Silver Carp with acoustic tags that I released into Moon Lake. I observed that Silver Carp were disproportionately …

Anomaly Detection In Scada Systems Using Machine Learning, Eric Kudjoe Fiah

Theses and Dissertations

In this thesis, different Machine learning (ML) algorithms were used in the detection of anomalies using a dataset from a Gas pipeline SCADA system which was generated by Mississippi State University’s SCADA laboratory. This work was divided into two folds: Binary Classification and Categorized classification. In the binary classification, two attack types namely: Command injection and Response injection attacks were considered. Eight Machine Learning Classifiers were used and the results were compared. The Light GBM and Decision tree classifiers performed better than the other algorithms. In the categorical classification task, Seven (7) attack types in the dataset were analyzed using …

Advancements In Geospatial Monitoring Of Structures, Jordan Keith Baldwin

Theses and Dissertations

The need for advancements in geospatial monitoring of structures has evolved naturally as structures have become larger, more complex, and technology has continued to rapidly develop. Greater building heights generally lead to greater challenges for surveyors, limiting the practical use of traditional measurement methods. For this reason, a new complimentary method was developed and implemented to support elevation monitoring activities during construction of the Salesforce Tower in San Francisco, California. While some studies have explored the use of strain gauges to monitor strain development within individual members, the primary contribution of this work is that it presents a practical and …

Experiences Of Youth In Confinement: Pathways Of Racial-Ethnic Disparities In Juvenile Corrections, Kimbla Newsom

Theses and Dissertations

Of the vast body of research focusing on the racial and ethnic disparities (RED) phenomenon in the juvenile justice system, much of the attention has been at critical points of system contact such as arrest and disposition, while overlooking what happens within critical stages such as confinement facilities. This dissertation investigates the ways in which youth experiences in juvenile confinement facilities differ across racial and ethnic groups. Findings reveal that race and ethnicity is a significant predictor of a youth experiencing more control-oriented interventions, longer lengths of stay in confinement, and fewer connections to reentry services. The dissertation concludes with …

The Language Of Legal Violence: The State’S Role In Silencing Capitalist Dissent, 1877-1915, Jaclene Paolucci

Theses and Dissertations

From the 1870s to the eve of World War I, the United States government enacted a violent and repressive campaign against labor activists and political radicals to protect capitalist interests. The growing alliance between employers and the government threatened American democratic traditions and turned those who challenged the capitalist system into potential enemies of the state.

A Mixed Methods Approach To Police Decertification, Lacey Roughton

Theses and Dissertations

The decertification of police officers is an important mechanism for law enforcement accountability for those who engage in misconduct, however, we have limited knowledge on the processes and outcomes of this form of police accountability. By using a convergent mixed methods design, the purpose of this study was to understand the process in which police decertification occurs and factors that influence decertification decisions in a Southern state. The data for this study included decertification case evidence packets, observational data from decertification hearings, and in-depth qualitative interviews with commissioners involved in police officer decertification case decisions. The findings from this study …

The Relationship Of Graduating Students (Alumni-To-Be)’S Sense Of Belonging And Their Intent To Give Back To Their Alma Mater At A Hispanic Serving Institution (Hsi) In South Texas, Lanlan Alvarado

Theses and Dissertations

Higher education institutions are increasingly relying on funding from the private sector (Council for Aid to Education, 2013) as state funding to higher education has decreased in recent years. Bridging the gap between university financial needs and available funding has become a high priority. In the process, higher education institutions have enlisted their advancement offices towards such bridging efforts by systematically bringing in financial support from donors, alumni, corporations, and foundations.

Funding from private sources fluctuates with changes in the macro-economic environment, laws, and regulations, as well as shifts in philanthropic interests in the public. Alumni giving constitutes a substantial …