Digital Commons Network^™

Nash Equilibrium Strategies For Multicluster Pursuit–Evasion Game With Disturbances: A Prescribed-Time Convergence Approach, Lei Xue, Xian Yu, Yongbao Wu, Jian Liu, Changyin Sun, D. C. Wunsch

Electrical and Computer Engineering Faculty Research & Creative Works

This article investigates the problem of prescribed-time Nash equilibrium (NE) seeking for a multicluster pursuit–evasion game (PEG) subject to external disturbances. To mitigate the impact of disturbances and reach the NE within a user-defined prescribed time, a prescribed-time disturbance observer (PTDO) is devised to estimate and compensate for them. Based on this observation, a novel control algorithm is developed, which facilitates collaboration among multiple pursuers to capture multiple evaders within the prescribed time. It is theoretically demonstrated that the designed algorithm ensures prescribed-time convergence to the NE of the multicluster PEG with disturbances. Finally, numerical simulations are conducted to verify …

Real-Time Multiregional Market-To-Market Congestion Management Through Exchange Of Relief Cost Curve, Haotian Chen, Yonghong Chen, Jose Daniel Lara, Jarrad Wright, Matthew Bossart, Sebastian De Jesus Machado, Rui Bo

Electrical and Computer Engineering Faculty Research & Creative Works

This paper introduces a novel method for multiregional market-to-market (M2M) coordinated congestion management. It identifies shortcomings in existing M2M approaches, where Regional Transmission Organizations (RTOs) exchange shadow prices and relief requests to optimize congestion relief allocations across interconnected regions. Two methods are proposed to enhance flow and price convergence. The first method proposes that both Regional Transmission Organizations (RTOs) use state-estimator flows directly to determine relief requirements, eliminating delays and potential oscillations caused by using market flows calculated from the prior period under existing M2M approach. The second method involves exchanging transmission relief cost curves, enabling each RTOs to integrate …

Transformer-Customer Relationship Identification Based On Load-Switching Fluctuation Characteristics Considering Same-Feeder-Adjacent-Transformer Condition, Yanan Zhang, Gan Zhou, Yuyuan Liu, Wei Gu, Yanjun Feng, Yujue Wang, Rui Bo

Electrical and Computer Engineering Faculty Research & Creative Works

Accurately identifying the connectivity between transformers and downstream three-phase customers in low-voltage distribution networks is challenging, because voltage curves of different phases and nearby nodes can be weakly distinguishable, especially when adjacent transformers on the same feeder serve geographically close customers with highly similar voltage curves. This paper proposes a novel method based on load-switching fluctuation characteristics recorded by smart meters. By extracting localized current and voltage fluctuations and establishing correlation matching, the method overcomes the limited discriminability using steady-state measurements. The method operates in two stages: first, switching-induced fluctuation characteristics are extracted and matched to cluster customers by the …

Lidar-Based Framework For Detecting Suspicious Human Activities, Ahd Aljumah, Charalampos Antoniadis, Hakim Ghazzai, Nawfal Guefrachi, Ahmad Alsharoa, Gianluca Setti

Electrical and Computer Engineering Faculty Research & Creative Works

This study explores the development of Human Activity Recognition (HAR) systems capable of identifying suspicious activities to enhance security in public spaces. We propose an innovative solution that integrates LiDAR sensors with deep learning technologies. Our method employs advanced models operating on LiDAR point cloud, PV-RCNN for human detection, and LidarGait++ for classifying activities into categories such as standing or walking (non-suspicious) and sneaking or fighting (suspicious). Due to the scarcity of suitable real-world datasets for training such systems, we utilize a 3D simulation tool, Blender, to create realistic environments and generate labeled point cloud data. This synthetic dataset allows …

A Biographic-Narrative Of The Masquerade Collections Of Alhassan Mahamudu Saliga: Reechoing The Textile Art Future, Kweku Safo-Ankama, Enock Swanzy-Impraim

Research outputs 2022 to 2026

This study explores the biographical narratives of Alhassan Mahamudu Saliga’s masquerade collections. It examines his innovative textile art practices and their integration into Winneba masquerade culture. An in-depth narrative analysis was employed to interpret and construct his life story, facilitating an understanding of biographical data. The researchers employed interviews, observations, and document reviews as data collection instruments. The interviews focused on four key aspects: design concepts, construction techniques, material selection, and the benefits of using recycled materials. The findings revealed that Alhassan Mahamudu Saliga has been a prominent masquerade costume designer from 1984 to 2025. It was discovered that the …

Attitudes And Expectations Towards Acupuncture For Primary Dysmenorrhoea: Findings From A Cross-Sectional Survey In Australia, Weiting Liu, Amanda Towell-Barnard, Khui Hung Lee, Timothy Leen Kang

Research outputs 2022 to 2026

Objective: To describe attitudes towards acupuncture and expectations regarding potential treatment outcomes among women with self-reported primary dysmenorrhoea (PD) residing in Australia. Methods: A cross-sectional, descriptive online survey was conducted to assess attitudes and treatment expectancy using an adapted version of previously published complementary and alternative medicine (CAM) attitude scale and a validated acupuncture expectancy scale (AES). Data were analysed descriptively, with exploratory analysis conducted to support the interpretation of response patterns. Ethical approval was obtained from the Edith Cowan University Human Research Ethics Committee (2023-04471-LIU) and participants provided electronic informed consent. Results: A total of 247 responses were received. …

Challenging The Monopoly Giant: Market Challenger Premium As Competitive Advantages, Cheuk Hang Au, Chih Yuan Chou

Research outputs 2022 to 2026

Market challengers frequently disrupt established incumbents with innovative ideas or novel business models. Yet, they frequently face high entry barriers and the entrenched power of incumbents. Even when challengers provide products or services better aligned with the market, competing effectively can remain difficult, particularly in monopoly-dominated sectors. This paper presents a case study of ViuTV entering Hong Kong’s monopoly-led free-to-air TV market. We identify IFH (innovation, freshness, hope) strategies for challengers to gain competitive advantage, leading to the emergence of a “market challenger premium” as a unique competitive edge. We also examine the role of customer cognitive biases and the …

Crossing Borders For Transformative Professional Learning About Health And Physical Education Policy Through The Policy Process Case Method, Jenna R. Lorusso, Kellie Baker, Chris Clark, Muhammad Jafar, Dylan Scanlon, Laura Alfrey, David Aldous

Research outputs 2022 to 2026

The Policy Process Case Method (PPCM) is a recent innovation for (health and physical) education professionals to transform their complex policy experiences into practical insights. This method engages professionals across roles and geographical borders in sustained reflexive dialogue to collaboratively interrogate their policy experiences through policy theories. In this ∼1.5-year PPCM investigation, our group (i.e. two curriculum officers, one department head, and one researcher, from four nations) engaged in the following process. First, each practitioner shared a policy experience, including advocating for school policy change, developing provincial/state curricula, and implementing provincial/state curricula. The researcher identified relevant policy theories through which …

Customer Participation In Service Recovery: Accounting For The Role Of Customers’ Perceived Control And Empowerment In Hotel Services, Aron O'Cass, Shahin Sharifi, Vida Siahtiri, Atefeh Saniee

Research outputs 2022 to 2026

Customer participation in service recovery is common, yet little is known about how different participation roles shape recovery evaluations. This gap is especially salient in hotels, where recovery often unfolds under time pressure and heightened emotions. We conceptualize participatory service recovery as involving two distinct customer roles: solution identification and solution implementation. Across three studies, we examine how these roles shape recovery satisfaction and whether perceived control and psychological empowerment help shape these effects. Study 1 uses the critical incident technique to identify role-specific participation behaviours and customers' interpretations of their recovery involvement. Studies 2 and 3 use scenario-based experiments …

Dose–Response Association Between Systemic And Dermatologic Glucocorticoid Use And Type 2 Diabetes Mellitus: A Nationwide Case–Control Study, David Vadsholt, Annika V. Kvist, Chano Sandiramoorthy, Joshua R. Lewis, Peter Vestergaard, Johan Røikjer, Nicklas H. Rasmussen

Research outputs 2022 to 2026

Aims: To investigate the association and dose–response between systemic and topical glucocorticoids and odds of Type 2 diabetes mellitus. Materials and Methods: We conducted a nationwide case–control study using Danish registry data from 2013 to 2021. People aged 40 years or older with incident type 2 diabetes mellitus (n = 149 113) were matched 1:3 with controls (n = 447 339) by age, sex and weighted Charlson Comorbidity Index. Glucocorticoid exposure was defined as ≥ 1 prescription within 1 year before the date of diagnosis and ≥ 2 within 3 years and classified as systemic or topical. Conditional logistic regression …

Dropouts And Refusers: Clinicians’ Insights And Initiatives Into Reducing Treatment Attrition Amongst Young People Who Sexually Offend, James L. Finney, Natalie Gately, Suzanne Rock, Jocelyn Jones

Research outputs 2022 to 2026

Sexual offending by young people causes significant harm to victims, families and communities. Treatment engagement and completion are therefore important for reducing future harm; however, young people who drop out of, or refuse to engage in, treatment present a unique challenge for clinicians and justice systems. Drawing on Bronfenbrenner’s (1979) ecological systems theory, this study explored clinicians’ perspectives on the barriers to treatment engagement and completion for young people who have sexually offended in the Australian context. Semi-structured interviews were conducted with clinicians who provided or facilitated treatment for young people who had sexually offended (N = 22). Two major …

Kinship Care And Aboriginal Children With Disabilities In Out-Of-Home Care: “My Boy, I Was His Voice”, Jocelyn Jones, Juliet Brook, Sasha Moodie, Richard Chenhall, Robyn Williams, Cathy Garlett, Katiska Davis, Alison Gibberd, Ben Harrap, Bridgette Mcnamara, Melissa O'Donnell, Sandra Eades

Research outputs 2022 to 2026

Background: Aboriginal and Torres Strait Islander children with a disability are over-represented in child welfare systems worldwide. Despite this, little is known about their involvement with the Australian child protection system or their lived experiences. Method: Led by Indigenous researchers and methodologies, qualitative findings from yarning sessions with 46 kinship carers across Western Australia informed this research. This research is part of the Indigenous Child Removals WA (I-CaRe WA) project. Results: Difficulty accessing disability assessments and diagnoses for children resulted in a lack of access to disability support services and missed opportunities for early intervention. Priority areas for improvement included …

Meta-Analysis Of Dna Methylation Aging Signatures In 17 Human Tissues, Macsue Jacques, Kirsten Seale, Sarah Voisin, Anna Lysenko, Robin Grolaux, Bernadette Jones-Freeman, Severine Lamon, Mandhri Abeysooriya, Itamar Levinger, Carlie Bauer, Adam P. Sharples, Aino Heikkinen, Elina Sillanpaa, Miina Ollikainen, Cassandra Smith, James R. Broatch, Navabeh Zarekookandeh, Linn Gillberg, Ida Blom, Jesse R. Poganik, Mahdi Moqri, Vadim N. Gladyshev, Matthew Taper, Cassandra Malecki, Sean Lal, Nathalie Saurat, Steve Horvath, Andrew Teschendorff, Nir Eynon

Research outputs 2022 to 2026

Epigenetic changes, in particular DNA methylation, accumulate with age across different tissues, but whether these changes follow consistent patterns across different organs remains poorly understood. Here we show, through a meta-analysis of more than 15,000 human methylation profiles spanning 17 tissues, that aging produces both conserved and tissue-specific epigenetic signatures. We identify systemic shifts in methylation levels, increases in methylation variability, and growing molecular disorder across tissues. Network analysis revealed tightly connected gene clusters that are not modified by beneficial interventions, alongside a more modifiable cluster linked to NAD⁺ metabolism, supporting NAD⁺ as a potential therapeutic target in …

Relating To Difficult Weather Through Creative Practice: Responses To Marrugeku’S Cut The Sky, Helena Grehan, Jo Pollitt, O. J.E. Slater, Sam Fox

Research outputs 2022 to 2026

In this paper we argue that performance and the arts invite a deliberate sensorial connection with the body and can support a bodily turn or return, in order to help artists, scholars and communities more broadly, better attune to increasing climate instability, through collaborative, supportive and reflexive storytelling. Drawing on the three “weather” symposia, the paper focusses on the second symposium which featured a keynote presentation by Rachael Swain, co-artistic director of Marrugeku, Australia’s leading Indigenous Intercultural Dance and Performance Company. Responses to Marrugeku’s work Cut the Sky are collectively presented to illuminate what Swain argues are, “Dramaturgies of consequence” …

Service Failures Under The Influence Of Ideological Polarization, Cheuk Hang Au

Research outputs 2022 to 2026

In an era of heightened ideological polarization, characterized by intense divisions in political and social beliefs, both political and business environments face unprecedented challenges. Socio-political risks, historically explored in strategic management, have gained renewed significance as polarization amplifies their impact on business operations and consumer behavior. This paper examines Cathay Pacific as a case study to investigate how ideological polarization influences consumer reactions to service failures and controversies. Using the Belief-Action-Outcomes (BAO) framework, we analyze the interplay between polarization-driven beliefs and anti-brand actions during periods of heightened political tension in Hong Kong. Our findings offer critical insights into the role …

Developing And Evaluating A Multidimensional Measure Of Pride In The Lgbtqia+ Community, Donovan Edward

College of Graduate Studies: Theses & Dissertations

Pride in LGBTQIA+ spaces has thus far been an ethereal concept with no universally agreed-upon definition. Previous literature frequently connects pride to traits such as resilience, comfort, confidence, and identity expression. This is a critical oversight, as most measures of LGBTQIA+ experiences focus on the negative aspects of queer experiences (e.g., vulnerability, victimization) or are created to evaluate non-LGBTQIA+ perceptions of LGBTQIA+ people, falsely characterizing this community in a deficit-based light. In response, this study aimed to offer a holistic definition of pride and develop a psychometrically sound measure of pride stemming from culturally salient expressions by using rigorous analytical …

How Does Language Influence Interest In Psychological Treatment?, Alexis B. Dixon

College of Graduate Studies: Theses & Dissertations

In 2022, approximately 59 million adults in the United States were diagnosed with a mental health disorder, and approximately half received mental health services (NIMH, 2023). Given the number of individuals whose mental health concerns remain untreated, it is vital to investigate mechanisms predicting treatment-seeking behaviors. Health literacy, which influences treatment-seeking, is largely absent from research on barriers to mental health treatment. Health literacy is related to readability, the ease of reading (Adkins & Singh, 2001), and jargon, the technical language used by professionals in a field (Shulman et al., 2020). Health materials are often written at a high reading …

Advancing Interoperability Through Governance And Sustainability: A Qualitative Comparative Case Study Of State Health Information Exchanges In The United States, Karterria Finkley

College of Graduate Studies: Theses & Dissertations

This study presents a comprehensive comparative analysis of state-level Health Information Exchanges (HIEs) across all 50 U.S. states and the District of Columbia, examining how governance structures, consent frameworks, funding models, and technical infrastructure influence interoperability maturity, sustainability, and adoption. Guided by Systems Theory and Donabedian’s Structure Process Outcome framework, the research employs a mixed-methods comparative case design integrating systematic documentary review, qualitative thematic analysis, and a policy-anchored analytic scoring methodology. Structural and policy characteristics were operationalized through standardized ordinal (1-5) metrics and aggregated into composite indices representing governance capacity, consent inclusivity, financial sustainability, and technical readiness. This approach enabled …

Association Between Internet Use For Health Information And Alzheimer’S Disease Diagnosis Among Older Adults With Diabetes In The United States: Examining Racial And Gender Disparities, Henry M. Zeidan

College of Graduate Studies: Theses & Dissertations

This study uses data from the National Health and Aging Trends Study (NHATS) Round 13, collected in 2024, to examine whether internet use for health information is associated with Alzheimer’s disease diagnosis among older adults with diabetes in the United States. Given the rising adoption of digital health, understanding who benefits from online health resources is increasingly important. The research also examines whether these associations differ across racial and gender groups, offering insight into potential disparities in digital health engagement and cognitive outcomes. Findings from this study will inform clinical practice, public health programming, and strategies to ensure equitable access …

Examining How Engagement Strategies Of Principals Influence Teacher Retention In Urban Title I Schools, Bridgette Allen

College of Graduate Studies: Theses & Dissertations

As the teacher shortage continues to rise, it is critical for educational leaders to focus on teacher retention. Principals play a significant role in teacher retention, teacher engagement, and job satisfaction; therefore, they must implement effective engagement strategies to improve teacher retention. The purpose of this basic qualitative study is to explore how engagement strategies employed by principals at urban Title I schools contribute to teachers’ decisions to remain at these schools. The research question for this study examines teachers’ perspectives on how the engagement strategies used by their school principals influence their decision to remain in an urban Title …

Exploring Teacher Perceptions: A Comparative Analysis Of Departmentalized And Self-Contained Instructional Models In First And Second Grades, Jason R. Trotter

College of Graduate Studies: Theses & Dissertations

This qualitative multiple-case study examined the perceptions of first- and second-grade teachers who have taught in both the departmentalized and traditional self-contained instructional models. The study explored teachers’ perceived advantages and disadvantages of each model, examined how their experiences within each model influenced instructional strategies and classroom management approaches, and assessed their perceived impacts on student engagement and learning outcomes. Each grade level was a bounded case. This study was conducted at a Title I elementary school in Southeast Georgia, where both models were implemented.

Guided by social constructivism, semi-structured interviews were conducted with seven teachers (four first-grade and three …

Staff Perceptions Of The Roles, Responsibilities, And Effectiveness Of School Resource Officers In Ensuring School Safety, Jana B. Collins

College of Graduate Studies: Theses & Dissertations

School safety remains a critical concern in education, particularly in rural settings where resources, staffing, and community dynamics may differ from urban and suburban environments. The purpose of this quantitative study was to examine staff perceptions of the roles, responsibilities, and effectiveness of school resource officers in maintaining and enhancing school safety within a rural school system. A researcher-designed survey using a 4-point Likert scale was administered to teachers and staff members (N = 417). Descriptive statistics summarized overall staff perceptions, and analyses of variance (ANOVAs) examined differences based on demographic and professional characteristics. Findings indicated that staff generally …

Extracurricular Activities' Influence On High School Students' Academic Achievement, Michael Jones Jr

College of Graduate Studies: Theses & Dissertations

This quantitative study investigates the relationship between participation in extracurricular activities and academic achievement among high school students, as measured by Grade Point Average (GPA). This study uses a cross-sectional research design to analyze GPA data from Greenbrier High School in Evans, Georgia. Greenbrier is a part of the Columbia County School District and serves approximately 2,000 students. Historical data were collected from 2024-2025 school records and analyzed using t-tests and ANOVA to compare the impact of ECAs on academic achievement. The study analyzed differences in academic performance based on (a) participation versus non‑participation in ECAs, (b) the type of …

The Efflorescence Of Apocalypticism (Imminent & Prepping Beliefs): Considering Informational And Motivational Regulatory Mechanisms, James T. Good Mr.

College of Graduate Studies: Theses & Dissertations

In the last quarter of the 21st century, apocalyptic beliefs emerged in scholarly and lay representations notably doubling over the last decade. With nearly forty percent of United States citizen reporting this belief, unfulfilled questions arose: What drives discrepancies in beliefs of an imminent end of the world? Additionally, what drives beliefs in the need to prepare for an end of the world? These individual questions were examined together in this study using Construal Level Theory (CLT) and Regulatory Focus Theory (RFT) in an attempt to identify how psychological mechanisms are significantly affecting the fluctuations, in these self-reported beliefs. A …

A Unified Automated And Explainable Ai Framework For Drug Discovery, Clinical Diagnostics, And Public Health Data Prediction, Lord Coffie

College of Graduate Studies: Theses & Dissertations

This thesis investigates the development of automated, explainable artificial intelligence systems to improve automated scientific discovery, clinical diagnostic support, and public health decision-making. Three independent yet thematically aligned studies were conducted across cheminformatics, radiology, and population health. Study A introduces an automated and explainable machine learning pipeline for Quantitative Structure–Activity Relationship (QSAR) modeling using RDKit-derived molecular descriptors. The pipeline performs systematic preprocessing, consensus-based feature selection (mutual information, random forest importance, RFECV), and benchmarks six supervised models—Random Forest, XGBoost, Support Vector Machine, Balanced Random Forest, EasyEnsembleClassifier, and a blended meta-ensemble, achieving AUC = 0.90 and accuracy = 0.83, while ensuring interpretability …

Varying Dna Methylation Patterns In The Florida Sand Skink (Plestiodon Reynoldsi) In Relation To Fire Histories, Victoire Hj Litre

College of Graduate Studies: Theses & Dissertations

Epigenetics is the study of changes in phenotype not caused by changes in DNA sequence. DNA methylation is the most well-studied epigenetic mechanism in an ecological context. Reptiles use DNA methylation to respond to environmental stressors and differences among habitats. The Florida Sand Skink (Plastidome reynoldsi) is federally listed as a threatened species. They are endemic to the threatened, fire-dependent Florida scrub habitat. As they persist in burned habitats, the Florida Sand Skink must be able to rapidly respond to wildfires. To better understand how the Florida Sand Skink adjusts to fire-driven habitat changes, it is important to …

A Real-Time Autonomous Mobile Robotic System For Crack Detection And 3d Laser Profiling In Construction Using Two-Stage Deep Learning, Emmanuella Ogun

College of Graduate Studies: Theses & Dissertations

This thesis presents an autonomous mobile robotic system that integrates real-time visual crack detection with laser-based three-dimensional profiling for building inspection. The system coordinates SLAM-based navigation, deep learning perception, and manipulator-guided measurement within a unified ROS 2 framework, enabling scan-on-demand workflows where laser profiling occurs selectively at visually detected defect locations. The detection pipeline employs a two-stage architecture combining U-Net semantic segmentation with Pix2Pix residual refinement, achieving 73.9% mean intersection-over-union and 76.4% F1-score on the CrackSeg9k benchmark while maintaining 16 frames-per-second real-time throughput. Real-world validation demonstrated 95% detection success on 80 campus images under challenging conditions. The profiling subsystem utilizes …

Ai-Driven Real-Time Detection Of Zero-Day Browser Exploits Using Webassembly-Based Instrumentation, Temitope Damilola Elijah

College of Graduate Studies: Theses & Dissertations

The rapid evolution of web browsers into fully fledged application execution environments has significantly expanded their attack surface, making them prime targets for sophisticated zero-day exploits that evade traditional signature-based security mechanisms. To address this challenge, this research proposes an AI-driven framework for real-time detection and analysis of zero-day exploits in web browsers by integrating browser-level telemetry monitoring, unsupervised anomaly detection, and large language model–based threat interpretation. The framework introduces a lightweight WebAssembly telemetry agent embedded within the browser runtime to capture low-level execution behaviors, including WASM module instantiation, memory growth patterns, network interactions, and runtime API activity. These telemetry …

Celebrities, Personalities, And Drinking Styles, Madeleine Krueger

College of Graduate Studies: Theses & Dissertations

This study replicated and extended the findings of Hill et al. by examining the influence of sociocultural factors, vulnerable and grandiose narcissism, and related psychological variables on drunkorexia behaviors. The replication was expanded to include body dissatisfaction and celebrity worship, as prior literature suggests these variables may be strongly associated with disordered eating and alcohol-related compensatory behaviors. Results indicated that body dissatisfaction emerged as a significant predictor of drunkorexia, supporting previous research that links negative body image with maladaptive weight-control behaviors surrounding alcohol consumption. Several limitations should be noted, including the use of a single-university sample, reliance on a cross-sectional …

Recruitment Strategies For Rural Black Students At Georgia Colleges And Universities: From An Admissions Counselor Perspective, Jayde B. Nelson

College of Graduate Studies: Theses & Dissertations

This dissertation explores the recruitment practices of admissions counselors at colleges and universities in the state of Georgia, with a focused lens on their efforts to engage and enroll Black students from rural high schools. The study investigates how geographic isolation, racial identity, and systemic inequalities converge to shape the college access landscape for underrepresented students in rural communities. Using a qualitative approach grounded in Culturally Responsive Leadership as the theoretical framework, this research examines the strategies, barriers, and institutional priorities that influence outreach efforts and recruitment outcomes. By analyzing admissions counselor perspectives and institutional approaches, the study found that …