Digital Commons Network^™

Karst Sinkholes And Civil Engineering: Overview Of Characterization And Treatment Options From A Geophysical And Geotechnical Viewpoint, Mia Painter, Stephen Welsh

Sinkhole Conference 2026

Sinkholes pose a significant geohazard to civil engineering infrastructure in regions underlain by carbonate karst terrain. Selecting an appropriate stabilization method requires balancing site conditions, infrastructure risk, environmental considerations, and cost, all of which depend on a thorough understanding of the planned or existing infrastructure and subsurface conditions. This paper provides an overview of common sinkhole characterization and stabilization methods used in the Mid-Atlantic and Appalachian regions of the United States from both geotechnical and geophysical perspectives. The application of geophysical methods in conjunction with intrusive investigations is reviewed as a means of reducing subsurface uncertainty and refining treatment designs. …

Sinkhole Hazards, Risks, And Remediation: A Fifty-Year Case Study In New Jersey, Usa, Oladoyin Kolawole, Rita L. Sousa, Christina Comuso, Mohab Hussein

Sinkhole Conference 2026

New Jersey presents a uniquely complex sinkhole and ground subsidence hazard shaped by intersecting geological, industrial, and anthropogenic forces. Sinkhole herein refers primarily to collapse sinkholes, that is, the abrupt or progressive downward failure of the ground surface into subsurface voids, as distinct from solutional closed depressions of purely karst origin. This paper synthesizes five decades (1976-2026) of documented sinkhole and ground subsidence records across the state, examining root causes, societal and environmental impacts, and remediation strategies employed in response to such hazards. The review shows that New Jersey’s hazard is governed by three dominant mechanisms: karst dissolution in carbonate …

Semantic Shields: Automating Critical Infrastructure Defense Via Nlp-Driven Ransomware Profiling, Henry Trowbridge, Ian Zalcberg, Ryan Schley, Carter Yagemann, Natasha Phan, Srikar Maduposu, Vimal Buck

Military Cyber Affairs

Ransomware poses a growing threat to critical infrastructure, where successful attacks can disrupt operational technology (OT) and industrial control systems (ICS) with significant public safety consequences. However, attributing ransomware incidents to specific threat actors remains challenging due to ransomware-as-a-service ecosystems, actor rebranding, and the obfuscation of traditional indicators of compromise. This paper presents Semantic Shields, an NLP-driven attribution framework that leverages BERT-generated semantic embeddings and DBSCAN clustering to profile ransomware actors through the linguistic characteristics of ransom notes. Using a dataset of 295 ransom notes from 189 distinct threat groups, the framework achieved an 87.2% true positive clustering rate and …

Teaching Strategic Intelligence In Political Transition, Henry W. Prunckun

Journal of Strategic Security

Scholarship on intelligence ethics centers on operations, leaving the ethics of intelligence education and capacity-building under-theorized. This article develops retrospective moral reappraisal (RMR): the delayed moral reclassification of earlier teaching as ethically compromised when political transition and new public knowledge recontextualize what that teaching may have enabled. It argues that RMR is a pathway to moral injury because the injurious event is later learning—not the original classroom act—that one’s contribution is now plausibly implicated in harm. Linking RMR to complicity and enabling under uncertainty, the article clarifies how foreseeability, professional role morality, and leverage shape responsibility without requiring causal certainty …

Subspace Decomposition For Spatial Parameter Estimation, Arthur Grik

USF Tampa Graduate Theses and Dissertations

Passive emitter localization is an important capability for wireless sensing, interference detection, and spectrum awareness. Classical timing-based localization methods estimate emitter position from differences in signal arrival time across distributed sensor platforms, but their performance depends on precise receiver synchronization and favorable signal bandwidth characteristics. This thesis investigates subspace-decomposition-based spatial parameter estimation as an alternative approach in which directional information is extracted from coherent antenna-array measurements. This work develops the theoretical foundation and signal-processing framework for angle-of-arrival estimation. Various spatial parameter estimators are presented as supporting array-processing methods before focusing on a well-known subspace-decomposition-based approach called the Multiple SIgnal Classification …

"Does The Penis Lie?": Truth, Sexuality, And Psychocarceral Power, Erin Mcqueary

USF Tampa Graduate Theses and Dissertations

This thesis critically examines the use of penile plethysmography (PPG), or phallometry, in the treatment and management of sex offenders in the late-twentieth century. Using the Florida Mental Health Institute’s 1986-1989 sex offender treatment program as a case study, it asks how phallometry came to be understood as an objective method for uncovering otherwise hidden sexual truths. Instead of focusing only on its appearance and development throughout the second half of the twentieth century, this thesis draws on the work of Michel Foucault to situate phallometric science within a broader history of sexuality and biopower. In doing so, it argues …

In Search Of Protective Factors Against Gun-Carrying For Black Male Youth: A Dissertation- Sectional And Longitudinal Analysis Of Secondary Data, Kevin Edward Antwi

USF Tampa Graduate Theses and Dissertations

This study examines the relationship between risk and protective factors and gun carrying among Black male youth using both individual-level and population-averaged effects. Grounded in the risk and protective factors framework and the ecological systems model, the study explores how protective factors at the individual, peer, school, and community levels influence gun carrying at a single point in time and over time. This research aligns with the Grand Challenges of Social Work by preventing gun violence and informing prevention efforts. Using the baseline and 11 waves of data from the Pathways to Desistance Study, the analysis identifies factors that reduce …

How Location-Allocation Modelling Can Be Used To Site Pet-Friendly Evacuation Shelter Locations For Pet Owners In Hillsborough County, Florida: An Exploratory Study, Sarah A. Shaughnessy

USF Tampa Graduate Theses and Dissertations

Florida has been hit by some of the most destructive tropical cyclones in North America due to its relative location to the Gulf and Atlantic Ocean. Florida’s population growth since the 2000’s and the increased frequency of stronger storms because of climate change have made numerous emergency management leaders throughout the state get evacuation shelter networks established for public safety. However, the existing shelter network in Hillsborough County has become inadequate to satisfy the unprecedented population growth in that specific area since the COVID-19 pandemic and there’s a need for new shelter locations to better accommodate the growth when a …

Policy Brief For Training The Lifeline: Florida Ems Nremt Performance And Program Quality, Florida Center For Emergency Medical Services

Florida Center for Emergency Medical Services Research Reports

Executive Summary

Florida's emergency medical services system depends on a reliable pipeline of well- trained EMTs and paramedics. National Registry of Emergency Medical Technicians (NREMT) first-attempt pass rates serve as a critical benchmark for program quality and workforce readiness. Florida has consistently underperformed relative to national averages, particularly at the paramedic level, raising concerns about the quality and consistency of EMS education statewide and its implications for workforce readiness and public safety.

In 2024, Florida's paramedic programs achieved a 59.9% first-attempt pass rate, nearly 18 percentage points below the national average of 77.9%. This gap represents more than a testing …

Training The Lifeline: Florida Ems Nremt Performance Review 2024, Michael Lozano Jr., Farina Klocksieben

Florida Center for Emergency Medical Services Research Reports

Executive Summary

Florida EMS Training Program Performance: 2025 Report on NREMT Outcomes

Why It Matters

Florida’s EMS system depends on a pipeline of well-prepared EMTs and Paramedics. NREMT
first-attempt pass rates are used as a national benchmark. Florida has long trailed national
averages, especially for paramedics, raising concerns about workforce readiness and public
safety.

Key Findings

EMT Programs (58 programs, 4,773 candidates in the 2024 cohort)

• 69.2% statewide pass rate (3,305 passed).
• Region 2 highest at 80.8%; Region 6 lowest at 63.9%.
• Slightly above the 3-year national average (67%) but below the 2024 national rate
  (77.0%).

Paramedic Programs (44 programs, …

Policy Brief For Crisis On The Frontlines: Recruitment And Retention Challenges In Ems, Florida Center For Emergency Medical Services

Florida Center for Emergency Medical Services Research Reports

Executive Summary

Emergency Medical Services (EMS) in Florida and across the United States are facing an unprecedented workforce crisis. EMS staffing shortages are no longer looming - they are present-day realities that affect the safety and well-being of every community. EMS personnel are the first line of response for medical emergencies, disasters, and public health crises. Yet today, many agencies are struggling to maintain staffing levels due to recruitment barriers, retention challenges, and systemic funding shortfalls. The message is clear: stabilizing the EMS workforce is essential not only for EMS agencies but also for the broader public safety and health …

Policy Brief For Vital Signs: Findings From Florida’S 2024 Ems Workforce Statewide Survey, Florida Center For Emergency Medical Services

Florida Center for Emergency Medical Services Research Reports

Executive Summary

Florida's Emergency Medical Services workforce stands at a critical juncture. The 2024 statewide survey of nearly 50,000 certified EMTs and paramedics reveals both strengths and vulnerabilities that demand immediate policy attention. While Florida's EMS professionals demonstrate strong commitment to their communities and confidence in clinical leadership, significant challenges threaten long-term workforce sustainability.

Most concerning are persistent gaps in compensation satisfaction, high rates of mental health challenges, and troubling retention patterns among early-career providers. These findings suggest that without strategic intervention, Florida may face escalating shortages in emergency medical response capacity, particularly in underserved and rural communities.

This policy …

The Digital Radical: Online Extremism, Propagation, And Terror By Design's Strategic Implications For Homeland Security, Hunter Lacroix, Shevach Berkovits

Journal of Strategic Security

The 'lone wolf' figure has long been central to counterterrorism analysis, representing the trajectory from non-participant to self-directed actor aligned with extremist causes. Traditional frameworks emphasizing in-person networks or online exposure, however, fail to capture the transformation of radicalization in the algorithmic age. The Arab Spring demonstrated the mobilizing power of digital platforms, yet movements like ISIS later weaponized these networks to provide ideology, belonging, and identity to dislocated populations. This article introduces the concept of the Digital Radical—an individual who transitions from passive consumer to active propagator of extremist narratives, sustaining and expanding radical ecosystems in a symbiotic …

Sheinbaum’S Dilemma: Mexico’S Security Choices After Fto Designation, Ghaleb Krame, John P. Sullivan, Magdalena Garcia

Journal of Strategic Security

The US designation of six Mexican cartels as Foreign Terrorist Organizations (FTOs) marks a pivotal shift in bilateral security relations, compelling Mexico to navigate a complex strategic landscape. This study uses game-theoretic modeling, scenario analysis, and Nash equilibria to evaluate three possible responses by the administration of Claudia Sheinbaum: (1) Total Subordination—fully aligning with US counter-cartel efforts, (2) Covert Subordination—secretly integrating US support while maintaining a public stance of sovereignty, and (3) Strategic Resistance—rejecting US intervention in favor of an independent security approach.

New evidence on US-side border corruption and clearer definitions of key terms (joint cross-border operations, intelligence fusion …

Prosecutorial Philosophy And Racial Disparities In Arrest Rates, Carl L. Reeds

USF Tampa Graduate Theses and Dissertations

The prominent issue of racial disparities in arrest in the criminal justice system is well documented. One proposed mechanism for addressing these disparities in the criminal justice system is the emergence of progressive prosecutors. Progressive prosecutors are vastly different than traditional prosecution through the approach to their roles in the criminal justice system. Traditional prosecutors prioritize convictions and punishment, often seeking maximum sentences for defendants and relying on the traditional model of tough-on-crime policies. Progressive prosecutors pledge to reform the criminal justice system by declining to prosecute certain low-level offenses, expanding diversion programs, and explicitly addressing racial and socioeconomic disparities. …

Exploiting Chaotic Antenna Arrays For Rf Fingerprint Authentication And Physical Layer Security In Wireless Communications, Joshua K. Thomas Ranstrom

USF Tampa Graduate Theses and Dissertations

Modern wireless networks support a wide range of applications including consumer devices, healthcare monitoring, industrial automation, smart grids, and military platforms, in which transmitted information is often highly sensitive and subject to stringent confidentiality and integrity requirements. As wireless communication operates over an open broadcast medium it exposes systems to physical layer (PHY) threats such as eavesdropping, in which an adversary passively intercepts transmitted information, and spoofing, in which a forged transmission misleads the receiver about device identity. Cryptographic defenses address both threats but require computational assumptions and key management infrastructure that may not scale to dense or resource-constrained deployments. …

Quantification Of Interfacial Defects In Frp-Strengthened Rc Member Using Non-Destructive Testing Methods, Yuliya Tyrak

USF Tampa Graduate Theses and Dissertations

Externally bonded fiber-reinforced polymer (FRP) composites are widely used to strengthen reinforced concrete (RC) structures. However, the long-term performance of these systems depends on the integrity of the FRP–concrete bond. Interfacial defects such as debonding, delamination, cracking, and voids may reduce structural capacity and are often difficult to detect using conventional inspection techniques. This study investigates the effectiveness of nondestructive testing (NDT) methods for detecting interfacial defects in FRP-strengthened RC members. It explores the potential for automated defect identification using thermal imaging and machine learning.

Laboratory specimens with predefined defects were fabricated and tested using visual inspection (VI), tap testing …

Determinants Of U.S. Manufacturing Firms’ New Location Decisions: What Factors Shape State-Level Entry?, Ye Wana Hlaing, John Schoeneman

Journal of Global Business Insights

The location of new manufacturing facilities is a critical determinant of firm performance and long-term competitiveness in an increasingly dynamic global economy. This decision-making process is complex, shaped by economic, social, geographic, and regulatory conditions. Understanding these factors is essential for policymakers, investors, and firms seeking to design strategies that foster regional development, job creation, and sustainable economic growth. This study examines the key determinants of manufacturing firms’ new-location choices in the United States. Although factors such as land availability, workforce productivity, and regulatory stability are well recognized, the magnitude and mechanisms through which they affect location decisions remain insufficiently …

Hard Hats And Second Chances: A Phenomenological Study Of Employer Support In Construction-Based Reintegration, Christofer M. Pacheco

USF Tampa Graduate Theses and Dissertations

This qualitative phenomenological study examines how formerly incarcerated individuals perceive and experience employer support during workplace reintegration in the construction industry. Although employment is widely recognized as a protective factor against recidivism, post-hire experiences from the perspective of justice-involved employees remain underexplored. Grounded in an interpretivist paradigm and informed by Social Support, Social Learning, and Identity perspectives, the study investigated how structure, self, and environment interact to influence retention, growth, and desistance.

Nineteen interviews were completed with six construction workers in New Mexico who had maintained employment for at least one year following incarceration. Through the use of Seidman’s three-interview …

Florida's Maritime Edge: Built Through Leadership, Ready For What's Next, Tad Schnaufer Ii

GNSI Conference Reports

This report analyzes evolving threats, funding challenges, and strategic priorities for protecting Florida's critical maritime infrastructure in an era of nation-state adversaries, adversarial Al, and complex hybrid threats.

Sharks On The Move: Investigating The Link Between Climate Change And Rising Shark-Human Encounters, Keira E.B. Blakey

USF St. Petersburg campus Honors Program Theses (Undergraduate)

Sharks have long captivated the public imagination, evoking fascination and fear through enduring myths and media portrayals of negative interactions with humans. In recent years, an increase in shark sightings and attacks along the U.S. coastline has prompted scientific inquiry and public concern. This literature review explores the relationship between rising global temperatures and the frequency of shark attacks, focusing on how climate change affects shark behavior, migration patterns, and habitat distribution. Sharks move into warmer waters as ocean temperatures rise, altering migration routes and prolonging active seasons. This increases the likelihood of shark-human encounters, particularly in coastal regions that …

First Report Of A Bat Guano Fire From A Cave In Southeast Asia, Sopark Jantarit, Martin Ellis, Pruet Kalasuwan, Neeranuch Phusunti, Pimonsri Mittraparp-Arthorn, Jiranan Pattano, Arnon Chukamnerd, Turdtun Tong-In, Natthawut Khrueaaunruean

International Journal of Speleology

Fires occurring in cave guano are a rare and unusual phenomenon and the occurrence of such events in Southeast Asia is particularly novel. In this study, we document the first recorded instance of a bat guano fire in a tropical cave at Tham Chao Ram in Sukhothai province, northern Thailand. A bacteriological analysis was made of the guano at the fire site and from a control site within the cave. We give a comprehensive review of global reports on bat guano fires in caves, conduct an initial investigation of the physical factors at the fire site and discuss the potential …

Barriers To Machine Learning Adoption In Regulated Electric Utilities, Donald R. Shiflet Jr.

USF Tampa Graduate Theses and Dissertations

Machine learning (ML) technologies have the potential to revolutionize regulated electric utilities by improving operational efficiency, enabling predictive maintenance, and optimizing energy management. Despite these advantages, the adoption of ML in this sector lags other industries due to technical, organizational, and regulatory barriers. This research, grounded in the Technology-Organization-Environment (TOE) framework, explores these barriers to uncover actionable solutions for integration. The study identifies key challenges, including explainability, cybersecurity, workforce resistance, and regulatory ambiguity to ML adoption in electric utilities. Utilizing an exploratory qualitative methodology, this approach integrates insights from the literature and industry interviews to rank barriers by frequency, severity, …

Centered? The Growing Role Of Centers In Intelligence Studies Programs, Jonathan Smith

Journal of Strategic Security

In recent years, civilian higher education programs in the area of Intelligence Studies have begun adding academic centers as a complement to their existing curriculum offerings. This study traces the development, operations, and impact of four such centers in the United States. Through a comparative case study approach, it is found that while centers in this subject area may focus on different educational objectives, each works toward this goal with an interdisciplinary approach and a desire to grow their capabilities in the area of cybersecurity. The development of such centers in the field of Intelligence Studies raises questions about the …

Detecting Drone Threats At Stadiums And Public Venues: Overview, Operational Considerations, And Technical Implementation, Nathan P. Jones, John P. Sullivan, George W. Davis Jr.

Journal of Strategic Security

This article overviews the issue of drone threats to stadiums and public venues. It provides emergency managers and those defending this critical infrastructure with an overview, operational considerations, and a discussion of the technical implementation for defending these sites from drone threats through detection. It provides a discussion of the current limitations of countermeasures and legal frameworks relevant to drones. Throughout, this article uses real drone detection data from the Astroworld concert incident (November 2021) as a notional case study to illustrate the type of drone detection data emergency managers will contend with and what can be gleaned from it. …

Strategic Leadership In Security Media: Enhancing Community Safety Against Drug Abuse In Oman, Raed Awashreh, Saif Alshuhoomi,, Viola Gjylbegaj

Journal of Strategic Security

Rapid global development has led to increased security challenges, particularly regarding drug-related crimes. This study examines the role of strategic leadership in security media to enhance community security, focusing on drug abuse in Oman. Despite ongoing efforts to combat drug-related offenses, these crimes remain a significant threat to societal stability. The qualitative research involved in-depth interviews with 14 decision-makers, including 7 experts from Oman’s security media, police, and related institutions. It explores the effectiveness of security media campaigns in raising awareness and reducing drug use. Thematic analysis of the data revealed key challenges, including limited resources, outdated technologies, and insufficient …

Florida Ems Voices: What Agency Providers Told Us In 2025, Michael Lozano

Florida Center for Emergency Medical Services Research Reports

The 2025 Annual Florida EMS Provider Survey provides a comprehensive overview of Florida’s EMS system, highlighting critical insights into workforce dynamics, resource allocation, medical direction, and service integration across EMS agencies statewide. Conducted from April to May 2025, the survey received robust participation from 249 agencies, covering 74.5% of licensed EMS providers. Key findings underscore regional variability in workforce recruitment, salary scales, mental health support, mobile integrated healthcare (MIH), and preparedness for mass casualty incidents.

Key areas of strategic emphasis include EMT and paramedic mental health and wellness, mobile integrated healthcare (MIH), and local quality improvement (QI) efforts. Notably, recruitment …

Crisis On The Frontlines: Recruitment And Retention Challenges In Ems, Bruce J. Moeller, Michael Lozano

Florida Center for Emergency Medical Services Research Reports

Florida’s emergency medical services (EMS) and fire service agencies face an unprecedented workforce crisis. Compounded by demographic shifts, rising call volumes, and mounting mental health challenges, many EMS agencies are struggling to recruit and retain qualified personnel. Existing models of recruitment—centered on short-term bonuses or messaging emphasizing sacrifice—are failing to resonate with new generations of workers, who prioritize mental wellness, career progression, and work-life balance. Additionally, outdated training pipelines and a decline in volunteerism, especially in rural areas, have weakened the traditional workforce structure, creating gaps that threaten the stability of emergency response systems statewide.

To address these challenges, the …

Using Blockchain Technology To Help Secure America's Defense Critical Infrastructure, Vimal Buck, Aerin Krebs, Brynn Hillard, Jakob Gerha, Joseph Lutma, Srikar Maduposu, Ted Allen

Military Cyber Affairs

Critical water infrastructure in the United States faces increasing cybersecurity threats from state-sponsored actors, with potentially devastating consequences for national security, economic stability, and public health. (Cybersecurity and Infrastructure Security Agency, 2025). This infrastructure supports defense critical assets and is actively being targeted by various state-sponsored hacking groups, which poses a major concern for civilians and military alike. K. Herath (personal communication, February 24, 2025) reported being aware of two attacks on Ohio water systems during his tenure as Cybersecurity Strategic Advisor to Ohio Governor Mike DeWine.

Water is essential to everyday life and defense and presents as a high-value …

Forward, Amy Hamilton

Military Cyber Affairs

No abstract provided.