Digital Commons Network^™

Beam-Clip: Multimodal Alignment For Mmwave Beam Pattern Learning, Andrew P. El Kommos

Graduate Thesis and Dissertation post-2024

This thesis presents a novel approach to beam prediction in wireless communication systems using a multimodal masked CLIP (Contrastive Language-Image Pre-training). We introduce a two-phase training methodology that first aligns representations across multiple sensor modalities—GPS, Radar, LiDAR, and RGB images—through masked contrastive learning, followed by task-specific fine-tuning for channel power reconstruction. Our approach adapts CLIP’s pre-training strategy to the domain of wireless signal modeling, enabling the model to learn rich, transferable features that capture the spatial and contextual dependencies of the beam distribution. Notably, the pre-training stage provides a substantial boost to overall performance, significantly improving the model's ability to …

Evolution Of Stressors For Healthcare Workers Over The Covid-19 Pandemic, F. Labrèche, Q. Durand-Moreau, A. Adisesh, J.-M. Galarneau, Shannon Ruzycki, Tanis Zadunayski, Nicola Cherry

Études primaires

Background:

Many studies have documented exposure to psychosocial factors in healthcare workers (HCWs) during the COVID-19 pandemic. Few have done it prospectively with open-ended questions.

Aims:

To describe the evolution of stress factors reported by HCWs during the pandemic.

Methods:

A prospective cohort of 4964 HCWs (physicians, nurses, healthcare aides, personal support workers), from four Canadian provinces, received four online questionnaires between the springs 2020 and 2022. Responses to an open-ended question on stressful events were coded into 25 stressors. Multilevel logistic regressions assessed trends in stressors, and the effect of gender, occupation, and age.

Results:

In 2020, 91% of …

A Scoping Review Of Population Diversity In The Common Genomic Aberrations Of Clear Cell Renal Cell Carcinoma, Sean S. Kumar, Ninad Khandekar, Komal Dani, Saina R. Bhatt, Vinay Duddalwar, Anishka D' Souza

Department of Medicine Faculty Publications

Introduction: Previous literature has shown that clear cell renal cell carcinoma (ccRCC) is becoming a more prevalent diagnosis and that the incidence and mortality differ both regionally and racially. While the molecular profiles for ccRCC are studied regionally through biopsy and sequencing techniques, the genomic landscape and ccRCC diversity data are not well studied. We conducted a review of the known genomic data on 6 of the most clinically relevant DNA biomarkers in ccRCC: von Hippel-Lindau (vHL), Polybromo-1 (PBRM1), Breast Cancer Gene 1-Associated Protein 1 (BAP1), Histone-Lysine N-Methyltransferase Domain-Containing 2 (SETD2), Mammalian Target of Rapamycin (mTOR), and Lysine-Specific Demethylase 5C …

Oral Microbiome And Inflammatory Bowel Disease: New Understanding And Call To Action, Michael Saadeh, Sydney Donohue, Shaina Ailawadi, Gordon Hong, David A. Johnson

Department of Medicine Faculty Publications

The oral microbiome is the second largest microbial community in the human body after the gut microbiome. It includes an array of fungi, bacteria, amoebae, flagellates, archaea, and viruses, all of which are potential pathogens. This microbiome can act as a facilitator not only for protection but also for aggravation when dysbiosis occurs. Although conventional thought is this is primarily in terms of oral health issues, such as dental caries and gingival disease. The systemic effects of the oral microbiome however, are relevant to both gastrointestinal (GI) disease and non-GI disease. These systemic risks occur for several reasons, including upregulation …

The Reliability Gap: How Traditional Search Engines Outperform Artificial Intelligence (Ai) Chatbots In Rosacea Public Health Information Quality, Houston C. Nelson, Morgan T. Beauchamp, April A. Pace

Department of Medicine Faculty Publications

Background: The internet has become a primary source of health information for the public, with important implications for patient decision-making and public health outcomes. However, the quality and readability of this content vary widely. With the rise of generative artificial intelligence (AI) tools such as ChatGPT and Gemini, new challenges and opportunities have emerged in how patients access and interpret medical information.

Objective: To evaluate and compare the quality, credibility, and readability of consumer health information provided by traditional search engines (Google, Bing) and generative AI platforms (ChatGPT, Gemini) using three validated instruments: DISCERN, JAMA Benchmark Criteria, and Flesch-Kincaid Readability …

Multisociety Guidance For Infection Prevention And Control In Nursing Homes, Lona Mody, Sonali D. Advani, Muhammad Salman Ashraf, Allison H. Bartlett, Suzanne F. Bradley, Deborah P. Burdsall, Jennifer A. Hanrahan, Susan S. Huang, Robert L.P. Jump, Lindsay Nicolle, Mary-Claire Roghmann, Patricia Stone, Rekha K. Murthy

Department of Medicine Faculty Publications

This multisociety guidance was endorsed by SHEA, APIC, IDSA, PALTmed, and AGS. It provides recommendations for infection prevention and control (IPC) in the context of the complexity of nursing home care in the United States: increased medical acuity of residents, the spread of multidrug-resistant organisms, and the threat of emerging pathogens. Recommendations and implementation suggestions address IPC leadership, staffing, and resources, healthcare personnel and residents‘ adherence to precautions and effective hand hygiene, outbreak preparedness, training, occupational health, cleaning and disinfection in the care environment, and the involvement of IPC in the facility. The guidance also addresses the challenges of maintaining …

Criminal Procedure Without Consent, Kate Weisburd

Faculty Scholarship

Scholars and advocates have long argued that a person’s consent to a warrantless police search is often so inherently coerced, uninformed, and shaped by race, class, gender, citizenship status, and disability that to call it a “choice” is fiction. This critique is not limited to police searches based on consent. Waiving rights and consenting to otherwise unconstitutional state action permeates criminal procedure. The definition of a seizure, the third-party doctrine, custodial confessions, plea bargains, and agreements to alternatives to incarceration (such as GPS ankle monitoring) all hinge on the idea of voluntary choices—choices that are often just as coerced and …

Betwixt And Between: Restorative Justice, Dei, And Education Carcerality, Thalia Gonzalez, Alyssa Faith Scott

Faculty Scholarship

American K-12 public education is at a critical anti-civil rights inflection point amidst a rapidly changing landscape of federal and state education law and policy. From local anti-literacy measures to state “three strikes” exclusionary school discipline legislation to punitive federal executive orders, new legal mechanisms are conjoining to produce public school climates marked by structural violence, and the erasure of students with multiple marginalized identities. Attending to these political and legal realities is a growing cluster of legal scholarship empirically categorizing, and theoretically challenging, the rise of such anti-education civil rights obstructions. Though diverse in scope, analyses prominently center the …

Barriers And Facilitators Of A Sense Of Belonging Among Occupational Therapy Students And Faculty: A Qualitative Study Using The Ecology Of Human Performance Framework, Sabina Khan, Elizabeth Deluca-Berg, Kersten Laughlin, Jacqueline Achon, Khalil Mrabe, Christianah Edema

Journal of Occupational Therapy Education

A sense of belonging significantly influences both student engagement and faculty motivation. The objective of this study was to identify the barriers and facilitators of a sense of belonging among students and faculty of an occupational therapy department. A qualitative descriptive study was conducted with fifty-one students and ten faculty recruited via non-random purposeful sampling. Data were collected through focus group discussions with students and semi-structured interviews with faculty. Both the focus group discussions and interviews were audio-recorded and transcribed by a professional transcription service. Inductive coding was used to identify initial themes, which were then deductively mapped to the …

Effect Of Gluconate Molecules On The Reaction Kinetics Of C-(N)-A-S-H And N-A-S-H Gel Formation, Jiafeng Kong, Chao Sun, Zuhua Zhang, Chenglong Cai, Yubin Cao, Yanru Wang, Hongyan Ma, Xuesen Zeng, Hao Wang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Organic ligands are widely used to regulate setting in cementitious binders, yet their chemistry-selective action in geopolymers (GPs) remains unclear. Here we isolate the role of sodium gluconate (SG) in early reaction kinetics across a Ca-rich GP that forms a calcium-(sodium)-aluminosilicate hydrate (C-(N)-A-S-H) gel and a Ca-poor GP that forms a sodium-aluminosilicate hydrate (N-A-S-H) gel. Four GPs spanning Ca/Si ≈ 1.01 to 0.01 were prepared with identical activator chemistry and dosages of SG up to 5 wt.% of precursors. Setting time, isothermal calorimetry, pore-solution speciation (TOC, ICP-OES, and pH), selective dissolution (reaction extent), low-field¹H NMR, XRD, FTIR, SEM-EDS, …

Extending The Applicability Of Thermal Protection System Ballistic Limit Equations Beyond The Testable Regime, William P. Schonberg, Michael D. Squire

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Spacecraft use thermal insulation in their design, which is usually placed on their exterior. As such, it is susceptible to high-speed impacts by meteoroids and orbital debris, which can damage it to a point where the protection it offers is below acceptable limits. It is important to be able to characterize expected levels of damage stemming from such high-speed impacts. In this paper, we extend the applicability of a previously developed ballistic limit equation (BLE) for one such thermal insulation material using the results of a series of Smooth Particle Hydrodynamics Code (SPHC) impact simulations at velocities in excess of …

Reevaluating The Van’T Hoff And Arrhenius Equations: How Temperature And Pressure Affect Chemical Reaction Thermodynamics, Equilibrium, And Kinetics, Jianmin Wang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The van’t Hoff equation, which is used to calculate the effect of temperature on equilibrium constants, was derived from the Gibbs – Helmholtz equation that relates the molar Gibbs free energy to the molar enthalpy of a chemical reaction. However, the Gibbs – Helmholtz equation was developed for systems that do not consider contributions of Gibbs free energy from chemical species. Consequently, the van’t Hoff equation and the Arrhenius equation derived from it are technically incomplete.

By employing Hess’s law and the appropriate Gibbs free energy equation for chemical reaction systems, this investigation develops theoretical equations to calculate the effects …

Beneficent Artificial Intelligence In The Age Of The Thing: A Case Study Of The Palm Beach County Library System, Philip J. Smith

Electronic Theses and Dissertations 2020 - Present

With this thesis, I explore how Palm Beach County Library System administration and the broader county government are managing the advance of artificial intelligence and seeking actionable resolutions to the artificial intelligence dilemma. Due to power differentials, triangulation required me to adopt a humanist, perspectival approach. I collected data from participant observations, reflective fieldnotes, literature review, and transcription of an interview, all of which informed my interpretations. Albeit colored by past experiences, I relate my professional familiarity in a customer service training role and express the importance of engaging patron experience that is service-oriented, ongoing training intended to recenter the …

Materia Non Medica: Reading Disability And Medical Narratives In The Daughter Of Doctor Moreau, Jessica Elizabeth Young

Electronic Theses and Dissertations 2020 - Present

This thesis presents a close reading of The Daughter of Doctor Moreau by Silvia Moreno-Garcia, engaging Indigenous studies and disability studies to illuminate how the novel interrogates embodiment, medical authority, and human difference. By situating the text within historical frameworks of medicine and corporeality in Mexico, and alongside speculative modes that seek to recuperate non-Western epistemologies, the analysis reveals how Moreno-Garcia reimagines the body as mutable, relational, and politically charged. The narrative’s hybrid characters and transgressive identities offer a generative lens through which to explore bodily variance, not as deviation, but as a site of possibility. Ultimately, this thesis argues …

Opioid Usage And Non-Opioid Alternatives In Septorhinoplasty: A Narrative Review, Robert M. Frederick, Eric Dobratz

Department of Otolaryngology (ENT) Faculty Publications

Background and Objective: Opioids are routinely prescribed following septorhinoplasty and oftentimes surgeons prescribe a larger number of tablets than patients require. Considering the high risk of developing opioid dependence and risk of diversion, it is imperative that surgeons practice safer, evidence-based prescribing habits. This review is intended to detail the current state of opioid usage after septorhinoplasty, focusing on articles that show pertinent and practice-altering findings. This will allow surgeons to reflect on their prescribing patterns and make evidence-based decisions to improve them.

Methods: A literature search was performed in November 20, 2024 via PubMed using keywords such as ‘opioid …

A Comparison Of Allergen Sensitization Profiles In Patients With Chronic Rhinosinusitis With And Without Nasal Polyposis, Lauren Trzcinski, Suhas Bharadwaj, Randall A. Bloch, Joseph K. Han, Kent K. Lam

Department of Otolaryngology (ENT) Faculty Publications

Chronic rhinosinusitis (CRS) and allergic rhinitis (AR) are common comorbid sinonasal conditions. CRS is classically divided into two distinct phenotypes: CRS with nasal polyposis (CRSwNP) and CRS without nasal polyposis (CRSsNP). The purpose of this retrospective observational study is to determine whether aeroallergen sensitization profiles in patients with comorbid CRS and AR can distinguish between CRSwNP and CRSsNP. A total of 241 patients diagnosed with comorbid CRS and AR who underwent skin prick testing or in vitro allergy testing in a single tertiary rhinology practice were included for evaluation. The rates of allergen-specific sensitizations in CRSwNP patients were compared with …

Exploring The Role Of Online Discussion Forums In Endorsing Egyptian Undergraduates’ Efl Learning, Wesam Khairy Morsi

English Language and Literature

eLearning Management systems (eLMS) are software applications used in universities worldwide to implement specific educational goals. eLearning platforms have several features that support traditional Face to Face (FTF) teaching and provide valuable opportunities for independent, self-paced learning. One of these features is the Online Discussion Forums (ODFs). This research paper investigates the role of ODFs in endorsing English as a Foreign Language (EFL) learning by examining students' perceptions of its accessibility, peer/instructor interaction, assessment criteria, and discussion topics. The paper also investigates the influence of gender on students' perceptions of the role of ODFs. This is a non-experimental research design, …

Aqualoop (The Four Stages Of Earth's Water Cycle), Precious Onwubuche

Theses

This research investigates the development of an educational initiative that illustrates the water cycle using real-life simulations and moving graphics targeting high school students and older audiences to connect theoretical knowledge with hands-on learning in Earth science education. The initiative utilises visual design strategies to turn intricate hydrological processes into an engaging educational journey. The significance of this project is underscored by statistics showing that fewer than 30 percent of secondary school students master Earth science principles, such as the water cycle. This is based on 2019 information from the National Assessment of Educational Progress (NAEP). Additionally, and notably, more …

On High-Speed Breakup Of Water Droplets Behind High Mach Number Shocks, Sydney M. Briggs

Graduate Thesis and Dissertation post-2024

Water droplet breakup in high-speed flow is a relatively popular experimental study to analyze breakup mechanisms. There is a plethora of experiments performed at low Mach number and low Weber number, but studies with higher speed flows and higher Weber numbers are less common. In this study, water droplet breakup is assessed using high-speed shock waves (Mach 2.3-above Mach 5) in a shock tube. Multiple methods are used to introduce droplets, and multiple different water purity levels are considered. An assessment was made into whether cavitation played a role in the breakup process physically, as this has been a budding …

Towards Supporting Undergraduate Students To Become Lifelong Learners: A Multimethod, Multimodal, And Multigranular Analysis Of Motivation And Self-Regulated Learning In Context, Sierra Outerbridge

Graduate Thesis and Dissertation post-2024

This publication-based dissertation includes three manuscripts with distinct statistical methods to investigate self-reported motivation, self-reported self-regulated learning (SRL), and enacted SRL processes in undergraduate student contexts towards understanding how students learn how they learn.

The first manuscript focused on 1248 undergraduate statistics students, utilized self-reported motivation, and interpreted logfile data of time spent within an online textbook through the lens of SRL using hierarchical cluster analysis followed by k-means cluster analysis to identify four distinct motivation clusters. Results from a repeated measures ANOVA suggest that students did not spend time differently within the textbook, whereas there were differences between motivation …

Deep Reinforcement Learning-Based Optimal Takeoff Trajectory Design Of An Evtol Drone, Nathan M. Roberts, Bingling Huang, Xiaosong Du

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The continuing development of electric vertical take-off and landing (eVTOL) aircraft presents promising opportunities to alleviate transportation congestion. However, designing and executing takeoff trajectories that optimally balance energy usage, passenger comfort, and aircraft constraints remains challenging. Conventional design optimization provides a solution for pre-defined flight conditions and environments but is not ideal in real-world applications. In contrast, deep reinforcement learning (DRL) implements optimal policy making real-time decisions with no assumption of mathematical models. Seeing the lack of literature on DRL-based takeoff trajectory design of eVTOL aircraft, we implement and conduct DRL-based optimal takeoff trajectory designs for the Airbus³ Vahana …

Industry 5.0, Human–Machine Interface, And Smart Manufacturing In Additive Manufacturing—A Recent Trend, Atiqur Rahman, Md Hazrat Ali, Muhammad Arif Mahmood, Frank Liou

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The emergence and importance of Industry 5.0 are transforming production by integrating smart technology with human creativity and intelligence, especially in advanced additive manufacturing. This critical review precisely analyzes the function of human–machine interfaces (HMIs) in enhancing additive processes, emphasizing their incorporation into smart manufacturing systems and hybrid manufacturing methods, including material extrusion (MEX), laser powder bed fusion (LPBF), and directed energy deposition (DED). It also evaluates artificial intelligence (AI), the Internet of Things (IoT), and cybersecurity, which enhance HMIs in process monitoring, operation, and system adaptability. This study aims to provide a critical analysis and future research direction on …

Inhibition Of Activin A Signaling Slows The Progression Of Barrett's Esophagus Induced Esophageal Adenocarcinoma, Lily A. Giardino

Graduate Thesis and Dissertation post-2024

In 2020, approximately 1.03 billion cases of Gastro-esophageal Reflux Disease (GERD) were reported worldwide, representing a significant global health burden. Chronic GERD is a potent initiator of Barrett’s Esophagus (BE), a precancerous condition in which the squamous epithelium is converted into columnar-like epithelium in the distal esophagus in response to reflux injury. Barrett’s Esophagus is the only known precursor to Esophageal Adenocarcinoma (EAC), a disease with a five-year survival rate of 21%. First line treatments focus on acid suppression and endoscopic mucosal resection but did not result in a decrease of EAC incidence highlighting the importance of new therapeutics. Previous …

Investing In Digital Solutions For Firm Value, Mahala Geronasso

Graduate Thesis and Dissertation post-2024

Digital investments have become integral to the strategies of hospitality firms, enabling data-driven decision-making, operational efficiency, and financial growth. This dissertation examines the impact of digital investments, specifically IT investment (CAPEX), research and development (R&D) intensity, and digital marketing intensity, on operational and financial performance within hospitality firms, guided by Innovation Diffusion Theory and Agency Theory. A comprehensive empirical analysis utilized financial data from publicly traded U.S. hospitality firms (2013–2023). Advanced econometric methods, including ARIMA, GARCH, and structured panel regressions, were rigorously assessed to evaluate performance dynamics. Findings reveal IT investments significantly enhance operational efficiency, profitability, and liquidity, despite causing …

Genomic Consequences Of Habitat Fragmentation In The Florida Scrub-Jay: Diversity, Adaptation, And Disease Susceptibility, Maryam Ghoojaei

Graduate Thesis and Dissertation post-2024

Habitat fragmentation is a severe threat to biodiversity by reducing population size, gene flow, and adaptive potential, especially in habitat specialists like the Florida Scrub-Jay (Aphelocoma coerulescens). This dissertation integrates whole-genome sequencing and immunogenetics to assess the genomic consequences of habitat fragmentation across three primary Florida Scrub-Jay strongholds: Archbold Biological Station, Ocala National Forest, and Florida’s East Coast. In Chapter 2, I focused on adaptive genetic diversity at the Major Histocompatibility Complex (MHC) class II genes. I characterized MHC allelic richness, evaluated signatures of selection, and examined associations with pathogen infections. Despite population declines, I found moderate MHC diversity, suggesting …

A New Dawn Of Joy: How Joy Is Cultivated Among Black Transgender And Nonbinary Young Adults In Florida, Courtney Marciá Gardner

Graduate Thesis and Dissertation post-2024

The state of Florida had a record-breaking number of implemented and proposed policies between 2023-2024 that impacted transgender and nonbinary individuals. Black transgender and nonbinary people are particularly impacted by these policies due to the compounded effects of their race and gender identity. Nonetheless, despite the growing literature on Black transgender and nonbinary individuals, a lack of research exists examining positive aspects of intersectional experiences among Black transgender and nonbinary individuals. This qualitative study shifts away from deficit centered frameworks by investigating how Black transgender and nonbinary young adults in Florida cultivate joy in their lives. This study uses a …

Large Language Models And Networks: Edge Proposal, Synthetic Corpora, And Adaptive Node Generation, Nathan Gonzalez

Graduate Thesis and Dissertation post-2024

Natural Language Processing (NLP) and Artificial Intelligence (AI) have evolved from brittle rule-based engines through data-driven statistical models to today’s transformer architectures whose multi-head attention enables rich contextual reasoning. Against this backdrop, this dissertation unifies three complementary investigations that deepen our understanding of how large language models (LLMs) can reason over, generate, and strategically adapt language within networked settings. First, instruction-tuned LLMs are recast as latent-relationship detectors: by prompting models to hypothesize links between text-described entities, we recover edge sets that reconstruct social, thematic, and citation graphs with high precision, revealing how attention distributions encode topological cues. Recognizing the difficulty …

Modeling Frameworks To Understand And Predict Land Use Type And Land Value Patterns In Florida, Lauren Hoover

Graduate Thesis and Dissertation post-2024

Florida’s population has been rapidly growing, with a 14.6% growth in population from 2010 to 2020. This growth in population has led to an associated increase in demand for housing and commercial establishments, which have resulted in changes in land use patterns across the state. For this dissertation, we focus on methods to qualitatively and quantitatively examine how land use patterns are likely to evolve under the expected scenario of population growth in Florida while explicitly allowing for interactions between demographics, transportation and land use patterns. In our first objective we build a simulation framework to predict land use evolution …

Printability And Phase Transformation Of Selected Alloys Additively Manufactured By Laser Powder Bed Fusion, Thinh Huynh

Graduate Thesis and Dissertation post-2024

The integration of laser powder bed fusion (LPBF) to produce critical engineering components, aimed at achieving reduced weight and enhanced efficiency, has sparked significant interest in the field of additive manufacturing (AM). LPBF is highly desirable due to its rapid production capabilities, minimized material waste, and its ability to facilitate intricate engineering designs. The ongoing challenges associated with processing metals free of cracks while attaining high relative density remain central to advancing AM technology. This has led to a continued interest in alloy development for LPBF given the limited selection of alloys currently available. This study seeks to evaluate the …

Distribution And Morphology Of Spinal Afferent Innervation Of The Gastric Muscular And Submucosal Layers Of Rats: Anterograde Tracing, Andrew M. Kwiat

Graduate Thesis and Dissertation post-2024

Chronic pain afflicts over 25 million Americans, with approximately 2 million developing opioid addiction due to insufficient treatment options. Visceral chronic pain, particularly abdominal pain, poses a significant clinical challenge, yet its underlying neural mechanisms remain poorly defined. This thesis presents a comprehensive anatomical analysis of spinal afferent innervation in the muscularis externa and submucosal layers of the rat stomach—two tissue compartments implicated in visceral sensation and pain. Using anterograde tracing, dextran-biotin was injected into thoracic dorsal root ganglia (T7–T11) of male Sprague Dawley rats (3–5 months) to label spinal afferent axons in the stomach. Flat-mount preparations of muscular and …