Digital Commons Network^™

Distributed Semi-Speculative Parallel Anisotropic Mesh Adaptation, Kevin Garner, Polykarpos Thomadakis, Nikos Chrisochoides

Computer Science Faculty Publications

This paper presents a distributed memory method for anisotropic mesh adaptation that is designed to avoid the use of collective communication and global synchronization techniques. In the presented method, meshing functionality is separated from performance aspects by utilizing a separate entity for each - a multicore cc-NUMA-based (shared memory) mesh generation software and a parallel runtime system that is designed to help applications leverage the concurrency offered by emerging high-performance computing (HPC) architectures. First, an initial mesh is decomposed and its interface elements (subdomain boundaries) are adapted on a single multicore node (shared memory). Subdomains are then distributed among the …

A Survey Of Ai Methods For Geometry Preparation And Mesh Generation In Engineering Simulation, Steven Owen, Nathan Brown, Nikos Chrisochoides, Rao Garimella, Xianfeng Gu, Franck Ledoux, Na Lei, Roshan Quadros, Navamita Ray, Nick Winovich, Yongjie Jessica Zhang

Computer Science Faculty Publications

Artificial intelligence is beginning to reduce the manual effort in the CAD-to-mesh pipeline. Written for meshing and geometry practitioners with limited AI background, this survey organizes recent work by workflow step. We cover part classification and segmentation, mesh quality prediction, and defeaturing. We review AI guidance for unstructured meshing, block-structured meshing in 2D and 3D, and volumetric parameterization, including reconstruction from implicit or sampled geometry. We also discuss parallel mesh generation and scripting automation via reinforcement learning and large language models. Across these topics, AI complements established geometry and meshing algorithms rather than replacing them. We conclude with practical lessons …

What’S Sleep Got To Do With It? A Mixed Methods Exploration Of The Feasibility, Acceptability, And Initial Outcomes Of Group Cbt For Insomnia In Parkinson’S Disease, Claire M. Williams

Theses and Dissertations

Parkinson’s disease is a progressive neurodegenerative disease that is commonly associated with sleep disturbances, affecting up to 80 percent of individuals with Parkinson’s. Effective and accessible treatments for sleep problems in Parkinson’s disease remain limited. Cognitive Behavioral Therapy for Insomnia (CBTi) is a well-established, non-pharmacological treatment for insomnia but has been minimally studied in Parkinson’s populations. This study evaluated the feasibility, acceptability, and preliminary outcomes of a group-based CBTi intervention adapted for individuals with Parkinson’s disease. Participants engaged in a six-week group intervention that incorporated Parkinson’s-specific adaptations. Preliminary findings indicated that the adapted group CBTi intervention was generally feasible and …

Use Of Transcranial Magnetic Stimulation As An Assessment Of Corticospinal Excitability In Individuals With Persistent Postural Perceptual Dizziness, Elizabeth Cornforth

Theses and Dissertations

Persistent postural-perceptual dizziness (PPPD) is a common, disabling, chronic vestibular disorder whereby individuals experience symptoms of non-vertiginous dizziness, unsteadiness, and sway or rocking that are present most hours of the day, most days of the week. Individuals with PPPD have been noted to have an increased burden of dizziness and reduced quality of life compared to other dizziness diagnoses. The cause of PPPD is not well understood which can lead to years of diagnostic testing, failed therapies, and poor symptom management. It is important to understand PPPD pathophysiology so that optimal treatment interventions can be developed for this disorder to …

Proof Of Recovery: A Model To Enhance Data Integrity In Data Management Systems, Gustaf Barkstrom

Theses and Dissertations

Businesses lose millions of dollars every year when they can’t restore data from backups. Research shows that Disaster Recovery Plan (DRP) testing is not conducted frequently enough, nor are records maintained that demonstrate full data recovery from backups. This work introduces a design science artifact called PRTOK that aims to increase DRP testing. The design science artifact is a software solution that integrates with Data Management Systems (DMS)

such as iRODS and DSpace, and can work with formats such as HDF5 and BagIt. Proof-of- recovery records, or tokens, are recorded in a replicated, resilient, and indelible proof-of- authority blockchain data …

Nanomagnet Based Straintronic Devices For Unconventional Computing: Simulation And Performance Analysis, Rahnuma Rahman

Theses and Dissertations

Nanomagnetic devices are of great interest in digital hardware because of their non-volatility and dynamic ability to change magnetization but suffer from high switching error rates and temperature sensitivity. Magnetostrictive nanomagnets that utilize strain to switch between stable magnetization states encoding bit information are of interest since they are extremely energy efficient as piezoelectric layers can be used to rotate magnetization that have switching energies in the range of attojoules. Their stochasticity can also be useful in probabilistic, analog, neuromorphic, and collective computing systems, where occasional switching errors are not devastating. The dissertation extends spintronics beyond conventional computing schemes by …

Local Lung Delivery Of Ginkgetin For Therapeutic Intervention In Lung Fibrosis, Cimone L. Richardson

Theses and Dissertations

Lung fibrosis (LF) is a progressive, irreversible pathological condition in the lungs that is ultimately fatal. Current drug treatments (nintedanib, pirfenidone, and nerandomilast) slow disease progression but cause significant systemic adverse effects due to oral administration. Transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive ion channel, may play a role in LF progression and represent a novel anti-LF target. Ginkgetin (GKT), a natural biflavonoid, is a potent TRPV4 inhibitor with anti-inflammatory and antioxidative properties. Local lung delivery could achieve high local lung concentrations while minimizing systemic exposure. Accordingly, this project evaluates GKT's therapeutic intervention efficacy in LF via local lung …

Ontological Runtime Monitoring For Mission Engineering, Alexander R. Will

Theses and Dissertations

The advent of the Urban Air Mobility (UAM) concept will bring low-altitude aviation to civilians through passenger and cargo transport. However, the prospective vehicles in UAM studies are predominantly autonomous, raising questions about their efficacy and stability in densely populated urban areas. At the same time, extensive work has been performed to define a new branch of systems engineering that focuses on runtime behavior, synchronization, communication, and task allocation.This field is known as "mission engineering". Mission engineering has been deployed in military scenarios to model human-autonomy cooperation. By applying the concepts from this field to UAM, full systems-of-systems can be …

Real-Life Health Applications Of Wireless Sensing Using Edge Devices, Md Touhiduzzaman

Theses and Dissertations

Wireless sensing has emerged as a transformative paradigm that leverages ubiquitous radio-frequency signals for environmental perception and human activity recognition beyond their primary role in data communication. Unlike wearable sensors and camera-based systems, wireless sensing offers a non-intrusive, privacy-preserving, and cost-effective alternative that operates seamlessly under low-lighting conditions, through walls, and in non-line-of-sight (NLoS) scenarios. The growing availability of edge computing devices further enables real-time on-device data processing, making wireless sensing solutions highly suitable for in-home health monitoring and smart living applications. This dissertation investigates real-life health applications of wireless sensing through four completed systems, each addressing a distinct challenge …

Dielectric Grating Integrated Hg1-Xcdxte (Mercury Cadmium Telluride) Infrared Photodetectors For High Operating Temperature, Mohammad Ariful Hoque Sojib

Theses and Dissertations

Mercury cadmium telluride (Hg1-xCdxTe, MCT) infrared photodetectors typically require cryogenic cooling to suppress thermal noise, limiting their adoption in size, weight, power, and cost (SWaP-C) constrained military and commercial systems. This dissertation investigates dielectric grating array integration as an extrinsic route to high operating temperature (HOT) detection in Auger-suppressed MCT architectures. Finite element modeling shows that a grating assisted light coupling into a subwavelength (1.5 µm) Hg0.762Cd0.238Te mid-wave infrared layer acting as an absorptive waveguide, achieves photocarrier generation rate comparable to a conventional bulk (e.g., 5 µm) layer. For long-wave infrared detectors, coupled FDTD and drift-diffusion modeling, together with a …

Testing The Limits Of Provenance Analysis From Basaltic Fluvial Sediment Near Sandvatn, Iceland, As A Mars Analog, Audrey R. Putnam, Kirsten L. Siebach, Michael T. Thorpe, Valerie M. Tu, Elizabeth B. Rampe, Candice C. Bedford, Gelu Costin, Joseph J. Tamborski

OES Faculty Publications

Detrital sediments that accumulate downstream and are preserved in sedimentary rocks can allow characterization of geologic formations that are inaccessible for spatial or temporal reasons. However, mixing, sorting, and alteration of sediment during transport may complicate reconstruction of protolith characteristics. We test the preservation of three key provenance signals in coarse fluvial sand at a Mars analog watershed in Iceland to determine whether detrital sediments capture (a) watershed magmatic chemical variation, (b) textural indicators of lava-water interaction during eruption and cooling, and (c) hydrothermal alteration. Specifically, we tested whether diagnostic variations in rock mineralogy, chemistry, and texture can be recovered …

Aquatic Macrophytes As Nature-Based Solutions: Challenges And Opportunities Across Inland And Coastal Waters, Morgan Botrel, Roxane Maranger, Lindsay L. Trottier, Mathieu Cusson, Lars L. Iverson, Fanny Noisette, Christian Nozais, Katrine Turgeon, Andrea Bertolo, Thibaud André-Alphonse, Simon Bélanger, Arthur De Grandpré, Jean-Olivier Goyette, Sabine Hilt, Ladd Johnson, Valérie Langlois, Martin Laporte, Félix Lauzon, Brigitte Légaré, Anne Ola, Marie-Pomme Presne-Poissant, Matthieu Prugne, Caroline Susini, Richard Zimmerman

OES Faculty Publications

Macrophytes are foundation species whose use as nature-based solution (NbS) in aquatic ecosystems can help reduce climate change impacts while mitigating biodiversity loss. The discrepancy in research and application of macrophytes as NbS across inland and marine coastal ecosystems is an opportunity to expand the concept and learn from different approaches. We report on an initiative uniting marine and freshwater scientists that compared knowledge on macrophytes as NbS across realms, identified advances and gaps in their use, and synthesized challenges and opportunities for application. We conducted a bibliometric analysis and an expert participatory exercise around recent review papers. We reveal …

Revisiting The Life Cycle Of Margalefidinium Polykrikoides Group Iii, Eduardo Pérez-Vega, Kenneth N. Mertens, Pjotr Meyvisch, Margaret R. Mulholland

OES Faculty Publications

Dinoflagellates produce cysts as a strategy to withstand environmental stressors, with nutrient depletion generally considered a key trigger for cyst production. Resting cysts are thick-walled, typically composed of one to several layers, and characterized by a prolonged dormancy period. In contrast, pellicle cysts possess a thin, single wall and exhibit no dormancy or a markedly shorter dormancy than resting cysts of the same species. Margalefidinium polykrikoides produces pellicle and resting cysts, whereas its congener, M. fulvescens, has been shown to produce pumpkin-like structures. Using phase-contrast microscopy, time-lapse microscopy, FlowCam, and attenuated total reflection Fourier transform infrared microspectroscopy (ATR μ-FTIR), …

Effect Of Density Irregularities On Radio Frequency Wave Propagation In Ionospheric Plasmas, Eun-Hwa Kim, Jay Johnson, Syun'ichi Shiraiwa, Nicola Bertelli, Masayuki Ono, Simon Wing

Faculty Publications

No abstract provided.

Effects Of Density Turbulence On Helicon Wave Propagation In The Core Plasmas, Eun-Hwa Kim, Syun'ichi Shiraiwa, Seung-Hoe Ku, A. Bortolon, Masayuki Ono, Nicola Bertelli, Robert I. Pinsker

Faculty Publications

No abstract provided.

Existence, Nonexistence And Uniqueness Of Positive Solution To A General Elliptic System With Fixed Or Perturbed Growth Rates, Joon Hyuk Kang, Noah Koliadko

Faculty Publications

No abstract provided.

Investigation Of Causal Relationships Of The Cross-Scale Wave Coupling Through Information Theoretical Approach, Elmer Rivera, J. Johnson, Simon Wing, Eun-Hwa Kim, Khan-Hyuk Kim, Katariina Nykyri

Faculty Publications

No abstract provided.

The Study Of The Quasi-Periodicity Observed On Plasma Density And Magnetic Field On Saturn's Magnetosphere: An Information Theory Approach, B. R. Neupane, J. R. Johnson, P. A. Delamere, Simon Wing, A. Sciola, K. Sorathia, Joe Caggiano, B. Mino, Colby Maxim

Faculty Publications

No abstract provided.

A Predator-Prey Biological Model Of Multiple Species With Linear Growth Rates, Joon Hyuk Kang

Faculty Publications

No abstract provided.

Impact Of Job Demands On Performance, Satisfaction, And Environment, Michelle Chin Loy

Theses and Dissertations

This applied dissertation examined the relationships between job resources, job demands, work engagement, perceived stress, and job satisfaction among university employees. The target participants for the study were employees at an academic institution in the South Florida area. The researcher e-mailed two surveys to the employees, and a response rate of 20% was achieved. One survey was conducted to assess the psychosocial work environment factors, and the impact on the employees’ well-being. The sub-scales used were Job Resources, Job Demands, Well-being outcomes, and Stress. The other survey measured the work engagement, the employees’ well-being, and how they experience enthusiasm, commitment, …

Usage Behavior Of Hispanic English Learners With Bilingual Homework Resources In Developmental Mathematics At Community College, Debra Krieg

Theses and Dissertations

This applied dissertation, grounded in the theoretical framework of metalinguistic awareness, was designed to understand how six Hispanic English learners (ELs) were utilizing homework help resources when offered in both English and Spanish. Specifically, the study was conducted at a mid-Atlantic community college with students enrolled in a developmental mathematics course. Homework has long been established as a tool that increases the probability of academic success. The shift to web-based assignments in developmental mathematics from traditional pencil and paper homework has yielded positive results yet little is known regarding how learners utilize bilingual digital assessment tools to achieve mastery of …

The Effectiveness Of Behavioral Skills Training In Enhancing Teachers’ Ability To Write Specific, Measurable, And Individualized Iep Goals Targeting Quality-Of-Life Skills, Emilia Endean

Theses and Dissertations

This applied dissertation sought to assess the effectiveness of a behavior skills training (BST) protocol in improving teacher behaviors for writing high-quality individualized education plan (IEP) goals that target quality-of-life (QoL) domains. High-quality IEP goals that target both academic and functional repertoires are required by the Individuals with Disabilities Education Act (2004) and are essential for students with disabilities to achieve meaningful outcomes. BST is an effective intervention for teaching a variety of skills. No prior research has explicitly examined the application of BST for teacher professional development in writing IEP goals.

This single-subject study used a time-lagged multiple probe …

Does Integrating Parental Involvement In Therapy Improve Behavior In Children With Attention Deficit Hyperactivity Disorder?, Pamela Lassiter

Theses and Dissertations

The research problem was the lower success rate of interventions for children with attention deficit hyperactivity disorder (ADHD) because of the exclusion of parents in the counseling process. The purpose of the research was to explore if integrating parent involvement in therapy improved the behaviors in children with ADHD. The study occurred at a private mental health facility that used cognitive behavior therapy and behavior interventions with the children.

The study was guided by the phenomenological qualitative research design. Ten single parents of male children, ages 4 to 10 with ADHD, participated in this study. Parents were selected using a …

Fairness: Examining Support And Resources Available To Respondents In Title Ix Cases, Emanuel Jerome Oliver

Theses and Dissertations

This phenomenological study explored how higher education institutions develop Title IX procedures to ensure respondents receive fair treatment from the outset of the adjudication process. It also examined how colleges and universities provide resources and support to respondents throughout the Title IX process. The study used semi structured interviews with Title IX Coordinators at various higher education institutions to understand how they have developed practices to support respondents.

Findings revealed that higher education institutions have developed various methods to support respondents in the Title IX process. The goal of the Title IX process is to ensure that respondents receive the …

Estudio Sobre La Influencia Del Estrés Tóxico En La Salud Física Y Emocional De Estudiantes Universitarios Puertorriqueños Entre Las Edades De 18 A 25 Años, Coral M. Flores Correa

Theses and Dissertations

Esta disertación aplicada tuvo como propósito examinar la influencia del estrés tóxico en la salud física y emocional de jóvenes universitarios puertorriqueños entre 18 y 25 años. El desconocimiento sobre la influencia de estos elementos en la salud representa un área de oportunidad en el campo de la educación en salud para mejorar los procesos de atención. La realización de la presente investigación, por lo tanto, establece un punto de partida para la comprensión de la complejidad y los efectos a corto y largo plazo de este tipo de estrés.

La investigación utilizó un enfoque cuantitativo con un diseño no …

Human Resources Professionals’ Perceptions About Employment And Retention Of Women With A Substance Abuse History: A Qualitative Study, Mary Harris

Theses and Dissertations

This study was an exploration of human resources professionals’ (HRP) perceptions about employment and retention of women with a substance abuse disorder history. Job embeddedness was used as a critical lens to understand HRPs’ motivations for their actions and to gain insight into their choices.

A generic qualitative methodology was used to understand the complexity of HRPs’ experiences in employing and retaining women with substance use disorder history. The data-collection method consisted of semi structured interviews of 10 HRPs from midsize organizations in the Southeast Florida region.

The results of the thematic analysis revealed 10 themes that addressed the research …

The Influence Of Haitian Immigrants’ Culture On Academic Outcomes At Elementary Level, Tonnette Samuels

Theses and Dissertations

This qualitative study explored how teachers, parents, and administrators perceived the influence of Haitian cultural values and practices on the organizational culture and academic outcomes of elementary students in a southern United States county. Guided by the resource-based view theory, which frames culture as an intangible organizational asset, the study used interpretative phenomenological analysis to examine the lived experiences of five participants, including three teachers, one parent, and one school administrator. Data were collected through semi structured interviews and analyzed to develop personal experiential themes for each participant and group experiential themes across cases.

The study’s findings generated four group …

Crisis In Care: A Qualitative Study To Understand The Factors That Influence High Turnover Among Florida’S Child Welfare Case Managers, Latasha R. Harris

Theses and Dissertations

This applied dissertation explores the factors influencing child welfare case manager turnover in Florida and how child welfare case managers are addressing those factors. National data has underscored the severity of this issue highlighting high turnover and low staff retention are attributed to work demand instability, chronic stressors and undermine the effectiveness of child welfare services.

This qualitative study investigates child welfare case managers’ perspectives on key influencing factors that determine child welfare case manager retention or influence their decision to leave. Guided by Motivation and Resiliency Theories, this qualitative descriptive study investigates child welfare case manager perspectives of why …

Toxic Culture In All-Star Cheerleading: A Qualitative Research Study, Jodie Fairbank

Theses and Dissertations

All-star cheerleading emerged in the late 1980s. It has grown exponentially over the last thirty years. Today, over 250,000 individuals participate in competitive cheer. The nature of this sport pushes elite athletes and has organizations worldwide. It incorporates stunting, dance, tumbling, and performance. In recent years, there have been numerous news stories, documentaries, and court cases that indicate that, behind all the glitter and excitement of the sport, there may be many instances of a toxic culture that is allowing the youth who participate in this sport to be susceptible to environments that may be detrimental to them in many …

How Do Students Come Across Occupational Therapy And What Makes Them Want To Study Occupational Therapy? Implications For Recruitment, Mette Eg Bruun, Mette Krohn, Sofie Balle Riis, Lene Tanggaard, Tina Helle

Journal of Occupational Therapy Education

Recruitment challenges in occupational therapy education vary globally. To address workforce needs, it is necessary to examine the factors influencing students’ decisions to pursue occupational therapy. This study investigated how students discovered occupational therapy, what they found appealing about the profession, the influence of study location, and demographic differences between students enrolled in an urban university city and a rural district. Three focus group interviews with 15 occupational therapy students were conducted, supplemented by descriptive statistics comparing student characteristics across urban and rural programs. Qualitative analysis identified five categories: (1) discovering occupational therapy by chance, (2) the power of occupational …