Digital Commons Network^™

Role Of Central And Peripheral Nlrp3 In Parkinson's Disease Models, Elisa Carloni

Dartmouth College Ph.D Dissertations

Neuroinflammation, particularly NLRP3 inflammasome activation, has been implicated in Parkinson's disease (PD) neurodegeneration, but the cell-type-specific contributions of NLRP3 activity remain poorly understood. This dissertation tested whether NLRP3 activation in microglia versus peripherally derived myeloid cells differentially drives Parkinsonian pathology. Microglial NLRP3 gain-of-function was achieved using Nlrp3^L351P crossed with Tmem119-CreER, both on an Nlrp3^⁻/⁻background. For peripheral myeloid cells, an analogous Ms4a3-Cre-driven strategy resulted in perinatal lethality of animals with Nlrp3^L351P restricted to granulocyte-monocyte progenitors (GMPs). Instead, we used Ms4a3-Cre tdTomato reporter mice generated on wild-type and Nlrp3^⁻/⁻backgrounds to fate-map GMP-derived …

The Gut-Bladder Axis: How Symbiont Microbes Alter Urinary Tract Infections, Benjamin S. Olson

Arts & Sciences Graduate Student Theses and Dissertations

Urinary tract infections (UTIs) are among the most common bacterial infections worldwide. Consequently, they are one of the leading indications for antibiotic prescription. Despite the typically successful treatment of an acute UTI, recurrent infections are exceedingly common, particularly among women. Nearly a quarter of otherwise healthy women will suffer recurrent UTIs (rUTI) after a primary UTI; why these select individuals are continually afflicted is unkown. There are no successful therapeutics to treat rUTI representing a gap not just in the medical toolkit but in our understanding of why rUTI is so prevalent. There are many hypotheses for the risk factors …

Set-Valued Conjugate Calculus And Duality In Optimization And Machine Learning Via Generalized Relative Interiors, Gary Lee Sandine

Dissertations and Theses

Convex analysis, optimization, and duality theory are broadly applicable to a multitude of real-world problems. Theoretical frameworks ensuring strong duality and optimality are fundamentally tied to convex separation under qualification conditions frequently involving topological or relative interiors. These can be empty in convex sets that appear naturally in infinite-dimensional models, yet guarantees of optimality and strong duality are often attainable. This dissertation presents frameworks for applying convex separation via generalized relative interiors to develop generalized calculus rules as well as conditions for strong duality and optimality for infinite-dimensional constrained convex optimization problems.

The first major contribution is the introduction of …

The Influence Of Urban Form On The Distribution Of Air Pollutants, Takin Khosrownia

Dissertations and Theses

Urban form exerts strong control on how pollution from outside a city is transported through the urban canopy and experienced at street level. This study uses the prognostic microclimate model ENVI-met to simulate an active pollutant released from an upwind rural highway and advected through an urban region represented by ten Local Climate Zone (LCZ) types. The cases share identical inflow and are isothermal, dry, and non-vegetated, so that differences among them are attributable to building morphology alone. PM2.5 is the primary exposure diagnostic. Its transport and ejection are characterized through plan-view contours, vertical plume sections, and spatially averaged streamwise …

Contradiction And Critical Consciousness: Engaging Canadian University Students In Racial Dialogue On Anti-Chinese Racism, Dan Cui

Journal of Comparative & International Higher Education

This study examines how Canadian university students perceived and engaged with anti-Chinese racism during the COVID-19 pandemic. Drawing on grounded theory and interviews and written reflections from 28 undergraduates at a predominantly White university, the study analyzes students’ contradictory understandings of racism shaped by media, national narratives, and prior educational experiences. Informed by Bourdieu’s concept of habitus, it conceptualizes these tensions as a contradictory racialized habitus, in which awareness and denial, empathy and distancing, coexist. Three themes emerged: contradictory orientations toward anti-Chinese racism, the transnational influence of U.S. political discourse, and the limited transformative impact of a social justice course. …

“It’S Very Racialized And Very Politicized”: International Educators Recount The Campus And Local Climate For International Students, Amanda R. Corso, Gaurav Harshe, Chrystal George Mwangi, Christina W Yao

Journal of Comparative & International Higher Education

International educators have served as the primary support system for international students and are responsible for supporting international students through navigating racist encounters often without feeling adequately prepared (George Mwangi et al., 2025; Yao et al., 2019). With a diverse learning environment model as our framework, our study explored how international educators in the United States make sense of their racialized local and campus contexts, specifically in their work with international students. Using a three-dimensional approach to narrative inquiry, we interviewed 31 participants from New York, Massachusetts, California, and Michigan who worked in international student and scholar offices. Our findings …

Not Quite Foreign, Never Fully Belonging: Racialization Of Southbound Policy Students In Taiwan, Garima Jha

Journal of Comparative & International Higher Education

This paper critically examines how race and racialization shape the socio-cultural adjustment experiences of international students from New Southbound policy (NSP) countries in Taiwan. Drawing from a qualitative part conducted for my master’s thesis, which explored the coping strategies and adjustment processes of seven students from Southeast and South Asia through semi-structured interview, I reframe the data to center race as an analytical lens using the conceptual framework proposed by Glasgow (2009) which explains that racialization as the process through which social meanings are attached to perceived cultural or bodily differences, creating and maintaining hierarchies among groups. and Brondolo et …

Transnational Racialization: An Exploratory Case Study Of Asian International Students In U.S. Higher Education, Jia Zheng, Kristyn Lue

Journal of Comparative & International Higher Education

This exploratory case study examines the transnational racialization experiences of 14 ethnically diverse Asian International Students (AIS) studying abroad in the U.S. Using International Student Critical Race Theory to foreground the contexts of participants’ home countries, we ask: What are AIS’s experiences with transnational racialization? Findings suggest that AIS are socialized to the racial dynamics of the U.S. through: (1) the different contexts of their home countries, (2) their specific social positioning within these contexts, (3) the influence of Western narratives across the globe, and (4) their academic communities in the U.S. Our findings advance theoretical perspectives on racialization in …

Resurrecting Anti-Apartheid Solidarity: Scholasticide, Race, And The Politics Of Internationalization In Higher Education, Divinia Jithoo, Alia Gilbrecht

Journal of Comparative & International Higher Education

This paper interrogates how racialized internationalization and epistemic injustice shape global higher education through a comparative critical analysis of South African and Palestinian academic resistance. Drawing on decolonial theory (Du Plessis, 2021) and Fricker’s (2007) framework of epistemic injustice, we examine how scholasticide—the deliberate destruction of Palestinian educational institutions—reveals higher education as a targeted site of racialized domination rather than a neutral casualty of war. Our findings show that normalization, sustained through Global South partnerships with Israeli institutions, functions as a racialized mode of internationalization that obscures complicity in settler-colonial violence. These dynamics are reinforced by transnational anti-Palestinian racism, a …

Decolonizing Raciolinguistic Ideologies In Institutions Of Higher Learning, Chantelle M. August-Mowers, Samantha M. Hoffman

Journal of Comparative & International Higher Education

This article examines how raciolinguistic ideologies shape global higher education (HE), highlighting the intersection of language, race, and systemic inequalities. English often functions as a gatekeeper, privileging certain knowledge systems while marginalizing students and faculty from the Global South (Flores & Rosa, 2015; Pennycook, 2007). Structural inequities persist in faculty recruitment, international student selection, and academic publishing, reflecting colonial legacies and epistemic injustice (Canagarajah, 2013; Quijano, 2000). Racialized and linguistically marginalized students experience exclusion, microaggressions, and limited mobility, revealing contradictions between diversity rhetoric and institutional practices (Sekaja, 2022; Enslin, 2024). The study advocates decolonial and multilingual interventions, including translanguaging, inclusive …

Modeling Stellar Structure: Comparing Numerical Solutions Of The Lane-Emden Equation, Jasman Jasmanjot, Bailey Dale, Ryan Dickey

Discovery Day - Daytona Beach

The Lane-Emden equation is a differential equation that is often used in astrophysics to describe the distribution of the density inside a star, and by extension, its pressure distribution. Analytic solutions of the Lane-Emden equation can only be found at polytropic indices n = 0,1,5, matching certain physical conditions. For all other polytropic values, a numerical solution is needed. In this work, a comparison between two numerical schemes for solving the Lane-Emden equation is presented, namely the Euler method and the classical 4th order Runge-Kutta method. The accuracy of these models is first compared to the cases with known analytical …

Determinants And Invertibility In Finite Modular Systems, Osasu Omobude

Discovery Day - Daytona Beach

This project investigates determinants and matrix invertibility in finite modular systems, focusing on matrices over Zn. Using the Hill cipher as context, it examines the algebraic conditions under which a matrix is invertible in modular arithmetic. In particular, the project studies how the determinant determines invertibility, showing that a matrix over Zn is invertible if and only if its determinant is coprime with n.   The project further compares invertibility over the real numbers with invertibility over modular systems, highlighting the distinction between prime moduli Zp and composite moduli. In the prime case, matrices behave similarly to those over fields, where …

Student Perceptions On Resubmission Policies In An Upper-Level Engineering Course, Tess Hagstrom

Discovery Day - Daytona Beach

Little is known about how resubmission policies affect students in upper-level engineering courses. Previous studies in a lower-level engineering course at Embry-Riddle found that students had a positive perception of the implementation of resubmission policies in relation to their confidence, performance, and sense of belonging. Students also reported that the policies helped them grow through feedback and mistakes, as well as helped improve their learning in the course. To investigate how students perceive these policies in a higher-level course, students in an upper-level mechanical engineering course at Embry-Riddle were given the opportunity to resubmit quizzes after they received their feedback. …

Project 337, Kaushal Meda, Tuhin Misra, Pranav Rathi, Vraj Patel, Diivyaang Desa, Sameera Patki, Vaidehi Saini, Roy Su

Discovery Day - Daytona Beach

Access to critical medical infrastructure and supplies can be limited in rural and remote communities, where long travel distances and limited transportation networks can delay emergency response/care. In fact, according to the National Library of Medicine, in the United States alone, “about 20% of the US population—more than 50 million people—live in rural areas, but only 9% of the nation's physicians practice in rural communities”, highlighting the challenges many communities face in accessing timely medical resources. Unmanned aerial vehicles (UAVs), however, offer a potential solution by providing fast and flexible delivery of critical life support medical payloads. Project 337, developed …

Designing Process-Focused Feedback For College Writers Using Genai, Beata Blood, Maissane Aik, Zoey Zaldivar

Discovery Day - Daytona Beach

As generative AI tools like ChatGPT become more common in higher education, writing instructors face the challenge of guiding students toward effective and ethical use, particularly in asynchronous environments where immediate feedback is limited. This presentation reports on an exploratory study that addresses this challenge by shifting attention from AI’s outputs to students’ moment-by-moment writing processes. Grounded in applied linguistics approaches to writing research and process-tracing methods, the project employed case studies with both expert and novice users of GenAI. Expert participants, including academics and industry professionals, completed writing tasks while integrating AI into their workflows. Their sessions were recorded …

Recommendations For An International Regulatory Regime For Commercial Space, Margaret O'Brien

Discovery Day - Daytona Beach

The rapid advancement of space technologies in both governmental and private sectors presents a significant challenge for existing space law frameworks. Emerging activities such as space mining are gaining international attention, yet lawmakers struggle to craft regulations for an industry that is still in development. Innovators and investors often hesitate to assume risk in the absence of clear international guidelines. This research explores the complex legal and policy considerations surrounding space resource utilization, including the lack of consensus with existing treaties, the unpredictability of potential hazards, and the widening technological gap between industrialized and developing nations. Historical frameworks, such as …

Eliminating Range Constraints For Optical Tracking Of Sub-10 Cm Orbital Debris, James Kirk

Discovery Day - Daytona Beach

The growing population of orbital debris, including a significant amount of debris ranging from 1 to 10 cm, has substantially increased the risk to satellites. Due to the sheer number and high velocities, debris ranging from 1 to 10 cm still has the ability to cause mission-ending damage while remaining undetectable by ground-based detection facilities. This study utilizes the NASA Standard Satellite Breakup Model (NASA SSBM), combined with MATLAB, to propagate debris clouds over extended durations, enabling the identification of high-detection zones and debris rings. Using the modeled spacecraft environment, a satellite was positioned below the debris ring altitudes. Lowering …

Starlink-Based Navigation System For Fixed-Wing Uav, Aidan Panter, Ayse Okatan, Spencer Richter, Carson Frankovic, Faheem Khan, Eldon Crossett, Oleg Sugatov, Dylan Hardt

Discovery Day - Daytona Beach

Conventional UAV navigation and control systems rely on short-range RF communication, imposing significant limitations on operational range, real-time control capabilities, and autonomous mission execution beyond visual line of sight (BVLOS). While existing research addresses regulatory frameworks, communication relay strategies, and positioning optimization for extended-range operations, a comprehensive and cost-effective solution integrating satellite-based Internet connectivity with web-accessible control remains absent from the literature. This project develops a Starlink-based navigation and control system for fixed-wing UAVs that overcomes traditional range constraints through low-earth orbit satellite and cell network connectivity. The system integrates a Starlink terminal with an onboard flight computer running custom …

Numerical Modeling Of Thermo-Poroelasticity Using Finite Element Method, Maya Mckean

Discovery Day - Daytona Beach

We propose a numerical method for solving and modeling thermo-poroelasticity problems using a finite element formulation. Thermo-poroelasticity models describe the coupled interaction between mechanical deformation, fluid flow, and heat transfer in specific materials or environments over time. These models demonstrate the evolution of displacement, pressure, and temperature; we compute these fields in this work using backward Euler time discretization and Enriched Galerkin finite element spatial discretization. For these computations we used FreeFEM, a partial differential equation solver that uses the finite element method, which produced our numerical results. We then compared these values with the expected analytical solution. This was …

Numerical Methods For Nonlinear Problems Using The Finite Element Method, Logan Price

Discovery Day - Daytona Beach

Numerical Methods for Nonlinear Problems Using the Finite Element Method is a computational mathematics capstone that builds and tests finite element method (FEM) workflows for nonlinear partial differential equations in FreeFEM++, with ParaView used for visualization. Two nonlinear model problems are used to demonstrate the approach. The first is a semilinear reaction-diffusion equation with a cubic nonlinearity. A manufactured solution is used so accuracy can be checked at a fixed final time, and refinement studies in both time step and mesh size are run while nonlinear iteration counts are tracked to show solver effort. The second problem is the steady …

Estimating The Effects Of Dark Matter Capture On The Sun Using Asteria And Analytic Stellar Scaling, Skylar G. Butler

Discovery Day - Daytona Beach

We investigate how the internal structure of the Sun would change if dark matter particles were present at densities predicted by Galactic halo models. Dark matter capture rates were computed using the Python code Asteria, which implements the multi-element capture formalism of Gould (1987) to determine the rate at which dark matter particles scatter and become gravitationally bound inside the Sun. Because Asteria calculates only the capture rate, we developed a post-processing Python-based analysis to estimate the resulting physical effects using analytic scaling relations from previous solar dark matter studies. These relations were used to compute the effective dark matter …

Measuring Lyman Continuum Photon Luminosity In H Ii Regions, Brianna Johnshon

Discovery Day - Daytona Beach

This project focuses on measuring the Lyman continuum photon luminosity (Lc) of diffuse H II regions using multi-line observations from the Wisconsin H-Alpha Mapper (WHAM). Previous work by Sahan & Haffner (2016) analyzed the λ Ori region in Hα, [S II], and [N II], which I build on by refining assumptions about distance, extinction, and background emission, as well as extending the analysis to additional regions such as Perseus. To define the extent of each H II region, I identify the brightest Hα beam and select surrounding beams within 0.25σ of that peak. I then applied two different approaches to …

Human Factors And Passenger Survival In Aircraft Emergency Evacuations, Anjelysa Oleszewski, Adam Dvorak, Anthony Bulko, Christopher Lee, Nicholas Murphy

Discovery Day - Daytona Beach

In the event of an emergency where evacuation of the aircraft is necessary, passengers have 90 seconds to locate their nearest exit and egress as safely and quickly as possible. However, news outlets have reported multiple occurrences of passengers evacuating and taking their belongings with them during this decade. The root of this hazard occurs in multiple areas of flight, particularly during safety briefings and during emergency evacuations. The purpose of this project is to focus on improving passenger knowledge of safety features such as exit door locations through digital mediums and strengthen deliverance of life-saving information. The project shares …

Classification Of Sequential Factors In Aviation Accident Cause Prediction, Sophia Nasca, Addyson Wolfe

Discovery Day - Daytona Beach

Uncovering the root causes of aviation accidents is a critical component of improving aviation safety. Traditional approaches are largely reactive, relying on post-incident analysis rather than proactively identifying risk factors. This project addresses the need for proactive safety by using a multi-source dataset that integrates aviation accident records, weather conditions, and maintenance data extracted from investigative reports. The objective of this work is to move beyond predicting broad probable causes and instead model the sequence of contributing factors that lead to aviation incidents. Using the Swiss Cheese Model, the study will capture layered failures across operational, environmental, and maintenance domains. …

Low-Complexity Polynomial Ring Learning For Quantum Space Assets, Lola Torres

Discovery Day - Daytona Beach

Secure communication for space-based systems requires cryptographic methods that remain both reliable and efficient under strict computational constraints. This work investigates a low-complexity polynomial ring learning algorithm designed for quantum space assets, including satellite–ground communication systems. The project focuses on post-quantum cryptographic principles, where encryption and decryption rely heavily on repeated polynomial operations; this can be computationally expensive with constrained platforms. This is addressed with reformulating polynomial multiplication as a structured linear transformation on coefficient vectors. By representing these operations as matrices with a cyclic structure, the structure allows the use of the discrete Fourier transform (DFT); this will simplify …

M.O.D.U.S. Modular Optical Design Using Specular Film, Mario Gutierrez, Robert Thibodeau, Emma Show, Desiree Robinson, Lingyuan Meng, Sean Martin, Conner Beeson

Discovery Day - Daytona Beach

High-quality parabolic mirrors, which are vital components in reflecting telescopes, are typically bulky, costly, and highly fragile. This experiment explores the feasibility of using specular Class B Mylar as an unconventional, lightweight, and cost-effective alternative. This approach could enable new telescope designs by greatly reducing weight and manufacturing expenses, while also opening options for potential adaptability.   This approach involves using Mylar, a flexible, reflective style of plastic. The mylar is formed into a concave mirror by stretching a sheet over a chamber and depressurizing one side to force the sheet into the necessary curved shape. Multiple designs are being created …

Quantitative Mapping And Mitigation Of Light Pollution At Erau, Desireé Robinson, Marcus Flesher, Axon Deadrick, Conner Callahan, Jarrett Usui, Josef Kaelin, Douglas Griswold, Raiden Keefer, Harrison A. Zimmermann, Cole Gresham, Maya Curtis, Ahnika Gee

Discovery Day - Daytona Beach

Light pollution is an increasingly urgent environmental and public safety concern that affects energy costs, astronomical research, ecological systems, human health, and aviation. At Embry-Riddle Aeronautical University (ERAU), artificial lighting from campus infrastructure and adjacent airport operations contributes to elevated skyglow, limiting the performance of the university’s 1-meter telescope and degrading the nighttime environment. This project seeks to quantitatively map and analyze light pollution across the ERAU Daytona Beach campus using custom-built Sky Quality Meters (SQMs) integrated with environmental sensors and mounted on an unmanned aerial system (UAS). By collecting calibrated sky brightness measurements at multiple altitudes and geospatial coordinates, …

The Mystery Of Ngc2264-196'S Pulsation, Matthew Hernandez, Jadia Renee Ewing, Leila Alamos, Jacob R. Romeo, Kaelyn Weddle, Divyeshwari Vansadia, Thomas Matney, Marcus Flesher, Desiree Robinson, Alexandra Beianu

Discovery Day - Daytona Beach

Matthew Hernandez, Jadia R. Ewing, Leila Alamos, Jacob Romeo, Kaelyn Weddle, Vansadia, TJ Matney, Maybelline A. Flesher, Desiree Robinson, Alexandra Beianu Faculty Mentor: Dr. Stephen D. Gillam Department of Physical Sciences Embry-Riddle Aeronautical University, Daytona Beach, FL USA.   March 2026 This study investigates the pulsation characteristics of NGC 2264-196, a chemically peculiar star within the young open cluster NGC 2264. Classification as a suspected Rapidly Oscillating Ap (roAp) star is supported by its spectral type (F5/7) and the recurring detection of a pulsation frequency near 3.01~ mHz. Photometric data was obtained over eight recorded oscillations: 121520UT, 111923UT, 070124UT, 080124UT, 012525UT, …

Small Uas Detection: Threat Intelligence & Risk Management Project, Tyler Johnson

Discovery Day - Daytona Beach

The TRANSPORTATION SECURITY ADMINISTRATION / FEDERAL AIR MARSHAL SUAS DETECTION: THREAT INTELLIGENCE & RISK MANAGEMENT PROJECT addresses the emerging safety and security challenges posed by the rapid growth of small Unmanned Aircraft Systems (sUAS) in complex airspace environments. This study analyzed 92 days of sensor-captured Remote Identification (RID) data collected near Fort Lauderdale-Hollywood International Airport (FLL) to assess operational behaviors, aviation risk, and ground risk associated with drone activity. The primary objective of this research is to identify patterns of unauthorized or hazardous sUAS operations to enhance situational awareness and inform actionable risk-mitigation strategies. The analysis identified 335 flights from …

Preliminary Jetpack Design For Air, Space, And Sea Applications, Andrew Thummel

Discovery Day - Daytona Beach

This course work is intended as an exploratory engineering and design program dedicated to the building and testing of an underwater jetpack design, using dynamic similarity principles to extrapolate how tested results and performance in an underwater environment transition to airborne or zero gravity testing. By testing underwater, it is estimated that the design will attain a Reynolds number in the range of 8 to 10 million, creating novel qualitative research on how a blended wing body jetpack design built at human scale performs and handles in extremely turbulent and high Reynolds number flows.