Digital Commons Network^™

Parkinson’S Disease Phenotype Stratification Using Multiple Correspondence Analysis, Kelly Astudillo

Dissertations, Theses, and Capstone Projects

Parkinson’s disease (PD) is the second most common neurodegenerative disorder, with over 12 million people projected to be affected by 2040 (Dorsey et al., 2018). Deep phenotyping and stratification can provide useful information regarding PD pathogenesis and can aid in the  development of disease modifying therapies that aim to delay the progression or prevent the onset of neurodegeneration (Blandini et al., 2019; Smith & Schapira, 2022). Utilizing multivariate methods such as multiple correspondence analysis (MCA) permits for the simultaneous analysis of distinct data modalities. To the best of our knowledge, MCA has not been previously used to explore phenotype patterns …

Variational Methods For Semilinear Pdes With Dirac Singularities, Samuel J. Magill

Dissertations, Theses, and Capstone Projects

This dissertation utilizes a variational framework for semilinear elliptic equations in two dimensions with Dirac measure data. The central objects of study are equations of the form −ΔU = f(U) + Σ_j=1^N α_jδ_pj on bounded Lipschitz domains Ω ⊂ ℝ² with homogeneous Dirichlet boundary condition, and on a flat torus 𝕋², where α_j is positive for the Dirichlet setting and α_j is negative on the torus. Solutions are obtained by minimizing the restriction of an energy functional to an order interval determined by explicit sub- and supersolutions; the Euler–Lagrange equation is recovered …

A Predictive Coding Account Of Spatial Working Memory Following Prophylactic Levetiracetam Administration Prior To Traumatic Brain Injury, Omeima Mutwali

Dissertations, Theses, and Capstone Projects

Traumatic brain injury (TBI) symptom prevention and remediation is an important area of research that would benefit vulnerable groups, including active-duty and veteran soldiers. These patients can sustain penetrative forces in fields of combat or in training, which result in focal lesions that trigger inflammatory and degenerative processes in the brain. Both primary and secondary injuries are associated with changes to cognition, behavior and affective state. This disease poses increased risk of epileptogenesis, as well. Given these outcomes, prior research has evaluated levetiracetam (LEV) as a prophylactic treatment for seizures, cognitive deficits and negative emotionality. LEV acts as a presynaptic …

The Exception: Refugee Camps And Governmental Control, Kyle L. Mans

Dissertations, Theses, and Capstone Projects

This capstone study examines the relationship between governmental control and the state of exception in refugee camps. This connection is analyzed by examining the control mechanisms employed by the nation state to erode the sovereignty of the individual within a refugee camp space. This study also examines how humanitarian organizations contribute to the perpetuation of the state of exception and how their involvement facilitates further state control. Included in this capstone are two case studies that examine both Libya and Kenya as examples of governmental control on the sovereignty of refugees and migrants. This research contributes to the overall understanding …

Essays On Behavioral Aspects Of Retail Operations, Ceren Gultekin

Dissertations, Theses, and Capstone Projects

This dissertation combines a structured literature review on availability signaling in retail with two analytical chapters on inventory disclosure. The literature review incorporates the design and key insights of a systematic review and identifies directions for future research. Inventory disclosure is a form of availability signaling through which retailers strategically communicate stock levels to influence consumer buy-now-or-wait decisions. To mitigate strategic purchase deferrals, retailers may share low stock to create urgency or mask high stock to prevent consumers from relying on abundance. Despite its importance for profitability, academic findings and industry practices vary widely, ranging from consistent sharing to consistent …

The Evolution Of U.S. Geoeconomic Grand Strategy Toward China And South Korea’S Strategic Space: A Comparative Analysis Of Neomercantilist Types In The Trump And Biden Administrations, Hyungbo Kim

Dissertations, Theses, and Capstone Projects

This study examines the evolutionary trajectory of U.S. geoeconomic grand strategy toward China from the inauguration of the first Trump administration in 2017, through the Biden administration, to the second Trump administration launched in 2025, while exploring South Korea’s survival strategies in response. The findings confirm that U.S. foreign economic policy has radicalized into "Expanded Malevolent Neomercantilism," which moves beyond simple protectionism to weaponize global economic networks in the name of national security and exploit even allies.

According to the analysis, the U.S. progressed from the "Malevolent Neomercantilism" of Trump's first term, which focused on trade deficits, to the "Developmental …

Unfreezing Language: A Decolonial Reframing Of Translanguaging Pedagogies In English As A New Language & Dual Language Bilingual Education Settings, Cristian R. Solorza

Dissertations, Theses, and Capstone Projects

This qualitative multi-case study examines how elementary teachers in English as a New Language (ENL) and Dual Language Bilingual Education (DLBE) settings conceptualize, implement, and reflect upon translanguaging pedagogies, with particular attention to translanguaging rings as tools for language differentiation. Grounded in a rearticulation of language as a dynamic, socially, politically, and historically constructed subject and object, this study challenges monoglossic ideologies that position named languages as bounded systems at the center of language education. Instead, it centers students’ lived, embodied, and agentive language practices as foundational to language learning and to their participation as knowledge producers in ENL and …

A Data Analysis Study Of Temperature Based On California Cooperative Oceanic Fisheries Investigations (Calcofi) Data., Afsana Mimi

Dissertations, Theses, and Capstone Projects

This research presents an integrated analytical framework for predicting ocean temperatures using long-term observations from the California Cooperative Oceanic Fisheries Investigations (CalCOFI) data files. The study applies advanced data engineering and statistical modeling to assess how a variety of indicators, such as salinity, dissolved oxygen, key nutrients, and ocean depth shape oceanic temperature patterns along the California coastline. Using Microsoft SQL Server software for large-scale data integration and the R for statistical packages (R Core Team, 2025) for statistical computation, I developed and compared multiple regression models, including the ridge regression model, to evaluate the relative influence of physical and …

Considering Numerical Relativity For Upgrades In Mcfacts Merger Dynamics, Shawn K. Ray

Dissertations, Theses, and Capstone Projects

Binary black hole mergers (BBH), some likely originating from active galactic nuclei (AGN), are observed by ground-based detectors such as LIGO-Virgo-KAGRA (LVK) and will be detected by future space-based detectors such as the Laser Interferometer Space Antenna (LISA) and the Laser Interferometer Lunar Antenna (LILA). The dynamics of AGN may be responsible for a significant fraction of BBH mergers soon to be observed by LISA and LILA, yet the dynamics of BBH mergers within AGN disks remains ambiguous despite their appearance in gravitational wave observations. Monte carlo For AGN Channel Testing and Simulation (McFACTS) is an open-source software used to …

Pedagogy Of Care: Exploring Climate Justice Frameworks In Cuny Undergraduate Courses, Ismerlyn Gonzalez

Dissertations, Theses, and Capstone Projects

Climate justice centers the human rights of communities most impacted by the climate crisis rather than solely focusing on the scientific aspects of environmental challenges and disasters. Higher education institutions play a key role in advancing climate justice education, but research shows that frameworks are not consistently defined across institutions. The IRB-approved study that produced the findings in this capstone sought to explore how climate justice frameworks are implemented at the CUNY undergraduate level and learn more about the instructors delivering these courses. From February to April 2026, instructors from different CUNY undergraduate campuses were surveyed, interviewed, and asked to …

Managing Multi-Channel Service Operations, Omer Berk Olmez

Dissertations, Theses, and Capstone Projects

In today’s evolving service landscape, the growth of virtual channels alongside traditional in-person services is changing how providers interact with customers and how services are delivered. This dissertation studies how service systems should be designed and managed when customers can choose between virtual and in-person channels through three connected perspectives: customer behavior, work design, and public policy. The first study examines booking-window design in a pooled multi-channel appointment system using appointment-level data from an undergraduate advising office, a queueing model, and a digital twin. It shows that booking windows shape the offered set and the flow of demand across channels, …

The New York City Fields Of Calcio Libero: Where Protagonists Activate Counter-Hegemony, Olivia Soderini

Dissertations, Theses, and Capstone Projects

Derivative from a deeply rooted calcio (“football”/ “soccer”) passion, with years of associated empiricism in diverse contexts, as well as from a profound intellectual interest in examining (im)migratory trends through interdisciplinary lenses, stems the development of this project’s topical focus and multi-dimensional argument. My calcio experiences, further combined with my interest in and knowledge of political and critical theory, served as the converged impetus of recognizing what already exists and is thriving: (im)migrant protagonism and counter-hegemony by way of New York City (“NYC”) calcio libero.[1] This project embarks on a creative autoethnographic and analytical journey to explore pickup’s …

An Ecological Approach To School Climate, Safety, And Space: Accounts From Educators, Architects, And Guidelines, Mahnaz Izadi

Dissertations, Theses, and Capstone Projects

This dissertation explores how the spatial and social contexts of schools interact to influence how school safety and climate are perceived and enacted. Using ecological psychology theories, I examined the perspectives of teachers, counselors, and architects, school stakeholders involved in school planning and operation at different times, with varying levels of control and involvement in the daily life of schools. The study investigates how these stakeholders think about school climate and safety, the strategies they employ to improve it, and the challenges they face in doing so.

This qualitative study employs semi-structured interviews with 11 teachers and 4 counselors from …

Inductive Biases In Field-Level Cosmological Inference From Galaxy Catalogs, James O'Connor Baldwin

Dissertations, Theses, and Capstone Projects

We perform field-level likelihood-free inference of the matter density parameter Ωm from simulated galaxy catalogs using machine learning models with differing inductive biases. Using features extracted from hydrodynamic simulations in the CAMELS suite, we investigate how both observable choice and model architecture govern the extraction of cosmological information. We consider galaxy positions and line-of-sight peculiar velocities, both separately and in combination, and compare permutation-invariant Deep Sets, implemented with either standard multilayer perceptrons (MLPs) or Kolmogorov–Arnold Networks (KANs), to graph neural networks (GNNs) implemented with MLPs, which explicitly encode spatial relations. We evaluate inference performance under both in-distribution and out-of-distribution (OOD) …

Conga Santiaguera: A Century Of Innovation And Competition, Nick Herman

Dissertations, Theses, and Capstone Projects

Santiago de Cuba is home to the island’s biggest, oldest, and most famous carnival.  Any local resident will confirm that “sin conga no hay carnaval (without conga there is no carnival).” In Santiago, conga refers to a vibrant street procession, the music that drives it, and the ensemble that makes the music.  Conga Santiaguera: A Century of Innovation and Competition presents a musical history of the conga from roughly 1910 to 2010.  This project, https://cuny.manifoldapp.org/projects/conga employs an eBook, musical analysis, oral histories, and audiovisual media to show how the conga has been constantly reinvigorated by innovation, competition, and Afro-Diasporic …

The Influence Of Chief Executive Officer Personality On Mergers And Acquisitions (M&A) Completion, Nikisha Alcindor

Dissertations, Theses, and Capstone Projects

In Mergers & Acquisitions (M&A), a deal is completed when it has been announced, a fully executed agreement is in place, and the target's ownership is consolidated with the acquirer. The completion of an M&A deal is vital because it is a labor-intensive process that requires a tremendous number of resources from the firm. Yet even though 39,494 deals were announced in 2025, few studies have examined the variables that influence deal completion. This dissertation examines whether the Chief Executive Officer (CEO)'s personality influences the likelihood of deal completion. CEOs typically initiate the deal and see it through to completion, …

Cooling Deserts For Renters: Heat Equity Inside The Nyc Housing System, Tahreem Ashraf

Dissertations, Theses, and Capstone Projects

This study introduces the Cooling Desert Index (CDI), a composite spatial measure designed to identify census tracts in New York City where extreme heat vulnerability and structural barriers to adaptive cooling converge. Drawing on five publicly available datasets and a seven phase statistical pipeline, the CDI scores all 2,231 NYC census tracts on a continuous 0 to 100 scale by integrating heat exposure, severe rent burden, household income, racial composition, language access, disability status, and housing crowding. The analysis identifies 557 cooling deserts, defined as tracts where environmental heat risk is high and financial constraints make effective cooling structurally inaccessible, …

Essays On The Economics Of Aging: Structural And Machine Learning Approaches, Alexander S. Kwon

Dissertations, Theses, and Capstone Projects

Population aging has made the study of older workers’ economic behavior increasingly important for understanding labor markets, retirement systems, and public policy. In many advanced economies, rising old-age dependency ratios have increased the need to understand labor-supply, retirement, and savings decisions later in life (OECD, 2025). In the United States, these issues are especially important because Social Security faces long-run financing pressure, with the Old-Age and Survivors Insurance Trust Fund projected to be depleted around 2033 (U.S. Social Security Administration, Office of the Chief Actuary, 2025). Longer life expectancy increases the expected length of retirement and raises the fiscal importance …

Vestigial Choreographies: Climate Consciousness In The Long Nineteenth Century, Alexandra A. Rego

Dissertations, Theses, and Capstone Projects

The aims of this project are twofold: (a) to develop a method of theoretical analysis and (b) to put this method into pointed use. In service of (a), I propose a method of choreographic analysis. This method operates relationally, highlighting the production of movement and stillness among and between bodies, objects, and encounters. Choreographic analysis draws from methods typically sequestered to dance studies. Towards aim (b), this project demonstrates the relevance and breadth of choreographic analysis by connecting it to ecocriticism. Throughout this project, I apply choreographic analysis to a diverse set of case studies. I use choreographic analysis to …

Beyond The Veil Of Modernity: René Guénon, Prophet Of The Metapolitical Imaginary, Frederic Colier

Dissertations, Theses, and Capstone Projects

Heralded by some as one of the greatest intellectuals of the 20th century, French metaphysician René Guénon (1886-1951) is also the controversial father of Primordial Tradition, a metaphysics designed to remedy the decline of Western civilization. Guénon viewed the West in the grip of a prolonged cycle of degeneration. He sought to implement a pseudo-authoritarian spiritual reset that required a total rejection of its Western intellectual heritage and an embrace of Eastern doctrines.

Focusing on his landmark book The Crisis of the Modern World (1927), the dissertation examines how Guénon implemented his controversial reset. After outlining the religious, cultural, and …

Profiling Nucleolin Phosphorylation During Dna Damage Response And Cell Cycle Arrest, Hanjun Jeon

Dissertations, Theses, and Capstone Projects

This dissertation examines site-specific and global phosphorylation dynamics of nucleolin (NCL) in response to DNA damage and cell-cycle perturbations. By combining phospho-specific immunoblotting with Phos-tag SDS-PAGE analysis, distinct phosphorylation patterns were identified across experimental conditions. The results define reproducible, condition-dependent phosphorylation states of NCL and provide a framework for studying its regulation under cellular stress.

Healing Historical-Intergenerational Trauma And Colonial Soul Wounds With Ancestral Healing Practices And Psychosocial Limpias: An Ofrenda For The Salvadoran Community, Joanna D. Beltrán Girón

Dissertations, Theses, and Capstone Projects

In 1992, the United States-backed Salvadoran military and the leftist guerrillas signed the Chapultepec Peace Accords, which put an end to a 12-year war in El Salvador that resulted in 75,000 deaths, 12,000 forced disappearances, and half a million internal displacements. Around 85% of the reports made by survivors of the war attributed the violence to state agents, paramilitary groups, and death squads.While taking into account this history of state violence, this dissertation is interested in the psychosocial aftermath of the war and in how survivors integrate healing practices in their lives in response to the painful memories their bodies …

Roe V. Wade With Audre And Nikki: Their Social And Political Impacts Following The Landmark Decision, Sharon L. Eaddy

Dissertations, Theses, and Capstone Projects

This thesis analyzes how the 1973 Supreme Court decision Roe v. Wade shaped public understandings of reproductive rights and how those understandings diverged across race, gender, class, and sexuality. Using a qualitative, interdisciplinary design, the study pairs close textual analysis of Nikki Giovanni’s and Audre Lorde’s poems and essays with socio-legal and historical context on constitutional privacy doctrine, the Ninth and Fourteenth Amendments, and the Reconstruction legacy of the Civil Rights Act of 1866. The central research question is: what kinds of reproductive “freedom” become legible through Roe’s rights-based framing, and what forms of constraint remain visible when Black …

Identifying Helium Emission-Line Stars With The Condor Array Telescope, Julia Stewart

Dissertations, Theses, and Capstone Projects

Helium emission-line stars, including cataclysmic variables (CVs), AM Canum Venaticorum (AM CVn) binaries, symbiotic stars, and X-ray binaries, are tracers of compact object binary populations in the Milky Way, and may be viable progenitor systems of Type Ia supernovae. Their space densities are not well constrained - just over 100 AM CVn stars are known out of a Galactic population that may be closer to 100,000. Identifying such systems in large numbers requires wide-field, narrow-band photometric surveys capable of detecting faint emission-line sources across significant sky areas.

In this thesis, I present a narrow-band photometric search for helium emission-line stars …

Building On Rented Land: An Interpretive Phenomenological Analysis Of Black Women’S Digital Homeplace-Building On Tiktok, Monica Thompson

Dissertations, Theses, and Capstone Projects

This interpretative phenomenological analysis (IPA) examined the lived experiences of seven Black women TikTok users, exploring how they describe and make meaning of TikTok as a space of digital expression amid algorithmic constraint and platform precarity. Grounded in Black Cyberfeminism, Critical Race Theory, and hooks’ (1990) homeplace theory, the study asked three questions: how Black women describe their use of TikTok; how they make meaning of the platform as a space of expression; and how they navigate platform instability, political threats, and content restrictions while maintaining authentic expression. Drawing on semi-structured Zoom interviews and analyzed using Smith et al.’s (2009) …

Reexamining The Croton Aqueduct: A Ward-Level Microhistorical Analysis Of Infrastructure And Cholera Mortality In 1849 New York City, Alexandria R. Toothman

Dissertations, Theses, and Capstone Projects

This work reexamines the Croton Aqueduct’s role in public health by shifting analysis from the citywide level to the ward level, revealing that infrastructure expansion did not produce uniform benefits across New York City. When the Croton Aqueduct opened in 1842, it was celebrated as an achievement that would deliver pure water and eliminate disease. However, only seven years after its opening, in 1849, cholera returned with greater force in the Sixth Ward. This work shows that the uneven distribution of Croton infrastructure corresponded with uneven cholera mortality rates, challenging narratives that present Croton as a singular triumph of urban …

Identifying Textual Predictors Of Early Termination In Clinical Trials In Medicine: An Explainable Machine-Learning Study, Rohan Ramnarain

Dissertations, Theses, and Capstone Projects

About one in five clinical trials in medicine ends early, wasting valuable resources and reducing the evidence available for developing life-saving medical treatments. This project uses a method called Trial2Vec, which is a self-supervised machine-learning method that converts clinical trial documents into dense numerical representations that capture their key design and clinical characteristics, to turn each proposed clinical trial’s written protocol into a compact numerical profile (a process referred to as embedding). These profiles are then paired with a predictive machine learning models to identify the words and phrases in the trial documents that can signal a higher risk of …

Lethal Autonomous Weapons Systems And The Principles Of Distinction And Proportionality, Nicholas Cromie

Dissertations, Theses, and Capstone Projects

Lethal Autonomous Weapons Systems (LAWS) challenge the core principles of International Humanitarian Law (IHL), distinction and proportionality, by delegating life-and-death decisions to algorithms rather than human judgment.  This dissertation examines whether LAWS can conform to these principles and, if so, under what conditions.  Through process tracing, the study traces the historical integration of disruptive weapons technologies, including chemical, biological, nuclear, and armed drones, into IHL-compliant frameworks or their exclusion via prohibition.  Each case reveals distinct pathways: outright bans for indiscriminate or inherently inhumane systems (chemical and biological weapons), normative restraint and limited acceptance despite destructive power (nuclear weapons) and phased …

Discovery Of Newly Resolved Filament And Extraplanar Gas In M33 With The Local Group L-Band Survey, Emma Taylor Kleiner

Dissertations, Theses, and Capstone Projects

The proximity of the Local Group allows for unparalleled resolution of the structure and kinematics of the ISM while simultaneously observing the overall rotation of the galaxy. These nearby galaxies present the opportunity to probe stellar feedback processes in various galactic environments. M33 in particular, offers insight into the nature of the extended neutral gas and its relationship with the star-forming disk and the surrounding CGM, by way of its classic star-forming spiral and relatively undisturbed system. Outside of M33’s distinguished warp, the galaxy offers little evidence of satellites and shows few signs of interaction, begging the question of how …

Visible Lives, Invisible Strands: Critical Consciousness And Civic Engagement Among Muslim Sa/Swana College Students, Firdevs Yigiter

Dissertations, Theses, and Capstone Projects

In recent years, young people have navigated an increasingly polarized sociopolitical climate marked by racism, Islamophobia, and heightened racial violence (Cureton, 2023; Wegemer et al., 2025). These tensions have intensified in the current moment, shaped by the aftermath of October 7, activism for Palestinian rights, and the political climate of the Trump Administration. College campuses, which historically are sites of political activism and social transformation, are not neutral spaces. For SA/SWANA Muslim college students, these dynamics are intensified by systematic marginalization and a polarized political climate (Khamis, 2023).  In this dissertation, I examine how SA/SWANA Muslim students experience ethnic-racial discrimination, …