Digital Commons Network^™

Nonlinear Physics Of Parity-Broken Fluids, Sudheesh Srivastava

Dissertations, Theses, and Capstone Projects

This thesis explores parity-breaking mechanisms, nonlinear wave phenomena, and localization transitions across different physical contexts. First, we examine modulation instability in parity-breaking systems, deriving modified nonlinear Schr¨odinger equations that reveal direction dependent instabilities. Next, we investigate wave turbulence, demonstrating numerically that parity-breaking dispersion significantly alters turbulent cascades and modifies their statistical properties. Lastly, we analyze localization in quasiperiodic tight- binding model based on polariton condensate lattice. Collectively, these studies illustrate the universal role of symmetries and nonlinear interactions in shaping macroscopic behaviors, facilitating interdisciplinary insights.

Nurturing The Student Voice And Its Creative Power In Mathematics Teaching And Learning: Research With Students On Emotion, Imagination, And Understanding., Luis Adolfo Zambrano

Dissertations, Theses, and Capstone Projects

This research in mathematics education explores the teaching and learning of mathematics at the high school and community college levels, integrating diverse research methods to examine how educators can cultivate a dynamic, collaborative, and responsive classroom climate. Framed by K. Tobin and K. Alexakos’s authentic inquiry education research framework (2020), the methodology actively engages students as co-researchers, valuing their insights and experiences as integral to the learning process. This approach fosters a meaningful dialogue on managing emotional and cognitive challenges faced by students of mathematics while identifying strategies to support and enhance students’ innate imaginative and creative capacities.

Grounded in …

Breaking Out Of Burnout: Leveraging Informal Learning To Encourage Needs Satisfaction To Reduce Employee Burnout, Kaitlin Busse

Dissertations, Theses, and Capstone Projects

Given its negative effects on employees and organizations, burnout is seen as a crucial concern in the workplace. To combat burnout, researchers and organizations have explored some individual-level strategies to manage work-related stress effectively. An overlooked employee-driven strategy is informal learning within the workplace. While existing research has focused on learning outside work hours for stress recovery, the current study examined whether informal learning at work is a beneficial proactive behavior for employees to help alleviate stress in real-time, and thus, potentially reducing burnout. Specifically, the current research was interested in whether employees’ psychological needs at work would be satisfied …

Placemaking And Belonging In Brooklyn: Bushwick City Farms, Marisa Cigliano

Dissertations, Theses, and Capstone Projects

Since the spring of 2022, New York City has seen an increased rate of newly-arrived migrants from countries in Latin and Central America, Asia, and Africa. In accordance with the city’s “right to shelter” obligation, NYC has provided shelter for migrants by converting hotels, office buildings, and even tents, into make-shift lodging designed for temporary stay. Within a year, anti-immigrant rhetoric from Mayor Eric Adams sparked activism from both immigrant rights organizations and long-term residents who don’t want migrant shelters in their neighborhoods. These shelters lack the necessary food, privacy, social services, and structure that is owed to homeless residents …

Disturbance And Diversity: Lichens In Changing Landscapes, Laura Boggess

Dissertations, Theses, and Capstone Projects

Disturbance is a fundamental ecological force that shapes biodiversity, community composition, and ecosystem function. Human-driven disturbances—such as habitat fragmentation, deforestation, and air pollution—are increasing worldwide, altering ecosystems at unprecedented rates. While ecological research has illuminated many effects of disturbance, significant knowledge gaps remain for underappreciated but ecologically vital organisms, such as lichens. Lichens are obligate symbioses between at least one fungus and one alga or cyanobacterium. As such, they are sensitive bioindicators of environmental change, offering unique insights into ecosystem health due to their responses to stressors such as poor air quality, habitat fragmentation, and deforestation. Yet, their responses to …

Exploring Guyanese Identity In Nyc: A Research Exploration, Shivanie E. Hariram

Dissertations, Theses, and Capstone Projects

This study explores racial and ethnic self-identification among members of the Guyanese diaspora in New York City, with particular emphasis on individuals who select "Other" as their racial or ethnic category. Utilizing an IRB-approved quantitative methodology, data was collected through a structured survey targeting Indo-, Afro-, and mixed-heritage Guyanese populations. Drawing on Stuart Hall’s Cultural Identity Theory and Cultural Hybridization Theory, this research analyzes how participants negotiate potentially fluid identities within social contexts that often favor rigid racial categorizations. My findings indicate that those who identify as "Other Race" frequently resist binary classifications, instead constructing hybrid forms of "Guyanese-ness" that …

The Long Arm Of The Law: The Far-Reaching Effects Of The Carceral State On Families, Madison Squiers

Dissertations, Theses, and Capstone Projects

This thesis investigates the extended consequences of mass incarceration in the United States, focusing on the social, economic, and psychological impacts on the nuclear families of incarcerated individuals. Through a comprehensive literature review of peer-reviewed studies published between 2000 and 2024, this study highlights how female partners and children of imprisoned men face significant hardships, including emotional trauma, financial instability, and social stigma. These burdens are most acutely experienced by low-income families and communities of color, reflecting broader patterns of structural inequality. The findings underscore how punitive criminal justice policies—especially mandatory minimum sentencing and the War on Drugs—have created ripple …

The Impact Of Voluntary Disclosure Of Customers’ Names On Firm Value, Mu Li

Dissertations, Theses, and Capstone Projects

Customers are a primary source of a firm’s revenue, and a firm’s relationships with its customers are one of the key factors of its success. To reduce information asymmetry regarding customers, the U.S. Securities and Exchange Commission (SEC) mandates that all publicly traded firms disclose sales to major customers who account for more than 10% of the firm’s consolidated sales. Firms may voluntarily disclose more customer information such as customers’ names. While managers may be concerned with the financial implications of such voluntary disclosure, no studies to date have explored how it impacts firm value. Using a sample of 768 …

Diversity Initiatives In Higher Education: Understanding The Experiences Of Black Males In Cuny’S Nyc Men Teach, Fatima Sherif

Dissertations, Theses, and Capstone Projects

This qualitative study examines the experiences of Black males in New York City Men Teach (NYCMT), a diversity initiative designed to increase the representation of Black male educators. Despite efforts, Black men remain underrepresented in education. Drawing from narrative-inquiry and guided by Critical Race theory and the Radical Care framework, this research explores how participants experience NYCMT and what their stories reveal about the effectiveness of diversity initiatives. Data from Semi-structured interviews were analyzed using thematic analysis, revealing five key themes: community, financial benefits, mentoring, professional development, and challenges. Findings show that while NYCMT offers critical emotional, financial, and structural …

Exploring The Enstatite Chondrites: Modal Abundances, Metamorphic History, And Volatile Challenges, Mabel Gray

Dissertations, Theses, and Capstone Projects

This thesis investigates the formation conditions, thermal histories, and volatile inventories of enstatite chondrites (ECs). A diverse set of ECs is analyzed to capture the broad variability within this meteorite class. Chapter 1 presents a comparative analysis of mineral abundances using automated point counting, X-ray diffraction analysis, and XMapTools-based phase mapping. The results reveal significant variations in silicate and sulfide abundances across EC groups, challenging the conventional binary classification and suggesting distinct formation conditions. Chapter 2 explores the thermal histories of two highly equilibrated EH chondrites, proposing a novel formation mechanism on the parent asteroid: contact metamorphism driven by an …

Menstrual Math: The Price Of Bleeding, Gabrielle Langston

Dissertations, Theses, and Capstone Projects

This project examines the landscape of menstrual equity in the United States through a data storytelling lens, focusing on state-level policies regarding taxation and access to menstrual products. The analysis explores which states impose sales tax on menstrual products, if state schools provide free menstrual products, and which states ensure access for incarcerated individuals using publicly available datasets from advocacy groups. Additionally, there is an investigation into potential correlations between the gender wage gap and states that tax menstrual products, shedding light on economic and policy disparities.

Through its data visualizations, this project aims to provide a clear, although not …

Community Safety Innovations: New York State Initiatives To Strengthen Public Safety, Justice D. Evans, Elia Del Carmen Solano-Patricio, Rebecca Balletto, Kathleen A. Tomberg, Jeffrey A. Butts

Publications and Research

This report presents findings from researchers at the Research and Evaluation Center at John Jay College (JohnJayREC) regarding the impact of state investments in community safety. The report highlights key initiatives such as the SNUG program, Gun Involved Violence Elimination (GIVE), Project RISE, and Crime Analysis Centers (CACs). Through interviews with State agency staff and initiative leaders, the research team gathered valuable insights into the goals, challenges, and implementation of these programs. The findings suggest that these efforts may contribute to reduced violence and enhanced neighborhood safety, though further, more robust evaluation could help refine and expand these efforts for …

Transmedial Econarratology: Environment And The Subject Of Science Fiction, Joseph R. Boisvere

Dissertations, Theses, and Capstone Projects

This dissertation argues that narrators are constructed by their interactions with diegetic space and time in an ecological relationship. This argument draws upon Erin James’s work on econarratology, particularly her book The Storyworld Accord: Econarratology and Postcolonial Narratives, putting her theories of narrating time and place in dialogue with contemporary “unnatural” narratology as theorized by scholars such as Jan Alber and Brian Richardson. Science fiction (SF) offers a rich complement to these theoretical stances. I also focus much of my dissertation on how narratology works across and is influenced by specific media, featuring literary, audiovisual, and digital media, including novels, …

The Origins Of German Industrialization: The Transition To Capitalism In Prussian Agriculture, Daniel C. Colligan

Dissertations, Theses, and Capstone Projects

This dissertation seeks to explain the origins of German industrialization. Historical accounts of German industrialization often chronicle the process of its development but leave reasons for its initiation unexplained. Theories that have attempted to locate the roots of rapid German economic growth have been found to be empirically unsatisfactory, and thus the accepted story has defaulted to a gradualist narrative which conceptualizes economic behavior as fundamentally unchanging throughout German history. This dissertation challenges this reigning view, attempting to provide an explanation for why Germany embarked on a rapid economic growth trajectory in the nineteenth century whereas many other similarly situated …

Decoding The Plant Metabolome: A Metabolomics Approach To Guereza (Colobus Guereza) Feeding Ecology In Kibale National Park, Uganda, Emma Grace Thurau

Dissertations, Theses, and Capstone Projects

Plant metabolites, an elusive and diverse group of plant chemicals, represent a complex chemical interplay between plants and herbivores. Plants contain essential nutrients necessary for herbivore survival, yet herbivore consumption results in negative fitness consequences to a plant. This relationship has triggered a coevolutionary arms race in which plants have evolved chemical defenses to prevent herbivore consumption and herbivores, in response, have evolved their own counter-adaptations. This arms race has led to the diverse numbers of herbivores and plants observed today; therefore, these plant metabolites act as a signature of evolution through their influence on herbivore adaptations. Plant metabolites are …

Understanding How Genetic Mutations Induce Oligodendrocyte Progenitors To Become Cancer Cells, Dennis Huang

Dissertations, Theses, and Capstone Projects

Gliomas are the most devastating adult brain tumors characterized by poor survival rate and limited options for treatment. Previous studies have shown that they are very heterogeneous and can be further sub-classified based on their transcriptional signature and the presence of specific mutations. One such subtype, is the “proneural glioma”, which is characterized by the enrichment in oligodendrocyte progenitor cell (OPC) transcripts and mutations in genes encoding for the tumor suppressor P53 (Trp53) and for Platelet Derived Grow Factor (PDGF) signaling. Since OPCs are the most abundant proliferative population in the adult brain, in this …

Tracing My Roots: An Exploratory Data Visualization And Analysis Of Jewish Immigration And Assimilation To New York City, Jamie E. Gelberg

Dissertations, Theses, and Capstone Projects

As my Capstone, I explored the complex process of immigrant assimilation to New York City from the late 19th century and beyond through a personal lens, using my Ashkenazi Jewish family as a case study.

I outlined and analyzed relevant demographic data from the US Census Bureau, Berman Jewish DataBank, and other sources to understand New York City during this period and how Jewish immigrants fit into the story. I focused on my family history, immigration and settlement, social assimilation, and economic status. I also incorporated personal narratives from my family history from 3 generations. These narratives help provide context …

Single Mother Poverty In A Global City, Gregory Cala

Dissertations, Theses, and Capstone Projects

The thesis explores how New York City's emergence as a "Global City" and welfare reform uniquely impacted single mothers’ lives on the matter of labor, housing, cost of living and more. New York City’s recovery from near bankruptcy in the 1970s began after cutting social programs and luring corporate firms with financial incentives. As firms moved to the city, so did their workforce of employees with skills in specialized service roles. Concurrently, the need for cheap, part-time, and temporary services emerged. By the 1990s, the growth of these less specialized service jobs outpaced all others, all while calls for work …

Global Constructions Of Gender, Sexuality, And Migration: An Analysis Of Five Immigrant Memoirs, Grace Halvorson

Dissertations, Theses, and Capstone Projects

This capstone analyzes five memoirs by LGBTQ+ migrants—Jose Antonio Vargas, Edafe Okporo, Staceyann Chin, Danny Ramadan, and Samra Habib—to explore how governments weaponize gender and sexual orientation to construct national identity and exert control over both citizens and migrants. Their diverse migration experiences highlight how “gender border control” operates across families, communities, and national government systems, reinforcing heteronormative structures that regulate queer identities. My analysis of their memoirs reveals how both formal tools, such as immigration policies, and informal tools, such as social exclusion, make individuals outside heteronormative identity categories susceptible to state and societal violence. These personal narratives shed …

Parametrization Of Formal Norm Compatible Sequences, Joseph Dicapua

Dissertations, Theses, and Capstone Projects

We give a classification of power series parametrizing Lubin-Tate trace compatible sequences. This proof answers a question posed in the literature by Berger and Fourquaux. Lubin-Tate trace compatible sequences are a generalization of norm compatible sequences, which arise in Iwasawa theory and local class field theory. The result we prove generalizes the interpolation theorem proved by Coleman in the classical norm compatible sequence case. We also, jointly with Victor Kolyvagin, give a method for finding such series explicitly in certain special cases.

Sla Evaluation And Composition In Reconfigurable Cloud-Based Services, Michael Iannelli

Dissertations, Theses, and Capstone Projects

Given the business model of offering data and computing services in a cloud setting, a major question arises: How do the services of one cloud provider compare to those of others? With the ubiquitous use of smartphones and tablets, the ability of a cloud provider to support QoS and client mobility becomes paramount. This research proposes a methodology for evaluating service-level agreements (SLAs) between cloud providers and their consumers, with a particular focus on dynamic SLA composition to adapt to changes in the application requirements and the external environment—such as traffic surges, security threats, or evolving business models.

In one …

The Ethnobotany And Pharmacology Of Medicinal Plants For Caribbean Women’S Health, Ella Thomas Vardeman

Dissertations, Theses, and Capstone Projects

Approximately 55% of the world’s population lives in cities, and the United Nations estimates that this number will rise to 68% by 2050. Urban ethnobotany, the study of people’s traditional knowledge and use of plants in cities, is increasingly important as people adapt their cultural traditions to changing environments. In New York City (NYC), there have been several urban ethnobotany investigations in collaboration with Caribbean immigrant groups. However, there has yet to be an ethnobotanical survey that documents and botanically authenticates the medicinal plants used in the Haitian community. Previous collaborative research with women from the Caribbean in NYC has …

The Warmth Of Welcome Of Refugees And Migrants In The Western Balkans, Zylfie Demushi

Dissertations, Theses, and Capstone Projects

Despite it getting harder to immigrate to the EU legally, refugees from the global south still try to immigrate to developed countries in the EU through transit states in the Balkan region. In search of refuge from wars, better economic prospects, or family reunions, over the past decade, many migrants have attempted to travel North through transit states like North Macedonia, Albania, and Montenegro. A qualitative study was conducted following a theoretical approach by Adamson and Tsourapas (2019), who categorized migration states in the global south into three types, i.e., nationalizing, developmental, or neoliberal. The paper followed this approach to …

Elucidating The Roles Of Eukaryotic Initiation Factors Involved In Dap5 Mediated Translation, Jacob Nk Quartey

Dissertations, Theses, and Capstone Projects

Translation initiation in eukaryotes is a highly regulated process essential for accurate protein synthesis. It is a dynamic process that involves a complex interplay between messenger RNAs (mRNAs), ribosomal subunits, and a host of initiation factors, ensuring precise start codon selection and the subsequent assembly of the translation machinery. This process has well been known to be mediated by the eukaryotic Initiation Factor (eIF4F), which consists of the cap binding protein eIF4E, the scaffolding protein eIF4GI, and the helicase factor eIF4A.The recognition and binding of eIF4E to the m⁷G cap structure of the mRNA is essential for the …

Unveiling The Vital Role Of Blue Carbon In Mangroves: Understanding Environmental Influences, Jahnelle Howe

Dissertations, Theses, and Capstone Projects

Mangrove ecosystems provide essential ecological services, including carbon sequestration, coastal protection, and heavy metal retention. However, their resilience and functionality are increasingly influenced by hurricanes, climate variability, and anthropogenic contamination. This dissertation integrates three research efforts examining mangrove canopy dynamics, carbon storage, and heavy metal contamination in two Puerto Rican mangrove systems: La Parguera and Laguna Grande.

Using remote sensing techniques (LiDAR and NDVI analysis), we assessed the impact of Hurricane Maria (Category 4, 2017) on mangrove canopy structure and vegetation health. Results revealed significant canopy height loss, with greater damage at Laguna Grande, where pre-storm canopy height and human …

Creative Coding Communities: Exploring The Relationship Between Scratch Use And Child Well-Being, Nikita Khalid

Dissertations, Theses, and Capstone Projects

This international study assessed the relationship between the use of Scratch, the world's largest coding community for children, and child well-being. Specifically, the study focused on the presence of well-being indicators in the RITEC-8 framework (RITEC, 2024) including creativity, relationships, competence, and autonomy within Scratch users’ behaviors. The participants (N = 17,315) included children aged between 8 and 16 who used Scratch in 2023 and came from 29 countries. The study examined trends in Scratchers’ behaviors including project creation, sharing, studio curation, and socialization based on their country of origin, gender and age. The data were used to construct user …

Parvalbumin Interneuron-Oligodendrocyte Interactions In The Infralimbic Cortex Promote Extracellular Plasticity Mechanisms After Safety Learning, Lucy Emma Denholtz

Dissertations, Theses, and Capstone Projects

The ability to differentiate between threat and safety cues is essential for adaptive behavior, yet this process is disrupted in psychiatric disorders, such as post-traumatic stress disorder (PTSD), where safety cues fail to downregulate fear expression. To better understand the neurobiological mechanisms of safety learning, I investigate how safety conditioning vs contextual fear conditioning modify behavioral and cellular mechanisms in the infralimbic (IL) region of the medial prefrontal cortex (mPFC) at several time points after learning. Through this work, I identify a novel mechanism whereby safety learning promotes learning dependent neuro-glial interactions that promote conditions for plasticity in the mPFC. …

Re/Inventing Desire: Asexuality As A Tool For Utopian Intimacies, Amaranta Martinez Martinez

Dissertations, Theses, and Capstone Projects

Asexuality became widely known in 2001 when David Jay, launched the Asexuality, Visibility and Education Network (AVEN), however, it’s been just throughout the last decade that it has gained popularity among LGBTQ studies. This thesis explores asexuality beyond its conventional framing as a sexual orientation, positioning it instead as a theoretical framework with the potential to challenge hegemonic understandings of sexuality. It does so by tracing the historical construction of sexual desire through the discipline of sexology, demonstrating how its discourses helped reinforce compulsory sexuality—the expectation that individuals must experience and act upon sexual desire (Emens 2014). Building upon this …

Spirometry: For The Winds In Us, Kendall Allison

Dissertations, Theses, and Capstone Projects

Spirometers are devices used to measure lung capacity. This capstone is a creative study of what restores our breathing aptitude as a response to the suffocating and alienating consequences of whiteness for people racialized as white. The project is a sequence of lyric essays. The first lyric essay frames whiteness as a condition of exile and examines the cultural and emotional currents that shore it up. I use exile as a frame to emphasize the intensity of the spiritual and cultural alienation that people racialized as white experience. I also contextualize the dis-ease of suicide in my own lineage, and …

The Sub-Syllabic Symphonies Of Self-Learning: How Do Zebra Finches Sing Them?, Abiesha Abiola Budiman

Dissertations, Theses, and Capstone Projects

Learning is a lifelong journey, where the mind and muscle dance to a tune of memory and motion. It begins at infancy and continues throughout life, encompassing everything from singing to achieving peak performance in sports. Complex motor skills involve multiple components and require coordination of several muscles. Humans and animals are extremely adept at learning complex motor skills on their own. However, we do not completely understand how self-directed learning works. One group of animals used to observe self-directed learning are songbirds. Zebra finches, Taeniopygia guttata, are one of the most studied songbird species due to their well-defined …