Digital Commons Network^™

Nuclear Magnetic Resonance Characterization For The Study Of Beyond Lithium-Ion Battery Electrolytes, Allen Zheng

Dissertations, Theses, and Capstone Projects

To achieve a sustainable future, key issues in the energy and construction sectors such as the transition from fossil fuels to renewable energy sources and recycling of waste construction materials must be addressed. While fossil fuels offer a high energy density source of quick, consistent energy, renewable energy sources such as wind, solar, and hydroelectric offer intermittent energy output, requiring energy storage systems to maintain steady energy availability for consumers. Lithium-ion batteries (LIBs) are widely used in consumer electronics, electric vehicles, and grid storage due to their high energy density, low self-discharge, and rechargeability. However, they are limited by high …

The Effect Of Tbi On Working Memory And Anxiety In Rats, Mariola Sobolewska

Dissertations, Theses, and Capstone Projects

Traumatic Brain Injury (TBI) is a significant public health concern, often leading to cognitive and emotional impairments. This study examined the effects of TBI on working memory and anxiety-like behavior in young male Sprague-Dawley rats using the Radial Arm Maze (RAM) and Elevated Plus Maze (EPM), which are behavioral assessments. The RAM tests spatial working memory by evaluating the animal’s ability to remember and efficiently navigate multiple arms to retrieve rewards. The EPM assesses anxiety-like behavior based on the animal’s preference for open versus closed arms. The study utilized young male Sprague-Dawley rats, a well-established rodent model known for its …

Bmp Signaling Co-Regulation Of Immune Response And Lipid Metabolism, Katerina K. Yamamoto

Dissertations, Theses, and Capstone Projects

The Bone Morphogenetic Proteins (BMPs) are secreted peptide ligands of the Transforming Growth Factor beta (TGF-β) family, initially identified for their roles in development and differentiation across animal species. They are now increasingly recognized for their roles in physiology and infectious disease. In the nematode Caenorhabditis elegans, the BMP ligand DBL-1 controls fat metabolism and immune response, in addition to its roles in body size regulation and development. DBL-1 regulates classical aspects of innate immunity, including the induction of anti-microbial peptides. We theorized that BMP-dependent regulation of fat metabolism could also promote resilience against microbial pathogens. We found that …

Text-Based Propaganda Detection, Vivek Sharma

Dissertations, Theses, and Capstone Projects

In the digital age, the swift consumption of news and the widespread dissemination of propaganda significantly threaten democratic principles and informed decision-making. News organizations, often aligned politically, tailor their content to appeal to specific audiences, thereby perpetuating biases. Despite advancements in detecting propaganda through various computational techniques, including Large Language Models(LLM) and BERT-based approaches, significant challenges persist concerning data availability and the effectiveness of detection tools. This thesis explores the landscape of text-based propaganda and reviews related research in textual analysis. It introduces a novel method for collecting a social-media based dataset, which includes analysis of journalists' tweets to discern …

Between The Buffer And The Black Box: Ed(1), Invisible Text, And Delegation In Word Processing, Kai Prenger

Dissertations, Theses, and Capstone Projects

This thesis provides a media archaeological and theoretical examination of ed(1), the Unix line editor developed by Ken Thompson at Bell Labs in 1969, arguing that its approach to "invisible text" processing established lasting patterns of human-computer collaboration that persist in contemporary digital systems. Through historical research, technical analysis, and critical interpretation, this study demonstrates how ed(1) embodied a particular epistemology of text processing that appears alien in a contemporary context, but proves insightful in the age of generative text creation.

ed(1) emerged from the unique convergence of Bell Labs' collaborative research culture, severe hardware constraints of early Unix systems, …

Some Puzzles Concerning Gujarati Nominalized Verbs In Before And After Sentences, Priya P. Patel

Dissertations, Theses, and Capstone Projects

Aspect, which relates events to time periods, interacts in complex ways with temporal operators. This complexity is exemplified in the Gujarati language, where certain imperfective nominalized verbal forms are considered unacceptable with the temporal operator pachi (after) but not with pehlaa (before). This paper aims to shed light on this semantic unacceptability by combining insights from prior studies relating to aspect in other Indo-Aryan langauages with previous work done on English before and after.

Online Resources For Oral Communication Courses, Sean P. Palmer

Dissertations, Theses, and Capstone Projects

Online resources focusing on oral communication skills are lacking, even as online education itself expands. While I was aware of this lack, I didn’t realize its severity until LaGuardia Community College went fully remote during the 2020 global pandemic, and I was looking for online tutoring aids for oral communication. Furthermore, the information presented online is frequently unsuitable for the purposes of online pedagogy due to its specialized and jargony mode of presentation. Also, many existing assignments involving oral communication assume public speaking as the default model, despite the growing importance of emergent digital modes of oral performance, like podcasting …

Prerogative In Common: On The Emancipatory Potential Of Radical Mutuality Amid Sovereign Decisionism, Matthew Builes

Dissertations, Theses, and Capstone Projects

In times of crisis, liberal democracies resort to authoritarian measures that undermine core democratic values. Dominant thought in the study of emergency-era law and politics appeal to a dichotomy of normal and exceptional times, to critique or justify the turn to sovereign decisionism. While this strategy seems clear-cut, the persistence of exceptional spaces and the crises that supposedly generate them challenge existing frameworks by blurring the line between norm and exception. This project explores the prospect of radical mutual aid, as a transformative response to the enduring crisis of modernity.

Detecting Sonic Hedgehog Expression In The Adult Mouse Brain Using A Gene Expression Tracer, Kendra Stephens-Jones

Dissertations, Theses, and Capstone Projects

Sonic Hedgehog (Shh) is best known for its role in development, yet evidence supports Shh signaling plays a functional role in the adult brain. Previous work demonstrated that Shh is expressed by dopamine (DA) neurons in the ventral midbrain and that loss of Shh from these neurons leads to late-onset motor and structural abnormalities resembling Parkinson’s disease. However, the extent of Shh expression and its connectivity to the striatum in the adult mouse brain remain unclear due to the lack of reliable antibodies for Shh detection. To address this gap, the present study employed Shh ^L/L and DAT-Cre^+/- mice …

Re-Envisioning Digital Agency: From Representationalism To Interpretant-Driven Epistemology, Michael C. Lee

Dissertations, Theses, and Capstone Projects

This thesis examines the epistemological and ethical foundations of digital technologies, particularly code and algorithmic systems, by considering their entanglement with representationalism. Arguing that code now functions as a dominant social agent and epistemic subject, through the concept of the Code’s-eye view, I explore how automated datafication reduces human experience to quantifiable inputs, reinforcing epistemic closure and social fragmentation. Drawing on pragmatist philosophy, including Peirce’s semiotics, Dewey’s democratic ethics, and Rorty’s conversational inquiry, I propose an interpretant-driven epistemology grounded in communal inquiry and interpretive openness. This alternative framework resists the binary logic of algorithmic rationality by emphasizing conflict and the …

Mechanisms Of Sleep Regulation In Drosophila Melanogaster, Anfal A. Abuhilal

Dissertations, Theses, and Capstone Projects

Sleep is a fundamental biological need, and sufficient sleep is required for physical and mental well-being. Sleep is regulated by two biological mechanisms: sleep-wake homeostasis and circadian rhythm. Circadian rhythms are near 24-h rhythms in behavior and physiology that are generated by endogenous mechanisms. In mammals, the suprachiasmatic nucleus (SCN) is the central circadian pacemaker, which is known to receive a significant amount of serotonergic input that likely modulates sleep rhythms. In addition to circadian modulation, sleep is subject to homeostatic regulation. Several neuromodulators have been proposed as mediators of sleep homeostasis. Serotonin has been implicated in sleep drive and …

Double Exposure: Motherhood And Filmmaking, Eddy Berzak

Dissertations, Theses, and Capstone Projects

This capstone project explores the intersection of motherhood and filmmaking through a reflexive documentary that examines how women directors have historically navigated the tensions between creative careers and raising children. Drawing on feminist film theory and autoethnographic methods, the fourteen-minute video essay analyzes three pioneering autobiographical documentaries from the 1970s—Joyce at 34 (1973), Nana, Mom and Me (1974), and Women Are Naturally Creative: Agnès Varda (1977)—alongside original footage documenting my own experience as a mother with deferred filmmaking aspirations. The project employs reflexive documentary techniques to weave together film analysis and personal narrative, investigating the central question: why didn't I …

Flotsam And Jetsam: The Role Of Mlb Integration In The Wreckage Of The Negro Leagues, Nastasia Pollas

Dissertations, Theses, and Capstone Projects

“We are the ship, all else the sea.” Adapted from a Frederick Douglass speech, this quote by Rube Foster became the slogan of the Negro Leagues, illustrating the resolve and determination to prosper alone during a time of segregation. Setting aside long-standing rivalry and strife, Black baseball teams united under a shared vision of forming the first professional Black baseball league.

This paper examines how Giddens' structuration theory, connecting social structures with individual actions, can explain both the development and success of the league under segregation and its eventual demise during integration.

Unveiling The Precision Of Physiological Signals In Prediction Error During Fear Learning: Insights From Associative Strength And Generalized Uncertainty, Haja H. Jallo-Jamboria

Dissertations, Theses, and Capstone Projects

Prediction error (PE) is the discrepancy between expected and actual outcomes. It is a central mechanism in associative learning particularly within fear-conditioning paradigms. Identifying physiological markers of PE in aversive contexts has important implications for refining learning models and enhancing clinical interventions for anxiety-related disorders. This study examined skin conductance response (SCR) as a potential physiological index of PE by analyzing both anticipatory and omission-related responses across multiple learning phases. Participants completed a Pavlovian fear-conditioning paradigm in which two conditioned stimuli (CS+) signaled threat at different reinforcement probabilities: CS+100 (certain threat) and CS+50 (uncertain threat), alongside a non-reinforced safety cue …

Behavioral Biomarkers Of Vulnerability In The Aba Model, Nora Ozer

Dissertations, Theses, and Capstone Projects

Anorexia nervosa (AN) is a severe psychiatric disorder with the highest mortality rate among mental health conditions, yet effective biological treatments remain limited. The activity-based anorexia (ABA) paradigm, which combines food restriction with wheel access to model the hyperactivity and self-starvation cycle characteristic of AN, shows considerable individual variability in vulnerability. Understanding what predisposes certain individuals to develop the full ABA phenotype while others remain resilient could inform early intervention strategies for human AN. This study employed continuous behavioral monitoring technology to identify early predictors of vulnerability to activity-based anorexia in mice, with the goal of discovering behavioral biomarkers that …

Structural Characterization Of A Tarantula Toxin And Its Interactions With Lipid Bilayers And Voltage-Gated Sodium Channels, Krishnakoli Adhikary

Dissertations, Theses, and Capstone Projects

Voltage-gated ion channels are membrane protein complexes. They allow the selective flow of their respective ions down an electrochemical gradient through a central ion conduction pore surrounded by four voltage-sensing domains (VSDs). Various neurological and cardiovascular diseases are caused by mutations in voltage-gated ion channels (VGICs). One of the biggest challenges today is addiction to opioid medication. Coming up with non-opioid drug leads can be a real blessing for society. This is where voltage-gated sodium channel research comes in. Na_v1.7, Na_v1.8, and Na_v1.9 are responsible for pain sensations. Loss or gain of function in …

Refining Orbits And Revealing Origins: A Study Of Giant Exoplanets Around Low-Mass Stars, Angeli Sandoval

Dissertations, Theses, and Capstone Projects

The study of gas giants around low-mass stars offers important insight into planet formation. Core accretion models predict that these planets should have a low likelihood of forming due to the limited disk masses of their host low-mass stars. However, NASA space missions such as Kepler and TESS have revealed an emerging population of Saturn- and Jupiter-like planets around M-dwarfs (referred to as giant exoplanets orbiting M-dwarfs or GEMS) that challenge these expectations. This thesis investigates the detection, confirmation, and analysis of GEMS through pipeline development and a detailed analysis of two systems.

In Chapter 1, I provide background information …

Processing Of Diphthongs By Turkish English Bilinguals: An Erp Study, Ecem Kopuz

Dissertations, Theses, and Capstone Projects

This study examines how native phonological experience influences the brain’s response to speech sounds in Turkish-English late bilinguals and English monolinguals. We asked whether neural responses reflecting encoding of auditory information would be sensitive to language specific experience. Using event-related potentials (ERPs), and specifically, the Acoustic Change Complex (ACC) we measured neural responses to four stimuli, /u/, /ua/, /iu/, and /ia/, where vowel quality changes for three of these. A change from /u/ to /a/ or /i/ to /a/ within a syllable (as in [ua] and [ia]) represents a clear vowel quality shift. All participants were expected to show sensitivity …

The Role Of Water In Peptide Behavior And Peptide-Based Water-Responsive Crystals, Janel Jannette Rivera Cancel

Dissertations, Theses, and Capstone Projects

Water plays a crucial role in shaping the behavior and function of biomolecules across the liquid, supercooled, and glassy states. This thesis presents a dual approach combining computational simulations and experimental investigations to explore the influence of water on biomolecular systems, particularly peptide-based materials. We employ molecular dynamics simulations to study the hydration-dependent structural dynamics of homopolymer peptides. Simulations were carried out across a range of temperatures and pressures to analyze changes in hydration and structural stability, shedding light on the behavior of peptides under supercooled and glassy conditions. These studies are especially relevant for understanding biomolecular stability in cryopreservation. …

Crisis Narratives And The Vicissitudes Of Haitian Foodways: A Critical Comparison Of Three Food Items, Marc S. Gabriel

Dissertations, Theses, and Capstone Projects

Polities and media external to Haiti direct a lot of narrative focus on the country being the source of its own protracted crises. This represents a powerful narrative hegemony that casts the post-colonial nation as a zone of perpetual disasters or crisis. To maintain that narrative domination over Haiti, opportunistic observers of Haiti’s media spectacles of crisis only need to atomize the country’s newest crisis or natural disaster from the history that situates it. The elision of the Haitian memory – a memory of structural adjustment programs, systematic displacement, foreign-sponsored paramilitary violence, erosion of peasant foodways and agriculture – from …

Reinforcement Learning Based Resource Management In Edge Systems, Motahare Mounesan

Dissertations, Theses, and Capstone Projects

Modern end-user applications that are highly compute- and data-intensive, while being extremely latency- and accuracy-sensitive, are increasingly reliant on distributed computing. This paradigm spans a range of architectures, from cloud computing to in-device processing. Cloud computing, though scalable, often incurs high latency and cost, constraints that are particularly problematic for time-sensitive applications. In contrast, in-device computing on end or IoT devices is limited by resource constraints, making it inadequate for many complex workloads. Edge computing presents a compelling alternative by bringing computation closer to data sources, thereby reducing end-to-end latency and improving responsiveness. However, the inherent decentralized and dynamic nature …

Satellite-Host Galaxy Co-Evolution With Next-Generation Regulator Models, Austen Gabrielpillai

Dissertations, Theses, and Capstone Projects

The evolution of satellites galaxies is an unsolved problem in galaxy formation. Recent observations such as the SAGA and ELVES surveys find tension in HI contents and star formation of satellites around their central host galaxies when compared to our own local environment, the Milky Way. These processes are potentially highly influenced by the host's circumgalactic medium (CGM), and to constrain these cases requires accurate and fast modeling of satellites-host interactions. In this work, we present our methodology for evolving z = 0 surviving satellites alongside their central galaxy in sapphire, a CGM regulator co-evolution model of galaxy formation. …

Improving The Assessment Of Functional Ability In Older Adults, Aneela Rahman

Dissertations, Theses, and Capstone Projects

Deficits in instrumental activities of daily living (IADL) are a hallmark of dementia, and the unprecedented aging of the population strongly motivates early identification of older adults at-risk for functional decline. In 2015, the White House Conference on Aging emphasized the need to improve detection of diminished capacity across important areas of functioning. To date, there is very limited research on early IADL changes in cognitively unimpaired (CU) individuals and those with subjective cognitive decline (SCD) and mild cognitive impairment (MCI), who may be in early preclinical dementia stages. Additionally, little is known about how changes in functional brain networks …

Tradition, Individuality, And Innovation In Western Classical Music Performance: A Quantitative Analysis Of Bach’S Fourth Cello Suite Prelude, Clare Monfredo

Dissertations, Theses, and Capstone Projects

Why do we seek out new performances of a commonly performed piece of music? An essential tradition of Western classical music (WCM) is the performance of canonical works by composers, an activity that requires the interpretation and execution of written scores by individual performers. In this practice, performers are not only expected to determine the composer’s “intentions,” but also somehow (paradoxically) share these in a “unique” performance interpretation. In musical education, performers are trained by teachers to create these “unique” interpretations by learning how to intuit composers’ intentions in a system that passes down interpretative traditions through master-apprentice one-on-one lessons. …

Effect Of Short-Chain Polymer Binders On The Mechanical And Electrochemical Performance Of Silicon Anodes, Fei Sun, L. Zurita-Garcia, Dean R. Wheeler

Faculty Publications

Polymer binders are crucial components in providing both mechanical support and chemical stability to the structure of porous Li-ion electrodes. Particularly in silicon anodes, the active material undergoes substantial volume expansion of up to 275%. Due to the mechanical constraint of the current collector, these silicon materials tend to expand in the normal direction while exhibiting substantial particle rearrangement and plastic deformation. Conventional rigid binders such as polyacrylic acid (PAA) and polyimide (PI), while providing satisfactory initial capacity, do not eliminate diminished long-term performance. Our research attempts to develop binder formulations that can accommodate sufficient flexibility for the substantial volume …

Temporal Patterns Of New Product Introductions And Ipo Value: The Importance Of Recency, Dispersion, And Asymmetry, Suyun Mah, Rebecca J. Slotegraaf, Girish Mallapragada

Research Collection Lee Kong Chian School Of Business

A firm’s innovation activity is often judged by the number and type of new products it launches, but when these products are introduced may be equally important, especially before going public. This research investigates how the temporal pattern of new product introductions (NPIs) influences a firm’s initial public offering (IPO) value. The analysis uses data from 298 firms that went public between 2006 and 2023, and focuses on three patterns of timing: recency (how recently the latest product was launched before the IPO), dispersion (the degree to which NPIs before the IPO are spread out over time), and asymmetry (how …

Why Stressed Candidates Make Better Cross-Cultural Hires, Shilpa Madan

Research Collection Lee Kong Chian School Of Business

When interviewing job candidates, you may look for evidence that they stay calm under pressure and interpret signs of stress as red flags. However, our recent research shows that for cross-cultural positions, those red flags might actually indicate your best potential hires. Candidates who exhibit signs of stress may be better suited to navigate the complexities of cross-cultural roles, suggesting a need to reassess traditional interview evaluations.

Esg News, Future Cash Flows, And Firm Value, Francois Derrien, Philipp Krüger, Augustin Landier, Tianhao Yao

Research Collection Lee Kong Chian School Of Business

We investigate the expected consequences of negative environmental, social, and governance (ESG) news on firms' future profits. After learning about negative ESG news, analysts significantly downgrade their forecasts at short and longer horizons. Negative ESG news affects forecasts more strongly at longer horizons than other types of negative corporate news. The negative revisions of earnings forecasts following negative ESG news largely reflect expectations of lower future sales, rather than higher future costs. Quantitatively, forecast revisions can explain most of the negative impacts of ESG news on firm value. Analysts are correct to revise forecasts downward following negative ESG news.

Clark Tailings Consolidated Waste Management Area (Ctcwma) Site Investigation Draft Data Summary Report 2019 Surface Water, Groundwater Seep, And Soil Characterization 2021-2023 Surface Water And Groundwater Seep Evaluation 2023 Waterloo Aps Soil And Groundwater Evaluation, Woodard & Curran

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Converting Counterfeiters In Emerging Markets To Authorized Suppliers: A New Anti-Counterfeiting Measure, Liling Lu, Xin Fang, Sarah Yini Gao, Burak Kazaz

Research Collection Lee Kong Chian School Of Business

With more products being infringed by counterfeits, anti-counterfeiting measures, such as law enforcement and consumer education, have commonly been adopted in emerging markets. In recent years, “super fakes,” i.e., counterfeits of high quality, have become popular. Super fake manufacturers’ capability to produce high-quality products inspires a new anti-counterfeiting measure: converting counterfeiters to authorized suppliers. To study the effectiveness of this anticounterfeiting measure, our paper employs a game-theoretic model to examine the interactions between a brand-name firm with its home supplier, and a counterfeiter who produces high-quality counterfeits and can be potentially converted to an authorized overseas supplier. Our results show …