Digital Commons Network^™

Natural Striatal Signaling Dynamics During Food Approach, Devry Mourra

Dissertations, Theses, and Capstone Projects

Reduced dopamine (DA) signaling has been hypothesized to induce compulsive overeating in obesity. However, DA signaling facilitates food pursuit by acting on direct and indirect pathways. This disparity between why individuals compulsively overeat despite decreased DA and satiety signals is unclear. Characterizing how DA and direct/indirect pathways respond to satiation may elucidate how satiety signals become overwritten in obesity. The food's palatability may underlie this, which is putatively thought to override the satiety hormones since it directly increases DA signaling, resulting in the increased appetitive drive. We determined the pattern of dopamine and pathway-specific medium spiny neuron (MSN) activity across …

Analyzing The Linguistic Features Of Standardized Math Items: A Text Mining Approach, Magdalen A. Beiting-Parrish

Dissertations, Theses, and Capstone Projects

The following is a five-chapter dissertation surrounding the use of text mining techniques for better understanding the language of mathematics items from standardized tests to improve linguistic equity of these items to support assessment of English Language Learners.

Introduction: The dissertation begins with an overview of the problem that English Language Learners are likely not able to demonstrate their full mathematical ability due to the construct irrelevant variance caused by these items being written in English. This introduction also introduces the idea of text mining as a methodology for use in exploring this test design issue.

Article 1: This article …

Does A Neural Network Inflect Spanish Verbs In A Human-Like Way?, Elizabeth Garza

Dissertations, Theses, and Capstone Projects

How do children learn that a verb like negar-‘to deny’ / niego - ‘I deny’ diphthongizes the 1st person present indicative, while it’s near minimal pair, pegar-‘to stick’ / pego - ‘I stick’, does not? To pursue this question, three small experiments were conducted in Spanish, given its complex and rich morphology. The first experiment was conducted to determine whether the Tolerance Principle of the Rules & Competition model (Yang, 2018) can accurately determine the productivity of verb classes in Spanish, and whether any irregular verb classes are exhibit subregular productivity. The second experiment was conducted to determine …

Effects Of Redundancy Of Multimedia Instruction On Spanish Reading And Listening Skills, Charles Raffaele

Dissertations, Theses, and Capstone Projects

The redundancy principle of multimedia learning indicates that people learn better from graphics and narration simultaneously than from graphics, narration, and printed text simultaneously. The current study investigated whether the redundancy principle may apply to multimedia instruction of correspondences between a second language (L2) and a native language’s reading and listening content. 100 college students in New York City learned correspondences between Spanish and English words and phrases in a counterbalanced within-subjects design, from three trials of video instruction that was redundant (including text as captions) or non-redundant (including text as non-concurrent text slides). For each condition, participants completed tests …

Virtual Reality Supplement To The Peers Social Skills Intervention For Adolescents With Asd, Kevin Ambrose

Dissertations, Theses, and Capstone Projects

The purpose of this study was to replicate findings of the Program for the Education and Enrichment of Relation Skills (PEERS) parent-assisted social skills training program for a diverse group of adolescents with historical autism spectrum disorder (ASD) diagnoses in an urban locality. Additionally, this study sought to pilot a 3D multi-user virtual environment for adolescent participants and an online learning community for parent coaches; both hypothesized to reinforce the social skills curriculum. A randomized controlled trial of PEERS was completed with 12 adolescents diagnosed with ASD with some participation from their caregivers. Results show that participants who received the …

Destination Icaic: Cosmopolitan Intellectuals, Documentary Film And The Image Of The Cuban 1960s, Gabriel Arce-Riocabo Rollins

Dissertations, Theses, and Capstone Projects

This study analyzes the interaction between foreign intellectuals and ICAIC (Instituto cubano de artes e industrias cinematográficas) in shaping the image of Cuba in the 1960s. I make the case that the idea of Revolution was a product of cosmopolitan intellectual engagement and that in this process documentary film was a privileged medium. By tracing the development of normative stories of commitment, cosmopolitanism, and aesthetic experimentation embodied both in written texts and travel essay films, I argue that such circulation destabilizes fixed ideas of Cuban, Revolutionary or Intellectual. The archive of Danish filmmaker and ICAIC collaborator Theodor Christensen as well …

Finite Gaussian Neurons: Defending Against Adversarial Attacks By Making Neural Networks Say "I Don’T Know", Felix Grezes

Dissertations, Theses, and Capstone Projects

In this work, I introduce the Finite Gaussian Neuron (FGN), a novel neuron architecture for artificial neural networks aimed at protecting against adversarial attacks.
Since 2014, artificial neural networks have been known to be vulnerable to adversarial attacks, which can fool the network into producing wrong or nonsensical outputs by making humanly imperceptible alterations to inputs. While defenses against adversarial attacks have been proposed, they usually involve retraining a new neural network from scratch, a costly task.

My works aims to:
- easily convert existing models to Finite Gaussian Neuron architecture,
- while preserving the existing model's behavior on real …

The Euro And Bumps In The Road: Historical Patterns Of Nonresident Holdings In Eurozone Bonds, 1980–2018, Michael H. Scarlatos

Dissertations, Theses, and Capstone Projects

A developed bond market which attracts nonresident investors both enables and reflects a host currency’s transition from domestic to international status. My analysis of historical private nonresident holdings of Eurozone portfolio debt securities spanning the euro’s 1999 creation and its subsequent 2008 crisis reveals diverging patterns.

This analysis, complemented by coefficient stability tests, discovers that the conversion of national currencies to the euro was reflected by a pickup in nonresident holdings of bonds issued by countries adopting the euro, especially those of the periphery (Portugal, Ireland, Italy and Spain) relative to the core (Germany, Austria, Belgium, Finland, France, and the …

Refusing Rehabilitation: Outlaw Epistemologies And The Carceral-Therapeutic State In Nyc, Nadja Eisenberg-Guyot

Dissertations, Theses, and Capstone Projects

During an historic re-articulation of incarceration in New York City, Refusing Rehabilitation: Outlaw Epistemologies and the Carceral-Therapeutic State explores how gender, race, and class have been transformed at the intersection of criminal legal system reform and the overdose crisis. I take up how multiracial groups of criminalized women—thrown together by the state, not by choice—refuse forms of state control and violence, and imagine together alternative “outlaw” horizons of justice, healing, drug use, and escape from carceral-therapeutic capture. Countering the individualizing mandate of rehabilitation, women in rehab articulate visions of healing grounded in interdependence, collective safety, and an end to structural …

"Cerulean Skies" By Maria Schneider: A Formal And Semiotic Analysis, Jonathan Heim

Dissertations, Theses, and Capstone Projects

Expressivity, imagery, and narrativity have long been touted as hallmarks of big band composer Maria Schneider’s style. This perception is widely accepted by critics and casual commentators, but are these attributions merely metaphorical or do they speak to observable dimensions of Schneider’s compositional style? This dissertation aims to address the narrative and expressive dimensions of Schneider’s music by combining aspects of formal analysis with concepts from music semiotics. The centerpiece is an analysis of “Cerulean Skies” (2006), the longest work to date in Schneider’s oeuvre with a duration of approximately twenty-two minutes. “Cerulean Skies” is distinct in its expansiveness and …

Humoring The Third Republic: Le Rire In French Politics And Popular Culture, 1894–1918, Andrew C. Kotick

Dissertations, Theses, and Capstone Projects

This dissertation studies the illustrated satirical periodical Le Rire in its historical context between its debut during the Dreyfus Affair and the conclusion of World War I. Adopting a multivalent approach to the historical study of graphic humor, it argues that Le Rire constitutes a significant corpus of evidence for understanding the political, commercial, social, and cultural novelties of its time, and maintained an ambivalent relationship with the young institutions and functionaries of the French Third Republic. As France’s leading satirical periodical, Le Rire served as a powerful medium for broadcasting nascent and extreme ideas to a mass reading public …

"Secession's Moving Foundation": Fugitive Slave Rendition And The Politics Of American Slavery, Evan Turiano

Dissertations, Theses, and Capstone Projects

This dissertation examines the political conflict over fugitive slave rendition from the era of the American Revolution through the passage of the 1850 Fugitive Slave Law. It pays particular attention to the struggle over the legal rights due to African Americans accused of being fugitive slaves. Slaveholders claimed an absolute property right over accused fugitive slaves and argued that any recognition of legal remedies for accused runaways threatened that right. Free African Americans and their allies in the abolitionist movement asserted that Black people accused of having escaped slavery were due a legal process. This was a vital protection against …

The Moral Economy Of Ordinary Belarussians And A Critical Examination And Re-Evaluation Of The 2020 Post-Electoral Uprising, Geoffrey Blank

Dissertations, Theses, and Capstone Projects

This study is three studies in one: First, a qualitative study of the moral economy of ordinary Belarussians based on E.P Thompson’s class-based economic conception of moral economy, as applied to complex socio-economic systems by Reinarman (1987). Second, a critical and broad examination and re-evaluation of the August 9, 2020 post-electoral uprising. And third, an examination of both the West’s hostility toward Belarus’ largely state-owned socially-oriented economic model (often considered market socialism) and toward President Lukashenka, and, of the West’s commitment to overthrowing President Lukashenka and Belarus’ largely state-owned socially-oriented economic model, through its sponsorship of color revolution, “democratization,” regime …

Neuroanatomy In Mild Cognitive Impairment: Relationship To Functional Skills, Treatment Expectancy, And Comorbid Depression, Sara Rushia

Dissertations, Theses, and Capstone Projects

Mild cognitive impairment (MCI) is a neurocognitive disorder defined by cognitive decline in older adults. Although MCI has been studied for decades, there remain important areas to be explored in order to adequately characterize aspects of this disorder that provide information valuable for possible interventions and disease progression to dementia, including a better understanding of the neuroanatomical variables relevant to this disorder. Such neuroanatomical variables include cortical thickness, hippocampal volume, and white matter hyperintensities (WMHs). This dissertation consists of three separate studies aimed at addressing gaps in the literature on MCI in relation to brain morphometrics and under-studied characteristics involved …

The Intersection Of Prose And Poetics In Apollonius’ Argonautica, Stephen B. Ogumah

Dissertations, Theses, and Capstone Projects

Detecting allusions in the Argonautica of Apollonius of Rhodes is not quite new except for the fact that it has been carried out for long mostly within the poetic tradition. Looking at the proem of the epic, where there is mixing of genres, this mixture suggests that scholars may need to look beyond the Homeric epics and the poetic tradition for better appreciation of the Alexandrian epic. This dissertation explores the relationship between certain features and episodes of Apollonius’ Argonautica and the prose tradition, and seeks to show that the prose tradition, particularly Herodotus’ Histories, is germane to the …

Efficacy, Acceptance, And Feasibility Of Virtual Reality For Chronic Pain Relief In Older Adult Veterans Residing In Long Term Care, Valicia Philibert

Dissertations, Theses, and Capstone Projects

Older adults residing in Long-Term Care (LTC) have a high prevalence of chronic pain. Pain management strategies have primarily focused on pharmacological approaches, but with physiological changes associated with aging, this population is at an increased risk for adverse effects from prescribed medications. More research is needed on innovative non-pharmacological interventions in the LTC setting. This study examined the feasibility, acceptance, and preliminary efficacy of Virtual Reality (VR) for chronic pain among older adult veterans in LTC. In this quasi-experimental, 12 older adult participants living with chronic pain in a long-term care facility received two sessions of VR. Pain intensity …

Generation Of Mycobacterium Smegmatis Model Systems For Testing Inhibitors Of The Mycobactin Siderophore Of Mycobacterium Tuberculosis, Gabrielle A. Germain

Dissertations, Theses, and Capstone Projects

Mycobacterium tuberculosis (Mtb) is the pathogenic bacterium causative of tuberculosis. According to the 2021 World Health Organization (WHO) Global Tuberculosis (TB) Report, there were approximately 5.8 million TB cases in 2020, and 1.3 million TB deaths among HIV negative people in that year. The rise of multi-drug resistant Mtb strains has increased the need for more potent microbials against this pathogen. Biosynthesis of iron scavenging molecules, known as siderophores (e.g., mycobactin and carboxymycobactin), has been identified as a potential drug target candidate since iron acquisition has been directly linked to the survival and virulence of Mtb. Salicyl-AMS (Sal-AMS) is …

Towards Explaining Variation In Entrainment, Andreas Weise

Dissertations, Theses, and Capstone Projects

Entrainment refers to the tendency of human speakers to adapt to their interlocutors to become more similar to them. This affects various dimensions and occurs in many contexts, allowing for rich applications in human-computer interaction. However, it is not exhibited by every speaker in every conversation but varies widely across features, speakers, and contexts, hindering broad application. This variation, whose guiding principles are poorly understood even after decades of entrainment research, is the subject of this thesis. We begin with a comprehensive literature review that serves as the foundation of our own work and provides a reference to guide future …

Engineering Rare-Earth Based Color Centers In Wide Bandgap Semiconductors For Quantum And Nanoscale Applications, Gabriel I. López-Morales

Dissertations, Theses, and Capstone Projects

For many years, atomic point-defects have been readily used to tune the bulk properties of solid-state crystalline materials, for instance, through the inclusion of elemental impurities (doping) during growth, or post-processing treatments such as ion bombardment or high-energy irradiation. Such atomic point-defects introduce local ‘incompatible’ chemical interactions with the periodic atomic arrangement that makes up the crystal, resulting for example in localized electronic states due to dangling bonds or excess of electrons. When present in sufficient concentrations, the defects interact collectively to alter the overall bulk properties of the host material. In the low concentration limit, however, point-defects can serve …

Macroeconomic Adjustments Of Global Convergence: Real Exchange Rate Response Of Asia-Pacific Growth, Kumarappan Annamalai

Dissertations, Theses, and Capstone Projects

This dissertation consists of three chapters.

Chapter 1 : PURCHASING POWER PARITY, REAL EXCHANGE RATE, PRICE LEVEL INDEX and HARROD-BALASSA-SAMUELSON EFFECT: LITERATURE SURVEY

In the light of the concepts explained in the introduction section, this chapter explores the seminal papers on the Purchasing Power Parity principle, the Real Exchange rate, and the Price Level Index, showing the evolution of PPP and the methodologies adopted in exploring the characteristics of PPP and the real exchange rates. Various characteristics might be stationarity or non-stationarity of the real exchange rates (RER), variance, correlation, half-life measures, linearity versus non-linearity, etc. Various methodologies adopted were …

Linguistic Abstractions In Children’S Very Early Utterances, Qihui Xu

Dissertations, Theses, and Capstone Projects

How early do children produce multiword utterances? Do children's early utterances reflect abstract syntactic knowledge or are they the result of data-driven learning? We examine this issue through corpus analysis, computational modeling, and adult simulation experiments. Chapter 1 investigates when children start producing multiword utterances; we use corpora to establish the development of multiword utterances and a probabilistic computational model to account for the quantitative change of early multiword utterances. We find that multiword utterances of different lengths appear early in acquisition and increase together, and the length growth pattern can be viewed as a probabilistic and dynamic process.

Chapter …

Facing The Fringe, Laura Gradowski

Dissertations, Theses, and Capstone Projects

Fringe theories are a broad set of alternative views that mainstream scientists deny. Case studies from the past two centuries demonstrate that fringe theorists have sometimes been marginalized to the detriment of scientific advancements. While it is accepted that once in a blue moon comes a diamond in the rough, there are far more cases of fringe theories becoming mainstream than has been traditionally acknowledged. Indeed, fringe theories become mainstream with such regularity that our epistemic intolerance towards them is in need of urgent reexamination. With the recognition that tolerance is an epistemic virtue, we can view debates about theory …

Cerebrovascular Impairment As A Potential Target For Neuromodulation Therapy In Moderate-Severe Traumatic Brain Injury, Naomi L. Gaggi

Dissertations, Theses, and Capstone Projects

The main purpose of this dissertation is to characterize noninvasive neuroimaging biomarkers of neurovascular injury in moderate-severe traumatic brain injury (msTBI) as potential treatment targets for neuromodulation therapy. In Chapter 1, I aim to introduce msTBI and two known sequelae of neurovascular damage in msTBI: reduced cerebral blood flow (Ware et al., 2020; Julliene et al., 2016) and altered low frequency fluctuations in blood oxygen level-dependent signal (Zhou et al., 2021; Palacios et al., 2013). Chapter 2 aims to identify the regional pattern of altered resting cerebral blood flow from a cohort of 29 patients with msTBI assessed at 3, …

Coded Matrix Multiplication, Xiaodi Fan

Dissertations, Theses, and Capstone Projects

Matrix multiplication is a fundamental building block in many machine learning models. As the input matrices may be too large to be multiplied on a single server, it is common to split input matrices into multiple sub-matrices and execute the multiplications on different servers. However, in a distributed infrastructure, it is common to observe stragglers whose performance is significantly lower than other servers at some time. Compared to replicating each task on multiple servers, coded matrix multiplication, i.e., a combination of coding theoretic techniques and distributed matrix multiplication, can tolerate the same number of stragglers with much fewer servers. The …

The Cognitive, Behavioral, Affective, And Physiological Components Of Social Cognition In Esports And Education, Daisy Reyes

Dissertations, Theses, and Capstone Projects

Prior research has shown that collaborative learning, or groups of two or more individuals working together towards a shared outcome, and Computer-Supported Collaborative learning has the potential to positively impact learning outcomes. This study aims to add to existing literature on collaborative learning by looking at how novices and experts learn and perform in esports (electronic sports) teams, or highly coordinated digital teams that often compete in stressful environments. Based on Carron’s Model of Cohesion in Sports Teams and Hanin’s Model of Individualized Zones of Optimal Functioning (IZOF), the current study looks at the relationship between cohesion (i.e., task and …

Mechanism Of Tau Propagation: Putative Therapeutic Approaches, Viktoriya Morozova

Dissertations, Theses, and Capstone Projects

One of the characteristics of Alzheimer’s disease and associated tauopathies is the accumulation and aggregation of hyperphosphorylated tau protein. The biological activity of tau is to bind to tubulin and promote its assembly into microtubules with subsequent stabilization of the latter. When tau gets hyperphosphorylated it cannot bind to tubulin and carry on its function, instead, it binds to normal tau and sequesters it from microtubules leading to disruption of microtubular assembly and ultimately to the death of neurons. Our lab had previously shown that tau phosphorylation sites 199, 212, 231, and 262, combined with the FTDP-17 mutation R406W (Pathological …

The Relative Cost Of Codeswitching: An Electrophysiological Study Contrasting Language Switching Versus Lexical Predictability, Iris Strangmann

Dissertations, Theses, and Capstone Projects

Neurophysiological sentence processing studies are inconsistent about the additional costs that language switching within sentences (i.e., codeswitching) may bring about (cf. Valdés Kroff et al., 2020; Yacovone et al., 2021). There is discussion about whether there are, in fact, additional costs and, if so, about the origins of those costs, since some findings are consistent with effortful processing when comprehending single-language (not switched) words observed in monolingual studies. Specifically, studies are divided on whether codeswitched words are more difficult to lexically access than single-language equivalents of similar semantic predictability, as indexed by an increased N400 effect. The same studies, however, …

“The Formation Of A Personality”: Shostakovich’S Fifth Symphony And The Politics Of Its Hermeneutic Reception, Ki Ki Leung

Dissertations, Theses, and Capstone Projects

This dissertation provides a new perspective on Shostakovich’s widely discussed Fifth Symphony by scrutinizing the formation of its Bildungsroman narrative and its transformation from a prototype of Soviet symphonism into an anti-Soviet statement. I begin by reaching back to 1930s Soviet Russia, when Soviet symphonism was formulated to comply with the official ideology of socialist realism. Building on Paul Bekker’s gemeinschaftsbildende Kraft (“community-building power”), key Soviet musicologists such as Ivan Sollertinsky advocated applying a model from the Western symphonic tradition to meet national propagandist needs. With music analysis, I show how Shostakovich’s Fifth fits into Boris Asafyev’s conception of Soviet …

Experiencing Sonic Change: Acoustic Properties As Form- And Meter-Bearing Elements In Popular Music Vocals, Kristi D. Hardman

Dissertations, Theses, and Capstone Projects

This dissertation analyzes sound qualities in popular music vocals and examines the relationship between sound qualities and other musical structures, including beat, meter, and form. I use the term sound qualities to refer to those aspects of a sound that help us distinguish one sound from another. In this dissertation, I focus specifically on loudness, noisiness, brightness, and vowel quality. Listeners often attend to the vocals while singing along to their favorite popular song. Additionally, the voice is extremely malleable, which means that sound qualities regularly fluctuate in the vocals. This makes popular music vocals a good case study for …

Serial Position Effect Profiles And Their Neuroanatomical Correlates: Predictors Of Conversion To Alzheimer's Disease, Isabelle K. Avildsen

Dissertations, Theses, and Capstone Projects

The current study was designed to determine whether targeted, premorbid, neuropsychological measures of the serial position effect (SPE) can detect and explain risk for later development of Alzheimer’s disease (AD). The study tested the utility of SPE measures in healthy controls (HC) and individuals already diagnosed with mild cognitive impairment (MCI) or AD. Aim 1 was to determine whether these sensitive, valid neuropsychological measures can explain disease risk. SPE of list-learning are highly sensitive cognitive markers that capture important elements of both linguistic and amnestic mechanisms of encoding, learning, and retrieval. Using the Rey Auditory Verbal Learning Test (RAVLT), we …