Digital Commons Network^™

Sweating The Small Stuff: Exploring Consequence Assignments And Academic Outcomes In A No-Excuses Charter Network, John G. Stevens

Theses and Dissertations

Schools utilize a range of consequences to maintain order and safety. Some employ zero-tolerance policies accompanied by exclusionary tactics like suspension (Martinez, 2009; Muschert et al., 2014). Suspensions are criticized for their disproportionate assignment to students who are Black, male, assigned an IEP, and receiving lunch assistance (Cholewa et al., 2018; Skiba et al., 2002), as well as their deleterious associations with academic achievement (Chu & Ready, 2018; Morris & Perry, 2014; Noltemeyer et al., 2015). Charter schools espousing a no-excuses philosophy often adopt a “Sweat-the-Small-Stuff” (STSS) approach focused on correcting minor (mis)behaviors to prevent more egregious ones (Whitman, 2008). …

Love In The Time Of Dating Apps: Exploring Latino Young Adults’ Experiences Constructing Online Identity, Partner Preferences, And Plans For Happily Ever After, Dakota Z. Ross-Cabrera

Dissertations, Theses, and Capstone Projects

This dissertation examines how Latino young adults navigate dating apps; construct their dating app profiles, select partners and develop preferences, and conceptualize their futures. While earlier dating app research explores these themes with quantitative data or with non-Latino samples, the qualitative experiences of Latino young adults have been broadly excluded. Latinos are a large portion of the dating app market, and their relationships, outcomes, and future family formation are integral to understand. Drawing on 60 qualitative interviews with Latino young adult dating app users, I find that app users encounter five stages of dating app usage including constructing and often …

Imaging Markers Of Future Neurodegeneration Following Moderate-Severe Traumatic Brain Injury, Daniel Brennan

Dissertations, Theses, and Capstone Projects

The overall goal of this dissertation was to identify patterns of cerebral atrophy following traumatic brain injury and relate relevant imaging measures to that atrophy. In Chapter 2, we outline a spatiotemporal profile of atrophy in the first year following moderate-severe TBI: prior to 3-months post injury, the frontal and temporal cortices were observed to be thinner than controls, and thalamic volumes were reduced. From 3-12 months post-injury, significant atrophy was observed in white matter, subcortical gray matter structures (including thalamus), and cortical thinning was observed in the parietal and occipital cortices.

In Chapter 3, we identified widespread white matter …

Investigating The Impact Of Affect In Suicide-Specific Attentional Biases, Beverlin Rosario-Williams

Dissertations, Theses, and Capstone Projects

Objective: Biased processing of suicide-related information has been implicated in risk of future suicidal thoughts and behaviors. Although previous studies have classified this biased processing, the tasks used to examine these biases cannot definitely specify which attentional processes are related to risk for suicidal thoughts and behaviors. Therefore, via two independent studies, this dissertation sought to distinguish suicide-specific attentional engagement and disengagement biases from other forms of cognitive processing, such as accessibility of suicide-related stimuli and threat bias toward and away from socially threatening stimuli. Additionally, this dissertation investigated under which affective conditions suicide-specific engagement and disengagement biases emerged. …

Féminas Speaking Up: Three Papers On Feminine Transgender Identities, Gender Identity Activism, And Language Reform In Lima, Peru, Ernesto Cuba

Dissertations, Theses, and Capstone Projects

In this three-paper dissertation, I explore the linguistic and discursive practices of Féminas, a leading transgender rights activist organization based in Lima, Peru. Building on scholarship on language ideologies (Irvine & Gal, 2000), queer linguistics (Motschenbacher, 2011), and socio-onomastics (Ainiala & Östman, 2017), I analyze the role that language beliefs and language-in-use plays in performing local (trans)gender identities and shaping grassroots politics within this specific community of practice (Eckert & McConnell-Ginet, 1992). Based on an extensive corpus of semi-structured interviews and ethnographic material gathered during my long-term investigation with Féminas, I present three studies exploring distinct –though related– ideologically-driven sociolinguistic …

Careful Compositions And Careless Constructions, Timothy Dalton

Dissertations, Theses, and Capstone Projects

This dissertation uses digital methods to analyze a digitized archive of life writing by disabled Civil War veterans through lenses of care ethics and rhetorical genre theory. Autobiographical letters by more than 370 disabled men respond to a contest prompt open to Union veterans injured in their right arms who had to relearn penmanship. This dissertation introduces the hybrid genre of “specimens of left-hand penmanship” through several critical lenses. It critiques the rhetoric of vocational rehabilitation and examines this archive as a site for early examples of concepts from contemporary disability studies. Finally, it turns explicitly to care ethics, and …

Autophagy And Meiotic Fidelity In C. Elegans, Kaitlin E. Kosinski

Dissertations, Theses, and Capstone Projects

Autophagy is an evolutionarily conserved multi-step recycling process in which cellular material is enclosed in the double membrane-bound autophagosome, which fuses with the lysosome to degrade its contents. Autophagy is essential for development and cellular adaptation to environmental or intracellular stress and is an important regulator of germline stem cell homeostasis in the model nematode C. elegans. We sought to determine if autophagy is important for genome stability during meiosis and found that the core adult C. elegans autophagy genes bec-1, atg-7, unc-51, and atg-18 were all required for proper meiotic development of oocytes. Loss of these …

Claiming The Right To Belong: Diversity And The Politics Of Inclusion In Queens, New York, Susan J. Tanenbaum

Dissertations, Theses, and Capstone Projects

This dissertation examines social integration in a diverse civic and political mainstream. The social science research on intergroup contact in U.S. cities undergoing significant demographic change tends to focus on encounters between members of majority “in-groups” and minority “out-groups” in the context of workplaces, neighborhoods, and families. I contend that civic politics is another compelling strategic site for observing intergroup contact between emerging and established players. My study presents three cases of claims-making activity during the post-9/11 period in New York City’s borough of Queens, where close to 50% of the population is foreign-born and no single racial group predominates. …

Intuitionism, Justification Logic, And Doxastic Reasoning, Vincent A. Peluce

Dissertations, Theses, and Capstone Projects

In this Dissertation, we examine a handful of related themes in the philosophy of logic and mathematics. We take as a starting point the deeply philosophical, and—as we argue, deeply Kantian—views of L.E.J. Brouwer, the founder of intuitionism. We examine his famous first act of intuitionism. Therein, he put forth both a critical and a constructive idea. This critical idea involved digging a philosophical rift between what he thought of himself as doing and what he thought of his contemporaries, specifically Hilbert, as doing. He sought to completely separate mathematics from mathematical language, and thereby logic. In chapter 3, we …

The Blackgirl Project: Examining The Impact And Manifestation Of Colorism Among Black Adolescent Girls In The United States: A Critical Participatory Action Research Approach, Gina (Diagou) R. Sissoko

Dissertations, Theses, and Capstone Projects

Colorism is a skin tone stratification system that privileges lighter-skinned people over their darker-skinned counterparts. Although colorism remains surprisingly understudied, it has been linked to a variety of negative mental health and social outcomes. Colorism particularly impacts Black girls—particularly in adolescence. This dissertation utilized microaggressions theory and a critical participatory action research framework to describe (1) the manifestation of colorism in the lives of darker-skinned Black girls, (2) the impact of colorism on Black girls’ mental health, (3) the ways in which Black girls cope with and resist colorist experiences, and (4) create a taxonomy of colorist microaggressions. Ten Black …

Building Networks, Producing Spaces For Play: Local Geographies And National Organizing In The History Of Adventure Playgrounds In The United States, 1949-1999, Reilly B. Wilson

Dissertations, Theses, and Capstone Projects

This dissertation provides an historical analysis of repurposed material adventure playgrounds in the United States between 1949 and 1999. Three microhistories of adventure playgrounds (The Yard, in Minneapolis, M.N., and several playgrounds in New York City, N.Y., and Houston, T.X.) are framed against the wider socio-economic changes that shaped more than thirty-five adventure playgrounds in the United States over the period of study. By focusing on the relationships mobilized by adventure playground advocates at different scales and across different points of view, and how these networks shaped the local production of spaces for play, this dissertation's method underlines the importance …

Late-Life Depression: The Interplay Between Cerebrovascular Risk, Cortical And Subcortical Atrophy, And Treatment Response, Dakota Egglefield

Dissertations, Theses, and Capstone Projects

Late-life depression (LLD) is associated with poor response to antidepressant medication treatment, cognitive impairment, cerebrovascular disease, and brain changes both in white and gray matter. Of particular interest is the vascular subtype of LLD, vascular depression (VD). Although LLD and VD have received considerable research attention, there are still areas that must be further clarified to adequately characterize aspects of LLD and VD that provide valuable information for possible interventions. Such areas include a stronger understanding of the moderating role of brain atrophy and changes in cognition in treatment response in LLD. This dissertation consists of three separate studies aimed …

Perceptual Expectation, Rebecca Keller

Dissertations, Theses, and Capstone Projects

You are currently seeing many things, and, hopefully, you are currently about to see many other things. Many of the things that you are about to see will not be surprising, because you expect to see them. Sometimes, though, when you expect to see one thing and are faced with another, that thing will look like the thing you expected it to be, and not like the thing it actually is. This dissertation is an attempt to get a handle on what is happening in the visual system in these instances. In particular, I am trying to figure out what …

Challenging Beliefs: Examining The Efficacy Of Corrections For Conspiratorial And Partisan Misinformation, Ava Zwolinski

Dissertations, Theses, and Capstone Projects

The threat of misinformation is widely acknowledged among researchers and laypeople (NORC, 2021). When misinformation coalesces with conspiracy theories, the repercussions can be especially dangerous, sometimes even fatal. Events such as the January 6th insurrection and the Buffalo Tops Supermarket shooting were both, in part, inspired by misleading information and conspiracy theories (Burke, 2022; Dawsey, 2023). While misinformation involving conspiracy theories is recognized as possibly posing a greater threat to correction efforts (Lewandowsky, 2021a), no study has yet experimentally manipulated the presence or absence of conspiratorial elements within misinformation. This dissertation explores whether conspiratorial misinformation is more difficult to correct …

Design, Fabrication, And Spectroscopy Of Photocatalytic Materials In Visible Spectrum, Yamuna Paudel

Dissertations, Theses, and Capstone Projects

Heterogeneous photocatalysis has attracted research interest in sustainable energy technologies. However, achieving high photocatalytic efficiency from visible light-absorbing semiconductors is challenging due to their weak absorption, transport losses, and low activity. While multilayer approaches have been developed to enhance the surface reactivity and stability independent of electronic factors, a comprehensive framework for optimizing light-matter interactions has not yet been established. Here, we introduce a photonic strategy using semiconductor metasurfaces, which is highly effective in enhancing the photocatalytic activity of GaAs, a high-performance semiconductor with a near-infrared bandgap. Our engineered pillar arrays with heights of ~150 nm exhibit Mie resonances near …

Preschoolers’ Generation Of Quantity Implicatures, André Eliatamby

Dissertations, Theses, and Capstone Projects

This dissertation uses the developing child as a window into the mechanisms and representations that allow us to understand the meaning of utterances in their contexts. I present three studies investigating 4- and 5-year-olds’ ability to generate two types of “quantity implicatures,” classic scalar implicatures with some that imply not all, and free choice inferences that arise with sentences like “Larry is allowed to have cake or ice-cream.” Together, the studies suggest a close relationship between pragmatic development and word learning, something not appreciated in existing literature. In the first study investigating some, I show that preschoolers interpret …

Moving Pictures Of The Past: Nostalgia For Classical Hollywood In The Broadway Musical, 1960–1990, Curtis Russell

Dissertations, Theses, and Capstone Projects

In this dissertation, I examine how Broadway staged classical Hollywood between 1960 and 1990 amid social, artistic, and industrial upheaval. While upheaval and experimentation are constants even during epochs of apparent stability, the story my dissertation tells is of an industry facing the perils of obsolescence by looking backward and westward to understand how its larger and more powerful culture industry sibling navigated similar moments of disruption. Building on Fredric Jameson’s notion of the “nostalgia film,” I contend that between 1960 and 1990 the nine “nostalgia musicals” under consideration served the same function for the Broadway musical that the nostalgia …

Measuring Intersectional Strength And Stigma Among Racially Minoritized Gender Diverse Young Adults, Joseph Carter

Dissertations, Theses, and Capstone Projects

Background: Racially minoritized transgender and gender expansive young adults (RMTGEYA; aged 18-26) experience mental health inequities due to intersectional, multilevel stigma. RMTGEYA communities embody intersectional strength and resilience that can mitigate the impact of stigma. Understanding and capturing strength and stigma factors to address these inequities has significant implications for clinical science research and practice. There is, however, a complete absence of instruments that are validated to do so. Objective: The goal of this study is to conduct a three-phase, mixed methods study that centers intersectional and community engaged methods of psychometric development for a measure that captures daily experiences …

Repurposing Bt-11 To Treat Alzheimer’S Disease: Exploring The Glutathione-S-Transferase Lancl2 As A Target, Emily Birnbaum

Dissertations, Theses, and Capstone Projects

Approximately 99.6% of potential Alzheimer’s drugs fail, thus developing successful drugs is a high priority. The failure at developing successful drugs relates to the complex nature of the disease itself. Many components act together to trigger a cascade that ultimately results in neurodegeneration and cognitive dysfunction associated with the disease. In building a multiplex model of Alzheimer’s it is important to understand its specific biological mechanisms. One of these key pathological mechanisms is neuroinflammation. Understanding the pathways involved in neuroinflammation in Alzheimer’s is an urgent need, as it poses a promising avenue for future effective therapeutics. Specifically, as many investigational …

The Film, The Stadium And The Jail: The Post-Industrial Transformation Of Downtown Durham, Seth Rose

Dissertations, Theses, and Capstone Projects

By the late 1980s, Durham, North Carolina’s downtown-based industrial economy had been replaced by a powerful knowledge economy in the city’s peripheries. Downtown Durham’s vast array of tobacco and textiles manufacturing buildings stood empty, along with most of its commercial spaces, offices and sidewalks. This thesis argues that the local development of two major public works, a baseball stadium (the Durham Bulls Athletic Park) and a jail (the Durham County Detention Center), conceived and constructed on similar timelines in close physical proximity, was indicative of how—and for whom—city and county officials envisioned a revitalized downtown. The first chapter examines the …

The Effects Of Environmental Changes On The Biodiversity And Macroecological Patterns Of Bird Assemblages In The United States, Marlen Acosta Alamo

Dissertations, Theses, and Capstone Projects

The current restructuring of species assemblages and global loss of biodiversity result from species-specific responses to anthropogenic changes in climate and land cover. I investigated the effect of these two drivers on the seasonal distribution and biodiversity of birds in the United States and how human-induced habitat loss impacts macroecological patterns such as the species-area and the abundance-occupancy relationships. In Chapter 1, I examined the existence of a correlation between breeding and wintering geographic distributions of birds with different migratory strategies and the effect of changes in climate and the proportion of crop-pasture and urban land cover on this correlation. …

A Machine Learning Approach To Discovering Physical Models Of Galaxy Formation, Festa Bucinca

Dissertations, Theses, and Capstone Projects

Galaxies are the breathtakingly beautiful starry islands of the Universe. The process of galaxy formation involves the transformation from simple initial conditions in the early Universe to the complex galaxy structures we observe today. Spanning an immense spatial range and tremendous time scales - from the vastness of the Universe to the scale of individual stars - the physics of galaxy formation is both complex and crucial for understanding the Universe we live in. However, despite significant advancements, our theoretical understanding of galaxy formation remains incomplete.

In the era of big data available from hydrodynamical simulations and observations, Machine Learning …

Variability In Associations Among Seabirds And Marine Mammals: Causes And Consequences, Samantha A. Monier

Dissertations, Theses, and Capstone Projects

Marine predators today face multifaceted stressors from changing climate to changing prey availability, and these changes are occurring at unprecedented speeds. Any alteration to a species’ environment has the potential to disrupt social networks and thus, how animals obtain and transfer information. Interspecific social interactions in the form of local enhancement and facilitation are a critical, but not yet well-understood, component of seabird foraging; of immediate concern is that anthropogenic changes may be altering the quantity and quality of positive species interactions, with consequences for the species involved.

While we know these interactions are not immutable, less is known about …

Active Galactic Nuclei - The Arrhythmic Beat Of A Galactic Heart, Henry James Best V

Dissertations, Theses, and Capstone Projects

Active Galactic Nuclei (AGN) are generally believed to be supermassive black holes (SMBHs) at the center of galaxies which are actively accreting material from the host galaxy. Through this process, they emit radiation across the electromagnetic spectrum both as a smooth continuum and emission lines. However, there is a great variety of the signals we observe–some faint, some bright, some variable and others steady. The wide array of signals produced by AGN is believed to encode both the geometry and the physics surrounding these SMBHs, making them a valuable target for understanding the high gravity limit, their feedback mechanisms to …

The Beautiful And The Bullshit: Speaker And Listener Mental Representations Influence Bullshit Receptivity, Ryan Tracy

Dissertations, Theses, and Capstone Projects

Bullshit is a topic that has enjoyed an explosion of attention in both cognitive and social psychological research domains. While the picture painted thus far suggests that receptivity to such statements (i.e., perceiving meaning where none exists) hinges upon an individual’s ability to engage in reflective (vs. reflexive) cognitive processing, little attention has been paid to how purveyors of bullshit influence one’s willingness to engage with the message. This is critical to explore, given the status of misinformation in today’s media climate. A critical step involved in determining characteristics of speakers that predict bullshit receptivity is to understand how people …

Cognitive Flexibility And Stability In Bilingual Older Adults, Lia Pazuelo

Dissertations, Theses, and Capstone Projects

Lifelong bilingual individuals develop expertise in language-switching, requiring a delicate balance between cognitive stability—safeguarding goals from interference—and cognitive flexibility—adapting goals to changing demands. While some studies demonstrate the transferability of these skills to non-linguistic tasks, signifying bilingualism's impact on cognitive processes, others find no direct correlation between non-linguistic task-switching and bilingualism. Our study investigated the cognitive processes underlying bilingual speakers' performance on a switching task, exploring whether varying degrees of bilingual experience in older adults result in different tendencies towards stability (e.g., lower mixing cost and response congruency effect) or flexibility (e.g., smaller switching costs). By treating the bilingual experience …

Living Color: Aesthetic Surfaces And Political Life In Brazil, Samuel E. Novacich

Dissertations, Theses, and Capstone Projects

This dissertation is about the manipulation of appearances – of both the human body and the built environment – in Rio de Janeiro, Brazil. Focused on Afro-aesthetic makeup and tanning practices as well as urban renewal projects, this ethnographic study reveals how the making over of both the skin and the urban landscape shape social inequalities and contribute to productions of race, gender, and national belonging. While some of the aesthetic technologies examined herein may be characterized as “bottom up” – or as the self-fashioning tactics of marginalized Afro-Brazilians – others constitute “top down” infrastructural interventions led by the state …

Competitive And Noncompetitive Credit Assignment To Reward Cues In The Lateral Orbitofrontal Cortex, Mihwa Kang

Dissertations, Theses, and Capstone Projects

This dissertation investigates the mechanisms underlying variations in credit assignment to reward cues, with a focus on the lateral orbitofrontal cortex (lOFC). The lOFC has long been implicated in signaling reward expectancies, with controversy as to whether it signals the economic value of future outcomes, their sensory features to guide behavior or both. However, whether the lOFC signals the relative (competition-dependent) or absolute (contiguity-dependent) credit of cues is unknown. To address this, I employed a combination of novel behavioral assays, in-vivo electrophysiological recordings and optogenetic stimulation in rats. In Chapter 2, I tested the suitability of a self-initiating variant of …

“Hattak Vpi Homma” Mvt Miha Nanta Fehna? What Does “Native American” Really Mean?, Alex R. Steers-Mccrum

Dissertations, Theses, and Capstone Projects

Indigenous identities in North America are much more complex than generally assumed. No single definition of “Native (American),” “(American) Indian,” or related terms provides a set of necessary and sufficient conditions that accurately or usefully describe all and only the right individuals and communities. I argue that understanding Native identities in the contemporary context requires examining multiple interconnected dimensions of Nativeness, articulated here as Enrollment and Recognition, Tribal Ethnicities, Native Race, Indian Panethnicity, and Indigenous Nationhood.

In the U.S., Indigenous identities are usually oversimplified as either Enrollment in a Recognized Tribe or as Native Race. While both of these aspects …

Interplay Of Magnetic Impurities And Superconductivity In Topological Materials, Didier Ndengeyintwali

Dissertations, Theses, and Capstone Projects

The interplay of superconductivity and magnetism has been a long-standing topic of interest since the discovery of superconductivity. In recent years it has been shown that topological superconductivity, which has promising applications such as in topological quantum computing, could result from such interplay. Motivated by the later results I study the effect of magnetic impurities in superconducting doped topological insulators, such as Iron based topological superconductors. I show that topological character of parent materials could lead to modifications in the structure of magnetic impurity induced in-gap states. Moreover, the superconductivity induced interaction between magnetic impurities in doped topological insulator would …