Honors Projects
Showing 291 - 298 of 298 Items
Nuevas posibilidades para la subjetividad feminista en la literatura del Cono Sur
Date: 2022-01-01
Creator: Kate Elizabeth Tapscott
Access: Open access
- ¿Cómo es que se puede escapar verdaderamente de la opresión patriarcal? Esta investigación aborda a través de un análisis de la literatura de escritoras del Cono Sur el asunto complicado de la liberación bajo un sistema en constante mutación. En el primer capítulo, a partir de aportes teóricos de Freud, Josefina Ludmer y Homi Bhabha entre otros, analizo cuentos de Jorge Luis Borges, Silvina Ocampo, y Clarice Lispector cuyas protagonistas intentan resistir su condición de víctima con diversos grados de éxito. En el capítulo que sigue, exploro una tendencia reciente en la literatura de escritoras del Cono Sur que incorpora elementos del horror y lo gótico para desestabilizar una cosmovisión humanista y patriarcal. Incorporando la teoría de Gabriel Giorgi, Rosi Braidotti, y Julieta Yelin, investigo los efectos que los animales, los cuerpos, y la materia tienen en la expansión de la agencia feminista y discuto si ofrecen o no nuevas e inesperadas posibilidades para resistir el sistema.
Building Home in Diaspora: New York’s Jewish Left and the History of the Bronx Housing Cooperatives
Date: 2022-01-01
Creator: Micah Benjamin Wilson
Access: Open access
- This thesis investigates three predominantly Jewish housing cooperatives that emerged in the Bronx in the late 1920s. The Amalgamated Housing Cooperative, the United Workers Cooperative Colony (the “Coops”), and the Sholem Aleichem Houses offered garment workers utopian retreats from the drudgery of Lower East Side tenements where Jewish immigrants arrived in droves between 1890-1920. With each cooperative housing a distinct faction of the Jewish Left––from socialists to communists to Yiddish nationalists––the Bronx housing cooperatives, more than experiments in communal living, were the site of a highly contested battle over competing Jewish cultural and political worldviews across the 1930s and 1940s. Transcending the era that is typically considered the movement’s “peak” in the 1910s, this thesis demonstrates that the era of the Bronx cooperatives must be central to any study of the Jewish labor movement by revealing the ways radical Jews attempted to maintain and negotiate their various worldviews against the backdrop of the threats posed by the capitalist housing market, assimilation, and sectarian struggles. I reconsider the disproportionate attention the “success story” of the Amalgamated Cooperative has received, situating its politics as but one of many responses to the contradictions embedded in the housing cooperative model. Finally, I analyze the role of nostalgia present across resident recollections of the cooperatives and situate it in the contexts of 1970s neoliberal urban reform and suburbanization, while considering the discursive power of this emotion to obscure the persistent legacy of anti-black racism entangled in the cooperative housing movement despite its progressive reputation.
Accretion onto endoparasitic black holes at the center of neutron stars
Date: 2021-01-01
Creator: Chloe B Richards
Access: Open access
- We revisit the system consisting of a neutron star that harbors a small, possibly primordial, black hole at its center, focusing on a nonspinning black hole embedded in a nonrotating neutron star. Extending earlier treatments, we provide an analytical treatment describing the rate of secular accretion of the neutron star matter onto the black hole, adopting the relativistic Bondi accretion formalism for stiff equations of state that we presented elsewhere. We use these accretion rates to sketch the evolution of the system analytically until the neutron star is completely consumed. We also perform numerical simulations in full general relativity for black holes with masses up to nine orders of magnitude smaller than the neutron star mass, including a simulation of the entire evolution through collapse for the largest black hole mass. We construct relativistic initial data for these simulations by generalizing the black hole puncture method to allow for the presence of matter, and evolve these data with a code that is optimally designed to resolve the vastly different length scales present in this problem. We compare our analytic and numerical results, and provide expressions for the lifetime of neutron stars harboring such endoparasitic black holes.
The Message, Medium and Messenger: A Study of Political Persuasion Through a Case Study of Planned Parenthood
Date: 2017-05-01
Creator: Jodi Leah Kraushar
Access: Open access
"What's it like to be a lesbian with a cane?": A Story and Study of Queer and Disabled Identities
Date: 2018-05-01
Creator: M.M. Daisy Wislar
Access: Open access
- People with disabilities are largely conceptualized as asexual; this systematically excludes disabled people from achieving agency in their sexual landscape. Drawing from interview data on the sexual lives of nine queer people living with disabilities, this project explores the lived experiences of physically disabled queer people as they relate to sexuality, sexual identity, intimacy, and the sexual body. Queer people with physical disabilities navigate identity, community, various sexual fields while also challenging misconceptions about these marginal identities. Excerpts and analysis of these interviews reveal the various strategies that queer and disabled people utilize in order to make their identities legible in the face of numerous assumptions about their experiences. Illuminating the voices of queer and disabled people, this thesis offers an important intervention to the sociological study of sexualities, gender expression, and disability, which too frequently marginalizes the voices of people who are queer and disabled.
Receptors and Neuropeptides in the Cardiac Ganglion of the American Lobster, Homarus americanus: A Bioinformatics and Mass Spectrometric Investigation
Date: 2019-01-01
Creator: Louis Mendez
Access: Open access
- Central pattern generators (CPGs) are neural networks that generate rhythmic motor patterns to allow organisms to perform stereotypical tasks, such as breathing, scratching, flying, and walking. The American lobster, Homarus americanus, is a simple model system whose CPGs are functionally analogous to those in vertebrate models and model complex rhythmic behaviors. CPGs in many Crustacea, including the American lobster, have been studied because of their ability to maintain biological function after isolation in physiologically relevant conditions. The cardiac ganglion (CG) is a CPG consisting of five larger motor neurons and four smaller pacemaker neurons that innervate the cardiac neuromuscular system and generate electrical bursts that drive patterned behaviors. Neuromodulators, such as neuropeptides, are known to modulate neural output in the CPGs of the American lobster. Currently, neuromodulators affecting the cardiac ganglia are thought to be mainly expressed and secreted outside of the cardiac ganglia, acting as extrinsic neuromodulators. However, there is current evidence to support the idea that neuromodulators can be intrinsically expressed within the cardiac ganglion of the American lobster. Preliminary studies using transcriptomic techniques on genomic and transcriptomic information indicate that neuropeptides are likely expressed within the cardiac ganglion. However, little research has been done to determine whether these neuropeptides are expressed in the cardiac ganglion of the American lobster. Therefore, the purpose of this study is to combine bioinformatics and mass spectrometric techniques to determine whether select neuropeptides are present in the cardiac ganglion within the cardiac neuromuscular system of the American lobster, Homarus americanus. Our data mining techniques using protein query sequences obtained from previously annotated brain and eyestalk transcriptomes resulted in the identification of 22 putative neuropeptides preprohormones from 17 neuropeptide families and 20 putative neuropeptide receptors from 17 neuropeptide receptor families in the CG transcriptome. Additionally, 9 putative neuropeptide receptors from 7 neuropeptide receptor families were detected in the cardiac muscle transcriptome. Of the 17 neuropeptide families detected, receptors for 9 of these neuropeptide families were detected in the CG transcriptome. Receptors for 6 of the neuropeptide families were also present in the cardiac muscle transcriptome. Interestingly, receptors for 6 of neuropeptide families detected were not found in either the CG or cardiac muscle transcriptomes, and receptors for 4 neuropeptide families that weren’t detected in the CG transcriptome were found in the cardiac muscle transcriptome. Therefore, our research suggests that neuropeptides are able to modulate CPG activity extrinsically, either though hormonal or local delivery, or intrinsically. Additionally, neuropeptides were extracted from the stomatogastric ganglion and the commissural ganglion using a scaled-down neuropeptide extraction protocol to estimate the number of tissues required to obtain sufficiently strong mass spectrometry signals. Pooled samples with two commissural ganglia and single samples of a commissural ganglion and a stomatogastric ganglion displayed little signal and an increase in larger peptides and impurities relative to single-tissue samples. Therefore, further optimization of the scaled-down neuropeptide extraction protocol must be done prior to analysis of a cardiac ganglion in the American lobster.
Interaction of stretch feedback and beat regularity in response to AMGSEFLamide in the heart of Homarus americanus
Date: 2020-01-01
Creator: William Allen
Access: Open access
- Central pattern generators (CPGs) are neural circuits whose component neurons possess intrinsic properties and synaptic connections that allow them to generate rhythmic motor outputs in the absence of descending inputs. The cardiac ganglion (CG) is a nine-cell CPG located in the American lobster, Homarus americanus. Stretch of the myocardium feeds back to the CG through mechano-sensitive dendrites and is thought to play a role in maintaining regularity in the beating pattern of the heart. The novel peptide AMGSEFLamide has been observed to induce irregular beating patterns when applied at high concentrations. This study investigated the interaction between stretch-related feedback and AMGSEFLamide modulation in generating irregular beating patterns in the whole heart of Homarus americanus. It was hypothesized that greater longitudinal stretch of the heart would result in greater regularity in the instantaneous beat frequency, based on previous findings that stretch-sensitive dendrites play a role in the regulation of the heartbeat. Furthermore, it was predicted that the elimination of stretch feedback via deafferentation of the heart would augment the irregularity induced by AMGSEFLamide. Data showed significantly increased irregularity in beating in response to 10-6 M AMGSEFLamide application. Longitudinal stretch did not reliably alter baseline variability in frequency, nor did it influence the modulatory effect of AMGSEFLamide. Deafferentation did not significantly alter baseline irregularity. Deafferented preparations did exhibit a trend of responding to AMGSEFLamide with a greater percent increase in irregularity compared to when afferents were intact, suggesting a potential role of stretch-stabilization in response to modulatory perturbations in the Homarus heart.
Demography of a Collapsing Aerial Insectivore Population
Date: 2017-05-01
Creator: Liam Taylor
Access: Open access
- Aerial insectivores have been declining across northeastern North America since the end of the 20th century. The mechanisms and demographic patterns of this decline are unclear. On Kent Island, New Brunswick, Canada, an isolated population of Tree Swallows (Tachycineta bicolor) collapsed between 1987 and 2010. To explore how demographic rates (i.e., survival, reproduction, and immigration) drove the population dynamics of these northeastern aerial insectivores, we combined productivity, population survey, and capture-recapture data in an integrated population model analysis. Neither consistently low juvenile survival rates, adult survival rates, nor clutch size were correlated with population growth rate across years. Alternatively, male and female immigration, hatching success, and fledging success rates were correlated with population growth rate. Because local hatching and fledging success rates cannot influence a population without local recruitment, we argue that the demography of these Tree Swallows is mainly structured by immigration. Parameter-substitution simulations revealed that overall decline was likely even if the population had avoided the worst years of demographic collapse. Breeding Bird Survey comparisons demonstrated how the Kent Island population represents both a demographic and geographical extreme at the edge of a declining region. These demographic patterns highlight the sensitivity, even to the point of local extinction, of some isolated populations to region-scale patterns in the production of potential immigrants.