Honors Projects
Showing 551 - 600 of 662 Items
Crazy American
Date: 2022-01-01
Creator: Emma Quan Dewey
Access: Open access
- Crazy American is an evening-length dance solo choreographed and performed by Bowdoin's first Dance honors student, Emma Quan Dewey. This dance is an embodied exploration of her mother's family migration history from South China to the Philippines to the US, and how it places her and her family within structures of US imperialism, racial hierarchies, and Chineseness itself. Based on ethnographic, historical, theoretical, and embodied research, Crazy American examines the intimate ways these structures play out at the level of the body, and seeks to imagine new possibilities for moving through systems and stories of power.
Modeling Oyster Growth Dynamics in FLUPSY Systems to Develop a Decision Support Tool for Seed Management
Date: 2023-01-01
Creator: Gretchen Clauss
Access: Open access
- As the Gulf of Maine warms and lobsters move north to colder waters, Maine’s working water front has begun to diversify. There is a thriving new ecosystem of aquaculturists looking to keep Maine’s waterfront traditions alive in a lasting, sustainable way. One of the most popular aquaculture industries is oyster farming. With an increasing number of oyster farms developing in Midcoast Maine each year, we seek to develop a decision support tool to aid farmers in seed management. Oyster farmers can choose weather or not to use an upweller on their farm, and our goal is to provide guidance on this choice, as well as on upweller management. We begin by culminating and synthesizing data from previous literature and oyster farmers. We then use this data to first build a basic analytical model of a cohort of oysters based on an exponential growth model. We expand this model to include biological differences among oysters as well as management practices. Finally, we walk through a case study, illustrating how our tool could be used to make seed management decisions on an individual farm scale.
Exploring Solution-Based Co-Crystal Growth of Curcumin as an Approach for Alzheimer’s Therapeutics Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Nadia E. Puente
Access: Access restricted to the Bowdoin Community
Dynamic Multi-Objective Optimization With Applications to AI for Social Good Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Sajel Surati
Access: Access restricted to the Bowdoin Community
Settling down to a long winter's nap: Seasonality and temperature on evergreen entrance into winter dormancy Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Roger M. Wilder
Access: Access restricted to the Bowdoin Community
Using Fluorogenic Monosaccharides to Detect and Identify Glycan-Degrading Enzymes Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Esteban Tarazona Guzman
Access: Access restricted to the Bowdoin Community
The Collision of Oil and Anticolonial Nationalism in the Persian Gulf
Date: 2025-01-01
Creator: Vaughn Vial
Access: Open access
- In the 1950s and 1960s, Arab nationalism swept across the Arabian Peninsula from Egypt and the Levant, carried by migrants, refugees, and in magazines and newspapers that circulated across national borders. In the Gulf countries this wave of Arab nationalism collided with a flow more material in nature: the movement of enormous amounts of carbon energy in the form of oil. In Arab nationalism, oil workers at Aramco in Saudi Arabia and Bapco in Bahrain found not only a direction for political change but a means of overcoming religious and national divides with their fellow workers. Strikes and labor actions soon ensued at a scale that was unprecedented in these countries. This project explores how the confluence of oil flows and anticolonial nationalism both imbued this moment with the potential to effect egalitarian political change and, simultaneously, limited that potential.
The Sublethal Impacts of Epizootic Shell Disease, Molting and Damage on Energy Storage and Immune Function in the American Lobster (Homarus americanus) Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Annika Ruth Bell
Access: Access restricted to the Bowdoin Community
Latent Landscapes: Deep Learning Techniques for Measuring Poverty and Vulnerability Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Brian Liu
Access: Access restricted to the Bowdoin Community
New Creatures in Old Gazes: Investigating Shifts Away from Anthropocentrism in Contemporary Animal Fiction
Date: 2025-01-01
Creator: Catherine Mose
Access: Open access
- This paper examines three works of animal-based fiction published within the last decade that all center on hypothetical forms of animals with a focus on decentering anthropocentric narratives of how much agency an animal is allowed to have in a human-centric narrative without engaging in anthropmorphism. By comparing the books with theory from the academic field of animal studies, older works of animal-based fiction, and historical debates surrounding the depiction of real-world animals in writing, I aim to interrogate the methods these authors use to decouple their animals' agency from anthropomorphism, and the ways in which this shift allows anthropocentrism to take new forms rather than be eradicated.
Exploring the functional role of theta oscillations in top-down control of episodic memory retrieval Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Emma F.B. Gibbens
Access: Access restricted to the Bowdoin Community
Suite For a Changing Climate
Date: 2025-01-01
Creator: Hayden Byrne
Access: Open access
- Suite for a Changing Climate is a set of compositions inspired by the changing rhythms of the New England seasons and the evolving ways in which we experience them in the shadow of climate change. Each piece captures a distinct facet of the seasonal year, whether rooted in sensory experience or in cultural memory, while reflecting on how these once-familiar patterns are being reshaped by environmental instability.
“I belong as much as I want to”: Changing Perceptions of Belonging through COVID and After among Elite Undergraduates Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Fiona Bor
Access: Access restricted to the Bowdoin Community
Exploring Eelgrass Restoration: Understanding Zostera marina seed development and germination in Casco Bay, ME Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2025-01-01
Creator: Lucille Jean de Ferranti Dutton
Access: Access restricted to the Bowdoin Community
Que vivan los estudiantes: Cycles of Contention and the Chilean Student Movement (1906-present)
Date: 2018-01-01
Creator: Jonah Watt
Access: Open access
- [No abstract]
The Role of Competition and Patient Travel in Hospital Profits: Why Health Insurers Should Subsidize Patient Travel
Date: 2013-05-01
Creator: Joseph S Durgin
Access: Open access
- This paper explores the effects of patient travel distance on hospital profit margins, with consideration to the effects of travel subsidies on hospital pricing. We develop a model in which hospital agglomeration leads to a negative relationship between profit margins and patient travel distance, challenging the standard IO theory that profit margins are higher for firms with greater distances of customer travel. Using data on patient visits and hospital finances from the California Office of Statewide Health Planning and Development (OSHPD), we test our theory and confirm that a hospital tends to have less pricing power if it draws patients from beyond its local cluster. We then consider how our results might justify the subsidizing of patient travel by insurers and government payers. Lastly, we present an argument for why the ubiquitous Hirschman-Herfindahl index of market concentration can be robust to owner and system-level hospital cooperation.
Superhero Ecologies: An Environmental Reading of Contemporary Superhero Cinema
Date: 2019-05-01
Creator: Andrew McGowan
Access: Open access
Identifying a distinct developmental module in the zebrafish dentition
Date: 2018-01-01
Creator: Caleb Matthew Gordon
Access: Open access
- In the zebrafish pharynx, the first three teeth to form, 3V1, 4V1, and 5V1, have distinct adult and embryonic morphologies, suggesting that these teeth may form using different developmental pathways. Previous studies of gene expression profiles and mutant phenotypes in 3V1, 4V1, and 5V1 have identified four genes that might be involved in dissociating these tooth modules: pitx2b, eve1, pbx1a, and pbx1b. To determine how the developmental roles of these four genes differ across 3V1, 4V1, and 5V1, and obtain a better understanding of how these three teeth develop, I performed CRISPR/Cas9– mediated knockouts in each of these genes, or analyzed embryos from a stable transgenic mutant line where available, and observed the resulting tooth germs and mineralized tooth structures via fluorescence and confocal microscopy. Preliminary results implicate pitx2 as being required for tooth mineralization, offer a possible role for pbx1a, pbx1b, and eve1 in distinguishing the developmental pathway of 3V1, and suggest that 3V1 constitutes a distinct developmental module within the early ventral dentition.
“I’m Going to Help You Become a Better You”: Teacher-Student Dynamics in Special Education
Date: 2019-05-01
Creator: Sophie Sadovnikoff
Access: Open access
- This study explores teachers’ roles in special education in terms of how they interact with students with disabilities. In the struggle against oppression and disempowerment, teachers can play a crucial role in employing education as the great equalizer, or else not. The question this research seeks to answer is: how do special education teachers interact with their students with disabilities, and how does this teacher role fit within a society that seeks to marginalize these students? I argue that special education teachers reproduce ableism by disciplining, normalizing, and controlling their students, but teachers express a deep sense of caring for and about their students, and understand their work as being their best effort at helping their students. The ableist actions that they perform are, ironically, an effort to help their students create fulfilling lives within an ableist society.
Ecotourism Reconsidered: Chinese and Western Participation in the Thai Elephant Industry
Date: 2019-05-01
Creator: Miao (Jasmine) Long
Access: Open access
A "Peculiarly American" Enthusiasm: George Bellows, Traditional Masculinity, and The Big Dory
Date: 2014-01-01
Creator: James W. Denison, IV
Access: Open access
- A “Peculiarly American” Enthusiasm: George Bellows, Traditional Masculinity, and The Big Dory investigates the portrayal of masculinity in the oeuvre of the much-lauded yet enigmatic American painter George Bellows (1882-1925). Rather than relying on Bellows’ urban works for source material, a significant portion of this investigation is conducted via a case study of Bellows’ 1913 panel The Big Dory, a scene of fishermen pushing a boat into the North Atlantic off Monhegan Island, Maine that the artist painted during a sojourn on the island in the months after his involvement in the landmark Armory Show in New York. The paper situates The Big Dory within the greater context of the history of the depiction of Maine through the lens of the heroic fisherman. Bellows achieved a heroic effect by forcing the viewer to focus on the labor of the fishermen via their positioning in the near middleground and by echoing the hues and forms of the men elsewhere in the painting, giving the work a sense of visual unity. I argue that these strategies highlight Bellows’ interest in tradition rather than modernism. Armed with this knowledge, Bellows’ other works come more sharply into focus. I reveal that the traditional heterosexual mode of white male identity Bellows represented in The Big Dory was not simply echoed in Bellows’ personal comportment, but in fact pervaded his oeuvre; such masculinity was a reaction by patriarchal American society against the perceived growth of other influences in the early twentieth century. The portrayal of such masculinity is then established as the key underlying feature of the sense of “Americanism” which has traditionally dominated reception of Bellows’ art.
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.
"This is N.Y.C. Not Little Rock": The Battle to Integrate New York City's Public Schools
Date: 2019-01-01
Creator: Anne Fraser Gregory
Access: Open access
- The landmark Brown vs. Board of Education decision of 1954, and its subsequent implementation, offer an essential question: Are segregated schools inherently evil, and is integration the only solution to unequal education? The statistics that illustrate the effects of segregated schooling are indeed staggering. According to a 2016 Government Accountability Office study, the number of schools segregated along racial and economic lines doubled between 2000 and 2013. In New York City, the achievement gap between Black and white students has continued to grow. In 2018, the National Assessment of Achievement Progress reported that 48 percent of white fourth-graders were proficient in math, while only 16 percent of black students met the standard. With a gap of 32 percentage points—growing 5 points since 2015—Black children in New York are consistently behind their white peers in academics. Sixty years ago, New York's Black and Latino parents parents grappled with this same issue as they fought to desegregate the city’s schools. This Honors Project will discuss segregated schooling in New York City during the 1950s and 60s, and the actors who fought to disrupt the system. Throughout this work, I will attempt to illustrate the power of community in New York City, for both good and evil, for equality and bigotry. Parents—Black, white, and Puerto Rican—function as key players in this story, as they continually fought local and state Boards to access the education they believed to be rightfully theirs and their children’s. I will also assert the notion that segregation was not solely a Southern issue: the similarities between the fight for school integration in both North and South are striking, and highlight the far reaches of prejudice in the nation both then and now. Most importantly, I argue that unequal education may not be solved by integration alone, and that believing in integration as the only viable option perpetuates the incorrect notion that children of color require proximity to white students in order to be academically successful.
The Future Regained: Toward a Modernist Ethics of Time
Date: 2020-01-01
Creator: Jack Rodgers
Access: Open access
- This project explores the convergence of futurity and ethics through an examination of key figures in modernist literature. It studies works by Virginia Woolf, Marcel Proust, and James Joyce in order to conceptualize an encounter with the future which goes beyond a traditionally linear and teleological model of time, setting out to reimagine the role of both temporality and ethics in novels including Orlando, Mrs. Dalloway, In Search of Lost Time, and Ulysses. Key facets of this exploration, which is metaphorized and guided by the image of a window, include temporal otherness, transgression and fracturing of the self (primarily understood through the paradoxical experience of dying), and the arrival of the future into the present. Major theoretical influences include queer theory, poststructuralism, and anti-dialectics. Ultimately, the project makes the case that it is possible to construct a modernist ethics which embraces the messianic potential of absences, blanks, and blind spots, a proposition made possible by our encounter with an incomprehensible yet imminent fragment of the future out of place in the present. At the close, it suggests an ethical imperative towards “affirmative negation”—a messianic, annunciatory, affirmation of that which is missing or omitted.
Differential gene expression during compensatory plasticity in the prothoracic ganglion of the cricket, Gryllus bimaculatus Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2020-01-01
Creator: Felicia F. Wang
Access: Access restricted to the Bowdoin Community
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.
Regulation of eyes absent gene expression in Drosophila melanogaster by Polycomb Group Response Elements Access to this record is restricted to members of the Bowdoin community. Log in here to view.
- Restriction End Date: 2025-06-01
Date: 2020-01-01
Creator: Boris S. Dimitrov
Access: Access restricted to the Bowdoin Community
Mémoire et souvenir dans l'imaginaire antillais - Maryse Condé et Fabienne Kanor: Identité et existence noire aux Antilles et en France
Date: 2020-01-01
Creator: Elijah B Koblan-Huberson
Access: Open access
- L’histoire d’un peuple est en grande partie liée à sa mémoire, aux souvenirs et commémorations des évènements passés et des ancêtres.En raison de la colonisation et ses conséquences, les habitants des îles de la Guadeloupe et de la Martinique vivent un malaise vis-à-vis de la mémoire en tant que peuple antillais.Par conséquent, il est important de se demander comment, après la déshumanisation effectuée par l’extermination des premiers habitants, les Caraïbes et les Arawaks, l’esclavagisation des Africains, et la colonisation des territoires antillais, une nouvelle conceptualisation de la mémoire peut mener à une nouvelle conceptualisation de l’existence et de l’identité pour l’être humain antillais qui provient de ceux qui ont été esclavagisés. Pour répondre à la question nous examinerons les romans de Maryse Condé et de Fabienne Kanor.
Enemy Combatants and Unitary Executives: Presidential Power in Theory and Practice During the War on Terror
Date: 2020-01-01
Creator: Rohini Kurup
Access: Open access
- In the wake of the September 11 attacks, the Bush administration decided that suspected terrorists and those determined to have aided terrorists would be detained and classified as “enemy combatants.” This was a largely new category of prisoners who were neither prisoners of war protected under international law nor civilians. They included noncitizens and citizens—those captured on foreign battlefields and on American soil. They would be detained by the United States, held indefinitely without charge or access to a lawyer, and subject to trial by military commission. The administration’s enemy combatant policies were based on a theory of inherent executive power—that the Constitution gave the president vast and exclusive powers, which allowed him to act unilaterally without Congressional interference or judicial review. This thesis charts the development of and challenges to the enemy combatant policies to understand how they were conceived and what their implications are to the American political system. I argue that by appealing to a theory of inherent executive power to create the policies, the administration subverted traditional checks on presidential power and undermined the rule of law. Ultimately, the dismantling of some of the enemy combatant policies, largely a result of court rulings that challenged the administration’s premise of power, signified a reining in of executive authority. Yet, many aspects of the administration’s counterterrorism apparatus remained past Bush’s years in the White House, leaving a legacy of expanded presidential power for future presidents.
Isolation of Cell Adhesion Mutations in Arabidopsis thaliana Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2020-01-01
Creator: Frances DeCamp Hobart Zorensky
Access: Access restricted to the Bowdoin Community
The role of behavioral diversity in determining the extent to which central pattern generators are modulated
Date: 2020-01-01
Creator: Jacob Salman Kazmi
Access: Open access
- Neuromodulation may be a substrate for the evolution of behavioral diversity. The extent to which a central pattern generator is modulated could serve as a mechanism that enables variability in motor output dependent on an organism’s need for behavioral flexibility. The pyloric circuit, a central pattern generator in the crustacean stomatogastric nervous system (STNS), stimulates contractions of foregut muscles in digestion. Since neuromodulation enables variation in the movements of pyloric muscles, more diverse feeding patterns should be correlated with a higher degree of STNS neuromodulation. Previous data have shown that Cancer borealis, an opportunistic feeder, is sensitive to a wider array of neuromodulators than Pugettia producta, a specialist feeder. The observed difference in modulatory capacity may be coincidental since these species are separated by phylogeny. We predict that the difference in modulatory capacity is a product of a differential need for variety in foregut muscle movements. This study examined two members of the same superfamily as P. producta, the opportunistically feeding snow crab (Chionoecetes opilio) and portly spider crab (Libinia emarginata). Using extracellular recording methods, the responses of isolated STNS preparations to various neuromodulators were measured. Initial qualitative results indicate that the STNS of C. opilio is sensitive to all of these neuromodulators. Additionally, previous data on the neuromodulatory capacity of L. emarginata was supported through similar electrophysiological analysis of the isolated STNS. As a first step in determining the mechanism of differential sensitivity between species, tissue-specific transcriptomes were generated and mined for neuromodulators.
Metabolic inhibitors reshape Helicobacter pylori glycosylation Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2020-01-01
Creator: Owen Templeton Tuck
Access: Access restricted to the Bowdoin Community
Hermeneutic Encounters: Hans-Georg Gadamer in North America, 1968-1986
Date: 2020-01-01
Creator: Ian Ward
Access: Open access
- Hans-Georg Gadamer’s myriad contributions to the continental philosophical tradition have been well documented, but his influence on North American intellectual life has gone largely gone unrecognized. This paper attempts to fill that gap, using primary and secondary source material to document Gadamer’s scholarly activities in the United States and Canada between 1968 and 1986. The paper also evaluates Gadamer’s influence using detailed accounts of “hermeneutic encounters” that occurred between Gadamer and four notable North American philosophers: Richard Palmer, Paul de Man, Charles Taylor, and Richard Rorty. Through these accounts, this paper argues that Gadamer made lasting contributions to ongoing debates in the humanities about the nature of literary interpretation, the social sciences, and analytic philosophy. Finally, the paper explores the philosophical and historiological possibilities that Gadamer’s hermeneutics opens up for intellectual history more broadly, especially in the field of reception history. Building on Gadamer’s own hermeneutics and Hans-Robert Jauss’s reception aesthetics, it develops the concept of the “encounter” as the starting point of a more hermeneutically-sensitive approach to intellectual history.
Living Upstream: Kennebec River Influence on Nutrient Regimes and Phytoplankton Communities in Harpswell Sound
Date: 2020-01-01
Creator: Siena Brook Ballance
Access: Open access
- Phytoplankton underpin marine trophic systems and biogeochemical cycles. Estuarine and coastal phytoplankton account for 40-50% of global ocean primary productivity and carbon flux making it critical to identify sources of variability. This project focuses on the Kennebec River and Harpswell Sound, a downstream, but hydrologically connected coastal estuary, as a case study of temperate river influence on estuarine nutrient regimes and phytoplankton communities. Phytoplankton pigments and nutrients were analyzed from water samples collected monthly at 8 main-stem rivers stations (2011-2013) and weekly in Harpswell Sound (2008-2017) during ice-free months. Spatial bedrock and land use impacts on river nutrients were investigated at sub-watershed scales using GIS. Spatial analysis reveals a 10-fold increase in measured phytoplankton biomass across the Kennebec River’s saltwater boundary, which demonstrates ocean-driven phytoplankton variability in the lower river. The biomass pattern is accompanied by a transition in phytoplankton community structure with respect to which groups co-occur (diatoms, chlorophytes, and cryptophytes) and which are unique (dinoflagellates in Harpswell). Upstream, the timing of each community depends on land-use proximity and seasonal discharge. In Harpswell Sound, the nutrient regime and phytoplankton community structure vary systematically: first diatoms strip silicate, then dinoflagellates utilize nitrate, followed by chlorophytes and cryptophytes that utilize available phosphate. These findings reveal, for the first time, patterns in phytoplankton communities and nutrient dynamics across the fresh to salt water interface. Ultimately the Kennebec River phytoplankton communities and nutrient regimes are distinct, and the river is only a source of silicate to Harpswell Sound.
Ideal Point Models with Social Interactions Applied to Spheres of Legislation Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2020-01-01
Creator: Luca Ostertag-Hill
Access: Access restricted to the Bowdoin Community
The Colombo-Venezuelan Border Through the Lens of the Colombian Press
Date: 2020-01-01
Creator: Diego Rafael Grossmann
Access: Open access
- The Colombo-Venezuelan Border Through the Lens of the Colombian Press examines the dominant Colombian press coverage of crises of sovereignty at the Colombo-Venezuelan border, Venezuelan migration, and the February 2019 attempt to introduce humanitarian aid into Venezuela, as seen in El Espectador and El Tiempo’s coverage from the period of August 2018-November 2019. Through theories of nations and power, this thesis reveals the divergent editorial lines and dominant narratives within each newspaper’s construction of the relation between the Colombian and Venezuelan nations, states, and their people. The study details how both newspapers construct different “truths” through divergent constructions of similar events in a manner coherent with the ideological affinities and conceptions of Colombian national identity held by their respective audiences and editorial leadership, constrained further by economic factors. The thesis is split into three main chapters. Chapter 1 addresses the construction of Colombian nationhood rooted in militarism and the presentation of the Colombian state as a protector in El Tiempo’s coverage concerning binational tensions at the border. Chapter 2 traces the coverage regarding Venezuelan migration to Colombia within El Espectador, detailing the conception of national identity rooted in liberal-democratic values that the newspaper constructs and appeals to. Chapter 3 considers both newspaper’s coverage of the attempt to introduce humanitarian aid into Venezuela in 2019. Ultimately, this thesis argues that the discursive actor––and construction––of Venezuela permits the “imagining” of the Colombian nation, a project framed through a discussion of the Colombian conflict and official commitments to multiculturalism by the Colombian state.
Daily, seasonal, and yearly timescales of seawater carbonate chemistry variability in Harpswell Sound and the Gulf of Maine Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2021-01-01
Creator: Eugen Florin Cotei
Access: Access restricted to the Bowdoin Community
Metabolic glycan inhibitors interfere with glycoprotein biosynthesis in the human pathogen Ralstonia pickettii Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2021-01-01
Creator: Melissa G. Demczak
Access: Access restricted to the Bowdoin Community
Evaluation of the Effectiveness of Probe Compounds at Predicting Anionic Pharmaceutical Sorption to Soils Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2021-01-01
Creator: Ben Cook
Access: Access restricted to the Bowdoin Community
Albert Camus: An Ethical Politics in the Absurd World Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2015-05-01
Creator: Stephanie Lane
Access: Access restricted to the Bowdoin Community
Regional Identity, Devolution and Ethnic Outbidding: The Rise and Radicalization of Ethnoregionalist Parties in Spain Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2021-01-01
Creator: Alex Baselga Garriga
Access: Access restricted to the Bowdoin Community
Localizing Resistance: How Southern Women Locate Sexual and Bodily Autonomy and Strategically Resist the Institutions Aiming to Shape Them
Date: 2021-01-01
Creator: Gillian Raley
Access: Open access
- This paper analyzes the methods of resistance enacted by women-identifying people in Mississippi against the institutions seeking to police how they understand their own sexuality and bodily autonomy. This analysis draws upon a series of in-depth, semi-structured interviews conducted in the summer of 2020 focused on construction of community, intersectional identity, relationship with the body, and what inputs frame how women in Mississippi understand sex. This project puts these interviews in conversation with literature from a variety of subfields, including resistance studies, the Sociology of the South, and the Sociology of sexuality, all of which help bring the argument behind these data to light. Resistance looks different in different eras, and generally scholars like to analyze resistance as collective action, collective voice, collective struggle. These data instead argue that strategic, individualized resistance is just as vital to marginalized bodies, particularly when explosive action is not possible. Studying strategies of resistance that lurk beneath the surface not only expands what we now see as “radical,” but it also lends insight into where lasting change can begin.
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.
Silent Nation: a memoir of sorts This record is embargoed.
- Embargo End Date: 2026-05-20
Date: 2021-01-01
Creator: Mishal Kazmi
Access: Embargoed
Cosmological gravitational waves: Refining a general rule of thumb for reheating
Date: 2021-01-01
Creator: David Zhou
Access: Open access
- There are predictions for cosmological gravitational wave backgrounds from reheating based on various models. But, these predictions do not address the question of how an observed spectrum relates back to an unknown model or parameter. Given this problem, we have numerically and analytically investigated a variety of chaotic inflation models and their gravitational wave spectra. In doing so, we found a power law relation between gravitational wave peak frequency and an underlying chaotic inflation parameter. We found a two-class amplitude puzzle related to how strongly a matter producing field is coupled to the inflaton. We estimated the parameter describing how quadrupolar the gravitational wave source's energy density to good agreement with previous estimates.
Agent-Based Modeling of Asset Markets: A Study of Risks, Preferences, and Shocks This record is embargoed.
- Embargo End Date: 2026-05-18
Date: 2023-01-01
Creator: Evan Albers
Access: Embargoed
Service Beyond Bars: How Correctional Chaplains Mediate the Movement of Religion in Prisons and Jails This record is embargoed.
- Embargo End Date: 2028-05-18
Date: 2023-01-01
Creator: Lia F. Kornmehl
Access: Embargoed
"Proud Flesh and Blood": Phineas Fletcher, Gabriel Daniel, and Seventeenth-Century Theories of Embodiment
Date: 2022-01-01
Creator: Micaela Elanor Simeone
Access: Open access
- The human body was a site of discovery and redefinition in early modern Europe. This project traces the gradual arc from the mid-seventeenth century towards Cartesian notions of the body in the later part of the century through two fictions: Phineas Fletcher (1582-1650)’s The Purple Island (1633) and Gabriel Daniel (1649-1728)’s Voyage du Monde de Descartes (1690). This project views these two largely-overlooked texts as important literary works that represent the seventeenth century’s transformative debates about and explorations of the human body. I argue that Fletcher employs a dissective mode that embraces mind-body harmony while framing the human as both fragmented and whole. I then explore how Voyage du Monde de Descartes responds to an altogether different culture in the late seventeenth century, after Cartesian ideas extracted mind from body and no longer saw the body as a significant marker of humanity. I argue that Voyage ultimately reveals—through a captivating satirical fiction—how understanding Cartesian anatomy as the product of anxiety, uncertainty, and novelty helps us better see how we became motivated to transcend our bodies.
Searle’s Mind: Brains, Subjects, and Systems
Date: 2023-01-01
Creator: Saul Cuevas-Landeros
Access: Open access
- Throughout this project, I ‘step into the Chinese Room’ presented by philosopher John R. Searle and develop the areas where the Chinese Room Argument succeeds. I have aimed to pick out where Searle has succeeded with the Chinese Room Argument and introduce how it fits in with his school of biological naturalism, as it seems that he already had some conception of it when presenting the Argument. From here, I introduce some of the primary arguments against the Chinese Room Argument because they do not fit with Searle’s overarching theme of biological naturalism. Particularly, Searle’s conception of systems and system features is something he endorses for the biological but immediately labels as silly for the Chinese Room. Following the exposition of systems and system features, I expand on how there is a disconnect between Searle’s use of system features and his view of the Chinese Room Argument. What is so special about Searle’s conception of systems and the systems present in the Chinese Room Argument? Searle should claim that the Chinese Room is simply not the kind of thing that can think. Ultimately, Searle’s philosophy of mind leaves us with either a muddled philosophy or an invalid argument in the Chinese Room, but with much to learn and not forget to consider in the philosophy of mind, such as the important role of subjectivity in our conscious life.
Impacts of eelgrass (Zostera marina) on pore-water sulfide concentrations in intertidal sediments of Casco Bay, Maine
Date: 2016-05-01
Creator: Sabine Y Berzins
Access: Open access
- Eelgrass (Zostera marina) is a perennial seagrass that provides many vital ecosystem services including stabilizing sediments, maintaining water clarity, and providing complex habitat in the intertidal and shallow subtidal coastline. Historically, Maine supported dense eelgrass beds in shallow waters surrounding islands and along the coastal mainland. However, in 2012, high population densities of European green crabs (Carcinus maenas), which physically disturb and remove eelgrass as they forage, were correlated with widespread eelgrass declines. Over 55% of the area of eelgrass in Casco Bay was lost, mainly between 2012 and 2014. Eelgrass typically grows in low-oxygen sediments that produce a chemically reducing environment. Sulfate-reducing bacteria in these reduced sediments produce hydrogen sulfide, a toxin that can intrude into eelgrass tissues and impair the plants’ ability to photosynthesize. When eelgrass is not present, sulfide can build up in the pore-water. When eelgrass is present, it can oxygenate the sediments through its roots, thereby preventing the intrusion and buildup of toxic hydrogen sulfide. However, if the substrate is de-vegetated, oxygen levels drop as sedimentary organic matter is decomposed, and the accumulation of sulfides to harmful concentrations in the pore-water may make recolonization of eelgrass difficult or perhaps impossible even in the absence of green crabs. In an effort to monitor characteristics of Casco Bay eelgrass beds and determine spatially where eelgrass may be more likely to recover, four Casco Bay sites with varying degrees of vegetation loss were sampled in 2015 for pore-water sulfide concentration, sediment carbon and nitrogen content, and sediment grain size analysis. Measurements of sulfide concentrations showed correlations with the timing of eelgrass loss, such that vegetated sites had low pore-water sulfide concentrations and sites that had been de-vegetated for longer periods of time had high sulfide concentrations. Carbon and nitrogen content in the sediment was higher at de-vegetated sites, likely due to a higher percentage of finer sediments at those locations. Coarser sediments were more highly vegetated than finer sediments, perhaps displaying a preference of green crabs to forage in finer sediments. Catastrophic loss of eelgrass in Casco Bay has likely led to differences in sulfide levels, carbon and nitrogen content in the sediment, and grain size distribution, depending on degree of vegetation. Eelgrass restoration in Casco Bay will likely be limited by high pore-water sulfide concentrations.