Showing 261 - 270 of 564 Items

Robot Detection Using Gradient and Color Signatures

Date: 2016-05-01

Creator: Megan Marie Maher

Access: Open access

Tasks which are simple for a human can be some of the most challenging for a robot. Finding and classifying objects in an image is a complex computer vision problem that computer scientists are constantly working to solve. In the context of the RoboCup Standard Platform League (SPL) Competition, in which humanoid robots are programmed to autonomously play soccer, identifying other robots on the field is an example of this difficult computer vision problem. Without obstacle detection in RoboCup, the robotic soccer players are unable to smoothly move around the field and can be penalized for walking into another robot. This project aims to use gradient and color signatures to identify robots in an image as a novel approach to visual robot detection. The method, "Fastgrad", is presented and analyzed in the context of the Bowdoin College Northern Bites codebase and then compared to other common methods of robot detection in RoboCup SPL.


Miniature of Characterization of Bacterial Glycosylation Pathways with Fluorescent Monosaccharide Probes
Characterization of Bacterial Glycosylation Pathways with Fluorescent Monosaccharide Probes
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      Date: 2023-01-01

      Creator: Lucas John DiCerbo

      Access: Access restricted to the Bowdoin Community



        Vienna Secession

        Date: 2023-01-01

        Creator: Bobby Murray

        Access: Open access

        ‘Vienna Secession’ is a poetry manuscript broken into four distinct sections: “The Vienna Secession,” “Waltzes,” “Short Talks,” and “Other.” Most of the manuscript is in dialogue with Secessionist artists, or the ethos of the Vienna Secession. However, others, like the haikus, are exercises of form and responses to other contemporary poets, such as Robert Hass or Richard Wright. The manuscript explores different genres, including ekphrasis, prose, and experimental poems, like the ‘Waltzes,’ which employ 3/4 meter to emulate the Viennese waltz. The heart of the project is its sonic awareness—pulling from W.H. Auden, August Kleinzahler, and other musically-oriented poets. Outside the ‘Short Talks’ section, the poems’ sonic and phonetic qualities are integral to their style and meaning. At times this may be subtle, or even indiscernible, but overall, careful attention is paid to the sound and rhythm of the poems. The manuscript should be considered in both musical and literary terms. Rainer Maria Rilke’s ‘Duino Elegies’ and advice in ‘Letters to a Young Poet’ are instrumental in creating these poems. As a ‘first statement,’ many poems battle with the insecurities of a young poet and exemplify the grapple of an aspiring creative. The poems consider antiquated things through contemporary frameworks; relationships, communication, masculinity, and suffering, to name a few. A general incentive of the work is to provide fresh perspectives on historical art and to import its most apposite sentiments into our current moment.


        Miniature of Sorption of Cationic Heterocyclic Amines to Soils: Effects of Charge Delocalization and other Factors
        Sorption of Cationic Heterocyclic Amines to Soils: Effects of Charge Delocalization and other Factors
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            Date: 2023-01-01

            Creator: Mariah McKenzie

            Access: Access restricted to the Bowdoin Community



              Miniature of Characterisation of the <i>Gryllus bimaculatus</i> nervous system: insights into the role of the Spätzle1 and Spätzle5 proteins in the compensatory plasticity of the CNS
              Characterisation of the Gryllus bimaculatus nervous system: insights into the role of the Spätzle1 and Spätzle5 proteins in the compensatory plasticity of the CNS
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              • Restriction End Date: 2028-06-01

                Date: 2023-01-01

                Creator: Sarah Lührmann

                Access: Access restricted to the Bowdoin Community



                  Physiological responses of the American lobster cardiovascular system to neuropeptide SGRNFLRFamide (SGRN)

                  Date: 2024-01-01

                  Creator: Andre Eden

                  Access: Open access

                  During every second of a human’s life, the cardiovascular system is modulated by factors both intrinsic and extrinsic to the physiology of the heart. We can uncover new insights regarding the nature of our system through investigations of similar systems in other model species. One example materializes itself in the form of the American Lobster (Homarus americanus) whose single-chambered heart finds resemblance to the function and anatomy to that of humans. The lobster heart is powered by the cardiac ganglion (CG), a group of neurons that drive contractions of surrounding heart muscles, known as the myocardium. Both the CG and myocardium work in a feedback loop, with both intrinsic (afterload and preload) and extrinsic (temperature and neuropeptides) factors affecting cardiac output (CO) or the overall ability of the heart to carry out its primary function of nutrient distribution. In this paper, we examine how the addition of these factors into in vitro whole heart preparations affect CO and other associated variables. From experimentation, we conclude that the neuropeptide SGRNFLRFamide (SGRN) increases the heartbeat frequency and the active force exerted by the heart. We also conclude that increases in temperature decrease CO as higher temperatures decrease heartbeat frequency and the active force exerted by the heart. Lastly, we conclude that the effect of preload and afterload combined produce more robust effects on the CO and active force of the heart, potentially painting a better picture of what may happen in vivo.


                  Giving on the Margin: The Power of Donor Recognition

                  Date: 2016-05-01

                  Creator: Jordan W Richmond

                  Access: Open access

                  This study develops a controlled laboratory experiment to examine the effects of personal recognition on charitable giving. I find evidence that both the possibility of acquiring prestige and the desire to avoid shame motivate individuals to give in recognition situations. Furthermore, I show that the possibility of being recognized is more important than the distinguishing value of that recognition, suggesting that an offer of recognition has greater power to increase charitable contributions when a larger proportion of donors will be recognized.


                  Miniature of The <i>EOL</i> Enhancer Activates <i>Eya</i> Expression to Mediate Visual System Development in <i>Drosophila melanogaster</i>
                  The EOL Enhancer Activates Eya Expression to Mediate Visual System Development in Drosophila melanogaster
                  This record is embargoed.
                    • Embargo End Date: 2027-05-16

                    Date: 2024-01-01

                    Creator: Benjamin Sewell-Grossman

                    Access: Embargoed




                      Reframing Mourning: Liberatory Grief in Post-Tragedy Chinese American Women’s Fiction

                      Date: 2024-01-01

                      Creator: Sophia Li

                      Access: Open access

                      My project approaches discussions of Asian American melancholia and mourning with a specific focus on contemporary Chinese American women’s fiction. Scholars such as David Eng, Shinhee Han, and Anne Anlin Cheng have long spotlighted the prevalence of depression among Asian American populations, particularly those with immigrant backgrounds, and they variously adopt psychoanalytic approaches to understand Asian American mental health and intersectional identities. Looking beyond psychoanalytic models, my project focuses on the works of Yiyun Li, Jenny Zhang, and K-Ming Chang to explore diverse forms of post-tragedy positionality. I read the authors paratextually, not only to locate them within legacies of diasporic fiction and intersectional auto-writing but also to highlight their critically self-reflexive authorship. I study novels and characters depicting complex processes of mourning, ultimately proposing a reading that views them not only as resisting complete recovery but as forging pathways toward liberatory grief.