Showing 481 - 490 of 583 Items

Miniature of Characterizing variation in enhancer usage within and between natural populations of <i>Drosophila</i> by comparing chromatin conformation in non-coding DNA
Characterizing variation in enhancer usage within and between natural populations of Drosophila by comparing chromatin conformation in non-coding DNA
This record is embargoed.
    • Embargo End Date: 2027-05-19

    Date: 2022-01-01

    Creator: Serena Jonas

    Access: Embargoed



      Miniature of Songs for Birds: An Exploration of Climate Change and the Changing Soundscape
      Songs for Birds: An Exploration of Climate Change and the Changing Soundscape
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          Date: 2023-01-01

          Creator: Logan Paige Gillis

          Access: Access restricted to the Bowdoin Community




            Modulation of the stretch feedback pathway in the cardiac neuromuscular system of the American lobster, Homarus americanus

            Date: 2024-01-01

            Creator: Karin van Hassel

            Access: Open access

            The cardiac ganglion (CG) is a central pattern generator, a neural network that, when activated, produces patterned motor outputs such as breathing and walking. The CG induces the heart contractions of the American lobster, Homarus americanus, making the lobster heart neurogenic. In the American lobster, the CG is made up of nine neurons: four premotor pacemaker neurons that send signals to five motor neurons, causing bursts of action potentials from the motor neurons. These bursts cause cardiac muscle contractions that vary in strength based on the burst duration, frequency, and pattern. The activity of the CG is modulated by feedback pathways and neuromodulators, allowing for flexibility in the CG’s motor output and appropriate responses to changes in the animal’s environment. Two feedback pathways modulate the CG motor output, the excitatory cardiac muscle stretch and inhibitory nitric oxide feedback pathways. Despite our knowledge of the modulation of the CG by feedback pathways and neuromodulators separately, little is known about how neuromodulators influence the sensory feedback response to cardiac muscle stretch. I found one neuromodulator to modulate each phase of the stretch response differently, one neuromodulator to generally not affect the stretch response, and three neuromodulators to suppress the stretch response. These results suggest neuromodulators can act to produce flexibility in a CPG’s motor output, allowing the system to respond appropriately to changes in an organism’s environment, and allow for variation in CPG responses to different stimuli.


            Blockholders and Their Effect on Project Value: An Empirical Approach of Understanding Ownership Concentration and Firm Value Using an Event Study Framework

            Date: 2017-05-01

            Creator: Xuanming Guo

            Access: Open access

            This study uses an event study framework to find the relationship between ownership concentration and project value. I find that project value first increases with ownership concentration when block size, the percentage ownership of the largest blockholder, is smaller than 10%, then declines with ownership concentration when block size gets larger, and finally rises again when block size exceeds 30%. However, my research only suggests an ambiguous relationship between ownership concentration and firm value. Additionally, ownership concentration seems to affect both the timing of market responses and the market’s interpretation of large investment projects.


            Miniature of A Neighbor’s Impact: The Influence of Emotional Valence on Visual Word Processing
            A Neighbor’s Impact: The Influence of Emotional Valence on Visual Word Processing
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                Date: 2014-05-01

                Creator: Marissa C Rosenthal

                Access: Access restricted to the Bowdoin Community



                  Miniature of Literary <i>Stolpersteine</i> that Produce Memory, Identity, and Belonging in Contemporary German Narratives of Migration
                  Literary Stolpersteine that Produce Memory, Identity, and Belonging in Contemporary German Narratives of Migration
                  This record is embargoed.
                    • Embargo End Date: 2026-12-16

                    Date: 2022-01-01

                    Creator: Lauren Katz

                    Access: Embargoed



                      Sexual Knowledge in Late-Colonial Bombay: Contested Authority, Politicized Sciences

                      Date: 2022-01-01

                      Creator: Rahul Prabhu

                      Access: Open access

                      Sexuality was at the fulcrum of various issues facing late-colonial India from social reform projects such as child marriage, women’s rights and birth control to concerns of socioeconomic, physical and sexual weakening. The question of sexual modernity became implicated in imaginations of the modern post-colonial nation, setting the stage for a period of energized, linguistically plural projects of sexual knowledge production. While science was used to authorize such projects in the West, where could authority be located in a context where science held plural meaning and authority itself was highly contested? This paper asks how scientific authority was understood, deployed and shaped by the eugenics project of Narayan Sitaram Phadke (1894-1978) and the sexology project of A.P. Pillay (1890-1956). This thesis argues that the mechanics of each figures’ utilization of science captures how the interaction between scientific authority and society was understood by Phadke and Pillay in different ways. While both figures subscribed to the idea that science was universally authoritative in the making of sexual modernity, Phadke’s and Pillay’s projects show the plurality in how science was understood by social reformers. Furthermore, the thesis presents the differences between Phadke’s and Pillay’s projects as a product of the larger movements – British-era birth control advocacy, Hindu nationalism, upper-caste marriage reform and global sexology – that Phadke and Pillay were distinctly invested in or separated from. Scientific authority and the mechanics of its use is proposed as a vivid lens into the complex dynamics of modernization in late-colonial India.


                      Miniature of Application of the Landau-Zener Model and Fermi's Golden Rule to Estimate Triplet Quantum Yield for Organic Molecules
                      Application of the Landau-Zener Model and Fermi's Golden Rule to Estimate Triplet Quantum Yield for Organic Molecules
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                          Date: 2014-05-01

                          Creator: Nathan D Ricke

                          Access: Access restricted to the Bowdoin Community



                            Miniature of Calculating the Local Biotic Exchange Ratio of O<sub>2</sub> and CO<sub>2</sub> at Harvard Forest: Using Flux Measurements to Improve Past Estimates
                            Calculating the Local Biotic Exchange Ratio of O2 and CO2 at Harvard Forest: Using Flux Measurements to Improve Past Estimates
                            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: Diana Katalina Grandas

                              Access: Access restricted to the Bowdoin Community