Showing 611 - 620 of 5831 Items
Date: 2022-01-01
Creator: Noah Gans
Access: Open access
- Urban Sociology is concerned with identifying the relationship between the built environment and the organization of residents. In recent years, computational methods have offered new techniques to measure segregation, including using road networks to measure marginalized communities' institutional and social isolation. This paper contributes to existing computational and urban inequality scholarship by exploring how the ease of mobility along city roads determines community barriers in Atlanta, GA. I use graph partitioning to separate Atlanta’s road network into isolated chunks of intersections and residential roads, which I call urban pastures. Urban pastures are social communities contained to residential road networks because movement outside of a pasture requires the need to use larger roads. Urban pastures fences citizens into homogenous communities. The urban pastures of atlanta have little (
The Bowdoin College Catalogue is the official publication that describes entrance and degree requirements, course offerings, scholarships, student awards and prizes, and sanctioned student organizations. The Catalogue, which also lists the names of faculty and College officers and, until the late 1960s, the names and residences of students, is an essential resource for researching the curricular history of the College and biographies of Bowdoin students and faculty. For those years when the Medical School of Maine was administered by Bowdoin College (1820-1921), the Bowdoin College Catalogue was typically published jointly with that of the medical school.
In the 2010-2011 academic year, the Catalogue became primarily an online publication available via the College website; a pared down print version was also produced in parallel with the online Catalogue. From 2015-2019, the Academic Handbook: Policies and Procedures and Course Guide were published in place of the Catalogue. Starting in 2019, the College Catalogue and Academic Handbook was published online. The current version is available on the College website.
- Restriction End Date: 2027-06-01
Date: 2022-01-01
Creator: Phuong Luong
Access: Access restricted to the Bowdoin Community
Date: 2022-01-01
Creator: Ella Marie Jaman
Access: Open access
- This paper examines selected stories from Filipino author, Nick Joaquin, through a gothic lens. Drawing from recent development in Gothic studies, I work within a tropical gothic and postcolonial gothic framework to suggest a localized "Philippine gothic" represented within Nick Joaquin's work. Stories examined include the novel "The Woman Who Had Two Navels," as well as the short stories "Summer Solstice, Mass of St. Sylvestre," and "The Order of Melkizedek."
- Restriction End Date: 2025-06-01
Date: 2022-01-01
Creator: Grace Soeun Lee
Access: Access restricted to the Bowdoin Community
- Embargo End Date: 2027-05-19
Date: 2022-01-01
Creator: Maia B. Granoski
Access: Embargoed
Date: 2022-01-01
Creator: Joanna Lin
Access: Open access
- The crustacean heartbeat is produced and modulated by the cardiac ganglion (CG), a central pattern generator. In the American lobster, Homarus americanus, the CG consists of 4 small premotor cells (SCs) that electrically and chemically synapse onto 5 large motor cells (LCs). Rhythmic driver potentials in the SCs generate bursting in the LCs, which elicit downstream cardiac muscle contractions that are essential for physiological functions. Endogenous neuromodulators mediate changes in the CG to meet homeostatic demands caused by environmental stressors. Nitric oxide (NO), a gaseous neuromodulator, inhibits the lobster CG. Heart contractions release NO, which directly decreases the CG burst frequency and indirectly decreases the heartbeat amplitude, to mediate negative feedback. I investigated NO’s inhibitory effects on the CG to further understand the mechanisms underlying intrinsic feedback. Using extracellular recordings, I examined NO modulation of the SCs and LCs when coupled in the intact circuit and when firing independently in the ligatured preparation. Using two-electrode voltage clamp, I additionally analyzed the modulation of channel kinetics. Based on previous studies, I hypothesized that NO decreases the burst frequency of the LCs and SCs by modulating conductance properties of the voltage-gated A-type potassium current (IA). My data showed that NO decreased the burst frequency in the LCs and the burst duration in the SCs in a state-dependent manner. Furthermore, NO increased the IA inactivation time constant to decrease the LCs’ burst frequency. Thus, NO mediated inhibitory effects on cardiac output by differentially targeting both cell types and altering the IA current kinetics.