Showing 1731 - 1740 of 5709 Items
Higgs-regularized three-loop four-gluon amplitude in N = 4 SYM: Exponentiation and Regge limits
Date: 2010-01-01
Creator: Johannes M. Henn, Stephen G. Naculich, Howard J. Schnitzer, Marcus Spradlin
Access: Open access
- We compute the three-loop contribution to the N = 4 supersymmetric Yang- Mills planar four-gluon amplitude using the recently-proposed Higgs IR regulator of Alday, Henn, Plefka, and Schuster. In particular, we test the proposed exponential ansatz for the four-gluon amplitude that is the analog of the BDS ansatz in dimensional regularization. By evaluating our results at a number of kinematic points, and also in several kinematic limits, we establish the validity of this ansatz at the three-loop level. We also examine the Regge limit of the planar four-gluon amplitude using several different IR regulators: dimensional regularization, Higgs regularization, and a cutoff regularization. In the latter two schemes, it is shown that the leading logarithmic (LL) behavior of the amplitudes, and therefore the lowest-order approximation to the gluon Regge trajectory, can be correctly obtained from the ladder approximation of the sum of diagrams. In dimensional regularization, on the other hand, there is no single dominant set of diagrams in the LL approximation. We also compute the NLL and NNLL behavior of the L-loop ladder diagram using Higgs regularization. © SISSA 2010.
Guarding Whiteness: Disability, Eugenics, and Rhetorical Agency in Southern Renaissance Fiction
Date: 2023-01-01
Creator: Philip Carl Bonanno
Access: Open access
- This project explores fiction from white authors in the Southern Renaissance, specifically William Faulkner, Flannery O’Connor, and Carson McCullers. By examining their work alongside some of the performers that appeared historically in freak shows of the South, chapter one investigates how physically enfreaked individuals (usually phenotypically white) have access to power and the powers of whiteness. Chapter 2 interrogates how the South pathologizes promiscuity as mental illness with words such as moronic or feeble-mindedness, and the ramifications it has for the stratification on class divides among Southern elites and “White Trash.” The chapter seeks to answer the question of why, for a short period in the 1940s, white women were more likely to be punished with forced sterilization than Black women. Chapter 3 uncovers the rhetorical agency used by Benjy in Faulkner’s The Sound and the Fury, looking at how he resists the powers of whiteness through crip time and his trauma responses to his family that seeks to reinsert the Antebellum South. Using an intersectional approach of critical whiteness studies, disability studies, crip theory, and queer theory, relies on a variety of scholars including, but not limited to; David Mitchell and Sharon Snyder, Rosemarie Garland-Thompson, Richard Dyer, Matt Wray, Jasbir Puar, Ellen Samuels, and Allison Kafer. The primary works examined include promotional materials of historical freaks, McCullers’ The Ballad of a Sad Café, William Faulkner’s The Hamlet and The Sound and the Fury, and Flannery O’Connor short stories “Good Country People” and “A Temple of the Holy Ghost.”
Phenotypic divergence between sites in photosynthetic thermal response despite low genetic differentiation in Gulf of Maine Ascophyllum nodosum This record is embargoed.
- Embargo End Date: 2028-05-18
Date: 2023-01-01
Creator: Olivia Bronzo-Munich
Access: Embargoed
The Photocatalytic Degradation of 17α-ethynylestradiol (EE2) and Related Estrogens Access to this record is restricted to members of the Bowdoin community. Log in here to view.
- Restriction End Date: 2028-06-01
Date: 2023-01-01
Creator: Kevin Jairre Fleshman
Access: Access restricted to the Bowdoin Community
“Something most girls don’t do” An Ethnographic Study of Women in Extreme Sports
Date: 2022-01-01
Creator: Jacqueline Boben
Access: Open access
- Extreme sports, like skateboarding, whitewater kayaking, and skiing, have historically been male-dominated. As women’s participation in these sports grows, my research asks: how do women navigate sports spaces and cultures that have for so long been defined by men? To answer this question, I draw on ethnographic research on communities of skateboarders, whitewater kayakers and skiers conducted during the summer of 2021 in Bozeman, Montana. I found that the specific landscapes where these extreme sports take place are often conceptualized by participants as more masculine spaces. Within these spaces and communities, women participants often leverage gender performances associated with masculinity to gain entry into these male-dominated communities. Performing in more masculine ways mitigates feelings of hypervisibility, while also helping to build connections to established members of the community. More than simply fitting in, women find that these gendered performances also help them to build competence in the sport. At the same time, women are transforming skateboarding, whitewater kayaking, and skiing through their participation by creating opportunities for more dynamic and fluid gender performances.
Measurement of the ratio B(D0'e)B(D0K-e+e)
Date: 1991-01-01
Creator: G. Crawford, R. Fulton, K. K. Gan, T. Jensen, D. R., Johnson, H. Kagan, R. Kass, R. Malchow, F. Morrow, J. Whitmore, P. Wilson, D. Bortoletto, D. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P.J. Shipsey, M. Battle, P. Kim, H. Kroha, K. Sparks, E. H. Thorndike, C. H. Wang, M. S. Alam, I. J. Kim, B. Nemati, V. Romero
Access: Open access
- Using the CLEO detector at the Cornell Electron Storage Ring, we have performed a direct measurement of the ratio of D0 semileptonic branching fractions into vector and pseudoscalar final states. We find B(D0K*-e+e)B(D0K-e+e)=0.510.180.06, in agreement with the ratio derived by the E691 experiment which compares D+ and D0 final states. We also set an upper limit on the ratio B(D0*0-e+e)B(D0K*-e+e)<0.64 at 90% confidence level. © 1991 The American Physical Society.
Performing Sor Juana: Reimagining a Mexican Literary Figure in the 21st Century
Date: 2020-01-01
Creator: Uriel López-Serrano
Access: Open access
- Sor Juana Inés de la Cruz (c. 1648-1695) was a Mexican nun, poet, playwright, and scholar from the colonial era. She has become an icon for various global, social, and political movements. This project looks at four dramatic works created by Sorjuanistas who reimagine Sor Juana’s story for contemporary audiences living in the United States. The works included in this essay are Estela Portillo-Trambley’s Sor Juana (1986), Karen Zacarías’s The Sins of Sor Juana (2001), and Alicia Gaspar de Alba’s “Interview with Sor Juana Inés de la Cruz” (1998/2014) and her newest work, Juana: An Opera in Two Acts (2019), libretto by Carla Lucero. In addition to reimagining Sor Juana’s story, these dramatic works expose the sexism, racism, and xenophobia perpetuated by U.S institutions of power that discriminate against Latin@ and Chican@ individuals. By shedding light on the social injustices that existed during the colonial era, an embodied Sor Juana teaches audiences how to resist and mobilize against such oppressive powers. Sor Juana’s narrative on stage is necessary because she is a role model for Latin@s/Chican@s. Sorjuanistas remind us that the body can be used to retell the narratives of the silenced individuals who are victims of oppression. By developing heritage performances, Sorjuanistas challenge histories that silence and overlook social injustices. Witnessing Sor Juana on stage triggers emotional responses to the past which allow historical actors to obtain intellectual, emotional, and political agency in an effort to affirm and remember particular contemporary and future commitments to fighting social injustices.