Showing 4121 - 4130 of 5713 Items
Measurement of two-photon production of the χc2
Date: 1994-01-01
Creator: J. Dominick, S. Sanghera, V. Shelkov, T. Skwarnicki, R., Stroynowski, I. Volobouev, P. Zadorozhny, M. Artuso, D. He, M. Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, M. Thulasidas, G. Vasseur, G. Zhu, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, P. Sheldon, D. S. Akerib, B. Barish, M. Chadha, S. Chan, D. F. Cowen
Access: Open access
- The CLEO II detector is used to search for the production of χc2 states in two-photon interactions. We use the signature χc2→γJ/ ψ→γl+l- with l=e,μ. Using 1.49 fb-1 of data taken with beam energies near 5.29 GeV, the two-photon width of the χc2 is determined to be Γ(χc2→γγ)=1.08±0.30(stat)±0.26(syst) keV, in agreement with predictions from perturbative QCD. © 1994 The American Physical Society.
From Left to Right? White Evangelical Politicization, GOP Incorporation, and the Effect of Party Affiliation on Group Opinion Change
Date: 2013-05-01
Creator: Devon B Shapiro
Access: Open access
- While most white evangelicals in America have advocated moral, cultural, and social conservatism since the Founding, the group’s fiscal and social welfare preferences have been more volatile. Early 20th century evangelicals tended to be socially conservative, fiscally liberal, and, to the extent that they were politicized, mostly Democratic partisans. Since that time, not only have white evangelicals abandoned the Democratic Party, but also they have largely become fiscal and social welfare conservatives. I attempt to explain that transformation. I first examine the dynamics of white evangelical politicization and GOP incorporation, providing social and historical context to the political and partisan calculations of white evangelicals since the 1970s. Further, I propose a party affiliation effect that helps to explain white evangelical fiscal and social welfare conservatism. This effect asserts that partisanship penetrates individual conceptions of political issues. In the case of white evangelicals, I argue that the group affiliated with the GOP largely on the basis of socio-moral issues and concerns. Partly as a result of that affiliation, group opinion on fiscal policy began to drift to the right, toward the Republican Party status quo. Consistent with this claim, I provide longitudinal analyses of ANES and GSS data that shed light on the timing of opinion changes. As we would expect, white evangelical opinion on economic issues was closer to Democratic partisans during the 1960s and moved moved toward Republicans during the 1980s-1990s.
Systemic Risk in the Airline Industry: Investigating the Effects of Network Interconnectedness on MES Access to this record is restricted to members of the Bowdoin community. Log in here to view.
Date: 2020-01-01
Creator: Angela Goldshteyn
Access: Access restricted to the Bowdoin Community
Isolation of nine microsatellite loci in Dolichogenidea homoeosomae (Hymenoptera) a parasitoid of the sunflower moth Homoeosoma electellum (Lepidoptera)
Date: 2006-03-01
Creator: Vladimir Douhovnikoff, Caterina Nerney, George K. Roderick, Craig H. Newton, Stephen C., Welter
Access: Open access
- Nine microsatellite loci were isolated from the insect Dolichogenidea homoeosomae (Hymenoptera: Braconidae), an important parasitoid of the sunflower moth Homosoeosoma electellum (Lepidoptera: Pyralidae), and assayed for polymorphism. All nine loci were polymorphic within the five populations tested, with two to 14 alleles per locus. Expected and observed heterozygosities ranged from 0.39 to 0.90 and 0.25 to 0.72 respectively. These are the first microsatellite primers developed for D. homeosomae and will be useful for studies of population dynamics and connectivity. © 2006 Blackwell Publishing Ltd.
Level-rank duality of untwisted and twisted D-branes of the over(so, ̂) (N)K WZW model
Date: 2007-12-24
Creator: Stephen G. Naculich, Benjamin H. Ripman
Access: Open access
- We analyze the level-rank duality of untwisted and ε-twisted D-branes of the over(so, ̂) (N)K WZW model. Untwisted D-branes of over(so, ̂) (N)K are characterized by integrable tensor and spinor representations of over(so, ̂) (N)K. Level-rank duality maps untwisted over(so, ̂) (N)K D-branes corresponding to (equivalence classes of ) tensor representations onto those of over(so, ̂) (K)N. The ε-twisted D-branes of over(so, ̂) (2 n)2 k are characterized by (a subset of ) integrable tensor and spinor representations of over(so, ̂) (2 n - 1)2 k + 1. Level-rank duality maps spinor ε-twisted over(so, ̂) (2 n)2 k D-branes onto those of over(so, ̂) (2 k)2 n. For both untwisted and ε-twisted D-branes, we prove that the spectrum of an open string ending on these D-branes is isomorphic to the spectrum of an open string ending on the level-rank-dual D-branes. © 2007 Elsevier B.V. All rights reserved.
Twisted D-branes of the over(su, ̂) (N)K WZW model and level-rank duality
Date: 2006-10-30
Creator: Stephen G. Naculich, Howard J. Schnitzer
Access: Open access
- We analyze the level-rank duality of ωc-twisted D-branes of over(su, ̂) (N)K (when N and K > 2). When N or K is even, the duality map involves Z2-cominimal equivalence classes of twisted D-branes. We prove the duality of the spectrum of an open string stretched between ωc-twisted D-branes, and ascertain the relation between the charges of level-rank-dual ωc-twisted D-branes. © 2006 Elsevier B.V. All rights reserved.