Coupled-channel effective field theory and proton-7^7Li scattering

We apply the renormalisation group (RG) to analyse scattering by short-range forces in systems with coupled channels. For two S-wave channels, we find three fixed points, corresponding to systems with zero, one or two bound or virtual states at threshold. We use the RG to determine the power countings for the resulting effective field theories. In the case of a single low-energy state, the resulting theory takes the form of an effective-range expansion in the strongly interacting channel. We also extend the analysis to include the effects of the Coulomb interaction between charged particles. The approach is then applied to the coupled $p+{^7}$Li and $n+{^7}$Be channels which couple to a $J^P=2^-$ state of $^8$Be very close to the $n+{^7}$Be threshold. At next-to-leading order, we are able to get a good description of the $p+{^7}$Li phase shift and the ${^7}$Be(n,p)${^7}$Li cross section using four parameters. Fits at one order higher are similarly good but the available data are not sufficient to determine all five parameters uniquely.Comment: 22 pages, 2 figures, RevTeX4, typos corrected, accepted for publication in European Physical Journal

Adherence And Growth Of Endothelial Cells On Silk Fibroin Dense Membranes

[No abstract available]2839Altman, G.H., Diaz, F., Jakuba, C., Calabro, T., Horan, R.L., Chen, J., Lu, H., Kaplan, D.L., Silkbased biomaterials (2003) Biomaterials, 24, p. 401Servoli, E., Maniglio, D., Motta, A., Predazzer, R., Migliaresi, C., Surface properties of silk fibroin films and their interaction with fibroblasts (2005) Macromol Biosci., 5, p. 1175Gupta, M.K., Khokhar, S.K., Phillips, D.M., Sowards, L.A., Drummy, L.F., Kadakia, M.P., Naik, R.R., Patterned silk films cast from ionic liquid solubilized fibroin as scaffolds for cell growth (2007) Langmuir, 23, p. 1315Fuchs, S., Motta, A., Migliaresi, C., Kirkpatrick, C.J., Outgrowth endothelial cells isolated and expanded from human peripheral blood progenitor cells as a potential source of autologous cells for endothelialization of silk fibroin biomaterials (2006) Biomaterials, 27, p. 5399Feugier, P., Black, R.A., Hunt, J.A., How, T.V., Attachment, morphology and adherence of human endothelial cells to vascular prosthesis materials under the action of shear stress (2005) Biomaterials, 26, p. 145

Lyophilized Bovine Pericardium Coated With Silk Fibroin Solution As An Alternative To Prevent Calcification Of Cardiovascular Bioprosthesis: Preliminary Calcification Results

[No abstract available]1509Pettenazzo, E., Dynamic in vitro calcification of bioprosthetic porcine valves: Evidence of apatite crystallization (2001) The Journal of Thoracic and Cardiovascular Surgery, 121 (3), pp. 500-509Aimoli, C.G., Lyophilized bovine pericardium treated with a phenethylaminediepoxide as an alternative to preventing calcification of cardiovascular bioprosthesis: Preliminary calcification results (2007) Artificial Organs, 31 (4), pp. 278-28