The Rockefeller University Press $30.00 J. Cell Biol. Vol. 186 No. 2 269–282 www.jcb.org/cgi/doi/10.1083/jcb.200901021 JCB 269 Correspondence to Michael J. Caplan: [email protected] Abbreviations used in this paper: BG, benzylguanine; CHX, cycloheximide; E-cadherin, epithelial cadherin; LDLR, low density lipoprotein receptor; PGTI, postGolgi transport intermediate; PM, plasma membrane; RE...

We prove that, for any irrational number α, there are infinitely many primes p such that ‖αp‖ < p−1/3+ . Here ‖y‖ denotes the distance from y to the nearest integer. The proof uses Harman’s sieve method with arithmetical information coming from bounds for averages of Kloosterman sums.

Psittacine beak and feather disease virus (PBFDV) and avian polyomavirus (APV) are the most common viral diseases in psittacine birds, both affecting feathers and physical appearance of birds. Between 2005 and 2009, a total of 269 samples were collected from birds presented at veterinary clinics, shelters and rescue centers of wildlife in Costa Rica. They belonged to 19 species of psittacine bi...

1 , A. Stroupe 2 , H. Aghazarian 3 , M. Garrett 4 , P. Younse 5 , and M. Powell 6 . 1 Jet Propulsion Laboratory, MS 198-219, 4800 Oak Grove Drive, Pasadena, CA 91109, [email protected]; 2 Jet Propulsion Laboratory, MS 198-219, 4800 Oak Grove Drive, Pasadena, CA 91109, [email protected]; 3 Jet Propulsion Laboratory, MS 198219, 4800 Oak Grove Drive, Pasadena, CA 91109, Hran...

Let S∞ = A∞ × B∞ be a self-similar product Cantor set in the complex plane, defined via S∞ = ⋃L j=1 Tj(S∞), where Tj : C→ C have the form Tj(z) = 1 Lz+zj and {z1, . . . , zL} = A+iB for some A,B ⊂ R with |A|, |B| > 1 and |A||B| = L. Let SN be the L−N -neighbourhood of S∞, or equivalently (up to constants), its N -th Cantor iteration. We are interested in the asymptotic behaviour as N → ∞ of the...