Science (march)

18 March 2005 Vol. 307 No. 5716 Pages 1673–1820 $10 C OVER Repeated images of an optical cross section through a Drosophila wing epithelium very early in development, illustrating that regions lacking a morphogenetic signal (deprived regions shown in blue) also lack a well-organized apical cytoskeleton (yellow band, microtubules and F-actin together). As described on page 1785, extracellular signaling pathways can direct appendage development through position-specific effects on epithelial architecture. [Image: M. Gibson] DEPARTMENTS 1685 1687 1691 1693 1698 1701 1791 1792 SCIENCE ONLINE THIS WEEK IN SCIENCE EDITORIAL by Hans Wigzell A European CDC? EDITORS’ CHOICE CONTACT SCIENCE NETWATCH NEW PRODUCTS SCIENCE CAREERS BIOETHICS Anticloning Forces Launch Second-Term Offensive U.N. Settles on Nonbinding Resolution 1703 1705 1716 PUBLIC HEALTH Provocative Study Says Obesity May Reduce U.S. Life Expectancy 1718 RANDOM SAMPLES LETTERS NEWS OF THE WEEK 1702 Volume 307 18 March 2005 Number 5716 1720 Combining Parenting and a Science Career C. Djerassi; A. L. Lewis et al.; A. Peekna. Crying “Whorf” D. Casasanto. Response P. Gordon. Recombinant Virus Bank for Gene Delivery K. K. Yokoyama et al. 1722 Corrections and Clarifications 1723 ORNITHOLOGY Nature’s Music The Science of Birdsong P. Marler and H. Slabbekoorn, Eds., reviewed by B. Lohr 1712 CONFLICT-OF-INTEREST POLICY NIH Rules Make Some Pack, Others Plead EVOLUTION Special Hemoglobin Helped Swim Bladders Give Fish Diversity a Lift BOOKS ET AL. 1724 APPLIED PHYSICS The Story of Semiconductors J. Orton, reviewed by J. R. Chelikowsky related Research Article page 1752 1705 1706 1706 1707 1708 1708 1709