. - - Science: This Week's News http://www.sciencemag.org Summaries of this week's top stories, from Science Magazine American Association for the Advancement of Science Stewart Wills (mailto:swills@aaas.org) Copyright 2007 American Association for the Advancement of Science 2007-03-07T18:04:10-05:00 en - - - Science http://www.sciencemag.org/icons/banner/title.gif http://www.sciencemag.org - [NEWS] NUCLEAR WEAPONS: Livermore Lab Dips Into the Past to Win Weapons Design Contest http://www.sciencemag.org/cgi/content/full/315/5817/1348?rss=1 Weapons physicists at Lawrence Livermore National Laboratory, with help from Sandia National Laboratories, have won a Department of Energy contest to design a new H-bomb by imitating an already-tested weapon just enough to prove their design will do the job. (Read more.)

Author: Eli Kintisch
Eli Kintisch
- [NEWS] WILDLIFE STUDIES: Researchers Explore Alternatives to Elephant Culling http://www.sciencemag.org/cgi/content/full/315/5817/1349?rss=1 PRETORIA, SOUTH AFRICA--An ambitious new research program announced last week as part of the South African government's draft policy to manage its growing elephant population would allow limited culling--which is not being done in any African country--if other approaches fail. (Read more.)

Author: Robert Koenig
Robert Koenig
- [NEWS] METEOROLOGY: A Dose of Dust That Quieted an Entire Hurricane Season? http://www.sciencemag.org/cgi/content/full/315/5817/1351a?rss=1 In the 27 February issue of Eos, two climatologists suggest that dust blown across the Atlantic from the Sahara caused the 2006 hurricane season to be far less active than had been forecasted. (Read more.)

Author: Richard A. Kerr
Richard A. Kerr
- [NEWS] EVOLUTION: Robot Suggests How the First Land Animals Got Walking http://www.sciencemag.org/cgi/content/full/315/5817/1352a?rss=1 A salamanderlike machine described on page 1416 of this issue of Science has demonstrated that merely changing the strength of the brain signal driving locomotion can determine whether an animal walks or swims. (Read more.)

Author: Elizabeth Pennisi
Elizabeth Pennisi
- [NEWS] U.S. SCIENCE POLICY: Report Tells NSF to Think More Boldly http://www.sciencemag.org/cgi/content/full/315/5817/1352b?rss=1 A new draft report from its oversight body calls on the U.S. National Science Foundation to be more receptive to funding wild-eyed ideas that, just maybe, could revolutionize science. (Read more.)

Author: Jeffrey Mervis
Jeffrey Mervis
- [NEWS FOCUS] RESEARCH FACILITIES: China Supersizes Its Science http://www.sciencemag.org/cgi/content/full/315/5817/1354?rss=1 BEIJING--With little fanfare, China is about to spend hundreds of millions of dollars to build major science facilities for everything from crystallography to remote sensing. (Read more.)

Authors: Xin Hao, Hepeng Jia
Xin Hao
- [NEWS FOCUS] RETROVIRUS MEETING: Hope on New AIDS Drugs, but Breast-Feeding Strategy Backfires http://www.sciencemag.org/cgi/content/full/315/5817/1357?rss=1 LOS ANGELES, CALIFORNIA--Two novel drugs show promise in hard-to-treat patients, but breast-feeding studies underscore the difficulty of applying advances in the real world. (Read more.)

Author: Jon Cohen
Jon Cohen
- [NEWS FOCUS] EVOLUTION: Jurassic Genome http://www.sciencemag.org/cgi/content/full/315/5817/1358?rss=1 Dinosaur fossils are helping scientists tease apart why the sizes of genomes vary so dramatically among species. (Read more.)

Author: Carl Zimmer
Carl Zimmer
- [NEWS FOCUS] NEUROSCIENCE: Hunting for Meaning After Midnight http://www.sciencemag.org/cgi/content/full/315/5817/1360?rss=1 The brain is anything but quiet during sleep. Is it making memories (as is suggested by a new study on page 1426 of this issue of Science), is it searching for insight, or is it up to something else entirely? (Read more.)

Author: Greg Miller
Greg Miller
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