Table of contents
Volume 422 Number 6930 pp359-453
Editorials
When the fighting is over... p359
The conflict in Iraq has divided world opinion, driving deep wedges even between longstanding allies. In its wake, rebuilding international collaboration will be vital — and in that task, scientists should take a lead.
doi:10.1038/422359a
In praise of good mentors p359
Scientific mentoring gets less recognition than it deserves, not least for its potential in helping researcher minority groups.
doi:10.1038/422359b
News
Academics fume as university refuses to reject tobacco dollars p361
Rex Dalton
doi:10.1038/422361a
Europe told to unite on spy satellites p361
Quirin Schiermeier
doi:10.1038/422361b
Analysts seek proof of military precision p362
Geoff Brumfiel
doi:10.1038/422362a
Inspectors face uphill struggle in search for banned weapons in Iraq p362
Natasha McDowell
doi:10.1038/422362b
Critics slam US over plans to use riot-control chemicals in the Gulf p363
Jonathan Knight
doi:10.1038/422363a
Conflicts undermine global forum's push for safe water p364
David Cyranoski
doi:10.1038/422364a
Mystery virus slow to yield its identity as patient numbers rise p364
Helen Pearson
doi:10.1038/422364b
Moderate flies flag for science on Capitol Hill p365
Geoff Brumfiel
doi:10.1038/422365a
news feature
Joan Roughgarden profile: A plea for diversity p368
Joan — formerly Jonathan — Roughgarden rejects established evolutionary ideas about gender roles and sexuality. Everyone wants to discuss the parallels with her personal experience. But the science speaks for itself, she tells Virginia Gewin.
Virginia Gewin
doi:10.1038/422368a
Battle of the mind p370
Plans for a vaccine for Alzheimer's disease were derailed last year when clinical trials revealed serious side-effects. But as Erika Check finds out, this approach could be about to get back on track.
Erika Check
doi:10.1038/422370a
Correspondence
Space: telescopes reveal the way forward p373
Astronauts' skills should be saved for major work in exploring the origins of the Universe.
Roger Angel
doi:10.1038/422373a
Space: next step is an International Moon Base p373
Ian Crawford
doi:10.1038/422373b
Illustration: database pictures tell a true story p374
Chris Catton and David Shotton
doi:10.1038/422374a
Illustration: images fail to portray dynamic skies p374
Joshua E. Barnes
doi:10.1038/422374b
Swift publication would reward good reviewers p374
Eugene V. Koonin
doi:10.1038/422374c
Commentary
The price of collecting life p375
Overcoming the challenges involved in computerizing herbarium specimens.
doi:10.1038/422375a
Book Reviews
Galileo points the way p377
Scientists should think big, but pay attention to the details.
Frank Wilczek reviews Galileo's Finger by Peter Atkins
doi:10.1038/422377a
The fat of the land p378
Peter Kopelman reviews The Hungry Gene: The Science of Fat and the Future of Thin by Ellen Ruppel Shell
doi:10.1038/422378a
Clinical science not to be sneezed at p379
Nigel Dimmock reviews Cold Wars: The Fight Against the Common Cold by David Tyrrell and Michael Fielder
doi:10.1038/422379a
The red parrot sketch p379
doi:10.1038/422379b
Science in culture p380
Martin Kemp reviews
doi:10.1038/422380a
News and Views
Genome evolution: It's all relative p383
By constructing evolutionary trees of genes, researchers have detected three big genome duplications in the history of the plant Arabidopsis, and one in the recent history of yeast.
Elizabeth A. Kellogg
doi:10.1038/422383a
Nonlinear dynamics: Synchronization from chaos p384
It isn't easy to create a semblance of order in interconnected dynamical systems. But a mathematical tool could be the means to synchronize systems more effectively — and keep chaos at bay.
Peter Ashwin
doi:10.1038/422384a
Neurobiology: Ballads of a protein quartet p385
The fate of neurons in the developing brain and in Alzheimer's disease may lie with a four-protein complex that regulates the cleavage of two molecules spanning the cell membrane. The role of each protein is now being unveiled.
Mark P. Mattson
doi:10.1038/422385a
Quantum computing: Logic gateway p387
Two groups have created logic gates using pairs of trapped ions. As components of a quantum computer, these gates have the potential to form part of a scaled-up, workable system.
Andrew Steane
doi:10.1038/422387a
Palaeontology: Combing the primate record p388
Fossils of bushbabies and lorises reported from deposits of the Fayum Depression in Egypt extend the known record for this group of primates from 20 million years to approximately 40 million years ago.
Robert D. Martin
doi:10.1038/422388a
100 and 50 years ago p389
doi:10.1038/422389a
Quantum physics: Wheels within wheels p391
Quasi-particles, an ingenious dodge used to simplify calculations on vast systems of interacting particles, seem to account for the fractional quantum Hall effect. But do we now need a further generation of quasi-particles?
Jurgen H. Smet
doi:10.1038/422391a
news and views in brief p393
doi:10.1038/422393a
Brief Communications
Digital analysis: Manual dexterity in Neanderthals p395
These primitive people may have been as handy with their tools as modern humans are.
Wesley A. Niewoehner, Aaron Bergstrom, Derrick Eichele, Melissa Zuroff and Jeffrey T. Clark
doi:10.1038/422395a
First paragraph | Full Text | PDF (154K)
Wetting properties: When larger drops evaporate faster p395
I. Leizerson, S. G. Lipson and A. V. Lyushnin
doi:10.1038/422395b
First paragraph | Full Text | PDF (154K)
Palaeobotany: Swimming sperm in an extinct Gondwanan plant p396
Harufumi Nishida, Kathleen B. Pigg and John F. Rigby
doi:10.1038/422396a
First paragraph | Full Text | PDF (176K)
Ecology (communications arising): Is fertilization efficiency misleading? p397
Sasha D. Hafner
doi:10.1038/422397a
First paragraph | Full Text | PDF (108K)
Ecology (communications arising): Is fertilization efficiency misleading? p398
David Tilman, Kenneth G. Cassman, Pamela A. Matson, Rosamond Naylor and Stephen Polasky
doi:10.1038/422398a
Article
Three-dimensional structural dynamics of myosin V by single-molecule fluorescence polarization p399
Joseph N. Forkey, Margot E. Quinlan, M. Alexander Shaw, John E. T. Corrie and Yale E. Goldman
doi:10.1038/nature01529
Abstract | Full Text | PDF (335K) | Supplementary information
Letters to Nature
An energetic stellar outburst accompanied by circumstellar light echoes p405
Howard E. Bond, Arne Henden, Zoltan G. Levay, Nino Panagia, William B. Sparks, Sumner Starrfield, R. Mark Wagner, R. L. M. Corradi and U. Munari
doi:10.1038/nature01508
First paragraph | Full Text | PDF (379K)
Realization of the Cirac–Zoller controlled-NOT quantum gate p408
Ferdinand Schmidt-Kaler, Hartmut Häffner, Mark Riebe, Stephan Gulde, Gavin P. T. Lancaster, Thomas Deuschle, Christoph Becher, Christian F. Roos, Jürgen Eschner and Rainer Blatt
doi:10.1038/nature01494
First paragraph | Full Text | PDF (325K)
See also: News and Views by Steane
Experimental demonstration of a robust, high-fidelity geometric two ion-qubit phase gate p412
D. Leibfried,
B. DeMarco,
V. Meyer,
D. Lucas,
M. Barrett,
J. Britton,
W. M. Itano,
B. Jelenkovi
,
C. Langer,
T. Rosenband
and
D. J. Wineland
doi:10.1038/nature01492
First paragraph | Full Text | PDF (191K)
See also: News and Views by Steane
An electronic Mach–Zehnder interferometer p415
Yang Ji, Yunchul Chung, D. Sprinzak, M. Heiblum, D. Mahalu and Hadas Shtrikman
doi:10.1038/nature01503
First paragraph | Full Text | PDF (322K)
African vegetation controlled by tropical sea surface temperatures in the mid-Pleistocene period p418
Enno Schefu
,
Stefan Schouten,
J. H. Fred Jansen
and
Jaap S. Sinninghe Damsté
doi:10.1038/nature01500
First paragraph | Full Text | PDF (461K)
Fossil evidence for an ancient divergence of lorises and galagos p421
Erik R. Seiffert, Elwyn L. Simons and Yousry Attia
First paragraph | Full Text | PDF (327K) | Supplementary information
See also: News and Views by Martin
Earliest known crown-group salamanders p424
Ke-Qin Gao and Neil H. Shubin
doi:10.1038/nature01491
First paragraph | Full Text | PDF (924K)
Ecological and immunological determinants of influenza evolution p428
Neil M. Ferguson, Alison P. Galvani and Robin M. Bush
doi:10.1038/nature01509
First paragraph | Full Text | PDF (1,589K) | Supplementary information
Unravelling angiosperm genome evolution by phylogenetic analysis of chromosomal duplication events p433
John E. Bowers, Brad A. Chapman, Junkang Rong and Andrew H. Paterson
doi:10.1038/nature01521
First paragraph | Full Text | PDF (2,705K) | Supplementary information
See also: News and Views by Kellogg
The role of presenilin cofactors in the 
-secretase complex p438
Nobumasa Takasugi, Taisuke Tomita, Ikuo Hayashi, Makiko Tsuruoka, Manabu Niimura, Yasuko Takahashi, Gopal Thinakaran and Takeshi Iwatsubo
doi:10.1038/nature01506
First paragraph | Full Text | PDF (378K) | Supplementary information
See also: News and Views by Mattson
Reactive oxygen species produced by NADPH oxidase regulate plant cell growth p442
Julia Foreman, Vadim Demidchik, John H. F. Bothwell, Panagiota Mylona, Henk Miedema, Miguel Angel Torres, Paul Linstead, Silvia Costa, Colin Brownlee, Jonathan D. G. Jones, Julia M. Davies and Liam Dolan
doi:10.1038/nature01485
First paragraph | Full Text | PDF (428K) | Supplementary information
Hidden complexity in the mechanical properties of titin p446
Philip M. Williams, Susan B. Fowler, Robert B. Best, José Luis Toca-Herrera, Kathryn A. Scott, Annette Steward and Jane Clarke
doi:10.1038/nature01517
First paragraph | Full Text | PDF (248K) | Supplementary information
New on the Market
Bench marks p450
Everyday equipment for routine analysis.
doi:10.1038/422450a
Naturejobs
ProspectsYou can't go home again p451
Paul Smaglik
doi:10.1038/nj6930-451a
SPECIAL REPORT
Making the move into science policy p452
Virginia Gewin
doi:10.1038/nj6930-452a
