Table of contents
Volume 441 Number 7095 ppxi-906
In this issue (15 June 2006)
Also this week
Authors
Making the paper: Jesús Mavárez pxi
Hybrids — and a marker pen — offer insights into a butterfly family tree.
doi:10.1038/7095xia
Abstractions pxi
doi:10.1038/7095xib
On the web: Open peer-review debate pxi
doi:10.1038/7095xic
Editorials
Reaching a tipping point p785
A popular new paradigm for the nature of change pertains more to the social and political worlds than it does to the physical one.
doi:10.1038/441785a
See also: Editor's summary
A fresh start p785
Will a change of management at Los Alamos put basic research under pressure?
doi:10.1038/441785b
Cash-per-publication... p785
.....is an idea best avoided.
doi:10.1038/441786a
News
Science academies target G8 agenda p790
National institutions coordinate efforts on global politics.
Declan Butler
doi:10.1038/441790a
Koreans admit disguising stem-cell lines p790
Police investigation uncovers hospital's subterfuge.
David Cyranoski and Erika Check
doi:10.1038/441790b
Sidelines p792
doi:10.1038/441792a
Cash for papers: putting a premium on publication p792
Trend for financial incentives spreads in Asia.
Ichiko Fuyuno and David Cyranoski
doi:10.1038/441792b
Goal fever at the World Cup p793
Why the first strike counts.
Michael Hopkin
doi:10.1038/441793a
See also: Editor's summary
Born or made? Debate on mouse eggs reignites p795
Doubts deepen over whether mammals can make new eggs
Kendall Powell
doi:10.1038/441795a
Nuclear reincarnation p796
Using nuclear power on a grand scale requires that spent nuclear fuel be reused. Emma Marris finds out which of the world's nations could jump on a reprocessing bandwagon.
doi:10.1038/441796a
Snapshot: Atlantic in bloom p798
Plankton death throes off the Emerald Isle.
Jim Giles
doi:10.1038/441798a
US satellite system loses climate sensors p798
Joint civilian-military programme culls weather instruments.
Jacqueline Ruttimann
doi:10.1038/441798b
News in brief p800
doi:10.1038/441800a
Correction p801
doi:10.1038/441801a
News Features
Climate change: The tipping point of the iceberg p802
Could climate change run away with itself? Gabrielle Walker looks at the balance of evidence.
doi:10.1038/441802a
See also: Editor's summary
Gerontology: Eat your cake and have it p807
Reducing your calorie intake makes you live longer — if you're a rat or a worm. Laura Spinney asks whether the same holds for humans — and if it does, whether the benefits could be put in a pill.
doi:10.1038/441807a
Business
Burst of energy p810
More and more venture capitalists are backing clean technology in the United States, but will it take off? Virginia Gewin reports.
doi:10.1038/441810a
In brief p811
doi:10.1038/441811a
Market watch p811
Colin Macilwain
doi:10.1038/441811b
Correspondence
Women editors: change comes from focused action p812
Linda G. Baum
doi:10.1038/441812a
Women editors: we need more female scientists p812
Sarah P. Otto
doi:10.1038/441812b
Women editors: nominees turned down Evolution job p812
Don Waller
doi:10.1038/441812c
'Referee factor' would reward a vital contribution p812
Rory Wilson
doi:10.1038/441812d
Still light-years away from articulating the infinite p812
Ian Stewart
doi:10.1038/441812e
Books and Arts
In your own image p813
Care must be taken when looking for natural selection to explain the evolution of human behaviour.
Kenneth M. Weiss and Anne V. Buchanan review Before the Dawn: Recovering the Lost History of Our Ancestors by Nicholas Wade
doi:10.1038/441813a
Reaching for the stars p814
Giovanni Bignami reviews Europe's Quest for the Universe by Lodewijk Woltjer
doi:10.1038/441814a
See also: Editor's summary
A growing urban problem p815
Frank Schweitzer reviews Cities and Complexity: Understanding Cities with Cellular Automata, Agent-Based Models, and Fractals by Michael Batty
doi:10.1038/441815a
A healthy interest p815
W. F. Bynum reviews Doctor Franklin's Medicine by Stanley Finger
doi:10.1038/441815b
Science in culture: Home from home p816
History is brought to life at Benjamin Franklin's house in London.
Colin Martin
doi:10.1038/441816a
See also: Editor's summary
News and Views
Structural biology: Images from the surface of HIV p817
Human and monkey immunodeficiency viruses are studded with 'spikes' that enable them to infect cells. Structural studies reveal that these spikes are tripod-like assemblies that cluster on the virus surface.
Dennis R. Burton
doi:10.1038/441817a
See also: Editor's summary
Material science: Oxygen breaks into carbon world p818
When oxygen atoms bind to a graphite surface, they fall into line and make bridges across carbon atoms. This is the spearhead of a chemical attack in which the atomic arrangement of solid carbon is torn apart.
Pulickel M. Ajayan and Boris I. Yakobson
doi:10.1038/441818a
Neurodegeneration: Good riddance to bad rubbish p819
Autophagy — cellular 'self-eating' — can be induced by stress, but it also acts continuously in a housekeeping role, disposing of unwanted proteins. Can it protect against neurodegenerative diseases?
Daniel J. Klionsky
doi:10.1038/441819a
See also: Editor's summary
Quantum physics: United through repulsion p820
Mutually repulsive atoms placed at periodic intervals in a 'crystal of light' can, counterintuitively, be forced into stable couplings. That theoretical prediction has just seen experimental confirmation.
Leonardo Fallani and Massimo Inguscio
doi:10.1038/441820a
See also: Editor's summary
Biomaterials: Silk spin-off p821
Helen Dell
doi:10.1038/441821a
Neuroeconomics: Best to go with what you know? p822
In a changing world, how do we decide our best option? How do we settle between picking something familiar or trying out a new, possibly more rewarding, choice?
Daeyeol Lee
doi:10.1038/441822a
See also: Editor's summary
Solid-state chemistry: A glass of carbon dioxide p823
Carbon is unusual in its family of elements because it has gaseous oxides. But under high pressure, carbon dioxide forms crystalline solids and can become a glass — so revealing the chemical family resemblance.
Paul F. McMillan
doi:10.1038/441823a
See also: Editor's summary
Obituary: Bruce Merrifield (1921–2006) p824
Inventor of solid-phase peptide synthesis.
Stephen Kent
doi:10.1038/441824a
Review
Accretion of the Earth and segregation of its core p825
Bernard J. Wood, Michael J. Walter and Jonathan Wade
doi:10.1038/nature04763
Abstract | Full Text | PDF (766K)
See also: Editor's summary
Articles
A common mass scaling for satellite systems of gaseous planets p834
Robin M. Canup and William R. Ward
doi:10.1038/nature04860
Abstract | Full Text | PDF (305K) | Supplementary information
See also: Editor's summary
Single-cell proteomic analysis of S. cerevisiae reveals the architecture of biological noise p840
John R. S. Newman, Sina Ghaemmaghami, Jan Ihmels, David K. Breslow, Matthew Noble, Joseph L. DeRisi and Jonathan S. Weissman
doi:10.1038/nature04785
Abstract | Full Text | PDF (1,099K) | Supplementary information
See also: Editor's summary
Distribution and three-dimensional structure of AIDS virus envelope spikes p847
Ping Zhu, Jun Liu, Julian Bess, Jr, Elena Chertova, Jeffrey D. Lifson, Henry Grisé, Gilad A. Ofek, Kenneth A. Taylor and Kenneth H. Roux
doi:10.1038/nature04817
Abstract | Full Text | PDF (491K) | Supplementary information
See also: Editor's summary | News and Views by Burton
Letters
Repulsively bound atom pairs in an optical lattice p853
K. Winkler, G. Thalhammer, F. Lang, R. Grimm, J. Hecker Denschlag, A. J. Daley, A. Kantian, H. P. Büchler and P. Zoller
doi:10.1038/nature04918
First paragraph | Full Text | PDF (291K)
See also: Editor's summary | News and Views by Fallani & Inguscio
Amorphous silica-like carbon dioxide p857
Mario Santoro, Federico A. Gorelli, Roberto Bini, Giancarlo Ruocco, Sandro Scandolo and Wilson A. Crichton
doi:10.1038/nature04879
First paragraph | Full Text | PDF (433K) | Supplementary information
See also: Editor's summary | News and Views by McMillan
Control of four stereocentres in a triple cascade organocatalytic reaction p861
Dieter Enders, Matthias R. M. Hüttl, Christoph Grondal and Gerhard Raabe
doi:10.1038/nature04820
First paragraph | Full Text | PDF (307K) | Supplementary information
The importance of the diurnal and annual cycle of air traffic for contrail radiative forcing p864
Nicola Stuber, Piers Forster, Gaby Rädel and Keith Shine
doi:10.1038/nature04877
First paragraph | Full Text | PDF (214K)
See also: Editor's summary
Speciation by hybridization in Heliconius butterflies p868
Jesús Mavárez, Camilo A. Salazar, Eldredge Bermingham, Christian Salcedo, Chris D. Jiggins and Mauricio Linares
doi:10.1038/nature04738
First paragraph | Full Text | PDF (360K) | Supplementary information
See also: Editor's summary
Sperm storage induces an immunity cost in ants p872
Boris Baer, Sophie A. O. Armitage and Jacobus J. Boomsma
doi:10.1038/nature04698
First paragraph | Full Text | PDF (222K) | Supplementary information
Cortical substrates for exploratory decisions in humans p876
Nathaniel D. Daw, John P. O'Doherty, Peter Dayan, Ben Seymour and Raymond J. Dolan
doi:10.1038/nature04766
First paragraph | Full Text | PDF (292K) | Supplementary information
See also: Editor's summary | News and Views by Lee
Loss of autophagy in the central nervous system causes neurodegeneration in mice p880
Masaaki Komatsu, Satoshi Waguri, Tomoki Chiba, Shigeo Murata, Jun-ichi Iwata, Isei Tanida, Takashi Ueno, Masato Koike, Yasuo Uchiyama, Eiki Kominami and Keiji Tanaka
doi:10.1038/nature04723
First paragraph | Full Text | PDF (521K) | Supplementary information
See also: Editor's summary | News and Views by Klionsky
Suppression of basal autophagy in neural cells causes neurodegenerative disease in mice p885
Taichi Hara, Kenji Nakamura, Makoto Matsui, Akitsugu Yamamoto, Yohko Nakahara, Rika Suzuki-Migishima, Minesuke Yokoyama, Kenji Mishima, Ichiro Saito, Hideyuki Okano and Noboru Mizushima
doi:10.1038/nature04724
First paragraph | Full Text | PDF (514K) | Supplementary information
See also: Editor's summary | News and Views by Klionsky
Interleukin-2 signals during priming are required for secondary expansion of CD8+ memory T cells p890
Matthew A. Williams, Aaron J. Tyznik and Michael J. Bevan
doi:10.1038/nature04790
First paragraph | Full Text | PDF (536K) | Supplementary information
Signal peptide peptidase is required for dislocation from the endoplasmic reticulum p894
Joana Loureiro, Brendan N. Lilley, Eric Spooner, Vanessa Noriega, Domenico Tortorella and Hidde L. Ploegh
doi:10.1038/nature04830
First paragraph | Full Text | PDF (451K) | Supplementary information
CRD-BP mediates stabilization of 
TrCP1 and c-myc mRNA in response to 
-catenin signalling p898
Felicite K. Noubissi, Irina Elcheva, Neehar Bhatia, Abbas Shakoori, Andrei Ougolkov, Jianghuai Liu, Toshinari Minamoto, Jeff Ross, Serge Y. Fuchs and Vladimir S. Spiegelman
doi:10.1038/nature04839
First paragraph | Full Text | PDF (462K) | Supplementary information
Corrigendum: A brain-specific microRNA regulates dendritic spine development p902
Gerhard M. Schratt, Fabian Tuebing, Elizabeth A. Nigh, Christina G. Kane, Mary E. Sabatini, Michael Kiebler and Michael E. Greenberg
doi:10.1038/nature04909
Corrigendum: Brain-state- and cell-type-specific firing of hippocampal interneurons in vivo p902
Thomas Klausberger, Peter J. Magill, László F. Márton, J. David B. Roberts, Philip M. Cobden, György Buzsáki and Peter Somogyi
doi:10.1038/nature04910
Corrigendum: Universal scaling of respiratory metabolism, size and nitrogen in plants p902
Peter B. Reich, Mark G. Tjoelker, Jose-Luis Machado and Jacek Oleksyn
doi:10.1038/nature04911
Naturejobs
ProspectProspect p903
Taking a break can lend focus.
Paul Smaglik
doi:10.1038/nj7095-903a
Career Views
Nicholas Schork, director, Center for Biomedical Informatics; co-director, Cancer Genetics Program, University of California, San Diego p904
Nicholas Schork moves on to biomedical informatics.
Virginia Gewin
doi:10.1038/nj7095-904a
A physics walkabout p904
NSF postdoc does physics down under.
Charles Tahan
doi:10.1038/nj7095-904b
Graduation joy p904
The joy and trepidation of graduation.
Andreas Andersson
doi:10.1038/nj7095-904c
Highlights
Highlight: Francophone
doi:10.1038/nj0120
Futures
Great unreported discoveries no. 163 p906
It's good to talk...
Mike Resnick
doi:10.1038/441906a