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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


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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


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Research Highlights

Research highlights p788

doi:10.1038/441788a


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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


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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


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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


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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


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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


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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


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Review

Accretion of the Earth and segregation of its core p825

Bernard J. Wood, Michael J. Walter and Jonathan Wade

doi:10.1038/nature04763

See also: Editor's summary


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Articles

A common mass scaling for satellite systems of gaseous planets p834

Robin M. Canup and William R. Ward

doi:10.1038/nature04860

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

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

See also: Editor's summary | News and Views by Burton


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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

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

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


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

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

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


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

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

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

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


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


CRD-BP mediates stabilization of betaTrCP1 and c-myc mRNA in response to beta-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


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


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Naturejobs

Prospect

Prospect 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


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Futures

Great unreported discoveries no. 163 p906

It's good to talk...

Mike Resnick

doi:10.1038/441906a


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