Naturejobs

Chemists buck the trend p3

Paul Smaglik

doi:10.1038/nj6879-03a

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Easing the journey back home p5

Jan Schmollinger

doi:10.1038/nj6879-05a

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doi:10.1038/nj6879-99a

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Opinion

The case for the JASONs p351

Two of the most secretive research operations in the United States have chosen a strange time to embark on an unseemly and unnecessary public row, potentially undermining the advice available to the administration on national defence.

doi:10.1038/416351a

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Rights, wrongs and ignorance p351

Whether or not animals have 'rights', we should learn more about their capacity for suffering.

doi:10.1038/416351b

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News

Covert science counsel cut off as nomination row piques Pentagon p353

Geoff Brumfiel

doi:10.1038/416353a

Full Text | PDF (209K)

Biologists question adult stem-cell versatility p354

Natalie DeWitt and Jonathan Knight

doi:10.1038/416354a

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Toxic transfer gets cool response p354

Virginia Gewin

doi:10.1038/416354b

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Anger at halal law imperils German research p355

Quirin Schiermeier and Marion Kerstholt

doi:10.1038/416355a

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Alternative therapies leave US commission divided p355

Erika Check

doi:10.1038/416355b

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Hints of bone bounties rile fossil hunters p356

Rex Dalton

doi:10.1038/416356a

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Babies' cancer screens 'not needed' p356

Alison Abbott

doi:10.1038/416356b

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Software firm falls victim to shifting bioinformatics needs p357

Jonathan Knight

doi:10.1038/416357a

Full Text | PDF (73K)

Baiting plan to remove fox threat to Tasmanian wildlife p357

Carina Dennis

doi:10.1038/416357b

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news in brief p358

doi:10.1038/416358a

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news feature

Conflicts of interest: Can you believe what you read? p360

Scientists' financial interests can bias the papers and review articles that they write, studies suggest. But what can editors do to police the issue? Frank van Kolfschooten examines journals' policies on conflicts of interest.

Frank van Kolfschooten

doi:10.1038/416360a

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Neuroimaging: The sight of two brains talking p364

By simultaneously scanning the brains of contestants playing a simple game, researchers aim to study how social interactions affect brain activity. Steve Nadis meets the scientists who think two heads are better than one.

Steve Nadis

doi:10.1038/416364a

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Correspondence

The rewards of science extend far beyond publication p365

Good research and wise mentorship should be valued more highly than a name added to a paper.

Ben A. Barres

doi:10.1038/416365a

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The perils of putting career before all else p365

Bruce Spiegelman

doi:10.1038/416365b

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A quizzical view pays clear dividends p365

Michael Ashburner

doi:10.1038/416365c

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Film industry shows how to give credit where due p365

Robert P. Bywater

doi:10.1038/416365d

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Arab science is not stifled by censorship p365

Omar Bizri

doi:10.1038/416365e

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Commentary

Science policy: Policy, politics and perspective p367

The scientific community must distinguish analysis from advocacy.

doi:10.1038/416367a

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Book Reviews

What the Nahua knew p369

The secrets of Mexico's plants had been revealed by the sixteenth century.

Karen Reeds reviews The Mexican Treasury: The Writings of Dr. Francisco Hernández and Searching for the Secrets of Nature: The Life and Works of Dr. Francisco Hernández

doi:10.1038/416369a

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Hominid economics p370

Christopher Wills reviews Second Nature: Economic Origins of Human Evolution By Haim Ofek

doi:10.1038/416370a

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All the science that's fit to print, and more p371

David Ward reviews Doing Science: Design, Analysis, and Communication of Scientific Research by Ivan Valiela

doi:10.1038/416371a

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Floral fortunes p371

doi:10.1038/416371b

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concepts

Conceptual biology: Unearthing the gems p373

The conceptual review should take its place as an essential component of scientific research.

Mikhail V. Blagosklonny and Arthur B. Pardee

doi:10.1038/416373a

Full Text | PDF (198K)

News and Views

Animal behaviour: Evolution of suicidal signals p375

To deter predators, some organisms have evolved protective mechanisms and warning colorations. Innovative mathematical modelling shows how the first animals with these signals might have managed to survive.

Mike Speed and Graeme D. Ruxton

doi:10.1038/416375a

Full Text | PDF (99K)

Physical chemistry: Sculpting ice out of water p376

Computer simulations are illuminating the molecular processes through which water is transformed into ice — and offering insight into crystallization more generally.

Srikanth Sastry

doi:10.1038/416376a

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Materials science: Repellent behaviour p376

Rosamund Daw

doi:10.1038/416376b

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Neurobiology: Serotonin sustains serenity p377

An elegant variation on conventional gene-knockout techniques can delete a gene at specific times and locations in mice. The approach shows when and where a serotonin receptor protein is needed during development.

Solomon H. Snyder

doi:10.1038/416377a

Full Text | PDF (163K)

100 and 50 years ago p379

doi:10.1038/416379a

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Astrobiology: Seeds of life? p380

Amino acids, a basic constituent of life, can form in dust grains that are similar to those found in the space between stars. But how much does this tell us about the origins of life on Earth?

Everett L. Shock

doi:10.1038/416380a

Full Text | PDF (324K)

Cell biology: The ubiquitin connection p381

The cellular world has some daunting problems for biologists. For example, cells use the ubiquitin molecule in different ways to achieve different effects. These tangled events come under the spotlight in new work.

Howard Riezman

doi:10.1038/416381a

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Daedalus: Learning in middle life p383

David Jones

doi:10.1038/416383a

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Obituary: Sir Raymond Firth (1901–2002) p384

Bradd Shore

doi:10.1038/416384a

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Brief Communications

Classical dynamics: Spinning eggs — a paradox resolved p385

An explanation for an odd egg performance is rolled out in time for Easter.

H. K. Moffatt and Y. Shimomura

doi:10.1038/416385a

First paragraph | Full Text | PDF (72K)

Evolutionary biology: Lamprey Hox genes and the origin of jaws p386

Martin J. Cohn

doi:10.1038/416386a

First paragraph | Full Text | PDF (158K) | Supplementary information

Biomechanics (Communication arising): Prey attack by a large theropod dinosaur p387

T. H. Frazzetta and Kenneth V. Kardong

doi:10.1038/416387a

First paragraph | Full Text | PDF (218K)

Biomechanics (Communication arising): Prey attack by a large theropod dinosaur p388

E. J. Rayfield, D. B. Norman and P. Upchurch

doi:10.1038/416388a

First paragraph | Full Text | PDF (106K)

Review

Ecological responses to recent climate change p389

Gian-Reto Walther, Eric Post, Peter Convey, Annette Menzel, Camille Parmesan, Trevor J. C. Beebee, Jean-Marc Fromentin, Ove Hoegh-Guldberg and Franz Bairlein

doi:10.1038/416389a

Abstract | Full Text | PDF (464K)

Article

Serotonin_1A receptor acts during development to establish normal anxiety-like behaviour in the adult p396

Cornelius Gross, Xiaoxi Zhuang, Kimberly Stark, Sylvie Ramboz, Ronald Oosting, Lynn Kirby, Luca Santarelli, Sheryl Beck and René Hen

doi:10.1038/416396a

Abstract | Full Text | PDF (183K) | Supplementary information

See also: News and Views by Snyder

Letters to Nature

Racemic amino acids from the ultraviolet photolysis of interstellar ice analogues p401

Max P. Bernstein, Jason P. Dworkin, Scott A. Sandford, George W. Cooper and Louis J. Allamandola

doi:10.1038/416401a

First paragraph | Full Text | PDF (147K)

See also: News and Views by Shock

Amino acids from ultraviolet irradiation of interstellar ice analogues p403

G. M. Muñoz Caro, U. J. Meierhenrich, W. A. Schutte, B. Barbier, A. Arcones Segovia, H. Rosenbauer, W. H.-P. Thiemann, A. Brack and J. M. Greenberg

doi:10.1038/416403a

First paragraph | Full Text | PDF (182K)

See also: News and Views by Shock

Exchange-biased quantum tunnelling in a supramolecular dimer of single-molecule magnets p406

Wolfgang Wernsdorfer, Núria Aliaga-Alcalde, David N. Hendrickson and George Christou

doi:10.1038/416406a

First paragraph | Full Text | PDF (793K)

Molecular dynamics simulation of the ice nucleation and growth process leading to water freezing p409

Masakazu Matsumoto, Shinji Saito and Iwao Ohmine

doi:10.1038/416409a

First paragraph | Full Text | PDF (573K)

See also: News and Views by Sastry

Active fluidization of polymer networks through molecular motors p413

D. Humphrey, C. Duggan, D. Saha, D. Smith and J. Käs

doi:10.1038/416413a

First paragraph | Full Text | PDF (261K) | Supplementary information

Mantle wedge control on back-arc crustal accretion p417

Fernando Martinez and Brian Taylor

doi:10.1038/416417a

First paragraph | Full Text | PDF (2,254K) | Supplementary information

Determinants of extinction in the fossil record p420

Shanan E. Peters and Michael Foote

doi:10.1038/416420a

First paragraph | Full Text | PDF (370K) | Supplementary information

Patterns of colonization in a metapopulation of grey seals p424

Oscar E. Gaggiotti, Felicity Jones, William M. Lee, William Amos, John Harwood and Richard A. Nichols

doi:10.1038/416424a

First paragraph | Full Text | PDF (159K) | Supplementary information

Spatial scale dictates the productivity–biodiversity relationship p427

Jonathan M. Chase and Mathew A. Leibold

doi:10.1038/416427a

First paragraph | Full Text | PDF (179K)

Correlated binocular activity guides recovery from monocular deprivation p430

Peter C. Kind, Donald E. Mitchell, Bashir Ahmed, Colin Blakemore, Tobias Bonhoeffer and Frank Sengpiel

doi:10.1038/416430a

First paragraph | Full Text | PDF (602K)

Spike-timing-dependent synaptic modification induced by natural spike trains p433

Robert C. Froemke and Yang Dan

doi:10.1038/416433a

First paragraph | Full Text | PDF (529K)

Rac function and regulation during Drosophila development p438

Satoko Hakeda-Suzuki, Julian Ng, Julia Tzu, Georg Dietzl, Yan Sun, Matthew Harms, Tim Nardine, Liqun Luo and Barry J. Dickson

doi:10.1038/416438a

First paragraph | Full Text | PDF (448K)

Rac GTPases control axon growth, guidance and branching p442

Julian Ng, Timothy Nardine, Matthew Harms, Julia Tzu, Ann Goldstein, Yan Sun, Georg Dietzl, Barry J. Dickson and Liqun Luo

doi:10.1038/416442a

First paragraph | Full Text | PDF (1,242K)

Calmodulin interacts with MLO protein to regulate defence against mildew in barley p447

Min C. Kim, Ralph Panstruga, Candace Elliott, Judith Müller, Alessandra Devoto, Hae W. Yoon, Hyeong C. Park, Moo J. Cho and Paul Schulze-Lefert

doi:10.1038/416447a

First paragraph | Full Text | PDF (258K) | Supplementary information

A single motif responsible for ubiquitin recognition and monoubiquitination in endocytic proteins p451

Simona Polo, Sara Sigismund, Mario Faretta, Monica Guidi, Maria Rosaria Capua, Giovanna Bossi, Hong Chen, Pietro De Camilli and Pier Paolo Di Fiore

doi:10.1038/416451a

First paragraph | Full Text | PDF (604K) | Supplementary information

See also: News and Views by Riezman

Crystal structure of DegP (HtrA) reveals a new protease-chaperone machine p455

Tobias Krojer, Marta Garrido-Franco, Robert Huber, Michael Ehrmann and Tim Clausen

doi:10.1038/416455a

First paragraph | Full Text | PDF (451K) | Supplementary information

New on the Market

Tools of the proteomics trade p460

Proteins handled en masse and individual proteins isolated and identified.

doi:10.1038/416460a

Full Text | PDF (49K)