Opinion

Perils of inadequacies in safety regulation p513

Last week's nuclear accident in Japan is a major blow to the nuclear power industry. But it also reflects broader problems in that country's management of technology.

doi:10.1038/43959

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Moment of truth for the test ban treaty p513

Republican senators will bring credit on their office if they consider the Comprehensive Test Ban Treaty on its technical merits, and vote for its immediate ratification.

doi:10.1038/43961

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News

Terms of access to cloned mice comes under researchers' fire p515

Rex Dalton

doi:10.1038/43963

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UK marine centres face job losses p515

Natasha Loder

doi:10.1038/43967

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Company to use advertising to cover Pubmed Central costs p516

Colin Macilwain

doi:10.1038/43969

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Optical society vote sees off merger p516

Rex Dalton

doi:10.1038/43972

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NASA reworks its sums after Mars fiasco p517

Tony Reichhardt

doi:10.1038/43974

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Virus treatment questioned after gene therapy death p517

Sally Lehrman

doi:10.1038/43977

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Ig prizes spawn a new generation of Nobels p518

Steve Nadis

doi:10.1038/43980

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Bigger stipends attract more UK postgrads into physics p519

Natasha Loder

doi:10.1038/43983

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Test ban treaty faces a rough ride from Senate Republicans p519

Colin Macilwain

doi:10.1038/43986

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Japan joins efforts to patent cDNA clones p520

Asako Saegusa

doi:10.1038/43988

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US provides funding for sequencing rice genome p520

Colin Macilwain

doi:10.1038/43990

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News Analysis

CSIRO faces a 'demand-led' future p521

Australia's main research agency has responded to the prospects of continuing budgetary stringency by redefining its strategic approach.

Peter Pockley

doi:10.1038/43993

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News in brief p522

doi:10.1038/43996

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News

Correction: Cuts force telescope closures at Kitt Peak p523

doi:10.1038/43998

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Correspondence

Cash crisis threatens to close Mexico's leading university p524

Alejandro Cuevas-Sosa

doi:10.1038/44000

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How to bring collections data into the net p524

Kevin Winker

doi:10.1038/44002

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Para-political force in attack on science p524

H. Mohr

doi:10.1038/44004

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Commentary

Beyond 'substantial equivalence' p525

Showing that a genetically modified food is chemically similar to its natural counterpart is not adequate evidence that it is safe for human consumption.

doi:10.1038/44006

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Book Reviews

No ultimate truth in grand unification p527

That Theory of Everything is irrelevant to most physicists.

George Ellis reviews The Quest for Unity: The Adventure of Physics by Etienne Klein and Marc Lachièze-Ray

doi:10.1038/44009

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Heritable traits of a grandfather p528

W. F. Bynum reviews Erasmus Darwin: A Life of Unequalled Achievement by Desmond King-Hele

doi:10.1038/44012

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An economist's use for sand p528

Paul Demeny reviews The Ostrich Factor: Our Population Myopia by Garrett Hardin

doi:10.1038/44014

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Science in culture p530

Henry Gee reviews A year in Pangaea

doi:10.1038/44018

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Millennium Essay

Knowledge élites and class war p531

Would life be better if we left the difficult decisions to experts alone?

Sheila Jasanoff

doi:10.1038/44021

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News and Views

Condensates in a twist p533

Studies of Bose–Einstein condensates continue to provide dramatic displays of quantum-mechanical behaviour. The long-sought goal of creating a quantized vortex in these unusual fluids has now been achieved.

Daniel S. Rokhsar

doi:10.1038/44024

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100 and 50 years ago p534

doi:10.1038/44027

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Cell cycle: Fools rush in p535

Helen Piwnica-Worms

doi:10.1038/44029

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Environmental chemistry: End of the acid reign? p537

Alan Jenkins

doi:10.1038/44032

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Immunology: Wavering on commitment p538

Suzanne Cory

doi:10.1038/44035

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Optics: Liquid versus photonic crystals p539

Eli Yablonovitch

doi:10.1038/44038

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Photosynthesis: Stealing the limelight on the forest floor p541

Peter D. Moore

doi:10.1038/44041

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Cell motility: Bare bones of the cytoskeleton p542

Laura M. Machesky and John A. Cooper

doi:10.1038/44044

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Plant defence: Long view from a high plateau p543

Jeff Dangl

doi:10.1038/44047

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Daedalus: Instant diamond p544

David Jones

doi:10.1038/44050

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Brief Communications

Arsenic poisoning in the Ganges delta p545

The natural contamination of drinking water by arsenic needs to be urgently addressed.

S. K. Acharyya, P. Chakraborty, S. Lahiri, B. C. Raymahashay, Saumyen Guha and Amitava Bhowmik

doi:10.1038/44052

First paragraph | Full Text | PDF (183K)

Arsenic poisoning in the Ganges delta p545

Tarit Roy Chowdhury, Gautam Kumar Basu, Badal Kumar Mandal, Bhajan Kumar Biswas, Gautam Samanta, Uttam Kumar Chowdhury, Chitta Ranjan Chanda, Dilip Lodh, Sagar Lal Roy, Khitish Chandra Saha, Sibtosh Roy, Saiful Kabir, Qazi Quamruzzaman and Dipankar Chakraborti

doi:10.1038/44056

First paragraph | Full Text | PDF (183K)

Reply: Arsenic poisoning in the Ganges delta p546

J. M. McArthur

doi:10.1038/44060

First paragraph | Full Text | PDF (179K)

Cell division: A histone-H3-like protein in C. elegans p547

Brian J. Buchwitz, Kami Ahmad, Landon L. Moore, Mark B. Roth and Steven Henikoff

doi:10.1038/44062

First paragraph | Full Text | PDF (211K)

Materials: A class of porous metallic nanostructures p548

O. D. Velev, P. M. Tessier, A. M. Lenhoff and E. W. Kaler

doi:10.1038/44065

First paragraph | Full Text | PDF (162K)

Articles

Multi-gas assessment of the Kyoto Protocol p549

J. Reilly, R. Prinn, J. Harnisch, J. Fitzmaurice, H. Jacoby, D. Kicklighter, J. Melillo, P. Stone, A. Sokolov and C. Wang

doi:10.1038/44069

Abstract | Full Text | PDF (209K)

Commitment to the B-lymphoid lineage depends on the transcription factor Pax5 p556

Stephen L. Nutt, Barry Heavey, Antonius G. Rolink and Meinrad Busslinger

doi:10.1038/44076

Abstract | Full Text | PDF (462K)

See also: News and Views by Cory

Letters to Nature

Low-temperature crystallization of silicate dust in circumstellar disks p563

F. J. Molster, I. Yamamura, L. B. F. M. Waters, A. G. G. M. Tielens, Th. de Graauw, T. de Jong, A. de Koter, K. Malfait, M. E. van den Ancker, H. van Winckel, R. H. M. Voors and C. Waelkens

doi:10.1038/44085

First paragraph | Full Text | PDF (189K)

Discovery of a moon orbiting the asteroid 45 Eugenia p565

W. J. Merline, L. M. Close, C. Dumas, C. R. Chapman, F. Roddier, F. Ménard, D. C. Slater, G. Duvert, C. Shelton and T. Morgan

doi:10.1038/44089

First paragraph | Full Text | PDF (181K)

Preparing topological states of a Bose–Einstein condensate p568

J. E. Williams and M. J. Holland

doi:10.1038/44095

First paragraph | Full Text | PDF (365K)

See also: News and Views by Rokhsar

Coherent transport of electron spin in a ferromagnetically contacted carbon nanotube p572

Kazuhito Tsukagoshi, Bruce W. Alphenaar and Hiroki Ago

doi:10.1038/44108

First paragraph | Full Text | PDF (329K)

Regional trends in aquatic recovery from acidification in North America and Europe p575

J. L. Stoddard, D. S. Jeffries, A. Lükewille, T. A. Clair, P. J. Dillon, C. T. Driscoll, M. Forsius, M. Johannessen, J. S. Kahl, J. H. Kellogg, A. Kemp, J. Mannio, D. T. Monteith, P. S. Murdoch, S. Patrick, A. Rebsdorf, B. L. Skjelkvåle, M. P. Stainton, T. Traaen, H. van Dam, K. E. Webster, J. Wieting and A. Wilander

doi:10.1038/44114

First paragraph | Full Text | PDF (473K)

See also: News and Views by Jenkins

Sterilization and canopy modification of a swollen thorn acacia tree by a plant-ant p578

Maureen L. Stanton, Todd M. Palmer, Truman P. Young, Amanda Evans and Monica L. Turner

doi:10.1038/44119

First paragraph | Full Text | PDF (415K)

Diet-dependent female choice for males with 'good genes' in a soil predatory mite p581

Izabela Lesna and Maurice W. Sabelis

doi:10.1038/44125

First paragraph | Full Text | PDF (153K)

fMRI evidence for objects as the units of attentional selection p584

Kathleen M. O'Craven, Paul E. Downing and Nancy Kanwisher

doi:10.1038/44134

First paragraph | Full Text | PDF (168K) | Supplementary information

Involvement of visual cortex in tactile discrimination of orientation p587

Andro Zangaladze, Charles M. Epstein, Scott T. Grafton and K. Sathian

doi:10.1038/44139

First paragraph | Full Text | PDF (183K)

Primate spinal interneurons show pre-movement instructed delay activity p590

Yifat Prut and Eberhard E. Fetz

doi:10.1038/44145

First paragraph | Full Text | PDF (1,662K)

Polyamine-dependent facilitation of postsynaptic AMPA receptors counteracts paired-pulse depression p594

Andrei Rozov and Nail Burnashev

doi:10.1038/44151

First paragraph | Full Text | PDF (872K)

Signal relay by BMP antagonism controls the SHH/FGF4 feedback loop in vertebrate limb buds p598

Aimée Zúñiga, Anna-Pavlina G. Haramis, Andrew P. McMahon and Rolf Zeller

doi:10.1038/44157

First paragraph | Full Text | PDF (259K)

Long-term in vivo reconstitution of T-cell development by Pax5-deficient B-cell progenitors p603

Antonius G. Rolink, Stephen L. Nutt, Fritz Melchers and Meinrad Busslinger

doi:10.1038/44164

First paragraph | Full Text | PDF (314K)

See also: News and Views by Cory

Dimerization inhibits the activity of receptor-like protein-tyrosine phosphatase- p606

Guoqiang Jiang, Jeroen den Hertog, Jing Su, Joseph Noel, Jan Sap and Tony Hunter

doi:10.1038/44170

First paragraph | Full Text | PDF (302K)

Phytochrome signalling is mediated through nucleoside diphosphate kinase 2 p610

Giltsu Choi, Hankuil Yi, Jaeho Lee, Yong-Kook Kwon, Moon Soo Soh, Byongchul Shin, Zigmund Luka, Tae-Ryong Hahn and Pill-Soon Song

doi:10.1038/44176

First paragraph | Full Text | PDF (245K)

Reconstitution of actin-based motility of Listeria and Shigella using pure proteins p613

Thomas P. Loisel, Rajaa Boujemaa, Dominique Pantaloni and Marie-France Carlier

doi:10.1038/44183

First paragraph | Full Text | PDF (233K)

See also: News and Views by Machesky & Cooper

14-3-3 is required to prevent mitotic catastrophe after DNA damage p616

Timothy A. Chan, Heiko Hermeking, Christoph Lengauer, Kenneth W. Kinzler and Bert Vogelstein

doi:10.1038/44188

First paragraph | Full Text | PDF (313K)

See also: News and Views by Piwnica-Worms

New on the Market

Better safe than otherwise p621

Safety first, second and twelfth in the gleanings from recent new products.

doi:10.1038/44195

Full Text | PDF (199K)