Opinion

Urgent thinking required about development p527

A report from the World Bank has highlighted the dangers of a growing knowledge gap between rich and poor nations. The issue needs to be placed at the heart of development aid strategies.

doi:10.1038/26797

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News

World Bank calls for a fairer deal on patents and knowledge p529

Declan Butler

doi:10.1038/26799

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Magnetar blasts its way out of theory p529

Tony Reichhardt

doi:10.1038/26802

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Recession hits plans for science growth in New Zealand p530

Peter Pockley

doi:10.1038/26805

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Intel co-founder funds new centre for biodiversity... p530

Tony Reichhardt

doi:10.1038/26807

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...and gives Cambridge a science library p530

Tony Reichhardt

doi:10.1038/26809

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Congress smiles on research budgets p531

Colin Macilwain and Tony Reichhardt

doi:10.1038/26812

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Brussels rejects 'grace period' on patents p531

Declan Butler and David Dickson

doi:10.1038/26815

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German scientists may escape fraud trial p532

Alison Abbott

doi:10.1038/26817

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Pressure grows for relaxation of French embryo research laws p532

Declan Butler

doi:10.1038/27017

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Task force set up to determine the damage p533

Alison Abbott

doi:10.1038/26822

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Shake-up on the way for Swiss research p534

Quirin Schiermeier

doi:10.1038/26824

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Canada's blood agency up and running p534

David Spurgeon

doi:10.1038/26827

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Big increase in Spanish research funding p535

Xavier Bosch

doi:10.1038/26829

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French scientist shrugs off winning his second Ig Nobel prize p535

Steve Nadis

doi:10.1038/26831

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News in Brief p536

doi:10.1038/26834

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Correspondence

Long-lived, but not 'aged' p538

Eric Le Bourg and Nadège Minois

doi:10.1038/26836

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What's in a name (or a number or a date)? p538

Nicholas C. Price

doi:10.1038/26838

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Each to his own p538

Thomas J. Crowley

doi:10.1038/26840

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News and Views

The fate of the Neanderthals p539

Paul Mellars

doi:10.1038/26842

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Planetary science:  Titan weather report p541

F. Michael Flasar

doi:10.1038/26847

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Molecular endocrinology:  Two orphans find a home p543

Didier Picard

doi:10.1038/26850

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100 and 50 years ago p544

doi:10.1038/26853

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Photochemistry:  Solid-state organic solar cells p544

Wim C. Sinke and Martijn M. Wienk

doi:10.1038/26855

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Floral patterning:  A LEAFY link from outer space p545

Ben Scheres

doi:10.1038/26858

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Animal evolution:  From deep time to late arrivals p547

Martin Brasier

doi:10.1038/26861

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RNA structure:  Ribozyme crevices and catalysis p548

Daniel Herschlag

doi:10.1038/26864

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Lunar exploration:  Water amongst the rock p549

Timothy D. Swindle

doi:10.1038/26866

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Daedalus:  Worlds apart p550

David Jones

doi:10.1038/26869

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Science and Image

Icons of intellect p551

Herschel the star-gazer with light around his head, Einstein's wild hair and vast brain, Hawking's interstellar mind transcending his earthbound body. It's not just that we've seen them so often: some scientists really look the part.

Martin Kemp

doi:10.1038/26871

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Scientific Correspondence

Harvesting a crop of gold in plants p553

Christopher W. N. Anderson, Robert R. Brooks, Robert B. Stewart and Robyn Simcock

doi:10.1038/26875

First paragraph | Full Text | PDF (193K)

Salinity history of the Earth's early ocean p554

L. Paul Knauth

doi:10.1038/26879

First paragraph | Full Text | PDF (274K)

Receptor that leaves a sour taste in the mouth p555

Shinya Ugawa, Yuki Minami, Wei Guo, Yoshitsugu Saishin, Koichi Takatsuji, Takashi Yamamoto, Masaya Tohyama and Shoichi Shimada

doi:10.1038/26882

First paragraph | Full Text | PDF (305K)

Over-water dispersal of lizards due to hurricanes p556

Ellen J. Censky, Karim Hodge and Judy Dudley

doi:10.1038/26886

First paragraph | Full Text | PDF (361K)

Book Reviews

Calls for a ceasefire in the science wars p557

John Henry reviews Making Natural Knowledge: Constructivism and the History of Science by Jan Golinski

doi:10.1038/26889

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From fins to limbs and back again p558

Michael S. Y. Lee reviews At the Water's Edge: Macroevolution and the Transformation of Life by Carl Zimmer

doi:10.1038/26892

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Now you see them, now you don't p558

doi:10.1038/26895

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Winning by a whisker p559

James D. Meindl reviews Electronic Genie: The Tangled History of Silicon by Frederick Seitz and Norman Einspruch

doi:10.1038/26898

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The mother of all questions p560

Stefan Bengtson reviews The Fifth Miracle: The Search for the Origin of Life by Paul Davies

doi:10.1038/26900

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Articles

A genetic framework for floral patterning p561

François Parcy, Ove Nilsson, Maximilian A. Busch, Ilha Lee and Detlef Weigel

doi:10.1038/26903

Abstract | Full Text | PDF (511K)

See also: News and Views by Scheres

Crystal structure of a hepatitis delta virus ribozyme p567

Adrian R. Ferré-D'Amaré, Kaihong Zhou and Jennifer A. Doudna

doi:10.1038/26912

Abstract | Full Text | PDF (680K)

See also: News and Views by Herschlag

Letters to Nature

Transient clouds in Titan's lower atmosphere p575

Caitlin A. Griffith, Tobias Owen, Gary A Miller and Thomas Geballe

doi:10.1038/26920

First paragraph | Full Text | PDF (327K)

See also: News and Views by Flasar

Mesoscopic behaviour of the neutral Fermi gas ³He confined in quantum wires p578

S. L. Phillipson, A. M. Guénault, S. N. Fisher, G. R. Pickett and P. J. Y. Thibault

doi:10.1038/26927

First paragraph | Full Text | PDF (315K)

Spin fluctuations in YBa₂Cu₃O_6.6 p580

H. A. Mook, Pengcheng Dai, S. M. Hayden, G. Aeppli, T. G. Perring and F. Doan

doi:10.1038/26931

First paragraph | Full Text | PDF (519K)

Solid-state dye-sensitized mesoporous TiO₂ solar cells with high photon-to-electron conversion efficiencies p583

U. Bach, D. Lupo, P. Comte, J. E. Moser, F. Weissörtel, J. Salbeck, H. Spreitzer and M. Grätzel

doi:10.1038/26936

First paragraph | Full Text | PDF (290K)

See also: News and Views by Sinke & Wienk

Accumulation of persistent organochlorine compounds in mountains of western Canada p585

Jules M. Blais, David W. Schindler, Derek C. G. Muir, Lynda E. Kimpe, David B. Donald and Bruno Rosenberg

doi:10.1038/26944

First paragraph | Full Text | PDF (293K)

The influence of natural mineral coatings on feldspar weathering p588

M. A. Nugent, S. L. Brantley, C. G. Pantano and P. A. Maurice

doi:10.1038/26951

First paragraph | Full Text | PDF (440K)

Evidence from the rare-earth-element record of mantle melting for cooling of the Tertiary Iceland plume p591

C. Tegner, C. E. Lesher, L. M. Larsen and W. S. Watt

doi:10.1038/26956

First paragraph | Full Text | PDF (544K) | Supplementary information

Apostatic selection by blue jays produces balanced polymorphism in virtual prey p594

Alan B. Bond and Alan C. Kamil

doi:10.1038/26961

First paragraph | Full Text | PDF (326K)

Imaging unconscious semantic priming p597

Stanislas Dehaene, Lionel Naccache, Gurvan Le Clec'H, Etienne Koechlin, Michael Mueller, Ghislaine Dehaene-Lambertz, Pierre-FranÇois van de Moortele and Denis Le Bihan

doi:10.1038/26967

First paragraph | Full Text | PDF (373K)

Local control of information flow in segmental and ascending collaterals of single afferents p600

J. Lomelí, J. Quevedo, P. Linares and P. Rudomin

doi:10.1038/26975

First paragraph | Full Text | PDF (424K)

Drosophila Tcf and Groucho interact to repress Wingless signalling activity p604

Robert A. Cavallo, Rachel T. Cox, Melissa M. Moline, Jeroen Roose, Gordon A. Polevoy, Hans Clevers, Mark Peifer and Amy Bejsovec

doi:10.1038/26982

First paragraph | Full Text | PDF (619K)

The Xenopus Wnt effector XTcf-3 interacts with Groucho-related transcriptional repressors p608

Jeroen Roose, Miranda Molenaar, Josi Peterson, Jolanda Hurenkamp, Helen Brantjes, Petra Moerer, Marc van de Wetering, Olivier Destrée and Hans Clevers

doi:10.1038/26989

First paragraph | Full Text | PDF (385K)

Androstane metabolites bind to and deactivate the nuclear receptor CAR- p612

Barry M. Forman, Iphigenia Tzameli, Hueng-Sik Choi, Jasmine Chen, Devendranath Simha, Wongi Seol, Ronald M. Evans and David D. Moore

doi:10.1038/26996

First paragraph | Full Text | PDF (329K)

See also: News and Views by Picard

A Mec1- and Rad53-dependent checkpoint controls late-firing origins of DNA replication p615

Corrado Santocanale and John F. X. Diffley

doi:10.1038/27001

First paragraph | Full Text | PDF (431K) | Supplementary information

Regulation of DNA-replication origins during cell-cycle progression p618

Katsuhiko Shirahige, Yuji Hori, Katsuya Shiraishi, Minoru Yamashita, Keiko Takahashi, Chikashi Obuse, Toshiki Tsurimoto and Hiroshi Yoshikawa

doi:10.1038/27007

First paragraph | Full Text | PDF (401K)

erratum:  Optical alignment and spinning of laser-trapped microscopic particles p621

M. E. J. Friese, T. A. Nieminen, N. R. Heckenberg and H. Rubinsztein-Dunlop

doi:10.1038/27014

Full Text | PDF (533K)