Opinion

Poverty and transgenic crops p569

Africa's rejection of genetically modified food aid reflects a chasm of misunderstanding that is only exacerbated by exaggerated claims for the benefits of the technology.

doi:10.1038/418569a

Full Text | PDF (37K)

Integrity from the top down p569

Research universities and other institutions are responsible for creating an environment that fosters scientific integrity.

doi:10.1038/418569b

Full Text | PDF (37K)

News

Africa hungry for conventional food as biotech row drags on p571

Natasha McDowell

doi:10.1038/418571a

Full Text | PDF (151K)

US calls for early data on transgenic crop safety p571

Erika Check

doi:10.1038/418571b

Full Text | PDF (151K)

Future of the NIH may lie in restructuring, committee told p572

Erika Check

doi:10.1038/418572a

Full Text | PDF (86K)

Big projects cited as threat to NSF's integrity p573

Geoff Brumfiel

doi:10.1038/418573a

Full Text | PDF (97K)

Test-ban treaty 'scientifically sound' p573

Geoff Brumfiel

doi:10.1038/418573b

Full Text | PDF (97K)

Ink analysis raises storm over Viking map p574

John Whitfield & Rex Dalton

doi:10.1038/418574a

Full Text | PDF (96K)

Swiss scientists fear for top ranking in basic research p574

Oliver Schmidt

doi:10.1038/418574b

Full Text | PDF (96K)

news in brief p576

doi:10.1038/418576a

Full Text | PDF (62K)

news feature

Evolutionary developmental biology: It's the ecology, stupid! p578

Can studies of environmental influences on developing organisms provide the key to understanding the evolution of species and populations? A growing number of researchers think so. Jennie Dusheck reports.

Jennie Dusheck

doi:10.1038/418578a

Full Text | PDF (261K)

Computer security: Who's been looking at your data? p580

You thought that all those e-mails, data and grant proposals on your computer were for your eyes only? Think again, says Declan Butler. Someone could be snooping on your every keystroke.

Declan Butler

doi:10.1038/418580a

Full Text | PDF (409K)

Correspondence

Classic detective puts his finger on the clue p583

A fictional gumshoe was first to pick up the intriguing criminal potential of 'gummy fingers'.

David Ehrenfeld

doi:10.1038/418583a

Full Text | PDF (35K)

Microcredit tackles both poverty and birthrate p583

Michael E. McIntyre

doi:10.1038/418583b

Full Text | PDF (35K)

Israeli terms are used for consistency, not politics p583

Amnon Freidberg & Ilan Yarom

doi:10.1038/418583c

Full Text | PDF (35K)

Bioethics: centres reveal sponsors but not policy p583

Virginia Ashby Sharpe

doi:10.1038/418583d

Full Text | PDF (35K)

Commentary

DNA testing for all p585

There are two fair possibilities for forensic DNA testing: everyone or no one.

doi:10.1038/418585a

Full Text | PDF (148K)

Book Reviews

Putting Egypt back on the map p587

Ahmed Zewail's autobiography looks at the future of science in his homeland.

A.B. Zahlan reviews Voyage Through Time: Walks in Life to the Nobel Prize by Ahmed Zewail

doi:10.1038/418587a

Full Text | PDF (239K)

Quantifying bird diversity p588

Arie J. van Noordwijk reviews Evolutionary Ecology of Birds: Life Histories, Mating Systems and Extinction by Peter M. Bennett & Ian P. F. Owens

doi:10.1038/418588a

Full Text | PDF (263K)

Thinking laterally about genes p589

W. Ford Doolittle reviews Lateral DNA Transfer: Mechanisms and Consequences by Frederic Bushman

doi:10.1038/418589a

Full Text | PDF (192K)

A monumental study p589

doi:10.1038/418589b

Full Text | PDF (192K)

Science in culture p590

Martin Kemp reviews

doi:10.1038/418590a

Full Text | PDF (98K)

concepts

Desensitization: Diminishing returns p591

Any external stimulus triggering a response inside the cell also triggers a process inhibiting the response to further exposure to the same stimulus.

Henrik G. Dohlman

doi:10.1038/418591a

Full Text | PDF (54K)

News and Views

Carbon cycle: Uncertain sinks in the shrubs p593

Replacement of grassland by shrubland, which is occurring on a large scale in the United States, is thought to lock up considerable amounts of carbon. This 'carbon sink' may be much smaller than previously estimated.

Christine L. Goodale & Eric A. Davidson

doi:10.1038/418593a

Full Text | PDF (131K)

HIV: A tough viral nut to crack p594

HIV cannot multiply in certain human cells unless it expresses a protein called Vif, the function of which has finally been revealed. It seems that it overcomes a human protein that would otherwise block viral replication.

Roger J. Pomerantz

doi:10.1038/418594a

Full Text | PDF (98K)

Obesity: Keeping hunger at bay p595

Many different hormones control our weight and appetite. The discovery of another hormone, which suppresses appetite for up to 12 hours, may lead to a better understanding of this complex control system.

Michael W. Schwartz & Gregory J. Morton

doi:10.1038/418595a

Full Text | PDF (156K)

Semiconductor physics: One at a time, please p597

Semiconductor quantum dots could become the basis of the much-talked-about quantum computer. A single-electron 'turnstile' device is a promising way to read out the information being processed.

Manfred Bayer

doi:10.1038/418597a

Full Text | PDF (88K)

100 and 50 years ago p598

doi:10.1038/418598a

Full Text | PDF (122K)

Structural biology: Calcium callisthenics p598

The Ca²⁺-ATPase is one of the best characterized of the pumps that move ions across cell membranes. The latest snapshot of the pump in another of its many conformations is a major step in understanding its dynamics.

N. Michael Green & David H. MacLennan

doi:10.1038/418598b

Full Text | PDF (122K)

Obituary: W. Maxwell Cowan (1931–2002) p600

David C. Van Essen & Joseph L. Price

doi:10.1038/418600a

Full Text | PDF (54K)

Brief Communications

Climatology: Contrails reduce daily temperature range p601

A brief interval when the skies were clear of jets unmasked an effect on climate.

David J. Travis, Andrew M. Carleton & Ryan G. Lauritsen

doi:10.1038/418601a

First paragraph | Full Text | PDF (118K)

Animal behaviour: Male parenting of New Guinea froglets p601

David Bickford

doi:10.1038/418601b

First paragraph | Full Text | PDF (118K)

Cosmology: Black holes constrain varying constants p602

P. C. W. Davies, Tamara M. Davis & Charles H. Lineweaver

doi:10.1038/418602a

First paragraph | Full Text | PDF (117K)

Kinematics: Gliding flight in the paradise tree snake p603

John J. Socha

doi:10.1038/418603a

First paragraph | Full Text | PDF (71K)

Nitrogen cycle (Communication arising): What governs nitrogen loss from forest soils? p604

Tom Addiscott & Phil Brookes

doi:10.1038/418604a

First paragraph | Full Text | PDF (39K)

Nitrogen cycle (Communication arising): What governs nitrogen loss from forest soils? p604

Nico van Breemen

doi:10.1038/418604b

First paragraph | Full Text | PDF (39K)

Article

Structural changes in the calcium pump accompanying the dissociation of calcium p605

Chikashi Toyoshima & Hiromi Nomura

doi:10.1038/nature00944

Abstract | Full Text | PDF (629K) | Supplementary information

See also: News and Views by Green & MacLennan

Letters to Nature

Coherent properties of a two-level system based on a quantum-dot photodiode p612

A. Zrenner, E. Beham, S. Stufler, F. Findeis, M. Bichler & G. Abstreiter

doi:10.1038/nature00912

First paragraph | Full Text | PDF (185K)

See also: News and Views by Bayer

Evidence for spin–charge separation in quasi-one-dimensional organic conductors p614

T. Lorenz, M. Hofmann, M. Grüninger, A. Freimuth, G. S. Uhrig, M. Dumm & M. Dressel

doi:10.1038/nature00913

First paragraph | Full Text | PDF (589K)

Sub-ångstrom resolution using aberration corrected electron optics p617

P. E. Batson, N. Dellby & O. L. Krivanek

doi:10.1038/nature00972

First paragraph | Full Text | PDF (690K)

Experimental evidence for sub-3-fs charge transfer from an aromatic adsorbate to a semiconductor p620

Joachim Schnadt, Paul A. Brühwiler, Luc Patthey, James N. O'Shea, Sven Södergren, Michael Odelius, Rajeev Ahuja, Olof Karis, Margit Bässler, Petter Persson, Hans Siegbahn, S. Lunell & Nils Mårtensson

doi:10.1038/nature00952

First paragraph | Full Text | PDF (272K) | Supplementary information

Ecosystem carbon loss with woody plant invasion of grasslands p623

Robert B. Jackson, Jay L. Banner, Esteban G. Jobbágy, William T. Pockman & Diana H. Wall

doi:10.1038/nature00910

First paragraph | Full Text | PDF (235K) | Supplementary information

See also: News and Views by Goodale & Davidson

Reassessing the evidence for the earliest traces of life p627

Mark A. van Zuilen, Aivo Lepland & Gustaf Arrhenius

doi:10.1038/nature00934

First paragraph | Full Text | PDF (324K)

Cultivation of the ubiquitous SAR11 marine bacterioplankton clade p630

Michael S. Rappé, Stephanie A. Connon, Kevin L. Vergin & Stephen J. Giovannoni

doi:10.1038/nature00917

First paragraph | Full Text | PDF (281K)

An unexpected specialization for horizontal disparity in primate primary visual cortex p633

B. G. Cumming

doi:10.1038/nature00909

First paragraph | Full Text | PDF (300K)

Wnt-11 activation of a non-canonical Wnt signalling pathway is required for cardiogenesis p636

Petra Pandur, Matthias Läsche, Leonard M. Eisenberg & Michael Kühl

doi:10.1038/nature00921

First paragraph | Full Text | PDF (485K) | Supplementary information

A component of the ARC/Mediator complex required for TGF/Nodal signalling p641

Yoichi Kato, Raymond Habas, Yu Katsuyama, Anders M. Näär & Xi He

doi:10.1038/nature00969

First paragraph | Full Text | PDF (600K) | Supplementary information

Isolation of a human gene that inhibits HIV-1 infection and is suppressed by the viral Vif protein p646

Ann M. Sheehy, Nathan C. Gaddis, Jonathan D. Choi & Michael H. Malim

doi:10.1038/nature00939

First paragraph | Full Text | PDF (336K) | Supplementary information

See also: News and Views by Pomerantz

Gut hormone PYY_3-36 physiologically inhibits food intake p650

Rachel L. Batterham, Michael A. Cowley, Caroline J. Small, Herbert Herzog, Mark A. Cohen, Catherine L. Dakin, Alison M. Wren, Audrey E. Brynes, Malcolm J. Low, Mohammad A. Ghatei, Roger D. Cone & Stephen R. Bloom

doi:10.1038/nature00887

First paragraph | Full Text | PDF (741K) | Supplementary information

See also: News and Views by Schwartz & Morton

A naturally occurring MTA1 variant sequesters oestrogen receptor- in the cytoplasm p654

Rakesh Kumar, Rui-An Wang, Abhijit Mazumdar, Amjad H. Talukder, Mahitosh Mandal, Zhibo Yang, Rozita Bagheri-Yarmand, Aysegul Sahin, Gabriel Hortobagyi, Liana Adam, Christopher J. Barnes & Ratna K. Vadlamudi

doi:10.1038/nature00889

First paragraph | Full Text | PDF (450K) | Supplementary information

Biomimetic synthesis and optimization of cyclic peptide antibiotics p658

Rahul M. Kohli, Christopher T. Walsh & Michael D. Burkart

doi:10.1038/nature00907

First paragraph | Full Text | PDF (333K)

Three-dimensional structure of the bacterial protein-translocation complex SecYEG p662

Cécile Breyton, Winfried Haase, Tom A. Rapoport, Werner Kühlbrandt & Ian Collinson

doi:10.1038/nature00827

First paragraph | Full Text | PDF (403K) | Supplementary information

addendum: Nitrogen loss from unpolluted South American forests mainly via dissolved organic compounds p665

Steven S. Perakis & Lars O. Hedin

Full Text | PDF (59K)

corrigendum: Extensive and divergent circadian gene expression in liver and heart p665

Kai-Florian Storch, Ovidiu Lipan, Igor Leykin, N. Viswanathan, Fred C. Davis, Wing H. Wong & Charles J. Weitz

doi:10.1038/nature00960

Full Text | PDF (59K)

New on the Market

Recent introductions p666

Wipe that DNA right out of your plastic and glassware containers.

doi:10.1038/418666a

Full Text | PDF (70K)

insight

Food & the future p667

Henry Gee

doi:10.1038/418667a

Full Text | PDF (175K)

Malthus foiled again and again p668

Antony Trewavas

doi:10.1038/nature01013

Abstract | Full Text | PDF (210K)

Agricultural sustainability and intensive production practices p671

David Tilman, Kenneth G. Cassman, Pamela A. Matson, Rosamond Naylor & Stephen Polasky

doi:10.1038/nature01014

Abstract | Full Text | PDF (222K)

Enhancing the crops to feed the poor p678

Jikun Huang, Carl Pray & Scott Rozelle

doi:10.1038/nature01015

Abstract | Full Text | PDF (205K)

Assessing the risks associated with new agricultural practices p685

R. S. Hails

doi:10.1038/nature01016

Abstract | Full Text | PDF (477K)

Towards sustainability in world fisheries p689

Daniel Pauly, Villy Christensen, Sylvie Guénette, Tony J. Pitcher, U. Rashid Sumaila, Carl J. Walters, R. Watson & Dirk Zeller

doi:10.1038/nature01017

Abstract | Full Text | PDF (244K)

The present and future of the international wine industry p696

Linda F. Bisson, Andrew L. Waterhouse, Susan E. Ebeler, M. Andrew Walker & James T. Lapsley

doi:10.1038/nature01018

Abstract | Full Text | PDF (206K)

Evolution, consequences and future of plant and animal domestication p700

Jared Diamond

doi:10.1038/nature01019

Abstract | Full Text | PDF (528K)

Naturejobs

Lessons in career planning p3

Paul Smaglik

doi:10.1038/nj6898-03a

Full Text | PDF (68K)

The Pacific Rim p4

Pacific Rim countries are vying to recruit scientists, but they face some stiff obstacles, says Robert Triendl.

Robert Triendl

doi:10.1038/nj6898-04a

Full Text | PDF (351K)