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Volume 421 Issue 6918, 2 January 2003

Opinion

  • This year sees Nature getting up close and personal with researchers, thanks to a new series and a territorial expansion. Another important innovation is a policy that allows authors to retain copyright.

    Opinion

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  • China must do more to protect the integrity of its policies that encourage greater participation by Chinese researchers overseas.

    Opinion
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News

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News in Brief

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News Feature

  • Forest mammals are food for people across Asia, Africa and South America. But with many species disappearing fast, can hunting be made sustainable? John Whitfield talks to the ecologists trying to balance supply and demand.

    • John Whitfield
    News Feature
  • Seismic studies of the deep roots of Hawaii's volcanoes may help to reveal mysterious circulation processes in the Earth's mantle — shedding light on our planet's history and dynamics. Rex Dalton peers beneath the surface.

    • Rex Dalton
    News Feature
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Correspondence

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Commentary

  • Honours go to the first powered flight and the DNA double helix.

    • J. L. Heilbron
    • W. F. Bynum
    Commentary
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Book Review

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Lifeline

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Concepts

  • Do knots give extra stability to protein folds or are they just 'harmless' tangles that have arisen accidentally?

    • William R. Taylor
    • Kuang Lin
    Concepts
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News & Views

  • When experimentally displaced in geomagnetic space, spiny lobsters act as if to make their way home. This is a fascinating case of navigation by an invertebrate using a magnetic map sense.

    • Thomas Alerstam
    News & Views
  • Will quantum information theory ever lead to practical quantum information technologies? At a conference reviewing the advances of the past two years, delegates looked to the future with cautious optimism.

    • Jonathan Jones
    News & Views
  • We, and other animals, can generally pinpoint the source of a sound in space regardless of how loud it is. A study involving experimentation and computer modelling reveals how our brains perform this clever task.

    • Charles F. Stevens
    News & Views
  • It has been known for some years that Jupiter's satellite Io has sodium as a component of its atmosphere. The source, it now seems, is sodium chloride emitted by volcanoes on Io's surface.

    • Donald M. Hunten
    News & Views
  • Duplicated genes are common in genomes, perhaps because they provide redundancy: if one copy is inactivated, the other can still work. A new study quantifies the effects of deleting 'singletons' and duplicated genes in yeast.

    • Axel Meyer
    News & Views
  • Single-molecule magnets can change their spin states through quantum tunnelling. A more complete picture of the interactions occurring in a system of such magnets must include two-body transitions.

    • Bernard Barbara
    News & Views
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Brief Communication

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Article

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Letter

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Corrigendum

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Prospects

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