Understanding the trade-offs involved for plants making leaves promises fresh insights on every scale from the plant to the planet, finds John Whitfield
doi:10.1038/444539a
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The earth-eaters p543
Research suggests that consuming soil may have more health implications than one might expect. Trevor Stokes sieves through the reasons why people include dirt in their diet.
doi:10.1038/444543a
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Top of pageCorrespondence
Islam: governments need to reform education and build a scientific culture p545
Hilal A. Lashuel and Nasser Zawia
doi:10.1038/444545a
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Islam: science is held back by paternalistic traditions p545
Tasleem Akhtar
doi:10.1038/444545b
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Top of pageBooks and Arts
The Hungarian martians p547
Five of Budapest's finest changed the world in the twentieth century.
Arthur I. Miller reviews The Martians of Science by István Hargittai
doi:10.1038/444547a
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Women or just good scientists? p548
Patricia Fara reviews Out of the Shadows: Contributions of Twentieth-Century Women to Physics
doi:10.1038/444548a
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Understanding cancer p549
Chris Boshoff reviews The Biology of Cancer by Robert A. Weinberg
doi:10.1038/444549a
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Detecting hidden objects p549
Manfred Fahle reviews Seeing Spatial Form by Michael R. M. Jenkin and Laurence R. Harris
doi:10.1038/444549b
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Science in culture p550
Reaching for the stars
Martin Kemp
doi:10.1038/444550a
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Top of pageNews and Views
Archaeology: High tech from Ancient Greece p551
The Antikythera Mechanism, salvaged 100 years ago from an ancient shipwreck, was long known to be some sort of mechanical calendar. But modern analysis is only now revealing just how sophisticated it was.
François Charette
doi:10.1038/444551a
Full Text | PDF (244K)
See also: Editor's summary
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Stem-cell biology: A move in the right direction p552
Stem-cell therapy is valued for its potential to restore damaged or degenerating tissues. Stem cells are now regularly used to renew blood, and it looks as if the next success could be in treating dystrophic muscle.
Jeffrey S. Chamberlain
doi:10.1038/nature05406
Full Text | PDF (295K)
See also: Editor's summary
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Chemical biology: A broader take on DNA p553
Slipping in extra benzene rings creates a broader DNA double helix that is similar to, but different from, natural DNA. Importantly, it can encode more genetic information — and that could have wide implications.
Aaron M. Leconte and Floyd E. Romesberg
doi:10.1038/444553a
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Conservation biology: Rarity bites p555
Rare species have to cope not only with habitat loss, genetic bottlenecks and invasive competitors, but also with a self-reinforcing cycle of human greed. This last threat has now been dragged into the spotlight.
Barry W. Brook, B W and Navjot S. Sodhi, N S
doi:10.1038/444555a
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50 & 100 Years Ago p556
doi:10.1038/444556a
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Organic Chemistry: Molecules in quarantine p557
Intermediate compounds are often produced during a chemical reaction, but they are too short-lived to be easily observed. It seems that a molecular pyramid can persuade them to stick around for a little longer.
Julius Rebek, Jr
doi:10.1038/444557a
Full Text | PDF (146K)
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