| | Opinion |  |
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| | Are fast reactors gone for good? 571
Japanese and French ambitions apart, the fast reactor business is in the doldrums. But it would be a mistake to suppose that it will never have a future.
doi:10.1038/368571a0
PDF (253K)
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| | Patents for eugenics 572
Eugenics is both unpopular and widely practised; will it never contribute to the human condition?
doi:10.1038/368572a0
PDF (145K)
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| | News | |
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| | Hubble upgrade review stirs concern over impact of NASA budget cuts 573
Colin Macilwain
doi:10.1038/368573a0
PDF (136K)
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| | Ocean experiment is put on hold 573
Joel Shurkin
doi:10.1038/368573b0
PDF (136K)
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| | Genetically altered tomato set to get the green light 574
Diane Gershon & Sally Lehrman
doi:10.1038/368574a0
PDF (154K)
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| | Columbia aims to raise $100m a year from new ventures 574
Tony Reichhardt
doi:10.1038/368574b0
PDF (154K)
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| | Japan's fast reactor heads for the slow track 575
David Swinbanks
doi:10.1038/368575a0
PDF (173K)
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| | French lab drops US deal over access to DNA bank 575
Declan Butler
doi:10.1038/368575b0
PDF (173K)
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| | Palace coup may lift status of Biosphere 2 576
Colin Macilwain
doi:10.1038/368576a0
PDF (142K)
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| | Protest march targets French reactor 576
Declan Butler
doi:10.1038/368576b0
PDF (142K)
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| | India agrees to new terms on rocket contract with Russia 577
K. S. Jayaraman
doi:10.1038/368577a0
PDF (148K)
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| | Study confirms AZT's lack of prophylactic effect 577
John Maddox
doi:10.1038/368577b0
PDF (148K)
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| | Newspaper revives anti-HIV claims 577
doi:10.1038/368577c0
PDF (148K)
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| | Research boost blocked in Czech universities 578
Alison Abbott
doi:10.1038/368578a0
PDF (154K)
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| | 'Ecotourism' plans come under fire 578
Carl Levitin
doi:10.1038/368578b0
PDF (154K)
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| | Correspondence | |
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| | Undue credit for supervisors 579
Bob Ward
doi:10.1038/368579a0
PDF (143K)
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| | In the eye of the beholder? 579
J. Cooke
doi:10.1038/368579b0
PDF (143K)
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| | Leprosy vaccine 579
Barry R. Bloom, William R. Jacobs Jr & Josephine E. Clark-Curtiss
doi:10.1038/368579c0
References | PDF (143K)
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| | Italy's contribution to EMBL 580
Alfonso M. Liquori
doi:10.1038/368580a0
PDF (143K)
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| | Descent to tabloid Nature? 580
Stephen Jones & Catherine Jomary
doi:10.1038/368580b0
PDF (143K)
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| | Delaneyandcancer 580
Thomas H. Jukes
doi:10.1038/368580c0
References | PDF (143K)
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| | Fresh start for Europe 581
John V. Lake
doi:10.1038/368581a0
PDF (144K)
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| | Nuclear weapons 581
Martin M. Kaplan
doi:10.1038/368581b0
PDF (144K)
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| | Don't eat it 581
Chris Seal & David Parker
doi:10.1038/368581c0
PDF (144K)
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| | How to hasten peace in Ireland 581
D. T Elmore
doi:10.1038/368581d0
PDF (144K)
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| | Commentary |  |
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| | Change the rules for food additives 582
The Delaney clause, embodied in US legislation in 1958, prohibits the addition to food of any level of any carcinogen. This position cannot be sustained in the face of progress in understanding chemically induced cancer.
John Ashby
doi:10.1038/368582a0
References | PDF (145K)
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| | News and Views |  |
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| | Rolling back the frontiers in the brain 583
A global scientific programme using a sweeping range of techniques to tackle some of the most daunting problems in biology ought to be impossible. But it works.
Nicholas Short
doi:10.1038/368583a0
PDF (157K)
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| | Distantly detecting deuterium 584
John N. Bahcall
doi:10.1038/368584a0
References | PDF (264K)
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| | Heliosphere in a bottle 585
W. S Kurth
doi:10.1038/368585a0
References | PDF (147K)
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| | Bonanza at Shanghuang 586
R. D Martin
doi:10.1038/368586a0
References | PDF (393K)
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| | On making a skeleton 587
Cheryll Tickle
doi:10.1038/368587a0
References | PDF (276K)
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| | The yucca expediency 588
Peter D. Moore
doi:10.1038/368588a0
PDF (377K)
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| | A question of identity 589
Annabelle Mclver
doi:10.1038/368589a0
References | PDF (384K)
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| | Walls have voices 590
David Jones
doi:10.1038/368590a0
PDF (152K)
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| | Scientific Correspondence | |
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| | Dentine in conodonts 591
Ivan J. Sansom, M. Paul Smith & Moya M Smith
doi:10.1038/368591a0
References | PDF (248K)
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| | Birth date and sporting success 592
Ad Dudink
doi:10.1038/368592a0
References | PDF (145K)
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| | Sensory maps in the human brain 592
Tony T. Yang, C. Gallen, B. Schwartz, F. E. Bloom, V. S. Ramachandran & S Cobb
doi:10.1038/368592b0
References | PDF (292K)
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| | New mammals not so seldom 593
Ronald H. Pine
doi:10.1038/368593a0
References | PDF (166K)
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| | No verification for Milankovitch 594
Jurate Maciunas Landwehr, Isaac J. Winograd & Tyler B. Coplen
doi:10.1038/368594a0
References | PDF (139K)
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| | Skin cancer and ultraviolet 594
Anne Kricker, Bruce K. Armstrong & Anthony J. McMichael
doi:10.1038/368594b0
PDF (139K)
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| | Skin cancer and ultraviolet 594
S Madronich & F. de Gruijl
doi:10.1038/368594c0
References | PDF (139K)
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| | Book Reviews | |
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| | Good food, fine words 595
Nicholas Kuril reviews Food and Feast in Medieval England
By
P. W. Hammond, Maguelonne Toussaint-Samet., Peter , Maggie , Gill , Jane , Jennifer BrearsBlackCorbishleyRenfrewStead & Hervé This-Benckhard
doi:10.1038/368595a0
PDF (249K)
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| | Kids' stuff 596
David Hawkridge reviews The Children's Machine: Rethinking School in the Age of the Computer
By
Seymour Papert & Joseph B & Jo Anne & Jane E. Giac-quintaBauerLevin
doi:10.1038/368596a0
PDF (258K)
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| | Between electrode and solution 597
Allen J. Bard reviews Fundamentals of Electrochemistry
By
Vladimir Sergeevich Bagotzky
doi:10.1038/368597a0
PDF (260K)
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| | Chance and necessity 598
David Goodstein reviews The Refrigerator and the Universe: Understanding the Laws of Energy
By
Martin Inge F. GoldsteinGoldstein
doi:10.1038/368598a0
PDF (154K)
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| | Articles |  |
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| | Deuterium abundance and background radiation temperature in high-redshift primordial clouds 599
A. Songaila, L. L. Cowie, C. J Hogan & M. Rugers
doi:10.1038/368599a0
Abstract & References | PDF (639K)
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| | A diverse new primate fauna from middle Eocene fissure-fillings in southeastern China 604
K. Christopher Beard, Tao Qi, Mary R. Dawson, Banyue Wang & Chuankuei Li
doi:10.1038/368604a0
Abstract & References | PDF (756K)
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| | Letters | |
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| | The shape, expansion rate and distance of supernova 1993J from VLBI measurements 610
N. Bartel, M. F. Bietenholz, M. P. Rupen, J. E. Conway, A. J. Beasley, R. A Sramek, J. D. Romney, M. A. Titus, D. A. Graham, V. I. Altunin, D. L. Jones, A. Rius, T. Venturi, G. Umana, R. L. Francis, M. L. McCall, M. G Richer, C. C. Stevenson, K. W. Weiler, S. D. Van Dyk, N. Panagia, W. H. Cannon, J. Popelar & R. J. Davis
doi:10.1038/368610a0
First paragraph & References | PDF (449K)
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| | Direct catalytic conversion of methane to acetic acid in an aqueous medium 613
Minren Lin & Ayusman Sen
doi:10.1038/368613a0
First paragraph & References | PDF (277K)
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| | Avalanches and power-law behaviour in lung inflation 615
Béla Suki, Albert-László Barabási, Zoltán Hantos, Ferenc Peták & H. Eugene Stanley
doi:10.1038/368615a0
First paragraph & References | PDF (410K)
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| | Coastal eutrophication near the Mississippi river delta 619
R. Eugene Turner & Nancy N. Rabalais
doi:10.1038/368619a0
First paragraph & References | PDF (402K)
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| | Worldwide occurrence of silica-rich melts in sub-continental and sub-oceanic mantle minerals 621
P. Schiano & R. Clocchiatti
doi:10.1038/368621a0
First paragraph & References | PDF (444K)
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| | Variations in rupture process with recurrence interval in a repeated small earthquake 624
J. E. Vidale, W. L. ElIsworth, A. Cole & C. Marone
doi:10.1038/368624a0
First paragraph & References | PDF (315K)
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| | Metabolism of polyhalogenated compounds by a genetically engineered bacterium 627
Lawrence P. Wackett, Michael J. Sadowsky, Lisa M. Newman, Hor-Gil Hur & Shuying Li
doi:10.1038/368627a0
First paragraph & References | PDF (336K)
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| | Sympatric speciation suggested by monophyly of crater lake cichlids 629
Ulrich K. Schliewen, Diethard Tautz & Svante Pääbo
doi:10.1038/368629a0
First paragraph & References | PDF (445K)
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|
| | Brain regions associated with acquisition and retrieval of verbal episodic memory 633
T. Shallice, P. Fletcher, C. D. Frith, P. Grasby, R. S. J. Frackowiak & R. J. Dolan
doi:10.1038/368633a0
First paragraph & References | PDF (398K)
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| | Role of guanylyl cyclase and cGMP-dependent protein kinase in long-term potentiation 635
Min Zhuo, Yinghe Hu, Carsten Schultz, Eric R. Kandel & Robert D. Hawkins
doi:10.1038/368635a0
First paragraph & References | PDF (535K)
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| | Limb alterations in brachypodism mice due to mutations in a new member of the TGF -superfamily 639
Elaine E. Storm, Thanh V. Huynh, Neal G. Copeland, Nancy A. Jenkins, David M. Kingsley & Se-Jin Lee
doi:10.1038/368639a0
First paragraph & References | PDF (857K)
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| | Ligand for FLT3/FLK2 receptor tyrosine kinase regulates growth of haematopoietic stem cells and is encoded by variant RNAs 643
C. Hannum, J. Culpepper, D. Campbell, T. McClanahan, S. Zurawski, R. Kastelein, J. F. Bazan, S. Hudak, J. Wagner, J. Mattson, J. Luh, G. Duda, N. Martina, D Peterson, S. Menon, A. Shanafelt, M. Muench, G. Kelner, R. Namikawa, D. Rennick, M.-G. Roncarolo, A. Zlotnik, O. Rosnet, P. Dubreuil, D. Birnbaum & F. Lee
doi:10.1038/368643a0
First paragraph & References | PDF (813K)
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| | Specificity of the thrombin receptor for agonist peptide is defined by its extracellular surface 648
Robert E. Gerszten, Ji Chen, Maki Ishli, Kenji Ishil, Ling Wang, Tania Nanevicz, Christoph W. Turck, Thien-Khai H. Vu & Shaun R. Coughlin
doi:10.1038/368648a0
First paragraph & References | PDF (433K)
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| | Calmodulin interacts with amphiphilic peptides composed of all D-amino acids 651
Phyllis J. Fisher, Franklyn G. Prendergast, Mark R. Ehrhardt, Jeffrey L. Urbauer, A. Joshua Wand, Salah S. Sedarous, Daniel J. McCormick & Paul J. Buckley
doi:10.1038/368651a0
First paragraph & References | PDF (297K)
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|
| | Bacteriophage T4 encodes a co-chaperonin that can substitute for Escherichia coli GroES in protein folding 654
Saskia M. van der Vies, Anthony A. Gatenby & Costa Georgopoulos
doi:10.1038/368654a0
First paragraph & References | PDF (340K)
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| | Structural and kinetic characterization of a -lactamase-inhibitor protein 657
Natalie C. J. Strynadka, Susan E. Jensen, Kathy Johns, Helen Blanchard, Malcolm Page, André Matagne, Jean-Marie Frère & Michael N. G. James
doi:10.1038/368657a0
First paragraph & References | PDF (617K)
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|
| | Structure of restriction
endonuclease BamHI
and its relationship to EcoRI
660
M. Newman, T. Strzelecka, L. F. Dorner, I. Schildkraut & A. K. Aggarwal
doi:10.1038/368660a0
First paragraph & References | PDF (628K)
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|
| | Correction | |
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| |
Formation of haematopoietic micro-environment and haematopoietic stem cells from single human bone marrow stem cells
664
Shiang Huang & Leon W. M. M. Huang
doi:10.1038/368664a0
PDF (111K)
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|
| | Erratum | |
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| |
A convective model for the zonal jets in the atmospheres of Jupiter and Saturn
664
Scott A. Condie & Peter B. Rhines
doi:10.1038/368664b0
PDF (109K)
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|
| | nature genetics | |
|
| |
Righting an inherited wrong
665
Adrian J. Ivinson
doi:10.1038/368665a0
Abstract & References | PDF (161K)
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|
| | GUIDE TO AUTHORS | |
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| |
666
doi:10.1038/368666a0
PDF (146K)
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| | Product Reviews | |
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Catch and move — cut or fuse 667
Karin Schüze & Annette Clement-Sengewald
doi:10.1038/368667a0
Abstract & References | PDF (524K)
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| |
From the analytical arena
669
Diane Gershon
doi:10.1038/368669a0
PDF (663K)
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