| | Opinion |  |
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| | Threat of calamity for world trade 567
It is properly ironic that the conference on European political union beginning this week should follow so quickly last week's collapse of the four-year effort by 107 governments to extend GATT.
doi:10.1038/348567a0
PDF (219K)
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| | News | |
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| | Genome project to tackle mass screening 569
Christopher Anderson
doi:10.1038/348569a0
PDF (128K)
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| | NASA woes a re self-inflicted says report 569
David Lindley
doi:10.1038/348569b0
PDF (128K)
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| | All to play for in Madrid 570
Peter Aldhous
doi:10.1038/348570a0
PDF (128K)
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| | Global research centres open 570
Peter Aldhous
doi:10.1038/348570b0
PDF (128K)
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| | France gets greener 570
Peter Coles
doi:10.1038/348570c0
PDF (128K)
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| | Tacking on grants 570
Elizabeth Schaefer
doi:10.1038/348570d0
PDF (128K)
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Per ardua ad astra
571
David Lindley
doi:10.1038/348571a0
PDF (140K)
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| | Telescope high and dry in the desert 571
Steven Dickman
doi:10.1038/348571b0
PDF (140K)
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| | Japan takes US role model 572
David Swinbanks
doi:10.1038/348572a0
PDF (130K)
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| | Public funds for POST? 572
Peter Steven AldhousDickman
doi:10.1038/348572b0
PDF (130K)
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| | Clampdown continues 572
Peter Aldhous
doi:10.1038/348572c0
PDF (130K)
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| | Luring back the exiles 573
Steven Dickman
doi:10.1038/348573a0
PDF (179K)
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| | BST gets clean bill of health 574
Diane Gershon
doi:10.1038/348574a0
PDF (129K)
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| | Networks spur to crime 574
Christopher Anderson
doi:10.1038/348574b0
PDF (129K)
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| | Mirror design success 574
Elizabeth Schaefer
doi:10.1038/348574c0
PDF (129K)
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| | Horse dope-dispute rages on 575
John Maddox
doi:10.1038/348575a0
PDF (126K)
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| | News and Views |  |
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| | Commercial sponsorship reaches new heights 575
David Swinbanks
doi:10.1038/348575b0
PDF (126K)
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| | News | |
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| | Rule change revives LINK 575
Peter Aldhous
doi:10.1038/348575c0
PDF (126K)
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| | Commentary |  |
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| | Catching the tide of innovation 576
The reasons for Japanese pre-eminence in many areas of technology are widely misunderstood in Western countries, who would do well to take advantage of the opportunities that Japan offers.
Alfred Scheidegger
doi:10.1038/348576a0
PDF (123K)
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| | Correspondence | |
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| | Roots of dogma in biology 577
DAVE CRAWSHAW THOMAS
doi:10.1038/348577a0
PDF (124K)
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| | Investment in UK universities 577
D. G. GRAHAME-SMITH
doi:10.1038/348577b0
PDF (124K)
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| | Investment in UK universities 577
ULRIKE WINTERSBERGER
doi:10.1038/348577c0
References | PDF (124K)
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| | Origin and spread of AIDS 578
A. KARPAS
doi:10.1038/348578a0
References | PDF (133K)
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| | News and Views | |
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| | Making the Universe hang together 579
A simple explanation why most of the mass in the Universe is not visible unites questions such as the ionization of intergalactic clouds and the age of the Universe in an arresting way.
John Maddox
doi:10.1038/348579a0
PDF (128K)
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| | The seismic cycle pursued 580
Allan G. Lindh
doi:10.1038/348580a0
References | PDF (276K)
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| | The invariant dating service 581
Frances M. Brodsky
doi:10.1038/348581a0
References | PDF (262K)
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| | Trapped exons 582
doi:10.1038/348582a0
PDF (134K)
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| | Hard stuff 582
doi:10.1038/348582b0
PDF (134K)
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| | The right size 582
doi:10.1038/348582c0
PDF (134K)
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| | Chemistry comes round 583
Philip Ball
doi:10.1038/348583a0
PDF (250K)
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| | Molecular inventiveness 583
M. F. Perutz
doi:10.1038/348583b0
References | PDF (379K)
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| | Chaos in quantum billiards 584
P. C. Main
doi:10.1038/348584a0
References | PDF (260K)
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| | Evolution of the X chromosome 585
Mary F. Lyon
doi:10.1038/348585a0
References | PDF (255K)
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| | Of micelles and membranes 586
Stanislas Leibler
doi:10.1038/348586a0
References | PDF (261K)
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| | Fly fishing downstream 587
Gines Morata & Gary Struhl
doi:10.1038/348587a0
References | PDF (273K)
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| | Micromagnetics 588
David Jones
doi:10.1038/348588a0
PDF (138K)
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| | Scientific Correspondence | |
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| | Enzyme motifs in antibodies 589
JOHN A. TAINER & VICTORIA A. R>OBERTS
doi:10.1038/348589a0
References | PDF (156K)
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| | Alcohol sensitivity 589
R. ADRON HARRIS
doi:10.1038/348589b0
References | PDF (156K)
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| | Random fingers 590
A. HOLT
doi:10.1038/348590a0
PDF (128K)
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| | Polarized views 590
T. D. DAVIES
doi:10.1038/348590b0
PDF (128K)
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| | Polarized views 590
DEREK FORDHAM
doi:10.1038/348590c0
PDF (128K)
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| | Long tree-rings 590
DAVID W. STAHLE, MALCOLM K. CLEAVELAND, JOHN G. HEHR & KEITH R. BRIFFA
doi:10.1038/348590d0
References | PDF (128K)
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| | Book Reviews | |
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| | All in his head 591
Robert Temple reviews Essays on Science: Felicitation Volume in Honour of Dr. Joseph Needham
Edited by
Hakim Mohammed Said & Mansel Davies
doi:10.1038/348591a0
PDF (181K)
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| | On the beam 592
Alan Phelps reviews Undulators and Free Electron Lasers
By
P. Luchini & H. Motz
doi:10.1038/348592a0
PDF (139K)
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| | Variety club 592
C. D. Pigott reviews Ecology of Plant Communities
By
J. O. Rieley & S. E. Page
doi:10.1038/348592b0
PDF (246K)
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| | Poison gas 593
Matthew Meselson reviews The Challenge of Chemical Weapons: An American Perspective
By
Victor A. Utgoff
doi:10.1038/348593a0
PDF (259K)
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| | Protein-rich menu 594
Richard Virden reviews Proteins: Form and Function
Edited by
Ralph A. Bradshaw, Mary Purton & Saran A. Narang
doi:10.1038/348594a0
PDF (136K)
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| | Articles |  |
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| | Seismic activity on neighbouring faults as a long-term precursor to large earthquakes in the San Francisco Bay area 595
Lynn R. Sykes & Steven C. Jaumé
doi:10.1038/348595a0
Abstract & References | PDF (739K)
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| | Intracellular transport of class II MHC molecules directed by invariant chain 600
Vincent Lotteau, Luc Teyton, Annick Peleraux, Tommy Nilsson, Lars Karlsson, Sandra L. Schmid, Vito Quaranta & Per A Peterson
doi:10.1038/348600a0
Abstract & References | PDF (1,382K)
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| | A yeast mitochondrial outer membrane protein essential for protein import and cell viability 605
Kevin P. Baker, Angela Schaniel, Dietmar Vestweber & Gottfried Schatz
doi:10.1038/348605a0
Abstract & References | PDF (811K)
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| | Identification of a mitochondrial receptor complex required for recognition and membrane insertion of precursor proteins 610
Michael Kiebler, Rupert Pfaller, Thomas Söllner, Gareth Griffiths, Heinz Horstmann, Nikolaus Pfanner & Walter Neupert
doi:10.1038/348610a0
Abstract & References | PDF (1,294K)
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| | Letters | |
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| | Consistent neutrino masses from cosmology and solar physics 617
Dennis W. Sciama
doi:10.1038/348617a0
First paragraph & References | PDF (238K)
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| | Discovery of hotspots on Io using disk-resolved infrared imaging 618
J. R. Spencer, M. A. Shure, M. E. Ressler, J. D. Goguen, W. M. Sinton, D. W. Toomey, A. Denault & J. Westfall
doi:10.1038/348618a0
First paragraph & References | PDF (652K)
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| | Imaging C60 clusters on a surface using a scanning tunnelling microscope 621
R. J. Wilson, G. Meijer, D. S. Bethune, R. D. Johnson, D. D. Chambliss, M. S. de Vries, H. E. Hunziker & H. R. Wendt
doi:10.1038/348621a0
First paragraph & References | PDF (252K)
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| | Scanning tunnelling microscopy of solid C60/C70
623
J. L. Wragg, J. E. Chamberlain, H. W. White, W. Krätschmer & Donald R. Huffman
doi:10.1038/348623a0
First paragraph & References | PDF (280K)
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| | Computer simulations of a water/oil interface in the presence of micelles 624
B. Smit, P. A. J. Hilbers, K. Esselink, L. A. M. Rupert, N. M. van Os & A. G. Schlijper
doi:10.1038/348624a0
First paragraph & References | PDF (308K)
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| | Future changes in stratospheric ozone and the role of heterogeneous chemistry 626
Guy P. Brasseur, Claire Granier & Stacy Walters
doi:10.1038/348626a0
First paragraph & References | PDF (463K)
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| | Mechanism of the  − phase transformation of Mg2SiO4 at high temperature and pressure 628
D. C. Rubie & A. J. Brearley
doi:10.1038/348628a0
First paragraph & References | PDF (703K)
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| | Evidence for reflectors in the lower continental crust before rifting in the Valencia trough 631
A. B. Watts, M. Torné, P. Buhl, A. Mauffret, G. Pascal & B. Pinet
doi:10.1038/348631a0
First paragraph & References | PDF (1,403K)
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| | Use of learned odours by a parasitic wasp in accordance with host and food needs 635
W. J. Lewis & Keiji Takasu
doi:10.1038/348635a0
First paragraph & References | PDF (241K)
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| | Protein kinase A regulates chloride conductance in endocytic vesicles from proximal tubule 637
Hae-Rahn Bae & A. S. Verkman
doi:10.1038/348637a0
First paragraph & References | PDF (450K)
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| | Transfer of diabetes in mice prevented by blockade of adhesion-promoting receptor on macrophages 639
Patricia Hutchings, Hugh Rosen, Lorraine O'Reilly, Elizabeth Simpson, Siamon Gordon & Anne Cooke
doi:10.1038/348639a0
First paragraph & References | PDF (1,186K)
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| | Strong xenogeneic HLA response in transgenic mice after introducing an  3 domain into HLA B27 642
Ulrich Kalinke, Bernd Arnold & Günter J. Hämmerling
doi:10.1038/348642a0
First paragraph & References | PDF (450K)
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| | ATP sulphurylase activity of the nodP and nodQ gene products of Rhizobium meliloti
644
Julie Schwedock & Sharon R. Long
doi:10.1038/348644a0
First paragraph & References | PDF (608K)
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| | Point mutation in the exoplasmic domain of the erythropoietin receptor resulting in hormone-independent activation and tumorigenicity 647
Akihiko Yoshimura, Gregory Longmore & Harvey F. Lodish
doi:10.1038/348647a0
First paragraph & References | PDF (539K)
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| | Consecutive inactivation of both alleles of the pim-1 proto-oncogene by homologous recombination in embryonic stem cells 649
Hein te Riele, Els Robanus Maandag, Alan Clarke, Martin Hooper & Anton Berns
doi:10.1038/348649a0
First paragraph & References | PDF (466K)
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| | A mutation in the tRNALeu(UUR) gene associated with the MELAS subgroup of mitochondrial encephalomyopathies 651
Yu-ichi Goto, Ikuya Nonaka & Satoshi Horai
doi:10.1038/348651a0
First paragraph & References | PDF (401K)
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| | Evolution of a polymeric globin in the brine shrimp Artemia
653
A. M. Manning, C. N. A. Trotman & W. P. Tate
doi:10.1038/348653a0
First paragraph & References | PDF (535K)
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| | Product Reviews | |
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| | Chemiluminescent multiplex DNA sequencing 657
Patrick M. Gillevet
doi:10.1038/348657a0
Abstract & References | PDF (239K)
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| | Equipping the lab 658
Diane Gershon
doi:10.1038/348658a0
PDF (635K)
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