| | Opinion |  |
 |
| | Beyond the trouble in the Gulf 683
No amount of resolution by the United Nations can hide the truth that even a quick resolution of the problems created in Kuwait by Iraq (which seems unlikely) will not restore stability to the Middle East.
doi:10.1038/346683a0
PDF (118K)
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| | Integration problems 684
Science has a fighting chance of survival in the eastern part of Germany. But will it seize the moment?
doi:10.1038/346684a0
PDF (134K)
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| | Untransparent grants 684
The British Medical Research Council will have to be more open about its research policy.
doi:10.1038/346684b0
PDF (134K)
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| | News | |
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| | MRC's cryobiology closure evokes protests 685
David Concar
doi:10.1038/346685a0
PDF (142K)
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| | Fast track for AIDS and cancer drugs 685
Diane Gershon
doi:10.1038/346685b0
PDF (142K)
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| | Radio to the rescue 686
Christopher Anderson & David Lindley
doi:10.1038/346686a0
PDF (145K)
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| | Go-ahead for Japanese telescope? 686
David Swinbanks
doi:10.1038/346686b0
PDF (145K)
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| | Ready for the future? 687
Christopher Anderson
doi:10.1038/346687a0
PDF (148K)
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| | Trial approved for saliva test 687
Elizabeth Schaefer
doi:10.1038/346687b0
PDF (148K)
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| | Fallout hits research 688
Steven Dickman
doi:10.1038/346688a0
PDF (144K)
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| | MITI heads for inner space 688
David Swinbanks
doi:10.1038/346688b0
PDF (277K)
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| | Heated argument in prospect 689
Tania Ewing & Seth Shulman
doi:10.1038/346689a0
PDF (148K)
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| | Soviets break the ice 690
Steven Dickman
doi:10.1038/346690a0
PDF (142K)
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| | Return of life unobserved 690
Christopher Anderson
doi:10.1038/346690b0
PDF (142K)
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| | A matter of education 691
Peter Aldhous
doi:10.1038/346691a0
PDF (140K)
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| | Filing plans for algae 691
David Concar
doi:10.1038/346691b0
PDF (140K)
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| | Cetus forced into staff cuts 691
Elizabeth Schaefer
doi:10.1038/346691c0
PDF (140K)
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| | Councils to cooperate 691
Nuala Moran
doi:10.1038/346691d0
PDF (140K)
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| | Commentary |  |
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| | A genuine global partnership? 692
Japan is considering a huge financial investment in the US Superconducting Super Collider. But other types of contribution, to this and any international project, are equally important.
S. S. Yamamoto
doi:10.1038/346692a0
PDF (143K)
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| | Correspondence | |
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| | Problems with telescopes 693
RAYMOND N. WILSON
doi:10.1038/346693a0
References | PDF (147K)
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| | Foreign aid 693
RALPH A. LEWIN
doi:10.1038/346693b0
PDF (147K)
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| | Need for religion 693
ANDREJS BAIDINS
doi:10.1038/346693c0
PDF (147K)
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| | Assertive sentence titles 694
EDWARD J. KROWITZ
doi:10.1038/346694a0
References | PDF (144K)
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| | Relativity values 694
A. J. BUNTING
doi:10.1038/346694b0
PDF (144K)
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| | Metric false trail 694
B. E. P. CLEMENT
doi:10.1038/346694c0
PDF (144K)
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| | Never again 694
MANFRED HAHN
doi:10.1038/346694d0
PDF (144K)
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| | BSE gene-linked? 694
O. H. G. SPARROW
doi:10.1038/346694e0
PDF (144K)
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| | News and Views |  |
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| | Towards a history of the Sun? 695
There seems to be just a chance that geochemists could reconstruct a record of the Sun's activity as a main-sequence star from measurements of the abundance of xenon-126 in rocks.
John Maddox
doi:10.1038/346695a0
PDF (145K)
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| | GAPs in understanding Ras 696
Michael H. Wigler
doi:10.1038/346696a0
References | PDF (268K)
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| | All surface and no activity 697
Tony Stace
doi:10.1038/346697a0
References | PDF (253K)
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| | Maintenance is presynaptic 698
T. V. P. Bliss
doi:10.1038/346698a0
References | PDF (262K)
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| | A quantum time machine 699
Tony Sudbery
doi:10.1038/346699a0
PDF (277K)
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| | Messenger gets the green light 700
Robin Irvine
doi:10.1038/346700a0
References | PDF (266K)
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| | Deep causes of hotspots 701
Marcia McNutt
doi:10.1038/346701a0
References | PDF (266K)
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| | Neurofibromatosis gene cloned 703
Bruce Ponder
doi:10.1038/346703a0
References | PDF (246K)
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| | High charges 704
David Jones
doi:10.1038/346704a0
PDF (136K)
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| | Scientific Correspondence | |
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| | Whale migration record 705
GREGORYS STONE, LILIAN FLOREZ-GONZALEZ & STEVEN KATONA
doi:10.1038/346705a0
References | PDF (146K)
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| | Rotating gyros and gravity 705
ALEX HARVEY
doi:10.1038/346705b0
References | PDF (146K)
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| | Sunspot cycles and climate 705
G. HOLDSWORTH
doi:10.1038/346705c0
References | PDF (282K)
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| | Helical period of Z-DNA 706
PATRICIA G. ARSCOTT, GIL LEE, VICTOR A. BLOOMFIELD & D. FENNELL EVANS
doi:10.1038/346706a0
PDF (150K)
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| | Nepotism in the honey bee 706
NORMAN F. CARLIN & PETER C. FRUMHOFF
doi:10.1038/346706b0
PDF (285K)
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| | Nepotism in the honey bee 707
ROBERT E. PAGEJR, MICHAEL D. BREED & WAYNEM GETZ
doi:10.1038/346707a0
PDF (149K)
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| | Nepotism in the honey bee 707
BENJAMIN P. OLDROYD, THOMAS E. RINDERER & STEVEN M. BUCO
doi:10.1038/346707b0
PDF (279K)
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| | Nepotism in the honey bee 708
ROBERT E. PAGE JR & GENE E. ROBINSON
doi:10.1038/346708a0
References | PDF (144K)
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| | Book Reviews | |
|
| | Odder than we can think 709
Alex Comfort reviews The Threat and The Glory
By
Peter Medawar and A very Decided Preference
By
Jean Medawar
doi:10.1038/346709a0
PDF (317K)
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|
| | Chaperones of the cell 710
R. John ELLis reviews Stress Proteins in Biology and Medicine.
Edited By
R. I. Morimoto, A. Tissières & C. Georgopoulos
doi:10.1038/346710a0
PDF (153K)
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| | The importance of being alpha 711
W. C. McGrew reviews The Chimpanzees of the Mahale Mountains. Sexual and Life History Strategies
Edited by
Toshisada Nishida
doi:10.1038/346711a0
PDF (173K)
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| | Ordered growth 711
Lewis Wolpert reviews Pattern Formation. Ciliate Studies and Models
By
Joseph Frankel
doi:10.1038/346711b0
PDF (341K)
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| | Early blooming 712
Ghillean T. Prance reviews The Chelsea Gardener. Philip Miller 1691-1771
By
Hazel le Rougetel
doi:10.1038/346712a0
PDF (184K)
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|
| | Review Article | |
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| | Sun and dust versus greenhouse gases: an assessment of their relative roles in global climate change 713
James E. Hansen & Andrew A. Lacis
doi:10.1038/346713a0
Abstract & References | PDF (870K)
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|
| | Articles |  |
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| | Stimulation of p21
ras
upon T-cell activation 719
Julian Downward, Jonathan D. Graves, Patricia H. Warne, Sydonia Rayter & Doreen A. Cantrell
doi:10.1038/346719a0
Abstract & References | PDF (494K)
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|
| | Presynaptic mechanism for long-term potentiation in the hippocampus 724
John M. Bekkers & Charles F. Stevens
doi:10.1038/346724a0
Abstract & References | PDF (659K)
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|
| | Letters | |
|
| | Detection of diffuse interstellar bands in the infrared 729
C. Joblin, J. P. Maillard, L. d'Hendecourt & A. Léger
doi:10.1038/346729a0
First paragraph & References | PDF (324K)
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|
| | Extending the power of powder diffraction for structure determination 731
W. I. F. David
doi:10.1038/346731a0
First paragraph & References | PDF (365K)
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| | Sensitivity of regional climates to localized precipitation in global models 734
A. J. Pitman, A. Henderson-Sellers & Z-L. Yang
doi:10.1038/346734a0
First paragraph & References | PDF (481K)
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|
| | Partly pedogenic origin of magnetic variations in Chinese loess 737
L. P. Zhou, F. Oldfield, A. G. Wintle, S. G. Robinson & J. T. Wang
doi:10.1038/346737a0
First paragraph & References | PDF (337K)
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|
| | Differential denudation and flexural isostasy in formation of rifted-margin upwarps 739
A. R. Gilchrist & M. A. Summerfield
doi:10.1038/346739a0
First paragraph & References | PDF (428K)
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|
| | Pyrite formation linked with hydrogen evolution under anaerobic conditions 742
E. Drobner, H. Huber, G. Wächtershäuser, D. Rose & K. O. Stetter
doi:10.1038/346742a0
First paragraph & References | PDF (349K)
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|
| | Source-area determination of elephant ivory by isotopic analysis 744
N. J. van der Merwe, J. A. Lee-Thorp, J. F. Thackeray, A. Hall-Martin, F. J. Kruger, H. Coetzee, R. H. V. Bell & M. Lindeque
doi:10.1038/346744a0
First paragraph & References | PDF (321K)
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|
| | Isotope fingerprints in elephant bone and ivory 747
J. C. Vogel, B. Eglington & J. M. Auret
doi:10.1038/346747a0
First paragraph & References | PDF (323K)
|
|
| | Maintenance of B-cell memory by long-lived cells generated from proliferating precursors 749
Birgit Schittek & Klaus Rajewsky
doi:10.1038/346749a0
First paragraph & References | PDF (364K)
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|
| |  2-Microglobulin restriction of antigen presentation 751
Béatrice Pérarnau, Claire-Anne Siegrist, Anne Gillet, Claude Vincent, Shoji Kimura & François A. Lemonnier
doi:10.1038/346751a0
First paragraph & References | PDF (464K)
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|
| | Suppression of c-ras transformation by GTPase-activating protein 754
Ke Zhang, Jeffrey E. DeClue, William C. Vass, Alex G. Papageorge, Frank McCormick & Douglas R. Lowy
doi:10.1038/346754a0
First paragraph & References | PDF (374K)
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|
| | Obligatory wounding requirement for tumorigenesis in v-jun transgenic mice 756
Andre C. Schuh, Sarah J. Keating, Felipe S. Monteclaro, Peter K. Vogt & Martin L. Breitman
doi:10.1038/346756a0
First paragraph & References | PDF (716K)
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|
| | Human cyclin A is adenovirus E1A-associated protein p60 and behaves differently from cyclin B 760
Jonathon Pines & Tony Hunter
doi:10.1038/346760a0
First paragraph & References | PDF (488K)
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|
| | Sequential activation of HOX2 homeobox genes by retinoic acid in human embryonal carcinoma cells 763
Antonio Simeone, Dario Acampora, Laura Arcioni, Peter W. Andrews, Edoardo Boncinelli & Fulvio Mavilio
doi:10.1038/346763a0
First paragraph & References | PDF (442K)
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|
| | Reversible inactivation of K+ channels of Vcia stomatal guard cells following the photolysis of caged inositol 1,4,5-trisphosphate 766
Michael R. Blatt, Gerhard Thiel & David R. Trentham
doi:10.1038/346766a0
First paragraph & References | PDF (462K)
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|
| | Elevation of cytoplasmic calcium by caged calcium or caged inositol trisphosphate initiates stomatal closure 769
S. Gilroy, N. D. Read & A. J. Trewavas
doi:10.1038/346769a0
First paragraph & References | PDF (356K)
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|
| | Bis-methionine axial ligation of haem in bacterioferritin from Pseudomonas aeruginosa
771
Myles R. Cheesman, Andrew J. Thomson, Colin Greenwood, Geoffrey R. Moore & Fahmi Kadir
doi:10.1038/346771a0
First paragraph & References | PDF (363K)
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|
| | Implications of thermodynamics of protein folding for evolution of primary sequences 773
E. I. Shakhnovich & A. M. Gutin
doi:10.1038/346773a0
First paragraph & References | PDF (315K)
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|
| | Product Reviews | |
|
| | Biolistic transformation: microbes to mice 776
S.A. Johnston
doi:10.1038/346776a0
Abstract & References | PDF (258K)
|
|
| | Washington's chemistry set 777
Diane Gershon
doi:10.1038/346777a0
PDF (290K)
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