| | Opinion |  |
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| | Are federations always indissoluble? 89
Russia's heavy-handed approach to separatist tendencies in Chechenia is old-fashioned, to say the least, especially because both federalism and separatism are likely to be prominent features of the constitutional landscape ahead.
doi:10.1038/373089a0
PDF (232K)
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| | Complexity on a chip 90
Do not pity those compelled to do without their latest microprocessor.
doi:10.1038/373090a0
PDF (120K)
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| | Darwin lives on... 90
A British magazine appears to believe (with Lysenko) that genes can triumph over natural selection.
doi:10.1038/373090b0
PDF (120K)
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| | News | |
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| | Republicans see private sector as holding key to growth of US science 91
Colin Macilwain
doi:10.1038/373091a0
PDF (143K)
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| | ILL reopens after 4-year shut-down 91
DECLAN BUTLER
doi:10.1038/373091b0
PDF (143K)
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| | Call for more coordination of Gulf war syndrome research 92
Colin Macilwain
doi:10.1038/373092a0
PDF (133K)
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| | Ballot urged on ageing centre plans 92
Sally Lehrman
doi:10.1038/373092b0
PDF (133K)
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| | Blood transfusion system comes under fire in Canada 92
David Spurgeon
doi:10.1038/373092c0
PDF (133K)
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| | Computer networks win new funding in Japan 93
David Swinbanks
doi:10.1038/373093a0
PDF (217K)
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| | UK researchers highlight lack of funds for overheads 93
Maggie Verrall
doi:10.1038/373093b0
PDF (217K)
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| | Roche pledges independence to new institute 94
Colin Macilwain
doi:10.1038/373094a0
PDF (143K)
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| | Congress seeks regulation controls 94
Tony Reichhardt
doi:10.1038/373094b0
PDF (143K)
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| | Bavaria seeks opt-out from university funding system 95
Alison Abbott
doi:10.1038/373095a0
PDF (181K)
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| | Cambridge turns to its gospels 95
MAGGIE VERRALL
doi:10.1038/373095b0
PDF (177K)
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| | Russian academy backs off take-over of applied research labs 95
Vladimir Pokrovsky
doi:10.1038/373095c0
PDF (177K)
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| | Belfast university promises commitment to neutrality... 96
Declan Butler
doi:10.1038/373096a0
PDF (131K)
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| | ... as US aims to boost science links 96
DECLAN BUTLER
doi:10.1038/373096b0
PDF (131K)
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| | Patent changes in India clear path for US accord 96
K. S. Jayaraman
doi:10.1038/373096c0
PDF (131K)
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| | Ethics board members quit over 'imbalance' 97
Alison Abbott
doi:10.1038/373097a0
PDF (138K)
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| | 'Out-dated figures misled critics of space station' 97
Colin Macilwain
doi:10.1038/373097b0
PDF (138K)
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| | Correspondence | |
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| | More on DNA typing dispute 98
J. H. Edwards
doi:10.1038/373098a0
References | PDF (140K)
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| | More on DNA typing dispute 98
David G. Boyd
doi:10.1038/373098b0
References | PDF (138K)
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| | More on DNA typing dispute 98
Charles M. Strom
doi:10.1038/373098c0
References | PDF (273K)
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| | More on DNA typing dispute 99
David Goldman & Jeffrey Long
doi:10.1038/373099a0
References | PDF (137K)
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| | More on DNA typing dispute 99
G. P. Rédel
doi:10.1038/373099b0
References | PDF (137K)
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| | Commentary |  |
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| | The Pope and the ontogeny of persons 100
In his recent book Crossing the Threshold of Hope, Pope John Paul II airs his views on human reproduction. The pity is that he ignores most of modern genetics and embryology.
John Godfrey
doi:10.1038/373100a0
PDF (133K)
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| | News and Views |  |
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| | The wonders of the microlaser 101
A group at MIT has managed to build and operate a laser that functions as such even when the average number of photons in the optical cavity is less than one.
John Maddox
doi:10.1038/373101a0
PDF (133K)
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| | Virological mayhem 102
Simon Wain-Hobson
doi:10.1038/373102a0
References | PDF (136K)
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| | Of dusty tori and black holes 103
Richard Barvainis
doi:10.1038/373103a0
References | PDF (456K)
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| | Under the ringed basins 104
H. J. Melosh
doi:10.1038/373104a0
References | PDF (291K)
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| | Crystallographic antibodies 105
Michael Gro
doi:10.1038/373105a0
References | PDF (322K)
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| | A superconducting siphon 106
Sean Washburn
doi:10.1038/373106a0
References | PDF (359K)
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| | Thorny issues in neurons 107
Rodolfo Llinás
doi:10.1038/373107a0
References | PDF (368K)
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| | News | |
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| | Forced wood 108
David Jones
doi:10.1038/373108a0
PDF (180K)
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| | Scientific Correspondence | |
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| | Exercise and brain neurotrophins 109
S. A. Neeper, F. Góauctemez-Pinilla, J. Choi & C. Cotman
doi:10.1038/373109a0
References | PDF (213K)
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| | Weathering and glacial cycles 110
Jonathan Adams
doi:10.1038/373110a0
PDF (135K)
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| | Weathering and glacial cycles 110
James E. Lovelock & Lee R. Kump
doi:10.1038/373110b0
References | PDF (136K)
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| | Dorsoventral axis inversion 110
T. C. Lacalli
doi:10.1038/373110c0
References | PDF (289K)
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| | Dorsoventral axis inversion 111
K. J. Peterson
doi:10.1038/373111a0
References | PDF (325K)
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| | Cation selectivity in ion channels 112
I. D. Kerr & M. S. P. Sansom
doi:10.1038/373112a0
References | PDF (174K)
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| | Bet on positional information 112
Lewis Wolpert
doi:10.1038/373112b0
References | PDF (174K)
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| | Book Reviews | |
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| | Samurai of the cosmos 113
William H. Press reviews Voyage to the Great Attractor: Exploring Intergalactic Space
By
Alan Dressier
doi:10.1038/373113a0
PDF (384K)
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| | Drag artist 114
Rory Howlett reviews Life in Moving Fluids: The Physical Biol-ogy of Flow, Second Edition
By
Steven Vogel
doi:10.1038/373114a0
PDF (203K)
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| | Adjudicating science 115
Lee Loevinger reviews Reference Manual on Scientific Evidence
By
William W. Schwarzer
doi:10.1038/373115a0
PDF (192K)
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| | Mam and Sam 116
Douglas Palmer reviews Mammoth
By
Adrian Lister, Paul Bahn & David G. Gillette
doi:10.1038/373116a0
PDF (122K)
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| | Articles |  |
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| | Viral dynamics in human immunodeficiency virus type 1 infection 117
Xiping Wei, Sajal K. Ghosh, Maria E. Taylor, Victoria A. Johnson, Emilio A. Emini, Paul Deutsch, Jeffrey D. Lifson, Sebastian Bonhoeffer, Martin A. Nowak, Beatrice H. Hahn, Michael S. Saag & George M. Shaw
doi:10.1038/373117a0
Abstract & References | PDF (969K)
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| | Rapid turnover of plasma virions and CD4 lymphocytes in HIV-1 infection 123
David D. Ho, Avidan U. Neumann, Alan S. Perelson, Wen Chen, John M. Leonard & Martin Markowitz
doi:10.1038/373123a0
Abstract & References | PDF (429K)
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| | Letters | |
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| | Evidence for a black hole from high rotation velocities in a sub-parsec region of NGC4258 127
Makoto Miyoshi, James Moran, James Herrnstein, Lincoln Greenhill, Naomasa Nakai, Philip Diamond & Makoto Inoue
doi:10.1038/373127a0
First paragraph & References | PDF (282K)
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| | Friction melt distribution in a multi-ring impact basin 130
John G. Spray & Lucy M. Thompson
doi:10.1038/373130a0
First paragraph & References | PDF (422K)
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| | Direct spectroscopic observation of quantum jumps of a single molecule 132
Th. Basché, S. Kummer & C. Bräuchle
doi:10.1038/373132a0
First paragraph & References | PDF (335K)
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| | Relation between century-scale Holocene arid intervals in tropical and temperate zones 134
H. F. Lamb, F. Gasse, A. Benkaddour, N. El Hamouti, S. van der Kaars, W. T. Perkins, N. J. Pearce & C. N. Roberts
doi:10.1038/373134a0
First paragraph & References | PDF (404K)
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| | Effect of bed morphology on flow mixing length at river confluences 138
Jocelyn M. Gaudet & André G. Roy
doi:10.1038/373138a0
First paragraph & References | PDF (214K)
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| | Trade-off in production between adjacent seamount chains near the East Pacific Rise 140
Yang Shen, Daniel S. Scheirer, Donald W. Forsyth & Ken C. Macdonald
doi:10.1038/373140a0
First paragraph & References | PDF (639K)
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| | Albanerpetontid amphibians from the Cretaceous of Spain 143
Gerard McGowan & Susan E. Evans
doi:10.1038/373143a0
First paragraph & References | PDF (406K)
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| | Structural engineering of an orb-spider's web 146
Lorraine H. Lin, Donald T. Edmonds & Fritz Vollrath
doi:10.1038/373146a0
First paragraph & References | PDF (392K)
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| | Lek size, male mating skew and the evolution of lekking 148
Fredrik Widemo & Ian P. F. Owensi
doi:10.1038/373148a0
First paragraph & References | PDF (407K)
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| | Reduced hippocampal LTP and spatial learning in mice lacking NMDA receptor  1 subunit 151
Kenji Sakimura, Tatsuya Kutsuwada, Isao Ito, Toshiya Manabe, Chitoshi Takayama, Etsuko Kushiya, Takeshi Yagi, Shinichi Aizawa, Yoshiro Inoue, Hiroyuki Sugiyama & Masayoshi Mishina
doi:10.1038/373151a0
First paragraph & References | PDF (722K)
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| | Subthreshold synaptic Ca2+ signalling in fine dendrites and spines of cerebellar Purkinje neurons 155
Jens Eilers, George J. Augustine & Arthur Konnerth
doi:10.1038/373155a0
First paragraph & References | PDF (588K)
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| | Neuregulins are concentrated at nerve-muscle synapses and activate ACh–receptor gene expression 158
Sangmee Ahn Jo, Xuejun Zhu, Mark A. Marchionni & Steven J. Burden
doi:10.1038/373158a0
First paragraph & References | PDF (643K)
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| | Minus-end-directed motion of kinesin–coated microspheres driven by microtubule depolymerization 161
Vivian A. Lombillo, Russell J. Stewart & J. Richard McIntosh
doi:10.1038/373161a0
First paragraph & References | PDF (520K)
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| | Structural polymorphism of bacterial adhesion pili 164
Esther Bullitt & Lee Makowski
doi:
PDF (797K)
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| | The crystal structure of bluetongue virus VP7 167
Jonathan Grimes, Ajit K. Basak, Polly Roy & David Stuart
doi:10.1038/373167a0
First paragraph & References | PDF (685K)
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| | New on the Market | |
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| | Out with the old — in with the new 171
For your New Year's research resolutions — a new set of nine mouse cytokine ELISAs, a robotic analysis com-poser, three new centrifuges, a hand held infrared thermometer, and a combine SPM/SEM.
Brendan Norton
doi:10.1038/373171a0
PDF (784K)
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