| | Opinion |  |
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| | Summit times were here again 171
Last week's gathering of the seven major industrial nations of the world in Paris has produced a well-sounding communique, but no sense that the problems it describes will be quickly resolved.
doi:10.1038/340171a0
PDF (233K)
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| | Greenpeace — an apology 171
doi:10.1038/340171b0
PDF (116K)
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| | University follies 172
British universities are in for another upheaval, this time in the cause of competition and accountability.
doi:10.1038/340172a0
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| | News | |
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| | Plagiarism charge casts shadow on peer review 173
Alun Anderson
doi:10.1038/340173a0
PDF (148K)
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| | LEP in line for August advance 173
David Lindley
doi:10.1038/340173b0
PDF (148K)
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| | Students can stay in US 174
Christine McGourty & Alun Anderson
doi:10.1038/340174a0
PDF (144K)
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| | Cetus banks on interleukin 174
Robert Buderi
doi:10.1038/340174b0
PDF (144K)
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| | No new money from US government? 174
David Lindley
doi:10.1038/340174c0
PDF (144K)
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| | Food processors from Wackersdorf 174
Steven Dickman
doi:10.1038/340174d0
PDF (144K)
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| | Offshore blast causes alarm 175
David Swinbanks
doi:10.1038/340175a0
PDF (115K)
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| | Australia's network 175
Tania Ewing
doi:10.1038/340175b0
PDF (115K)
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| | Cut-price fingerprints 175
K. S. Jayaraman
doi:10.1038/340175c0
PDF (115K)
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| | Laid to rest 175
Steven Dickman
doi:10.1038/340175d0
PDF (115K)
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| | Seven go environmental 176
Peter Coles
doi:10.1038/340176a0
PDF (125K)
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| | Japan seen in good light 176
David Swinbank
doi:10.1038/340176b0
PDF (125K)
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| | Unilateral action urged 177
doi:10.1038/340177a0
PDF (149K)
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| | Grey marks from US group 177
Vera Rich
doi:10.1038/340177b0
PDF (149K)
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| | INSERM closes the file 178
Peter Coles
doi:10.1038/340178a0
PDF (152K)
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| | Taking advice from experts 178
Peter Coles
doi:10.1038/340178b0
PDF (152K)
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| | Researchers win pay awards in States ... 178
Carol Ezzell
doi:10.1038/340178c0
PDF (152K)
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| | ... and in France 178
Peter Coles
doi:10.1038/340178d0
PDF (152K)
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| | Agent Orange study blasted 179
Christine McGourty
doi:10.1038/340179a0
PDF (146K)
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| | Cap on German space budget 179
Steven Dickman & Peter Coles
doi:10.1038/340179b0
PDF (146K)
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| | Correspondence | |
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| | Animal experiments 180
DAVID G. PORTER
doi:10.1038/340180a0
PDF (143K)
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| | Anonymous authors 180
ANDRÉ BACARD
doi:10.1038/340180b0
PDF (143K)
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| | A letter from Greenpeace 180
PETER MELCHETT
doi:10.1038/340180c0
PDF (143K)
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| | Mortality 180
TSUNEYASU NISHIHARA
doi:10.1038/340180d0
References | PDF (143K)
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| | Commentary |  |
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| | A point on the arrow of time 181
In A Brief History of Time, Stephen Hawking leaves a tantalizing gap in his explanation of the arrow of time in terms of his no-boundary proposal for cosmology.
Huw Price
doi:10.1038/340181a0
PDF (286K)
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| | News and Views |  |
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| | Is there a future for research? 183
Onerous and unprecedented regulation of research, and financial difficulties, have given many researchers the impression that fruitful applications will now come only slowly, but others believe they flow too thick and fast.
John Maddox
doi:10.1038/340183a0
PDF (144K)
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| | Phase transitions in the mantle 184
Raymond Jeanloz
doi:10.1038/340184a0
References | PDF (152K)
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| | A missing link for seeds? 185
Bill Chaloner
doi:10.1038/340185a0
References | PDF (175K)
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| | Motility factors on the march 186
R. M. Warn & P. Dowrick
doi:10.1038/340186a0
References | PDF (329K)
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In situ differentiation in magma 187
R. S. J. Sparks
doi:10.1038/340187a0
References | PDF (157K)
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| | Ice-age Amazon revisited 188
Paul A. Colinvaux
doi:10.1038/340188a0
References | PDF (283K)
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| | Pairs transported in phase 189
David Caplin
doi:10.1038/340189a0
References | PDF (277K)
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| | Generic trans-kingdom sex? 190
Scott E. Stachel & Patricia C. Zambryski
doi:10.1038/340190a0
References | PDF (296K)
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| | High-temperature superconductor lens 191
Roger Evans
doi:10.1038/340191a0
PDF (167K)
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| | Antarctic astronomy in the clear 192
David Lindley
doi:10.1038/340192a0
PDF (155K)
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| | Personal growth 192
David Jones
doi:10.1038/340192b0
PDF (155K)
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| | Scientific Correspondence | |
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| | Ubiquitin and dementia 193
R. J. MAYER, M. LANDON, F. J. DOHERTY, J. S. LOWE, G. P. REYNOLDS, E. J. BYRNE, G. G. LENNOX, D. JEFFERSON & R. B. GODWIN-AUSTEN
doi:10.1038/340193a0
References | PDF (135K)
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| | Silica polymorphs 193
HIDEO AOKI & SHINJI TSUNEYUKI
doi:10.1038/340193b0
References | PDF (135K)
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| | MIRAGE or no mirage? 193
R. L. MILLS, J. L. FARRELL & W. M. REIFF
doi:10.1038/340193c0
References | PDF (267K)
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| | Constraints on brain growth 194
ROBERT L. DUNBRACK & MALCOLM A. RAMSAY
doi:10.1038/340194a0
References | PDF (147K)
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| | Biological light guides 194
JAY M. ENOCH & V. LAKSHMINARAYANAN
doi:10.1038/340194b0
References | PDF (147K)
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| | Book Reviews | |
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| | Kissing and making up 195
W. C. McGrew reviews Peacemaking Among Primates
By
Frans de Waal
doi:10.1038/340195a0
PDF (122K)
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| | At the centre of things 196
Anthony W. Thomas reviews Models of the Nucleon: From Quarks to Soliton
By
Rajat K. Bhaduri
doi:10.1038/340196a0
PDF (124K)
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| | Internalizing 196
Pere Alberch reviews Morphogenesis and Evolution
By
Keith Stewart Thomson
doi:10.1038/340196b0
PDF (252K)
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| | On the surface 197
H. K. Christenson reviews Colloidal Systems and Interfaces
By
Sydney Ross & lan D. Morrison
doi:10.1038/340197a0
PDF (142K)
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| | Silicon vision 198
Igor Aleksander & Helen Morton reviews Analog VLSI and Neural Systems
By
Carver Mead
doi:10.1038/340198a0
PDF (181K)
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| | Articles |  |
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| | Geochemical consequences of in situ crystallization 199
Charles H. Langmuir
doi:10.1038/340199a0
Abstract & References | PDF (766K)
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| | Bacterial conjugative plasmids mobilize DNA transfer between bacteria and yeast 205
Jack A. Heinemann & George F. Sprague Jr
doi:10.1038/340205a0
Abstract & References | PDF (555K)
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| | Letters | |
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| | Demonstration of the phase coherence of the superconducting wavefunctions between conventional and high- T
c superconductors 210
M. N. Keene, T. J. Jackson & C. E. Gough
doi:10.1038/340210a0
First paragraph & References | PDF (227K)
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| | Dipole formation and collisions in a stratified fluid 212
G. J. F. van Heijst & J. B. Flór
doi:10.1038/340212a0
First paragraph & References | PDF (506K)
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| | Sediment supply and the development of the coarse surface layer in gravel-bedded rivers 215
William E. Dietrich, James W. Kirchner, Hiroshi Ikeda & Fujiko Iseya
doi:10.1038/340215a0
First paragraph & References | PDF (371K)
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| | A new, post-stishovite highpressure polymorph of silica 217
Yoshihiko Tsuchida & Takehiko Yagi
doi:10.1038/340217a0
First paragraph & References | PDF (395K)
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| | Organic materials in a martian meteorite 220
I. P. Wright, M. M. Grady & C. T. Pillinger
doi:10.1038/340220a0
First paragraph & References | PDF (370K)
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| | Neodymium and lead isotope evidence for enriched early Archaean crust in North America 222
Samuel A. Bowring, Janet E. King, Todd B. Housh, Clark E. Isachsen & Frank A. Podosek
doi:10.1038/340222a0
First paragraph & References | PDF (454K)
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| | A primitive seed-like structure and its implications for early gymnosperm evolution 225
J. Galtier & N. P. Rowe
doi:10.1038/340225a0
First paragraph & References | PDF (447K)
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| | Resource availability hypothesis of plant antiherbivore defence tested in a South African savanna ecosystem 227
J. P. Bryant, P. J. Kuropat, S. M. Cooper, K. Frisby & N. Owen-Smith
doi:10.1038/340227a0
First paragraph & References | PDF (360K)
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| | Limits on bilingualism 229
Anne Cutler, Jacques Mehler, Dennis Norris & Juan Segui
doi:10.1038/340229a0
First paragraph & References | PDF (211K)
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| | Primary structure and functional expression of the cardiac dihydropyridine-sensitive calcium channel 230
Atsushi Mikami, Keiji Imoto, Tsutomu Tanabe, Tetsuhiro Niidome, Yasuo Mori, Hiroshi Takeshima, Shuh Narumiya & Shosaku Numa
doi:10.1038/340230a0
First paragraph & References | PDF (493K)
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| | Induction of calcium currents by the expression of the  1-subunit of the dihydropyridine receptor from skeletal muscle 233
Edward Perez–Reyes, Haeyoung S. Kim, Antonio E. Lacerda, William Horne, Xiangyang Wei, David Rampe, Kevin P. Campbell, Arthur M. Brown & Lutz Birnbaumer
doi:10.1038/340233a0
First paragraph & References | PDF (494K)
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| | GTP-activated communication between distinct inositol 1,4,5-trisphosphate-sensitive and -insensitive calcium pools 236
Tarun K. Ghosh, Julienne M. Mullaney, Fahmy I. Tarazi & Donald L. Gill
doi:10.1038/340236a0
First paragraph & References | PDF (485K)
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| | Resident pulmonary lymphocytes expressing the  / T-cell receptor 239
Andrei Augustin, Ralph T. Kubo & Gek-Kee Sim
doi:10.1038/340239a0
First paragraph & References | PDF (389K)
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| | Repression of transcription mediated at a thyroid hormone response element by the v-erb-A oncogene product 242
Jan Sap, Alberto Muñoz, Jackie Schmitt, Henk Stunnenberg & Björn Vennström
doi:10.1038/340242a0
First paragraph & References | PDF (425K)
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| | A novel genetic system to detect protein–protein interactions 245
Stanley Fields & Ok-kyu Song
doi:10.1038/340245a0
First paragraph & References | PDF (235K)
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| | Corrigendum | |
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| | Corrigendum: An elF-4A-like protein is a suppressor of an Escherichia coli mutant defective in 5OS ribosomal subunit assembly 246
Kayoko Nishi, Francoise Morel-Deville, John W. B. Hershey, Terrance Leighton & Joachim Schnier
doi:10.1038/340246a0
PDF (134K)
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