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| | Dingell encounters feather wall 161
Mr John Dingell's committee in the US House of Representatives has predictably made very little headway in its inquiry into the immunology of transgenic mice. But it is too soon to celebrate a famous victory for science.
doi:10.1038/339161a0
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| | Deciding about bombs 161
There is just a week in which to find a Western compromise on nuclear weapons in Central Europe.
doi:10.1038/339161b0
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| | News | |
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| | Baltimore hearing ends without resolution 163
Alun Anderson
doi:10.1038/339163a0
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| | Quick imports scheme 163
K. S. Jayaraman
doi:10.1038/339163b0
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| | Industrial injury 163
Peter Coles
doi:10.1038/339163c0
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| | CEC wants to double the money 164
Peter Coles
doi:10.1038/339164a0
PDF (146K)
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| | SONDA lifts off 164
Ricardo Bonalume Neto
doi:10.1038/339164b0
PDF (146K)
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| | Does it work efficiently? 164
Alun Anderson
doi:10.1038/339164c0
PDF (146K)
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| | Just one research council? 165
Christine McGourty
doi:10.1038/339165a0
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| | Bottom of the spending league 165
Mary Mulvihill
doi:10.1038/339165b0
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| | Landsat to be bailed out? 166
Carol Ezzell
doi:10.1038/339166a0
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| | US-Japanese row continues 166
David Swinbanks
doi:10.1038/339166b0
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| | More money available 167
Tania Ewing
doi:10.1038/339167a0
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| | Bonn courts young and females 167
Steven Dickman
doi:10.1038/339167b0
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| | Efforts abandoned in Japan 167
David Swinbanks
doi:10.1038/339167c0
PDF (154K)
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| | Who will save the planet? 168
Joseph Palca & Christine McGourty
doi:10.1038/339168a0
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| | Student protests bed down 168
Vera Rich
doi:10.1038/339168b0
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| | Fire strikes Jackson Laboratory 169
Joseph Palca
doi:10.1038/339169a0
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| | Indian energy agency blasted 169
K. S. Jayaraman
doi:10.1038/339169b0
PDF (150K)
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| | Europeans unperturbed 169
Peter Coles
doi:10.1038/339169c0
PDF (150K)
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| | Correspondence | |
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| | How to define entropy 170
CHARLES KITTEL
doi:10.1038/339170a0
References | PDF (143K)
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| | Peer review? 170
GARETH L MORGAN
doi:10.1038/339170b0
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| | Not abandoned 170
JOHN D. BARROW
doi:10.1038/339170c0
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| | Moral responsibility 170
V. F. POLCARO & P. FARINELLA
doi:10.1038/339170d0
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| | Selfish academics? 170
PETER M. JOHNSON
doi:10.1038/339170e0
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| | Commentary |  |
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| | With dosimeter in the sarcophagus 171
On the third anniversary of the Chernobyl reactor accident, Nature's Moscow correspondent carried a dosimeter from Kiev to Pripyat and into the Chernobyl sarcophagus.
Yuri Kanin
doi:10.1038/339171a0
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| | News and Views |  |
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| | Understanding hydrogen bonds? 173
New measurements of simple complexes of hydrogen fluoride and nitrous oxide have thrown light on the properties of two quite distinct kinds of hydrogen bonds.
John Maddox
doi:10.1038/339173a0
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| | Shaping up for selective catalysis 174
John Dwyer
doi:10.1038/339174a0
References | PDF (276K)
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| | Must what goes up come down? 175
Richard G. M. Morris & David J. Willshaw
doi:10.1038/339175a0
References | PDF (286K)
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| | A tale of three cities 176
J. S. Jones
doi:10.1038/339176a0
References | PDF (273K)
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| | Anatomy of the magma reservoir 178
Ken C. Macdonald
doi:10.1038/339178a0
References | PDF (365K)
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| | Synthesis for a complex role 179
Bill Sugden
doi:10.1038/339179a0
References | PDF (332K)
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| | Ceramic microcoils sprung for action 179
doi:10.1038/339179b0
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| | No new fusion under the Sun 180
Bertil Wilner
doi:10.1038/339180a0
References | PDF (158K)
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| | Laser gain without inversion 181
Peter Knight
doi:10.1038/339181a0
PDF (150K)
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| | Neotropical African bees 181
Robert E. Page Jr
doi:10.1038/339181b0
References | PDF (275K)
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| | Dry drinking 182
David Jones
doi:10.1038/339182a0
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| | Scientific Correspondence | |
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| | Problems with the  -ray spectrum in the Fleischmann et al. experiments 183
R. D. PETRASSO, X. CHEN, K. W. WENZEL, R. R. PARKER, C. K. LI & C. FlORE
doi:10.1038/339183a0
References | PDF (388K)
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| | Fusion in from the cold? 185
RUSSELL SEITZ
doi:10.1038/339185a0
References | PDF (147K)
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| | Mössbauer cancer therapy doubts 185
D. J. BRENNER, C. R. GEARD & E. J. HALL
doi:10.1038/339185b0
References | PDF (285K)
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| | Surface-plasmon microscopy 186
W. HICKEL, D. KAMP & W. KNOLL
doi:10.1038/339186a0
References | PDF (155K)
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| | Erratum 186
doi:10.1038/339186b0
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| | Book Reviews | |
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| | Seeing things differently 187
Brian Rogers reviews James J. Gibson and the Psychology of Perception.
By
Edward S. Reed
doi:10.1038/339187a0
PDF (302K)
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| | Viral diversity 188
Stephen C. Inglis reviews RNA Genetics.
Edited by
Esteban Domingo & John J. & Paul HollandAhlquist
doi:10.1038/339188a0
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| | Changing places 189
Bernard Wood reviews A Theory of Human and Primate Evolution.
By
Colin P. Groves
doi:10.1038/339189a0
PDF (144K)
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| | The bright side 190
Desmond King-Hele reviews Is Science Necessary? Essays on Science & Scientists.
By
Max F. E. P. PerutzDutton
doi:10.1038/339190a0
PDF (147K)
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| | Togetherness 190
John Barrett reviews Coevolution of Fungi with Plants and Animals.
Edited by
K. A. D. L. PirozynskiHawksworth
doi:10.1038/339190b0
PDF (147K)
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| | Article |  |
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| | Structural plasticity broadens the specificity of an engineered protease 191
Roger Bone, Joy L. Silen & David A. Agard
doi:10.1038/339191a0
Abstract & References | PDF (644K)
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| | Letters | |
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| | Silicon carbide and the origin of interstellar carbon grains 196
M. Frenklach, C. S. Carmer & E. D. Feigelson
doi:10.1038/339196a0
First paragraph & References | PDF (384K)
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| | Concentration of sunlight to solar-surface levels using non-imaging optics 198
Philip Gleckman, Joseph O'Gallagher & Roland Winston
doi:10.1038/339198a0
First paragraph & References | PDF (351K)
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| | Direct observation of shape selectivity in zeolite ZSM-5 by magic-angle-spinning NMR 200
Michael W. Anderson & Jacek Klinowski
doi:10.1038/339200a0
First paragraph & References | PDF (414K)
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| | Magnetofossil dissolution in a palaeomagnetically unstable deep-sea sediment 203
Hojatollah Vali & Joseph L. Kirschvink
doi:10.1038/339203a0
First paragraph & References | PDF (560K)
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| | Tomographic image of the magma chamber at 12°50' N on the East Pacific Rise 206
M. S. Burnett, D. W. Caress & J. A. Orcutt
doi:10.1038/339206a0
First paragraph & References | PDF (332K)
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| | New pressure-induced structural transformations in silica obtained by computer simulation 209
Shinji Tsuneyuki, Yoshtto Matsui, Hideo Aoki & Masaru Tsukada
doi:10.1038/339209a0
First paragraph & References | PDF (369K)
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| | Evidence from mitochondrial DNA that African honey bees spread as continuous maternal lineages 211
H. Glenn Hall & K. Muralidharan
doi:10.1038/339211a0
First paragraph & References | PDF (416K)
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| | Neotropical Africanized honey bees have African mitochondrial DNA 213
Deborah Roan Smith, Orley R Taylor & Wesley M. Brown
doi:10.1038/339213a0
First paragraph & References | PDF (391K)
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| | Associative long-term depression in the hippocampus induced by hebbian covariance 215
Patric K. Stanton & Terrence J. Sejnowski
doi:10.1038/339215a0
First paragraph & References | PDF (494K)
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| | Local positional cues in the neuroepithelium guide retinal axons in embryonic Xenopus brain 218
William A. Harris
doi:10.1038/339218a0
First paragraph & References | PDF (544K)
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| | High-affinity binding of staphylococcal enterotoxins A and B to HLA-DR 221
John D. Fraser
doi:10.1038/339221a0
First paragraph & References | PDF (351K)
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| | Brefeldin A implicates egress from endoplasmic reticulum in class I restricted antigen presentation 223
Jed G. Nuchtern, Juan S. Bonifacino, William E. Biddison & Richard D. Klausner
doi:10.1038/339223a0
First paragraph & References | PDF (494K)
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| | Isolation of CD4-CD8-mycobacteria-reactive T lymphocyte clones from rheumatoid arthritis synovial fluid 226
Joseph Holoshttz, Samuel Strober, Frits Koning, John E. Coligan & Jacqueline De
Bruyn
doi:10.1038/339226a0
First paragraph & References | PDF (420K)
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| | A point mutation in the neu oncogene mimics ligand induction of receptor aggregation 230
David B. Weiner, Jing Liu & Mark I. Greene
doi:10.1038/339230a0
First paragraph & References | PDF (251K)
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| | Retinoic acid regulates growth hormone gene expression 231
Gabriela Bedo, Pilar Santisteban & Ana Aranda
doi:10.1038/339231a0
First paragraph & References | PDF (467K)
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In vitro correction of G o T mispairs to G o C pairs in nuclear extracts from human cells 234
Karin Wiebauer & Josef Jiricny
doi:10.1038/339234a0
First paragraph & References | PDF (365K)
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| | Product Reviews | |
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| | Avoiding false positives with PCR 237
The exquisite sensitivity of the polymerase chain reaction means DNA contamination can ruin an entire experiment. Tidiness and adherence to a strict set of protocols can avoid disaster.
S. Kwok & R. Higuchi
doi:10.1038/339237a0
References | PDF (264K)
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| | BioExpo on show 238
At next week's BioExpo in Paris, France, new products range from an automated loop inoculation device to a crystallized Tris buffer preparation
Cary Prince
doi:10.1038/339238a0
PDF (141K)
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