| | Opinion |  |
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| | More extraterrestrial hoopla 549
The grand new space policy of the United States is philosophically coherent but intellectually bankrupt, promising little of practical benefit to
those left on the Earth.
doi:10.1038/331549a0
PDF (135K)
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| | News | |
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| | Reagan's new space policy contains little science 550
Joseph Palca
doi:10.1038/331550a0
PDF (145K)
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| | ESA and NASA get it together 550
Peter Coles
doi:10.1038/331550b0
PDF (145K)
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| | Military muscle 550
doi:10.1038/331550c0
PDF (145K)
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| | "Profoundly disappointing" UK science budget allocated 551
Simon Hadlington
doi:10.1038/331551a0
PDF (145K)
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| | NERC cuts back 551
doi:10.1038/331551b0
PDF (145K)
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| | Three more centres 551
doi:10.1038/331551c0
PDF (145K)
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| | Japanese AIDS scandal over trials and marketing of coagulants 552
David Swinbanks
doi:10.1038/331552a0
PDF (148K)
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| | UK health research threatened by "oppressive" new contracts 552
Simon Hadlington
doi:10.1038/331552b0
PDF (148K)
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| | Ireland's new biotechnology venture puts marketing first 553
Charles Wenz
doi:10.1038/331553a0
PDF (137K)
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| | Somalis reprieved 553
Joseph Palca
doi:10.1038/331553b0
PDF (137K)
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| | New biology centre 553
Simon Hadlington
doi:10.1038/331553c0
PDF (137K)
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| | AIDS drug patent 553
David Lindley
doi:10.1038/331553d0
PDF (137K)
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| | Ministers say yes 553
Peter Coles
doi:10.1038/331553e0
PDF (137K)
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| | Presidential election casts shadow on AAAS annual jamboree 554
Alun Anderson
doi:10.1038/331554a0
PDF (145K)
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| | Californians thinking bigger in neuroscience for the 1990s 554
Marcia Barinaga
doi:10.1038/331554b0
PDF (145K)
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| | Boost for industrially relevant research in India 555
K. S. Jayaraman
doi:10.1038/331555a0
PDF (142K)
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| | Soviet demographers come clean 555
Vera Rich
doi:10.1038/331555b0
PDF (142K)
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| | Embryo research criminal 555
Steven Dickman
doi:10.1038/331555c0
PDF (142K)
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| | DNA fingerprinting to be used for British immigrants? 556
Peter Newmark
doi:10.1038/331556a0
PDF (146K)
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| | Mystery of bird deaths in Assam 556
K. S. Jayaraman
doi:10.1038/331556b0
PDF (146K)
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| | Liver more and UC labs join forces in mass spectroscopy 557
Marcia Barinaga
doi:10.1038/331557a0
PDF (142K)
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| | Note worth the plastic it's printed on 557
Charles Morgan
doi:10.1038/331557b0
PDF (142K)
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| | SDI hails success in space test 557
Joseph Palca
doi:10.1038/331557c0
PDF (142K)
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| | Correspondence | |
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| | Objectivity in science 558
COLIN A. RUSSELL
doi:10.1038/331558a0
References | PDF (148K)
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| | Editorial policy 558
A. J. DESSLER
doi:10.1038/331558b0
References | PDF (148K)
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| | News and Views |  |
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| | Beating the quantum limits (cont'd) 559
Heisenberg's Uncertainty Principle is for many an irksome constraint on the freedom to make measurements accurately. Can the constraint be overturned?
John Maddox
doi:10.1038/331559a0
PDF (141K)
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| | The lifeblood of language 560
John C. Marshall
doi:10.1038/331560a0
References | PDF (285K)
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| | Welcome to Daedalus 560
doi:10.1038/331560b0
PDF (148K)
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| | In search of young galaxies 561
Joseph Silk
doi:10.1038/331561a0
References | PDF (295K)
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| | A case of mistaken non-identity 562
Carel Mulder
doi:10.1038/331562a0
References | PDF (324K)
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| | Correspondence | |
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| | 100 years ago: Mechanism of the flight of birds 562
doi:10.1038/331562b0
PDF (158K)
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| | News and Views | |
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| | The CITES conservation circus 563
N. Mrosovsky
doi:10.1038/331563a0
PDF (181K)
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| | Trapped electron pairs 564
Peter P. Edwards
doi:10.1038/331564a0
References | PDF (262K)
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| | The dates of Eden 565
Chris Stringer
doi:10.1038/331565a0
References | PDF (271K)
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| | The case of the speckled partner 566
E. S. Phinney
doi:10.1038/331566a0
References | PDF (414K)
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| | Supernova 1987A: one year old 567
David Lindley
doi:10.1038/331567a0
PDF (149K)
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| | Myosin filaments on the move 568
J. V. Small
doi:10.1038/331568a0
References | PDF (287K)
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| | Encapsulated breath 569
David Jones
doi:10.1038/331569a0
PDF (151K)
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| | Scientific Correspondence | |
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| | The molecular nature of the cystic fibrosis antigen 570
JOSEF BRüGGEN, LAJOS TARCSAY, NICO CERLETTI, KAREL ODNIK, MARKUS RUTISHAUSER, GEORG HOLLÄNDER & CLEMENS SORG
doi:10.1038/331570a0
References | PDF (149K)
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| | Eustatic sea-level change 570
ANTONY R. WYATT
doi:10.1038/331570b0
References | PDF (149K)
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| | Any old iron? 570
JOHN GRIBBIN
doi:10.1038/331570c0
PDF (149K)
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| | Book Reviews |  |
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| | Neuroscience: a new era? 571
H. B. Barlow reviews Neural Darwinism: The Theory of Neuronal Group Selection
By
Gerald M. Edelman
doi:10.1038/331571a0
PDF (163K)
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| | Digging against the clock 572
Paul G. Bahn reviews Recent Archaeological Discoveries in Japan
Edited by
Tsuboi Kiyotari
doi:10.1038/331572a0
PDF (249K)
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| | Fun in the night 572
Bruce Margon reviews First Light: The Search for the Edge of the Universe
By
Richard Preston
doi:10.1038/331572b0
PDF (249K)
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| | Nuclear power 573
J. R. S. Finecham reviews Beyond the Gene: Cytoplasmic Inheritance and the Struggle for Authority in Genetics
By
Jan Sapp
doi:10.1038/331573a0
PDF (335K)
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| | News | |
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| | Back-Breaking 573
doi:10.1038/331573b0
PDF (204K)
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| | Commentary | |
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| | A better way to control pollution 575
Pollutants emitted into the air can damage the environment far from their original sources. Control strategies can best be formulated through use of optimization techniques.
Dick Derwent
doi:10.1038/331575a0
References | PDF (432K)
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| | Articles |  |
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| | Manganese—chromium isotope systematics and the development of the
early Solar System 579
Jean-Louis Birck & Claude J. Allègre
doi:10.1038/331579a0
Abstract & References | PDF (588K)
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| | Positron emission tomographic studies of the cortical anatomy of single-word processing 585
S. E. Petersen, P. T. Fox, M. I. Posner, M. Mintun & M. E. Raichle
doi:10.1038/331585a0
Abstract & References | PDF (603K)
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| | Letters | |
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| | ESO400-G43, a forming galaxy? 589
Nils Bergvall & Steven Jörsäter
doi:10.1038/331589a0
First paragraph & References | PDF (360K)
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| | Planetographic clustering of low-altitude
impulsive electric signals
in the night ionosphere of Venus 591
C. T. Russell, M. von Dornum & F. L. Scarf
doi:10.1038/331591a0
First paragraph & References | PDF (425K)
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| | Observations of the sodium layer at high latitudes in summer 594
U. von Zahn, G. Hansen & H. Kurzawa
doi:10.1038/331594a0
First paragraph & References | PDF (334K)
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| | Structure of (CuO)2 double layers in superconducting YBa2Cu3O7 596
H. W. Zandbergen, R. Gronsky, K. Wang & G. Thomas
doi:10.1038/331596a0
First paragraph & References | PDF (590K)
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| | Structure of K+(cryptand[2.2.2J) electride and evidence for trapped electron pairs
599
R. H. Huang, M. K. Faber, K. J. Moeggenborg, D. L. Ward & J. L. Dye
doi:10.1038/331599a0
First paragraph & References | PDF (367K)
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| | The siting, energetics and mobility of saturated hydrocarbons inside zeolitic cages: methane in zeolite Y 601
Subramanian Yashonath, John M. Thomas, Andreas K. Nowak & Anthony K. Cheetham
doi:10.1038/331601a0
First paragraph & References | PDF (508K)
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| | Fractionation of nitrogen isotopes in a synthetic diamond of mixed crystal habit
604
S. R. Boyd, C. T. Pillinger, H. J. Milledge, M. J. Mendelssohn & M. Seal
doi:10.1038/331604a0
First paragraph & References | PDF (503K)
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| | Atmospheric wet sulphate deposition and lakewater chemistry 607
T. J. Sullivan, J. M. Eilers, M. R. Church, D. J. Blick, K. N. Eshleman, D. H. Landers & M. S. DeHaan
doi:10.1038/331607a0
First paragraph & References | PDF (348K)
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| | CO2 record in the Byrd ice core 50,000−5,000 years bp 609
A. Neftel, H. Oeschger, T. Staffelbach & B. Stauffer
doi:10.1038/331609a0
First paragraph & References | PDF (356K)
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| | Impact frustration of the origin of life 612
Kevin A. Maher & David J. Stevenson
doi:10.1038/331612a0
First paragraph & References | PDF (342K)
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| | Thermoluminescence dating of Mousterian Troto-Cro-Magnon' remains from Israel and the origin of modern man 614
H. Valladas, J. L. Reyss, J. L. Joron, G. Valladas, O. Bar-Yosef & B. Vandermeersch
doi:10.1038/331614a0
First paragraph & References | PDF (339K)
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| | Pattern of covariation between life-history traits of European birds 616
Bernt-Erik Sæther
doi:10.1038/331616a0
First paragraph & References | PDF (246K)
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| | Evidence for a spectral basis of texture perception in bat sonar 617
Sabine Schmidt
doi:10.1038/331617a0
First paragraph & References | PDF (337K)
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| | Comparison of simian immunodeficiency virus isolates 619
Harry W. Kestler III, Yen Li, Yathirajulu M. Naidu, Carole V. Butler, Michael F. Ochs, Gerlinde Jaenel, Norval W. King, Muthiah D. Daniel & Ronald C. Desrosiers
doi:10.1038/331619a0
First paragraph & References | PDF (369K)
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| | Comparison of simian immunodeficiency virus isolates 621
M. ESSEX & P. KANKI
doi:10.1038/331621a0
References | PDF (260K)
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| | An H+-ATPase in opposite plasma membrane domains in kidney epithelial cell subpopulations 622
Dennis Brown, Sheldon Hirscht & Stephen Gluck
doi:10.1038/331622a0
First paragraph & References | PDF (440K)
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| | ICAM, an adhesion ligand of LFA-1, is homologous to the neural cell adhesion molecule NCAM 624
David Simmons, Malegapuru W. Makgoba & Brian Seed
doi:10.1038/331624a0
First paragraph & References | PDF (552K)
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| | The adult T-cell receptor 5-chain is diverse and distinct from that of fetal thymocytes 627
John Francis Elliott, Edwin P. Rock, Phillip A. Patten, Mark M. Davis & Yueh-hsiu Chien
doi:10.1038/331627a0
First paragraph & References | PDF (679K)
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| | Transposon-induced deletions in unc-22 of C. elegans associated with almost
normal gene activity 631
Jane E. Kiff, Donald G. Moerman, Lawrence A. Schriefer & Robert H. Waterston
doi:10.1038/331631a0
First paragraph & References | PDF (380K)
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| | Heterologous expression of a bacterial haemoglobin improves the growth properties of recombinant Escherichia coli
633
Chaitan Khosla & James E. Bailey
doi:10.1038/331633a0
First paragraph & References | PDF (326K)
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| | Expression of the putative Duchenne muscular dystrophy gene in differentiated myogenic cell cultures and in the brain 635
Uri Nudel, Kenneth Robzyk & David Yaffe
doi:10.1038/331635a0
First paragraph & References | PDF (421K)
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| | Product Reviews | |
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| | Capillary zone electrophoresis-MS 639
R. D. Smith & H. R. Udseth
doi:10.1038/331639a0
First paragraph & References | PDF (284K)
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| | Spectroscopy at Pittcon 640
Carol Ezzell
doi:10.1038/331640a0
PDF (460K)
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