| | Opinion |  |
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| | Who should call the shots? 515
Britain's environment research council has an impossible burden and an inadequate budget. It should return responsibility where it belongs, with politicians.
doi:10.1038/313515a0
PDF (286K)
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| | Star wars bargain 516
The US president's science adviser should learn to temper his loyalty with proper embarrassment.
doi:10.1038/313516a0
PDF (156K)
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| | Loyal Keyworth 516
The United States cannot expect next month's Geneva talks to succeed without a bargain.
doi:10.1038/313516b0
PDF (156K)
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| | News | |
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| | US shuttle: NASA takes gloomy view of prospects 517
Tim Beardsley
doi:10.1038/313517a0
PDF (141K)
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| | Academics' doubts on research plan 517
Philip Campbell
doi:10.1038/313517b0
PDF (141K)
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| | Ariane up again 517
Robert Walgate
doi:10.1038/313517c0
PDF (141K)
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| | UNESCO: US goes back on promise 518
Stephen Budiansky
doi:10.1038/313518a0
PDF (146K)
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| | Casualties in sight 518
doi:10.1038/313518b0
PDF (146K)
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| | Japanese students: Choices change 518
Alun Anderson
doi:10.1038/313518c0
PDF (146K)
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| | Biotechnology: US quarantine rules attacked 519
Stephen Budiansky
doi:10.1038/313519a0
PDF (148K)
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| | CERN economics: Particle physics pays (official) 519
Robert Walgate
doi:10.1038/313519b0
PDF (148K)
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| | Paris museum: Discovery for the people 520
Robert Walgate
doi:10.1038/313520a0
PDF (143K)
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| | French universities: Appointments in doldrums 520
Robert Walgate
doi:10.1038/313520b0
PDF (143K)
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| | Southern California degrees: Machine-made grades fraud? 521
Sandra Blakeslee
doi:10.1038/313521a0
PDF (147K)
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| | Research councils: Sterling worries 521
doi:10.1038/313521b0
PDF (147K)
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| | Hungarian computers: East Europe's freewheeling 521
Vera Rich
doi:10.1038/313521c0
PDF (147K)
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| | Poland: Higher Education law revised 522
Vera Rich
doi:10.1038/313522a0
PDF (145K)
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| | Research animals: Tiger salamanders perpetuated 522
Tim Beardsley
doi:10.1038/313522b0
PDF (145K)
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| | UK environment research: Council to contract on centre 523
doi:10.1038/313523a0
PDF (151K)
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| | Correspondence | |
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| | Testing for AIDS 524
PETER L. PAGE
doi:10.1038/313524a0
PDF (141K)
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| | Thinking machines 524
J. F. CRAWFORD
doi:10.1038/313524b0
PDF (141K)
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| | Numerology 524
PETER STANBURY
doi:10.1038/313524c0
PDF (141K)
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| | Back to Kekulé 524
F.M. AKEROYD
doi:10.1038/313524d0
References | PDF (141K)
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| | Human embryos 524
J.R. BAKER
doi:10.1038/313524e0
PDF (141K)
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| | Commentary |  |
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| | US views of British university research 525
A university researcher with long experience of British universities, but now working in the United States, reflects on the differences between the two systems and advocates modest reforms.
Alan R. Katritzky
doi:10.1038/313525a0
PDF (394K)
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| | News and Views |  |
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| | Three-dimensional electron lattice 527
At low temperatures and in strong magnetic fields, electrons (in a semi-conductor) can indeed be made to crystallize into a lattice, confirming a prediction of Wigner half a century ago.
John Maddox
doi:10.1038/313527a0
PDF (137K)
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| | Meteorites: Deep-sea stony spherules and the primordial nebula 528
Derek W.G. Sears
doi:10.1038/313528a0
References | PDF (154K)
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| | Plant physiology: Ion channels in plant cells 529
E.A.C. MacRobbie
doi:10.1038/313529a0
References | PDF (145K)
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| | [News and Views 'picture story'] 529
doi:10.1038/313529b0
PDF (145K)
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| | Prehistoric art: Ice Age drawings on open rock faces in the Pyrenees 530
Paul G. Bahn
doi:10.1038/313530a0
References | PDF (363K)
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| | Cell proliferation: Interferons and oncogenes 531
Mike Clemens
doi:10.1038/313531a0
References | PDF (293K)
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| | Palaeoanthropology: Primate and human phylogeny 532
Eric Delson
doi:10.1038/313532a0
PDF (289K)
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| | 100 years ago 533
doi:10.1038/313533a0
PDF (144K)
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| | Sedimentology: Hummocky sand deposits generated by storms at sea 533
I.N. McCave
doi:10.1038/313533b0
References | PDF (144K)
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| | Erratum |  |
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| | Errata 533
doi:10.1038/313533c0
PDF (144K)
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| | Scientific Correspondence | |
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| | Intergalactic thermonuclear  -ray line 534
DONALD D. CLAYTON
doi:10.1038/313534a0
References | PDF (139K)
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| | The transmission of AIDS 534
GERALD A. AHRONHEIM
doi:10.1038/313534b0
References | PDF (139K)
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| | Bird territory and weight gain 534
R. WHITTINGTON
doi:10.1038/313534c0
References | PDF (139K)
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| | Review Article | |
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| | The record of global pollution in polar snow and ice 535
Eric W. Wolff & David A. Peel
doi:10.1038/313535a0
Abstract & References | PDF (699K)
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| | Articles | |
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| | Lower mantle heterogeneity, dynamic topography and the geoid 541
Bradford H. Hager, Robert W. Clayton, Mark A. Richards, Robert P. Comer & Adam M. Dziewonski
doi:10.1038/313541a0
Abstract & References | PDF (851K)
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| | Segmental distribution of bithorax complex proteins during Drosophila development 545
Philip A. Beachy, Stephen L. Helfand & David S. Hogness
doi:10.1038/313545a0
Abstract & References | PDF (969K)
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| | Characterization of the branch site in lariat RNAs produced by splicing of mRNA precursors 552
Maria M. Konarska, Paula J. Grabowski, Richard A. Padgett & Phillip A. Sharp
doi:10.1038/313552a0
Abstract & References | PDF (1,187K)
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| | Letters | |
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| | Pavo XD-10, an X-ray QSO with extended optical structure 557
R. Gilmozzi, J. V. Wall, P. G. Murdin, P. R. Jorden, D. J. Thorne, I. G. van Breda & J. A. Peacock
doi:10.1038/313557a0
First paragraph & References | PDF (367K)
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| | Low-frequency fluctuations of the electric field in the equatorial ionosphere 559
V. L. Patel & Pablo Lagos
doi:10.1038/313559a0
First paragraph & References | PDF (231K)
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| | Thickness of ice on perennially frozen lakes 561
Christopher P. McKay, Gary D. Clow, Robert A. Wharton Jr & Steven W. Squyres
doi:10.1038/313561a0
First paragraph & References | PDF (233K)
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| | Hummocky cross-stratification is not produced purely under progressive gravity waves 562
Philip A. Allen
doi:10.1038/313562a0
First paragraph & References | PDF (311K)
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| | Cd and Mn in the Alboran Sea and adjacent North Atlantic: geochemical implications for the Mediterranean 565
P. J. Statham, J. D. Burton & D. J. Hydes
doi:10.1038/313565a0
First paragraph & References | PDF (333K)
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| | A mid-Mesozoic extension across Central Asia? 567
William Leith
doi:10.1038/313567a0
First paragraph & References | PDF (489K)
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| | Late Holocene deforestation and tree regeneration in the forest−tundra of Québec 570
Serge Payette & Réjean Gagnon
doi:10.1038/313570a0
First paragraph & References | PDF (330K)
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| | Ice-free cryopreservation of mouse embryos at -196 °C by vitrification 573
W. F. Rall & G. M. Fahy
doi:10.1038/313573a0
First paragraph & References | PDF (361K)
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| | Retinotopic order appears before ocular separation in developing visual pathways 575
Glen Jeffery
doi:10.1038/313575a0
First paragraph & References | PDF (304K)
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| | Functional innervation of cultured hippocampal neurones by cholinergic afferents from co-cultured septal explants 577
B. H. Gahwiler & D. A. Brown
doi:10.1038/313577a0
First paragraph & References | PDF (406K)
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| | Light-induced reduction of cytoplasmic free calcium in retinal rod outer segment 579
King-Wai Yau & Kei Nakatani
doi:10.1038/313579a0
First paragraph & References | PDF (467K)
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| | Effects on the photoresponse of calcium buffers and cyclic GMP incorporated into the cytoplasm of retinal rods 582
H. R. Matthews, V. Torre & T. D. Lamb
doi:10.1038/313582a0
First paragraph & References | PDF (451K)
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| | Cyclic GMP can increase rod outer-segment light-sensitive current 10-fold without delay of excitation 585
W. H. Cobbs & E. N. Pugh Jr
doi:10.1038/313585a0
First paragraph & References | PDF (382K)
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| | Na channels in skeletal muscle concentrated near the neuromuscular junction 588
Kurt G. Beam, John H. Caldwell & Donald T. Campbell
doi:10.1038/313588a0
First paragraph & References | PDF (410K)
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| | Autonomous chaotic behaviour of the slime mould Dictyostelium discoideum predicted by a model for cyclic AMP signalling 590
J. L. Martiel & A. Goldbeter
doi:10.1038/313590a0
First paragraph & References | PDF (346K)
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| | Ontogeny of the T-cell antigen receptor within the thymus 592
H. Ralph Snodgrass, Pawel Kisielow, Michael Kiefer, Michael Steinmetz & Harald von Boehmer
doi:10.1038/313592a0
First paragraph & References | PDF (655K)
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| | Expression of a minichromosomal variant surface glycoprotein gene in Trypanosoma brucei
595
Victoria Rothwell, Robert Aline Jr, Marilyn Parsons, Nina Agabian & Kenneth Stuart
doi:10.1038/313595a0
First paragraph & References | PDF (422K)
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| | Close link between reduction of c-myc expression by interferon and G0/G1 arrest 597
Miriam Einat, Dalia Resnitzky & Adi Kimchi
doi:10.1038/313597a0
First paragraph & References | PDF (501K)
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| | Specific expression of an elastase−human growth hormone fusion gene in pancreatic acinar cells of transgenic mice 600
David M. Ornitz, Richard D. Palmiter, Robert E. Hammer, Ralph L. Brinster, Galvin H. Swift & Raymond J. MacDonald
doi:10.1038/313600a0
First paragraph & References | PDF (442K)
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| | Corrigendum | |
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| | Flexure of the continental lithosphere beneath Apennine and Carpathian foredeep basins 602
L. Royden & G. D. Karner
doi:10.1038/313602a0
PDF (180K)
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| | Matters Arising | |
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| | Molecular conformations in surfactant micelles 603
F. M. MENGER
doi:10.1038/313603a0
References | PDF (131K)
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| | Molecular conformations in surfactant micelles 603
KEN A. DILL
doi:10.1038/313603b0
References | PDF (263K)
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| | Sex and frequency of gene conversions in meiosis 604
KEITH R. WILLISON
doi:10.1038/313604a0
References | PDF (137K)
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| | Book Reviews | |
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| | Gardner's choice 605
Walter Gratzer reviews The Sacred Beetle and Other Great Essays in Science.
Edited by
Martin Gardner
doi:10.1038/313605a0
PDF (157K)
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| | [Book Reviews 'picture story'] 605
doi:10.1038/313605b0
PDF (157K)
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| | A mind ever oil the stretch 606
Robert Siegfried reviews Thomas Beddoes MD 1760-1808: Chemist, Physician, Democrat
By
Dorothy A. Stansfield
doi:10.1038/313606a0
PDF (140K)
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| | Cosmic magnetism 606
Leon Mestel reviews Magnetic Fields in Astrophysics
By
Ya. B. Zeldovich, A. A. Ruzmaikin & D. D. Sokoloff
doi:10.1038/313606b0
PDF (140K)
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| | Penrose's way with relativity 607
Abhay Ashtekar reviews Spinors and Space-Time. Vol. 1 Two-Spinor Calculus and Relativistic Fields
By
R. Penrose & W. Rindler
doi:10.1038/313607a0
PDF (279K)
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| | Pronouncing on the language 608
Joanna Czechowska reviews The English Language
By
Robert Burchfield
doi:10.1038/313608a0
PDF (143K)
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| | African past 608
A.C. Hamilton reviews Southern African Prehistory and Paleoen vironments.
Edited by
Richard G. Klein
doi:10.1038/313608b0
PDF (277K)
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| | Water from a stone 609
Peter J. Smith reviews Inscrutable Earth: Explorations into the Science of Earth
By
Ronald B. Parker
doi:10.1038/313609a0
PDF (140K)
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| | On the breeze 609
Miriam Rothschild reviews Milkweed Butterflies: Their Cladistics and Biology
By
P.R. Ackery & R.I. Vane-Wright
doi:10.1038/313609b0
PDF (140K)
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| | Accommodation in the Upper House 610
W.H. Brock reviews All Scientists Now: The Royal Society in the Nineteenth Century
By
Marie Boas Hall
doi:10.1038/313610a0
PDF (109K)
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