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Science, New Series, Vol. 252, No. 5010, May 31, 1991


Previous Issue: New Series, Vol. 252, No. 5009, May 24, 1991
Next Issue: New Series, Vol. 252, No. 5011, Jun. 7, 1991


Front Matter (15 pp.)
The Best of Times, The Worst of Times, p. 1229
Daniel E. Koshland, Jr.


Letters
AIDS Biosafety, p. 1231
Ronald C. Desrosiers; Eric Hunter
Monsanto Dioxin Studies, p. 1231
James H. Senger
Dendrimer Research, p. 1231
Donald A. Tomalia
Cost of Corrosion, p. 1232
Richard E. Ricker
RNA World, p. 1232
Steven A. Benner; Andrew D. Ellington


Policy Forum
Adjusting the 1990 Census, pp. 1233-1236
David A. Freedman


ScienceScope, p. 1241
David P. Hamilton


News and Comment
Healy Gets Off to a Fast Start, pp. 1242-1244
Joseph Palca
MRI-Safety Issues Stimulate Concern, p. 1244
Lisa Bain
Chernobyl's Cloud: A Lighter Shade of Gray, pp. 1245-1246
Felix Eijgenraam
NRC Panel: Abolish Mandatory Retirement, p. 1246
Eliot Marshall
Environmentalists: Ban the (Population) Bomb, p. 1247
Joe Alper
Britain Picks Wrong Way to Beat the Japanese, p. 1248
Jane Bird


Briefings
Berg to Head NIH Genome Committee, p. 1249
Faye Flam
Jekyll and Hyde GAO?, p. 1249
Faye Flam
The Graying of Physics, p. 1249
Faye Flam
Astro Redux, p. 1249
Faye Flam


Research News
How Parents Make Their Mark on Genes, pp. 1250-1251
Michelle Hoffman
The Incredible Shrinking Tunneling Microscope, p. 1252
Ivan Amato
Cell Cycle Research: Down to the Nitty Gritty, pp. 1253-1254
Michael Balter
The Stately Cycles of Ancient Climate, pp. 1254-1255
Richard A. Kerr
Finding DNA Sequencing Errors, pp. 1255-1256
Leslie Roberts
Rhino Biology: Keeping Tabs on an Endangered Species, pp. 1256-1257
Yvonne Baskin


The Potential for Ozone Depletion in the Arctic Polar Stratosphere, pp. 1260-1266
W. H. Brune; J. G. Anderson; D. W. Toohey; D. W. Fahey; S. R. Kawa; R. L. Jones; D. S. McKenna; L. R. Poole

The Response of Electrons to Structural Changes, pp. 1266-1272
Kenneth B. Wiberg; Christopher M. Hadad; Curt M. Breneman; Keith E. Laidig; Mark A. Murcko; Teresa J. LePage

Electronic Data Publishing and GenBank, pp. 1273-1277
Michael J. Cinkosky; James W. Fickett; Paul Gilna; Christian Burks


Research Article
Atomic Structure of Adenosine Deaminase Complexed with a Transition-State Analog: Understanding Catalysis and Immunodeficiency Mutations, pp. 1278-1284
David K. Wilson; Frederick B. Rudolph; Florante A. Quiocho


Reports
Protein Electron Transfer Rates Set by the Bridging Secondary and Tertiary Structure, pp. 1285-1288
D. N. Beratan; J. N. Betts; J. N. Onuchic
Compressibility of Solid C 60, pp. 1288-1290
John E. Fischer; Paul A. Heiney; Andrew R. McGhie; William J. Romanow; Arnold M. Denenstein; John P. McCauley, Jr.; Amos B. Smith III
A Neuron-Silicon Junction: A Retzius Cell of the Leech on an Insulated-Gate Field-Effect Transistor, pp. 1290-1293
Peter Fromherz; Andreas Offenhäusser; Thomas Vetter; Jürgen Weis
Spectroscopic Observations of Bright and Dark Emission Features on the Night Side of Venus, pp. 1293-1296
J. F. Bell III; D. Crisp; P. G. Lucey; T. A. Ozoroski; W. M. Sinton; S. C. Willis; B. A. Campbell
Identification of the DNA Binding Site for NGFI-B by Genetic Selection in Yeast, pp. 1296-1300
Thomas E. Wilson; Timothy J. Fahrner; Mark Johnston; Jeffrey Milbrandt
Proximate Constraints on the Evolution of Egg Size, Number, and Total Clutch Mass in Lizards, pp. 1300-1302
Barry Sinervo; Paul Licht
NMR Studies of the Structure and Dynamics of Membrane-Bound Bacteriophage Pf1 Coat Protein, pp. 1303-1305
Ki-Joon Shon; Yongae Kim; Luiz A. Colnago; Stanley J. Opella
Membrane-Mediated Assembly of Filamentous Bacteriophage Pf1 Coat Protein, pp. 1305-1308
Raman Nambudripad; Wilhelm Stark; Stanley J. Opella; Lee Makowski
Separation of IL-4 Production from Th Cell Proliferation by an Altered T Cell Receptor Ligand, pp. 1308-1310
Brian D. Evavold; Paul M. Allen
Induction of Plasmodium falciparum Transmission-Blocking Antibodies by Recombinant Vaccinia Virus, pp. 1310-1313
David C. Kaslow; Stuart N. Isaacs; Isabella A. Quakyi; Robert W. Gwadz; Bernard Moss; David B. Keister
Two- Rather Than Three-Dimensional Representation of Saccades in Monkey Superior Colliculus, pp. 1313-1315
A. John van Opstal; Klaus Hepp; Bernhard J. M. Hess; Dominik Straumann; Volker Henn
Neuronal Activity in Narcolepsy: Identification of Cataplexy-Related Cells in the Medial Medulla, pp. 1315-1318
Jerome M. Siegel; Robert Nienhuis; Heidi M. Fahringer; Richard Paul; Priyattam Shiromani; William C. Dement; Emmanuel Mignot; Charles Chiu
Cloning, Expression, and Gene Structure of a G Protein-Coupled Glutamate Receptor from Rat Brain, pp. 1318-1321
Khaled M. Houamed; Joseph L. Kuijper; Teresa L. Gilbert; Betty A. Haldeman; Patrick J. O'Hara; Eileen R. Mulvihill; Wolfhard Almers; Frederick S. Hagen


Technical Comments
CD14 and Immune Response to Lipopolysaccharide, pp. 1321-1322
Charles R. Maliszewski; Samuel D. Wright
Receptor-Mediated Activation of Immunodeficiency Viruses in Viral Fusion, pp. 1322-1323
Jonathan S. Allan; John P. Moore; Jane A. McKeating; Robin A. Weiss; Paul R. Clapham; Quentin J. Sattentau


Book Reviews
A Familiar Mingling, pp. 1324-1325
Learning Together. A History of Coeducation in American Schools.
David Tyack; Elisabeth Hansot
Review author[s]: Sally Schwager
Nuclear Reactions, pp. 1325-1326
Heavy Ion Reactions. Lecture Notes. Vol. 1, The Elementary Processes. Part 1, Elastic and Inelastic Reactions.
Ricardo A. Broglia; Aage Winther
Heavy Ion Reactions. Lecture Notes. Vol. 1, The Elementary Processes. Part 2, Transfer Reactions.
Ricardo A. Broglia; Aage Winther
Review author[s]: Ray Satchler
Neutrons in a Bottle, p. 1326
The Physics of Ultracold Neutrons.
V. K. Ignatovich
Review author[s]: William A. Lanford
Cryobiology, pp. 1326-1327
Insects at Low Temperature.
Richard E. Lee, Jr.; David L. Denlinger
Review author[s]: Jeffrey R. Hazel
Books Received, pp. 1327-1328


Back Matter (16 pp.)

Previous Issue: New Series, Vol. 252, No. 5009, May 24, 1991
Next Issue: New Series, Vol. 252, No. 5011, Jun. 7, 1991



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