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Science, New Series, Vol. 262, No. 5137, Nov. 19, 1993


Previous Issue: New Series, Vol. 262, No. 5136, Nov. 12, 1993
Next Issue: New Series, Vol. 262, No. 5138, Nov. 26, 1993


Front Matter (23 pp.)
Editorial: Unfunded Federal Environmental Mandates, p. 1191
Philip H. Abelson


Letters
Tropical Poison Frogs, p. 1193
Charles W. Myers; John W. Daly
Peer Review in the Czech Republic, pp. 1193-1194
Vaclav Paces; Vladimir Viklicky; Steven Dickman
Misconduct in Science, pp. 1194-1195
Donald E. Buzzelli; Roland W. Schmitt
Proton Decay Interest, p. 1195
David B. Cline
Caltech Biology in Perspective, pp. 1195-1196
Lily E. Kay


Corrections and Clarifications: Minorities Move from Lab Rats to Policy Wonks, p. 1196
Corrections and Clarifications: Rocky Road for Federal Research Inc., p. 1196
ScienceScope, p. 1199
Richard Stone


News and Comment
Can Russia Slim Down to Survive?, pp. 1200-1202
Peter Aldhous
ORI Drops Gallo Case in Legal Dispute, pp. 1202-1203
Christopher Anderson
Survey Tracks Misconduct, to an Extent, pp. 1203-1204
Christopher Anderson
Europeans Get Into Festival Spirit, p. 1204
Peter Coles
German HIV-Blood Scandal Reveals Flaws in the System, p. 1205
Peter Aldhous
Astronomy Funding Goes South of the Border, p. 1206
John Travis


Random Samples, p. 1207
Karen Fox


Research News
Cell Biologists Explore 'Tiny Caves', pp. 1208-1209
John Travis
Neuroscientists Reach a Critical Mass in Washington, pp. 1210-1212
Jean Marx; Joshua Fischman; Marcia Barinaga
Transgenic Mice Display a Class (Switching) Act, pp. 1212-1213
Peter Aldhous


Policy Forums
The Remaining Stocks of Smallpox Virus Should Be Destroyed, pp. 1223-1224
Brian W. J. Mahy; Jeffrey W. Almond.; Kenneth I. Berns; Robert M. Chanock; Dmitry K. Lvov; Ralf F. Pettersson; Hermann G. Schatzmayr; Frank Fenner
Why the Smallpox Virus Stocks Should Not Be Destroyed, pp. 1225-1226
Wolfgang K. Joklik; Bernard Moss; Bernard N. Fields; David H. L. Bishop; Lev S. Sandakhchiev


Perspective
Checkpoints That Couple Gene Expression to Morphogenesis, pp. 1227-1228
Richard Losick; Lucille Shapiro


Atomic Stabilization by Super-Intense Lasers, pp. 1229-1233
J. H. Eberly; K. C. Kulander


Research Article
Structural Basis of Pilus Subunit Recognition by the PapD Chaperone, pp. 1234-1241
Meta J. Kuehn; Derek J. Ogg; Jan Kihlberg; Lynn N. Slonim; Katarina Flemmer; Terese Bergfors; Scott J. Hultgren


Reports
Quantum Confinement in Size-Selected, Surface-Oxidized Silicon Nanocrystals, pp. 1242-1244
William L. Wilson; P. F. Szajowski; L. E. Brus
Real-Time Observation of the Vibration of a Single Adsorbed Molecule, pp. 1244-1247
Fumiya Watanabe; Gary M. McClelland; Harry Heinzelmann
Effective Coupling in Biological Electron Transfer: Exponential or Complex Distance Dependence?, pp. 1247-1249
Jeffrey W. Evenson; Martin Karplus
Growth of High Aspect Ratio Nanometer-Scale Magnets with Chemical Vapor Deposition and Scanning Tunneling Microscopy, pp. 1249-1252
Andrew D. Kent; Thomas M. Shaw; Stephan von Molnár; David D. Awschalom
Uncertainties in Carbon Dioxide Radiative Forcing in Atmospheric General Circulation Models, pp. 1252-1255
R. D. Cess; M.-H. Zhang; G. L. Potter; H. W. Barker; R. A. Colman; D. A. Dazlich; A. D. Del Genio; M. Esch; J. R. Fraser; V. Galin; W. L. Gates; J. J. Hack; W. J. Ingram; J. T. Kiehl; A. A. Lacis; H. Le Treut; Z.-X. Li; X.-Z. Liang; J.-F. Mahfouf; B. J. McAvaney; V. P. Meleshko; J.-J. Morcrette; D. A. Randall; E. Roeckner; J.-F. Royer; A. P. Sokolov; P. V. Sporyshev; K. E. Taylor; W.-C Wang; R. T. Wetherald
Photocrosslinking of 5-lodouracil-Substituted RNA and DNA to Proteins, pp. 1255-1257
Michael C. Willis; Brian J. Hicke; Olke C. Uhlenbeck; Thomas R. Cech; Tad H. Koch
Genetic Relationships Determined by a DNA Heteroduplex Mobility Assay: Analysis of HIV-1 env Genes, pp. 1257-1261
Eric L. Delwart; Eugene G. Shpaer; Joost Louwagie; Francine E. McCutchan; Manuel Grez; Helga Rubsamen-Waigmann; James I. Mullins
Induction of Metaphase Arrest in Cleaving Xenopus Embryos by MAP Kinase, pp. 1262-1265
Olivier Haccard; Boris Sarcevic; Andrea Lewellyn; Rebecca Hartley; Linda Roy; Tetsuro Izumi; Eleanor Erikson; James L. Maller
Requirement of Tyrosine Phosphorylation for Rapid Activation of a DNA Binding Factor by IL-4, pp. 1265-1267
Helen Kotanides; Nancy C. Reich
Targeted Insertion of a Variable Region Gene Into the Immunoglobulin Heavy Chain Locus, pp. 1268-1271
Shinsuke Taki; Myriam Meiering; Klaus Rajewsky
Generation of a Mouse Strain That Produces Immunoglobulin κ Chains with Human Constant Regions, pp. 1271-1274
Yong-Rui Zou; Hua Gu; Klaus Rajewsky
Bcl-2 Inhibition of Neural Death: Decreased Generation of Reactive Oxygen Species, pp. 1274-1277
Darci J. Kane; Theodore A. Sarafian; Rein Anton; Hejin Hahn; Edith Butler Gralla; Joan Selverstone Valentine; Tõnis Örd; Dale E. Bredesen
Sensing Structural Intermediates in Bacterial Flagellar Assembly by Export of a Negative Regulator, pp. 1277-1280
Kelly T. Hughes; Karen0 L. Gillen; Melinda J. Semon; Joyce E. Karlinsey


Book Reviews
Unelevated Vertebrates, p. 1282
Snakes. Ecology and Behavior.
Richard A. Seigel; Joseph T. Collins
Review author[s]: Harry W. Greene
Reptilians Too, pp. 1282-1283
Biology of Whiptail Lizards. (Genus Cnemidophorus).
John W. Wright; Laurie J. Vitt
Review author[s]: P. E. Vanzolini
Climate Chronologies, pp. 1283-1284
El Niño. Historical and Paleoclimatic Aspects of the Southern Oscillation.
Henry F. Diaz; Vera Markgraf
Review author[s]: Braddock K. Linsley
State-Specific Chemistry, p. 1285
Photodissociation Dynamics. Spectroscopy and Fragmentation of Small Polyatomic Molecules.
Reinhard Schinke
Review author[s]: Jim Baggott
Books Received, pp. 1285-1286


Back Matter (58 pp.)

Previous Issue: New Series, Vol. 262, No. 5136, Nov. 12, 1993
Next Issue: New Series, Vol. 262, No. 5138, Nov. 26, 1993



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