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Science, New Series, Vol. 259, No. 5099, Feb. 26, 1993


Previous Issue: New Series, Vol. 259, No. 5098, Feb. 19, 1993
Next Issue: New Series, Vol. 259, No. 5100, Mar. 5, 1993


Front Matter (35 pp.)
Editorial: Pesticides and Food, p. 1235
Philip H. Abelson


Letters
Funding the SSC, pp. 1237-1238
T. H. Geballe; J. M. Rowell
Smitten by Quail, pp. 1238-1239
David B. Berkowitz
The Quality of Homoeosis, pp. 1239-1240
Z. Renee Sung
Splicer RNAs, p. 1240
Joan A. Steitz


ScienceScope, p. 1243
Richard Stone


News and Comment
Clinton's Technology Policy Emerges, pp. 1244-1245
Christopher Anderson
Publication by Electronic Mail Takes Physics by Storm, pp. 1246-1248
Gary Taubes
An Array of Science from Mitochondrial Eve to EUVE, pp. 1249-1252
Ann Gibbons; John Travis; Steven Dickman
New Meetings Tackle The Knowledge Conundrum, pp. 1253-1255
Anne Simon Moffat


Random Samples, p. 1256
Traci Watson


Research News
The Cell's Nucleus Shapes Up, pp. 1257-1258+1259
Michelle Hoffman
Looking for Cancer in Nuclear Matrix Proteins, p. 1258
John Travis
Analytical Titans Gather at Pittcon to Predict the Future, pp. 1260-1261
Ivan Amato
Battle Lines Shift in the Great Cosmic Distance Dispute, pp. 1262-1263
Faye Flam
MS Study Yields Mixed Results, p. 1263
Carol Kaesuk Yoon


Perspective
GTP Hydrolysis in Protein Synthesis: Two for Tu?, pp. 1264-1265
Paul Schimmel


Mediterranean Outflow Mixing and Dynamics, pp. 1277-1282
James F. Price; Molly O'Neil Baringer; Rolf G. Lueck; Gregory C. Johnson; Isabel Ambar; Gregorio Parrilla; Alain Cantos; Maureen A. Kennelly; Thomas B. Sanford

Simple Systems That Exhibit Self-Directed Replication, pp. 1282-1287
James A. Reggia; Steven L. Armentrout; Hui-Hsien Chou; Yun Peng


Research Article
Crystal Structure of a Synthetic Triple-Stranded α-Helical Bundle, pp. 1288-1293
Brett Lovejoy; Seunghyon Choe; Duilio Cascio; Donald K. McRorie; William F. DeGrado; David Eisenberg


Reports
The Chaotic Obliquity of Mars, pp. 1294-1297
Jihad Touma; Jack Wisdom
Lidar Observations of the Meteoric Deposition of Mesospheric Metals, pp. 1297-1300
Timothy J. Kane; Chester S. Gardner
Isomers of Small Carbon Cluster Anions: Linear Chains with up to 20 Atoms, pp. 1300-1302
Gert von Helden; Paul R. Kemper; Nigel G. Gotts; Michael T. Bowers
A Mixed-Valent Polyiron Oxo Complex That Models the Biomineralization of the Ferritin Core, pp. 1302-1305
Kingsley L. Taft; Georgia C. Papaefthymiou; Stephen J. Lippard
Identification of a Second Dynamic State During Stick-Slip Motion, pp. 1305-1308
Hisae Yoshizawa; Patricia McGuiggan; Jacob Israelachvili
Three-Dimensional Instabilities of Mantle Convection with Multiple Phase Transitions, pp. 1308-1311
S. Honda; D. A. Yuen; S. Balachandar; D. Reuteler
Toward a Model for the Interaction Between Elongation Factor Tu and the Ribosome, pp. 1311-1314
Albert Weijland; Andrea Parmeggiani
Inhibition of Rev-Mediated HIV-1 Expression by an RNA Binding Protein Encoded by the Interferon-Inducible 9-27 Gene, pp. 1314-1318
Pantelis Constantoulakis; Mel Campbell; Barbara K. Felber; Georgios Nasioulas; Elena Afonina; George N. Pavlakis
The Cloning of PIG-A, a Component in the Early Step of GPI-Anchor Biosynthesis, pp. 1318-1320
Toshio Miyata; Junji Takeda; Yoshiyasu Iida; Norio Yamada; Norimitsu Inoue; Minoru Takahashi; Kenji Maeda; Teruo Kitani; Taroh Kinoshita
Double-Blind Pilot Trial of Oral Tolerization with Myelin Antigens in Multiple Sclerosis, pp. 1321-1324
Howard L. Weiner; Glenn A. Mackin; Makoto Matsui; E. John Orav; Samia J. Khoury; David M. Dawson; David A. Hafler
Association Between Brain Temperature and Dentate Field Potentials in Exploring and Swimming Rats, pp. 1324-1326
Edvard Moser; Iacob Mathiesen; Per Andersen
Higher Level Organization of Individual Gene Transcription and RNA Splicing, pp. 1326-1330
Yigong Xing; Carol V. Johnson; Paul R. Dobner; Jeanne Bentley Lawrence
A Three-Dimensional View of Precursor Messenger RNA Metabolism Within the Mammalian Nucleus, pp. 1330-1335
Kenneth C. Carter; Douglas Bowman; Walter Carrington; Kevin Fogarty; John A. McNeil; Fredric S. Fay; Jeanne Bentley Lawrence


Technical Comments
The Role of Water in Hemoglobin Function and Stability, pp. 1335-1336
D. Bulone; P. L. San Biagio; M. B. Palma-Vittorelli; M. U. Palma; Marcio F. Colombo; Donald C. Rau; V. Adrian Parsegian


Book Reviews
Retrospective on Hanford, pp. 1348-1349
On the Home Front. The Cold War Legacy of the Hanford Nuclear Site.
Michele Stenehjem Gerber
Review author[s]: Bruce Hevly
S-Curves Everywhere, pp. 1349-1350
Predictions. Society's Telltale Signature Reveals the Past and Forecasts the Future.
Theodore Modis
Review author[s]: Kenneth C. Land
Geofractology, pp. 1350-1351
Fractal Models in the Earth Sciences.
G. Korvin
Review author[s]: Charles Sammis


Back Matter (17 pp.)

Previous Issue: New Series, Vol. 259, No. 5098, Feb. 19, 1993
Next Issue: New Series, Vol. 259, No. 5100, Mar. 5, 1993



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