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Science, New Series, Vol. 276, No. 5318, Jun. 6, 1997


Previous Issue: New Series, Vol. 276, No. 5317, May 30, 1997
Next Issue: New Series, Vol. 276, No. 5319, Jun. 13, 1997


Front Matter (34 pp.)
Editorial: Universities: At the Center of U.S. Research, p. 1479
Richard C. Atkinson


Letters
Antiretroviral Drug Trials, pp. 1481-1484
Alasdair Breckenridge; Valerie Kitchen; Janet H. Darbyshire; Koen K. A. Van Rompay; Marta L. Marthas; Joep M. A. Lange
What Nobelists Deserve, p. 1484
Harry Tong
An "Excellent Exercise", pp. 1484-1485
Timothy McNellis


Corrections and Clarifications: Determining the Early History of El Niño, p. 1485
Corrections and Clarifications: Dissociation of Methane into Hydrocarbons at Extreme (Planetary) Pressure and Temperature, p. 1485
Corrections and Clarifications: The Breast-Screening Brawl, p. 1485
ScienceScope, p. 1487
Jocelyn Kaiser


News and Comment
May I See Your License, Please?, pp. 1488+1490-1491
Eliot Marshall
Exclusive License Rankles Genome Researchers, p. 1489
Jon Cohen
Privatized Cancer Journal Triggers Senate Reaction, p. 1492
Andrew Lawler
Ark Claim Survives Court Fight, p. 1493
Elizabeth Finkel
Partners Heed Japan's Funding Plea, pp. 1493-1494
Nigel Williams
Scientists Launch Survey of Reef Health, p. 1494
Barbie Bischof


Research News
How the Nucleus Gets it Together, pp. 1495-1497
Elizabeth Pennisi
Making Plants Aluminum Tolerant, p. 1497
Marcia Barinaga
The Search for Mr. Goodfile Generates New Online Tools, pp. 1498-1499
Dennis Normile
Physics, Biology Meet in Self-Assembling Bacterial Fibers, pp. 1499-1500
Carol Potera
Mapping a Star's Magnetic Field, p. 1500
Erik Stokstad
Fossilized Hatchling Heats Up the Bird-Dinosaur Debate, p. 1501
Virginia Morell
No Bones About a Genetic Switch for Bone Growth, p. 1502
Steven Dickman


Random Samples, pp. 1503+1505
Constance Holden


Book Reviews
Al as Sport, pp. 1518-1519
Kasparov versus Deep Blue. Computer Chess Comes of Age.
Monty Newborn
Review author[s]: John McCarthy
Crystals That Came in from the Cold, p. 1519
Physics of Cryocrystals.
Vadim G. Manzhelii; Yuri A. Freiman
Review author[s]: Russell J. Hemley
Books Received, p. 1519


Perspectives
Solitons Made Simple, p. 1520
Y. R. Shen
Breathing with Chlorinated Solvents, pp. 1521-1522
Perry L. McCarty
Twins: En Route to QTLs for Cognition, pp. 1522-1523
Irving I. Gottesman


Webwatch, p. 1523
David Voss


Policy Forum
Lessons from Litigation Over Silicone Breast Implants: A Call for Activism by Scientists, pp. 1524-1525
James T. Rosenbaum


Reports
Arecibo Radar Mapping of the Lunar Poles: A Search for Ice Deposits, pp. 1527-1530
N. J. S. Stacy; D. B. Campbell; P. G. Ford
The Source of Green Light Emission Determined from a Heavy-Ion Storage Ring Experiment, pp. 1530-1533
D. Kella; L. Vejby-Christensen; P. J. Johnson; H. B. Pedersen; L. H. Andersen
Design of Surfaces for Patterned Alignment of Liquid Crystals on Planar and Curved Substrates, pp. 1533-1536
Vinay K. Gupta; Nicholas L. Abbott
Perturbed Equilibria and Statistical Energy Redistribution in a Gas-Phase SN2 Reaction, pp. 1536-1538
Stephen L. Craig; John I. Brauman
Accessible Solitons, pp. 1538-1541
Allan W. Snyder; D. John Mitchell
Preservation of Chitin in 25-Million-Year-Old Fossils, pp. 1541-1543
B. Arthur Stankiewicz; Derek E. G. Briggs; Richard P. Evershed; Matthew B. Flannery; Michael Wuttke
A Nestling Bird from the Lower Cretaceous of Spain: Implications for Avian Skull and Neck Evolution, pp. 1543-1546
José L. Sanz; Luis M. Chiappe; Bernardino P. Pérez-Moreno; José J. Moratalla; Francisco Hernández-Carrasquilla; Angela D. Buscalioni; Francisco Ortega; Francisco J. Poyato-Ariza; Diego Rasskin-Gutman; Xavier Martínez-Delclòs
The Origin Recognition Complex, SIR1, and the S Phase Requirement for Silencing, pp. 1547-1551
Catherine A. Fox; Ann E. Ehrenhofer-Murray; Stephen Loo; Jasper Rine
Orientation Selectivity in Pinwheel Centers in Cat Striate Cortex, pp. 1551-1555
Pedro E. Maldonado; Imke Gödecke; Charles M. Gray; Tobias Bonhoeffer
Genetic Feminization of Pheromones and Its Behavioral Consequences in Drosophila Males, pp. 1555-1558
Jean-François Ferveur; Fabrice Savarit; Cahir J. O'Kane; Gilles Sureau; Ralph J. Greenspan; Jean-Marc Jallon
A Similarity Between Viral Defense and Gene Silencing in Plants, pp. 1558-1560
Frank Ratcliff; Bryan D. Harrison; David C. Baulcombe
Substantial Genetic Influence on Cognitive Abilities in Twins 80 or More Years Old, pp. 1560-1563
Gerald E. McClearn; Boo Johansson; Stig Berg; Nancy L. Pedersen; Frank Ahern; Stephen A. Petrill; Robert Plomin
An Aquaporin-Like Gene Required for the Brassica Self-Incompatibility Response, pp. 1564-1566
Seishi Ikeda; June B. Nasrallah; Ram Dixit; Susanne Preiss; Mikhail E. Nasrallah
Aluminum Tolerance in Transgenic Plants by Alteration of Citrate Synthesis, pp. 1566-1568
Juan Manuel de la Fuente; Verenice Ramírez-Rodríguez; José Luis Cabrera-Ponce; Luis Herrera-Estrella
Isolation of a Bacterium That Reductively Dechlorinates Tetrachloroethene to Ethene, pp. 1568-1571
Xavier Maymó-Gatell; Yueh-tyng Chien; James M. Gossett; Stephen H. Zinder
Membrane and Morphological Changes in Apoptotic Cells Regulated by Caspase- Mediated Activation of PAK2, pp. 1571-1574
Thomas Rudel; Gary M. Bokoch


Technical Comment
Dating the Ngandong Humans, pp. 1575-1576
Rainer Grün; Alan Thorne; Carl C. Swisher III; W. Jack Rink; Henry P. Schwarcz; Susan C. Antón


Science's Next Wave: Build Your Career in Science-by Crossing National Borders, p. 1581
Nicole Ruediger

Back Matter (31 pp.)

Previous Issue: New Series, Vol. 276, No. 5317, May 30, 1997
Next Issue: New Series, Vol. 276, No. 5319, Jun. 13, 1997



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