This Week in Science

Editor summaries of this week's papers.
Science 23 February 2001: 1443.
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Editorial:
Nuclear Offense Versus Defense

Wolfgang K. H. Panofsky
Science 23 February 2001: 1447.
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Editors' Choice

Highlights of the recent literature.
Science 23 February 2001: 1449.
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NetWatch

Best of the Web in science.
Science 23 February 2001: 1453.
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 NEW PRODUCTS

Science 23 February 2001: 1565-1566.

 AAAS News & Notes

Science 23 February 2001: 1568.

 Gordon Research Conferences

Science 23 February 2001: 1569-1579.
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News of the Week

PALEOANTHROPOLOGY:
Scientists Spar Over Claims of Earliest Human Ancestor

Michael Balter
Science 23 February 2001: 1460-1461.
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JAPAN:
Fusion Scientists Urge Closer Look at ITER

Dennis Normile
Science 23 February 2001: 1461-1463.
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2002 SPENDING:
First Bush Budget May Put Science on Diet

David Malakoff and Jeffrey Mervis
Science 23 February 2001: 1463-1464.
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EUROPEAN SCIENCE:
Max Planck Takes an E-Publishing Plunge

Vivien Marx
Science 23 February 2001: 1464-1465.
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NEUROBIOLOGY:
A Discriminating Taste for Bitter

Kathryn Brown
Science 23 February 2001: 1465-1466.
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WOMEN IN SCIENCE:
Court to Hear Charges by Harvard Researcher

Andrew Lawler
Science 23 February 2001: 1466.
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ASTROPHYSICS:
Cluster Reveals Earth's Rippling Magnetic Field

Barbara Casassus and Alexander Hellemans
Science 23 February 2001: 1466-1467.
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PLANETARY SCIENCE:
Strange Doings on a NEAR-Struck Asteroid

Richard A. Kerr
Science 23 February 2001: 1467-1469.
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PALEONTOLOGY:
Whiff of Gas Points to Impact Mass Extinction

Richard A. Kerr
Science 23 February 2001: 1469-1470.
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ASTROPHYSICS:
New Headaches for U.S.-Russia Experiment

Vladimir Pokrovsky and Andrey Allakhverdov
Science 23 February 2001: 1470.
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ENDANGERED SPECIES:
West's Energy Woes Threaten Salmon Runs

Robert F. Service
Science 23 February 2001: 1470-1471.
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HIGH-ENERGY PHYSICS:
B-Meson Factories Make a "Number From Hell"

Robert Irion
Science 23 February 2001: 1471.
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ScienceScope

Science 23 February 2001: 1463.
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Random Samples

Science 23 February 2001: 1481.
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News Focus

PAPAL SCIENCE:
Science and Religion Advance Together at Pontifical Academy

Charles Seife
Science 23 February 2001: 1472-1474.
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PAPAL SCIENCE:
Vatican Observatory Takes Long View of Exploring the Heavens

Charles Seife
Science 23 February 2001: 1473.
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COMPUTER MODELS:
Paleontologists Learn to Shake Up Virtual Bones

Erik Stokstad
Science 23 February 2001: 1475-1476.
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SUPERCONDUCTIVITY:
Material Sets Record for Metal Compounds

Robert F. Service
Science 23 February 2001: 1476-1477.
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CHINESE ACADEMY OF SCIENCES:
In China, Publish or Perish Is Becoming the New Reality

Ding Yimin
Science 23 February 2001: 1477-1479.
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Letters

This Week's Letters

Science 23 February 2001: 1487.
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 What Is a Planet?

Mark McCaughrean, Neill Reid, Chris Tinney, Davy Kirkpatrick, Lynne Hillenbrand, Adam Burgasser, John Gizis, Suzanne Hawley;, and Maria Rosa Zapatero Osorio
Science 23 February 2001: 1487-1488.
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 ADHD: Disorder or Discipline Problem?

Stephen V. Faraone and Joseph Biederman
Science 23 February 2001: 1488-1489.
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 Politics of the Census

David W. Murray; and Kenneth Prewitt
Science 23 February 2001: 1489-1490.
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 CORRECTIONS AND CLARIFICATIONS

Science 23 February 2001: 1490.
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Books et al.

FICTION:
An Internet Tea Party

Julio Licinio
Science 23 February 2001: 1493-1495.
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TECHNOLOGY:
Betrayed by Batteries?

Leonard S. Reich
Science 23 February 2001: 1495.
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 Books Received

Science 23 February 2001: 1495.

Policy Forum

DEMOGRAPHY:
Prospects for Human Longevity

S. Jay Olshansky, Bruce A. Carnes, and Aline Désesquelles
Science 23 February 2001: 1491-1492.
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Perspectives

PALEOCLIMATE:
Enhanced: A Slow Dance for El Niño

Julia Cole
Science 23 February 2001: 1496-1497.
Published online 25 January 2001 [DOI: 10.1126/science.1059111] (in Science Express Perspectives)
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PALEOCLIMATE:
Was the Medieval Warm Period Global?

Wallace S. Broecker
Science 23 February 2001: 1497-1499.
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CELL CYCLE:
Centrioles at the Checkpoint

Andrew W. Murray
Science 23 February 2001: 1499-1502.
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ELECTRONICS:
Toward Paperlike Displays

John A. Rogers
Science 23 February 2001: 1502-1503.
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IMMUNOLOGY:
B Cell Receptor Rehabilitation--Pausing to Reflect

Leslie B. King and John G. Monroe
Science 23 February 2001: 1503-1505.
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EVOLUTION:
A Horn for an Eye

Paul H. Harvey and Charles J. Godfray
Science 23 February 2001: 1505-1506.
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NEUROSCIENCE:
Drums Keep Pounding a Rhythm in the Brain

Michael P. Stryker
Science 23 February 2001: 1506-1507.
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Research Article

Variability in the El Niño-Southern Oscillation Through a Glacial-Interglacial Cycle

Alexander W. Tudhope, Colin P. Chilcott, Malcolm T. McCulloch, Edward R. Cook, John Chappell, Robert M. Ellam, David W. Lea, Janice M. Lough, and Graham B. Shimmield
Science 23 February 2001: 1511-1517.
Published online 25 January 2001 [DOI: 10.1126/science.1057969] (in Science Express Research Articles)
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Reports

Observation of d_x^2-y2-Like Superconducting Gap in an Electron-Doped High-Temperature Superconductor

T. Sato, T. Kamiyama, T. Takahashi, K. Kurahashi, and K. Yamada
Science 23 February 2001: 1517-1519.
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Rapid Electron Tunneling Through Oligophenylenevinylene Bridges

Hadley D. Sikes, John F. Smalley, Stephen P. Dudek, Andrew R. Cook, Marshall D. Newton, Christopher E. D. Chidsey, and Stephen W. Feldberg
Science 23 February 2001: 1519-1523.
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Automated Solid-Phase Synthesis of Oligosaccharides

Obadiah J. Plante, Emma R. Palmacci, and Peter H. Seeberger
Science 23 February 2001: 1523-1527.
Published online 1 February 2001 [DOI: 10.1126/science.1057324] (in Science Express Reports)
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Redox State of Mars' Upper Mantle and Crust from Eu Anomalies in Shergottite Pyroxenes

M. Wadhwa
Science 23 February 2001: 1527-1530.
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Impact Event at the Permian-Triassic Boundary: Evidence from Extraterrestrial Noble Gases in Fullerenes

Luann Becker, Robert J. Poreda, Andrew G. Hunt, Theodore E. Bunch, and Michael Rampino
Science 23 February 2001: 1530-1533.
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Costs and the Diversification of Exaggerated Animal Structures

Douglas J. Emlen
Science 23 February 2001: 1534-1536.
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TCR-Induced Transmembrane Signaling by Peptide/MHC Class II Via Associated Ig-/ Dimers

Paul Lang, John C. Stolpa, Benjamin A. Freiberg, Frances Crawford, John Kappler, Abraham Kupfer, and John C. Cambier
Science 23 February 2001: 1537-1540.
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Contribution of Receptor Editing to the Antibody Repertoire

Rafael Casellas, Tien-An Yang Shih, Markus Kleinewietfeld, Jasna Rakonjac, David Nemazee, Klaus Rajewsky, and Michel C. Nussenzweig
Science 23 February 2001: 1541-1544.
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Induction of Direct Antimicrobial Activity Through Mammalian Toll-Like Receptors

Sybille Thoma-Uszynski, Steffen Stenger, Osamu Takeuchi, Maria Teresa Ochoa, Matthias Engele, Peter A. Sieling, Peter F. Barnes, Martin Röllinghoff, Pal L. Bölcskei, Manfred Wagner, Shizuo Akira, Michael V. Norgard, John T. Belisle, Paul J. Godowski, Barry R. Bloom, and Robert L. Modlin
Science 23 February 2001: 1544-1547.
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Requirement of a Centrosomal Activity for Cell Cycle Progression Through G₁ into S Phase

Edward H. Hinchcliffe, Frederick J. Miller, Matthew Cham, Alexey Khodjakov, and Greenfield Sluder
Science 23 February 2001: 1547-1550.
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Centrosome-Dependent Exit of Cytokinesis in Animal Cells

Matthieu Piel, Joshua Nordberg, Ursula Euteneuer, and Michel Bornens
Science 23 February 2001: 1550-1553.
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Structure of a Bag/Hsc70 Complex: Convergent Functional Evolution of Hsp70 Nucleotide Exchange Factors

Holger Sondermann, Clemens Scheufler, Christine Schneider, Jörg Höhfeld, F.-Ulrich Hartl, and Ismail Moarefi
Science 23 February 2001: 1553-1557.
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Taste Receptor Cells That Discriminate Between Bitter Stimuli

Alejandro Caicedo and Stephen D. Roper
Science 23 February 2001: 1557-1560.
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Modulation of Oscillatory Neuronal Synchronization by Selective Visual Attention

Pascal Fries, John H. Reynolds, Alan E. Rorie, and Robert Desimone
Science 23 February 2001: 1560-1563.
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Technical Comments

 Polyploidy and Gender Dimorphism

Johanne Brunet, Aaron Liston, J. S. Miller, and D. L. Venable
Science 23 February 2001: 1441.
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