This Week in Science

Editor summaries of this week's papers.
Science 7 March 2003: 1481.
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Editorial:
A Challenge to the World's Scientists

Kofi Annan
Science 7 March 2003: 1485.
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Editors' Choice

Highlights of the recent literature.
Science 7 March 2003: 1487.
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NetWatch

Best of the Web in science.
Science 7 March 2003: 1493.
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 NEW PRODUCTS

Science 7 March 2003: 1589-1590.

News of the Week

CLIMATE RESEARCH:
Right Direction, But a Long Way to Go for Bush's Plan

Richard A. Kerr
Science 7 March 2003: 1494.
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HIV/AIDS:
Vaccine Results Lose Significance Under Scrutiny

Jon Cohen
Science 7 March 2003: 1495.
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PLANETARY SCIENCE:
Researchers Watch Solar Eruption Sideswipe Bright Comet

Robert Irion
Science 7 March 2003: 1497.
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FORMER SOVIET UNION:
Fears Grow of Nuclear Brain Drain to Iran

Richard Stone
Science 7 March 2003: 1498.
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CANCER RISK:
Review Rules Out Abortion-Cancer Link

Jennifer Couzin
Science 7 March 2003: 1498.
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INFECTIOUS DISEASE:
Shortage of Meningitis Vaccine Forces Triage in Burkina Faso

Gretchen Vogel
Science 7 March 2003: 1499-1501.
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ENVIRONMENTAL PROTECTION AGENCY:
Access to Proposals Triggers Sharp Debate

Rebecca Renner
Science 7 March 2003: 1501.
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ScienceScope

Science 7 March 2003: 1497.
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Random Samples

Science 7 March 2003: 1511.
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News Focus

INFECTIOUS DISEASE:
Chasing the Fickle Swine Flu

Bernice Wuethrich
Science 7 March 2003: 1502-1505.
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INFECTIOUS DISEASE:
An Avian Flu Jumps to People

Bernice Wuethrich
Science 7 March 2003: 1504.
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HIV:
Escape Artist Par Excellence

Jon Cohen
Science 7 March 2003: 1505-1508.
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JAMES BATTEY PROFILE:
NIH's Man in the Middle of the Stem Cell Debate

Constance Holden
Science 7 March 2003: 1509.
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Letters

This Week's Letters

Science 7 March 2003: 1515.
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 Planning the Genome Institute's Future

Wendy R. Uhlmann, Robin Bennett, Jeffrey R. Botkin, David Botstein, Joann A. Boughman, Aravinda Chakravarti, Ellen Wright Clayton, Jeffrey Kahn, Barbara Koenig, Thomas H. Murray, Maynard V. Olson, Janet Rowley, Sharon Terry, David Valle;, and Elizabeth Pennisi
Science 4 March 2003: 1515.
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 Consensus and Ancestral State HIV Vaccines

David C. Nickle, Mark A. Jensen, Geoffrey S. Gottlieb, Daniel Shriner, Gerald H. Learn, Allen G. Rodrigo, James I. Mullins;, F. Gao, T. Bhattacharya, B. Gaschen, J. Taylor, J. P. Moore, V. Novitsky, K. Yusim, D. Lang, B. Foley, S. Beddows, M. Alam, B. Haynes, B. H. Hahn, and B. Korber
Science 7 March 2003: 1515-1518.
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Books et al.

MATHEMATICS:
Reflections of Reflections Without End

Michael Field
Science 7 March 2003: 1520-1521.
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ENVIRONMENT:
(Almost) All About Biodiversity

Osvaldo E. Sala
Science 7 March 2003: 1521.
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 Books Received

Science 7 March 2003: 1521.

Essays on Science and Society

PERCEPTIONS IN SCIENCE:
Is Evolution a Secular Religion?

Michael Ruse
Science 7 March 2003: 1523-1524.
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Perspectives

PALEOANTHROPOLOGY:
Whither the Neanderthals?

Richard G. Klein
Science 7 March 2003: 1525-1527.
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BIOMEDICINE:
Enhanced: A New Angle on Ocular Development

Wallace L. M. Alward
Science 7 March 2003: 1527-1528.
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MICROBIOLOGY:
Stomachs Out of Africa

Brian G. Spratt
Science 7 March 2003: 1528-1529.
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PLANETARY SCIENCE:
Cassini Imaging at Jupiter

Larry Esposito
Science 7 March 2003: 1529-1530.
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BOTANY:
State Transitions--a Question of Balance

John F. Allen
Science 7 March 2003: 1530-1532.
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ASTROPHYSICS:
Precision Cosmology? Not Just Yet . . .

Sarah L. Bridle, Ofer Lahav, Jeremiah P. Ostriker, and Paul J. Steinhardt
Science 7 March 2003: 1532-1533.
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Review

Genesis of Suicide Terrorism

Scott Atran
Science 7 March 2003: 1534-1539.
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Brevia

 Vertebrate MicroRNA Genes

Lee P. Lim, Margaret E. Glasner, Soraya Yekta, Christopher B. Burge, and David P. Bartel
Science 7 March 2003: 1540.
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Research Articles

Cassini Imaging of Jupiter's Atmosphere, Satellites, and Rings

Carolyn C. Porco, Robert A. West, Alfred McEwen, Anthony D. Del Genio, Andrew P. Ingersoll, Peter Thomas, Steve Squyres, Luke Dones, Carl D. Murray, Torrence V. Johnson, Joseph A. Burns, Andre Brahic, Gerhard Neukum, Joseph Veverka, John M. Barbara, Tilmann Denk, Michael Evans, Joseph J. Ferrier, Paul Geissler, Paul Helfenstein, Thomas Roatsch, Henry Throop, Matthew Tiscareno, and Ashwin R. Vasavada
Science 7 March 2003: 1541-1547.
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Mothers' Transitions from Welfare to Work and the Well-Being of Preschoolers and Adolescents

P. Lindsay Chase-Lansdale, Robert A. Moffitt, Brenda J. Lohman, Andrew J. Cherlin, Rebekah Levine Coley, Laura D. Pittman, Jennifer Roff, and Elizabeth Votruba-Drzal
Science 7 March 2003: 1548-1552.
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Reports

The Cosmic Production of Helium

Raul Jimenez, Chris Flynn, James MacDonald, and Brad K. Gibson
Science 7 March 2003: 1552-1555.
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Dynamics-Driven Reaction Pathway in an Intramolecular Rearrangement

Salai Cheettu Ammal, Hiroshi Yamataka, Misako Aida, and Michel Dupuis
Science 7 March 2003: 1555-1557.
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A Supershear Transition Mechanism for Cracks

Eric M. Dunham, Pascal Favreau, and J. M. Carlson
Science 7 March 2003: 1557-1559.
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Glacier Surge After Ice Shelf Collapse

Hernán De Angelis and Pedro Skvarca
Science 7 March 2003: 1560-1562.
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Shock-Induced Localized Amorphization in Boron Carbide

Mingwei Chen, James W. McCauley, and Kevin J. Hemker
Science 7 March 2003: 1563-1566.
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Photolysis of Sulfuric Acid Vapor by Visible Solar Radiation

V. Vaida, H. G. Kjaergaard, P. E. Hintze, and D. J. Donaldson
Science 7 March 2003: 1566-1568.
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The Effects of Cenozoic Global Change on Squirrel Phylogeny

John M. Mercer and V. Louise Roth
Science 7 March 2003: 1568-1572.
Published online 20 February 2003 [DOI: 10.1126/science.1079705] (in Science Express Reports)
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Role of Chloroplast Protein Kinase Stt7 in LHCII Phosphorylation and State Transition in Chlamydomonas

Nathalie Depège, Stéphane Bellafiore, and Jean-David Rochaix
Science 7 March 2003: 1572-1575.
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STAT1-Dependent Innate Immunity to a Norwalk-Like Virus

Stephanie M. Karst, Christiane E. Wobus, Margarita Lay, John Davidson, and Herbert W. Virgin, IV
Science 7 March 2003: 1575-1578.
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Modification of Ocular Defects in Mouse Developmental Glaucoma Models by Tyrosinase

Richard T. Libby, Richard S. Smith, Olga V. Savinova, Adriana Zabaleta, Janice E. Martin, Frank J. Gonzalez, and Simon W. M. John
Science 7 March 2003: 1578-1581.
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Traces of Human Migrations in Helicobacter pylori Populations

Daniel Falush, Thierry Wirth, Bodo Linz, Jonathan K. Pritchard, Matthew Stephens, Mark Kidd, Martin J. Blaser, David Y. Graham, Sylvie Vacher, Guillermo I. Perez-Perez, Yoshio Yamaoka, Francis Mégraud, Kristina Otto, Ulrike Reichard, Elena Katzowitsch, Xiaoyan Wang, Mark Achtman, and Sebastian Suerbaum
Science 7 March 2003: 1582-1585.
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Experience Strengthening Transmission by Driving AMPA Receptors into Synapses

Takuya Takahashi, Karel Svoboda, and Roberto Malinow
Science 7 March 2003: 1585-1588.
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