This Week in Science

Editor summaries of this week's papers.
Science 13 September 2002: 1765.
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Editorial:
Why Is a Liberal Education So Elusive?

Timothy Goldsmith
Science 13 September 2002: 1769.
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Editors' Choice

Highlights of the recent literature.
Science 13 September 2002: 1771.
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NetWatch

Best of the Web in science.
Science 13 September 2002: 1775.
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 NEW PRODUCTS

Science 13 September 2002: 1881-1883.

News of the Week

BRITISH SCIENCE:
Pioneering Stem Cell Bank Will Soon Be Open for Deposits

Gretchen Vogel
Science 13 September 2002: 1784.
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EUROPEAN SCIENCE:
Framework and Stem Cells: The Fight Goes On

Gretchen Vogel
Science 13 September 2002: 1784.
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SUSTAINABLE DEVELOPMENT:
World Summit Adopts Voluntary Action Plan

Jocelyn Kaiser
Science 13 September 2002: 1785.
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IMPACT HAZARD:
A Little Respect for the Asteroid Threat

Richard A. Kerr
Science 13 September 2002: 1785-1787.
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BIODIVERSITY:
Bid to Save Kamchatka's Wildlife

Paul Webster
Science 13 September 2002: 1787-1788.
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NUTRITION RESEARCH:
IOM Panel Weighs In on Diet and Health

Jennifer Couzin
Science 13 September 2002: 1788-1789.
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UNDERGRADUATE SCIENCE:
Biology Departments Urged to Bone Up

Erik Stokstad
Science 13 September 2002: 1789.
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INFORMATICS:
The Genome Chose Its Alphabet With Care

David Bradley
Science 13 September 2002: 1789-1791.
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PATENT LAWS:
Report Urges Leeway for Developing World

Jennifer Couzin and Pallava Bagla
Science 13 September 2002: 1791.
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ScienceScope

Science 13 September 2002: 1787.
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Random Samples

Science 13 September 2002: 1803.
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News Focus

CELL BIOLOGY:
Ubiquitin Lives Up to Its Name

Jean Marx
Science 13 September 2002: 1792-1794.
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AMERICAN CHEMICAL SOCIETY MEETING:
Chemists Search for Solutions

Robert F. Service
Science 13 September 2002: 1795-1796.
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TRANSGENIC SPECIES:
Engineered Fish: Friend or Foe of the Environment?

Erik Stokstad
Science 13 September 2002: 1797-1799.
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ENVIRONMENTAL RADIOACTIVITY:
Radioecology's Coming of Age--or Its Last Gasp?

Richard Stone
Science 13 September 2002: 1800-1801.
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ENVIRONMENTAL RADIOACTIVITY:
New Findings Allay Concerns Over Depleted Uranium

Richard Stone
Science 13 September 2002: 1801.
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Letters

This Week's Letters

Science 13 September 2002: 1807.
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 Stem Cells and Neurological Disorders

Donald G. Stein
Science 13 September 2002: 1807.
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 Taxonomic Bias and Vulnerable Species

Bruce A. Stein, Lawrence L. Master, Larry E. Morse;, J. Alan Clark, and Robert M. May
Science 13 September 2002: 1807.
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 Cancer Epigenetics and Methylation

Manel Esteller, Mario F. Fraga, Maria F. Paz, Elias Campo, Dolors Colomer, Francisco J. Novo, Maria J. Calasanz, Oliver Galm, Mingzhou Guo, Javier Benitez, James G. Herman;, Luciano Di Croce, and Pier Giuseppe Pelicci
Science 13 September 2002: 1807-1808.
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 Consequences of Siberian Traps Volcanism

Daniel Dorritie
Science 13 September 2002: 1808-1809.
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Books et al.

HISTORY OF SCIENCE:
Origin Was Just a Beginning

Edward J. Larson
Science 13 September 2002: 1812-1813.
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DEVELOPMENT:
What Is an Explanation?

Jonathan Slack
Science 13 September 2002: 1813.
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 Books Received

Science 13 September 2002: 1813.

Policy Forum

PUBLIC HEALTH:
Enhanced: Public Health vs. Civil Liberties

Ronald Bayer and James Colgrove
Science 13 September 2002: 1811.
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Perspectives

CLIMATE CHANGE:
North-South Connections

Thomas F. Stocker
Science 13 September 2002: 1814-1815.
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GEOLOGY:
Genesis of the World's Largest Gold Deposits

Hartwig E. Frimmel
Science 13 September 2002: 1815-1817.
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MEMBRANE FUSION:
Caught in the Act

Sol M. Gruner
Science 13 September 2002: 1817-1818.
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MOLECULAR BIOLOGY:
RNAi and Heterochromatin--a Hushed-Up Affair

Robin Allshire
Science 13 September 2002: 1818-1819.
Published online 22 August 2002 [DOI: 10.1126/science.1075874] (in Science Express Perspectives)
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BIOCHEMISTRY:
Sense and Sensitivity--Controlling the Ribosome

Matthew S. Sachs and Adam P. Geballe
Science 13 September 2002: 1820-1821.
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QUANTUM OPTICS:
Quantum Logic with Light, Glass, and Mirrors

Andrew Shields
Science 13 September 2002: 1821-1822.
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CANCER:
BRCA2 Enters the Fray

John H. Wilson and Stephen J. Elledge
Science 13 September 2002: 1822-1823.
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Review

MOLECULAR BIOLOGY:
Chromatin Higher Order Folding--Wrapping up Transcription

Peter J. Horn and Craig L. Peterson
Science 13 September 2002: 1824-1827.
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Brevia

 Small RNAs Correspond to Centromere Heterochromatic Repeats

Brenda J. Reinhart and David P. Bartel
Science 13 September 2002: 1831.
Published online 22 August 2002 [DOI: 10.1126/science.1077183] (in Science Express Brevia)
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Research Articles

Regulation of Heterochromatic Silencing and Histone H3 Lysine-9 Methylation by RNAi

Thomas A. Volpe, Catherine Kidner, Ira M. Hall, Grace Teng, Shiv I. S. Grewal, and Robert A. Martienssen
Science 13 September 2002: 1833-1837.
Published online 22 August 2002 [DOI: 10.1126/science.1074973] (in Science Express Research Articles)
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BRCA2 Function in DNA Binding and Recombination from a BRCA2-DSS1-ssDNA Structure

Haijuan Yang, Philip D. Jeffrey, Julie Miller, Elspeth Kinnucan, Yutong Sun, Nicolas H. Thomä, Ning Zheng, Phang-Lang Chen, Wen-Hwa Lee, and Nikola P. Pavletich
Science 13 September 2002: 1837-1848.
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Reports

A Proton Buffering Role for Silica in Diatoms

Allen J. Milligan and François M. M. Morel
Science 13 September 2002: 1848-1850.
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Water Diffusion and Clustering on Pd(111)

T. Mitsui, M. K. Rose, E. Fomin, D. F. Ogletree, and M. Salmeron
Science 13 September 2002: 1850-1852.
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Development of One-Dimensional Band Structure in Artificial Gold Chains

N. Nilius, T. M. Wallis, and W. Ho
Science 13 September 2002: 1853-1856.
Published online 22 August 2002 [DOI: 10.1126/science.1075242] (in Science Express Reports)
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A Major Archean, Gold- and Crust-Forming Event in the Kaapvaal Craton, South Africa

Jason Kirk, Joaquin Ruiz, John Chesley, John Walshe, and Gavin England
Science 13 September 2002: 1856-1858.
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Deformation on Nearby Faults Induced by the 1999 Hector Mine Earthquake

Yuri Fialko, David Sandwell, Duncan Agnew, Mark Simons, Peter Shearer, and Bernard Minster
Science 13 September 2002: 1858-1862.
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Relative Timing of Deglacial Climate Events in Antarctica and Greenland

Vin Morgan, Marc Delmotte, Tas van Ommen, Jean Jouzel, Jérôme Chappellaz, Suenor Woon, Valérie Masson-Delmotte, and Dominique Raynaud
Science 13 September 2002: 1862-1864.
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Instruction of Translating Ribosome by Nascent Peptide

Feng Gong and Charles Yanofsky
Science 13 September 2002: 1864-1867.
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Potential Regulatory Function of Human Dendritic Cells Expressing Indoleamine 2,3-Dioxygenase

David H. Munn, Madhav D. Sharma, Jeffrey R. Lee, Kanchan G. Jhaver, Theodore S. Johnson, Derin B. Keskin, Brendan Marshall, Phillip Chandler, Scott J. Antonia, Russell Burgess, Craig L. Slingluff, Jr., and Andrew L. Mellor
Science 13 September 2002: 1867-1870.
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Dependence of Heterochromatic Histone H3 Methylation Patterns on the Arabidopsis Gene DDM1

Anne-Valérie Gendrel, Zachary Lippman, Cristy Yordan, Vincent Colot, and Robert A. Martienssen
Science 13 September 2002: 1871-1873.
Published online 20 June 2002 [DOI: 10.1126/science.1074950] (in Science Express Reports)
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A Photoactivatable GFP for Selective Photolabeling of Proteins and Cells

George H. Patterson and Jennifer Lippincott-Schwartz
Science 13 September 2002: 1873-1877.
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Observation of a Membrane Fusion Intermediate Structure

Lin Yang and Huey W. Huang
Science 13 September 2002: 1877-1879.
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Technical Comments

 Humped Pattern of Diversity: Fact or Artifact?

Matías Arim, Olga Barbosa, Jean-François Molino, and Daniel Sabatier
Science 13 September 2002: 1763.
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