This Week in Science

Editor summaries of this week's papers.
Science 30 March 2001: 2511.
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Editorial:
An Unfortunate U-Turn on Carbon

Donald Kennedy
Science 30 March 2001: 2515.
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Editors' Choice

Highlights of the recent literature.
Science 30 March 2001: 2517.
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NetWatch

Best of the Web in science.
Science 30 March 2001: 2521.
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 NEW PRODUCTS

Science 30 March 2001: 2620-2622.

 AAAS News & Notes

Science 30 March 2001: 2623.

News of the Week

BIOCHEMISTRY:
Ribosome's Inner Workings Come Into Sharper View

Elizabeth Pennisi
Science 30 March 2001: 2526-2527.
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RESEARCH REACTORS:
German Neutron Source Faces New Demands

Robert Koenig
Science 30 March 2001: 2527-2529.
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CONSERVATION:
No Easy Answers for Biodiversity in Africa

Gretchen Vogel
Science 30 March 2001: 2529-2530.
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NEUROBIOLOGY:
How Cannabinoids Work in the Brain

Marcia Barinaga
Science 30 March 2001: 2530-2531.
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MARINE MAMMALOGY:
River Dolphins Add Branches to Family Tree

Dennis Normile
Science 30 March 2001: 2531-2532.
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CLIMATE CHANGE:
Early Birds May Miss the Worms

Elizabeth Pennisi
Science 30 March 2001: 2532.
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TOXICOLOGY:
Science Only One Part Of Arsenic Standards

Jocelyn Kaiser
Science 30 March 2001: 2533.
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PEER REVIEW:
NSF Scores Low on Using Own Criteria

Jeffrey Mervis
Science 30 March 2001: 2533-2535.
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DNA ARRAYS:
Affymetrix Settles Suit, Fixes Mouse Chips

Eliot Marshall
Science 30 March 2001: 2535.
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BIOMEDICAL TRAINING:
NIH Pledges Big Hike In Postdoc Stipends

Jeffrey Mervis
Science 30 March 2001: 2535.
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ScienceScope

Science 30 March 2001: 2529.
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Random Samples

Science 30 March 2001: 2547.
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News Focus

NUTRITION:
The Soft Science of Dietary Fat

Gary Taubes
Science 30 March 2001: 2536-2545.
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What If Americans Ate Less Saturated Fat?

Gary Taubes
Science 30 March 2001: 2538.
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The Epidemic That Wasn't?

Gary Taubes
Science 30 March 2001: 2540.
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Letters

This Week's Letters

Science 30 March 2001: 2549.
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 A Comprehensive U.S. Energy Policy

Monroe Burk; and S. J. Deitchman
Science 30 March 2001: 2549.
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 Portugal: A Case History in S&T Cooperation

Edward McSweegan
Science 30 March 2001: 2549-2550.
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 Tracking Antibiotics Up the Food Chain

Daniel M. Byrd III, Anthony Cox Jr., James D. Wilson;, Stanley Falkow, and Donald Kennedy
Science 30 March 2001: 2550.
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 Taiwan Seeks to Solve Its Resistance Problems

Monto Ho
Science 30 March 2001: 2550-2551.
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 Antibiotic Resistance Affects Plant Pathogens

George W. Sundin
Science 30 March 2001: 2551.
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 CORRECTIONS AND CLARIFICATIONS

Science 30 March 2001: 2551.
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Books et al.

PHYSICS:
Boltzmann's Science, Irony and Achievement

Leo P. Kadanoff
Science 30 March 2001: 2553-2554.
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EXHIBITS:
Nota Bene: Microbial Resolution and Reality

Caroline Ash
Science 30 March 2001: 2554.
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 Books Received

Science 30 March 2001: 2554.

Policy Forum

DEVELOPMENTAL BIOLOGY:
Don't Clone Humans!

Rudolf Jaenisch and Ian Wilmut
Science 30 March 2001: 2552.
Published online 28 March 2001 [DOI: 10.1126/science.1060463] (in Science Express Policy Forum)
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Perspectives

CANCER:
A CINtillating New Job for the APC Tumor Suppressor

David Pellman
Science 30 March 2001: 2555-2556.
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QUANTUM PHYSICS:
Standing Room Only at the Quantum Scale

K. M. O'Hara and J. E. Thomas
Science 30 March 2001: 2556-2557.
Published online 1 March 2001 [DOI: 10.1126/science.1060025] (in Science Express Perspectives)
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CELL BIOLOGY:
Enhanced: Chewing the Fat--ACC and Energy Balance

Neil Ruderman and Jeffrey S. Flier
Science 30 March 2001: 2558-2559.
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NEUROSCIENCE:
The Song Does Not Remain the Same

Daniel Margoliash
Science 30 March 2001: 2559-2561.
Published online 15 March 2001 [DOI: 10.1126/science.1060338] (in Science Express Perspectives)
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ATOMIC FORCE MICROSCOPY:
You May Squeeze the Atoms But Don't Mangle the Surface!

Alex de Lozanne
Science 30 March 2001: 2561-2562.
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CARBON CYCLE:
Discriminating Plants

F. I. Woodward
Science 30 March 2001: 2562-2563.
Published online 8 March 2001 [DOI: 10.1126/science.1059472] (in Science Express Perspectives)
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Research Article

Dynamics of the Vocal Imitation Process: How a Zebra Finch Learns Its Song

Ofer Tchernichovski, Partha P. Mitra, Thierry Lints, and Fernando Nottebohm
Science 30 March 2001: 2564-2569.
Published online 15 March 2001 [DOI: 10.1126/science.1058522] (in Science Express Research Articles)
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Reports

Observation of Fermi Pressure in a Gas of Trapped Atoms

Andrew G. Truscott, Kevin E. Strecker, William I. McAlexander, Guthrie B. Partridge, and Randall G. Hulet
Science 30 March 2001: 2570-2572.
Published online 1 March 2001 [DOI: 10.1126/science.1059318] (in Science Express Reports)
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Spin Chirality, Berry Phase, and Anomalous Hall Effect in a Frustrated Ferromagnet

Y. Taguchi, Y. Oohara, H. Yoshizawa, N. Nagaosa, and Y. Tokura
Science 30 March 2001: 2573-2576.
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Alignment of Liquid Crystals with Patterned Isotropic Surfaces

Baek-woon Lee and Noel A. Clark
Science 30 March 2001: 2576-2580.
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Quantitative Measurement of Short-Range Chemical Bonding Forces

M. A. Lantz, H. J. Hug, R. Hoffmann, P. J. A. van Schendel, P. Kappenberger, S. Martin, A. Baratoff, and H.-J. Güntherodt
Science 30 March 2001: 2580-2583.
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Influence of Carbonic Anhydrase Activity in Terrestrial Vegetation on the ¹⁸O Content of Atmospheric CO₂

Jim Gillon and Dan Yakir
Science 30 March 2001: 2584-2587.
Published online 8 March 2001 [DOI: 10.1126/science.1056374] (in Science Express Reports)
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Ancient Geodynamics and Global-Scale Hydrology on Mars

Roger J. Phillips, Maria T. Zuber, Sean C. Solomon, Matthew P. Golombek, Bruce M. Jakosky, W. Bruce Banerdt, David E. Smith, Rebecca M. E. Williams, Brian M. Hynek, Oded Aharonson, and Steven A. Hauck, II
Science 30 March 2001: 2587-2591.
Published online 15 March 2001 [DOI: 10.1126/science.1058701] (in Science Express Reports)
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Role of the Stratospheric Polar Freezing Belt in Denitrification

A. Tabazadeh, E. J. Jensen, O. B. Toon, K. Drdla, and M. R. Schoeberl
Science 30 March 2001: 2591-2594.
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Biospheric Primary Production During an ENSO Transition

Michael J. Behrenfeld, James T. Randerson, Charles R. McClain, Gene C. Feldman, Sietse O. Los, Compton J. Tucker, Paul G. Falkowski, Christopher B. Field, Robert Frouin, Wayne E. Esaias, Dorota D. Kolber, and Nathan H. Pollack
Science 30 March 2001: 2594-2597.
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Energetic and Fitness Costs of Mismatching Resource Supply and Demand in Seasonally Breeding Birds

Donald W. Thomas, Jacques Blondel, Philippe Perret, Marcel M. Lambrechts, and John R. Speakman
Science 30 March 2001: 2598-2600.
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Sterility of Drosophila with Mutations in the Bloom Syndrome Gene--Complementation by Ku70

Kohji Kusano, Dena M. Johnson-Schlitz, and William R. Engels
Science 30 March 2001: 2600-2602.
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Extreme Diversity, Conservation, and Convergence of Spider Silk Fibroin Sequences

John Gatesy, Cheryl Hayashi, Dagmara Motriuk, Justin Woods, and Randolph Lewis
Science 30 March 2001: 2603-2605.
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Costs and Benefits of High Mutation Rates: Adaptive Evolution of Bacteria in the Mouse Gut

Antoine Giraud, Ivan Matic, Olivier Tenaillon, Antonio Clara, Miroslav Radman, Michel Fons, and François Taddei
Science 30 March 2001: 2606-2608.
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Virus-Assisted Mapping of Neural Inputs to a Feeding Center in the Hypothalamus

Jeff DeFalco, Mark Tomishima, Hongyan Liu, Connie Zhao, XiaoLi Cai, Jamey D. Marth, Lynn Enquist, and Jeffrey M. Friedman
Science 30 March 2001: 2608-2613.
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Continuous Fatty Acid Oxidation and Reduced Fat Storage in Mice Lacking Acetyl-CoA Carboxylase 2 

Lutfi Abu-Elheiga, Martin M. Matzuk, Khaled A. H. Abo-Hashema, and Salih J. Wakil
Science 30 March 2001: 2613-2616.
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Conservation Conflicts Across Africa

Andrew Balmford, Joslin L. Moore, Thomas Brooks, Neil Burgess, Louis A. Hansen, Paul Williams, and Carsten Rahbek
Science 30 March 2001: 2616-2619.
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Technical Comments

 Subatomic Features in Atomic Force Microscopy Images

H. J. Hug, M. A. Lantz, A. Abdurixit, P. J. A. van Schendel, R. Hoffmann, P. Kappenberger, A. Baratoff, Franz J. Giessibl, Stefan Hembacher, Hartmut Bielefeldt, and Jochen Mannhart
Science 30 March 2001: 2509.
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