Books Received
Science 9 February 2007: 768.
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Policy Forum
SCIENCE AND SOCIETY: Time for a New Era of Science Diplomacy
Kristin M. Lord and Vaughan C. Turekian
Science 9 February 2007: 769-770.
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Perspectives
BIOPHYSICS: Antennae as Gyroscopes
R. McNeill Alexander
Science 9 February 2007: 771-772.
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ATMOSPHERIC SCIENCE: Pumping Up Surface Air
Lyatt Jaegle
Science 9 February 2007: 772-773.
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MICROBIOLOGY: Bright Insight into Bacterial Gliding
Daniel B. Kearns
Science 9 February 2007: 773-774.
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CHEMISTRY: Can Droplets and Bubbles Think?
Irving R. Epstein
Science 9 February 2007: 775-776.
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CELL BIOLOGY: Cellular Demolition and the Rules of Engagement
Richard J. Youle
Science 9 February 2007: 776-777.
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OCEANS: Picoplankton Do Some Heavy Lifting
Richard T. Barber
Science 9 February 2007: 777-778.
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Brevia
Enceladus: Cosmic Graffiti Artist Caught in the Act
Anne Verbiscer, Richard French, Mark Showalter, and Paul Helfenstein
Science 9 February 2007: 815.
Hubble Space Telescope observations indicate that particles emitted from Saturn's moon Enceladus collide with other satellites in the same ring, increasing their albedos.
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Research Articles
Direct Measurements of the Convective Recycling of the Upper Troposphere
Timothy H. Bertram, Anne E. Perring, Paul J. Wooldridge, John D. Crounse, Alan J. Kwan, Paul O. Wennberg, Eric Scheuer, Jack Dibb, Melody Avery, Glen Sachse, Stephanie A. Vay, James H. Crawford, Cameron S. McNaughton, Antony Clarke, Kenneth E. Pickering, Henry Fuelberg, Greg Huey, Donald R. Blake, Hanwant B. Singh, Samuel R. Hall, Richard E. Shetter, Alan Fried, Brian G. Heikes, and Ronald C. Cohen
Science 9 February 2007: 816-820.
Published online 4 January 2007 [DOI: 10.1126/science.1134548] (in Science Express Research Articles)
Direct measurements imply that the rate of deep convection in the troposphere may be faster than predicted, affecting our understanding of chemical reactions in air.
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A Membrane Receptor for Retinol Binding Protein Mediates Cellular Uptake of Vitamin A
Riki Kawaguchi, Jiamei Yu, Jane Honda, Jane Hu, Julian Whitelegge, Peipei Ping, Patrick Wiita, Dean Bok, and Hui Sun
Science 9 February 2007: 820-825.
Published online 25 January 2007 [DOI: 10.1126/science.1136244] (in Science Express Research Articles)
A membrane protein with a previously unknown function binds the carrier protein for vitamin A, causes release of the vitamin, and transports it into cells.
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Reports
A Common Explosion Mechanism for Type Ia Supernovae
Paolo A. Mazzali, Friedrich K. Röpke, Stefano Benetti, and Wolfgang Hillebrandt
Science 9 February 2007: 825-828.
Spectral measurement of the expansion of type Ia supernovae shows that they all formed from stars of essentially the same mass, affirming their use for distance measurements.
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Coding/Decoding and Reversibility of Droplet Trains in Microfluidic Networks
Michael J. Fuerstman, Piotr Garstecki, and George M. Whitesides
Science 9 February 2007: 828-832.
Published online 4 January 2007 [DOI: 10.1126/science.1134514] (in Science Express Reports)
A microfluidics device in which droplets move into one of two unequal channels shows reversible nonlinear effects that can be manipulated to encode and decode signals.
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Microfluidic Bubble Logic
Manu Prakash and Neil Gershenfeld
Science 9 February 2007: 832-835.
Logic gates are created by exploiting the nonlinear behavior of bubbles traveling in an otherwise linear microfluidic system.
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Chemical and Spectroscopic Evidence for an FeV-Oxo Complex
Filipe Tiago de Oliveira, Arani Chanda, Deboshri Banerjee, Xiaopeng Shan, Sujit Mondal, Lawrence Que, Jr., Emile L. Bominaar, Eckard Münck, and Terrence J. Collins
Science 9 February 2007: 835-838.
Published online 21 December 2006 [DOI: 10.1126/science.1133417] (in Science Express Reports)
A high valent state of iron implicated in many enzymatic and environmental oxidations has been characterized in a stable compound at low temperature.
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