Science 2 February 2007: 603-604.
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Perspectives
CELL SIGNALING: β-Arrestin, a Two-fisted Terminator
Eileen F. Grady
Science 2 February 2007: 605-606.
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ECOLOGY: Tackling Ecological Complexity in Climate Impact Research
Gian-Reto Walther
Science 2 February 2007: 606-607.
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CELL SIGNALING: Mitochondrial Longevity Pathways
György Hajnóczky and Jan B. Hoek
Science 2 February 2007: 607-609.
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CHEMISTRY: Watching Atoms Move
Joel D. Brock
Science 2 February 2007: 609-610.
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CHEMISTRY: Coherence and Symmetry Breaking at the Molecular Level
Andrei Sanov
Science 2 February 2007: 610-611.
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Review
Mesoscale Iron Enrichment Experiments 1993-2005: Synthesis and Future Directions
P. W. Boyd, T. Jickells, C. S. Law, S. Blain, E. A. Boyle, K. O. Buesseler, K. H. Coale, J. J. Cullen, H. J. W. de Baar, M. Follows, M. Harvey, C. Lancelot, M. Levasseur, N. P. J. Owens, R. Pollard, R. B. Rivkin, J. Sarmiento, V. Schoemann, V. Smetacek, S. Takeda, A. Tsuda, S. Turner, and A. J. Watson
Science 2 February 2007: 612-617.
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Brevia
Dimensions of Mind Perception
Heather M. Gray, Kurt Gray, and Daniel M. Wegner
Science 2 February 2007: 619.
In a Web-based survey, people conclude that anything that has feelings (such as hunger or pride) and the ability to act (such as communicating or showing self-restraint) possesses a mind.
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Reports
Composite Materials with Viscoelastic Stiffness Greater Than Diamond
T. Jaglinski, D. Kochmann, D. Stone, and R. S. Lakes
Science 2 February 2007: 620-622.
Adding barium titanate to tin produces a composite material that is stiffer than diamond, because the trapped inclusions have negative compressibility.
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Coupling Coherence Distinguishes Structure Sensitivity in Protein Electron Transfer
Tatiana R. Prytkova, Igor V. Kurnikov, and David N. Beratan
Science 2 February 2007: 622-625.
Average rates of electron tunneling in proteins, which seem to reflect the distance from donor to acceptor, are actually produced by multiple tunneling pathways.
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Thymine Dimerization in DNA Is an Ultrafast Photoreaction
Wolfgang J. Schreier, Tobias E. Schrader, Florian O. Koller, Peter Gilch, Carlos E. Crespo-Hernández, Vijay N. Swaminathan, Thomas Carell, Wolfgang Zinth, and Bern Kohler
Science 2 February 2007: 625-629.
Because spectroscopy indicates that ultraviolet light damages DNA within 1 picosecond, the damage depends on the DNA conformation just before it absorbs the light.
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Single Photon-Induced Symmetry Breaking of H2 Dissociation
F. Martín, J. Fernández, T. Havermeier, L. Foucar, Th. Weber, K. Kreidi, M. Schöffler, L. Schmidt, T. Jahnke, O. Jagutzki, A. Czasch, E. P. Benis, T. Osipov, A. L. Landers, A. Belkacem, M. H. Prior, H. Schmidt-Böcking, C. L. Cocke, and R. Dörner
Science 2 February 2007: 629-633.
When light dissociates hydrogen gas, two dissociation pathways of opposite parity entangle, leading to correlations in the directions followed by the resulting proton, electron, and atom.
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Ultrafast Bond Softening in Bismuth: Mapping a Solid's Interatomic Potential with X-rays
D. M. Fritz, D. A. Reis, B. Adams, R. A. Akre, J. Arthur, C. Blome, P. H. Bucksbaum, A. L. Cavalieri, S. Engemann, S. Fahy, R. W. Falcone, P. H. Fuoss, K. J. Gaffney, M. J. George, J. Hajdu, M. P. Hertlein, P. B. Hillyard, M. Horn-von Hoegen, M. Kammler, J. Kaspar, R. Kienberger, P. Krejcik, S. H. Lee, A. M. Lindenberg, B. McFarland, D. Meyer, T. Montagne, É. D. Murray, A. J. Nelson, M. Nicoul, R. Pahl, J. Rudati, H. Schlarb, D. P. Siddons, K. Sokolowski-Tinten, Th. Tschentscher, D. von der Linde, and J. B. Hastings
Science 2 February 2007: 633-636.
Femtosecond x-ray diffraction measurements show that as more electrons are excited, bismuth atoms in a lattice oscillate more slowly, softening the lattice as suggested by theory.
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Rapid 20th-Century Increase in Coastal Upwelling off Northwest Africa
H. V. McGregor, M. Dima, H. W. Fischer, and S. Mulitza
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