MATERIALS SCIENCE: Colloidal Encounters: A Matter of Attraction
Daan Frenkel
Science 3 November 2006: 768-769.
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PHYSICS: Beyond the Particle in the Box
Lars Walldén
Science 3 November 2006: 769-770.
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ECOLOGY: A Renaissance in the Study of Abundance
Brian J. McGill
Science 3 November 2006: 770-772.
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ASTRONOMY: Radio Traces of Cosmic Shock Waves
Torsten A. Enßlin
Science 3 November 2006: 772-773.
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BIOMEDICINE: Enhanced: Life, the Universe, and Body Temperature
Clifford B. Saper
Science 3 November 2006: 773-774.
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Reviews
A Century of Alzheimer's Disease
Michel Goedert and Maria Grazia Spillantini
Science 3 November 2006: 777-781.
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100 Years and Counting: Prospects for Defeating Alzheimer's Disease
Erik D. Roberson and Lennart Mucke
Science 3 November 2006: 781-784.
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Brevia
Accelerated Evolution of Conserved Noncoding Sequences in Humans
Shyam Prabhakar, James P. Noonan, Svante Pääbo, and Edward M. Rubin
Science 3 November 2006: 786.
The human genome contains conserved noncoding sequences that have evolved quickly and are located near neuronal genes, suggesting a role in cognition.
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Research Article
Impacts of Biodiversity Loss on Ocean Ecosystem Services
Boris Worm, Edward B. Barbier, Nicola Beaumont, J. Emmett Duffy, Carl Folke, Benjamin S. Halpern, Jeremy B. C. Jackson, Heike K. Lotze, Fiorenza Micheli, Stephen R. Palumbi, Enric Sala, Kimberley A. Selkoe, John J. Stachowicz, and Reg Watson
Science 3 November 2006: 787-790.
An extensive meta-analysis of data from 32 studies shows that loss of marine biodiversity is increasingly impairing the health of the oceans, yet these trends may still be reversible.
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Reports
Giant Ringlike Radio Structures Around Galaxy Cluster Abell 3376
Joydeep Bagchi, Florence Durret, Gastão B. Lima Neto, and Surajit Paul
Science 3 November 2006: 791-794.
Giant radio arcs around a galaxy cluster may mark sites at which cosmological shock waves are organizing galactic matter into filaments and generating cosmic rays.
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Imaging the Sublimation Dynamics of Colloidal Crystallites
J. R. Savage, D. W. Blair, A. J. Levine, R. A. Guyer, and A. D. Dinsmore
Science 3 November 2006: 795-798.
Upon rapid heating, colloidal crystals sublimate slowly until they reach a critical size, then suddenly melt and dissolve into a gas; proteins and glasses may behave similarly.
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Pattern Formation and Shape Changes in Self-Oscillating Polymer Gels
Victor V. Yashin and Anna C. Balazs
Science 3 November 2006: 798-801.
A model shows how oscillating chemical reactions affect the shape and volume of a polymer gel confined in two dimensions, yielding a rich variety of structures.
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Renewable Hydrogen from Nonvolatile Fuels by Reactive Flash Volatilization
J. R. Salge, B. J. Dreyer, P. J. Dauenhauer, and L. D. Schmidt
Science 3 November 2006: 801-804.
Heavy fuels sprayed onto hot catalysts as fine droplets in the presence of oxygen fully react to form hydrogen without waste carbon, which normally poisons the catalysts.
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Coherent Electronic Fringe Structure in Incommensurate Silver-Silicon Quantum Wells
N. J. Speer, S.-J. Tang, T. Miller, and T.-C. Chiang
Science 3 November 2006: 804-806.
Band bending allows quantum well states in atomically smooth silver films to interfere with valance band states in a silicon substrate and create additional electronic features.
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Solar Nebula Heterogeneity in p-Process Samarium and Neodymium Isotopes
Rasmus Andreasen and Mukul Sharma
Science 3 November 2006: 806-809.
Published online 5 October 2006 [DOI: 10.1126/science.1131708] (in Science Express Reports)
Isotope ratios in primitive meteorites vary and differ from Earth's measured value, implying patchiness in the solar nebula originating from two stellar sources.
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