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Science RSS FeedsThis Week in Science - The Logic of Neurite Outgrowth | Manmade Sources of Nitrogen | From Folds to Wrinkles | Cosmic Shock Waves | Melting and Mixing the Mantle | Two Places at Once | Microwaves in a Hurry | Similar But Not the Same | Sipping with Tweezers | Keeping Foreign DNA Silent | Improving Imperfect Predictions | Plant Responses to Salt Stress | Cadherins and Guidepost Neurons | Charge Learns Its Fractions | Signaling Clock Timing...Feed Source: www.sciencemag.org Editors' Choice - CLIMATE SCIENCE: Wetter or Drier? | VIROLOGY: Leave It to Mimi | CHEMISTRY: Start Smart | NEUROSCIENCE: Neurogenesis and Navigation | ECOLOGY: Deterministic Competition | BIOMATERIALS: Bridging the Gap | IMMUNOLOGY: Another Twist in the Extrathymic Tale... Science Scope - Testing Stem Cell Waters | NASA Calls Back Weiler | ARISE, Young Scientists | Winds of Change at DOE... Random Samples - TONES FROM ANCIENT GREECE | COSMIC STRANGEGLOVE | MAGELLAN AND EL NIÑO... Newsmakers - PIONEERS | FACT AND FICTION | MOVERS | NON PROFIT WORLD... [EDITORIAL] Just Give Them Grants - Author: Alan I. Leshner... [NEWS] PHYSICS: Fermilab Sends Energy Department Final Plan to Lay Off 7% of Staff - About 140 scientists, engineers, technicians, and other staff at the Fermi National Accelerator Laboratory will receive pink slips in a 3-day process that could begin as early as next week.Author: Adrian Cho... [NEWS] ANTHROPOLOGY: Chinese Cancel International Meeting - The Chinese government last week canceled a major anthropology meeting scheduled for July in what appears to be a case of pre-Olympics jitters.Author: Constance Holden... [NEWS] SCIENTIFIC HONORS: The Cost of a Genuine Collaboration - Geneticist Nancy Jenkins has turned down an invitation to join the U.S. National Academy of Sciences because her husband and longtime scientific partner, geneticist Neal Copeland, was not on the list.Author: Yudhijit Bhattacharjee... [NEWS] LATIN AMERICA: Price Is the Main Barrier to Wider Use of Papillomavirus Vaccine - This week at a meeting in Mexico City, health officials and researchers are launching a campaign to introduce the human papillomavirus vaccine in Latin America, the first region in the developing world likely to benefit.Author: Jocelyn Kaiser... [NEWS] ITALY: A Plea for 'Transparent' Funding - A furor over political meddling in grants for stem cell research in Italy has erupted into a broad protest about favoritism and the lack of peer review in deciding who receives national science funding.Author: Laura Margottini... [NEWS] PUBLIC HEALTH: Staggering Toward a Global Strategy on Alcohol Abuse - Next week, the World Health Organization will take steps toward launching the first global assault on the harms associated with alcohol abuse.Author: David Grimm... [NEWS FOCUS] ENTOMOLOGY: A Mosquito Goes Global - The Asian tiger mosquito is on a rampage. Entomologists are impressed, public health officials are nervous, and many of the rest of us are swatting furiously. How did Aedes albopictus become such a scourge?Author: Martin Enserink... [NEWS FOCUS] PLANETARY SCIENCE: Layers Within Layers Hint at a Wobbly Martian Climate - Scientists scrutinizing layered rocks on Mars report online this week in Science that the layers formed in sync with changes in the planet's orbit.Author: Richard A. Kerr... [NEWS FOCUS] CHEMISTRY: Click Chemistry Clicks Along - Researchers seeking new ways to forge molecules are saving steps and effort by adapting high-yield reactions to fill a variety of needs.Author: Robert F. Service... [NEWS FOCUS] PHYSICS: The Hot Question: How New Are the New Superconductors? - Do iron-and-arsenic superconductors work the same way as the older, inscrutable copper-and-oxygen compounds? Early evidence points both ways.Author: Adrian Cho... [LETTERS] U.S. Concerns over Bluetongue - Authors: E. Paul J. Gibbs, Walter J. Tabachnick, Thomas J. Holt, David E. Stallknecht... [LETTERS] In Defense of Max Planck - Authors: Melissa Beth Duhaime, Soren Alsheimer,, Ralitsa Angelova, Ian Fitzpatrick... [LETTERS] Effect of Contraceptive Access on Birth Rate - Authors: Martha Campbell, Malcolm Potts;, Ruth Mace... [LETTERS] Financing Tropical Forest Preservation - Authors: Ian G. Warkentin, Navjot S. Sodhi... [TECHNICAL COMMENT] Comment on ?Habitat Split and the Global Decline of Amphibians? - Author: David C. Cannatella... [TECHNICAL RESPONSE] Response to Comment on ?Habitat Split and the Global Decline of Amphibians? - Authors: Carlos Roberto Fonseca, Carlos Guilherme Becker, Célio Fernando Baptista Haddad, Paulo Inácio Prado... [BOOKS ET AL.] EXHIBITIONS: ART AND MATHEMATICS: Bridging the Cultural Divide - This exhibition at Kettle's Yard, Cambridge, explores geometry in science, current art, and the links between them.Author: W. Timothy Gowers... [BOOKS ET AL.] SCIENCE AND RELIGION: Rethinking History for a New Islamic Science - The author combines a historical survey of scientific achievements in the Islamic tradition with a call for a new science.Author: Jane H. Murphy... [POLICY FORUM] ECONOMICS: The Promise of Prediction Markets - The ability of groups of people to make predictions is a potent research tool that should be freed of unnecessary government restrictions.Authors: Kenneth J. Arrow, Robert Forsythe, Michael Gorham, Robert Hahn, Robin Hanson, John O. Ledyard, Saul Levmore, Robert Litan, Paul Milgrom, Forrest D. Nelson, George R. Neumann, Marco Ottaviani, Thomas C. Schelling, Robert J. Shiller, Vernon L. Smith, Erik Snowberg, Cass R. Sunstein, Paul C. Tetlock, Phil... [PERSPECTIVES] CIRCADIAN RHYTHMS: Integrating Circadian Timekeeping with Cellular Physiology - Models of circadian timekeeping mechanisms in plants, flies, and mammals are expanding to include intracellular small-molecule signals.Authors: Marie C. Harrisingh, Michael N. Nitabach... [PERSPECTIVES] PLANT SCIENCE: Plant Stress Profiles - Cell-specific transcript profiles reflecting response to environmental adversity add a new dimension to plant stress biology.Authors: Laurentius A. C. J. Voesenek, Ronald Pierik... [PERSPECTIVES] CHEMISTRY: The Changing Shapes of Molecules - A new microwave spectrometer enables the geometries of molecules to be tracked as they interconvert between different shapes.Authors: Dmitry G. Melnik, Terry A. Miller... [PERSPECTIVES] GEOCHEMISTRY: The Origin of Alkaline Lavas - Alkali-metal-rich lavas on ocean islands are produced from veins that form in oceanic mantle lithosphere as it ages.Author: Yaoling Niu... [PERSPECTIVES] CHEMISTRY: To Be or Not to Be Localized - The hole created by emission of a core electron in a diatomic molecule resides in an entangled state.Author: Kiyoshi Ueda... [PERSPECTIVES] BIOPHYSICS: The Intrigue of the Interface - Diverse phenomena, ranging from the way shorebirds feed to self-cleaning by leaves, can be explained through surface tension effects.Author: Mark W. Denny... [REVIEWS] Transformation of the Nitrogen Cycle: ?Recent Trends, Questions, and Potential Solutions - Authors: James N. Galloway, Alan R. Townsend, Jan Willem Erisman, Mateete Bekunda, Zucong Cai, John R. Freney, Luiz A. Martinelli, Sybil P. Seitzinger, Mark A. Sutton... [REVIEWS] Impacts of Atmospheric Anthropogenic Nitrogen on the Open Ocean - Authors: R. A. Duce, J. LaRoche, K. Altieri, K. R. Arrigo, A. R. Baker, D. G. Capone, S. Cornell, F. Dentener, J. Galloway, R. S. Ganeshram, R. J. Geider, T. Jickells, M. M. Kuypers, R. Langlois, P. S. Liss, S. M. Liu, J. J. Middelburg, C. M. Moore, S. Nickovic, A. Oschlies, T. Pedersen, J. Prospero, R. Schlitzer, S. Seitzinger, L. L. Sorensen, M. Uematsu, O. Ulloa, M. Voss, B. Ward, L. Zamora... [BREVIA] The Energetic Cost of Climbing in Primates - Large primates expend less energy walking than climbing, but smaller ones walk and climb with similar efficiencies, possibly facilitating an evolutionary shift into trees.Authors: Jandy B. Hanna, Daniel Schmitt, Timothy M. Griffin... [RESEARCH ARTICLES] Quasi-Particle Properties from Tunneling in the ?=52 Fractional Quantum Hall State - Tunneling measurements between the conduction channels in the fractional quantum Hall effect confirm that the charge is quantized in units of ¼ of an electron charge.Authors: Iuliana P. Radu, J. B. Miller, C. M. Marcus, M. A. Kastner, L. N. Pfeiffer, K. W. West... [RESEARCH ARTICLES] Design Logic of a Cannabinoid Receptor Signaling Network That Triggers Neurite Outgrowth - Analysis of transcription data and known signaling networks predict two previously unrecognized regulators of neuronal growth, which were experimentally confirmed.Authors: Kenneth D. Bromberg, Avi Ma?ayan, Susana R. Neves, Ravi Iyengar... [REPORTS] Turbulence and Magnetic Fields in the Large-Scale Structure of the Universe - Simulations suggest that shock waves in the early universe could have amplified small magnetic fields into the large, complex intergalactic fields we see today.Authors: Dongsu Ryu, Hyesung Kang, Jungyeon Cho, Santabrata Das... [REPORTS] Stress and Fold Localization in Thin Elastic Membranes - Experiments and simulations show that as a supported membrane is shortened, periodic wrinkles are replaced abruptly by sharp folds.Authors: Luka Pocivavsek, Robert Dellsy, Andrew Kern, Sebastián Johnson, Binhua Lin, Ka Yee C. Lee, Enrique Cerda... [REPORTS] Metasomatized Lithosphere and the Origin of Alkaline Lavas - Experiments imply that a common type of basalt can form from mantle previously altered by a water-rich fluid, and these basalts are not necessarily derived from recycled oceanic crust.Authors: Sébastien Pilet, Michael B. Baker, Edward M. Stolper... [REPORTS] Ultrafast Probing of Core Hole Localization in N2 - Because of quantum entanglement, the hole produced by removal of an inner electron from diatomic nitrogen can be localized or spread out, depending on the detection angle.Authors: M. S. Schöffler, J. Titze, N. Petridis, T. Jahnke, K. Cole, L. Ph. H. Schmidt, A. Czasch, D. Akoury, O. Jagutzki, J. B. Williams, N. A. Cherepkov, S. K. Semenov, C. W. McCurdy, T. N. Rescigno, C. L. Cocke, T. Osipov, S. Lee, M. H. Prior, A. Belkacem, A. L. Landers, H. S... [REPORTS] Measuring Picosecond Isomerization Kinetics via Broadband Microwave Spectroscopy - A broadband microwave spectrometer yields rotational spectra rapidly enough to characterize rearrangements of vibrationally excited molecules.Authors: Brian C. Dian, Gordon G. Brown, Kevin O. Douglass, Brooks H. Pate... [REPORTS] Hidden Neotropical Diversity: Greater Than the Sum of Its Parts - Molecular markers reveal that insect species on plants in the cucumber family are unexpectedly diverse, showing specificity for particular hosts and even certain tissues.Authors: Marty A. Condon, Sonja J. Scheffer, Matthew L. Lewis, Susan M. Swensen... [REPORTS] Surface Tension Transport of Prey by Feeding Shorebirds: The Capillary Ratchet - A shorebird moves water droplets containing prey into its throat by repeatedly opening and closing its beak, relying on the physical properties of water to drive the drop upward.Authors: Manu Prakash, David Quéré, John W. M. Bush... [REPORTS] Termination Factor Rho and Its Cofactors NusA and NusG ?Silence Foreign DNA in E. coli - A known bacterial protein acts broadly to terminate transcription in order to prevent read-through that can accidentally activate cryptic deleterious viruses.Authors: Christopher J. Cardinale, Robert S. Washburn, Vasisht R. Tadigotla, Lewis M. Brown, Max E. Gottesman, Evgeny Nudler... [REPORTS] Genome-Scale Proteomics Reveals Arabidopsis thaliana Gene Models and Proteome Dynamics - The Arabidopsis proteome shifts as the plant develops, and proteins not predicted from genome analysis, some derived from introns and pseudogenes, are expressed.Authors: Katja Baerenfaller, Jonas Grossmann, Monica A. Grobei, Roger Hull, Matthias Hirsch-Hoffmann, Shaul Yalovsky, Philip Zimmermann, Ueli Grossniklaus, Wilhelm Gruissem, Sacha Baginsky... [REPORTS] Cell Identity Mediates the Response of Arabidopsis Roots to Abiotic Stress - In Arabidopsis root tips exposed to high salinity or iron deficiency, clusters of genes are induced that are unique to one or both of these stress responses.Authors: José R. Dinneny, Terri A. Long, Jean Y. Wang, Jee W. Jung, Daniel Mace, Solomon Pointer, Christa Barron, Siobhan M. Brady, John Schiefelbein, Philip N. Benfey... [REPORTS] Early Forebrain Wiring: Genetic Dissection Using Conditional Celsr3 Mutant Mice - A cadherin molecule on the surface of guidepost neurons in the developing brain marks the pathway for axons to follow from the thalamus to the cortex.Authors: Libing Zhou, Isabelle Bar, Younès Achouri, Kenneth Campbell, Olivier De Backer, Jean M. Hebert, Kevin Jones, Nicoletta Kessaris, Catherine Lambert de Rouvroit, Dennis O?Leary, William D. Richardson, Andre M. Goffinet, Fadel Tissir... [REPORTS] cAMP-Dependent Signaling as a Core Component of the Mammalian Circadian Pacemaker - Signaling through cyclic adenosine monophosphate determines the amplitude, phase, and period of the mammalian circadian clock and so may be an integral part of the pacemaker.Authors: John S. O?Neill, Elizabeth S. Maywood, Johanna E. Chesham, Joseph S. Takahashi, Michael H. Hastings... [DEPARTMENTS] Science Podcast - Author: ... Copyright © 2008, Real Estate Investment Tips. All Rights Reserved. |