14 August 2009
Vol 325, Issue 5942
  • Contents

    • This Week in Science

    • Editorial

    • Editors' Choice

    • Podcasts

      • Science Podcast

        The show includes how imitation affects affiliation, early humans' use of fire as an engineering tool, improving energy efficiency, and more.

    • Products & Materials

      • New Products

        A weekly roundup of information on newly offered instrumentation, apparatus, and laboratory materials of potential interest to researchers.

    • News of the Week

      • Northern India's Groundwater Is Going, Going, Going …

        Satellite remote sensing of a 2000-kilometer swath running from eastern Pakistan across northern India and into Bangladesh indicates that 54 cubic kilometers of groundwater are being lost per year from the world's most intensively irrigated region hosting 600 million people.

      • U.S. Panel Urges Clearer, Cleaner Role for Science

        A bipartisan panel of experts suggested last week how U.S. regulatory agencies can make better use of scientific advice by being more open in selecting and vetting outside experts, clearer in defining the questions they want answered, and more rigorous in reviewing the relevant literature.

      • Chu Lays Out an Agenda for PCAST and Asks for Help

        Energy Secretary Steven Chu says that one of his top budget priorities—to spend $288 million on eight break-the-mold energy-research centers modeled after the legendary Bell Labs—was rejected by the U.S. Congress because he failed to deliver the sales pitch in person.

      • From Science's Online Daily News Site

        Highlights from Science's online daily news site, ScienceNOW, this week include new evidence for a link between avian influenza and Parkinson's disease, the benefits of friendships between horses, new evidence that a whale stranding was caused by sonar, and an outer-space origin for clouds on Earth.

      • Margaret Hamburg Aims to Strengthen FDA Science

        In an interview with Science last week, U.S. Food and Drug Administration Commissioner Margaret Hamburg discussed her plans for the agency and dismissed rumors that she and Deputy Commissioner Joshua Sharfstein would each manage different FDA functions. The interview has been edited for brevity.

      • Recipe for Induced Pluripotent Stem Cells Just Got Clearer

        A clutch of five letters published online this week shows that p53 hinders the generation of induced pluripotent stem (iPS) cells. The work suggests ways to control the formation of iPS cells, although that capability will have to be used judiciously because p53 helps ensure the fitness of generated cells.

      • From the Science Policy Blog

        ScienceInsider this week reported on what Senate appropriators have called a "serious breach of trust" by staff members of an ambitious children's health study at the National Institutes of Health in withholding the ballooning costs of the project and plans for the cash-strapped University of California to lend $200 million to the state government, among other stories.

    • Random Samples

    • News Focus

      • Leaping the Efficiency Gap

        Experience has shown that there is more to saving energy than designing better light bulbs and refrigerators. Researchers say it will need a mixture of persuasion, regulation, and taxation.

      • Soap Operas to Save Energy

        Filmmaker John Johnson is collaborating with the creators of popular video programs on the Web to develop scripts that show people conserving energy and water and considering how their consumption choices might affect the planet.

      • Many More More-Efficient Computers

        One watt in every 50 now goes to powering computers, but big savings can still be made by using more-efficient power supplies and automatically putting idling computers into an energy-saving "sleep" mode.

      • Aircraft Designers Shoot for Savings on the Wing

        Commercial aircraft have become steadily more fuel-efficient by using better engines and reducing the drag and weight of the planes themselves. But efficiency increases beyond that may require a radical change in the shape of the aircraft, which carries enormous risks for manufacturers and airlines.

      • Making Use of Excess Heat

        The single biggest opportunity to increase the "energy productivity" of American industry is to make use of heat that would otherwise be thrown away. One way to do that is via cogeneration, or "combined heat and power," a technique that is more than a century old but newly fashionable.

    • Letters

    • Books et al.

    • Policy Forum

      • Children and Population Biobanks

        Access to samples and individual DNA sequence data from children included in population biobanks should, when feasible, await their consent as adults.

    • Perspectives

    • Review

    • Brevia

    • Research Articles

      • Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT

        Most of these identifications correspond to gamma-ray sources long suspected to be pulsars.

    • Reports

      • Detection of High-Energy Gamma-Ray Emission from the Globular Cluster 47 Tucanae with Fermi

        The Fermi Large Area Telescope reveals up to 60 millisecond pulsars in this globular cluster, twice as many as predicted by radio observations.

      • A Population of Gamma-Ray Millisecond Pulsars Seen with the Fermi Large Area Telescope

        These objects appear to share a common emission mechanism with standard gamma-ray pulsars.

      • Docking in Metal-Organic Frameworks

        Guest molecules bind site-specifically in macrocycles incorporated into the ligands of a metal organic framework solid.

About The Cover

Cover image expansion

COVER Pulsars in our Galaxy newly discovered by the Fermi Gamma-ray Space Telescope, launched in June 2008. The objects emit broad gamma-ray beams that have enabled Fermi to locate a never-before-seen population. Fermi has also seen pulsars with millisecond periods and has detected at least one globular cluster (center left). See the Research Article and two Reports beginning on page 840. Image: NASA/U.S. Department of Energy/Fermi LAT Collaboration/Sonoma State University/Aurore Simonnet