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  1. Simulation and its Discontents by Sherry Turkle

    Computer simulation has altered standard practices in science and engineering, but its ubiquity has drawbacks. MIT Press, 2009, 217 p., $22. Simulation and its Discontents by Sherry Turkle

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  2. Humans

    It’s time to reform work hours for resident physicians

    A Harvard Medical School physician and sleep researcher says rules should be changed to make sure physicians-in-training get the sleep they need.

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  3. Space

    Moon crash delivers no obvious plume

    But the two impacts still yield data that could help in search for water

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  4. Space

    Ice confirmed on an asteroid

    Reporting from the American Astronomical Society meeting in Puerto Rico, planetary scientists confirm, for the first time, the presence of frozen water on an asteroid.

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  5. Life

    Circadian clockwork takes unexpected turns

    Some neurons in the brain’s master clock fall silent in the afternoon. The unexpected finding prompts scientists to rethink how the clock works.

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  6. Chemistry

    New view reveals how DNA fits into cell

    A new technique allows scientists to map the 3-D structure of the entire human genome.

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  7. Life

    Monkey moms and babies communicate from the start

    Macaque mothers and infants engage in emotional interactions similar to those of human moms and their babies, a new study suggests.

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  8. Health & Medicine

    Retrovirus might be culprit in chronic fatigue syndrome

    An obscure pathogen shows up often in people diagnosed with the condition, scientists find.

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  9. Chemistry

    Nobel Prize in chemistry commends finding and use of green fluorescent protein

    One researcher is awarded for discovering the protein that helps jellyfish glow and two for making the protein into a crucial tool for biologists.

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  10. Health & Medicine

    Pigs use mirrors

    After some time to play around with a mirror, pigs figure out what to do when they glimpse a reflection of food.

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  11. Chemistry

    Nobel Prize in chemistry awarded for ribosome research

    Ada Yonath, Thomas Steitz and Venkatraman Ramakrishnan will share the prize for unmasking the structure of the ribosome.

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  12. Space

    Largest known planetary ring discovered

    Researchers have found a dusty band that circles Saturn and has a radius of more than 12 million kilometers.

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