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  1. Health & Medicine

    Brain may forge some memories in waves

    The waxing and waning of synchronized electrical bursts by cells in two key brain areas may promote at least one type of memory formation.

    By Bruce Bower
  2. Tech

    Wiring teensy tubes, strands into circuits

    Single-molecule transistors and other comparably small components are now at work in prototype circuits that may eventually lead to electronic devices crammed with up to 100,000 times more transistors per square centimeter than are on today's chips.

    By Peter Weiss
  3. Health & Medicine

    Protein may key lupus’ attack on neurons

    A protein on the surface of brain cells enables rogue antibodies to attach to and kill these neurons, suggesting an explanation for neurological problems found in some lupus patients.