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In This Issue
- Silk: Mimicking how spiders make their complex array of silks could usher in a tapestry of new materials, and other animals or plants could be designed to be the producers
- Itch: Scientists trace a new path behind the maddening, unrelenting, screaming desire to scratch
- Half-life (more or less): Physicists are stirred by claims that the sun may change what’s unchangeable—the rate of radioactive decay
- This week's table of contents
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NEURAL NETWORKING
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By watching nerve cells in the brain, a team monitors changes in the connections between nerve cells from the brain stem (stained yellow in image) of a living mouse and nerve cells near the salivary gland (stained blue). If one cell drops communication, the connection eventually breaks.
Credit: C.M. McCann and J.W. Lichtman
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