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  1. Health & Medicine

    Let there be light

    Researchers report restoring vision to people with a rare, genetic form of blindness. A different technique helped blind mice see again and could bring back some sight in people with macular degeneration, retinitis pigmentosa or other blinding diseases.

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  2. Psychology

    Smarten up

    Taxing memory training produces at least short-term increases in a critical type of intelligence.

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  3. Health & Medicine

    Tripping up avian flu

    Developing an effective vaccine for avian flu has been difficult, but small rings of DNA that hinder virus replication could offer an alternative.

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  4. Health & Medicine

    BOOK REVIEW | A Portrait of the Brain

    Review by Tina Hesman Saey.