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  1. Health & Medicine

    Gene causes body-fat disorder

    A gene linked to a form of muscular dystrophy also causes a disease that deposits fat unevenly after puberty.

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  2. Health & Medicine

    Hormone treats autoimmune disease

    A medication combining the drug prasterone and hormone dehydroepiandrosterone, or DHEA, stabilizes or improves symptoms of lupus.

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  3. Predators shape river world top-down

    Hunting and no-hunting zones allow a rare test of the much-debated proposal that big carnivores shape their ecosystems from the top down.

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  4. Why did the turtle cross the road?

    A survey of painted turtles that perished while trying to cross a highway suggests that the freshwater species need more dry land than expected.

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  5. Humans

    From the February 25, 1933, issue

    ADAM AND EVE IN THE OLDEST CITY In the oldest city that archaeologists have ever explored they have dug up “Adam and Eve” and the serpent. There they are, the figures of a man and a woman, which have been stamped on clay with a seal. They are a dejected human pair, bent, and stumbling […]

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  6. Tech

    A Theremin’s Electronic Wail

    A pioneering electronic instrument played without touch, the theremin can produce a wide range of eerie sounds. Introduced by Lev Sergeyvich Termen in 1921, the instrument responds to hand motions, which control the pitch and loudness. Information about the theremin is available at various Web sites, and if you’re dying to play it yourself, you […]

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  7. Earth

    An Ounce of Prevention

    Fresh approaches may cut back greenhouse-gas emissions.

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  8. Earth

    The Motion in the Ocean

    Scientists dive deep to learn how the sea circulates.

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  9. Math

    The Tangled Task of Distinguishing Knots

    Consider the plight of a gardener struggling with a recalcitrant tangle of garden hose. Sometimes, no amount of pulling or twisting unsnarls the coils. At other times, the tangles readily come apart, and the hose emerges unknotted. Trefoil knot. Different views of the figure-eight knot. Robert Scharein Braid (left) and its closed form (right). Robert […]

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  10. Physics

    Electronic Acrobats: Tidily tweaking electrons’ twirls

    The first demonstration of three-dimensional, electrical control of a quantum property of electrons known as spin marks an important step toward a new type of spin-based electronics and, possibly, quantum computers.

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  11. Earth

    If It’s Wet in Malaysia . . . : Afghan droughts linked to rain in Indian Ocean

    An analysis of nearly 2 decades of weather patterns suggests a link between an abundance of precipitation in the eastern Indian Ocean and a lack of rain in portions of southwestern Asia.

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  12. 19178

    Another new anti-HIV drug in the non-nucleoside reverse transcriptase inhibitor (NNRTI) class that has shown promise is TMC125. You don’t mention this drug, but it has been shown in trial studies to have replaced five drugs for drug-resistant patients, it produces a large drop in viral load, and it has been shown to have very […]

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