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  1. Health & Medicine

    Novel tack against diabetes

    Thwarting the production of immune proteins that induce inflammation prevents diabetes-prone mice from developing the disease.

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  2. Paleontology

    Earful of data hints at ancient fish migration

    Small bony growths that developed in the ears of fish more than 65 million years ago are providing a wealth of information about the species’ environment and lifestyle.

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  3. Physics

    New particles pose puzzle

    The discovery of two new subatomic particles with unexpectedly low masses is making physicists reconsider how fundamental particles called quarks interact.

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  4. Health & Medicine

    Eating right early might reduce premature births

    Malnutrition around the time of conception may promote early delivery of offspring.

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  5. Earth

    When pollutants take the Arctic route

    The highest North American concentrations of at least one air pollutant from Asia can be found in Newfoundland, the continent's easternmost region.

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  6. Earth

    What’s happening to German eelpout?

    Reproductive anomalies in eel-like fish may represent good markers of exposure to hormones or pollutants that mimic them.

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  7. Earth

    Flame retardants morph into dioxins

    Sunlight can break down common flame retardants, now nearly ubiquitous in the environment, into unusual chemicals in the dioxin family.

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  8. Earth

    Reused paper can be polluted

    Toxic chemicals can end up in recycled paper, making release of these reused materials into the environment potentially harmful.

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  9. From the May 20, 1933, issue

    LARGEST X-RAY TUBE BEGINS TO BATTLE AGAINST CANCER The mightiest weapon yet to enter the war against cancer was put in operation at the Mercy Hospital Institute of Radiation Therapy of Chicago. It is a new, 800,000-volt X-ray tube that, operating on a current of 1/100 of an ampere, is estimated to emit radiation equal […]

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  10. Amphibian Atlas

    Looking for a Montana tailed frog outside Montana or wondering in which state you might find a desert slender salamander? The U.S. Geological Survey has a Web site that identifies the places where different types of amphibians dwell across the United States. Click on any one of the 280 or so species of amphibians currently […]

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  11. Repeat After Me

    New research suggests that the ability to infer the thoughts and feelings of others grows out of a capacity for imitation exhibited by human infants and perhaps by other animals, as well.

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  12. Astronomy

    Gorgeous Gas

    Beyond their undeniable beauty, images of nearby, starlit clouds of gas and dust, known as HeII nebulae, may reveal properties of the very first stars in the universe.

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