Uncategorized

  1. Earth

    Ozone hole might not recover until the year 2065

    The ozone-free zone that develops high in the atmosphere over Antarctica each summer as the result of the presence of chlorine- and bromine-containing chemicals may not heal until 15 years later than previously projected.

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  2. Health & Medicine

    Protein predicts sickle-cell danger

    A biological marker of heart trouble can be used to identify sickle-cell anemia patients who are at greatest risk of developing a serious, disease-related complication.

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  3. Health & Medicine

    Transfusions harm some heart patients

    Patients who undergo coronary-bypass surgery frequently receive unnecessary blood transfusions as part of their follow-up care.

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  4. Health & Medicine

    Old drug, new trick

    The drug rapamycin, now used in transplants, may make chemotherapy for acute lymphoblastic leukemia more effective.

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  5. Health & Medicine

    Molecule marks leukemia cells

    Researchers can now single out malignant cells in the bone marrow of patients with acute myeloid leukemia by using an antibody that latches on to a newfound cell protein.

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  6. Health & Medicine

    Rare marrow cells tackle deadly immune reaction

    Researchers have developed a new technique to counter graft-versus-host disease, a common complication of treating blood cancers with marrow-cell transfusions.

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  7. Earth

    Lab tests hint at where xenon hides out

    Results of recent experiments in which scientists squeezed a mixture of xenon and powdered quartz at high temperatures and pressures may explain why the gas is found at relatively low concentrations in the atmosphere.

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  8. Health & Medicine

    Ebola may travel on the wing

    Fruit bats can carry the Ebola virus, suggesting that they may spread it in Africa.

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  9. Astronomy

    A puny way to make planets

    Brown dwarfs are failures in the star-making business, but new observations reveal that they may still succeed in growing planets.

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  10. Tech

    Nanotubes spring eternal

    Researchers have discovered that forests of carbon nanotubes squish and expand like foams, but with extraordinary resilience.

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  11. 19624

    Presumably, you were attempting to be funny in this article, but the bias was too obvious, straight out of the anti–intelligent design talking points. Instead of ridicule, could we get a spirited exchange from the best minds on both sides? David F. CoppedgeNewhall, Calif. While I’m extremely skeptical of the claims that some intelligent design […]

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  12. Humans

    Irreplaceable Perplexity 101

    An imaginary classroom provides lessons on the all-too-real debate over evolution and intelligent design.

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