Humans

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We summarize the week's scientific breakthroughs every Thursday.

  1. Earth

    What lies beneath

    Studies of geology, soils and agricultural demand may prove useful in forecasting the climate effects of deforestation.

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  2. Health & Medicine

    Study clarifies obesity-infertility link

    In female mice, high insulin levels cause a disruptive flood of fertility hormones.

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  3. Ecosystems

    No ‘dead zone’ from BP oil

    As aquatic microbes dine, they consume oxygen. When too many congregate at some temporary smorgasbord of goodies, they can use up so much oxygen that a so-called dead zone develops — water with too little oxygen to sustain fish, mammals or shellfish. On Sept. 7, federal scientists reported that despite the massive release of oil from the damaged BP well in the Gulf of Mexico, no such dead zone developed.

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  4. Humans

    DVDs don’t turn toddlers into vocabulary Einsteins

    Young children don’t learn words from a popular educational program, but some of their parents think they do.

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  5. Health & Medicine

    Gloves may head off ‘garden’ variety pneumonia

    Compost feels so good, sifting through a gardener’s fingers. Unfortunately, data are showing, this soil amendment can host a germ responsible for Legionnaire’s disease, a potentially serious form of pneumonia.

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  6. Health & Medicine

    Diabetes drug might fight cancer

    A widely prescribed medication with few side effects shows promise in both mice and humans.

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  7. Health & Medicine

    Alzheimer’s trade-off for mentally active seniors

    Staying mentally active may delay the onset of Alzheimer’s disease but may also prompt rapid cognitive decline once symptoms appear.

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  8. Health & Medicine

    Ovary removal proves beneficial for cancer-prone women

    BRCA mutation carriers who opt for surgery survive longer than those who forgo the operation, a new study shows.

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  9. Life

    Why starved flies need less sleep

    Low lipid levels keep the insects buzzing past bedtime, a new study finds, suggesting a role for metabolism in regulating sleep.

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  10. Tech

    Tar sands ‘fingerprint’ seen in rivers and snow

    A new study refutes a government claim (one echoed by industry) that the gonzo-scale extraction of tar sands in western Canada — and their processing into crude oil — does not substantially pollute the environment.

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  11. Health & Medicine

    Wheat genome announcement turns out to be small beer

    The DNA sequence released by U.K. team still requires assembly.

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  12. Climate

    Academies recommend that IPCC make changes

    The Intergovernmental Panel on Climate Change, an authoritative scientific organization set up in 1989 to assess climate science, took some heat today from a group that it commissioned to investigate its credibility. The oversight group reported findings procedural weaknesses that preclude IPCC from responding nimbly to events — or from reliably identifying errors in its assessments.

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