Humans

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We summarize the week's scientific breakthroughs every Thursday.

  1. Humans

    Science News of the Year 2004

    A review of important scientific achievements reported in Science News during the year 2004.

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  2. Humans

    Science News Challenge

    Try the Science News current-events crossword puzzle.

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  3. Humans

    From the December 15 & 22, 1934, issues

    Life on Mars, a substitute for morphine, the statistics of human behavior, ice and snow, and the top science stories of the year (1934).

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  4. Humans

    Letters from the December 18 & 25, 2004, issue of Science News

    Think fast “Car deaths rise days after terror attacks” (SN: 10/9/04, p. 237: Car deaths rise days after terror attacks) mentions that the traffic volume was reduced following the attacks, yet fails to mention another likely factor in the increased deaths: Less traffic usually results in higher average speeds. Del DietrichSan Jose, Calif. Our sun, […]

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  5. Health & Medicine

    Birth Dilemma: Doctors weigh pros and cons of cesareans

    Women attempting a vaginal birth after a cesarean delivery have more uterine ruptures and other complications than do women undergoing a second cesarean section.

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  6. Health & Medicine

    Colon scans reveal heart risk

    Virtual colonoscopy may offer the side benefit of identifying heart attacks that are waiting to happen.

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  7. Health & Medicine

    Trade Center cough is diagnosed

    Obstructions that trap air deep within the lungs may explain certain breathing difficulties among some people who worked at the site of the World Trade Center following Sept. 11, 2001.

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  8. Humans

    From the December 8, 1934, issue

    Goose barnacles, the formation of elements, and the nature of cosmic rays.

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  9. Health & Medicine

    Exploring the Heart

    Learn about the human heart at a fascinating online exhibit from the Franklin Institute Science Museum in Philadelphia. Discover the complexities of the heart’s development and structure. Follow the blood on its journey through the blood vessels. Check out how to keep your heart healthy and how to monitor your heart’s health. Look back at […]

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  10. Humans

    Letters from the December 11, 2004, issue of Science News

    Mover Earth I would have thought that it is more likely that Earth’s hum creates the weather patterns (“Humming Along: Ocean waves may cause global seismic noise,” SN: 10/2/04, p. 212: Humming Along: Ocean waves may cause global seismic noise) than the other way around. Judy AngelGlasgow, Scotland Nuclear fallout “Hurrying a nuclear identity switch” […]

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  11. Health & Medicine

    Stemming Incontinence: Injected muscle cells restore urinary control

    Stem cells removed from healthy muscle, grown in a lab, and inserted back into women with urinary incontinence can rebuild a muscle needed to control urine flow.

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  12. Health & Medicine

    Smog Clogs Arteries: Pollution does lasting harm to blood vessels

    Air pollution does long-term damage to people's arteries, leading to increased risk of heart attack and stroke, a Los Angeles study confirms.

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