Earth’s magnetic field, which shields our planet from particles streaming outward from the Sun, often develops two holes that allow the largest leaks, according to researchers sponsored by NASA and the National Science Foundation.
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Researchers have discovered a critical new way a man can transmit the HIV virus to a woman. Scientists had long believed that the normal lining of the female vaginal tract was an effective barrier to invasion of the HIV virus during sexual intercourse. But new research has shown for the first time that the HIV [...]
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Engineers are helping a semiconductor manufacturer implement its idea of an energy-harvesting radio. It could transmit important data — like stress measurements on a bridge, for instance — without needing a change of batteries, ever.
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Researchers have identified a protein likely responsible for causing breast cancer to spread. Metastatic cancer occurs when cancer cells from the original tumor travel to distant sites via the blood system.
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With a one-hour delay of school start times, teens increased their average nightly hours of sleep and decreased their “catch-up sleep” on the weekends, and they were involved in fewer auto accidents.
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Persistent imminent orgasms in women are associated with restless legs and overactive bladder. Scientists studied 18 Dutch women with Persistent Sexual Arousal Syndrome. Women affected by this rare and mysterious syndrome experience persistent genital sensations as if they are continuously on the verge of an orgasm. According to one of the researchers PSAS is a [...]
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For the first time, astronomers have clearly seen the effects of ‘dark energy’ on the most massive collapsed objects in the Universe. By tracking how dark energy has stifled the growth of galaxy clusters and combining this with previous studies, scientists have obtained the best clues ever about what dark energy is and what the [...]
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The equivalent of one dose of caffeine (just two cups of coffee) ingested during pregnancy may be enough to affect fetal heart development and then reduce heart function over the entire lifespan of the child. The study was in mice, but the biological cause and effect described in the research paper is plausible in humans.
In the search for life beyond Earth, scientists “follow the water” to find places that might be hospitable. However, every home gardener knows that plants need more than water, or even sunshine. They also need fertilizer: a mixture of chemical elements that are the building blocks of the molecules of life. Scientists are now studying [...]
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Researchers in Finland are reporting identification of the first potential “biomarker” that could be used in development of a sputum test for early detection of chronic obstructive pulmonary disease (COPD). That condition, which causes severe difficulty in breathing — most often in cigarette smokers — affects 12 million people in the United States.
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