Half to three-quarters of major Antarctic penguin colonies face decline or disappearance if global temperatures are allowed to climb by more than 2°C.
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A novel therapy using a miniature nerve stimulator instead of medication for the treatment of profoundly disabling headache disorders improved the experience of pain by 80-95 percent, according to a new study.
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Researchers are developing a new robotic system to service more than 8,000 satellites now orbiting the Earth, beyond the flight range of ground-based repair operations. Currently, when the high-flying celestial objects malfunction — or simply run out of fuel — they become “space junk” cluttering the cosmos.
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Researchers report on a previously unknown relationship between stem cell potency and the metabolic rate of their mitochondria — a cell’s energy makers. Stem cells with more active mitochondria also have a greater capacity to differentiate and are more likely to form tumors.
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Images of the brain’s fastest signals reveal an electromagnetic marker that predicts a patient’s response to a fast-acting antidepressant. Such use of a brain scanner could someday minimize trial-and-error prescribing and speed delivery of care, say researchers. Depressed patients showed increased activity in a mood-regulating hub near the front of the brain while viewing flashing [...]
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A culture of neglect and, at some age levels, outright social ostracism, is derailing a generation of students, especially girls, deemed the very best in mathematics, according to a new study.
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Cracking the secrets of the atmosphere of Titan, Saturn’s mysterious moon, and how planetary atmospheres evolve, have come a step closer after evaluation of data from a successful fly-by of its surface by the Cassini spacecraft.
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Some bacteria may help protect against the development of a type of esophageal cancer, known as adenocarcinoma, according to a new review of the medical literature. These bacteria, which are called Helicobacter pylori, live in the stomachs of humans.
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Vinegar flies (Drosophila melanogaster) show a highly selective behavior towards odor stimuli. A series of behavioral studies showed that a single olfactory stimulus is often not sufficient for immediate attraction to potential food sources or oviposition sites. Interestingly, the behavior differed between investigated D. melanogaster varieties, so-called “wildtypes”.
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New research has evaluated the long-term efficacy of endoscopic mucosal resection, or EMR, in the treatment of patients with early stage esophageal cancer or Barrett’s esophagus. Two separate studies suggest EMR is an effective treatment alternative to surgery and generally yields positive long-term results.