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Brain changes linked to adolescent moods

nature.com/news -- Adolescents with larger amygdalas are more likely to have long and moody interactions with their mothers.BananastockA study of Australian adolescents has identified changes in the brain that correlate with the normal grumbling aggression and moodiness often seen in this age group. The study finds similar patterns in the relative sizes of parts of the brain of whining adolescents as has been seen i...     2008
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Krill spotted diving at depth

nature.com/news -- Antarctic krill have been caught on camera at the bottom of the Southern Ocean, far deeper than they are usually found. The crustaceans were spotted diving head-first into the sea bed, stirring up sediment to feed on the remains of phytoplankton lying on the sea floor.     2008
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Your history is printed in your hair

nature.com/news -- You are what you drink: local water leaves an isotopic mark in your hair.Digital VisionThe tap water that you drink leaves a 'signature' in your hair that can provide a history of where you’ve lived, according to researchers. Using these imprints to trace people's past movements may eventually become a common tool for anthropologists and law-enforcement officials. Tell-tale isotope signatures of w...     2008
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Self-forming Rings and Cages

nature.com/news -- Phys. Rev. Lett. 100, 137802 (2008)Nano-toys. These shapes--less than a half-micron across--form when polymers are dissolved in solution under the right conditions, according to computer simulations. The simulations revealed the formerly mysterious process that creates the shapes,     2008
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Antidepressant may treat lazy eye

nature.com/news -- The drug fluoxetine (Prozac), prescribed to millions of people with mental illnesses such as depression and anxiety, might soon have an unexpected new medical use — as a treatment for lazy eye syndrome.A study of rats with impaired vision shows that daily doses of fluoxetine help their brains' visual centres to rewire themselves and correct the defect. If the drug has a similar effect in humans, i...     2008
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