DNA Sheds Light On Settlement of Pacific
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Two genetic studies shed light on the epic journeys that led to the settlement of the vast Pacific region by humans.
Source: bbc.com

Two genetic studies shed light on the epic journeys that led to the settlement of the vast Pacific region by humans.
Source: bbc.com
MIT researchers have come up with a new way to measure electrical activity in the brain. Their new light-sensitive protein can be embedded into neuron membranes, where it emits a fluorescent signal that indicates how much voltage a particular cell is experiencing. This could allow scientists to study how neurons behave, millisecond by millisecond, as the brain performs a particular function.
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Have mechanisms like democratization really fostered an enduring trend of peaceful co-existence, or is this just a statistical fluke—a normal interlude of relative calm before another global-scale conflagration?
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When making hard decisions, do you go with your gut or try to calculate the risks? In many cases going with your gut is fine, but the answers to our February puzzle problems show how explicit probabilistic thinking can outperform intuitive estimates. They also highlight the differences between situations where an intuitive approach succeeds and ones where it fails.
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