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Posted: 02 Jan 2015 12:04 PM PST In experiments using ultracold atoms and laser light, researchers have measured a stepwise change in conductivity as the atoms pass through tiny structures. This is the first time that this quantum effect has been observed for electrically neutral particles. |
Mind over matter: Can you think your way to strength? Posted: 31 Dec 2014 12:40 PM PST Regular mental imagery exercises help preserve arm strength during 4 weeks of immobilization, researchers have found. Strength is controlled by a number of factors -- the most studied by far is skeletal muscle. However, the nervous system is also an important, though not fully understood, determinant of strength and weakness. In this study, researchers set out to test how the brain's cortex plays into strength development. |
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