ScienceDaily: Strange Science News

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• Dramatic growth of grafted stem cells in rat spinal cord
• Astronomers find stream of gas, 2.6 million light years long
• Acute psychological stress promotes skin healing in mice
• Synthesis of structurally pure carbon nanotubes using molecular seeds
• Girls feel they must 'play dumb' to please boys, study shows

Dramatic growth of grafted stem cells in rat spinal cord Posted: 07 Aug 2014 09:17 AM PDT Scientists have reported that neurons derived from human induced pluripotent stem cells and grafted into rats after a spinal cord injury produced cells with 10s of thousands of axons extending virtually the entire length of the animals' central nervous system.

Astronomers find stream of gas, 2.6 million light years long Posted: 07 Aug 2014 07:50 AM PDT Astronomers and students have found a bridge of atomic hydrogen gas 2.6 million light years long between galaxies 500 million light years away. The stream of atomic hydrogen gas is the largest known, a million light years longer than a gas tail found in the Virgo Cluster by another Arecibo project a few years ago.

Acute psychological stress promotes skin healing in mice Posted: 07 Aug 2014 07:43 AM PDT Brief, acute psychological stress promoted healing in mouse models of three different types of skin irritations, in a new study. Scientists found that healing was brought about by the anti-inflammatory effects of glucocorticoids -- steroid hormones -- produced by the adrenal glands in response to stress.

Synthesis of structurally pure carbon nanotubes using molecular seeds Posted: 07 Aug 2014 07:43 AM PDT For the first time, researchers have succeeded in "growing" single-wall carbon nanotubes (CNT) with a single predefined structure -- and hence with identical electronic properties. And here is how they pulled it off: the CNTs "assembled themselves", as it were, out of tailor-made organic precursor molecules on a platinum surface. In future, CNTs of this kind may be used in ultra-sensitive light detectors and ultra-small transistors.

Girls feel they must 'play dumb' to please boys, study shows Posted: 05 Aug 2014 06:09 AM PDT Girls feel the need to play down their intelligence to not intimidate boys, concludes research by a sociologist. The research also found that boys aged 14 believed that girls their age should be less intelligent. "There are very strong pressures in society that dictate what is a proper man and a proper woman," argues the researcher. "Young people try to adapt their behavior according to these pressures to fit into society. One of the pressures is that ... being in a relationship with a woman who is more intelligent will undermine (males') masculinity."

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