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Male hormone plays key role in ovarian development

Scientists have discovered that the male “androgen” hormone is an important element in the ovarian development of female chicken embryos, more so than in the development of male testes. [caption id="attachment_11808" align="alignnone" width="732"] Left and…

MIT Printable Gold Bug 0 1

Toward printable, sensor-laden “skin” for robots

New 3-D-printed device mimics the goldbug beetle, which changes color when prodded. [caption id="attachment_11805" align="alignright" width="640"] A rendering of the 3-D printed device.Image: Subramanian Sundaram[/caption] CAMBRIDGE, Mass. -- In this age of smartphones and tablet computers,…

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Hydrogen freed by nanoparticle duo

Heat treatment offers precise control over catalytic activity of metal sulfide nanoparticles. [caption id="attachment_11800" align="alignright" width="300"] This scanning electron microscope image (magnification x100,000) shows the surface of a porous nickel foam that is peppered with…

NEWknightashton

Engineer’s goal is spinal tissue in a dish

[caption id="attachment_11797" align="alignnone" width="766"] Graduate student Gavin Knight and Randolph Ashton. Photo: Stephanie Precourt[/caption] MADISON - For a soldier who suffered a spinal cord injury on the battlefield, the promise of regenerative medicine is to…