News tagged with raft

Why do antidepressants take so long to work?

An episode of major depression can be crippling, impairing the ability to sleep, work, or eat. In severe cases, the mood disorder can lead to suicide. But the drugs available to treat depression, which can affect one in six ...

dateJul 28, 2016 in Biochemistry
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Broadening the bilayer

Lipid molecules have split personalities—one part loves water, whereas the other avoids it at all costs. Lipids make up cell membranes, the frontline defense in preventing cellular access to bacterial and viral invaders.

dateMar 31, 2016 in Biochemistry
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Going inside an ant raft (w/ Video)

Three years ago, Georgia Institute of Technology researchers took a close look at how fire ants work together to build waterproof rafts to stay alive. By looking at the edges and tops of rafts, the team discovered that ants ...

dateJun 11, 2014 in Plants & Animals
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Flexible, stretchable fire-ant rafts

What do Jell-O, toothpaste, and floating fire-ant rafts have in common? All are so-called "viscoelastic" materials, meaning that they can both resist flow under stress, like honey, and they can bounce back to their original ...

dateNov 26, 2013 in General Physics
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Ancient trading raft sails anew

(PhysOrg.com) -- For the first time in nearly 500 years, a full-size balsa-wood raft just like those used in pre-Columbian Pacific trade took to the water on Sunday, May 10. Only this time, instead of the Pacific coast between ...

dateMay 13, 2009 in Archaeology & Fossils
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