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Wednesday, April 24, 2013

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Galaxy goes green in burning stellar fuel

Posted: 23 Apr 2013 12:37 PM PDT

Astronomers have spotted the "greenest" of galaxies, one that converts fuel into stars with almost 100-percent efficiency. The findings come from NASA's Wide-field Infrared Survey Explorer (WISE), NASA's Hubble Space Telescope and the IRAM Plateau de Bure interferometer in the French Alps.

Hundreds of tiny untethered surgical tools deployed in first animal biopsies

Posted: 23 Apr 2013 10:58 AM PDT

Using swarms of untethered grippers, each as small as a speck of dust, engineers and physicians have devised a new way to perform biopsies that could provide a more effective way to access narrow conduits in the body as well as find early signs of cancer or other diseases.

Infants' sweat response predicts aggressive behavior as toddlers

Posted: 23 Apr 2013 10:57 AM PDT

Infants who sweat less in response to scary situations at age 1 show more physical and verbal aggression at age 3, according to new research.

Contact killing of Salmonella by human fecal bacteria

Posted: 23 Apr 2013 08:08 AM PDT

Researchers have recently found a novel mode of interaction between Salmonella, a foodborne pathogen, and the bacteria that live in our guts. Fecal bacteria collected from healthy donors effectively inactivated Salmonella, when they were allowed close contact. Mathematical modelling of this interaction is now being used to find new ways of controlling Salmonella.

Humans feel empathy for robots: fMRI scans show similar brain function when robots are treated the same as humans

Posted: 23 Apr 2013 06:11 AM PDT

How do we really feel about non-sentient objects on a human level? A recent study found that humans have similar brain function when shown images of affection and violence being inflicted on robots and humans.

Decoding touch: Rats detect textures with their whiskers

Posted: 23 Apr 2013 06:09 AM PDT

With their whiskers rats can detect the texture of objects in the same way as humans do using their fingertips. A new study shows that it is possible to understand what specific object has been touched by a rat by observing the activation of brain neurons. A further step towards understanding how the brain, also in humans, represents the outside world.

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