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Friday, February 7, 2014

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Credit card-sized device could analyze biopsy, help diagnose pancreatic cancer in minutes

Posted: 06 Feb 2014 12:53 PM PST

Scientists and engineers are developing a low-cost device that could help pathologists diagnose pancreatic cancer earlier and faster. The prototype can perform the basic steps for processing a biopsy, relying on fluid transport instead of human hands to process the tissue.

Autism: Birth hormone may control expression of the syndrome in animals

Posted: 06 Feb 2014 11:21 AM PST

A new article demonstrates that chloride levels are abnormally elevated from birth in the neurons of mice used in an animal model of autism. Researchers show for the first time that oxytocin, the birth hormone, brings about a decrease in chloride level during birth, which controls the expression of the autistic syndrome.

Pacific salmon inherit magnetic sense of direction

Posted: 06 Feb 2014 10:36 AM PST

A team of scientists last year presented evidence of a correlation between the migration patterns of ocean salmon and Earth's magnetic field, suggesting it may help explain how the fish can navigate across thousands of miles of water to find their river of origin. This week, scientists confirmed the connection between salmon and the magnetic field.

Scientists reprogram skin cells into insulin-producing pancreas cells

Posted: 06 Feb 2014 10:36 AM PST

A cure for type 1 diabetes has long eluded even the top experts. Not because they do not know what must be done -- but because the tools did not exist to do it. But now scientists, harnessing the power of regenerative medicine, have developed a technique in animal models that could replenish the very cells destroyed by the disease.

Birds of a different color: Three major genes set feather hue in pigeons

Posted: 06 Feb 2014 10:33 AM PST

Scientists have identified mutations in three key genes that determine feather color in domestic rock pigeons. The same genes control pigmentation of human skin and can be responsible for melanoma and albinism.

Sneezing sponges suggest existence of sensory organ: Discovery challenges assumptions about 'primitive' organism

Posted: 06 Feb 2014 08:01 AM PST

Biologists have used a variety of drugs to elicit sneezes in freshwater sponges and observed the process using fluorescent dye. Their efforts focused on the sponge's osculum, which controls water exiting the organism, including water expelled during a sneeze.

'Friendly' robots could allow for more realistic human-android relationships

Posted: 06 Feb 2014 05:24 AM PST

Two 'friendly' robots, including a 3D-printed humanistic android, are helping scientists to understand how more realistic long-term relationships might be developed between humans and androids.

Red skies discovered on extreme brown dwarf

Posted: 06 Feb 2014 05:23 AM PST

A peculiar example of a celestial body, known as a brown dwarf, with unusually red skies has been discovered by a team of astronomers.

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