jueves, 29 de mayo de 2014

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Large muskies lured by the moon: Study ties lunar cycles, fish behavior to angler success

Posted: 28 May 2014 03:02 PM PDT

The lunar cycle may synchronize with feeding activity, luring large muskies to take angler bait. Previous studies have suggested a relationship between the moon and fish behavior. To investigate this further, scientists analyzed angler catch records for evidence of an effect due to the lunar cycle and explored sources of its variation on anglers' catch.

Meek male and fighting female scorpions

Posted: 28 May 2014 03:02 PM PDT

Threatened female bark scorpions sting quicker than males, likely to compensate for reduced ability to flee the threat. Differences between male and female scorpion bodies and behavior may result from sexual or environmental pressures. For example, female bark scorpions are pregnant 80% of the year, and as a result, may deal with threats differently than males.

Cynical? You may be hurting your brain health

Posted: 28 May 2014 01:37 PM PDT

People with high levels of cynical distrust may be more likely to develop dementia, according to a new study. Cynical distrust, which is defined as the belief that others are mainly motivated by selfish concerns, has been associated with other health problems, such as heart disease. This is the first study to look at the relationship between cynicism and dementia.

Light coaxes stem cells to repair teeth: Noninvasive laser therapy could radically shift dental treatment

Posted: 28 May 2014 12:05 PM PDT

Scientists have used low-power light to trigger stem cells inside the body to regenerate tissue. The research lays the foundation for a host of clinical applications in restorative dentistry and regenerative medicine more broadly, such as wound healing, bone regeneration, and more.

Zeroing in on the proton's magnetic moment

Posted: 28 May 2014 10:28 AM PDT

As part of a series of experiments designed to resolve one of the deepest mysteries of physics today, researchers have made the most precise ever direct measurement of the magnetic moment of a proton. The work seeks to answer the fundamental question of why we exist at all. It is believed that the Big Bang some 13 billion years ago generated equal amounts of matter and antimatter -- which annihilate when they collide -- and yet the universe today seems to contain only matter.

'Nanodaisies' deliver drug cocktail to cancer cells

Posted: 28 May 2014 07:53 AM PDT

Daisy-shaped, nanoscale structures that are made predominantly of anti-cancer drugs and are capable of introducing a 'cocktail' of multiple drugs into cancer cells, biomedical engineering researchers report. Once injected, the nanodaisies float through the bloodstream until they are absorbed by cancer cells. Once in a cancer cell, the drugs are released.

Marine fish use red biofluorescence to communicate, new research shows

Posted: 28 May 2014 07:40 AM PDT

Marine fish use red biofluorescence to communicate, new research shows. One of the most exciting discoveries, the researchers say, is that the fluorescence is a deep red in a part of the spectrum which, it was previously believed, fish could not see or make use of. It could be that red-eye wrasses use their fluorescence as a private frequency to communicate amongst themselves.

Artificial lung the size of a sugar cube may replace animal testing

Posted: 28 May 2014 07:40 AM PDT

What medications can be used to treat lung cancer, and how effective are they? Until now, drug companies have had to rely on animal testing to find out. But in the future, a new 3-D model lung is set to achieve more precise results and ultimately minimize -- or even completely replace -- animal testing.

Fish more inclined to crash into each other than bees

Posted: 28 May 2014 07:33 AM PDT

Swimming fish do not appear to use their collision warning system in the same way as flying insects, according to new research that has compared how zebra fish and bumblebees avoid collisions. The fish surprised the researchers.

Striking lack of diversity in prehistoric birds

Posted: 27 May 2014 06:49 PM PDT

Birds come in astounding variety -- from hummingbirds to emus -- and behave in myriad ways: they soar the skies, swim the waters, and forage the forests. But this wasn't always the case, according to new research.

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