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Comment by Dr. Krishna Kumari Challa on February 15, 2014 at 6:47am

When Scientists Are Mad about Each Other
Science couples who overcame the two-body problem collaborate in the lab and the home
http://www.scientificamerican.com/article/when-scientists-are-mad-a...

Comment by Dr. Krishna Kumari Challa on February 14, 2014 at 10:01am

Neuroscientists Discover The Secret Behind Galileo’s Illusion
With Kremkow and colleagues’ new study, science has zoomed in and illuminated the scope of the problem. It’s a feature of how we see everything, no less. By examining the responses of neurons in the visual system of the brain—to both light stimuli and dark stimuli—the neuroscientists discovered that, whereas dark stimuli result in a faithful neural response that accurately represents their size, light stimuli on the contrary result in non-linear and exaggerated responses that make the stimulus look larger. So white spots on a black background look bigger than same-sized black spots on white background, and Galileo’s glowing moons are not really as big as they might appear to the unaided eye.

This effect is responsible for how we see everything from textures and faces—based on their dark parts in bright daylight—to why it is easier to read this very page with black-on-white lettering, rather than white-on-black (a well known, and until now, unexplained phenomenon).

By tracing these effects as a function of the way neurons are laid out and interconnected in the retina and brain, the authors found that these effects are potentially derived from the very origin of vision—in the photoreceptors of the eye themselves.
http://www.pnas.org/content/early/2014/02/05/1310442111.abstract?si...

Comment by Dr. Krishna Kumari Challa on February 14, 2014 at 9:31am

Science, not muscle, driving many Olympic wins!
Much as we'd like to, no one today can pretend that the Olympics — or any sport, for that matter — is just about exceptional physical ability anymore. It's about the marriage between exceptional humans and exceptional technology, a union in which technology is increasingly the breadwinner.

Every advance in the ever-accelerating juggernaut of sports technology threatens to widen the divide between Olympic haves and have-nots. Well-sponsored teams and rich governments pay top-end scientists and engineers to shape their skis, perfect their skates, tighten their suits, measure their gravitational pull. That brings home medals, which in turn brings home new attention, new sponsors, new money to invest in the next race.

http://www.seattlepi.com/sports/article/Science-not-muscle-driving-...

Comment by Dr. Krishna Kumari Challa on February 14, 2014 at 7:13am

Oregano Oil Kills Norovirus—but Not Enough
Oregano oil cut numbers of the mouse version of norovirus 10-fold. Its active ingredient was better: a 10,000-fold reduction. But bleach achieves a million-fold reduction.
but there's no evidence it can do so inside your body, scientists say.

Comment by Dr. Krishna Kumari Challa on February 14, 2014 at 7:07am

Mammograms Fail to Reduce Breast Cancer Deaths, Study Finds
The large, 25-year study suggests that women under 60 do not benefit from yearly breast cancer screening
Yearly mammograms in middle-age women do not reduce breast cancer deaths — these tests are essentially as good as physical examination alone, according to a new 25-year study from Canada.
http://www.scientificamerican.com/article/mammograms-fail-to-reduce...

Comment by Dr. Krishna Kumari Challa on February 14, 2014 at 6:49am

Comment by Dr. Krishna Kumari Challa on February 13, 2014 at 9:56am

India Needs Grassroots Innovations, Say Scientists

Grassroots innovations could help India’s economic development, scientists say.
http://www.asianscientist.com/topnews/india-grassroots-innovations-...

Comment by Dr. Krishna Kumari Challa on February 13, 2014 at 6:11am

Comment by Dr. Krishna Kumari Challa on February 12, 2014 at 9:55am

In a study published today in Nature Communications, a research team led by Ken Shepard, professor of electrical engineering and biomedical engineering at Columbia Engineering, and Lars Dietrich, assistant professor of biological sciences at Columbia University, has demonstrated that integrated circuit technology, the basis of modern computers and communications devices, can be used for a most unusual application -- the study of signaling in bacterial colonies. They have developed a chip based on complementary metal-oxide-semiconductor (CMOS) technology that enables them to electrochemically image the signaling molecules from these colonies spatially and temporally. In effect, they have developed chips that "listen" to bacteria. "This is an exciting new application for CMOS technology that will provide new insights into how biofilms form," says Shepard. "Disrupting biofilm formation has important implications in public health in reducing infection rates."
http://esciencenews.com/articles/2014/02/11/chips.listen.bacteria

Comment by Dr. Krishna Kumari Challa on February 11, 2014 at 8:50am

Science and Engineering Indicators 2014

http://www.nsf.gov/statistics/seind14/

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