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Comment by Dr. Krishna Kumari Challa on September 24, 2013 at 5:32am

http://bcove.me/s0qyohop
DIY: Chemistry, art equals science to dye for

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 8:05am

http://www.scientificamerican.com/article.cfm?id=ovulating-women-ar...
Ovulating Women Are Less Trusting

Women approaching peak fertility are more cautious when interacting with strangers
When women approach their most fertile time of the month, they tend to prefer potential sexual partners with more outward signs of genetic fitness, such as facial symmetry, according to past research. Now scientists find that women behave differently toward strangers in a nonsexual context, too. A paper in the April Biological Psychology showed that women near ovulation were less willing to trust strangers in an investment game, especially if the strangers were male and even more so if they were attractive men. Higher levels of the hormone estradiol, which peaks just before ovulation, were associated with less trust—a sign that the women's heightened wariness has roots in the physiology of the menstrual cycle. The finding supports the idea that at ovulation, women may unconsciously temper their increased attraction to masculine men by interacting with them more cautiously.

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 8:01am

http://www.scientificamerican.com/article.cfm?id=science-reveals-wh...
Science Reveals Why Calorie Counts Are All Wrong
Digestion is far too messy a process to accurately convey in neat numbers. The counts on food labels can differ wildly from the calories you actually extract, for many reasons

Almost every packaged food today features calorie counts in its label. Most of these counts are inaccurate because they are based on a system of averages that ignores the complexity of digestion.
Recent research reveals that how many calories we extract from food depends on which species we eat, how we prepare our food, which bacteria are in our gut and how much energy we use to digest different foods.
Current calorie counts do not consider any of these factors. Digestion is so intricate that even if we try to improve calorie counts, we will likely never make them perfectly accurate.

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 7:57am

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 7:53am

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 7:29am

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 6:52am

http://esciencenews.com/articles/2013/09/19/coma.researchers.observ...

Coma: Researchers observe never-before-detected brain activity
Researchers from the University of Montreal and their colleagues have found brain activity beyond a flat line EEG, which they have called Nu-complexes (from the Greek letter n). According to existing scientific data, researchers and doctors had established that beyond the so-called "flat line" (flat electroencephalogram or EEG), there is nothing at all, no brain activity, no possibility of life. This major discovery suggests that there is a whole new frontier in animal and human brain functioning. The researchers observed a human patient in an extreme deep hypoxic coma under powerful anti-epileptic medication that he had been required to take due to his health issues. "Dr. Bogdan Florea from Romania contacted our research team because he had observed unexplainable phenomena on the EEG of a coma patient. We realized that there was cerebral activity, unknown until now, in the patient's brain," says Dr. Florin Amzica, director of the study and professor at the University of Montreal's School of Dentistry.

Dr. Amzica's team then decided to recreate the patient's state in cats, the standard animal model for neurological studies. Using the anesthetic isoflurane, they placed the cats in an extremely deep -- but completely reversible -- coma. The cats passed the flat (isoelectric) EEG line, which is associated with silence in the cortex (the governing part of the brain). The team observed cerebral activity in 100% of the cats in deep coma, in the form of oscillations generated in the hippocampus, the part of the brain responsible for memory and learning processes. These oscillations, unknown until now, were transmitted to the master part of the brain, the cortex. The researchers concluded that the observed EEG waves, or Nu-complexes, were the same as those observed in the human patient.

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 6:49am

http://www.redorbit.com/news/science/1112952080/smells-grouped-into...
Just How Many Scents Can We Smell?
Of all the different odors and smells floating around the globe, scientists say humans can only detect ten basic categories of scents. Using a computerized model, sensory scientists now say they’ve developed a way to systematically categorize these smells.
After looking at smells through a mathematical model, the scientists say humans generally describe smells as either fragrant, woody/resinous, fruity (non-citrus), chemical, minty/peppermint, sweet, popcorn, and lemon. Perhaps some good news from this study: The scientists say there are only two categories which cause a human’s stomach to turn – those described as pungent and decayed.

Comment by Dr. Krishna Kumari Challa on September 21, 2013 at 6:07am

http://www.sciencenews.org/view/generic/id/353363/description/Vitam...
Vitamin stops static electricity
Clearing out uncharged molecules may prevent charge buildup

Comment by Dr. Krishna Kumari Challa on September 20, 2013 at 6:57am

http://www.scientificamerican.com/article.cfm?id=how-to-exploit-the...
How to Exploit the Power of Diverse Minds

A good idea can be powerful. Many of them, in a network of diverse minds, can be more powerful still

Big corporations used to midwife good ideas from the research laboratory to the marketplace, but in the future that task will increasingly fall to a partnership of governments, commercial firms and universities.
To get different nations and institutions collaborating effectively on generating new technologies, we need new rules.
China is a rising star when it comes to innovation, but a closer look reveals that much of that work takes place in the labs of multinational corporations operating on Chinese soil.
Even though nations may differ in their levels of technological output, it is possible to compare how efficient they are at exploiting scientific research.
Mexico has difficulty translating its vibrant research into commercial technology, but the current government is trying to change that, in part by luring expat scientists back home.

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