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Wednesday, April 9, 2014

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News


BOSS quasars track the expanding universe: Most precise measurement yet

Posted: 07 Apr 2014 11:37 AM PDT

Scientists have made novel measurements of the structure of the universe when it was only about 3 billion years old, using quasars collected by the Baryon Oscillation Spectroscopic Survey (BOSS). Results include the most precise measurement of expansion since galaxies formed. BOSS, the largest component of the third Sloan Digital Sky Survey, pioneered the use of quasars to chart universal expansion and the role of dark energy.

Procrastination and impulsivity genetically linked: Exploring the genetics of 'I'll do it tomorrow'

Posted: 07 Apr 2014 07:17 AM PDT

Procrastination and impulsivity are genetically linked, suggesting that the two traits stem from similar evolutionary origins, according to new research. The research indicates that the traits are related to our ability to successfully pursue and juggle goals.

Green tea extract boosts your brain power, especially the working memory, new research shows

Posted: 07 Apr 2014 07:15 AM PDT

Green tea is said to have many putative positive effects on health. Now, researchers are reporting first evidence that green tea extract enhances the cognitive functions, in particular the working memory. The findings suggest promising clinical implications for the treatment of cognitive impairments in psychiatric disorders such as dementia.

Blood test could detect solid cancers

Posted: 06 Apr 2014 01:24 PM PDT

A blood sample could one day be enough to diagnose many types of solid cancers, or to monitor the amount of cancer in a patient's body and responses to treatment. Now, researchers have devised a way to quickly bring the technique to the clinic. Their approach, which should be broadly applicable to many types of cancers, is highly sensitive and specific. With it they were able to accurately identify about 50 percent of people in the study with stage-1 lung cancer and all patients whose cancers were more advanced.

Key cells in touch sensation identified: Skin cells use new molecule to send touch information to the brain

Posted: 06 Apr 2014 01:22 PM PDT

Biologists have solved an age-old mystery of touch: how cells just beneath the skin surface enable us to feel fine details and textures. Touch is the last frontier of sensory neuroscience. The cells and molecules that initiate vision -- rod and cone cells and light-sensitive receptors -- have been known since the early 20th century, and the senses of smell, taste, and hearing are increasingly understood. But almost nothing is known about the cells and molecules responsible for initiating our sense of touch.

Antioxidants can protect against omega 6 damage -- or promote it

Posted: 04 Apr 2014 11:03 AM PDT

Given omega 6 fatty acid's reputation for promoting cancer -- at least in animal studies -- researchers are examining the role that antioxidants play in blocking the harmful effects of this culprit, found in many cooking oils. After all, antioxidants are supposed to prevent DNA damage. But employing antioxidants could backfire, say researchers.

Tracking the transition of early-universe quark soup to matter-as-we-know-it

Posted: 04 Apr 2014 10:58 AM PDT

By smashing together ordinary atomic nuclei at the Relativistic Heavy Ion Collider, scientists recreate the primordial soup of the early universe thousands of times per second. Using sophisticated detectors to track what happens as exotic particles emerge from the collision zone and "freeze out" into more familiar forms of matter, they are turning up interesting details about how the transition takes place.

Materials, electronics that dissolve when triggered being developed

Posted: 04 Apr 2014 05:54 AM PDT

An research team is developing "transient materials" and "transient electronics" that can quickly and completely melt away when a trigger is activated. That could mean that one day you could send out a signal to destroy a lost credit card, or when soldiers are wounded, their electronic devices could be remotely triggered to melt away, securing sensitive military information. The field of study is very new, but progress is being made.

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