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Monday, December 15, 2014

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News

Patient awakes from post-traumatic minimally conscious state after administration of depressant drug

Posted: 12 Dec 2014 09:24 AM PST

A patient who had suffered a traumatic brain injury unexpectedly recovered full consciousness after the administration of midazolam, a mild depressant drug of the GABA A agonists family. This resulted in the first recorded case of an "awakening" from a minimally-conscious state (MCS) using this therapy. Although similar awakenings have been reported using other drugs, this dramatic result was unanticipated.

Study supports the theory that men are idiots

Posted: 11 Dec 2014 06:00 PM PST

The theory that men are idiots and often do stupid things is backed up by new evidence. The findings are actually based on an analyses of sex differences in idiotic behavior. Worthy candidates of idiocy include a man stealing a ride home by hitching a shopping trolley to the back of a train, only to be dragged two miles to his death before the train was able to stop; and the terrorist who posted a letter bomb with insufficient postage stamps and who, on its return, unthinkingly opened his own letter.

Scientists measure speedy electrons in silicon

Posted: 11 Dec 2014 11:24 AM PST

Attosecond lasers provide the shortest light pulses yet, allowing observation of nature's most short-lived events. Researchers have used these lasers for the first time to take snapshots of electrons jumping from silicon atoms into the conduction band of a semiconductor, the key event behind the transistor. They clocked the jump at 450 attoseconds and saw the rebound of the crystal lattice 60 femtoseconds later: a delay 120 times longer than the jump itself.

3-D maps of folded genome: Catalog of 10,000 loops reveals new form of genetic regulation

Posted: 11 Dec 2014 09:44 AM PST

 In a triumph for cell biology, researchers have assembled the first high-resolution, 3-D maps of entire folded genomes and found a structural basis for gene regulation -- a kind of "genomic origami" that allows the same genome to produce different types of cells.

How birds get by without external ears

Posted: 11 Dec 2014 08:57 AM PST

Unlike mammals, birds have no external ears. The outer ears have an important function: they help the animal identify sounds coming from different elevations. But birds are also able to perceive whether the source of a sound is above them, below them, or at the same level. Now a research team has discovered that birds are able to localize these sounds by utilizing their entire head.

New way to turn genes on discovered: Technique allows rapid, large-scale studies of gene function

Posted: 10 Dec 2014 11:08 AM PST

Using a gene-editing system originally developed to delete specific genes, researchers have now shown that they can reliably turn on any gene of their choosing in living cells. The findings are expected to help researchers refine and further engineer the tool to accelerate genomic research and bring the technology closer to use in the treatment of human genetic disease.

Top-selling eye vitamins found not to match scientific evidence

Posted: 09 Dec 2014 10:37 AM PST

With Americans spending billions annually on nutritional supplements, researchers analyzed popular eye vitamins to determine whether their formulations and claims are consistent with scientific findings. They determined that some of the top-selling products do not contain identical ingredient dosages to eye vitamin formulas proven effective in clinical trials. They also found claims made on the products' promotional materials lack evidence.

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