Δευτέρα 23 Σεπτεμβρίου 2013

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


NASA Curiosity rover detects no methane on Mars

Posted: 22 Sep 2013 07:28 PM PDT

Data from NASA's Curiosity rover has revealed the Martian environment lacks methane. This is a surprise to researchers because previous data indicated positive detections.

Is this my finger? Sensory illusion study provides new insight for body representation brain disorders

Posted: 22 Sep 2013 05:59 PM PDT

People can be easily tricked into believing an artificial finger is their own, shows a new study. The results reveal that the brain does not require multiple signals to build a picture body ownership, as this is the first time the illusion has been created using sensory inputs from the muscle alone.

Creating electricity with caged atoms

Posted: 22 Sep 2013 12:51 PM PDT

Clathrates are crystals consisting of tiny cages in which single atoms can be enclosed. These atoms significantly alter the material properties of the crystal. By trapping cerium atoms in a clathrate, scientists have created a material which has extremely strong thermoelectric properties. It can be used to turn waste heat into electricity.

Protein identified that regulates cellular trafficking, potential for anti-cancer therapy

Posted: 22 Sep 2013 12:51 PM PDT

Scientists have identified a new regulator for the intracellular trafficking of proteins between the endoplasmic reticulum and Golgi apparatus, which is a crucial process for maintaining homeostasis and prevention of human disease. The study provides a new avenue to investigate anti-cancer agents that target the regulatory protein UVRAG and/or intracellular trafficking process.

Formation of unusual ring of radiation around Earth explained

Posted: 22 Sep 2013 12:51 PM PDT

Since the discovery of the Van Allen radiation belts, scientists believed these belts consisted of two rings of highly charged particles. In February, scientists reported the discovery of a previously unknown third radiation ring -- a narrow ring that briefly circled the Earth for a month. Space scientists have successfully modeled and explained the unprecedented behavior of this third ring, and show that its energetic particles are driven by very different physics than the others.

Calming fear during sleep

Posted: 22 Sep 2013 12:51 PM PDT

A fear memory was reduced in people by exposing them to the memory over and over again while they slept. It's the first time that emotional memory has been manipulated during sleep, report scientists. The finding potentially offers a new way to enhance the typical daytime treatment of phobias through exposure therapy by adding a nighttime component. A common treatment for phobias is gradual exposure to the feared object until the fear is extinguished.

Scientists closer to universal flu vaccine after pandemic 'natural experiment'

Posted: 22 Sep 2013 12:50 PM PDT

Scientists have moved closer to developing a universal flu vaccine after using the 2009 pandemic as a natural experiment to study why some people seem to resist severe illness.

Propofol discovery may aid development of new anesthetics

Posted: 22 Sep 2013 12:49 PM PDT

Researchers for the first time have identified the site where the widely used anesthetic drug propofol binds to receptors in the brain to sedate patients during surgery.

A boost for cellular profiling

Posted: 22 Sep 2013 12:49 PM PDT

A team of researchers report a dramatically improved technique for analyzing the genes expressed within a single cell — a capability of relevance to everything from basic research to future cancer diagnostics.

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