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Wednesday, October 8, 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Working memory hinders learning in schizophrenia

Posted: 07 Oct 2014 03:42 PM PDT

Trouble with working memory makes a distinct contribution to the difficulty people with schizophrenia sometimes have in learning, according to a new study. The researchers employed a specially designed experiment and computational models to distinguish the roles of working memory and reinforcement learning.

New 'lab-on-a-chip' could revolutionize early diagnosis of cancer

Posted: 07 Oct 2014 10:14 AM PDT

A breakthrough paper has been published describing researchers' invention of a miniaturized biomedical testing device for exosomes. "Exosomes are minuscule membrane vesicles -- or sacs -- released from most, if not all, cell types, including cancer cells," said one chemist. "They were once thought to be trash bags containing unwanted cellular contents. However, in the past decade scientists realized that exosomes play important roles in many biological functions through capsuling and delivering molecular messages in the form of nucleic acids and proteins from the donor cells to affect the functions of nearby or distant cells."

'Cyberwar' against cancer gets a boost from intelligent nanocarriers

Posted: 07 Oct 2014 10:14 AM PDT

Cancer possesses special traits for cooperative behavior and uses intricate communication to distribute tasks, share resources, and make decisions. New research now offers additional insight into the lethal interaction between cancer cells and the immune system's communications network.

Small spills at gas stations could cause significant public health risks over time

Posted: 07 Oct 2014 07:31 AM PDT

A new study suggests that drops of fuel spilled at gas stations — which occur frequently with fill-ups — could cumulatively be causing long-term environmental damage to soil and groundwater in residential areas in close proximity to the stations.

A warm dark matter search using XMASS

Posted: 07 Oct 2014 06:24 AM PDT

The XMASS collaboration has reported its latest results on the search for warm dark matter. Their results rule out the possibility that super-weakly interacting massive bosonic particles constitute all dark matter in the universe.

Computers turned into powerful allies in fight against AIDS

Posted: 07 Oct 2014 06:23 AM PDT

The battle against AIDS cannot be won in the laboratory alone. To fight the potentially deadly virus that 34 million people are suffering from we need help from computers. Now research turns computers into powerful allies in the battle.

MRI technique detects evidence of cognitive decline before symptoms appear

Posted: 07 Oct 2014 06:23 AM PDT

A magnetic resonance imaging technique can detect signs of cognitive decline in the brain even before symptoms appear, according to a new study. The technique has the potential to serve as a biomarker in very early diagnosis of preclinical dementia.

E-car sharing comes of age

Posted: 07 Oct 2014 06:22 AM PDT

Every day, private motor transportation causes traffic jams, pollution and a shortage of parking spaces. The number one mode of transportation – the automobile – is one of the biggest burdens on urban spaces and their inhabitants. But does it have to be this way? Other options have emerged that offer reliable, low-emission mobility in cities and the surrounding areas: not just electromobility, but digital networking and car sharing, too.

Fundamentals of physics confirmed: Experiments testing Einstein's time dilation and quantum electrodynamics

Posted: 07 Oct 2014 06:22 AM PDT

The special theory of relativity and quantum electrodynamics are two important fundamentals of modern physics. They have been experimentally verified many times already and both have passed all the tests so far. In recent experiments, researchers in Germany accelerated ions to velocities near the speed of light and illuminated them with a laser. The results confirm the time dilation predicted for high velocities in the theory of relativity with an accuracy that has never before been achieved.

Private telephone conversations: Dynamic encryption keeps secrets

Posted: 07 Oct 2014 06:21 AM PDT

Scientists have invented a new way to encrypt telephone conversations that makes it very difficult to 'eavesdrop'. The invention can help to curb industrial espionage.

Printing in the hobby room: Paper-thin and touch-sensitive displays on various materials

Posted: 07 Oct 2014 06:21 AM PDT

Until now, if you want to print a greeting card for a loved one, you can use colorful graphics, fancy typefaces or special paper to enhance it. But what if you could integrate paper-thin displays into the cards, which could be printed at home and which would be able to depict self-created symbols or even react to touch? Those only some of the options computer scientists can now offer. They have just developed an approach that in the future will enable laypeople to print displays in any desired shape on various materials and therefore could change everyday life completely.

Talking to your car is often distracting

Posted: 07 Oct 2014 06:16 AM PDT

Two new studies show that despite public belief to the contrary, hands-free, voice-controlled automobile infotainment systems can distract drivers, although it is possible to design them to be safer. Apple's Siri and Chevrolet's MyLink were most distracting, while Toyota's Entune was least distracting, the study showed.

2014 Nobel Prize in Physics: Invention of efficient blue light-emitting diodes

Posted: 07 Oct 2014 04:17 AM PDT

The 2014 Nobel Prize in Physics has been awarded to Isamu Akasaki, of Meijo University in Nagoya and Nagoya University, Japan; Hiroshi Amano, of Nagoya University, Japan; and Shuji Nakamura of the University of California, Santa Barbara, CA, USA "for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources."

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