السبت، 16 مارس 2013

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Swarm intelligence: New collective properties of swarm dynamics uncovered

Posted: 15 Mar 2013 06:59 AM PDT

A new study of animal swarms uncovers some new features of their collective behavior when overcrowding sets in. Swarming is the spontaneous organized motion of a large number of individuals. It is observed at all scales, from bacterial colonies, slime molds and groups of insects to shoals of fish, flocks of birds and animal herds. Now physicists have uncovered new collective properties of swarm dynamics.

Smallest vibration sensor in the quantum world

Posted: 15 Mar 2013 06:59 AM PDT

Carbon nanotubes and magnetic molecules are considered building blocks of future nanoelectronic systems. Their electric and mechanical properties play an important role. Researchers have now found a way to combine both components on the atomic level and to build a quantum mechanical system with novel properties.

Mindfulness at school reduces (likelihood of) depression-related symptoms in adolescents

Posted: 15 Mar 2013 06:59 AM PDT

Secondary school students who follow an in-class mindfulness program report reduced indications of depression, anxiety and stress up to six months later. Moreover, these students were less likely to develop pronounced depression-like symptoms.

How can we stlil raed words wehn teh lettres are jmbuled up?

Posted: 15 Mar 2013 04:46 AM PDT

Researchers have taken an important step towards understanding how the human brain 'decodes' letters on a page to read a word. The work will help psychologists unravel the subtle thinking  mechanisms involved in reading, and could provide solutions for helping people who find it difficult to read, for example in conditions such as dyslexia.

Suicidal bacteria: Unicellular organisms occasionally poison themselves with a toxin

Posted: 15 Mar 2013 04:46 AM PDT

The cyanobacterium Synechocystis produces toxins that often lead to its own demise. Biologists have now determined the logic governing this mechanism..

Inspired by deep sea sponges: Creating flexible minerals

Posted: 15 Mar 2013 04:45 AM PDT

Scientists have imitated the skeleton of natural sea sponges to produce a new flexible mineral. the synthetic spicules are extremely flexible and are also able to transmit light waves even when they are bent.

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