Archivio per 19 agosto 2012

19
Ago
12

High Velocity Human Factors: The Funneling and Tunneling of Attention: Human Interactions in Safety Critical Systems

See on Scoop.itBounded Rationality and Beyond

Student and teenage drivers are often told, “keep your eyes on the road.” Seasoned drivers are told “don’t text or talk on the cellphone while driving.” These admonitions are spot-on. In addition to this, one rarely hears someone telling drivers “pay attention to the road.” After all what is the point of LOOKING but not SEEING? Meaning, that one should not only look at the road, but also cognitively register the stimuli (other cars, pedestrians, etc.) on the road, including their intentions, trajectories, unexpected appearances of new stimuli, etc. Thus, a good driver has to monitor, by paying attention, to the present state of affairs on the road and the potential future. He must do all this, while simultaneously attending, albeit with automaticity (for the expert driver), to other driving tasks such as steering, keeping the gas pedal depressed; and, at times, to other undesirable secondary tasks like arguing with one’s colleague on some abstruse or mundane topic. Say, about the Boson Higgs [God] particle or where to go for lunch.

See on hvhfsciences.blogspot.it

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19
Ago
12

Harvard cracks DNA storage, crams 700 terabytes of data into a single gram

See on Scoop.itSocial Foraging

A bioengineer and geneticist at Harvard’s Wyss Institute have successfully stored 5.5 petabits of data — around 700 terabytes — in a single gram of DNA, smashing the previous DNA data density record by a thousand times.

 

The work, carried out by George Church and Sri Kosuri, basically treats DNA as just another digital storage device. Instead of binary data being encoded as magnetic regions on a hard drive platter, strands of DNA that store 96 bits are synthesized, with each of the bases (TGAC) representing a binary value (T and G = 1, A and C = 0).

 

To read the data stored in DNA, you simply sequence it — just as if you were sequencing the human genome — and convert each of the TGAC bases back into binary. To aid with sequencing, each strand of DNA has a 19-bit address block at the start (the red bits in the image below) — so a whole vat of DNA can be sequenced out of order, and then sorted into usable data using the addresses.

See on www.extremetech.com

19
Ago
12

Harvard cracks DNA storage, crams 700 terabytes of data into a single gram

See on Scoop.itSocial Foraging

A bioengineer and geneticist at Harvard’s Wyss Institute have successfully stored 5.5 petabits of data — around 700 terabytes — in a single gram of DNA, smashing the previous DNA data density record by a thousand times.

 

The work, carried out by George Church and Sri Kosuri, basically treats DNA as just another digital storage device. Instead of binary data being encoded as magnetic regions on a hard drive platter, strands of DNA that store 96 bits are synthesized, with each of the bases (TGAC) representing a binary value (T and G = 1, A and C = 0).

 

To read the data stored in DNA, you simply sequence it — just as if you were sequencing the human genome — and convert each of the TGAC bases back into binary. To aid with sequencing, each strand of DNA has a 19-bit address block at the start (the red bits in the image below) — so a whole vat of DNA can be sequenced out of order, and then sorted into usable data using the addresses.

See on www.extremetech.com

19
Ago
12

‘Superorganisations’ – Learning from Nature’s Networks

See on Scoop.itBounded Rationality and Beyond

Fritjof Capra, in his book ‘The Hidden Connections’ applies aspects of complexity theory, particularly the analysis of networks, to global capitalism and the state of the world; and eloquently argues the case that social systems such as organisations and networks are not just like living systems – they are living systems. The concept and theory of living systems (technically known as autopoiesis) was introduced in 1972 by Chilean biologists Humberto Maturana and Francisco Varela.

 

This is a complete version of a ‘long-blog’ written by Al Kennedy on behalf of ‘The Nature of Business’ blog and BCI: Biomimicry for Creative Innovation www.businessinspired...

See on thenatureofbusiness.org

19
Ago
12

Charles Limb: Building the musical muscle | Video on TED.com

See on Scoop.itBounded Rationality and Beyond

TED Talks Charles Limb performs cochlear implantation, a surgery that treats hearing loss and can restore the ability to hear speech. But as a musician too, Limb thinks about what the implants lack: They don’t let you fully experience music yet.

See on www.ted.com




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