Archives de 31 mars 2008

ScienceDaily picks

New Software Aids Researchers Analyzing Millions Of DNA Sequences:
(Mar. 31, 2008) — It took a global corps of scientists approximately $500 million and 13 years to identify the more than 35,000 genes of the human genome. Five years later, Boston College Biologist Gabor Marth and his research team have developed software that can analyze half a million DNA sequences in 10 minutes. »


Self-assembled Materials Form Mini Stem Cell Lab: « 
(Mar. 31, 2008) — Imagine having one polymer and one small molecule that instantly assemble into a flexible but strong sac in which you can grow human stem cells, creating a sort of miniature laboratory. And that sac, if used for cell therapy, could cloak the stem cells from the human body’s immune system and biodegrade upon arriving at its destination, releasing the stem cells to do their work. »


New Breed Of Cognitive Robot Is A Lot Like A Puppy:
(Mar. 31, 2008) — Designers of artificial cognitive systems have tended to adopt one of two approaches to building robots that can think for themselves: classical rule-based artificial intelligence or artificial neural networks. Both have advantages and disadvantages, and combining the two offers the best of both worlds, say a team of European researchers who have developed a new breed of cognitive, learning robot that goes beyond the state of the art. »


Robotic Minds Think Alike?:
(Mar. 31, 2008) — Most schoolchildren struggle to learn geometry, but they are still able to catch a ball without first calculating its parabola. Why should robots be any different? A team of European researchers have developed an artificial cognitive system that learns from experience and observation rather than relying on predefined rules and models. »

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