[tt] KurzweilAI.net Daily Newsletter

Wed Apr 16 14:19:00 UTC 2008

KURZWEILAI.NET NEWSLETTER

NEWS
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A Bang, a Whimper, and Another
Bang?
ScienceNOW Daily News April 9, 2008
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The relatively quiet black hole at
the center of our Milky Way galaxy
could one day reignite, spewing
forth so much radiation that the sky
would never darken. That grim
scenario has become more likely
based on a new survey by Liverpool
John Moores University astronomers.
They used data from the Sloan
Digital Sky Survey to survey
spectral lines...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8437&m=40924

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Corn Primed for Making Biofuel
Technology Review April 16, 2008
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Researchers have created three
strains of genetically modified corn
to manufacture enzymes that break
down the plant's cellulose into
sugars that can be fermented into
ethanol. Incorporating such enzymes
directly into the plants could
reduce the cost of converting
cellulose into...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8436&m=40924

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Movies of biological and chemical
molecules made for first time
KurzweilAI.net April 16, 2008
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Argonne National Laboratory
scientists have developed accurate
techniques for making movies of
actual biological and chemical
molecules for the first time. X-ray
movie reveals movement of DNA
molecule Biological and organic
molecules in solution are far more
complex than the standard
crystalline structures of salt or
metals since they are...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8435&m=40924

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Toward a Quantum Internet
Technology Review April 15, 2008
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Northwestern University researchers
have build a quantum logic gate--a
fundamental component of a quantum
computer--within an optical fiber,
using entangled photon pairs. The
gate could be part of a circuit that
relays information securely, over
hundreds of kilometers of fiber,
from one quantum computer to
another. It could also be used on
its...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8434&m=40924

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Researchers create first thermal
nanomotor
KurzweilAI.net April 15, 2008
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Researchers from the Universitat
Autonoma de Barcelona have created
the first nanomotor propelled by
changes in temperature. The
"nanotransporter" consists of a
carbon nanotube covered by a shorter
concentric nanotube that can move
back and forth to transport cargo
when heated on one end. Movement can
be controlled with a precision of
less than...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8433&m=40924

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Neanderthals speak out after 30,000
years
New Scientist news service April 15, 2008
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Robert McCarthy, an anthropologist
at Florida Atlantic University in
Boca Raton has used new
reconstructions of Neanderthal vocal
tracts to simulate the voice. He
inferred the dimensions of the
larynx of a Neanderthal based on its
skull. He says the ancient human's
speech lacked the "quantal vowel"
sounds that underlie modern...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8432&m=40924

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Molecule prompts blood stem cells
to help repair heart damage in
animal model
PhysOrg.com April 15, 2008
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University of Texas Southwestern
Medical Center researchers used
drug-treated blood stem cells to
repair heart damage in an animal
model. They screened about 147,000
molecules to find one that could
transform human blood stem cells
into a form resembling immature
heart cells. When they implanted
blood stem cells activated by this
compound into...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8431&m=40924

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New nanotube sensor can
continuously monitor minute amounts
of insulin
PhysOrg.com April 15, 2008
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Vanderbilt University researchers
have built a sensor that uses a
carbon nanotube electrode in a
three- microliters chamber to
continuously detect minute amounts
of insulin produced by pancreatic
islet cells, allowing for assessing
their health in real time. This
microphysiometer will allow
researchers to test the effects of
immunosuppressive...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8430&m=40924

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Laser beams to the brain reveal
seizures in real time
NewScientistTech April 15, 2008
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University of Florida researchers
have used a laser beam to detect
areas of a mouse brain involved in
an epileptic seizure. (Huabei Jiang)
The laser-induced PAT (photoacoustic
tomography) procedure involves
shining a laser beam through the
skull. Cortical areas involved in
the seizure absorb more energy,
which is converted to sound...
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8429&m=40924

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