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Good Morning,
Did you see that HP is rolling out a new lightweight laptop
that will have a base price of $500 and will be marketed to
the education market. Here is a link if you want to read
more... http://origin.mercurynews.com/business/ci_8848583
Until Tomorrow,
Erin
Questions? Comments? Email me at: mailto:gizmo@gophercentral.com
Email your comments
P.S. You can discuss this issue or any other topic in the new
Gizmorama forum. Check it out here...
http://archives.gophercentral.com/forum/forums/forum-view.asp?fid=23
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Reprogrammed stem cells reduce Parkinson's
U.S. scientists say transplanted neurons from reprogrammed
stem cells reduced symptoms of Parkinson's disease in laboratory
rats. Lead author Marius Wernig of the Whitehead Institute for
Biomedical Research in Cambridge, Mass., said it is the first
demonstration that "reprogrammed cells can integrate into the
neural system or positively affect neurodegenerative disease."
The findings are published in the online early edition of the
journal PNAS. Researchers in Rudolf Jaenisch's laboratory
showed that the brains of mice with a human sickle-cell anemia
disease trait could be successfully treated with skin cells that
had been reprogrammed to an embryonic stem cell-like state,
Whitehead said Monday in a release. The researchers, in
collaboration with Harvard Medical School, also found that in
vitro reprogrammed cells can in principle be used to treat
Parkinson's disease. "It's a proof of principle experiment that
argues, yes, these cells may have the therapeutic promise that
people ascribe to them," Jaenisch said in a statement.
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Study warns of the danger of nanosilver
U.S. scientists are warning of nanosilver's dangers as
nanoparticles of silver become commonplace in consumer goods.
Silver nanoparticles, valued for their antibacterial properties,
are being used in a range of products, including such diverse
items as socks, bandages and washing machines. "The general
public needs to be aware there are unknown risks associated
with the products they buy containing nanomaterials," Arizona
State University Professor Paul Westerhoff and researcher Troy
Benn said, noting ordinary laundering can remove substantial
amounts of the nanosilver particles from socks impregnated
with the material. The scientists suggest the particles could
enter waterways where they might have negative effects on
aquatic organisms as well as humans. "This is the first report
of anyone looking at the release of silver from this type of
manufactured clothing product," said the authors. "If you start
releasing ionic silver, it is detrimental to all aquatic biota.
Once the silver ions get into the gills of fish, it's a pretty
efficient killer," said Benn. The toxicity of nanoparticle
silver, said Westerhoff, has yet to be determined. Westerhoff
and Benn presented their findings this week in New Orleans
during a national meeting of the American Chemical Society.
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Mosquitoes resisting synthetic insecticide
Scientists from the University of Burdwan in India say
mosquitoes that spread disease are increasingly becoming
resistant to synthetic insecticides. But the researchers
suggest berries of a weed common to India, Solanum villosum,
might have the potential for keeping mosquitoes at bay. S.
villosum -- a member of the nightshade family -- is known for
its medicinal properties and commonly used as an ayurvedic herb.
The scientists used juice and extracts from the berries of S.
villosum on a species of mosquitoes (Stegomyia aegypti) that can
spread a number of viruses, including dengue fever and yellow
fever. They discovered S. villosum was particularly effective
at eliminating S. aegypti larvae. Although it was not as potent
as a chemical insecticide such as Malathion, the authors suggest
plant extracts from S. villosum have the potential for use in
stagnant water where the mosquitoes breed. The research by
Nandita Chowdhury, Anupam Ghosh and Goutam Chandra appears
online in the BioMed Central journal Complementary and
Alternative Medicine.
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