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Gizmorama - Satellites used for cloud studies
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Good Morning,
Recently, the Phoenix Lander has been sending back high
resolution images of Mars. Here is a link to the pictures
and a more on the Phoenix Mars mission...
http://fawkes3.lpl.arizona.edu/images.php?gID=0&cID=8
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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Satellites used for cloud studies
U.S. space agency scientists say they've found clouds-- long
thought of as obstructions to satellite views of the Earth's
surface -- are actually valuable. National Aeronautics and
Space Administration researchers said they are learning cloud
characteristics by using a NASA constellation of satellites
called the "A-train." Using instruments in those satellites,
scientists say they've discovered they can see deep inside the
clouds, collecting first-of-a-kind measurements and shedding
new light on the link between clouds, pollution and rainfall.
Jonathan Jiang of NASA's Jet Propulsion Laboratory and
colleagues used the A-Train sensors to find South American
clouds infused with airborne pollution tend to produce less
rain than their "clean" counterparts during the region's dry
season. The five satellites orbit the Earth only eight minutes
apart and can be thought of as an extended satellite observatory,
providing unprecedented information about clouds, aerosols and
atmospheric composition, NASA said. The research was presented
Tuesday in Fort Lauderdale Fla., during the American Geophysical
Union's 2008 Joint Assembly.
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Protein may help reduce triglycerides
U.S. scientists say they've identified a potential target to
treat hypertriglyceridemia -- a lipid disorder usually seen
in obese and diabetic people. Diabetes researchers at the
John Rangos Sr. Research Center at the Children's Hospital
of Pittsburgh said they studied the role of a protein known
as Forkhead Box O1, or FoxO1, that mediates the metabolism
of glucose and cholesterol. In the laboratory, the researchers
were able to curb the secretion of triglycerides in animals
that were obese and diabetic by inhibiting the production of
FoxO1 in the liver. Elevated triglyceride levels have been
identified as a risk factor for heart disease. "Our latest
findings suggest that we may eventually be able to develop
drug therapies that inhibit FoxO1, which would thereby
inhibit the production of proteins that lead to elevated
triglyceride levels in people who are obese and/or who
suffer from type 2 diabetes," said Assistant Professor Henry
Dong, a diabetes researcher and senior author of the study.
"Hypertriglyceridemia is a known risk factor for developing
heart disease, the leading cause of death in the United States."
The research that included Adama Kamagate appears in the
June issue of the Journal of Clinical Investigation.
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Titanium doors to increase soldier safety
U.S. government scientists say the next generation of combat
vehicles will be equipped with titanium alloy doors to provide
increased safety for soldiers. Oak Ridge National Laboratory
researchers said the doors would be made using low-cost titanium
powders in a non-melt consolidation process they developed that
will reduce the amount of energy required and the cost of
manufacturing titanium parts from powders by up to 50 percent.
"We recently exhibited the new low-cost titanium alloy door made
by ORNL for the Joint Light Tactical Vehicle, which is a next-
generation combat vehicle," said Bill Peter, an ORNL researcher.
"By using a titanium alloy for the door, BAE Systems was able to
reduce the weight of its vehicle yet, at the same time, decrease
the threat of armor-piercing rounds." Instead of using
conventional melt processing using titanium powders, with the
new method the powders remain in their solid form during the
entire procedure, Peter said. "This saves a tremendous amount
of energy required for processing, greatly reduces the amount
of scrap and allows for new alloys and engineered composites,"
he said. The researchers expect lightweight corrosion-resistant
titanium alloys to make their way into many other products.
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