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Gizmorama - Software created to halt gypsy moth spread
"The Cutting Edge of Science Fact and Science Possibilities"
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Good Morning,
I hope you have found this weeks articles to be entertaining
and informative. This morning I found and article about
10 impossibilities conquered by science that I thought I
would share. Here is a link if you want to check it out...
http://technology.newscientist.com/channel/tech/dn13556-10-impossibilities-conquered-by-science.html
Have a great weekend,
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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Software created to halt gypsy moth spread
U.S. and British scientists say they've created a software
program to give land managers more efficient, cost-effective
ways of controlling gypsy moths. The computer model was developed
by biologists at Penn State University and Britain's University
of Cambridge to fight the spread of gypsy moths, which are
responsible for the defoliation of more than 1 million acres
of forest land each year. "Our model is state dependent, which
means that it recommends different management strategies
depending on the situation," said Penn State Associate Professor
Katriona Shea, who led the study. "Most managers currently use
the same strategy in all situations but our model suggests that
by tailoring their approach to a particular situation, managers
can be more effective in slowing the spread of invasive species."
Gypsy moths, introduced to North America in the late 1860s, have
spread throughout the northeastern United States and into the
Midwest. The researchers said their model might help slow or halt
the moths' spread into new areas, especially North Carolina,
Virginia, West Virginia, Ohio, Indiana, Illinois and Wisconsin.
The study is to appear this month in the journal Ecological
Applications.
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Nanoparticle chemo slows tumor growth
U.S. scientists said they have slowed the growth of tumors
using nanoparticles in a chemotherapy drug dose 1,000 times
smaller than currently used. Washington University School of
Medicine researchers in St. Louis said they focused a powerful
drug directly on tumors in rabbits using nanoparticles coated
with a fungal toxin called fumagillin. They found a drug dose
1,000 times lower than usually used markedly slowed tumor
growth. The nanoparticles are extremely tiny beads of an inert,
oily compound that can be coated with a wide variety of active
substances. In addition to fumagillin, the scientists said the
nanoparticles' surfaces held molecules designed to stick to
proteins found primarily on the cells of growing blood vessels,
allowing the nanoparticles to adhere to sites of blood vessel
proliferation where they released the fumagillin. Human trials
have also shown fumagillin can have neurotoxic side effects at
the high doses required by standard methods, the researchers
said, but the rabbits in the nanoparticle study showed no
adverse side effects. The nanoparticles will be tested this
year in preliminary human clinical trials, laying essential
groundwork for using the nanoparticles as therapeutic agents.
The research appears online in the FASEB Journal.
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3-PC WALKING SET
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What a great idea... this 3-piece set combines all the stuff
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GAO finds risks in NASA program
The U.S. Government Accountability Office says it's found
major risks to the successful development of NASA's replacement
for the space shuttle. The GAO, Congress' investigative arm,
examined two components of the National Aeronautics and Space
Administration's Constellation Program that's designed to send
humans to the moon and Mars: the Ares I Crew Launch Vehicle,
and the Orion Crew Exploration Vehicle. NASA is scheduled to
launch the program during 2015, five years after the Space
Shuttle's last mission. The GAO said it found Ares I, which
will have a solid rocket booster for its first stage and a
liquid-fueled second stage, risks excessive vibration during
launch and excessive weight. The GAO also said it's not known
how the fifth segment of the solid rocket's first stage will
affect the vehicle's flight characteristics. Federal
investigators also reported existing NASA facilities are
inadequate to test the new engine. Additionally, they said the
heat shield needed to allow the Orion vehicles to safely reenter
Earth's atmosphere is beyond the capabilities of current
manufacturing processes. The GAO concluded the space agency's
capacity to meet production and budget goals is uncertain,
partly because NASA is still defining many of the vehicles'
performance requirements.
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