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News Intermediate (click "back" on your browser to return to home page)World News and Information Know the Score About Dangerous Drugs Like Steroids
Anabolic steroids, human growth hormones and nutritional supplements can
be all too tempting for young athletes trying to maximize their performance.
Now, the National Collegiate Athletic Association has adopted a Web-based
drug education and wellness program for student athletes to help them
make the right decisions. It's called "Choices in Sports" and was developed by Oregon
State University faculty members. The project was directed by Ray Tricker,
an associate professor in OSU's College of Health and Human Sciences,
and is an extension of his teaching and research for the past 16 years. "The NCAA is confident this site will provide student athletes and
athletic staff alike with a trusted resource that will be maintained by
the National Center for Drug Free Sport, the company selected by the NCAA
to administer its drug-testing collections process," says Mary E.
Wilfert, NCAA program coordinator for education outreach. "With this effort, the NCAA reinforces its programming to prevent
drug abuse and promote the health and well-being of its student athletes,"
Wilfert says. More information http://www.drugfreesport.com/choices/drugs/index.html
Scientists Create Antihydrogen European scientists say they have created enough antihydrogen — a type
of the mirror-image, antimatter stuff that fictionally powers spaceships
on Star Trek — to test a widely held basic model of the universe. While antihydrogen has been made before, the more than 50,000 atoms created
at the CERN web sites) particle accelerator in Geneva are "by far,
the most produced," said Jeffrey Hangst, a leader of the ATHENA collaboration,
one of two groups of physicists working on antihydrogen at CERN. Not all particle physicists agree with the new finding.
A spokesman for the competing ATRAP Collaboration at CERN said he doubts
that antihydrogen had been produced in the latest experiment. "Our
long experience with these very difficult experiments warns that observing
simultaneous positron and antiproton annihilation does not ensure that
antihydrogen has really been produced," Gabrielse said. ATHENA researchers, whose work appears in Thursday's issue of the journal
Nature, plan to make more antihydrogen to test the Standard Model, equations
that explain the nature of matter and energy. Antimatter is the mirror image of conventional matter with opposite properties.
Antimatter is destroyed whenever it collides with matter, turning both
into bursts of electromagnetic radiation. Scientists believe this process
was crucial to the fiery creation of the universe billions of years ago.
Why so little antimatter is made now in nature remains one of physics'
great dilemmas. Only modest levels have been detected in cosmic ray showers
and the nuclei of distant galaxies. Antimatter is difficult to make in the lab, too. Giant particle accelerators
at CERN and Fermilab near Chicago specialize in the quest. In the first
antimatter experiments a few years ago, only dozens of short-lived antimatter
particles were created. Hydrogen, the most abundant element, consists
of an electron orbiting a proton. Antihydrogen is the exact opposite;
a positron — an electron with a positive charge — orbiting an antiproton,
or a proton with a negative charge. The antimatter was short-lived; Hangst said it was annihilated when it
bumped into normal matter. Detectors picked up the unique signatures of
antimatter as it was destroyed, he said. David Christian of Fermilab said the ATHENA group appears to have made
antimatter in greater quantities. "They've got a lot more big steps
they need to make, but this one is a big step," However, Gabrielse said upcoming publications by his group "will
show how it is possible to be fooled. Our initial understanding of the
recent report makes it likely that we will present the case that the reported
observations do not prove that any antihydrogen was observed," he
said. They also want to study gravity's effect on antihydrogen. Some speculate
antimatter "falls up," but most scientists don't believe that
is the case, Hangst said. Using antimatter to power a starship or create
a weapon, meanwhile, is still in the realm of science fiction, he said.
Making antiprotons requires 10 billion times more energy than it produces.
For example, the antimatter produced each year at CERN could power a 100
watt light bulb for 15 minutes, Hangst said. |