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Growth hormone to boost athletic performance risks diabetes

Growth hormone to boost athletic performance risks diabetes

Use of growth hormone to boost athletic performance can lead to diabetes, reports a study published ahead of print in the British Journal of Sports Medicine.
The study reports the case of a 36 year old professional body-builder who required emergency care for chest pain.
He had lost 40 kg in 12 months, during which he had also experienced excessive urination, thirst, and appetite.
He admitted to using anabolic steroids for 15 years and artificial growth hormone for the past three. He had also taken insulin, a year after starting on the growth hormone.

Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves

Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves

Once roofed by ice for millennia, a 10,000 square km portion of the Antarctic seabed represents a true frontier, one of Earth's most pristine marine ecosystems, made suddenly accessible to exploration by the collapse of the Larsen A and B ice shelves, 12 and five years ago respectively. Now it has yielded secrets to some 52 marine explorers who accomplished the seabed's first comprehensive biological survey during a 10-week expedition aboard the German research vessel Polarstern.
While their families at home in 14 countries were enjoying New Year's dinners, experts on the powerful icebreaking research ship were logging finds from icy waters as deep as 850 meters off the Antarctic Peninsula – an area rapidly changing in fundamental ways.

Less Estrogen = More Obesity

Less Estrogen = More Obesity

Any dieter can tell you: Body weight is a function of how much food you eat and how much energy you use. The trick to maintaining a healthy weight lies in regulating the balance. Now new research from Rockefeller University suggests that brain cell receptors linked to sex hormones may play a role in the process by which we maintain that balance.
The findings show that metabolic syndrome, a cluster of conditions that includes obesity, insulin resistance and reduced physical activity, occurs in female mice when estrogen signaling in specific areas of the brain is shut down.
“It is well documented that mice missing the gene for estrogen receptor a become obese,” says Pfaff, head of the Laboratory of Neurobiology and Behavior.

The celestial whirligig

The celestial whirligig

Comet McNaught, the Great Comet of 2007, has been delighting those who have seen it with the unaided eye as a spectacular display in the evening sky. Pushing ESO's New Technology Telescope to its limits, a team of European astronomers have obtained the first, and possibly unique, detailed observations of this object.

When God sanctions killing, the people listen

When God sanctions killing, the people listen

New research published in the March issue of Psychological Science may help elucidate the relationship between religious indoctrination and violence, a topic that has gained renewed notoriety in the wake of the September 11th terrorist attacks. In the article, University of Michigan psychologist Brad Bushman and his colleagues suggest that scriptural violence sanctioned by God can increase aggression, especially in believers.

Mentally insert whichever weapon or religious text you prefer if these examples offend you. Image: Association for Psychological Science

Fluid dynamics works on nanoscale in real world

Fluid dynamics works on nanoscale in real world

In 2000, Georgia Tech researchers showed that fluid dynamics theory could be modified to work on the nanoscale, albeit in a vacuum. Now, seven years later they've shown that it can be modified to work in the real world, too – that is, outside of a vacuum. The results appear in the February 9 issue of Physical Review Letters (PRL).
Understanding the motion of fluids is the basis for a tremendous amount of engineering and technology in contemporary life. Planes fly and ships sail because scientists understand the rules of how fluids like water and air behave under varying conditions. The mathematical principle that describe these rules wave put forth more than 100 years ago and are known as the Navier-Stokes equations.

What Is So Wrong About Intelligent Design?

What Is So Wrong About Intelligent Design?

In a thought-provoking paper from the March issue of The Quarterly Review of Biology , Elliott Sober (University of Wisconsin) clearly discusses the problems with two standard criticisms of intelligent design: that it is unfalsifiable and that the many imperfect adaptations found in nature refute the hypothesis of intelligent design.
Biologists from Charles Darwin to Stephen Jay Gould have advanced this second type of argument. Stephen Jay Gould's well-known example of a trait of this type is the panda's thumb. If a truly intelligent designer were responsible for the panda, Gould argues, it would have provided a more useful tool than the stubby proto-thumb that pandas use to laboriously strip bamboo in order to eat it.
ID proponents have a ready reply to this objection.

Nevada professor demonstrates new hydrogen fuel system

Nevada professor demonstrates new hydrogen fuel system

Northern Nevada energy consumers can be excused if they have a sense of "sticker shock" when their power bills come due following the holiday season. Or, that they have a feeling of powerlessness as the price of gasoline climbs to $3 per gallon.
They wonder: will the days of the $1 tank of gas ever return?
Thanks to research done by a University of Nevada, Reno professor in the area of hydrogen energy generation, soaring power bills could become a thing of the past. And, finding a power source for your car that costs as little as $1 per gallon could also soon become a welcome reality.
Manoranjan Misra, professor of materials science and engineering, recently received a $3 million research grant from the U.S.

New measure of sexual arousal found for both men and women

New measure of sexual arousal found for both men and women

According to a new study published in the latest issue of The Journal of Sexual Medicine and conducted in the Department of Psychology of McGill University, thermography shows great promise as a diagnostic method of measuring sexual arousal. It is less intrusive than currently utilized methods, and is the only available test that requires no physical contact with participants. Thermography is currently the only method that can be used to diagnose sexual health problems in both women and men. In fact, women and men demonstrated similar patterns of temperature change during sexual arousal with no significant differences between genders in the time needed to reach peak temperature.

Can Aspirin Help You Get Pregnant?

Can Aspirin Help You Get Pregnant?

Researchers at the University at Buffalo and the University of Utah are beginning a clinical trial to test whether aspirin can improve a woman's chances of becoming pregnant and of maintaining a pregnancy to term.
UB's portion of the study is funded by a $2.8 million grant from the National Institute of Child Health and Development.
The trial is aimed at women who have miscarried a pregnancy in the past year.
"In women who have had their first miscarriage, the reasons for losing that pregnancy are in many instances unknown," said Jean Wactawski-Wende, Ph.D., UB associate professor of social and preventive medicine and principal investigator of the UB clinical center.

Spitzer Telescope First To Crack Open Light of Faraway Worlds

Spitzer Telescope First To Crack Open Light of Faraway Worlds

NASA's Spitzer Space Telescope has captured for the first time enough light from planets outside our solar system, known as exoplanets, to identify signatures of molecules in their atmospheres. The landmark achievement is a significant step toward being able to detect possible life on rocky exoplanets and comes years before astronomers had anticipated.
"This is an amazing surprise," said Spitzer project scientist Dr. Michael Werner of NASA's Jet Propulsion Laboratory, Pasadena, Calif.

Do Campaign Contributions Improve Expertise In Congress?

Do Campaign Contributions Improve Expertise In Congress?

Do hard money contributions by interest groups to members of Congress contribute to better quality policy deliberations and outcomes in congressional committees? A new study conducted by political scientist Kevin M.