Archive for the ‘By Theme’ Category

Death of the mastadon - Thursday, November 19th, 2009

It’s one of the biggest puzzles of paleontology: Why did North America’s large mammals go extinct shortly after the glaciers melted about 15k years ago? New study suggests that hunters get the credit — or blame.

Fearing flu, finding vaccine - Thursday, November 12th, 2009

Flu vaccine is made in eggs, but that’s too slow for a major epidemic. How are vaccines made inside animal cells? What other methods can protect us against a fast-changing, deadly virus?

Apnea treatment = Golfer’s glory? - Thursday, November 5th, 2009

Golfer-doctor finds that treating apnea cuts golf scores; sees new motivator for wearing nighttime masks.

Tar sands - Thursday, October 29th, 2009

Canada’s oil-drenched sands give it the second-largest oil reserves in the world. Using the “tar sands” pollutes air and water, destroys forests and could cause cancer. Should we leave oil sands alone?

Internet: The fastest teacher? - Wednesday, October 21st, 2009

MRI scans of older people show major differences between searchers and non-searchers. After seven hours of Internet experience, those differences disappear. Honest? Could changing the brain be this easy?

Raising (Whooping) Crane - Thursday, October 15th, 2009

Ultralight aircraft are guiding crane chicks toward Florida wintering grounds. Dangers remain, but it’s a step ahead for Americas’ largest flying bird, once reduced to 21 animals.

Untangling cancer’s genetic trajectory - Thursday, October 8th, 2009

Until now, getting a picture of genetic change in a tumor over time has been next to impossible. A new study reveals that cancer’s genetic tangle gets more complicated with time.

Planetary limits: More than just global warming - Thursday, October 1st, 2009

Scientists propose 9 limits on human actions: Wrecking ozone, over-using fertilizer, killing species could block key “ecosystem services.” Are there natural limits to fresh water use and pollution?

Driving while blabbing - Thursday, September 17th, 2009

How many dead? Research and real-life experience prove that people die when drivers pick up the cellphone. Even worse: texting on the road!

Scraps of ancient textiles found - Thursday, September 10th, 2009

Flax, the basis for linen, was spun and dyed, and lost in the mud. More than 30,000 years later, microscopic flax fibers provide the first cord in archeological history.

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