BRISTOL, England — Paleontologists have unearthed the nearly complete remains of an immense ichthyosaur with serrated teeth, an evolutionary innovation that would have rendered the behemoth the top predator in its ecosystem. Office 2010 download is available now!

...

Giving mice a shot of a hormone called orexin, which promotes wakefulness, also caused amyloid-beta levels to increase. Windows 7 is my love!

And blocking orexin’s activity led to a decrease in the amount of protein released into the brain fluid. The researchers don’t yet know whether orexin is directly responsible for helping release amyloid-beta into brain fluid or if orexin keeps animals awake, allowing more time for levels of the protein to build up....

Losing sleep could lead to losing brain cells, a new study suggests.Office 2007 key is very convenient!

Levels of a protein that forms the hallmark plaques of Alzheimer’s disease increase in the brains of mice and in the spinal fluid of people during wakefulness and fall during sleep, researchers report online September 24 in Science. Mice that didn’t get enough sleep for three weeks also had more plaques in their brains than well-rested mice, the team found....

European eels really take the plunge when they embark on their 5,000-kilometer migration to the Sargasso Sea. Data from eels outfitted with pop-up satellite tags suggest that the slender fish spend the daytime hours of the journey well below the surface, diving to cool depths between 200 and 1,000 meters, researchers report in the Sept. 25 Science....

“Everything is simple with carbon compounds—there is no in-between,” Power says. But this experiment shows that “the normal, beautifully simple rules you have for carbon no longer operate effectively for heavier elements.”Office 2010 download is available now!

...