In 1968, death was redefined as occurring when the brain ceased to function, although the heart may continue to beat with the support of drugs, and breathing is sustained by a ventilator.
One possible explanation for this counterintuitive observation is that fC is indeed an intermediate of an active DNA demethylation process[ 1b, 2, 3, 5a, 12] and that active demethylation events in the brain cease with age.
The plausibility of this scenario depends upon the temperatures at which ice crystals form relative to the temperatures at which nerves and brains cease to function; and on the magnitude of thermal differentials within an animal's body during rapid cooling.
Once it stops, brain function ceases.
When stimulation by the brain hormone ceases, ecdysone is no longer secreted, and, in its absence, all insect growth and metamorphosis are halted.
However, the new BBC brain trust ceased shortwave broadcasting to North America, Australia and New Zealand last July, disenfranchising millions of listeners.
Mr. Tools suffered a severe stroke on Nov. 11, and his remaining brain function ceased shortly after noon yesterday.
But their cause has been taken up by the anti-abortion movement, especially those members of Terri Schiavo's family who sought to keep feeding her years after her brain activity ceased.
The decision to disconnect life-support equipment was made by his family after it became clear that Officer Infantes could not breathe on his own and that the flow of blood to his brain had ceased.
