Word: celle
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Dates: during 2000-2000
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...miss the shiny new glass-and-stone headquarters of UUNet and PSINet, AMS and UUcom, commercial titans of the new Washington. You can't miss the new-economy entrepreneurs in their Lexuses and Land Rovers doing deals on cell phones as they zip around I-66 and Routes 7, 50 and 123. And you certainly can't avoid the traffic. Fifteen years ago, Fairfax, Loudoun and Arlington counties in northern Virginia were nothing but sleepy residential communities and remote farmland, places to drive through on the way to Dulles Airport or concerts at Wolf Trap or camp sites near Front...
Theirs is a world of cell phones, mopeds, long days at work and long evenings in coffee shops. All four have complicated, busy lives, careers they forged on their own and ambitions to take them to the top. They have grown up to be self-reliant in uncertain times, with little guidance from their elders. Sex before marriage--"eating rice before the bell," as it is sometimes called--is the norm. All have acquaintances who do drugs, a haven for those who don't know where else...
...course, no one knows for sure whether Arkin or anyone else will be able to develop a working computer model of the cell. But it's the sort of project that could keep scientists busy for another 100 years...
Even more exciting was the fact that the source of these new cells was neural-stem cells, master cells with the ability to morph into any type of brain cell, depending on the chemical signals they receive as they grow. Early studies hint that they may even belong to a more primitive population of stem cells that can form anything from skin to blood to liver. Gage showed that a part of the hippocampus contains actively developing neural-stem cells; he further speculated that this regeneration may eventually be controlled by the timely addition or subtraction...
Today neurobiologists no longer argue about whether or not the brain can grow new cells. Instead they're trying to figure out how this cell growth can be harnessed to treat everything from epilepsy to stress to depression. Some have observed that during stress, for example, neurogenesis in the learning center of the brain in several animal species slows considerably--which may help explain depressive episodes that accompany stress...