Word: repairable
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Externalists, who tend toward the political left, say that America's racial problems are to be addressed through outside interventions (affirmative action, busing and other government programs to repair the damage of the past and enforce racial justice). Internalists, who are apt to be conservative, stress solutions that require efforts from the inside: education, hard work, self-motivation, morale, bourgeois values, deferred gratification, the old immigrant virtues (turn off the TV, shut down the gangsta...
...renovations will include a complete overhaul of its athletic fields, playground repair and replacement, landscaping improvement and new sidewalk lighting, Barrios said...
...rigid, that its nerve cells, or neurons, could never regenerate themselves. If you nick your finger with a knife, the cut will heal in a few days because your skin has the ability to generate new cells. But when something bad happens to the brain, it doesn't repair itself. Why's that? "The brain is not plastic," says Snyder. "It doesn't make new cells. You are born with more brain cells than you need, and you lose them progressively and get dumber and dumber as you get older--or so went the conventional wisdom...
...kind of blood cells the body needs. The skin and liver have their own stem cells. "Maybe there is a brain stem cell, a mother cell that gives rise to all types of brain cell," Snyder says he wondered. "I wanted to find this cell and harness it to repair injured brains...
TOMORROW: Growing functional patches of heart muscle or coaxing existing heart-muscle cells to repair themselves...