Word: tree
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
...same time, the brain's white matter thickens. The white matter is composed of fatty myelin sheaths that encase axons and, like insulation on a wire, make nerve-signal transmissions faster and more efficient. With each passing year (maybe even up to age 40) myelin sheaths thicken, much like tree rings. During adolescence, says Giedd, summing up the process, "you get fewer but faster connections in the brain." The brain becomes a more efficient machine, but there is a trade-off: it is probably losing some of its raw potential for learning and its ability to recover from trauma...
...event is a chance "to invite the nation and the world to visit us and see Ole Miss today," says university chancellor Robert Khayat. "This is a very different place from 1962. I'm confident that they will see that." (Click here for photos of Barack Obama's family tree...
...bits of atmosphere were trapped in the layers. Drilling into the ice and fishing out samples--ice cores--that contain tiny bubbles of that ancient air can reveal the temperature, the concentration of greenhouse gases, even the ambient dust from the year that layer was formed. It's like tree rings but for climatic history. "In order to predict the future, we have to understand the past," says Minik Rosing, a geologist at the University of Copenhagen...
...former steelworkers' union leader and high school dropout, become Brazil's most popular President in a half-century. The oil find could make Brazil one of the world's largest crude producers, but even without that bounty, the economy has been growing as vigorously as a guava tree in the Amazon rain forest, allowing Brazil to start reducing its epic social inequality. Economic strength has also allowed the country to flex its diplomatic clout as the hemisphere's first real counterweight to the U.S. Lula led the creation of a bloc of developing nations, the G-20, to thwart...
...doesn’t realize teen soaps are supposed to be over the top,” let me make a few things clear. I love teen dramas. In my TV-watching prime, I religiously tuned in to “Everwood,” “One Tree Hill,” “The OC,” and many other similar series. I’ve seen nearly every episode of “Degrassi” and have been known to act out scenes on occasion. Why am I admitting my obsession with these...