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...connect a place or a person with the desire for more drugs. Maze showed that even after a week of abstinence, mice given a new dose of cocaine still had elevated levels of gene activation in the nucleus accumbens, meaning G9a levels were still low. It is not known how long these changes can last. Maze also showed that when he intervened and raised G9a levels, the mice were less attracted to cocaine...

Author: /time Magazine | Title: How Cocaine Scrambles Genes in the Brain | 1/8/2010 | See Source »

Scientists often warn against anthropomorphism - the attribution of human characteristics to animals or even nonliving things. But it's hard to resist the charm of Labroides dimidiatus, a species of fish otherwise known as the bluestreak cleaner wrasse. These colorful little critters make their living in coral reefs by setting up cleaning stations where larger fish - often predators that might otherwise gobble them up - can stop by to have their skin cleaned. The wrasses busy themselves like car-wash attendants fussing around a sports car, nibbling off parasites, dead tissue and other blemishes and nourishing themselves in the process...

Author: /time Magazine | Title: How Fish (Yes, Fish) Punish One Another | 1/7/2010 | See Source »

Flier, who had known Ševčenko since 1991, said that Ševčenko was not the kind of scholar who spent all of his time isolated in his study, absorbed in his own work—instead, he was a generous and approachable professor who often invited students to lunch. The world of historical scholarship, Flier said, will miss Ševčenko as someone who had great command of the field—but Flier added that he will remember his friend best for his warmth and grace...

Author: By Xi Yu, CRIMSON STAFF WRITER | Title: Eminent Byzantinist Dies, Leaves Legacy of Open-Minded Scholarship | 1/7/2010 | See Source »

...foreign tourists to use as bargaining chips with the central government. Economic and developmental issues - Yemen's most volatile regions are among those hardest hit by drought and government neglect - are at the heart of most of those conflicts, especially the war between the government and Shi'ite rebels, known as Houthis, that is being waged in the northern province...

Author: /time Magazine | Title: Yemen: The Most Fragile Ally | 1/7/2010 | See Source »

...jihadi websites, had seemed to be an ideal candidate for a top-priority espionage mission: penetrating the al-Qaeda circle around Ayman al-Zawahiri, the movement's top ideologue and second-in-command who is believed to be hiding in Pakistan's tribal wilds. Al-Balawi was a known presence on radical Islamic websites; he was Arab; and, like al-Zawahiri, he was a trained doctor whose medical skills were needed in treating al-Qaeda and Taliban war casualties...

Author: /time Magazine | Title: CIA Bomber Was No Double Agent, Say Jordanians | 1/7/2010 | See Source »

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