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...changing the way that students perceive themselves, these schools are transforming communities. A study by Johns Hopkins in 2007 found that “Even when pre-existing differences between KIPP and comparison students are controlled in statistical analyses, KIPP students generally outperformed comparison school students on achievement measures.” KIPP schools and other similar institutions are largely successful because they invest in developing the identity of their students...
...laboratory of Jonathan Beckwith, a professor of microbiology and molecular genetics at Harvard Medical School, a team of researchers have discovered that warfarin—a compound found in blood thinners—interferes with not only the process of blood coagulation, but also the growth of the bacteria molecule that causes tuberculosis...
Warfarin was first discovered during the Great Depression when dairy cattle on a Wisconsin farm suffered excessive bleeding from consuming spoiled sweet red clover hay, which was later found to contain a warfarin-like compound that inhibits blood clotting...
...week for Harlem politicians. On March 3, Charlie Rangel, the chairman of the House Ways and Means Committee and 20-term representative from New York's 15th district, announced he would temporarily relinquish his stewardship of the powerful tax-writing body in the wake of an ethics investigation that found he violated protocol by accepting corporate-funded trips to the Caribbean. The decision came on the heels of scandal-scarred New York Governor David Paterson's announcement that he will not run for re-election in the fall. The synchronized setbacks of two longtime Harlem leaders have prompted a flurry...
...Historians will debate the causes of Iraq's vicious outpouring of sectarian violence after the American invasion in 2003 - was it a reaction to the suppression of religious identity under Saddam Hussein or an extension of the policies of American administrators who found it easiest to deal with Iraqis through a crude sectarian and ethnic prism? Whatever the cause, the sectarian leaders who prevailed in the elections enabled by the U.S. proved incapable of peacefully resolving their differences, which were instead settled in the streets. But as Iraq's fragile new democracy matures, its ever divisive identity politics are becoming...