Scientists reported new evidence Wednesday that supports a provocative theory about cancer.
Three separate teams of scientists said they had, for the first time, shown that so-called cancer stem cells can be found naturally in brain tumors and early forms of skin and colon cancer.
Evidence has been mounting in recent years for the existence of these cells, which would be especially insidious. They are believed to resist standard chemotherapy and radiation and fuel the growth of tumors and relapses.
Originally published on Wed August 1, 2012 4:05 pm
American swimmer Nathan Adrian's name hasn't been on everyone's mind, the way that Michael Phelps' or Ryan Lochte's has. But he did something that even Lochte couldn't do this week: beat Yannick Agnel in a head-to-head race.
Adrian's time of 47.52 seconds in the men's 100-meter freestyle gave him his first individual gold medal, as he also beat James Magnussen of Australia, who came in second, and Brent Hayden of Canada.
Decorated fencer Mariel Zagunis, who carried the U.S. flag into Olympic Stadium as part of the London 2012 opening ceremony, lost in the bronze medal match in the sabre Wednesday afternoon, falling to Olga Kharlan of Ukraine, 15-10.
The loss means that Zagunis, 27, will leave London without a medal — there is no team sabre medal at this year's Olympics (we'll post more about that situation soon).
U.S. gymnast Danell Leyva has won the bronze medal in the men's all-around competition in London. The gold was taken by Japanese star Kohei Uchimura, while the silver medal went to Marcel Nguyen of Germany.
With a final score of 92.690, Uchimura was nearly 2 points ahead of Leyva, at 90.698. And with his win, Uchimura vanquished the disappointments of his 2008 Beijing, when his struggles on the pommel horse cost him a gold medal.
Originally published on Wed August 1, 2012 4:00 pm
While it does indeed appear that "economic activity decelerated somewhat over the first half of this year," the Federal Reserve also said in its policy statement this afternoon that it is not — as of yet — taking any news steps to give the economy a boost.
That rather ominous sounding pronouncement comes from Joseph Saluzzi, co-head of equity trading at Themis Trading LLC in Chatham, N.J., in a Bloomberg News report about what happened early this morning on Wall Street.