Word: problem
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With dozens of labs around the world working on the problem, the creation of stem-cell lines from embryos like these will happen sooner or later. But even when they do, scientists will have to learn how to coax them into producing useful tissues. They'll also have to make certain that both the cloning and the coaxing don't damage the cells in a way that make them not just ineffective but lethal. That's the danger with a different form of stem-cell production, announced this past November, in which skin cells are simply genetically reprogrammed to revert...
...fell to 36% in 2006, perhaps the lowest such ratio in the world. At the other end of the scale is the U.S., with a household consumption-GDP ratio of 72%. For years the U.S. has been consuming too much and saving too little. China has the opposite problem...
While it's good to hear a Republican acknowledging these basic truths, McCain faces an essential conundrum: he is calling for government activism in a party that believes, as Ronald Reagan said, that "government is part of the problem." McCain, who vehemently opposes new taxes, is proposing a cap-and-trade program to reduce carbon emissions that will increase energy prices significantly...
...people, gay and straight, assume gay men are worse at maintaining relationships than straight people are. I needed experts, answers. I was also curious if I should be so upset about my breakup. As a society, we treat single people over 30 with condescension or pity, but maybe the problem was that I had hurtled into a serious relationship too young. I know that in my 20s I had wanted to impress my family and my heterosexual friends with my stability. Maybe I should have waited...
...problem with romance is that it doesn't always deliver the goods. For all the joy it promises, it can also play us for fools, particularly when it convinces us that we've found the right person, only to upend our expectations later. Birth-control pills that mask a woman's ability to detect her mate's incompatible MHC are one way bad love can slip past our perimeters. Adrenaline is another. Any overwhelming emotional experience that ratchets up your sensory system can distort your perceptions, persuading you to take a chance on someone you should avoid...