Word: stems
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...abortion, Romney says he simply changed his mind. He recalls that it happened in a single revelatory moment, during a Nov. 9, 2004, meeting with an embryonic-stem-cell researcher who said he didn't believe therapeutic cloning presented a moral issue because the embryos were destroyed at 14 days. "It hit me very hard that we had so cheapened the value of human life in a Roe v. Wade environment that it was important to stand for the dignity of human life," Romney says. "We learn with experience. We gain perspective over time, but the principles remain the same...
...What rankles many in Massachusetts is that the liberal state has become the butt of many of Romney's jokes. But it did give Romney an opportunity to take the national stage on a pair of social issues that matter a lot to conservatives: stem-cell research and gay marriage. When the Massachusetts Supreme Court ruled on Nov. 18, 2003, that the state constitution mandates gay marriage, he undertook to amend the constitution to ban it. He also called for a federal constitutional amendment, getting to the right of McCain on the issue. And he went to war with...
...migraine, scientists discovered, the trigeminal nerve practically floods the brain with pain signals. The more researchers learn about the trigeminal nerve, the more they believe that it is involved in all types of primary headaches, including tension and cluster headaches. The differences in the headache types seem to stem from what activates the trigeminal nerve and how it responds...
...scientists are focusing on a wave of electrical activity that spreads across the brain just before a migraine and triggers the aura--the shimmering light show experienced by 1 in 5 migraine patients. Others wonder wheth-er there is some kind of migraine generator buried deep within the brain stem. Even when researchers think they know the order in which different parts of the brain turn on during an attack, they can't always be sure if one section is initiating an action or anticipating the need to respond...
...apart from forgiving some loans dating from Saddam Hussein's rule, they have been reluctant to take further steps, such as giving strong political backing to al-Maliki's government, using their influence with Iraqi Sunni leaders to halt the insurgency and, in the case of Syria, to stem the flow of insurgents from Syria into Iraq...