Word: act
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
...MIMIC works: Donors fork over a few white blood cells - specifically, peripheral blood mononuclear cells, or PBMCs, which include infection-fighting lymphocytes like T and B cells. The blood cells go into specially designed "tissue constructs," which are forged from collagen and endothelial cells and designed to act just like human skin (think a Barbie Dream House for white blood cells). Each construct is hunkered inside an individual well where the blood cells mingle with the faux tissue. As the blood cells get cozy, they flourish, and a teensy, homegrown, fully functioning human immune system is born...
VaxDesign's model may soften, if not sidestep, such devastating setbacks by allowing researchers to road test a vaccine in human immune systems earlier than ever before. In essence, the constructs act as "clinical trials in a test tube." When an experimental vaccine enters the tissue constructs, the simulated immune system will sound the alarm, just as it would inside a human. Then, it does what an immune system does best - whips up antibodies. If the vaccine is successful, the antibodies will wipe out the targeted disease the next time it shows up. Best yet, researchers can test hundreds...
Because climate change is essentially a political problem, and the language of politics is symbolism. Just because an act is symbolic doesn't mean it empty. The only way to truly reduce greenhouse gas emissions, to take the pressure off global warming, is an international regime that puts a cap and a price on climate pollution. And the only way that will happen is if politicians around the world become convinced that climate change is an issue that matters to people, one that will make them change the way they live, buy - and vote. "Unlike most of the issues that...
Still, the Bhutanese remain uncomfortable with the changes under way and especially with one basic political act: mudslinging. Bhutan is a fiercely traditional place, polite and formal. Slow vehicles pull over to let faster cars go by. Etiquette dictates that you wear formal clothes in the presence of the national flag. The vast majority of the nation's 700,000 people subscribe to ex-King Jigme Singye's emphasis on something he calls gross national happiness, which measures not just wealth but how content, healthy and well educated people are, as well as the state of the environment and strength...
...could say the same thing lately for Fox News Channel itself. Fox hasn't gone soft, but from watching its coverage lately, I get a sense that the haven for conservative hosts, and viewers alienated by liberal news, needs to figure out its next act. Fox News is not simply a mouthpiece for the Bush White House: it rose with Bush after 2000 and 9/11, was played on TVs in his White House and reflected the same surety and flag-lapel-pin confidence in its tone and star-spangled look. It was not just a hit; it was the network...