Word: signallers
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Students left stranded in the elevator had been forced to use the emergency button to signal passers-by for help...
...there were ever a signal that women are ascending in corporate America, it came this month when Patricia Russo, above, left the heir apparent's office at Kodak to return to troubled Lucent Technologies as its CEO and rescuer in chief. Surveys show that more women are reaching the top rungs of the executive ladder than ever before: the number of FORTUNE 500 companies with female board members has jumped 25.8% since 1993. Sure, a few CEOs have had a hard time lately. But, ironically, that's just another sign of progress. As Julie Weeks, research director at the Washington...
...clock is ticking, your flight leaves in 40 minutes for that planning meeting in Washington, and you're still circling the airport parking lot in search of that ever-elusive space. Smart Park aims to put that nightmare to rest. Distributed by Signal-Park USA of Tempe, Ariz., the new system tells frantic business travelers exactly where the spots are. Electronic signs announce the available spaces in each row. As you're driving by, just watch for the brightly lighted LED--a green arrow if the spot is vacant, a red X if not. The secret is a sensor that...
...work was the first to show in animals, enough to put the system on alert. In the past this strategy hasn't worked in humans because our immune system, unlike those of other mammals, doesn't respond robustly enough to DNA alone. To amplify DNA's poor signal strength, Nabel's group sends in the "boost"--a crippled common-cold virus packed with a payload of viral antigens--a few days after priming, and the immune system goes into high gear. That's the theory, anyway...
...mosquito bite, for example, or an allergen--is inflammation. When the insect bites, the immune system uses cellular troops that have had no special training. Cells called leukocytes, neutrophils and mast cells routinely cruise the bloodstream sniffing for an unfamiliar chemical signature. If they find it, they signal for reinforcements that swarm to kill the invader--the equivalent of an infantry attack...