Word: cellular
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...those checks is the T cell’s dependence on another cellular player: the antigen presenting cell. The APC is an omnivorous creature whose job, among other things, is to gobble up microbial invaders. To initiate the immune response, the APC coughs up a molecule from the bug it has eaten, latches onto a helper T cell and "presents" it with the target molecule, instructing the T cell to prepare its troops for war. This activation is tightly controlled. It cannot occur without the lock-step interaction of a several proteins on the surface of both cells-one of which...
Gusmorino says he would continue to look into negotiating cheaper phone rates, following the success he and Plants had in lowering rates last fall. Now, a focus could be on negotiating discount cellular phone service for students...
Recently, though, I came into possession of what may be the ultimate weapon for people like me who hate cell-phone abusers: the C-Guard "cellular firewall," a $900 device that jams cellular calls. My pal Roger Rodriguez, a gentle soul who works in TIME magazine's tech department, actually ordered one. "I wanted to try it out," he explained. He had a look in his eye that I recognized...
...which is roughly the size of a paperback novel. It has a short, ugly black antenna that screws on. For power, you can plug it into the wall or use a battery pack. It's simple to operate: you flip a switch, and the appliance does its thing, obliterating cellular transmissions in an area comparable to a medium-size movie theater. That's in cities; out in the country, where the distance between cells is greater, the device can take out one whole floor of a building...
CANCER-FREE CALLING INVENTOR: CALGON CARBON Studies on the potential dangers of cellular-phone radiation remain inconclusive, but WaveZorb, a thumbnail-size piece of carbon cloth that costs about eight bucks, could make them moot. Tests show that WaveZorb, adapted from military use, soaks up nearly 99% of microwave radiation--and doesn't interfere with performance. Each adhesive-backed unit lasts about six months and can be trimmed to fit any cell-phone earpiece. Too bad it can't screen calls as effectively...