After digesting a pathogen, a macrophage will present the antigen (a molecule, most often a protein found on the surface of the pathogen and used by the immune system for identification) of the pathogen to the corresponding helper T cell.
The Federal Communications Commission could be throwing a wrench in Verizon Communicationsâ strategy for offering super-fast upcoming 5G wireless service in the next few years. The strategy depends in part on Verizon $1.8 billion deal to acquire XO Communicationsâ national fiber optic network and lease rights to XOâs high frequency airwave rights. But this week, the FCC said it was pausing its usual 180-day review period for evaluating the deal with XO, owned by billionaire investor Carl Icahn, after many of Verizonâs competitors complained.
Verizon Communications is fleeing the crufty wireline communications world as fast as it can and has turned once again to Frontier to buy its fiber and telephony assets in Texas, Florida and California in a deal valued at $10.54 billion.he transaction includes Verizonâs FiOS internet and video customers, switched and special access lines, as well as its high-speed Internet service and long-distance voice accounts in these three states. Frontier will continue to provide video services in these states after the completion of the transaction.