The signal transduction pathway is the mechanism by which the energy of a photon signals a mechanism in the cell that leads to its electrical polarization. 1  This polarization ultimately leads to either the transmittance or inhibition of a neural signal that will be fed to the brain via the optic nerve.
The Inland Empire (I.E.) is a metropolitan area and region of Southern California. It is situated directly east of the Los Angeles metropolitan area.
While the Inland Empire has television channels licensed to their cities, only PBS member station KVCR-TV broadcasts directly to the Inland Empire. The other channels broadcast to the greater Southern California market. The Inland Empire's source for most of its television is Los Angeles.