This information is used to determine the density of the air entering the combustion chamber (in conjunction with the IAT (Intake Air temperature) sensor), which is used when calculating the proper air/fuel mixture for the engine, especially at WOT since the system is not in closed-loop at this time.
The TTR gene provides instructions for producing a protein called transthyretin. This protein transports vitamin A (retinol) and a hormone called thyroxine throughout the body. To transport thyroxine, four transthyretin proteins must be attached (bound) to each other to form a four-protein unit (tetramer).
Purpose. 1  Cervical transforaminal epidural steroid injections (TFESI) are indicated in cervical radicular pain resistant to conservation therapy, by which steroids can be delivered into anterior epidural space surrounding target spinal nerve roots to help alleviate pain in the upper limb or neck.