Cushing's syndrome, or hypercortisolism, is a relatively rare hormonal disorder caused by prolonged exposure of the body's tissues to high levels of the hormone cortisol. Symptoms include: upper body obesity, rounded face, increased fat around the neck, thinning arms and legs, fatigue, weakness, high blood pressure, and. mood disorders.
In brief: Uniform standered. Pt is prothrombin time, inr is international normalized ratio, both measure cloting tendency in disease and in health. In pt each time you need contol which varies place to place and some what unpredictble. So inr solves the problem by uniform standred all over the world.
Both the Sub Pre out, and the Surr Back Pre outs are the same - when there is a 5.1 signal (or dolby prologic, or other fake 5.1 modes) the signal processing in the receiver generates the signal for all the channels, and the Pre outs are balanced line out version of the same sound that would go to the speakers.