June 5, 2014. A vehicle's brake booster uses an engine's vacuum to strengthen the force of a shopper's foot application to the car's master cylinder, and it significantly reduces the effort needed to stop the car. The device is important for buyers who drive vehicles that feature power brakes.
Unified Parkinson Disease Rating Scale. The UPDRS scale refers to Unified Parkinson Disease Rating Scale, and it is a rating tool used to gauge the course of Parkinson's disease in patients. The UPDRS scale has been modified over the years by several medical organizations, and continues to be one of the bases of treatment and research in PD clinics.
The three scales overlap and that's where the Rockwell measuring system can be quite misleading. The A scale overlaps the B scale and the B overlaps the C. So a high RA (read: Rockwell A value) can mean the same hardness as a low RB and a high RB can mean the same as a low RC. Some people who don't like this tend to prefer the Brinell Hardness scale which is significantly more simple to use.