BAK - Disamat 801 Hot Air Welding Machine. BAK - Disamat 801 The welding machine for â¦more
The different grades of the Risser sign give a measure of bone maturity and thus of the skeletal growth to be expected. In Europe, a scale ranging from Risser 0 to Risser 5 defines the grades from beginning ossification to complete fusion of the apophysis to the iliac bone. In the USA, 4 grades are defined.
âRITâ is an abbreviation for âRausch Unit.â The difficulty and complexity of each MAP assessment question is measured using the RIT scale. A studentâs RIT score indicates the level at which the student was answering questions correctly 50% of the time.