VC is done in the radiology department of a hospital or medical center. No sedatives are needed and no colonoscope is used. The exam is done as follows: 1  You lie on your left side on a narrow table that is connected to an MRI or CT machine.  Your knees are drawn up toward your chest.
Starting with basics, 'pg' is shortform for post graduation and 'ug' is shortform for under graduation. 'ug' involves your bachelor's degree like B.tech, b.com, b.sc,etc 'pg' involves your master's degree like m.tech, m.com, m.sc,etc. 'ug' is more of giving overall flavour and knowledge of your domain while in 'pg' you specialise in particular course.
In statistical theory, a U-statistic is a class of statistics that is especially important in estimation theory; the letter U stands for unbiased. In elementary statistics, U-statistics arise naturally in producing minimum-variance unbiased estimators.