Pain in the upper abdomen can often be attributed to temporary problems such as indigestion or gas. Persistent or severe upper abdominal pain may be related to other digestive tract conditions or to conditions of the body wall, blood vessels, kidneys, heart, or lungs.
Impersonation is the ability of a thread to execute in a security context that is different from the context of the process that owns the thread. Impersonation is designed to meet the security requirements of client/server applications.
Impersonation is when someone pretends to be another person. If you pretend to be your twin brother all day at school, that's impersonation. There are a few different forms of impersonation â some of them are harmless, like comedians who use impersonation to mimic the voices and mannerisms of famous people, or actors who play historical figures in movies.