Revenue passenger miles. Revenue passenger miles (or RPM) measures demand for air transport. Itâs calculated as the number of revenue passengers multiplied by the total distance traveled. Itâs also called airline âtraffic.â. An increase in RPM is positive for an airline company. It means that more passengers are using their service.
Definition. An armpit lump is a swelling or bump under the arm. A lump in the armpit can have many causes. These include swollen lymph nodes, infections, or cysts.
Infectious mononucleosis is one of these viral infections that may cause a lump under the armpit. The causal virus is the Epstein-Barr virus. This normally affects 15 to 17 year olds. The symptoms which are usual for this infection are sore throat, fever, as well as lymph glands swollen.