Residency is a stage of graduate medical training. A resident or house officer is a physician (holding either a M.D. , D.O. , MBBS, MBChB, BMed or D.P.M. degree) who practices medicine usually in a hospital or clinic.The definition of residency varies worldwide by country and structure of the medical industry.esidency is a stage of graduate medical training. A resident or house officer is a physician (holding either a M.D. , D.O. , MBBS, MBChB, BMed or D.P.M. degree) who practices medicine usually in a hospital or clinic.
In astronomy, the term period usually refers to how long an object takes to complete one cycle of revolution. In particular the orbital period of a star or planet is the time it takes to return to the same place in the orbit. Quasi-periodic oscillation. Jump to: navigation, search.
Relative to the stars, the sidereal period is the time it takes for a planet to complete one orbit. The orbit of a planet around the Sun measured with respect to the âfixed starsâ is used to determine the sidereal period. The sidereal period of the Earth is 365.25636 mean solar days, which is slightly longer than the tropical year (measured between successive vernal equinoxes) of 365.24219. In most calendar systems, the length of the year is taken to be 365 days, which is close to the Earthâs sidereal period. Leap years are added to reduce the amount of calendar drift between the observed dates of events (e.g. solstices and equinoxes) and their expected calendar dates. Planetary data: Sidereal Periods