There are two types of body waves: compressional (P) waves and shear (S) waves. Primary waves (P-waves) travel the fastest, so they arrive at the recording station (seismograph) first. Secondary or shear waves (S-waves) travel slower than P-waves so they arrive second.
Modified frequency modulation (MFM) is an encoding scheme used by PC floppy disk drives and older hard drives.
Medication therapy management, also referred to as MTM, is a term used to describe a broad range of health care services provided by pharmacists, the medication experts on the health care team. As defined in a consensus definition adopted by the pharmacy profession in 2004, medication therapy management is a service or group of services that optimize therapeutic outcomes for individual patients.