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.
MHM Services, Inc. (MHM), is a leading national provider of healthcare services to. state and local government agencies. From mental health and long-term care to medical, dental and forensic services, our employees are dedicated to providing the highest quality of care for every population they serve. Today, we serve over 330,000 individuals in hundreds of facilities across the nation.