Data transmission. Data transmission, digital transmission, or digital communications is the physical transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, and storage media.ata transmission, digital transmission, or digital communications is the physical transfer of data over a point-to-point or point-to-multipoint communication channel.
A coal miner completes a screening survey for coalworker's pneumoconiosis. Screening, in medicine, is a strategy used in a population to identify the possible presence of an as-yet-undiagnosed disease in individuals without signs or symptoms. This can include individuals with pre-symptomatic or unrecognized symptomatic disease.
Medical procedure. A medical procedure is a course of action intended to achieve a result in the care of persons with health problems. A medical procedure with the intention of determining, measuring or diagnosing a patient condition or parameter is also called a medical test. Other common kinds of procedures are therapeutic, including the large group of surgical procedures. Rehabilitation procedures are included in this group.