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.
General medical examination. The general medical examination is a common form of preventive medicine involving visits to a general practitioner by well feeling adults on a regular basis. This is generally yearly or less frequently. It is known under various non-specific names, such as the periodic health evaluation, annual physical, comprehensive medical exam, general health check, preventive health examination, medical check-up or simply medical. In the United Kingdom, the examination remains unpopular with the general pop