The period in which the radioactivity or number of atoms of a radioactive substance decreases by half; similarly applied to any substance, such as a drug in serum, whose quantity decreases exponentially with time.antibody half-life a measure of the mean survival time of antibody molecules following their formation, usually expressed as the time required to eliminate 50 per cent of a known quantity of immunoglobulin from the animal body.Want to meet attractive singles in Naberezhnye Chelny?
With more than two square miles dedicated to production, the Kamaz plant is the largest vehicle factory in the world. oldest Russian's developers of PC-based CAx software including Sprut CAM was founded at 1987 in Naberezhnye Chelny.
Naberezhnye Chelny is a major railway, motor transport, and aviation hub, known on the Kama river port.
The city has a structural unit of the Kuibyshev Railway JSC "Russian Railways" - Kama KBS railway department, which carries out operational management of transport in the Kama region (railroad Agryz Akbash).
Immediately Naberezhnye Chelny city is served by two railway stations.
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