The Cherenkov effect A charged particle traveling in a dielectric medium with n>1 radiates Cherenkov radiation if its velocity is larger than the phase velocity of light v>c/n or Î² > 1/n (threshold) The emission is due to an asymmetric polarization of the medium in front and at the rear of the particle, giving rise to a varying electric dipole momentum.
cyclo-. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule.
Cyclosporine is a drug that diminishes the body's immune response. It is prescribed for organ transplant recipients to prevent organ rejection and for some people with autoimmune conditions, such as rheumatoid arthritis, to alleviate symptoms. It is important to monitor levels of the drug for several reasons: