Doctors will order a chloride sweat test for kids with positive newborn screen for cystic fibrosis, a family history of cystic fibrosis, or symptoms of the disorder. Symptoms and signs include failure to grow, repeated lung infections, and digestive problems.
In nuclear physics, beta decay (Î²-decay) is a type of radioactive decay in which a beta ray, and a respective neutrino are emitted from an atomic nucleus.
1. the decomposition of dead matter. 2. the process of decline, as in aging. beta decay disintegration of the nucleus of an unstable radionuclide in which the mass number is unchanged, but atomic number is changed by 1, as a result of emission of a negatively or positively charged (beta) particle. tooth decay dental caries.