Task: Text Categorization
Input (English): When they are threaded by magnetic fields, they can exhibit waves that propagate in the direction of the field known as Alfven waves, while their characteristics are frequently measured with a Langmuir probe. The kinematic behavior of these entities, which exhibit a collisionless power transfer known as Landau damping, is governed by the Vlasov equation, and a fluid model of processes in them is known as magnetohydrodynamics. They do not allow the propagation of waves below their namesake frequency, and the characteristic shielding parameter in them is known as the Debye length. Often contained in tokamaks, FTP, identify this state of matter consisting of an ionized gas.
Output (English): Science