The present invention relates to liquid-crystal media comprising polymerizable compounds, in particular for use in LIQUID CRYSTALLINE displays of the PS or PSA type, and to PS displays containing LIQUID CRYSTALLINE media of this type. The repeater comprises, for each channel of the time division duplexed signal, a pair of access points. The dispersion characteristic of the line has a nonlinear portion, caused by electromagnetic coupling between the line and the resonators, and the phase velocities of the electrical signals which propagate through the line change according to their frequencies. A skin cosmetic characterized in that it contains at least one substance selected from seed extracts and seed hull extracts of a plant belonging to the genus Carya of the family Juglandaceae in an amount of from 0.