Adaptive modulationdemodulation method in a radio communication system is provided. IL6RIL6 chimera is used to promote the formation of oligodendrocytes from embryonic stem cells for treatment of neurodegenerative diseases or posttraumatic nerve damage. The second inflow section allows the developer to flow from the first developer containing chamber into the second developer containing chamber. Modulation of the patient support surface is accomplished through two conceptually distinct mechanisms\u2014 articulation of the base platform and movement of the vertices andor segments of the adjustable patient support framework. The controller is installed inside the laptop and configured for controlling the motor to drive the gate to open the air vent of the shell when the laptop is powered on, and to close the air vent of the shell when the laptop is being powered off. A switching device is provided between the rectifier and the inverter.