The present invention generally relates to amphiphilic grafts and co-networks made from at least one hydrophilic polymer and at least one hydrophobic polymer, and to processes for preparing such amphiphilic grafts and co-networks. The first transistor has a first gate electrode above the semiconductor layer via an insulating film and a first source or drain of a first conductivity type in the semiconductor layer below both sides of the gate electrode. The anode of the first zener diode Z1 is branched into two lines at a branch node N1, and one of the two lines is connected to a ground through a resistor R1. The light receiving portion receives light from a light sending portion. Wherein the second end releasably engages the locking thread in the channel and adjustably configures the core member to surround the conductor as the second end is moved through the channel. The particles provide smoothness to the preparation and can be used to provide an interesting visual appearance to the stick.