Traps, and more particularly collapsible traps used to capture crabs or other live animals. The motor includes a stator including a high-temperature superconductor material at a temperature. A lid covers the recovery tank and has an inlet opening for directing dirt and liquid into the recovery tank and an outlet opening located at the front end of the recovery tank. Preferably, the pivot arm has a length of about 2 to about 4. A multilayer substrate and a method for producing it in accordance with the present invention can shield the EMI generated by a high-speed switching element. The microprotrusion member includes a plurality of microprotrusions which penetrate the stratum corneum to improve transport of an agent across the stratum corneum.