Devices, implements and methods are provided for performing trapezioplasty of the osteoarthritic trapezium. The test that has at least two separate regions, of which the first serves for receiving the sample and the second serves for receiving the gases liberated from the sample. In an embodiment, an LDPC encoder is employed at the receiver to re-encode the parity bits. In addition, manufacturing methods for these microporous polypropylene films are provided. The proximity token is operable to validate the communication only when the proximity token is located within a predetermined validation distance from the security token or the application service. The method includes: receiving, by a first server, a first cost request message from a client, where the first cost request message includes a first source node list, a first candidate node list, and a cost type; and calculating a cost between each source node in the first source node list and each candidate node in the first candidate node list according to the cost type.