Compositions based on Heliopsis longipes root used orally in treating xerostomia, for dry mouth, increasing salivation, alleviating dry mouth, and in maintaining or improving oral hygiene; as local contact anesthetics; as a cough suppressant, and as an oral sensate-producing desirable sensations in the oropharynx. Compositions comprising such compounds are also provided. The attributes may be shared by multiple items across more than one category. The method is performed periodically to correct for changes in wheel size over time due to wear so that the wheel rotation information can be used to determine train position and speed in the event of a positioning system failure. The jamming signal comprises noise transmitted within the bandwidth of the channel being used by the access point and the ACD to communicate within the cell.