A substrate for a transflective liquid crystal display that is capable of display in both reflective and transmissive modes and a display having the same. The base station includes a first interface to a packet data network and a second interface to a public switched telephone network, the base station being arranged to selectively establish a packet data call from the first interface and a public switched telephone call from the second interface. The device can receive flight data from an off-board provider and automatically transfer it, as well as any previously prepared commands or data, to a flight management system andor cockpit display systems. Solvents that are immisicble with water are separated from it by selectively wetting the aerogel. The invention further relates to a method of inhibiting the interaction of a cell bearing mammalian CCR2 with a ligand thereof, and to use of the antibodies and fragments in therapeutic, prophylactic and diagnostic methods.