An antireflection film comprises: at least one layer containing fine pores; and an antistatic layer, wherein the antistatic layer and one of said at least one layer containing fine pores are the same or different; and wherein, when a surface of the antireflection film is brought into contact with water for 15 minutes, a wiped portion of the surface shows a chromaticity change, \u0394E, of 0. The method takes advantage of information retrieval techniques to select documents related to the portion of the temporal document in which the user has expressed interest. Hybrid adders may include carry select and carry ripple adder circuits. The invention includes pharmaceutical compositions comprising the compound of Formula I:. The IS-OFDM transmitted signal is at a data rate that is equal to the data rate of the input data stream via the use of PS converters.