Methods, systems and computer instructions on computer readable media are disclosed for optimizing a query, including a first join path, a second join path, and an optimizer, to efficiently provide high quality information from large, multiple databases. The IQ quadrature demodulator includes an input terminal that converts an input RF signal into a RF current signal and is shared by an I mixer and a Q mixer, and the I mixer and the Q mixer receive the input RF current signal from the input terminal and output an I signal and a Q signal, respectively. The containers are also formed to minimize internal surface area so that effective re-dispersion of the active agents can be achieved while reducing adsorption to the walls of the containers. 1 to 5 weight percent of an ethylene copolymer of the formula EXY; wherein Y includes a glycidyl group. Exemplary embodiments of the methods comprise introducing a cationic polyorganosiloxane into the subterranean formation, wherein the cationic polyorganosiloxane comprises at least two quaternary ammonium groups.