Abstract: A monolithic refractory composition, which can be rapidly dried after being mixed with water and applied to a desired portion by casting or spraying to form a furnace wall, and which comprises refractory aggregates, a refractory powder, an aluminum alloy powder and a dispersant, wherein the aluminum alloy powder is contained in an amount of from 0.04 to 5 parts by weight per 100 parts by weight of the total amount of the refractory aggregates and the refractory powder.

Abstract: A driving method of a liquid crystal display element having plural numbers of scanning electrodes and data electrodes where a J.times.L number (J and L are each integers.gtoreq.2) of scanning electrodes are divided into J subgroups each having L scanning electrodes so that the subgroups are selected and driven as a batch. The subgroups are selected while the following conditions are satisfied: (1) in L=k.multidot.N.multidot.T/.tau., a value satisfying k=10-250 is determined, where L is the number of row electrodes selected, N is the total number of row electrodes, T is a selection time of a single scanning electrode and .tau.

Abstract: 7-Fluoroprostaglandins represented by the following formula (I): ##STR1## In the formula (I), R.sup.1 is a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R.sup.2, R.sup.3 and R.sup.4 are hydrogen atoms or the same or different protective groups, respectively, and R.sup.5 is a straight chained, branched or cyclic alkyl group having from 3 to 7 carbon atoms.