Vladislav I. Guerassev, the economic affairs officer of the Soviet delegation to the United Nations, gave the annual Matthew Vassar Lecture, speaking in the Villard Room on “Implications of Perestroika for U.S./Soviet Relations.”  Declaring that “the Soviet Union could see no advantage in pursuing nuclear superiority,” Guerassev said it was time to “identify areas of possible superpower cooperation,” so that the two great nations could forge a “global partnership.”     The Miscellany News