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The halting recovery not only points to the need for greater macroeconomic policy convergence among the major industrial economies , but also reveals the difficulties involved in the choice of monetary and financial policies during speculative booms in asset prices . Database superusers Database super-users ( i.e ., users who have pg_user.usesuper set ) silently bypass all of the access controls described below with two exceptions : manual system catalog updates are not permitted if the user does not have pg_user.usecatupd set , and destruction of system catalogs ( or modification of their schemas ) is never allowed . This will call for policy coordination and coherence among countries , but most importantly among the multilateral international institutions dealing specifically with these questions . Recently , the frontal eye fields ( FEF ) have been implicated in pursuit gain control ( Tanaka and Lisberger , 2001 ) . Secondly , additional needs should be incorporated in that renewed agenda , and incorporated with sufficient flexibility to take account of the diversity of levels of development of developing countries , some of which are already quite advanced and some of which are still among the least developed , totally dependent on commodities . Directing attention to the left hemifield led to increased stimulus-evoked activity in extrastriate visual areas of the right hemisphere , whereas directed attention to the right hemifield led to increased activity in extrastriate visual areas of the left hemisphere ( Heinze et al ., 1994 ; Vandenberghe et al ., 1997 ) . The distinctness can also occur because the element is more important than others ( the face of a friend among strangers ) . ) This ambiguity is removed the instant the timing and position of the bounce are established . Superposition problems arise if perceptual objects are present whose corresponding assemblies partly share the same neurons ( upper box ) .