Visual search can proceed efficiently or inefficiently. Doubly ionised acetylene HCCH reacts inefficiently with argon to yield HCCAr. He says that "a coercive monopolist tends to perform his service badly and inefficiently". Dollar/Collier showed that current allocations of aid are allocated inefficiently. It is often burned inefficiently on an open fire. This can be carried on indefinitely, although inefficiently, as the latter terms become increasingly complicated. The aircraft is not in coordinated flight and therefore is flying inefficiently. A problem with this approach is that more complicated expressions such as are implemented inefficiently. Some Western historians of the Vietnam War assert that US troops were often used inefficiently. These evaporators could work inefficiently because of a loss of circulation. The effect of a duplex mismatch is a link that operates inefficiently. The study provided evidence that patients with schizophrenia process temporal information inefficiently.