The condition is equivalent to the existence of quasicentral approximate unit with respect to the Macaev norm relative to the left regular representation of the group and has been studied by the author in connection with perturbation questions for Hilbert space operators.

There are ominous implications for babylift children in the story of Leigh Marsh, an adopted Korean child who lost eight years in the Connecticut public school system.

The theory, though common, was widely disputed.

As for machine-made mistakes — the misdispense rate — it is lower with Citibank's system than any automated dispensing device that we know of, Judd said.