Aeneas Mackay Fisher

Mackay Antisymmetry Space Groups

By using the antisymmetry characteristic method implemented in computer programs written in Mathematica 4, from 230 space symmetry groups are derived 1191 Mackay groups of the type M1, 5005 groups of the type M2, 19467 groups of the type M3, 72587 groups of the type M4, 191728 groups of the type M5, and 598752 groups of the type M6. Mackay groups are the minimal representation of Zamorzaev’s mu...

Trudy Mackay

smoking, or by a combination of the three, and to pack them into barrels for transport. The cod and its relatives hake and haddock, were a different matter and more easily preserved than herring. The pursuit of cod took fishermen much further away. A huge industry developed, centred on Bergen, where ships exchanged dried fish for grain. Archaeological excavations in the Norwegian Lofoten Island...

DONALD M . MACKAy AND WARREN

The maximum rate at which a synaptic link could theoretically transmit information depends on the type of coding used. In a binary modulation system it depends chiefly on the relaxation time, and the limiting capacity equals the maximum attainable impulse rate. In a system using pulse-interval modulation, temporal precision may be a more important limiting factor. It is shown that in a number o...

David J.C. MacKay and Mark N. Gibbs

Rapid pneumatic and Mackay-Marg applanation tonometry

Glaucoma is usually considered to be adequately controlled when Goldmann applanation readings are below 22 mmHg. It is, however, now known that the intraocular pressure increases to a varying degree when the patient changes his posture from sitting to a recumbent position (Galin, McIvor, and Magruder, I963; Roberts and Rogers, I964; Hetland-Eriksen, Ig66a; Inglima, I966; Tarkkanen and Leikola, ...