The problem of consistent formulation of the correspondence principle in quantum gravity is considered. The usual approach based on the use of the two-particle scattering amplitudes is shown to be in disagreement with the classical result of General Relativity given by the Schwarzschild solution. It is shown also that this approach fails to describe whatever non-Newtonian interactions of macros...

This chapter provides an overview of how a powerful acoustical principle – sympathetic resonance – has been applied to our organ of hearing. It focuses on the principle’s virtues, drawbacks, and varying fortunes. Why did Helmholtz’s resonance theory of hearing in the 1850s fall from universal acceptance to near total disregard? What were the factors favouring traveling wave theories, most notab...

Multimedia learning principle occurs when we create mental representations from combining text and relevant graphics into lessons. This article discusses the learning advantages that result from adding multimedia learning principle into instructions; and how to select graphics that support learning. There is a balance that instructional designers have to keep in mind when using multimedia princ...

We propose a reflection principle for holomorphic objects in Cn . Our construction generalizes the classical principle of H.Lewy, S.Pinchuk and S.Webster. Key-words: reflection principle, generic manifold, maximum modulus set, holomorphic extension. A.M.S. Classification: 32D15, 32D99, 32F25, 32H99.

The problem of characterising the accuracy of, and disturbance caused by a joint measurement of position and momentum is investigated. In a previous paper the problem was discussed in the context of the unbiased measurements considered by Arthurs and Kelly. It is now shown, that suitably modified versions of these results hold for a much larger class of simultaneous measurements. The approach i...

of a specific reaction, which in the normal person takes place as a result of the presence in the stomach of a specific factor in the food (extrinsic) and a factor in the gastric juice (intrinsic) (Castle, 1929; Castle et al., 1931). In pernicious ansemia, disturbances of the gastro-intestinal tract and of the central nervous system are associated. Neural (Smithburn and Zerfas, 1931; Goldhamer ...