Properties sometimes attributed to the “particle” aspect of a neutron, e.g., mass and magnetic moment, cannot straightforwardly be regarded in the Bohm interpretation of quantum mechanics as localized at the hypothetical position of the particle. This is shown by examining a series of effects in neutron interferometry. A related thought-experiment also provides a variation of a recent demonstration that which-way detectors can appear to behave anomolously in the Bohm theory.

Diogenes Laertius relates the tale that Aristotle, upon being reproached for giving alms to a debased fellow, replied, ‘It was not his character, but the man, that I pitied.’ Some such reply is equally apt in apology for a paper paying homage to an idea long discredited in the philosophical world, Aristotle's theory of Place. I have been moved, not indeed by the apparent character of Aristotle's theory, for that is easily reproached, but by what has proved for the philosophical (...) tradition of infinite worth, what we may call the theory's ‘latent virtue’. There is a danger, of course, as hard-headed philologists and commentators are always reminding us, that in attending to this latent virtue we may be paying sentimental homage to the dead. Thus it will be important that we first carefully and coldly examine the overt character of the Aristotelian doctrine before attempting to justify any philosophical compassion felt in its presence. More than likely in such a disinterested inquiry it will be found that our ‘debased fellow’ is a good deal more of a man than the modern reformers have allowed. (shrink)

Light adaptation is modulated almost exclusively by changes in intracellular Ca2+ concentration, and other Ca2+-independent mechanisms are likely to play only a minor role. Changes in Ca2+i may be not only necessary for light adaptation to take place but sufficient to cause it.

Classical treatise on the fundamentals of Nyaya philosophy with commentaries; critical edition.

This note is viewing survival data of a natural cohort as being generated by a possibly nonlinear, nonhomogeneous death process. It proves that the usual conditional distributions of the number of survivors at a certain age are binomial if and only if the death process is linear. Thus the customary statistical methods for the analysis of life table data are, strictly speaking, invalid whenever the underlying death process is nonlinear. For example, if a contagious disease is the cause of some (...) or all of the deaths, the deaths will not be independent and the death process, not linear. One should then base the statistical analysis on a model for the spread of the disease rather than the routine binomial model. (shrink)

Festschrift volume in honour of Mohd. Sabir Hussain, b. 1935.