A new approach stemming from the adiabatic-connection (AC) formalism is proposed to derive parameter-free double-hybrid (DH) exchange-correlation functionals. It is based on a quadratic form that models the integrand of the coupling parameter, whose components are chosen to satisfy several well-known limiting conditions. Its integration leads to DHs containing a single parameter controlling the...

This preliminary report presents recent experience with the Senning operation for transposition of the great arteries. Reasons are given why the traditional Mustard procedure was abandoned in favour of the Senning operation. Technical details are presented and the advantages and disadvantages of the procedure are discussed.

The connection between architecture and science and sound based on mathematical relations has continued to develop[ since the rise of the Western classical civilization that originated in Ancient Greece. The mysterious Pythagorean cosmology pursued as secret esoteric knowledge was related to the search of rhythm, proportionality and harmony. Even somewhat earlier, Greek mysteries were based on ...

The CM-2 is an example of a connection machine. The strengths and problems of this implementation are considered. Then important issues in the architecture and programming environment of connection machines in general are considered. These are contrasted with the same issues in MD multiprocessors and multicomputers.

The central pattern generators constructed from oscillating motor neurons are common biological phenomena. Central pattern generators are able to generate large number of different patterns, ranging from small periodic patterns to chaotic ones [Matsuoka, 1987]. Earlier the simulated oscillating neural systems have been used in rhythm perception research [Ohya, 1994] and musical pattern generati...

Computations in geographic space are necessarily based on discrete versions of space, but much of the existing work on the foundations of GIS assumes a continuous infinitely divisible space. This is true both of quantitative approaches, using R, and qualitative approaches using systems such as the Region-Connection Calculus (RCC). This paper shows how the RCC can be modified so as to permit dis...