The Sudbury Neutrino Observatory

The Sudbury Neutrino Observatory is a second generation water Cherenkov detector designed to determine whether the currently observed solar neutrino deficit is a result of neutrino oscillations. The detector is unique in its use of D2O as a detection medium, permitting it to make a solar model-independent test of the neutrino oscillation hypothesis by comparison of the charged- and neutral-current interaction rates. In this paper the physical properties, construction, and preliminary operation of the Sudbury Neutrino Observatory are described. Data and predicted operating parameters are provided whenever possible.Comment: 58 pages, 12 figures, submitted to Nucl. Inst. Meth. Uses elsart and epsf style files. For additional information about SNO see http://www.sno.phy.queensu.ca . This version has some new reference

Δ\DeltaI = 4 Bifurcation in Identical Superdeformed Bands

What does it mean to find one's place in a book ? Some authors assert that the web actualises the dream of Emmanuel Kant that reason is an independent entity , where each one of us plays a part in its construction. Is this the core of the enlightment ? In his minor works and his correspondence Kant wrote about the book and about reading. We should distinguish between Kant's own concept and the uses to which it is put today. In his work he speaks of the courage necessary to think, of the publisher's responsibility, of the theoretical and practical components of thought. From the perspective of Kant's writings, we can see that our view of hypertext is too preoccupied with the instrument of communication itself to the detriment of understanding what might be communicated

Multi-particle excitations in the superdeformed 149^{149}Gd nucleus

This article presents earlier results of our research works in the area of modeling Business Intelligence Systems. The basic idea of this research area is presented first. We then show the necessity of including certain users' parameters in Information systems that are used in Business Intelligence systems in order to integrate a better response from such systems. We identified two main types of attributes that can be missing from a base and we showed why they needed to be included. A user model that is based on a cognitive user evolution is presented. This model when used together with a good definition of the information needs of the user (decision maker) will accelerate his decision making process