Flavour changing strong interaction effects on top quark physics at the LHC

We perform a model independent analysis of the flavour changing strong interaction vertices relevant to the LHC. In particular, the contribution of dimension six operators to single top production in various production processes is discussed, together with possible hints for identifying signals and setting bounds on physics beyond the standard model.Comment: Authors corrections (references added

A Flexible Implementation of a Matrix Laurent Series-Based 16-Point Fast Fourier and Hartley Transforms

This paper describes a flexible architecture for implementing a new fast computation of the discrete Fourier and Hartley transforms, which is based on a matrix Laurent series. The device calculates the transforms based on a single bit selection operator. The hardware structure and synthesis are presented, which handled a 16-point fast transform in 65 nsec, with a Xilinx SPARTAN 3E device.Comment: 4 pages, 4 figures. IEEE VI Southern Programmable Logic Conference 201

Computational system for activity calculation of radiopharmaceuticals

The preparation of radiopharmaceuticals for distribution to several hospitals is practised widely and the transport is usually by road and plain, this is specially practised in big countries like Brazil where thedistance from one state to other is bigger than one country compared to others in continents like Europe. The purpose of this paper is to describe a computational system developed to evaluate the dose of radiopharmaceuticals during the production until the final receptor (hospital)