The Hybrid Monte Carlo (HMC) algorithm currently is the favorite scheme to simulate quantum chromodynamics including dynamical fermions. In this talk— which is intended for a non-expert audience—I want to bring together methodical and practical aspects of the HMC for full QCD simulations. I will comment on its merits and shortcomings, touch recent improvements and try to forecast its efficiency...

This paper addresses the challenge of transparent data sharing within computing Grids built as cluster federations. On such platforms, the availability of storage resources may change in a dynamic way, often due to hardware failures. We focus on the problem of handling the consistency of replicated data in the presence of failures. We propose a software architecture which decouples consistency ...

This paper proposes a confluence between soft OR and soft computing methods, by means of an application of fuzzy logic ideas to robustness analysis. Both methods try to add flexibility to proposed solutions of real world problems, although insofar as their application contexts are concerned, they have been quite apart. So it is only natural to bring them together in what could be called a "fuzz...

In this survey we have attempted to bring together most of the results and papers that deal with toughness related to cycle structure. We begin with a brief introduction and a section on terminology and notation, and then try to organize the work into a few self explanatory categories. These categories are circumference, the disproof of the 2-tough conjecture, factors, special graph classes, co...

Security based on cryptographic techniques is commonly used in many applications from many fields. Using security based on cryptographic techniques in remote control systems is certainly a subject of great interest. This paper will try to bring some points of view on the security objectives present in remote control systems and on the cryptographic primitives used to ensure them. Two solutions ...