Recently, new theoretical ideas have allowed the construction of lattice actions which are explicitly invariant under one or more supersymmetries. These theories are local and free of doublers and in the case of Yang-Mills theories also possess exact gauge invariance. In this talk these ideas are reviewed with particular emphasis being placed on N = 4 super Yang-Mills theory. c Copyright owned ...

We present a powerful software tool called ViSiDiA allowing to visualize and to simulate distributed algorithms. Our tool is intended to researchers and to teachers/students as well. We give a general view of ViSiDiA by describing its main features without going into technical or implementation details. More precisely, we show how ViSiDiA can be used in order to implement, test and experiment d...

For the man on the street, the businesswoman in her o ce, the shopper or investor at home, identity on the Internet is a straightforward idea with a complex solution. Using Amazon, there is one sign-on and password; using United Airlines, another; connecting to L.L. Bean, yet another, and with Fidelity Investments, a fourth. Within the enterprise, each service | on-line corporate travel, 401(k)...

Dr. Richard Ezgur, founder of The Chicago Homeopathy Study Group, specializes in the practice of pure/classical homeopathy as practiced by Hahnemann. Whether used in conjunction with conventional medicine, or as a natural alternative, homeopathy is often the treatment of choice to recover one’s health most safely, efficiently, completely, and permanently. Dr. Ezgur has seen excellent results, a...

Images get corrupted by many things, from noisy transmissions (e.g., from Mars rover to NASA) to dirty scanner glass and camera lenses. In such situations, we want to restore the image to its original or proper state as best we can. One method for doing this is called “Iterated Conditional Modes.” We won’t go in to all of the rich theory behind it, but the name does tell us two things. It’s ite...

Climate variability results from a very diverse set of physical phenomena and occurs on a very wide range of time scales. It is difficult to envision a single model, complex as it might be, which could explain, simulate or predict all sources of climate variability. It is therefore simple models, that concentrate on a single or a few phenomena and on some limited range of time scales, that have...