Purely hydrodynamic numerical experiments into the evolution of astrophysical discs typically include some sort of viscosity in order to cause accretion. In this paper, we demonstrate an alternative method of implementing viscous forces, with extremely good angular momentum conservation properties. The method is based on altering the cell fluxes, rather than incorporating a viscous force. We te...

Is it possible to achieve non-repudiation during electronic contractsigning? How can this be achieved in an e-mail based environment? These are the questions we will try to answer. The process of getting these answers will involve a short introduction to some of the available contract-signing standards and an analysis of how well the given standard would work in a e-mail environment. Additional...

What is the capacity to care and why does it matter? How is it acquired? What are its origins in the early development of self and morality? Are women better at caring than men and, if so, is this likely to change with contemporary changes in parenting and gender relations? What would constitute a good enough family, as opposed to good enough mothering? How does the capacity to care inform the ...

Throughout the software products industry, companies everywhere strive for a common goal: to develop and deliver a software product that reaches a dominant position in the marketplace. To achieve this goal, the software team must deliver the right product to the market -one that meets the individual user's needs, has the right features, and delivers the right benefits, including economic advant...