I will give a brief overview of modern statistical methods for estimating treatment effects that have recently become popular in social and biomedical sciences. These methods are based on the potential outcome framework developed by Donald Rubin. The specific methods discussed include regression...

Classical ensemble theory is compared to quantum mechanics. The remarkable feature is that classical ensemble theory, when suitably generalized, leads, for a system of one degree of freedom to two independent uncertainty relations. On the contrary classical trajectory theory which deals only...

In the inhomogeneous collisionless system the collective modes are constructed in the physical representation using the method of subdynamics. They correspond to the explicit solutions of the non-linear Vlasov equation and they appear as the generalization of the van Kampen-Case treatment. The...

The Friedrichs model of an unstable particle provides us with a non-trivial example of a dynamical system with a continuous spectrum. The non-unitary transformation operator which leads in our approach to a semi-group description of the time evolution of the system has been constructed in...

States that change management is a continuous process for organizations wishing to keep pace with their ever‐changing marketplace. The pace of change is faster today than ever before, with the prospect of staying that way for the next few years. Describes how change management is non‐linear...