Special psychiatric services for the elderly now exist, some very well developed, in about half of all health districts, and over one tenth of all consultants in general psychiatry specialise in work with the elderly.' This development has taken place largely over the past decade, reflecting both progress in psychiatry and growing concern about how to cope with The Rising Tide2 of mental disord...

More fossil specimens and an eagerly awaited age for Homo naledi raise new questions and open fresh opportunities for paleoanthropologists.

Relationships between the environment and population dynamics in ecology have a long history of polarized debates usually involving two alternative and opposite explanations that exclude each other. One of the best known examples is found in the early question of what regulates populations and the role of extrinsic vs. intrinsic factors, opposing the importance of the environment (or density-in...

Hydrodynamics of multiple rising bubbles as a fundamental two-phase phenomenon is studied numerically by lattice Boltzmann method and using Lee two-phase model. Lee model based on Cahn-Hilliard diffuse interface approach uses potential form of intermolecular forces and isotropic finite difference discretization. This approach is able to avoid parasitic currents and leads to a stable procedure t...