As an introduction to this special issue, paper presents a discussion of different theoretical and methodological challenges in analyzing the ways which global policy flows are shaping education policies practices within across federal systems. We argue that dynamics between systems complex, non-linear, multi-directional ever changing. start by discussing notion mobilities kinds approaches we s...

This commentary reviews recent research in terms of tourist’s mobilities practices walking, cycling and driving. It concludes by reflecting on the contemporary lock down travel global pandemic its consequences for waiting, stillness immobility – particularly flying.

Electrophoretic mobility is the most important parameter governing the separation of solutes in capillary zone electrophoresis (CZE). Classical theoretical models for the prediction of absolute mobilities consider only the effect of hydrodynamic friction. Application of these models to literature mobility data demonstrates that they are not appropriate for small organic solutes. Accurate predic...

There has been recently an important interest in deriving rigorously the Cahn-Hilliard equation from nonlocal equation, also called aggregation equation. So far, only non-degenerate mobilities were treated. Since we are motivated by models for biomechanics of living tissues, it is useful to include degenerate mobilities. In this framework, present a new method show convergence local The include...