The balance between ice and water controls the habitability of an important fraction of the globe and influences the majority of the world’s population. The freezing of water to form ice is one of the most common phase transformations in the natural environment. However, a complete understanding of its microscopics and their influence on macroscopic phenomena still eludes us. As this millennium...

Introduction: The cellular structure of living tissues is much finer than the achievable resolution of MRI images. Water molecules diffusing through the tissue explore its microstructure, but the observed signal, the sum of all spin contributions, is effectively averaged over macroscopic voxels, so that most of the subvoxel information is lost. The relevant question is which of the structural p...

The time evolution of structure factors (SF) in the disordering process of an initially phase-separated lattice depends crucially on the microscopic disordering mechanism, such as Kawasaki dynamics (KD) or vacancy-mediated disordering (VMD). Monte Carlo simulations show unexpected "dips" in the SFs. A phenomenological model is introduced to explain the dips in the odd SFs, and an analytical sol...

There are usually no structural changes detectable on an individual MRI scan of a patient with idiopathic/genetic generalized epilepsy (IGE/GGE) or simple febrile seizures. This observation is also used as a diagnostic criterion for this type of epilepsy, and more broadly also for other types of genetic epilepsies. However, slight morphologic changes can be detected as group effects in comparis...