Packing confined hard spheres denser with adaptive prism phases

[EN] We show that hard spheres confined between two parallel hard plates pack denser with periodic adaptive prismatic structures which are composed of alternating prisms of spheres. The internal structure of the prisms adapts to the slit height which results in close packings for a range of plate separations, just above the distance where three intersecting square layers fit exactly between the plates. The adaptive prism phases are also observed in real-space experiments on confined sterically stabilized colloids and in Monte Carlo simulations at finite pressure. © 2012 American Physical Society.We thank Elvira Bonet, Moises Garin, and Kevin Mutch for helpful discussions. This work was partially supported by the DFG within the SFB TR6 (Project D1), and by the Spanish CICyT Projects FIS2009-07812 and PROMETEO/2010/043. F. R.-M. acknowledges the support from the EU Marie Curie Project APPCOPTOR-275150 (FP7-PEOPLE-2010-IEF).Oguz, EC.; Merechal, M.; Ramiro Manzano, F.; Rodríguez, M.; Messina, R.; Meseguer Rico, FJ.; Loewen, H. (2012). Packing confined hard spheres denser with adaptive prism phases. Physical Review Letters. 109(21):218301-1-218301-5. https://doi.org/10.1103/PhysRevLett.109.218301S218301-1218301-51092

Paediatric Behcet's disease with sinus venous thrombosis: experience from three centres in Turkey

Objective. To report our experiences of the juvenile Behcet's disease (BD) patients with cerebral venous sinus thrombosis (CVST) and to review previous studies reporting the clinical characteristics and outcomes of juvenile BD with CVST