Different sleep stages are associated with distinct dynamical patterns in EEG signals. In this article, we explored the relationship between the sleep architecture and fractal dimension (FD) of sleep EEG. In particular, we applied the FD analysis to the sleep EEG of patients with obstructive...

Adsorption of 4He and para-H2 is predicted to exhibit exotic properties on weak-binding surfaces. For 4He, alternative scenarios include nonwetting, prewetting and a Bose gas monolayer. For H2, a monolayer superfluid phase can be created by a suitable choice of the substrate. Intriguing...