This article studies the origin of broad band light emission in the ultraviolet to the red from silicon nanoparticles fabricated using a single low energy silver ion implantation.

This article presents a Monte Carlo simulation of an experiment that could potentially determine whether antihydrogen accelerates vertically up or down as a result of earth's gravity.

This article discusses cooperation-induced topological complexity and the emergence of intelligence.

This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.

This article reports new Herschel observations of extremely luminous optically selected active galactic nuclei.

This article discusses electric field induced phase transitions in polymers.

Article on symmetry-induced intermittency in a stochastic reflexive model.

Article on the activation of water on the TiO2 (110) surface.

In this paper, the authors show using scanning tunneling microscopy, spectroscopy, and ab initio calculations that several intercalation structures exist for Na in epitaxial graphene on SiC(0001). Intercalation takes place at room temperature and Na electron-dopes the graphene. It intercalates in-between single-layer graphene and the carbon-rich interfacial layer. It also penetrates beneath the interfacial layer and decouples it to form a second graphene layer. This decoupling is accelerated by annealing and is verified by direct Na deposition onto the interface layer. The authors' observations show that intercalation in graphene is fundamentally different than in graphite and is a versatile means of electronic control.

This article demonstrates that the observed variability cannot be explained by X-ray Binary populations or ultraluminous X-ray sources, so the variability is most likely caused by accretion onto a supermassive black hole.