The wetting behaviour of methane on graphite has been studied by means of low energy electron diffraction and reflection high energy electron diffraction in the temperature range 14-40 K. Incomplete wetting, or crystallite formation, is detected over the entire temperature range for films with thicknesses of 15 or more layers. Isosteric heats of adsorption are reported for the 2nd, 3rd and 4th ...

© 2014 Knutsen and Fredriksen; licensee BioM Creative Commons Attribution License (http:/ distribution, and reproduction in any medium Domain Dedication waiver (http://creativecom article, unless otherwise stated. doi:10.1186/1757-7241-22-3 Cite this article as: Knutsen and Fredriksen: Correction: usage of documented pre-hospital observations in secondary care: a questionnaire study and retrosp...

Nerve cells form elaborate, highly branched dendritic trees that are optimized for the receipt of synaptic signals. Recent work published in this issue of Genes & Development by Rosario and colleagues (pp. 1743-1757) shows that a Cdc42-specific GTPase-activating protein (NOMA-GAP) regulates the branching of dendrites by neurons in the top layers of the mouse cortex. The results raise interestin...

Radio pulsars are thought to spin-down primarily due to torque from magnetic dipole radiation (MDR) emitted by the time-varying stellar magnetic field as the star rotates. This assumption yields a 'characteristic age' for a pulsar which has generally been assumed to be comparable to the actual age. Recent observational limits on the proper motion of pulsar B1757–24, however, revealed that the a...