We present data and initial results from VLT/X-Shooter emission-line spectroscopy of 96 galaxies selected by long γ-ray bursts (GRBs) at 0.1 < z < 3.6, the largest sample of GRB host spectra available to date. Most of our GRBs were detected by Swift and 76% are at 0.5 < z < 2.5 with a median zmed ∼ 1.6. Based on Balmer and/or forbidden lines of oxygen, nitrogen, and neon, we measure systemic re...

This paper scratches the surface of the problem of classifying the attacks that a mobile computation can be subjected to in an open network. The discussion is based on a simplified version of the Seal calculus. We show the impact of these attacks on the semantics of the calculus and on the notion of observational equivalence.

New anion hosts have been accessed using cationic organometallic fragments with sufficient kinetic stability as geometry-organizing cores, simple ditopic ligands featuring hydrogen bond donor groups, and the inert, low interacting, lipophilic BAr'(4) anion.