Gauge unification in a five dimensional supersymmetric SO(10) model compactified on an orbifold S/(Z2 × Z ′ 2) is studied. One orbifolding reduces N = 2 supersymmetry to N = 1, and the other breaks SO(10) to the Pati-Salam gauge group SU(4)C × SU(2)L × SU(2)R. Further breaking to the standard model gauge group is made through the Higgs mechanism on one of the branes. The differences of the thre...

In the title compound, C(14)H(11)NO(2)S, the sulfoxide O atom is disordered over two sites with occupancies of 0.886 (4) and 0.114 (4), reflecting a partial inversion of the lone pair at the tetra-hedral S-atom site. In the crystal, a supra-molecular arrangement arises from weak inter-molecular C-H⋯O hydrogen bonds. π-π contacts between the aromatic rings of symmetry-related mol-ecules [centroi...

SWI-Prolog is a Prolog implementation based on a subset of the WAM (Warren Abstract Machine). SWI-Prolog was developed as an open Prolog environment, providing a powerful and bi-directional interface to C in an era this was unknown to other Prolog implementations. This environment is required to deal with XPCE, an object-oriented GUI system developed at SWI. XPCE is used at SWI for the developm...