Fix a prime p. Given a finite group G, let H(G) denote its mod p cohomology. In the early 1990’s, Henn, Lannes, and Schwartz introduced two invariants d0(G) and d1(G) of H∗(G) viewed as a module over the mod p– Steenrod algebra. They showed that, in a precise sense, H∗(G) is respectively detected and determined by H(CG(V )) for d ≤ d0(G) and d ≤ d1(G), with V running through the elementary abel...

The Meeting of Initiative Group for Central European Hepatologic Collaboration (CEHC) took place between 19 and 21 November 2015 in Warsaw. The idea was developed a few months earlier, during informal discussions between hepatologists from the Czech Republic, Hungary, Poland and Slovakia. All these countries located in the heart of the Europe demonstrate similar achievements and problems in hea...

Let p be a prime. We denote by Sn the symmetric group of degree n, by An the alternating group of degree n and by Fp the field with p elements. An important concept of modular representation theory of a finite group G is the notion of a block. The blocks are in one-to-one correspondence with block idempotents, which are the primitive central idempotents of the group ring FqG, where q is a prime...

Recent work on central units of integral group rings is surveyed. In particular we present two methods of constructing central units, induction and lifting, and demonstrate how these constructions can often be used to find generators for large subgroups in the full group of central units of an integral group ring.

This note compares the performance of two multidimensional search and optimization algorithms: Group Search Optimizer and Central Force Optimization. GSO is a new state-of-theart algorithm that has gained some notoriety, consequently providing an excellent yardstick for measuring the performance of other algorithms. CFO is a novel deterministic metaheuristic that has performed well against GSO ...

We trace the evolution of central galaxies in three ∼ 10 M⊙ galaxy groups simulated at high resolution in cosmological hydrodynamical simulations. In all three cases, the evolution in the group potential leads, at z = 0, to central galaxies that are massive, gas-poor early-type systems supported by stellar velocity dispersion resembling either elliptical or S0 galaxies, even without including e...

1. Poovorawan Y, Chongsrisawat V, Boudville I, Bock HL. Dengue virus infection: a major cause of acute hepatic liver failure in Thai children. Ann Trop Paediatr. 2006;26:17–23. http://dx.doi. org/10.1179/146532806X90565 2. Deepak NA, Patel ND. Differential diagnosis of acute liver failure in India. Ann Hepatol. 2006;5:150–6. 3 Carvalho de Macedo F, Nicol AF, Cooper LD, Yearslev M, Pires AR, Nuo...