Let G be a finite group. Denote by ψ(G) the sumψ(G)=∑x∈G|x|, where |x| denotes order of element x, and o(G) quotiento(G)=ψ(G)|G|. Confirming conjecture posed E.I. Khukhro, A. Moreto M. Zarrin, we prove that if o(G)<o(A5), then is solvable.

Since 2014 the situation in Mediterranean Sea has been named and tackled as a ‘refugee crisis’, name of this ‘crisis’ migrants have accommodated ‘hotspots’ camps. Within these spaces, their experiences often articulated by humanitarian sector discipline psychology traumatic, with refugees being described traumatised. In article, I critically discuss politics trauma within European territory aid...

Within a perturbative approach we investigate decays of charmonium states into baryon-antibaryon pairs. Using a recently proposed wave function for the nucleon and suitable generalizations of it to the hyperons and decouplet baryons, we obtain the decay widths for the BB channels in reasonable agreement with data. An important difference to previous work is the use of the c-quark mass in the pe...

Measurements of branching fractions for ψ(2S) decays into ωππ, b1π, ωf2(1270), ωKK, ωpp̄, φππ, φf0(980), φK K, and φpp̄ final states, based on a data sample of (4.02 ± 0.22) × 10 ψ(2S) events collected with the BESI detector at the Beijing ElectronPositron Collider, are reported. Using the same event sample, radiative decays of the radially excited charmonium resonance, ψ(2S), into ππ, KK and ηη ...