while risk reduction has been mainly addressed by seismologists and engineers by now, the total impact of earthquake greatly depends on urban planning factors. the effects of planning can be considered in the socio economic and physical aspects. urban planning may have a dominant role in various earthquake phases: at the time of earthquake; rescue, and emergency, as well as temporary and perman...

n root of a Lie algebra and its dual (that is fractional supergroup ) based on the permutation group Sn invariant forms is formulated in the Hopf algebra formalism. Detailed discussion of S3-graded sl(2) algebras is done.

We introduce the h-deformation of the algebra of functions on the grass-mann supergroup Gr(1|1) via a contraction of Gr q (1|1).

We show that in the context of topological string theories N branes and M anti-branes give rise to Chern-Simons gauge theory with the gauge supergroup U (N |M). We also identify a deformation of the theory which corresponds to brane/anti-brane annihilation.

Exact supersymmetry can be maintained on non-anticommutative superspace with a twisted coproduct on the supergroup.We show that the usual exchange statistics for the superfields is not compatible with the twisted action of the superpoincaré group and find a statistics which is consistent with the twisted coproduct and imply interesting phenomena such as mixing of fermions and bosons under parti...

study of patient teaching importance from point of views   in azad university nursing students in karaj in 1382     m. gotlarzi [1] , m.s m.a. ahmadvand [2] , m.d m.farajollahi [3] m.d     abstract:     introduction: large multicenter trials have been shown that patients training are very important in reduction of patients stay in hospital and recurent addmission ‑ cost of treatment and prevent...