The aim of this in vitro study was to evaluate and compare the color stability of different esthetic restorative materials (one microfilled composite, one nanofilled composite, one nanoceramic composite, one microfilled hybrid composite, one microfilled hybrid composite, one nanohybrid Ormocer based composite and one supra-nano spherical hybrid composite) after exposure to different staining so...

The intrinsic low conductivity of sulfur which leads to a low performance at a high current rate is one of the most limiting factors for the commercialization of lithium-sulfur battery. Here, we present an easy and convenient method to synthesize a mono-dispersed hollow carbon sphere with a thin graphitic wall which can be utilized as a support with a good electrical conductivity for the prepar...

Details of quantum knot invariant calculations using a specific SU(3)q –module are given which distinguish the Conway and Kinoshita– Teresaka pair of mutant knots. Features of Kuperberg’s skein-theoretic techniques for SU(3)q invariants in the context of mutant knots are also discussed. AMS Classification 57M25; 17B37, 22E47

We study framed links in irreducible 3-manifolds that are Z-homology 3spheres or atoroidal Q-homology 3-spheres. We calculate the dual of the Kauffman skein module over the ring of two variable power series with complex coefficients. For links in S we give a new construction of the classical Kauffman polynomial.