Two-factor anonymous authentication using password and smart card could preserve user privacy and reduce the risk than the use of a single authentication factor. Recently, Chang et al. pointed some security weaknesses in Wang et al.’s anonymous authentication scheme and proposed enhanced scheme. They claimed that their scheme provides desired security properties. However, we show that Chang et ...

We present an extension of the window flow control analysis by R. Agrawal et. al. (Reference [1]), C.-S. Chang (Reference [6]), and C.-S. Chang et. al. (Reference [8]) to a system with random service time and fixed feedback delay. We consider two network service models. In the first model, the network service process itself has no time correlations. The second model addresses a two-state Markov...

The interrelation between Ferreira’s Hopf solitons of a conformal nonlinear σ model and the electromagnetic knots found by Rañada et al. is investigated. It is shown that the electromagnetic knots yield exact solutions of the conformal nonlinear σ model different from those obtained by Ferreira. Conversely, It is discussed that Ferreira’s solutions realize magnetic knots. The energy associated ...

In this article, we introduce a new general iterative method for finding a common element of the set of solutions generalized for mixed equilibrium problems, the set of solution for fixed point for nonexpansive mappings and the set of solutions for the variational inclusions for b1, b2-inverse-strongly monotone mappings in a real Hilbert space. We prove that the sequence converges strongly to a...

We introduce an iterative algorithm for finding a common element of the set of solutions of a system of mixed equilibrium problems, the set of solutions of a general system of variational inequalities for Lipschitz continuous and relaxed cocoercive mappings, the set of common fixed points for nonexpansive semigroups, and the set of common fixed points for an infinite family of strictly pseudoco...

We introduce a new general iterative method for finding a common element of the set of solutions of fixed point for nonexpansive mappings, the set of solution of generalized mixed equilibrium problems, and the set of solutions of the variational inclusion for a β-inverse-strongly monotone mapping in a real Hilbert space. We prove that the sequence converges strongly to a common element of the a...

In their recent paper, Chang et al. (2012) explained some inconsistencies in the results for the number of insular cortex clusters. They reported three insular clusters, one anterior dorsal, one posterior dorsal, and one middle-anterior ventral. In a previous paper (Cauda et al. 2011) on the same subject, we parcellated the insula into two clusters, one anterior ventral and one posterior dorsal...

IT was recently shown [Clutterbuck et al., 1934] that Penicillium Charlesii G. Smith, when grown on nutrient solutions containing glucose, produces two new polysaccharides, mannocarolose [Haworth et al., 1935] and galactocarolose, together with a number of new organic acids. The polysaccharides were isolated by precipitation from the evaporated metabolism solution with acetone, and the acids by...