education of library and information science (lis) has several problems that are caused by the changing nature of the discipline and the social, economic and cultural contexts in which lis departments function. the aim of this article is to enumerate and discuss some of the common problems of lis education in developing countries of asia and suggest solutions. we show that as asian developing c...

A splicing system is a formal model of a recombinant behaviour of sets of double stranded DNA molecules when acted on by restriction enzymes and ligase. In this survey we will concentrate on a specific behaviour of a type of splicing systems, introduced by Păun and subsequently developed by many researchers in both linear and circular case of splicing definition. In particular, we will present ...

We continue the study of statistical zero-knowledge (SZK) proofs, both interactive and noninteractive, for computational problems on point lattices. We are particularly interested in the problem GapSPP of approximating the ε-smoothing parameter (for some ε < 1/2) of an n-dimensional lattice. The smoothing parameter is a key quantity in the study of lattices, and GapSPP has been emerging as a co...

We present two results to aid the numerical solution of the notoriously di¢ cult discrete-time inventory model with stochastic demands, a constant leadtime, and lost sales. First, we show that the e¤ective state space is a relatively manageable compact set. Second, we show that the optimal cost is increasing in the leadtime, and we use this fact to construct a good lower bound on the optimal-co...