Properties of programs can be formulated using various techniques: dataflow analysis, abstract interpretation and type-like inference systems. This paper reconstructs strictness analysis (establishing when function parameters are evaluated in a lazy language) as a dataflow analysis by expressing the dataflow properties as an effect system. Strictness properties so expressed give a clearer opera...

the epigenetic alterations like histone modifications , dna methylation and others remarkable categories  including nucleosome remodeling and rna mediated targeting have been strongly investigated  recently .in this way , beside the notable importance of dna methylation ,the histone modifications are the most important issues in the  tumorogenesis and cancer progression. moreover, the fluctuati...

Lukasiewicz implication algebras are the {→, 1}-subreducts of MV algebras. They are the algebraic counterpart of SuperLukasiewicz Implicational Logics. We give a description of free Lukasiewicz implication algebras in the context of McNaughton functions. More precisely, we show that the |X|-free Lukasiewicz implication algebra is isomorphic to ⋃ x∈X [xθ) for a certain congruence θ over the |X|-...

Even though the most important questions about the acquisition of (L2) sound systems concern change over time (like the effect of age of onset; acquisition orders, perception vs. production; implicational relationships), most research has investigated the outcomes of phonological development rather than the process itself. I will argue that only a longitudinal, processbased approach can truly i...

We investigate properties of monadic purely negational fragment of Intuitionistic Control Logic (ICL). This logic arises from Intuitionistic Propositional Logic (IPL) by extending language of IPL by additional new constant for falsum. Having two different falsum constants enables to define two forms of negation. We analyse implicational relations between negational monadic formulae and present ...

The canonical base of a formal context is a minimal set of implications that is sound and complete. A recent paper has provided a new algorithm for the parallel computation of canonical bases. An important extension is the integration of expert interaction for Attribute Exploration in order to explore implicational bases of inaccessible formal contexts. This paper presents and analyzes an algor...

The notion of a Horn extended feature structure (HoXF) is introduced, which is a feature structure constrained so that its only allowable extensions are those satisfying some set of Horn clauses in feature-term logic. HoXF's greatly generalize ordinary feature structures in admitting explicit representation of negative and implicational constraints. In contradis-tinction to the general case in ...

We are interested in the problem of translating between two representations closure systems, namely implicational bases and meet-irreducible elements. Albeit its importance, is open. Motivated by this problem, we introduce splits an base. It a partitioning operation implications which apply recursively to obtain binary tree representing decomposition show that can be conducted polynomial time s...

Drawing upon a recent review of the topic by Cross and Tolbert (2009), this paper briefly illustrates the diversity of theories concerning the nature of meanings in music and the challenges that need to be resolved to advance the field. A scheme for layered macroand micro-theories for neural, mental and behavioural systems is outlined to facilitate the development of a systematic and coherent b...

Introduction The acquisition of vowels by normally developing children is an area that has received increasing attention in the past decade, but the substitutions that characterize children’s speech remain largely undocumented. Looking at adult phonological substitutions1, we find that the range of normal substitutions is very wide, but clear. There is every reason to believe that we should fin...