In this paper we investigate convergence structures on a generalized Boolean algebra and their relations to convergence structures on abelian lattice ordered groups.

Characterizing the molecular basis of adaptation is one of the most important goals in modern evolutionary genetics. Here, we report a full-genome sequence analysis of 21 independent populations of vesicular stomatitis ribovirus evolved on the same cell type but under different demographic regimes. Each demographic regime differed in the effective viral population size. Evolutionary convergence...

A quantitative semantics for infinite timed words in timed automata based on the frequency of a run is introduced in [BBBS11]. Unfortunately, most of the results are obtained only for one-clock timed automata because the techniques do not allow to deal with some phenomenon of convergence between clocks. On the other hand, the notion of forgetful cycle is introduced in [BA11], in the context of ...

L’industrie de la recherche d’information a connu en 2007 une période de grande convergence capitalistique. Ceci est un signe indirect des coûts croissants de recherche et développement dans ce domaine : infrastructures matérielles, logicielles, accès aux utilisateurs, expertise des problématiques d’entreprise. Ces dépenses sont difficiles à internaliser au sein d’unités de recherche isolées et...

The development of outgrowths from plant shoots depends on formation of epidermal sites of cell polarity convergence with high intracellular auxin at their centre. A parsimonious model for generation of convergence sites is that cell polarity for the auxin transporter PIN1 orients up auxin gradients, as this spontaneously generates convergent alignments. Here we test predictions of this and oth...

Twenty-five characters or suites of characters from bats are considered in light of changes in bat classification. The characters include some associated with flower-visiting (two), echolocation (12), roosting (six), reproduction (two) and three are of unknown adaptive function. In both the 1998 and 2006 classifications of bats into suborders (Megachiroptera and Microchiroptera versus Yinpteroc...

Technological developments produced through physics-based scientific convergences, known as Convergence 1.0 in the twentieth century, took place shadow of driving force war. Radio, television, telephone, aeroplane, radar, and computer, which have become inseparable parts human life today, are products these convergences. The twenty-first century is age biology-based convergences production, cal...