The estimation of the amount of evolutionary divergence that has taken place between two DNA coding sequences depends strongly on the degree of constraint on amino acid replacements. If amino acid replacements are relatively unconstrained, the individual nucleotide is the appropriate unit of analysis and the method of Tajima and Nei can be used. If amino acid replacements are constrained, howev...

This article analyses the ways in which portraits were associated with religious and sacred ideas concepts late antique Rome. Rather than straightforward, identification of a visual representation an individual as was subject to discussion controversy, definition these categories shifted different agents became involved process. Portraits show that rather immanent image, such or could be approp...

The purpose of this paper is to analyse the competitive performance of the EU countries for food trade in the European market during the period 1990-2003. To assess such performance the analysis considers comparative advantage and evaluates three indices: export market share (EMS), revealed comparative advantage (RCA) and net export index (NEI). These three indices are found to be high in the N...

METHODS. Mouse TM in situ was studied by light and electron microscopy (EM). In addition, TM was isolated from the H-2K-tsA58 transgenic mouse strain in which promoter sequences of the major histocompatibility complex H-2K class 1 gene are fused to sequences of the SV40 mutant temperature-sensitive (ts) strain tsA58. The promoter is inducible by interferon (IFN)-y, and the tsA58 gene product is...