Abstract. Second-order boundary value problems are solved with exponentially-fltted Numerov methods. In order to attribute a value to the free parameter in such a method, we look at the leading term of the local truncation error. By solving the problem in two phases, a value for this parameter can be found such that the tuned method behaves like a sixth order method. Furthermore, guidelines to ...

In this paper we address the issue of pruning (i.e., shortening) a given interleaver via truncation of the transposition vector of the mother permutation and study its impact on the structural properties of the permutation. This method of pruning allows for continuous uninterrupted data flow regardless of the permutation length since the permutation engine is a buffer whose leading element is s...

We study the indefinite Kac–Moody algebras AEn, arising in the reduction of Einstein’s theory from (n+1) space-time dimensions to one (time) dimension, and their distinguished maximal regular subalgebras An−1 ≡ sln and A n−2. The interplay between these two subalgebras is used, for n = 3, to determine the commutation relations of the ‘gradient generators’ within AE3. The low level truncation of...

The high-affinity human granulocyte-macrophage colonystimulating factor (GM-CSF) receptor (GMR) consists of an alpha (GMRa) and a common beta (bc) subunit. The intracellular domain of bc has been extensively characterized and has been shown to be critical for the activation of both the JAK/STAT and MAP kinase pathways. The function of the intracellular domain of GMRa, however, is not as well ch...

We have identified a lethal phenotype characterized by sudden infant death (from cardiac and respiratory arrest) with dysgenesis of the testes in males [Online Mendelian Inheritance in Man (OMIM) accession no. 608800]. Twenty-one affected individuals with this autosomal recessive syndrome were ascertained in nine separate sibships among the Old Order Amish. High-density single-nucleotide polymo...