We give a basis for the space spanned by the sum ŝλ of the lowest degree terms in the expansion of the Schur symmetric functions sλ in terms of the power sum symmetric functions pμ, where deg(pi) = 1. These lowest degree terms correspond to minimal border strip tableaux of λ. The dimension of the space spanned by ŝλ, where λ is a partition of n, is equal to the number of partitions of n into pa...

We propose a bottom-up variant of Earley deduction. Bottom-up deduction is preferable to top-down deduction because it allows incrementai processing (even for head-driven grammars), it is data-driven, no subsumption check is needed, and preference values attached to lexical items can be used to guide best-first search. We discuss the scanning step for bottom-up Earley deduction and indexing sch...

We describe calculations of bb production to next-to-next-to-leading order (NNLO) and next-to-next-to-leading logarithm (NNLL) near threshold in pp interactions. Our calculations are in good agreement with the bb total cross section measured by HERA-B. Factorization assumes it is possible to separate QCD cross sections into universal, non-perturbative parton densities and a perturbatively calcu...

In the springtime, young men’s thoughts turn to love, but old men begin to contemplate retirement. I have lost count now, but this spring will be either the fourth or fifth time I will have retired and I am now looking forward to the next things I want to do. When I was in my fifties, twenty years ago, I was worried about retirement, having seen what happened to people I knew when they were tos...

These short notes provide descriptions and references relative to the construction of parsing tables for SLR(1), for LR(1), and for LALR(1) grammars. 1 Notation and basic definitions Basic definitions and notational conventions are summerized below. A context-free grammar is a tuple G = (V, T, S,P), where the elements of the tuple represent, respectively, the vocabulary of terminal and nontermi...

For the first time the entire sequence of the mating behaviour of Antarctic krill (Euphausia superba) in the wild is captured on underwater video. This footage also provides evidence that mating can take place near the seafloor at depths of 400-700 m. This observation challenges the generally accepted concept of the pelagic lifestyle of krill. The mating behaviour observed most closely resemble...