In hydrostatic skeletons, it is the internal fluid under pressure surrounded by a body wall in tension (rather than a rigid lever) that enables the stiffening of the organism, the antagonism of muscles and the transmission of force from the muscles to the environment. This study examined the ontogenetic effects of body size on force production by an organism supported with a hydrostatic skeleto...

Earthworms play an active role in soil nitrogen cycling. Past research has shown that earthworm castings are enriched in NO3 ÿ and NH4 + and show a high potential for microbial nitri®cation and denitri®cation. Little information is available on microbial populations and N transformations in the 1±2 mm thick soil lining of earthworm burrows (the drilosphere). We measured nitrifying bacterial pop...

The Block Sorting Lossless Data Compression Algorithm (BWT) described by Burrows and Wheeler has received considerable attention. Its compression rates are simliar to context-based methods, such as PPM, but at execution speeds closer to Ziv–Lempel techniques. This paper describes the Lexical Permutation Sorting Algorithm (LPSA), its theoretical basis and delineates its relationship to BWT. In p...

We formulate and explain the extended Burrows–Wheeler transform ofMantaci et al. from the viewpoint of permutations on a chain taken as a union of partial order-preserving mappings. In so doing we establish a link with syntactic semigroups of languages that are themselves cyclic semigroups.We apply the extended transformwith a view to generating de Bruijn words through inverting the transform. ...

The Burrows Wheeler Transform, first published in 1994, is a relatively new approach to text compression and has already proven to produce excellent results. However, there has been much research directed towards improving the efficienc y of the Move to Front algorithm with varying degrees of complexity. This paper examines a relatively simple technique using a dual modeling system and achieves...

In this short report, I share my experience of getting to know the choreographic practice choreographer Jonathan Burrows and composer Matteo Fargion using Motion Bank digital annotation tool...

The yellow-bellied marmot spends approximately 80% of its life in a burrow. Burrows provide protection from the rigors of the environment, predators and other marmots. They provide a hibernaculum in winter and may function as a nursery in summer. Selection of a burrow site is therefore an important aspect in the biology of marmots. Measurements were made on direction of exposure, angle of slope...