The interoperability of classification schemes is an urgent need for information organization & retrieval. Now, it is often to recognize and build up the mapping relationship between classes by hand in EU project Renardus and other projects. Each class of CLC or DDC can be looked as a concept, and the integrity of concept can be divided into several concept elements expressed by words. We can c...

We have studied the compositional distribution of six genes (or small multigene families) and of one family of transposable elements, Tnt1, in DNA fractions from tobacco (Nicotiana tabacum) separated according to base composition. We have shown that gene distribution is bimodal and that such bimodality is due to the different base composition of the two parental genomes of tobacco (N.sylvestris...

We prove that the mapping class group of a closed connected orientable surface genus $$g\ge 6$$ is generated by two elements order g. Moreover, for 7$$ , we obtain generating set elements, g and $$g'$$ where least divisor greater than 2. also $$g/\gcd (g,k)$$ 3k^2+4k+1$$ any positive integer k.

An insertion sequence, IS22, in Pseudomonas aeruginosa PAO was identified by its genetic properties. It occurred as a single copy in the chromosome, as shown by Southern hybridization. A restriction map of it was constructed.

There is an increasing demand for discovering meaningful relationships, i.e., mappings, between conceptual models for interoperability. Current solutions have been focusing on the discovery of correspondences between elements in different conceptual models. However, a complex mapping associating a structure connecting a set of elements in one conceptual model with a structure connecting a set o...

Wajnryb proved in [W2] that the mapping class group of an orientable surface is generated by two elements. We prove that one of these generators can be taken as a Dehn twist. We also prove that the extended mapping class group is generated by two elements, again one of which is a Dehn twist.

The electron microprobe allows elemental abundances to be mapped at the microm scale, but until now high resolution mapping of light elements has been challenging. Modifications of electron microprobe procedure permit fine-scale mapping of carbon. When applied to permineralized fossils, this technique allows simultaneous mapping of organic material, major matrix-forming elements, and trace elem...