DBin is a SemanticWeb application that enables groups of users with a common interest to cooperatively create semantically structured knowledge bases. Such Semantic Web Communities are made possible by creating customized user environments called Brainlets. Brainlets provide user interfaces and domain

We present a mechanism for recovering consistent data from inconsistent set of assertions. For a common family of knowledge-bases we also provide an efficient algorithm for doing so automaticly. This method is nonmonotonic and paraconsistent. It is particularly useful for making diagnoses on faulty devices. Subject areas: Knowledge-based systems, Non-standard logics for AI, Reasoning under unce...

nesses. Knowledge-based techniques that are listed above have two common characteristics: 1. they all work on knowledge bases containing ergo-nomic rules (i.e., guidelines, design rules, recommendations). However, we will see how these various rules have been coded and used within the tools.

Three-component couplings were achieved from common aryl halides, alkyl halides, and heteroarenes under palladium and norbornene co-catalysis. The reaction forges hindered aryl-heteroaryl bonds and introduces ortho-alkyl groups to aryl rings. Various heterocycles such as oxazoles, thiazoles and thiophenes underwent efficient coupling. The heteroarenes were deprotonated in situ by bases without ...

This paper addresses the problem of eecient construction of monomial bases for the coordinate rings of zero-dimensional varieties. Existing approaches rely on Grr ob-ner bases methods { in contrast, we make use of recent developments in sparse elimination techniques which allow us to strongly exploit the structural sparseness of the problem at hand. This is done by establishing certain properti...

Excited electronic states created by UV excitation of the diribonucleoside monophosphates ApA, ApG, ApC, ApU, and CpG were studied by the femtosecond transient-absorption technique. Bleach recovery signals recorded at 252 nm show that long-lived excited states are formed in all five dinucleosides. The lifetimes of these states exceed those measured in equimolar mixtures of the constituent monon...

A -matroid is a collection B of subsets of a finite set I, called bases, not necessarily equicardinal, satisfying the symmetric exchange property: For A,B ∈ B and i ∈ A B, there exists j ∈ B A such that (A {i, j}) ∈ B. A -matroid whose bases all have the same cardinality modulo 2 is called an even -matroid. The basis graph G=G(B) of an even -matroid B is the graph whose vertices are the bases o...

Single-molecule real-time (SMRT) sequencing allows identification of methylated DNA bases and methylation patterns/motifs at the genome level. Using SMRT sequencing, diverse bacterial methylomes including those of Helicobacter pylori, Lactobacillus spp., and Escherichia coli have been determined, and previously unreported DNA methylation motifs have been identified. However, the methylomes of X...

Robust intelligent systems require commonsense knowledge. While significant progress has been made in building large commonsense knowledge bases, they are intrinsically incomplete. It is difficult to combine multiple knowledge bases due to their different choices of representation and inference mechanisms, thereby limiting users to one knowledge base and its reasonable methods for any specific ...

The methods described in this paper are devised for the separation of the common nucleotides, nucleosides, and purine and pyrimidine bases on one column at one pH with the compounds quantitated by a sensitive automatic technique. Following the classical work of Cohn and co-workers (l-6)) nucleotides have been generally separated on anion-exchange columns at acid pH’s, nucleosides on anion-excha...