42 research outputs found
Topological Interference Management With Transmitter Cooperation
Interference networks with no channel state information at the transmitter except for the knowledge of the connectivity graph have been recently studied under the topological interference management framework. In this paper, we consider a similar problem with topological knowledge but in a distributed broadcast channel setting, i.e., a network where transmitter cooperation is enabled. We show that the topological information can also be exploited in this case to strictly improve the degrees of freedom (DoF) as long as the network is not fully connected, which is a reasonable assumption in practice. Achievability schemes from graph theoretic and interference alignment perspectives are proposed. Together with outer bounds built upon generator sequence, the concept of compound channel settings, and the relation to index coding, we characterize the symmetric DoF for the so-called regular networks with constant number of interfering links, and identify the sufficient and/or necessary conditions for the arbitrary network topologies to achieve a certain amount of symmetric DoF
Efficient Reconstruction of Metabolic Pathways by Bidirectional Chemical Search
One of the main challenges in systems biology is the establishment of the metabolome: a catalogue of the metabolites and biochemical reactions present in a specific organism. Current knowledge of biochemical pathways as stored in public databases such as KEGG, is based on carefully curated genomic evidence for the presence of specific metabolites and enzymes that activate particular biochemical reactions. In this paper, we present an efficient method to build a substantial portion of the artificial chemistry defined by the metabolites and biochemical reactions in a given metabolic pathway, which is based on bidirectional chemical search. Computational results on the pathways stored in KEGG reveal novel biochemical pathways
Principes socialistes
Includes bibliographical references and index.Mode of access: Internet
L'Entente, la Grèce & la Bulgarie; notes d'histoire et souvenirs,
Mode of access: Internet
Principes socialistes /
Includes bibliographical references and index.Mode of access: Internet
L'Entente, la Grèce & la Bulgarie : notes d'histoire et souvenirs, / par Gabriel Deville.
Principes socialistes / par Gabriel Deville
Collection : Bibliothèque socialiste internationale ; 1Contient une table des matière