Abstract We study accretion environments of active galactic nuclei when a supermassive black hole wanders in circumnuclear region and passes through an interstellar medium there. It is expected that Bondi–Hoyle–Lyttleton-type the matter takes place stream trapped by gravitational field appears from tail shock region. Since likely to have certain amount specific angular momentum, eventually form...

The photoionization of three N-heterocyclic carbenes (NHCs) has been studied in the valence and core regions using synchrotron radiation. We observed different variations in the relative band intensities with photon energy for the NHCs in the valence ionization region. This is due to the intra-ring interactions between the C=C bond, nitrogen and carbene lone pairs in the heterocyclic ring of NH...

Using a complete set of RING domains from Drosophila melanogaster, all the solved RING domains and cocrystal structures of RING-containing ubiquitin-ligases (RING-E3) and ubiquitin-conjugating enzyme (E2) pairs, we analyzed RING domains structures from their primary to quarternary structures. The results showed that: i) putative orthologs of RING domains between Drosophila melanogaster and the ...

Beehive is an experimental many-core computer implemented on a single FPGA. The system includes a number of RISC cores that are connected to each other and to main memory using a token ring interconnect. Among other things, the token ring is used to maintain a set of global hardware locks using a ring lock protocol. A multiring extension of the Beehive token ring has been proposed for which a m...