The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2PF(6) (-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions (the methyl substituents are ordered). This imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 81.3 (8)° for one disorder component and 83.8 (8)° for the...

The title hydrated molecular salt, C(12)H(9)N(2)OS(+)·Br(-)·H(2)O, the aza-substituted six-membered ring is present as its keto tautomer instead of its aromatic tautomer. The dihedral angle between the fused ring system and the pyridinone ring in the cation is 6.91 (6)°. In the crystal, bifurcated N-H⋯(O,Br) and O-H⋯Br hydrogen bonds and S⋯O contacts [S⋯O = 3.0526 (10) Å] connect the components...

In the title solvate, C44H30Cl2N2O2·2C4H8O2, the complete polycyclic mol-ecule is generated by inversion symmetry. The dihedral angle between the quinolyl ring system (Q; r.m.s. deviation = 0.020 Å) and the pendant phenyl ring is 78.80 (6)°; the dihedral angle between Q and the central benzene ring is 85.92 (7)°. In the crystal, the components are linked by C-H⋯O and C-H⋯π inter-actions, genera...

The title compound, C(12)H(9)FN(2)O(2), was prepared by the reaction of 2-fluoro-benzaldehyde and furan-2-carbohydrazide. The furan ring is disordered over two sets of sites with refined occupancies of 0.60 (3):0.40 (3). The major and minor components of the furan ring make dihedral angles of 51.9 (6) and 38.0 (10)°, respectively, with the benzene ring. In the crystal, mol-ecules are linked via...

We present an approach for semantic relation extraction between nominals that combines shallow and deep syntactic processing and semantic information using kernel methods. Two information sources are considered: (i) the whole sentence where the relation appears, and (ii) WordNet synsets and hypernymy relations of the candidate nominals. Each source of information is represented by kernel functi...

The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2Br(-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered. The imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral an...

The use of the serializability criterion of correctness allows the eliminationof global synchronization in production system machines. In this paper we present an extensive performance evaluation of a concurrent production system architecture that is based on se-rializability and takes advantage of modern associa-tive memory devices to allow parallel production ring , concurrent matching, and o...

let $f: arightarrow b$ be a ring homomorphism and let $j$ be an ideal of $b$. in this paper, we investigate the transfer of the property of coherence to the amalgamation $abowtie^{f}j$. we provide necessary and sufficient conditions for $abowtie^{f}j$ to be a coherent ring.

Mutation of the Src64 gene of Drosophila results in ovarian ring canal defects and reduced female fertility. We used a dosage-sensitive modifier screen to search for downstream components of the SRC64 signaling pathway. We show that mutations affecting Tec29, an essential gene encoding a member of the Tec family of protein tyrosine kinases, dominantly enhance the Src64 ring canal phenotype. Los...

The division site in both chloroplasts and bacteria is established by the medial placement of the FtsZ ring, a process that is in part regulated by the evolutionarily conserved components of the Min system. We recently showed that mechanosensitive ion channels influence FtsZ ring assembly in both Arabidopsis thaliana chloroplasts and in Escherichia coli; in chloroplasts they do so through the s...