A code C ⊆ Fn 2 is a (c, ǫ, δ)-expander code if it has a Tanner graph, where every variable node has degree c, and every subset of variable nodes L0 such that |L0| ≤ δn has at least ǫc|L0| neighbors. Feldman et al. (IEEE IT, 2007) proved that LP decoding corrects 3ǫ−2 2ǫ−1 · (δn − 1) errors of (c, ǫ, δ)expander code, where ǫ > 2 3 + 1 3c . In this paper, we provide a simpler proof of their resu...

In this paper, we consider the l0 norm minimization problem with linear equation and nonnegativity constraints. By introducing the concept of generalized Z-matrix for a rectangular matrix, we show that this l0 norm minimization with such a kind of measurement matrices and nonnegative observations can be exactly solved via the corresponding lp (0 < p ≤ 1) norm minimization. Moreover, the lower b...

The activation of aryl iodides and bromides by Cu(0)/1,10-phenanthroline in acetonitrile (S) generates Cu(I)(phenanthroline)S(2)(+) which can be a catalyst for cross-coupling reactions.

In the title complex, [Co(NCS)(2)(C(16)H(16)N(2)O(2))], the Co(II) ion is coordinated by two N atoms from one 2,9-dieth-oxy-1,10-phenanthroline ligand and two N atoms from two different thio-cyanate ligands in a distorted tetra-hedral environment. The Co-N bonds involving the thio-cyanate ligands are significantly shorter than the other two Co-N bonds. The atoms of one of the eth-oxy groups are...

The asymmetric unit of the title Cd(II) compound, [Cd(N(3))(2)(C(12)H(8)N(2))](n), contains a Cd(II) atom, located on a twofold axis passing through the middle of the phenanthroline mol-ecule, one azide ion and half of a 1,10-phenanthroline mol-ecule. The Cd(II) atom exhibits a distorted octa-hedral coordin-ation including one chelating 1,10-phenanthroline ligand and four azide ligands. The cry...

We have determined that the restriction endonuclease Eco RI contains 1.0 +/- 0.1 eq of zinc/monomeric enzyme. DNA cleavage by Eco RI is inhibited by ortho-phenanthroline after preincubation of the enzyme with the chelating agent. A similar inhibition by the nonchelating meta-phenanthroline is not seen. The sensitivity of the inhibition by the neutral ligand ortho-phenanthroline to preincubation...

Consider a complex symplectic manifold X and the algebroid stack WX of deformation-quantization. For two regular holonomic WXmodules Li (i = 0, 1) supported by smooth Lagrangian submanifolds, we prove that the complex RHom WX (L1,L0) is perverse over the field Wpt and dual to the complex RHomWX(L0,L1).

A series of [Re(5-R-phen)(CO)3(X)]0/+, where phen = 1,10-phenanthroline, R H, CN, COOH, COONH2, and X Cl or pyridine, was prepared characterized by elemental analyses, NMR, Vis/UV, emission cyclic voltammetry. The complexes absorb in the near-ultraviolet region spectrum, emit between 550 600 nm with lifetimes 150 500 ns, undergo irreversible oxidation at 1.45 V a reversible reduction 1,10-phena...

The title compound, [Co(C(2)Cl(3)O(2))Cl(C(12)H(8)N(2))(2)], was obtained by the reaction of trichloro-acetic acid and CoCl(2) in the presence of 1,10-phenanthroline. The Co(II) ion exhibits a distorted octa-hedral geometry, with three N atoms from two 1,10-phenanthroline ligands and the Cl(-) ion in the equatorial plane and one O atom from the trichloro-acetate ligand and one phenanthroline N ...

We describe complexes of ruthenium and europium with rigid, 5'-6-locked 1,10-phenanthroline-containing nucleosides. Both nucleosides were synthesized from condensation of 5-amino-2'-deoxycytidine with the corresponding diketone. The ruthenium nucleoside displayed fluorescence characteristic of polypyridine ruthenium complexes with a maximum at 616 nm and a quantum yield of 0.011. Binding of eur...