Outer-shell s0/p0 orbital mixing with d10 orbitals and symmetry reduction upon cupriphication of cyclic trinuclear trigonal-planar gold(I) complexes are found to sensitize ground-state Cu(I)-Au(I) covalent bonds and near-unity phosphorescence quantum yields. Heterobimetallic Au4Cu2 {[Au4(μ-C2,N3-EtIm)4Cu2(µ-3,5-(CF3)2Pz)2], (4a)}, Au2Cu {[Au2(μ-C2,N3-BzIm)2Cu(µ-3,5-(CF3)2Pz)], (1) and [Au2(μ-C2...

We establish an O(n log2 n) upper bound on the time for deterministic distributed broadcasting in multi-hop radio networks with unknown topology. This nearly matches the known lower bound of (n logn). The fastest previously known algorithm for this problem works in time O(n3=2). Using our broadcasting algorithm, we develop an O(n3=2 log2 n) algorithm for gossiping in the same network model.

In the figure above, we see a lattice of black and white atoms. These could be B and N atoms respectively for a BN-sheet. Using one of the equivalent unit cells (hashed area) and combinations of the unit vectors, ~a1 and ~a2, we can generate the entire lattice. A general translational vector in a periodic lattice can be written as the sum of integer multiples of unit vectors, ~ T (~n) = ~ T (n1...

We give a simple O(n3/2 log n) algorithm for finding a minimum weight odd circuit in planar graphs. By geometric duality, the same algorithm can be used to find minimum weight odd cuts. For general sparse graphs, the fastest known algorithms for these two problems take O(n2 log n) time and O(n3 log n) time, respectively. © 2004 Elsevier B.V. All rights reserved.

The chemistry of the chalcogen azides has been well investigated in the last years [1]. Among the various possible oxidation states of the chalcogens, selenium(IV) and tellurium(IV) possess the highest stability, and the ionic chalcogen(IV) azides [R3Te]N3 and [R3Se]N3 have been described and thoroughly characterized recently [2, 3]. In addition, the first telluronium, selenonium and sulfonium ...

Two M(II) tetranuclear complexes bridged only by azido, Mn4(N3)(7.3)Cl(0.7)L4 (1) and Co4(N3)8L4 (2) in which the four M(II) ions are precisely coplanar bridged only by six azido anions, were obtained by using 4,5-diazafluoren-9-one (L) as a corner ligand. Magnetic studies indicate that ferromagnetic coupling was conducted by the azido anions between M(II) ions. At low temperature, 1 exhibits a...

System studies show that a N3–X hybrid wing-body aircraft with a turboelectric distributed propulsion system using a mail-slot inlet/nozzle nacelle can meet the environmental and performance goals for N+3 generation transports (three generations beyond the current air transport technology level) set by NASA’s Subsonic Fixed Wing Project. In this study, a Navier-Stokes flow simulation of N3–X on...

N3 dye molecules [cis-bis(isothiocyanato)bis(2,2'-bipyridyl-4,4'-dicarboxylato)ruthenium(II)] are covalently attached to boron-doped nanocrystalline diamond (B:NCD) thin films through a combination of coupling chemistries, i.e., diazonium, Suzuki, and EDC-NHS. X-ray and ultraviolet photoelectron spectroscopy and near-edge X-ray absorption fine structure spectroscopy are used to verify the coval...

BACKGROUND The purpose of this study was to assess whether a positron emission tomography (PET)-directed policy remains appropriate for managing neck nodes (N3; >6 cm) in head and neck squamous cell carcinoma (HNSCC). METHODS All patients with N3 (>6 cm) HNSCC treated with definitive chemoradiotherapy (CRT) at our institution between 2005 and 2012 were included in the analysis. Patients under...

Let a⊕b = max(a, b) and a⊗b = a+b for a, b ∈ R and extend the pair of operations to matrices and vectors in the same way as in linear algebra. The homogeneous twosided system in max-algebra is of the form A⊗ x = B ⊗ x. No polynomial method for solving homogeneous system is known. In this paper, we consider homogeneous twosided linear systems in max-algebra in a special case. We show that it can...