Abstract The synthesis and properties of silanes bearing a bulky carbazolyl substituent are described. Metathesis routes with different reagents under conditions required to obtain the compounds general formula RSi(X) 2 H All (X=Cl, N 3 , NCO, NCS, NH All=CH CHCH ). were studied by XRD, NMR IR spectroscopy all findings corroborated DFT methods.

Work-related asthma in a bathtub refinishing technician prompted measurements of isocyanate exposure in this operation. Very high levels of hexamethylene diisocyanate (HDI) oligomer, up to 8500 microg/m3 NCO, were found during top varnish spray-painting, whereas the levels of HDI monomer were substantially lower. The results suggest that only full-piece, self-contained respirators would suffice...

We described the information transfer and communication activities of nurse coordinators (NCO), who lead patient flow management in a major trauma center. A field study was conducted to identify information sources and information tools used, leading purposes of communication, and the information types NCOs need for patient flow management. In addition to verbal communication, NCOs frequently u...

In this paper we present an improve m e nt to o ur s e que nti al i nco re i m pl e mentation of a sparse Cholesky factorization based on a hypermatrix storage structure. We allow the inclusion of additional zeros in data submatrices to create larger blocks and in this way use more efficient routines for matrix multiplication. Since matrix multiplication takes about 90% of the total factorizati...

In the title complex, [Co(NCO)(2)(C(10)H(8)N(2))(2)], the Co atom is coordinated by four N atoms from two 2,2'-bipyridyl ligands and two N atoms from two cyanate anions in a distorted octa-hedral geometry. The Co atom lies on a twofold rotation axis. The average Co-N bond length is 2.126 (7) Å. Weak inter-molecular C-H⋯O inter-actions lead to the formation of a three-dimensional network.

1.1 Rationale Realizing the power of Network Centric Operations (NCO) depends directly not only on implementing weapon platform sophistication and lethality advances but also on how efficiently and effectively Units of Action (UofA) exploit information advantage to drive positive battlespace outcomes. We define information advantage following Driscoll and Henderson [1]: given existing intellige...

Necessary conditions of optimality (NCO) play an important role in optimization problems. They are the major tool to select a set of candidates to minimizers. In optimal control theory, the NCO appear in the form of a Maximum Principle (MP). For certain optimal control problems with state constraints, it might happen that the MP are unable to provide useful information — the set of all admissib...