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Showing 1 to 20 of 31 for “"NCO"”.
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Avaliação do estresse oxidativo no desenvolvimento da hipertensão renovascular : papel protetor dos estrogênios
… divididas em 4 grupos: normotenso controle (NCO), hipertenso controle (HCO), normotenso castrado (NCA) e hipertenso castrado (HCA). Foi induzida a hipertensão renovascular (modelo Goldblatt 2) por 21 dias e, concomitantemente, realizada a ovariectomia. Num grupo de animais, amostras de sangue …
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Determination of the molecular structure of Sulphonyl Chloride Isocyanate using microwave spectroscopy
… whether sulphonyl chloride isocyanate (SO₂CINCO) exists as a mixture of 71° and 110° isomers or as a single 94° isomer where the angle is the dihedral angle between the S-Cl bond and N = C bond, and whether the NCO group is linear or not. The microwave spectrum of SO₂CINCO was assigned for …
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Towards the Quantitative Analysis of the Connectivity Value of Networked Operations
… <p>The concept of Network Centric Operations (NCO) represents a shift from traditional attrition-based approaches to a warfighting style that emphasizes speed of command and self-synchronization. One goal of NCO is to field a force that is capable of achieving information superiority, thus …
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Fluorosulfanylimination including related reactions and structural problems and thiazyl trifluoride complexes of the transition metals
… from pentafluorosulfanyl isocyanate, SF₅NCO, pentafluorosulfanylamine, SF₅NH₂, and pentafluorosulfanyliminosulfur difluoride, SF₅N=SF₂. Reactions of SF₅NCO, SF₅N=SF₂, and SF₅NH₂, with appropriate substrates have produced SFN=S(CH₃)₂, SF₅N=CHC₆H₅, SF₅N=SCl₂, (SF5N=)₂C, (SF5N=)₂S and …
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A Discrete Event Simulation of Network Centric Operations: Modeling Unbalanced Combat Configurations in Symmetric Engagements
<p>Network Centric Operations (NCO) has been dubbed the most significant revolution in military affairs (RMA) in the past 200 years. The promise of NCO is based on the notion that information sharing and connectivity is fundamental to the effectiveness of a combat force. This due to the ability of …
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Ligand-Induced Cleavage Of Dinitrogen By A Hafnium Metallocene Complex
… SIGN]-N)[([eta]5-C5Me3H2)2Hf(NCO)], was isolated upon treatment of [([eta]5-C5Me3H2)2Hf]2([eta]2, [eta]2-N2) with carbon monoxide gas in the presence of 4-dimethylaminopyridine. The molecule proved to be a source of the hafnium-nitride fragment, which reacted with terminal …
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Diazine-bridged coordination polymers of copper and nickel : synthesis and thermal, spectral, structural, and magnetic properties
… cationic lattices, respectively. Cu(mepyz)₂(NCO)₂, a two-dimensional polymer, represents the first compound containing methylpyrazine to be structurally characterized by single crystal X-ray diffraction. Magneto-structural correlations were made for all the compounds. Whenever possible the …
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Étude optique des propriétés électroniques et phononiques de Nd₂₋ₓCeₓCuO₄
… magnétiques existant dans le Nd₂CuO₄ (NCO). L'étude par spectroscopie infrarouge des transitions électroniques a permis d'établir la présence d'atomes d'oxygène dans la structure du NCO sous la forme de défauts interstitiels. Ces résultats sont confirmés par les mesures Raman. Les …
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Electrically Polarised Electrodes in DMSO and DMF electrolytes of Pseudohalide Salts: In situ IR studies supported by EXAFS/XANES and other techniques
… gold electrodes in pseudohalide-containing (i.e. NCO⁻, NCS⁻, NCSe⁻, CN⁻ and TeCN⁻) dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO) solutions, with a supporting electrolyte, tetrabutylammonium perchlorate (TBAP), is presented. Cyclic voltammograms, and current-potential data were recorded …
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Synthesis And Characterization Of Metal Complexes Containing Tetrazolate, Poly(tetrazolyl)borate, And Aryl Pentazole Ligands As High Energy Density Materials
… (ç<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Re(CO)(NCO)(N<sub>2</sub>Ar) was obtained by treatment of the specific rhenium aryldiazenido complexes [(ç<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Re(CO)<sub>2</sub>(N<sub>2</sub>Ar)][BF<sub>4</sub>] …
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A study of antimicrobial properties of fabric treated with silane and N-halamine complex
… fabric are evaluated using SEM- EDX and peak of NCO was determined using FTIR analysis. The fabrics were tested for antimicrobial properties using ATCC 2695 gram positive bacteria <em>Staphylococcus aureus</em> and ATCC 8739 gram negative bacteria <em>Escherichia col</em>i. The treated samples …
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The synthesis and reactivity of binuclear μ-hydrocarbyl complexes of some transition metals
… diacyl compounds of the type, [M(CO)₅]₂{μ-CO(CH₂)nCO} (M = Mn or Re). These diacyl species in turn were synthesized by the reaction of Na[M(CO)s] with diacyl chlorides. All the new compounds have been fully characterized by microanalysis, infrared, ¹H and ¹³C nmr spectroscopy. The mass spectra of …
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Structure-property relationships in polyurethanes from lignin
… effect of synthesis variables and soft segment incorporation on the thermal and mechanical properties. The first part of the study examined the effect of lignin type, of diisocyanate type and of composition (NCO/OH ratio). Stoichiometric excess was found to cause a significant increase in the …
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Preparation and properties of N-pentafluorosulfanylamido derivatives
… from the reaction of SF₅NCO and NH₃ or SF₅NH₂ and HNCO failed.
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Synthesis and characterization of lignin-carbohydrate block copolymers
… that chain extension is limited and a sufficient NCO equivalent/mole is achieved (ie: 1 or 2). • Reaction in solution of this low DP CTA prepolymer with the HPL block. Films were directly obtained by solution casting of the mixture and cured. The parameters of investigation were HPL, or CTA block …
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Homologous Recombination Outcomes of Double-Strand Break- initiated Events in Saccharomyces cerevisiae
… products, crossovers (COs) versus noncrossovers (NCOs), there were no detectable differences in the position/length of exchange sequence. Further physical analysis found slight differences in the rate of repair between the different breaks. These findings were significant as they suggest HR is …
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Guiding Network-Centrtic Architectural Design: a Style-Based Approach
… emerging theory of Network-Centric Operations (NCO). Amongst these technologies is software architecture as a software engineering sub-discipline. Although the concepts of network centricity are widely recognized within the software and system engineering communities, no unified characterization …
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Soldiers, Simulators, and Symmetry: Zeroing in to improve communication with Army training key influencers
… understudied population of Army soldiers, Senior NCOs, especially at the Command Sergeant Major level, as key influencers when it involves what tools get used by soldiers for training. Leveraging Grunig’s two-way symmetrical communication and the Diffusion of Innovations theory as the basis for …
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Some studies in inorganic flourine chemistry
… to prepare Hg(NSF₂)₂ by the treatment of Hg(NCO)₂ with SF₄ in a solvent, such as THF, DMSO, (CH₃)PO₄ or CHCl₃, have failed, apparently due to interfering side reaction and decomposition. In THF and (CH₃)₃P0₄ systems, COF₂ was produced, but no Hg(NSF₂)₂ was produced in the solid product as …
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Towards the democratization of instructional leadership in South African schools: current trends and future possibilities.
… in People's Education which embodies radical/nco-Marxist theories. In spite of the claims of it being basically neutral and value free, educational leadership in South Africa has generally been used to legitimate and reproduce the existing hegemony. An investigation of the positivistic, …
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