Ž . The literature suggests the existence of critical success factors CSFs for the development of information systems that support senior executives. Our study of six organizations gives evidence for this notion of CSFs. The study further shows an interesting pattern, namely that companies either Aget it rightB, and essentially succeed on all CSFs, or Aget it completely wrongB, that is, fall sh...

An ESI-MS-based methodology allows for a rapid assay of ATRP catalyst performance without prior polymerization experiments.

Cyanine borate (R(Ph)3B-; R alkyl) salts dissolved in non-polar solvents exist predominantly as ion pairs. Irradiation of the ion pair with visible light absorbed by the cyanine leads to formation of a locally excited singlet state of the dye. The singlet excited cyanine in the ion pair is capable of oxidizing the borate anion to the boranyl radical (R(Ph)3B.) The rate constant for this electro...

Overcoming the challenge of metal contamination in traditional ATRP systems, a metal-free ATRP process, mediated by light and catalyzed by an organic-based photoredox catalyst, is reported. Polymerization of vinyl monomers are efficiently activated and deactivated with light leading to excellent control over the molecular weight, polydispersity, and chain ends of the resulting polymers. Signifi...

Determine the level of physical activity middle school students. Research organization. The contingent subjects was made up 5th-7th grade students secondary schools Lviv № 20, 50, 62. At time testing, they were 10-12 years old. A total 86 schoolchildren took part in study, including 46 boys and 40 girls. results. According to results pedometry, we observe that number steps per day is higher for...

Magnetic NPs grafted via mechano-ATRP served as a powerful agent for enhancing performance and stability of magnetorheological suspensions.

An unusual synergistic effect between 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6) and dimethyl sulfoxide (DMSO) mixtures is reported for the supplemental activator and reducing agent atom transfer radical polymerization (SARA ATRP) of methyl acrylate (MA) using a catalytic system composed by sodium dithionate (Na2S2O4) and CuBr2/Me6TREN (Me6TREN: tris[2-(dimethylamino)ethyl]amine...