An electrochemical P450 model compound consisting of meso-tetraphenylporphyrinatochromium(3+) chloride (CrTPP), imidazole, and acetic acid was used in acetonitrile containing alkenes. The corresponding epoxides were obtained in better yields compared to a similar electrochemical P450 model compound using meso-tetraphenylporphyrinatomanganese(3+) chloride. The results of cyclic voltammetry and c...

Mikro Systems Inc. (MSI) has developed a high volume manufacturing process for producing complex, netshape, micro-to-meso scale structures from advanced materials comprised of powdered metals, ceramics, and polymers. This process, called Tomo-Lithographic-Molding (TLMTM), hinges upon a high-resolution master tool composed from lithographically micro-machined layers, precisely aligned and stack ...

2-3-dimercapto-1-propane sulfonic acid, D-penicillamine and meso-dimercapto succinic acid, drugs widely applied as antidota against metal poisoning, and cysteine and glutathione were studied with respect to their ability to generate and to scavenge superoxide anion radical. Superoxide production and scavenging were tested by means of luminol-dependent chemiluminescence. In presence of 1 mumol/l...

Concrete is a heterogeneous material consisting of mortar and aggregate at the meso scale. Evaluation of the fracture process at this scale is useful to clarify the material characteristic of concrete. The authors have conducted meso scale analysis of concrete over a past few years by Rigid Body Spring Model (RBSM). In this study, three-dimensional analyses of mortar and concrete are carried ou...

Cell-wall preparations were made from more than 140 strains of aerobic actinomycetes representing most of the form-genera that have been proposed. All cell-wall preparations contained as major constituents glucosamine, muramic acid, alanine, and glutamic acid. In addition, cell-wall preparations from various types of streptomycetes and strains of Microëllobosporia contained glycine and ll-alpha...

Self-assembly of silver triflate with L in alcohol solvent produces characteristic triple-meso helices [Ag3(L)3(ROH)](CF3SO3)3 (L = diethylbis(4-pyridyl)silane; R = Me, Et, n-Pr, and n-Bu) with six units in each turn. Their unit cell volumes are sensitive to the size of the coordinated alcohol molecules. An unusual "alcohol molecules at triple-meso helices" system is a characteristic reversible...

Decentralization of health systems has made Background sub-national/regional healthcare systems the backbone of healthcare delivery. These regions are tasked with the difficult responsibility of determining healthcare priorities and resource allocation amidst scarce resources. We aimed to review empirical literature that evaluated priority setting practice at the meso level of health systems. :...

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 The functional reconstruction of acetoin and meso-2,3-butanediol biosynthetic pathways in E. coli have been systematically explored. Pathway construction involved the in vivo screening of prospective pathway isozymes of yeast and bacterial origin. After substantial engineering of the host background to increase pyruvate availability, E. coli YY...

Entrepreneurial action is embedded within a variety of complex social structures, not all of which can be as easily defined or measured as macro-institutional or micro-individual characteristics, but collectively hold rich insights into the actual causal mechanisms influencing action. To address this problem, we call upon researchers to broaden their levels of analysis and direct their focus to...