We study opinion oscillation of the nonconsensus opinion model (NCO) on graphs, and in particular on bipartite graphs. Using intensive numerical simulations, we investigate the relationship between amplitude A (the percentage of nodes whose opinions oscillate) and (p,q), which are the initial co...

In spite of the rapid developments in communication technologies over the past few decades, which include attractive features offered by the presently used 3G/4G systems, it continues to be a challenge to render adequate services with the exponential rise in the number of users and applications....

Measurement-based optimization schemes can be used to counteract the effect of uncertainty and to drive the process to optimality. Necessary Conditions of Optimality Tracking (NCO-tracking) is a promising scheme which uses the process measurements to update the inputs directly. The limiting assu...

The effect of a disordered ZnAl2O4 spinel structure on glycerol carbonylation with urea was investigated with pure ZnAl2O4 (c-ZnAl2O4) and ZnAl mixed oxide (c-ZnAlO) prepared by a citrate complex method, and ZnAl physically-mixed oxide (p-ZnAlO). During catalysts preparation, a disordered bulk Z...

Poly(ethylene oxide) (PEO) forms with CuCl2 a complex in acetonitrile (AN) solution as well as in solid phase (after evaporation of solvent). During u.v. or visible light irradiation it has been observed that a rapid photo-oxidative degradation of the PEO-CuCl2 complex in AN is caused by free Cl...

Alternating block copolymers of aromatic poly(ether sulphone) (PSU) and poly(dimethylsiloxane) (PDMS) were prepared via Pt-catalysed hydrosilylation of α,Ω-di(vinylbenzyl)PSU or α,Ω-di(allylether)PSU with α,Ω-di(silane)PDMS. The vinyl functionalized PSUs were prepared by Williamson phase t...

Poly(γ-benzyl-d-l-glutamate) with strict alternation of l and d residues is found to exist, in addition to the αDL and πDL4.4 helical structures already described (Heitz et al., 1975a), in four more helical structures. Models based on double helices made of antiparallel strands are proposed f...

The effect of 3′-exoribonucleases on the polyadenylation of mRNA in Escherichia coli was studied by comparing the synthesis and levels of poly(A) RNA in wild-type E coli and mutant strains defective in the two major 3′-exoribonucleases: polynucleotide phosphorylase and ribonuclease II. Mutatio...

Thermally crosslinkable oligomers of aromatic poly(ether sulphone) (PSU) with incorporated poly(dimethylsiloxane) (PDMS) segments were produced via Pt-catalysed hydrosilylation of α,ω-di(silane)PDMS with α,ω-di(vinylbenzyl)PSU. A 21 molar ratio of PSU to PDMS was used to obtain statistically...

The combustion characteristics of four commonly encountered plastics: poly(styrene), PVC, poly(ethylene) and poly(propylene) were studied under conditions pertinent to incinerators, that is, high heating rates (in the order of 10,000 K/s) and elevated gas temperatures (1200–1500 K). Batches of ...

A rotatable central composite design (RCCD) was applied to optimize the preparation of cyclosporine-loaded poly D,L (lactide-glycolide) (PLAGA) nanoparticles (NP) and microspheres (MS) by solvent displacement and solvent evaporation techniques, respectively. The joint influence of needle gauge, ...

Most of traditional linear poly(ethylene terephthalate) (PET) resins of relatively low molecular mass and narrow molecular mass distribution have low melt strength at foaming temperatures, which are not enough to support and keep cells. An in-situ polymerization-modification process with esterif...

Here in, a high sensitive electrochemical aptasensor for the determination of tetracycline has been developed using of MWCNTs and electropolymerized poly (L-glutamic acid) as a suitable platform for immobilization of anti-TET aptamer. Electropolymerization of biocompatible polymer was performed ...

Monosized macroporous poly(glycidyl methacrylate) (PGMA) microspheres that were 9.3 μm in size were synthesized by multistep swelling polymerization using a modified Ugelstad technique. The PGMA microspheres and their hydrolyzed analogs derived from poly(2,3-dihydroxypropyl methacrylate) (PDHPM...

Solid state ball milling was used in guanidinylation reactions of aromatic amines with N,N′-Di-Boc-1H-pyrazole-1-carboxamidine reagent. Reaction conditions are advantageous, and in general reactions proceed in significantly shorter reaction times and in higher yields than under the conventional...

A series of thiophene-2-carboxylic acids and thiophene-3-carboxylic acids were identified as a new class of DAO inhibitors. Structure-activity relationship (SAR) studies revealed that small substituents are well-tolerated on the thiophene ring of both the 2-carboxylic acid and 3-carboxylic acid ...

A set of CB2R ligands, based on the thiophene scaffold, was synthesized and evaluated in in vitro assays. Compounds 8c-i, k, l, bearing the 3-carboxylate and 2-(adamantan-1-yl)carboxamido groups together with apolar alkyl/aryl substituents at 5-position or at 4- and 5-positions of the thiophene ...

Publisher SummaryEndothelin (ET) was originally identified as a vasoactive peptide synthesized in vascular endothelial cells and Atrial Natriuretic Peptide (ANP) as a hormone produced and released by the heart. Both ET and ANP were later found in mammalian brain as part of more complex systems w...

The central natriuretic peptide system is composed of at least three structurally homologous and uniquely distributed peptides and receptors which are thought to be involved in the central regulation of cardiovascular and autonomic function and more recently been shown to affect cellular growth ...

Application of recombinant DNA technology to the study of atrial natriuretic factor (ANF) has significantly increased our understanding of the biochemistry and physiology of this cardiac hormone. Molecular characterization of the ANF gene and mRNA has yielded structural details about this peptid...