Cationic polymerization of 3,6-dibromo-9-(2,3-epoxypropyl)carbazole with triphenylcarbenium salts (triphenylcarbenium hexachloroantimonate, triphenylcarbenium tetrafluoroborate and triphenylcarbenium pentachlorostannate ) has been studied by a microcalorimetric technique. Acceleration of polymer...

One of the problems of percutaneous vertebroplasty attributed to the use of acrylic cements is related to the radiopacity of the formulation. The use of bismuth salicylate as the radiopaque agent is proposed in this work, taking into account the high radiopacity of organobismuth compounds used i...

Helicobacter pylori urease is involved in several physiologic responses such as stomach and duodenal ulcers, adenocarcinomas and stomach lymphomas. Thus, inhibition of urease is taken for a good chance to treat H. pylori-caused infections, we have therefore focused our efforts on seeking novel u...

Exploring a simple method to prepare efficient photocatalyst is a very important technique for practical application. Herein, α-Bi2O3, β-Bi2O3 and C/Bi/α-Bi2O3 were easily obtained by calcining bismuth citrate under different conditions. Especially, C/Bi/α-Bi2O3 obtained at 450 °C in nitrog...

In this work, the ternary complex formation between vanadium(III), salicylic acid (H2Sal) as primary ligand and the amino acids glycine, α-alanine, β-alanine, proline, serine, threonine, methionine and phenylalanine (HL) as secondary ligands, in aqueous solution at 25 °C using 3.0 mol·dm− 3 ...

In the course of the Fukushima Daiichi nuclear accident (March 2011), large quantities of radionuclides, mainly of the volatile elements such as cesium and iodine were released to the environment. In small amounts non-volatile elements such as plutonium and uranium have also been released. For t...

The ab initio and DFT calculations predict that two rotamers, cis and trans m-aminostyrene, are stable for each of the S0, S1 and D0 states. In the one-color resonant two-photon ionization (1C-R2PI) spectra, the band origins of the S1 ← S0 electronic transitions (00 band) of cis and trans m-ami...

The aim of this investigation is recycling, reusability and stability of the KCC-1 as a suport's catalyst. KCC-1 and its functionalized derivatives of aminopropyltriethoxysilane and tripolyphosphate (ATPP) have been synthesized, and applied to one-pot synthesis of 3-Acyloxylindolines for fi...

The selective hydrogenation of a molecule containing several unsaturated groups is a very important issue and has attracted much more attention in the chemical synthesis. Herein, a highly selective catalyst of Pt-Bi/TiO2 was first time developed for the hydrogenation of 3-nitrostyrene (NS) to 3-...

The current work describes the physico-chemical studies of two dosimetry systems. Aqueous solution of 1, 5 diphenyl carbazone (DPC) incorporating with chromium (III) to form a colored azo dye metal complex in two methods liquid and gel. Under the effect of γ-irradiation, the colored complex und...

We revealed the effect of the prolonged UV laser irradiation on luminescent behavior of photonic materials based on mesogenic lanthanide(III) β-diketonate complexes by using a novel 3 μm vitrified film of an europium(III) β-diketonate complex. We used the Eu3+ ions to monitor the UV laser-ind...

Kovacs's volume-recovery data (PVAc; 40°C) can be described by the phenomenological volume-recovery theory within experimental error (±2 × 10−5). The non-ideal character of the actual temperature jumps has a considerable effect on volume recovery, even in heating tests. Bounds and correc...

SummaryAll 33 investigated strains of Proteus penneri gave a green colour reaction with Kovacs' indole reagent after an incubation of about three days at 36°C. Furthermore, 26% of the 51 strains of Proteus mirabilis studied also showed the green colour reaction but somewhat more weakly. Th...

Dehydrins (DHNs) have been reported to act as chaperones to combat drought stress. While in this study, we explored a novel nuclear complex of Oryza sativa FKBP and YSK2-type dehydrin (OsDhn-Rab16D), associated with ABA signaling to impart drought stress tolerance. The transcript levels of OsDhn...

The physical aging of the poly(methyl methacrylate) glass (PMMA) is described by its effects on the refractive index, that reflects the change of mean specific volume, and, on the other hand, on the low-frequency Raman scattering, i.e., on the boson peak. The boson peak depends mainly on the coh...

A novel monosubstituted dipicolinic acid hydrazide derivative (H2L = 6-{[2-(phenylcarbonyl)hydrazino]carbonyl}pyridine-2-carboxylic acid) was prepared by the multi-step synthesis route starting from methoxy-substituted pyridine-2,6-dicarboxylic acid. Reaction of the prepared compound with Co and...

The Kovacs is a release and regrasp skill performed on the horizontal bar in men׳s artistic gymnastics. It is a popular skill in elite competitive gymnastics with over 40% of male gymnasts performing a variation of the Kovacs at the London 2012 Olympics. In the qualifying competition 84% of Kova...

Regioselective deprotonation of N-methyl- and tert-butylpyridine carboxamides using lithium magnesiates bases was achieved at room temperature avoiding nucleophilic addition on the pyridine molecule and auto-condensation of the arylmetal intermediates on the amide group was described. The hydrog...

Three new xanthones, named kaennacowanols A–C (1–3), along with nineteen known xanthones were isolated from the roots of Garcinia cowa Roxb. Their structures were determined by spectroscopic analysis. All isolated compounds were evaluated for their cytotoxicity against KB and HeLa cell lines. ...

The standard-of-care treatment for metastatic prostate cancer (PCa) is androgen deprivation therapy (ADT). Nevertheless, most tumors eventually relapse and develop into lethal castration-resistant prostate cancer (CRPC). Docetaxel is a FDA-approved agent for the treatment of CRPC; however, the t...