The concentrations of 18 carbonyl compounds and their health risks for people were investigated in indoor and outdoor air of three different rooms of a library in Guangzhou, South China. Indoor air samples were collected during normal activities of staff and students, and carbonyl compounds were analyzed by high-performance liquid chromatography. The results show that the total concentrations o...

Two forms of microsomal carbonyl reductase, solubilized in Triton X-100, were purified to homogeneity from the liver of male guinea pigs, primarily by affinity, DEAE-Sephacel, gel-filtration and hydroxyapatite chromatography. The major form was a tetrameric glycoprotein of single subunits of Mr 32000 and a pI value of 7.0; another minor form was a monomeric protein with Mr 34000 and a pI value ...

Carbonyl sulfide (COS) is one of the major sources of stratospheric sulfate aerosols, which affect the global radiation balance and ozone depletion. COS-degrading microorganisms are ubiquitous in soil and important for the global flux of COS. We examined the sulfur isotopic fractionation during the enzymatic degradation of COS by carbonyl sulfide hydrolase (COSase) from Thiobacillus thioparus T...

Curing of the composite in a constant magnetic field low intensity (Н∼104 A/m) leads to anisotropic spatial distribution filler particles - carbonyl nickel powder. Thermal diffusivity with orthotropic structure was measured using "pulsed heat source" method. Increase thermal value found direction axis.

The selectivity filter of K+ channels provides specific coordinative interactions between dipolar carbonyl ligands, water, and the permeant cation, which allow for selective flow of K+ over (most importantly) Na+ across the cell membrane. Although a structural viewpoint attributes K+ selectivity to coordination geometry provided by the filter, recent molecular dynamics simulation studies attrib...

Protein carbonyl (PC) and malonaldehyde (MA) contents and protein extractability (PE) in yellowtail meat containing NaCl stored at -20 degrees C for 20 weeks were analyzed. Although the PC and MA contents increased in all samples, the PE value decreased in the samples containing NaCl. After 20 weeks of storage, the protein (approximately 97.4 kDa) disappeared in the samples containing NaCl.

volta metric behavior of mesotrione using silver/amalgam electrode we examined in this paper.mesotrione belongs to the triketone group of herbicides. it is used against weeds in corn and operates byinhibition of 4-hydroxyphenyl piruvate in plants. there is little information about mesotrione as its presencein the market is short. for its wider application in the future, it is important to know ...

Abstract Background: Recent studies have suggested that oxidative stress (OS) may have a contribution in the pathogenesis of endometriosis. However, the results of previous studies regarding OS in endometriosis are controversial. The objective of this study was to compare the serum levels of OS markers in endometriosis versus the control group. Methods: This case-control study was carried out...