Defect Electron States in Carbon Nanotubes and Graphite from the NEXAFS Spectroscopy Data

Experimental results of studying the electronic structure of single walled and multi walled carbon nanotubes as well as graphite by X ray absorption spectroscopy or NEXAFS spectroscopy are presented. The C1s absorption spectra are measured with high energy resolution using the equipment of the Russian German beamline of the BESSY electron storage ring. Features found in absorption spectra of carbon nanotubes and graphite for the first time are interpreted in the case of carbon nanotubes as the contribution of electron states appearing due to the imperfection of their structure both under the nonequilibrium synthesis conditions and during the subsequent producing manipulation

Specific features of the structure of detonation nanodiamonds from results of electron microscopy investigations

The experimental results of a comprehensive investigation of the structure of detonation synthesis nanodiamonds by electron microscopy methods have been presented. The morphology of diamond nanoparticles has been investigated and the microdiffraction patterns have been analyzed. The method of characteristic fast electron energy loss spectroscopy in transmission electron microscopy has been used. The local density of structural components of a nanodiamond diamond core and fullerene like shell has been obtained.The shape of the shell surrounding the nanocrystal has been determined using model calculations. A hypothesis explaining the charging of the nanodiamond surface has been propose

The use of diuretics in chronic heart failure. Position paper of the Russian Heart Failure Society [Экспертное мнение по применению диуретиков при хронической сердечной недостаточности Общество специалистов по сердечной недостаточности]

The document focuses on key issues of diuretic therapy in CHF from the standpoint of current views on the pathogenesis of edema syndrome, its diagnosis, and characteristics of using diuretics in various clinical situations