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Imeni Vladimira Il'icha Lenina, Russia

Tran T.H.,Nurnberg University of Applied Sciences | Lezhnina M.M.,Nurnberg University of Applied Sciences | Lezhnina M.M.,Mari State University | Kynast U.,Nurnberg University of Applied Sciences
Journal of Materials Chemistry | Year: 2011

Salicylate complexes of terbium have been modified by co-coordination with trioctylphosphine oxide, by which the complexes can be rendered soluble even in non-polar matrices. Highly transparent, green emitting composites based on rare ions can thus be obtained now by the incorporation of these complexes into silicone matrices, which has in the past been reserved for green emitting organic dyes. The optical properties of the novel hybrid systems have been characterised, showing efficient luminescence of the Tb3+ ions with emission quantum yields of up to 68%. © 2011 The Royal Society of Chemistry. Source


Silant'ev A.V.,Mari State University
Russian Physics Journal | Year: 2013

A short description, analysis, and comparison of four different methods used for calculation of the Green's functions for the Hubbard model in the approximation of static fluctuations are presented. The Green's functions in the approximation of static fluctuations are calculated for fullerene S{cyrillic}60, and three main optical S{cyrillic}60 absorption bands are interpreted. © 2013 Springer Science+Business Media New York. Source


The article analyzes the norms of the European Charter of the Local self - government from the position of securing the core principle of the local government - publicity. Athough, this principle, is not directly covered by the European Charter, but some of its elements are found in numerous articles. The author presents comparative characteristics of the basic rules of the European legal act with the basic federal law on local government. The obvious advantages of the European Charter of local government are marked, in particular, the consistent legal regulation of the interests of the population in the work of local government. Source


Murzashev A.I.,Mari State University
Russian Physics Journal | Year: 2012

The energy spectrum of fullerene S{cyrillic} 70 is calculated for the Hubbard model. Based on the spectrum obtained, the optical absorption spectrum is calculated. The optical absorption spectrum so obtained coincides well with the experimental one. The absorption bands at 1.88, 2.65, 3.29, 3.47, and 3.77 eV are observed in it. All these bands are formed by purely electron transitions. © 2012 Springer Science+Business Media New York. Source


Artamonova S.D.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | Sharnina F.F.,Mari State University
Applied Biochemistry and Microbiology | Year: 2013

The peculiarities of the acidic hydrolysis of chitin-glucan complexes (ChGCs) of higher fungi were studied, and the technology for the isolation and purification of D-(+)-glucosamine hydrochloride of high purity from hydrolysate was developed. The composition, properties, and purity of the product were analyzed by a combination of physicochemical methods. The yield of the final product was 20-60%, depending on the chitin content in ChGC samples. The obtained amino sugar was a white crystalline odorless powder readily soluble in water, slightly soluble in 95% ethanol, and insoluble in chloroform and other organic solvents, and on the basic parameters corresponded to the standard D-(+)-glucosamine hydrochloride. © 2013 Pleiades Publishing, Ltd. Source

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