Issues in Attribution and Expert Assessment of the Decorative Porcelain Objects

This paper explores the main issues in professional attribution and methodology for the expert assessment of decorative porcelain works. Expert assessment of such works consists of a range of examinations, including studies of technological peculiarities, marking of items, stylistic, heraldic and epigraphic analysis. The history of Russian porcelain is heavily influenced by various trends in European art, as well as events in Russian history. In each stage of development of locally produced porcelain, marks on the items were used in different way and presented a different range of information. Interpretation of these marks provides an important source of attribution and establishment of provenance and, therefore, is of vital importance for any professional working with Russian porcelain. This article provides information on the porcelain markings from the establishment of first porcelain factories in eighteenth-century Russia during the imperial period, before discussing markings on Soviet porcelain and, finally, giving examples of contemporary marks used by modern Russian factories

Quality of life as the basis for achieving social welfare of the population

The paper discusses the concept and features of life quality as a socio-economic category. The main signs of quality of life of the population are shown. The analysis of different methodologies to measure indicators of life quality is given. It is shown that the most authoritative measure of the quality of life in the world is the “Human Development Index” (HDI). The main task of authorities at different levels to improve the quality of life of the population is described

Discrimination problems of retirement age employees

It is shown that there is an increasing number of people of retirement age; however, they fac

Competitiveness indicators of catering business entities : the case of Russia

Purpose: The article analyzes the existing marketing strategies in catering and define their influence on the competitiveness level of catering business entities in Russia. Design/Methodology/Approach: This article is dedicated to generalizing papers on the problems of catering marketing strategy formation. The object of the research is marketing strategies in catering and their influence on the competitiveness level of the entities. Findings: The novelty of the research is an algorithm of evaluation of the competitiveness level and marketing strategy adjustment of operating catering business entities based on the analysis of their major performance indicators. The algorithm with its system of certain indicators allows defining the competitiveness level, selecting and adjusting marketing strategies and sub-strategies, and, thus, enhancing the effectiveness of catering business entity performance. Practical implications: Flexibility and adaptiveness of this system entails that any catering business entity can select priority indicators from it and then calculate them to adjust marketing strategies and sub-strategies based on data obtained in the meantime. Originality/Value: The value lies in the disclosure of industry specifics of strategic marketing management in a definite economic activity considering essential strategic and operational factors which determine ultimate economic effectiveness of target marketing exposures.peer-reviewe

Intricacies of the Co3+^{3+} spin state in Sr2_2Co0.5_{0.5}Ir0.5_{0.5}O4_4: an x-ray absorption and magnetic circular dichroism study

We report on a combined soft x-ray absorption and magnetic circular dichroism (XMCD) study at the Co-$L_{3,2}$ on the hybrid 3$d$/5$d$ solid state oxide Sr$_2$Co$_{0.5}$Ir$_{0.5}$O$_4$ with the K$_2$NiF$_4$ structure. Our data indicate unambiguously a pure high spin state $(S=2)$ for the Co$^{3+}$ (3$d^6$) ions with a significant unquenched orbital moment $L_z/2S_z=0.25$ despite the sizeable elongation of the CoO$_6$ octahedra. Using quantitative model calculations based on parameters consistent with our spectra, we have investigated the stability of this high spin state with respect to the competing low spin and intermediate spin states.Comment: 7 pages, 4 figure

Legal Regulation of Crimes Threatening Global Security

The authors consider methods of legal regulation of crimes and types of international cooperation in the fight against them. The paper also highlights international measures aimed at implementing antiterrorist cooperation and combating illegal drug trafficking. The main goal is to determine the legal mechanisms for the prevention of these socially dangerous phenomena both at the local and interstate levels. The object of the research is the social relations that develop in connection with and about the peculiarities of crimes that infringe on international security. The subject of the research is the norms of modern Russian criminal law and the norms of international law. The scientific works of the authors listed in the references represent a solid theoretical and methodological basis for this research. However, research into the features of crimes should continue, since not all problematic issues in this area have been resolved. The author examines the concept, content and general features of international crimes that infringe on international security; defines the role of the UN (United Nations) and other organizations engaged in international legal regulation in the fight against international crimes; defines the features of the interstate organizations activities to prevent terrorism and illicit trafficking in narcotic and psychotropic substances. It is concluded that terrorism and illicit drug trafficking are most widespread among international crimes. The authors draw conclusions on the need to perform preventive activities aimed at preventing the Commission of international crimes, as well as on the implementation of a direct fight against such crimes through «detection, prevention, suppression, disclosure and investigation». Summarizing the authors’ points of view on the subject of criminal liability for acts of terrorism and drug trafficking, it should be noted that restraint measures, as well as strengthening responsibility measures, should be preceded by a set of preventive measures. It should also be understood that the effectiveness of anti-terrorist and anti-drug policies in the world, including in terms of the regulation of criminal liability measures, should be supported and approved by the population. To improve the legal structures of crimes that infringe on international security in the countries of the world community, it is necessary to positively perceive the international experience of various states in regulating measures of criminal responsibility and countering the spread of these acts

Low-temperature magnetostriction and distortions in the rare-earth Laves phases

The effects of partial substitution of dysprosium in Tb0.2Dy0.8Co2 by terbium and gadolinium on the structure and magnetic properties have been studied. Two compositions, Tb0.3Dy0.7Co2 and Tb0.2Dy0.7Gd0.1Co2 have been synthesized. Their crystal structure, in contrast to the structure of the original compound, has both tetragonal distortions and rhombohedral distortions at lower temperatures. Anomalies of magnetostriction and magnetocaloric effect near the observed magnetic phase transitions have been studied. The sign-alternating temperature dependences of the longitudinal and transverse magnetostrictions associated with various types of crystal structure distortions of the alloys are revealed

Magnetic phase diagram and possible Kitaev-like behavior of honeycomb-lattice antimonate Na3Co2SbO6

Recent theoretical studies have suggested that Kitaev physics and such effects as formation of a mysterious spin-liquid state can be expected not only in RuCl3 and iridates, but also in conventional $3d$ transition metal compounds. Using DC and AC magnetometry, thermodynamic and $^{23}$Na nuclear magnetic resonance measurements (NMR) we studied such a candidate material Na3Co2SbO6 . A full phase diagram of Na3Co2SbO6 in a wide range of magnetic fields and temperatures is presented. The results demonstrate transformation of the magnetic structure realized at low-temperature and suppression of the AFM order under the external field, the gradual development of the saturation phase, as well as evidence of gapped spin-liquid-like behavior in certain parts of the phase diagram

Extraction processing of concentrated solutions of uranyl nitrate with high impurities content

Process flowsheet of recycling uranium concentrated solutions with its purification from insoluble impurities of iron, silicon, molybdenum, calcium oxides and hydroxides and soluble impurities with application of centrifugal extractors cascade has been developed and suggested for commercial introduction. The process was carried out at extractant saturation (30 % tributyl phosphate in hydrocarbon diluent) in extraction assembly lower than a limiting level (85...95 g/l) and in wash assembly - at limiting saturation (up to 120 g/l). As a result the waste uranium content in water-tail solutions 0,01...0,04 g/l and minimal content of impurities in re-extractors is provide

Asymmetric Faraday Effect in a Magnetophotonic Crystal

It is widely known that the magneto-optical Faraday effect is linear in magnetization and therefore the Faraday angles for the states with opposite magnetizations are of opposite sign but equal in modulus. Here we experimentally study propagation of light through a one-dimensional all-garnet magnetophotonic crystal to demonstrate an asymmetric Faraday effect (AFE) for which Faraday angles for opposite magnetic states differ not only in sign but in the absolute value as well. AFE appears in the vicinity of the cavity resonance for an oblique incidence of light which plane of polarization is inclined to the incidence plane. Under proper incidence and polarization angles the magnitude of AFE could be very large reaching 30% of the absolute value of the Faraday effect. The effect originates from the difference in Q-factors for p- and s- polarized cavity modes that breaks the symmetry between the two opposite directions of polarization rotation. The discovered AFE is of prime importance for nanoscale magnonics and optomagnetism.Comment: Supplementary information provided after the main tex