Low-temperature synthesis under low oxygen pressure and thermodynamic properties of YbFe2O4–δ

Received: 27.11.2017. Accepted: 26.03.2018. Published: 10.05.2018.The mixed-valence compound YbFe2O4–δ was synthesized using a modified method that allows employing gaseous atmosphere with a controlled ratio of inert gas and oxygen. The stability range for YbFe2O4–δ was determined at 1090 °C under reducing conditions. Thermodynamic characteristics for the formation of YbFe2O4–δ from the simple oxides and from elements in the temperature range 700–910 °C have been calculated. The obtained results allow specifying the low-temperature part of P-T-X diagram for the Yb-Fe-O system.The study was done in accordance with the state quota for IMET UB RAS, theme No. 0396-2015-0075, using equipment of CCU “Ural-M”

Introduction of Smart Working in the Enterprises of Russia and Italy: Case Study

The article focuses on the issues of transformation of labour relations between employers and employees of Russian and Italian enterprises due to the processes of digitization which determine the possibility of introducing new technologies in the organization of labour. One of the objectives of the research presented in the article is to analyse the advantages and shortcomings of the new management philosophy, to assess the impact of its introduction into the organization of work on the employee well-being and the level of social pollution in the sphere of labour relations. The case study method was used in the framework of an integrated approach, and was supplemented with an analysis of the narratives of Italian and Russian employees of enterprises operating in the information services industry. A comparative analysis of the empirical data obtained by the authors revealed the similarities and differences in the conditions and processes related to the introduction of the smart working technology into the organization of labour. The authors identified the attitude of the smart personnel in both countries to the new managerial philosophy, as well as the factors adversely affecting the quality of their working life. The scientific contribution of the research is the study and evaluation of one of the emerging phenomena of the new labour economy, which is developing in 4.0 industry and leads to the emergence of new forms of labour relations. © 2020 IOP Publishing Ltd. All rights reserved.Russian Foundation for Basic Research, RFBR: 19-010-00705This work was supported by Act 211 Government of the Russian Federation, contract № 02.A03.21.0006; Russian Foundation for Basic Research (RFBR) under Grant № 19-010-00705. Development of tools for assessing the impact of social pollution of labour relations on the employees' well-being in a digital economy‘

Gastroesophageal reflux disease associated with diseases of the respiratory tract

The European community of gastroenterologists in 1997 recognized GERB as "illness of the 21st century". Diseases of a respiratory tract take the leading place among all extra esophageal implications of a gastroesophageal reflux disease. Among them bronchial asthma and a chronic obstructive pulmonary disease are the most widespread. The study of the features of the current and modern methods of diagnosing bronchial asthma, obstructive sleep apnea syndrome and chronic obstructive pulmonary disease associated with gastroesophageal reflux disease is of great importance for identifying potential obstacles to effective treatment and preventing an increase in the risk of hospitalizations of patients with this co-morbid pathology. The morbidity of the pathology of the respiratory tract, combined with gastroesophageal reflux disease, is steadily growing. There is a large number of publications concerning the relationship between gastroesophageal reflux disease and diseases of the bronchopulmonary system, but the etiopathogenesis and the cause-and-effect relationship of these diseases remain in question. 1t is interesting to note that the syndrome of obstructive sleep apnea is not included in the list of extra-oesophageal manifestations, both probably and reliably associated with gastroesophageal reflux disease (according to the Montreal Consensus, 2006), but is of great interest to researchers in recent years

Non-conservative Evolution of Cataclysmic Variables

We suggest a new mechanism to account for the loss of angular momentum in binaries with non-conservative mass exchange. It is shown that in some cases the loss of matter can result in increase of the orbital angular momentum of a binary. If included into consideration in evolutionary calculations, this mechanism appreciably extends the range of mass ratios of components for which mass exchange in binaries is stable. It becomes possible to explain the existence of some observed cataclysmic binaries with high donor/accretor mass ratio, which was prohibited in conservative evolution models.Comment: LaTeX, 32 pages, to be published in Astron. Z

The role of non-commercial cyprinids in maintenance and spread of the opisthorchiasis focus in the middle Ob River basin (Tomsk region, Russia)

The study assessed the role of non-commercial cyprinid species in maintaining the opisthorchiasis focus in the middle Ob River basin, Tomsk region, Russia. The source of O. felineus infection for humans and carnivores is fish of the family Cyprinidae. This is the most numerous family, 14 species live in the middle Ob River basin, which includes 6 commercial species and 8 non-commercial species. This study aimed to investigate the current situation on infestation of non-commercial cyprinids with O. felineus metacercariae and their role in maintaining and spreading the natural focus of opisthorchiasis in the middle Ob River basin. We investigated 4 non-commercial species (tench, sunbleak, common bleak, gudgeon), which are highly abundant in water bodies. Tench, common bleak and gudgeon are objects of amateur fishing. These species are traditionally included in the diet of the local population. Opisthorchis felineus metacercariae were recorded in muscles of all the examined fish species. The identification of metacercariae was confirmed by morphological methods and PCR diagnostics. Tench and sunbleak are the main sources of opisthorchiasis infection in the floodplain lakes of the Ob River basin (the prevalence of tench infection is 89.3% and mean intensity of infection is 11.2 metacercariae per fish, the prevalence of sunbleak infection is 50.9% and the intensity of infection is 4.25 metacercariae per fish). The prevalence of infection in the introduced common bleak from the rivers of the middle Ob River basin is rapidly increasing from 2.4 (2016-2018) to 37.5% (2020-2021), and mean intensity of infection increased from 1 to 4.15. The epizootic state of water bodies in the middle Ob River basin remains unfavorable in relation to opisthorchiasis. Tench, common bleak and sunbleak, along with ide and dace, are the main source of infection for humans and animals, which is evidenced by high infection with Opisthorchis felineus metacercariae in these numerous fish species. They pose the greatest danger of infection of people and animals with opisthorchiasis. These species should be included in the campaign to avoid raw and poorly cooked fish in the diet. In addition, such species as roach, bream and sunbleak also pose the danger of infection with opisthorchiasis, but to a lesser extent