The reaction of the atmosphere to solar disturbances

The effect of solar flares on the thermosphere and the troposphere is investigated. It is found that during periods of geoeffect solar disturbances, there is a connection between phenomena in the upper and lower atmospheres and that variations in atmospheric parameters correlate with changes in the geomagnetic index

Factors of Trade and Economic and Social and Humanitarian Cooperation in Development of Integration within EEU

The article examines some aspects of trade and economic cooperation in the Eurasian space in the context of the social and humanitarian spheres. The author draws attention to the need to create effective conditions for involvement in the decision-making processes of the business community of the EAEC countries. In addition, the study focuses on the need to raise awareness in the countries participating in integration education on the implemented policy and the corresponding opportunities in the field of trade, economic and socio-humanitarian cooperation

Carbon coated Nickel Nanoparticles in Polyacrylamide Ferrogels: Interaction with Polymeric Network and Impact on Swelling

Polyacrylamide ferrogels with embedded magnetic nanoparticles of metallic nickel (Ni) and nanoparticles of nickel coated with a carbon shell (Ni@C) were synthesized by radical polymerization in water. The effect of the carbon shell on the interaction of Ni and Ni@C nanoparticles with polyacrylamide matrix and on swelling ratio of the ferrogels has been studied. The deposition of carbon on the surface of Ni nanoparticles worsens their interaction with polyacrylamide but at the same time elevates the water uptake by ferrogels

Fostering Eurasian Integration: The Role of Business in Services and Trade Policy Cooperation Development

The research paper examines some aspects of trade and economic cooperation in the Eurasian Union in services and trade policy. The authors consider key challenges and difficulties affecting prospects of sustainable Eurasian integration. The article stresses the need to harmonize and unite efforts of the Eurasian state bodies and businesses in order to increase the integration policies efficiency in a new environment based on reasonable application of national experience and expertise

Revisiting Issues Relating to the Content of Ownership Rights, as Exemplified By the Legislation of Russia and other Countries

Given article takes into consideration the approaches to the disclosure of the ownership rights content existing in different legal systems. The idea of disclosing the ownership rights content through a specific set of owner’s powers exists in the legal systems of various countries. In this case, the number of legal powers may differ, as well as an understanding of each of them. The triad of owner’s powers (possession, use, disposal), enshrined in the laws of Russia and a number of other countries, is analyzed in details. The views regarding the construction of a theoretical model of the content of ownership rights were expressed

Ferrogels based on commertial microparticles of magnetite or strontium ferrite

This work was supported by Russian Science Foundation grant 18-19-00090

North-south asymmetry of geomagnetic and tropospheric events

The influences of the solar plasma on geomagnetic and atmospheric phenomena are considered. There are the north-south asymmetry in the reaction of the geomagnetic field, of the geopotential and of the pressure in the magnetically conjugate points relative to the direction of the interplanetary magnetic field. There are the synchronism between direction of the meridinal component of wind at the level of the tropopause and the direction of the interplanetary magnetic field. © 1974

Influence of uniform magnetic field on elastic modulus in polyacrylamide ferrogels with embedded nickel nanoparticles

Polyacrylamide ferrogels with embedded nickel magnetic nanoparticles were synthesized by radical polymerization in water. The elastic modulus of ferrogels was measured under unidirectional compression in a uniform magnetic field with a strength of 0, 165, 220 and 275 Oe. With an increase in the content of nickel particles in ferrogel from 0 to 5.3% by weight, the elastic modulus in zero magnetic field increased by 60%. The application of magnetic field parallel to the direction of compression resulted in the increase of modulus, and if the field was applied perpendicular to the compression, the modulus tends to decrease. Such trends are in good agreement with the features of magnetostriction of a non-compressible uniformly magnetized sphere in a constant magnetic field. © Published under licence by IOP Publishing Ltd.Russian Science Foundation, RSF: 18-19-00090The study was performed under the financial support of Russian Science Foundation grant 18-19-00090

Revisiting issues relating to the content of ownership rights, as exemplified by the legislation of Russia and other countries

Given article takes into consideration the approaches to the disclosure of the ownership rights content existing in different legal systems. The idea of disclosing the ownership rights content through a specific set of owner’s powers exists in the legal systems of various countries. In this case, the number of legal powers may differ, as well as an understanding of each of them. The triad of owner’s powers (possession, use, disposal), enshrined in the laws of Russia and a number of other countries, is analyzed in details. The views regarding the construction of a theoretical model of the content of ownership rights were expresse

Polyacrylamide Ferrogels with Magnetite or Strontium Hexaferrite: Next Step in the Development of Soft Biomimetic Matter for Biosensor Applications

Magnetic biosensors are an important part of biomedical applications of magnetic materials. As the living tissue is basically a " soft matter." this study addresses the development of ferrogels (FG) with micron sized magnetic particles of magnetite and strontium hexaferrite mimicking the living tissue. The basic composition of the FG comprised the polymeric network of polyacrylamide, synthesized by free radical polymerization of monomeric acrylamide (AAm) in water solution at three levels of concentration (1.1 M, 0.85 M and 0.58 M) to provide the FG with varying elasticity. To improve FG biocompatibility and to prevent the precipitation of the particles, polysaccharide thickeners-guar gum or xanthan gum were used. The content of magnetic particles in FG varied up to 5.2 wt % depending on the FG composition. The mechanical properties of FG and their deformation in a uniform magnetic field were comparatively analyzed. FG filled with strontium hexaferrite particles have larger Young's modulus value than FG filled with magnetite particles, most likely due to the specific features of the adhesion of the network's polymeric subchains on the surface of the particles. FG networks with xanthan are stronger and have higher modulus than the FG with guar. FG based on magnetite, contract in a magnetic field 0.42 T, whereas some FG based on strontium hexaferrite swell. Weak FG with the lowest concentration of AAm shows a much stronger response to a field, as the concentration of AAm governs the Young's modulus of ferrogel. A small magnetic field magnetoimpedance sensor prototype with Co68.6Fe3.9Mo3.0Si12.0B12.5 rapidly quenched amorphous ribbon based element was designed aiming to develop a sensor working with a disposable stripe sensitive element. The proposed protocol allowed measurements of the concentration dependence of magnetic particles in gels using magnetoimpedance responses in the presence of magnetite and strontium hexaferrite ferrogels with xanthan. We have discussed the importance of magnetic history for the detection process and demonstrated the importance of remnant magnetization in the case of the gels with large magnetic particles.This work was supported in part within the framework of the state task of the Ministry of Education and Science of Russia 3.6121.2017/8.9; RFBR grant 16-08-00609 and by the ACTIMAT grant of the Basque Country Government. Selected studies were made at SGIKER Common Services of UPV-EHU and URFU Common Services. We thank I.V. Beketov, A.A. Svalova, Burgoa Beitia, A. Amirabadizadeh, A. Garcia-Arribas and I. Orue for their special support