The article begins by defining e-learning as the use of technology for teaching and learning. There is a significant interest in identifying the advantages, disadvantages and challenges of using information technologies in the studying process for full-time studying, where e-learning is a component of the educational process, rather than a substitute for it. The article then turns to a practical case study of e-learning in Polotsk State University. The indicators and features of use of the G Suite for Education platform services in the educational process of Polotsk State University are analyzed.

The article analyses the interaction of a powerful low-frequency signal with an anisotropic medium over hydrocarbon deposits. The behaviour of the real and phase components of the surface impedance of the medium above the deposit in the mode of dual-frequency signals is studied. The analysis of the components of the surface impedance of the medium over hydrocarbons for electromagnetic waves with right and left circular polarizations is carried out depending on the permittivity and frequency of the probing signals. The obtained research results can be used in exploration geophysics to identify the environment above the deposits by the size and nature of the material and phase components of the surface impedance of the surface layer above the hydrocarbons.

The article considers the impact of frequency-modulated signals on an anisotropic medium over oil and gas deposits. Modeling of the components of the tensors of the dielectric constant of the medium over hydrocarbon deposits was carried out. The characteristics of the medium over accumulations of hydrocarbons for frequency-modulated signals from the frequency of the carrier oscillation, the frequency modulation index for the right and left polarizations of electromagnetic waves are studied. Methods of searching for hydrocarbons based on the variation in the characteristics of the applied signals are recommended. It is proposed to introduce new search modes to improve the accuracy of determining the boundaries of hydrocarbon deposits. The influence pattern of the dielectric constant of an anisotropic medium on the real and phase components of the tensor components are established. The research results can be applied in the electrical exploration of minerals.

The article analyzes the interaction of two-frequency electromagnetic waves with anisotropic media over hydrocarbon accumulation. The behavior of the real component έ3 of the dielectric permittivity tensor is investigated. The choice of signal characteristics is based on the use of different electromagnetic wave emission sources with amplitude and frequency ratio coefficients in the modes of powerful low-frequency and high-frequency signals. The dielectric permittivity tensor component έ3 as a function of dielectric permittivity and frequency of sounding signals was analyzed. Sounding modes of anisotropic media over hydrocarbons are recommended to identify the medium over the deposits and increase the accuracy of determining the boundaries of hydrocarbon accumulation. The obtained results of the research can be used in prospecting geophysics.

The article examines the features of the educational process in conditions of digital transformation of economy, as well as key competencies and skills that required in the digital economy. The main trends in the sphere of education are described. The experience of the Polotsk State University countries in the field of digital transformation of education is presented.