The study was conducted of the dynamics of large-scale structures of the polar region F2, due to the change of the sign of the By-component of the interplanetary magnetic field. It is shown that one of the reasons for non-stationary variations of the ionosphere structure in polar caps can be fast variations of the By-components of MMP. The time of transfer of the ionization language from morning to evening is 3000 s. This process is accompanied by the stratification of the ionization language and the formation of large-scale ionization spots that disintegrate over time.

Keywords: polar ionosphere, convection, the electron concentration, interplanetary magnetic field, the helio-geophysical conditions, ionospheric disturbances, polar cap, By - component of MMP, the F-layer

The technique of calculation of high-altitude temperature profile of electrons in the region E of the ionosphere of the Earth consided. Presented examples of the calculation of the profile of the electron temperature at altitudes of 100 - 170 km, depending on solar Zenith angle given. Discusses the problems of the heat balance of the ionospheric electrons of Earth.

Keywords: ionosphere electron temperature, concentration, heat balance, the heating rate, solar radiation, collisions of electrons, high-altitude temperature profile, probe measurements

The method of calculating the heat flow to the ionospheric electrons from photoelectrons resulting from ionization of the neutral atmospheric components by solar radiation in region E of the ionosphere of the Earth is considered . Examples of the calculation of the spectra of photoelectrons and the rate of heat influx to the electron gas at an altitude of 130 km, depending on solar Zenith angle.

Keywords: solar radiation spectra of photoelectrons, the zenith angle of the sun, the collision of electrons, the ionization potential, secondary ionization, effective absorption cross section

We consider the technique for calculating the spectra of primary photoelectrons generated by ionization of neutral components of the atmosphere by solar radiation in the area E of the Earth's ionosphere. Examples of the calculation of the photoelectron spectra at altitudes (100 - 130) km, depending on the solar zenith angle to the average level of solar activity are shown.

Keywords: solar radiation spectra of photoelectrons, the zenith angle of the sun, the collision of electrons, the ionization potential, secondary ionization, effective absorption cross section.

The experimental results of determining the sliding surface of landslides in field experiments in the North Caucasus by the method of ultra-wideband monopulse radiolocation by using GPR ""GROT-12"" were received. The prospects for the use of advanced technology for the assessment of the power of the strata that cover the surface of sliding rock mass forming the body of the landslide are discussed. It is shown that the proposed technique allows to estimate the body volume of potential natural and man-made landslides.

Keywords: radar sensing, ground penetrating radar, the landslide body, the sliding surface, the power of layers, probing depth, resolution

In the various methods of non-destructive testing, which working with the deformation fields, diagnostic accuracy is largely dependent on the intensity of structural noise caused by small-scale irregularities of building structures. In this paper we investigate the effectiveness of using a vector-scalar receiving systems for diagnostics of vibration and defectoscopy of building structures. Comparative analysis of the fluctuations of the scalar and energy flux components of the structural noise acoustic field was conducted using computer simulation. Suppression of this noise contributes to a more precise localization of defects in constructions. The study was conducted in view of the fact that the component of the stream of the acoustic field, for which the intensity of the structural noise is minimal, is measured indirectly, using two sensors: scalar and vector. It is shown that the use of energy flux component can increase the detection efficiency.

Keywords: flaw detection, structural noise, fluctuation, components of the acoustic field, energy flux

"The article explains the possibility of using polytomous models to assess personality qualities that affect the information competence of students. The input data were obtained with the help of the questionnaire ""Information competence."" The characteristics of survey participants as well as indicators of questionnaires were calculated to assess their suitability for definition of the level of formation of information competence. The recommendations for finalizing of the questionnaire were made.

Keywords: level of student latent variables, polytomous model indicator, a diagnostic test.

The article explains the possibility of using polytomous models to assess personality qualities that affect the social-legal competence of students. The input data were obtained with the help of the questionnaire ""Social-legal competence."" The characteristics of survey participants and indicators of questionnaires were calculated to assess their suitability for definition of the level of formation of social-legal competencies. The recommendations for finalizing of the questionnaire were made.

Keywords: level of student latent variables, polytomous model indicator, a diagnostic test, social-legal competence.

The article explains the possibility of using polytomous models to assess personality traits that affect  on communicative competencies of students.
Input data obtained using a questionnaire V.V. Boyko  " Communicative tolerance " have been used for calculating the characteristics of survey participants and  indicators of the test.  

Keywords: level of student latent variables, polytomous model indicator, a diagnostic test.

The algorithm, which allows to apply the Prony method to estimate of the sources parameters using vector-scalar receiving array is discussed. Noise immunity of the proposed algorithm is very high, so as the measured components of the acoustic field does not contain a noise.

Keywords: Prony algorithm, vector-scalar array, dynamic sea noise, the covariance, the flow of power