Implementation of FGOS 3++ on the basis of the evolution-active approach

In the article unique opportunities of the evolutionary-activity approach in the system implementation of FGOS3 ++ are considered, which, on the whole, provide training for a specialistcreator in demand by innovative economyРассмотрены уникальные возможности эволюционно-деятельностного подхода в системной реализации ФГОС 3++, в целом обеспечивающие подготовку специалиста-созидателя, востребованного инновационной экономико

Oscillation of solar radio emission at coronal acoustic cut-off frequency

Recent SECCHI COR2 observations on board STEREO-A spacecraft have detected density structures at a distance of 2.5--15~R propagating with periodicity of about 90~minutes. The observations show that the density structures probably formed in the lower corona. We used the large Ukrainian radio telescope URAN-2 to observe type IV radio bursts in the frequency range of 8--32~MHz during the time interval of 08:15--11:00~UT on August 1, 2011. Radio emission in this frequency range originated at the distance of 1.5--2.5 R according to the Baumbach-Allen density model of the solar corona. Morlet wavelet analysis showed the periodicity of 80~min in radio emission intensity at all frequencies, which demonstrates that there are quasi-periodic variations of coronal density at all heights. The observed periodicity corresponds to the acoustic cut-off frequency of stratified corona at a temperature of 1~MK. We suggest that continuous perturbations of the coronal base in the form of jets/explosive events generate acoustic pulses, which propagate upwards and leave the wake behind oscillating at the coronal cut-off frequency. This wake may transform into recurrent shocks due to the density decrease with height, which leads to the observed periodicity in the radio emission. The recurrent shocks may trigger quasi-periodic magnetic reconnection in helmet streamers, where the opposite field lines merge and consequently may generate periodic density structures observed in the solar wind.Comment: 10 pages, 6 figures, accepted in A&

A Simulation Study of the Effect of Powerful High-Frequency Radio Waves on the Behavior of Super-Small-Scale Irregularities in the F-layer Ionospheric

Magnetic field aligned super-small-scale irregularities in the concentration of charged particles are often observed in the Earthrsquos ionosphere and magnetosphere. Earlier, the time evolution of such irregularities was studied with the help of the mathematical model, developed in the Polar Geophysical Institute. This model is based on a numerical solution of the Vlasov-Poisson system of equations. This mathematical model is used in the present paper. The purpose of the present paper is to examine numerically how high-power high-frequency radio waves, utilized for artificial heating experiments and pumped into the ionosphere by ground-based ionospheric heaters, influence on the time evolution of the super-small-scale irregularities present naturally in the F-layer ionospheric plasma. The results of simulation indicate that a presence of high-power high-frequency radio wave ought to influence essentially on the behavior of physically significant parameters of the plasma inside and in the vicinity of the irregularity.nbs

Personalized professional orientation of schoolchildren: designing self-realization in activities

The article authors discusse the methodology of a fundamentally new organization of preparing schoolchildren for a conscious orientation in a rapidly changing professional environment, the essence of which is the formation of the schoolchildrens ability to meaningfully construct invariants of their professional activity, providing an actual change in the state of the object in the process of putting forward and implementing their own ideas. The expediency of introducing the discipline WORLD of activity into the curriculum is proved, the content of which is aimed at creating a holistic parametric model of the subjects professional activity and the meaningful implementation of the axiomatic relationship of changes in the structure of the activity with changes in the state of the objects parameters in a real environment. The development mechanism of a schoolchildrens ability to carry out the transformation and design of activities in the process of update the relationship of activity directions is described: industrial, environmental, scientific, artistic, managerial, pedagogical, medical, physical, need, goal, self-determination, norms, criteria, content, methods, personal abilities, and ways of working. It is argued that the conscious management of the selection of the relationship of directions of activity and their contextual filling with information that reflects the state and changes in the environment of activity allows the schoolchildren to develop original ideas and create many options for their implementation, to discover a wide range of professional trajectories and opportunities for self-realization in activities. The indicators of productivity of personalized professional orientation of schoolchildren were revealed: an increase in the productivity of intellectual activity, an increase in personal motivation and a personal need for predicting promising areas and types of activity, a decrease in unproductive memory load about the knowledge about well-known areas of activity and professions, real-time construction of professional activities in the chosen field

Radio seismology of the outer solar corona

Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius). However, coronal seismology in EUV lines fails for higher altitudes because of rapid decrease in line intensity. We aim to use radio observations to estimate the plasma parameters of the outer solar corona (> 0.2 R_0). We use the large Ukrainian radio telescope URAN-2 to observe type IV radio burst at the frequency range of 8-32 MHz during the time interval of 09:50-12:30 UT in April 14, 2011. The burst was connected to C2.3 flare, which occurred in AR 11190 during 09:38-09:49 UT. The dynamic spectrum of radio emission shows clear quasi-periodic variations in the emission intensity at almost all frequencies. Wavelet analysis at four different frequencies (29 MHz, 25 MHz, 22 MHz and 14 MHz) shows the quasi-periodic variation of emission intensity with periods of 34 min and 23 min. The periodic variations can be explained by the first and second harmonics of vertical kink oscillation of transequatorial coronal loops, which were excited by the same flare. The apex of transequatorial loops may reach up to 1.2 R_0 altitude. We derive and solve the dispersion relation of trapped MHD oscillations in a longitudinally inhomogeneous magnetic slab. The analysis shows that a thin (with width to length ratio of 0.1), dense (with the ratio of internal and external densities of > 20) magnetic slab with weak longitudinal inhomogeneity may trap the observed oscillations. Seismologically estimated Alfv\'en speed inside the loop at the height of 1 R_0 is 1000 km/s. Then the magnetic field strength at this height is estimated as 0.9 G. Extrapolation of magnetic field strength to the inner corona gives 10 G at the height of 0.1 R_0.Comment: 12 pages, 10 figures, Accepted in A&

Peculiar Features of the Velocity Field of OB Associations and the Spiral Structure of the Galaxy

Some of the peculiar features of the periodic velocity-field structure for OB associations can be explained by using the model of Roberts and Hausman (1984), in which the behavior of a system of dense clouds is considered in a perturbed potential. The absence of statistically significant variations in the azimuthal velocity across the Carina arm, probably, results from its sharp increase behind the shock front, which is easily blurred by distance errors. The existence of a shock wave in the spiral arms and, at the same time, the virtually free motion of OB associations in epicycles can be reconciled in the model of particle clouds with a mean free path of 0.2-2 kpc. The velocity field of OB associations exhibits two appreciable nonrandom deviations from an ideal spiral pattern: a 0.5-kpc displacement of the Cygnus- and Carina-arm fragments from one another and a weakening of the Perseus arm in quadrant III. However, the identified fragments of the Carina, Cygnus, and Perseus arms do not belong to any of the known types of spurs.Comment: 14 pages, 3 postscript figures, to be published in Astronomy Letter