The question of the development of professionalism

The article deals with the issues of professional maturity and development of personal professionalism in the process of vocational trainingВ статье рассматриваются вопросы профессиональной зрелости и развития профессионализма личности в процессе профессионального обучени

Is the Relation Between the Solar Wind Dynamic Pressure and the Magnetopause Standoff Distance so Straightforward?

We present results of global magnetohydrodynamic simulations which reconsider the relationship between the solar wind dynamic pressure (Pd) and magnetopause standoff distance (RSUB). We simulate the magnetospheric response to increases in the dynamic pressure by varying separately the solar wind density or velocity for northward and southward interplanetary magnetic field (IMF). We obtain different values of the power law indices N in the relation RSUB- ¼Pd- 1/N depending on which parameter, density, or velocity, has been varied and for which IMF orientation. The changes in the standoff distance are smaller (higher N) for a density increase for southward IMF and greater (smaller N) for a velocity increase. An enhancement of the solar wind velocity for a southward IMF increases the magnetopause reconnection rate and Region 1 current that move the magnetopause closer to the Earth than it appears in the case of density increase for the same dynamic pressure.Plain Language SummaryThe magnetopause is the boundary between the near- Earth space, which is governed by the magnetic field produced in the Earth’s core, and interplanetary space populated by the plasma emitted from the Sun called the solar wind. It is well known that the position of this boundary is defined by the balance of the pressures from both sides of the magnetopause and in a unique way depends on the velocity and density of the plasma in the interplanetary space. In this work, we reexamine the relationship between the magnetopause position and parameters of the solar wind by means of computer modeling. It is shown that the relationship between solar wind velocity and density and magnetopause position is more complex than originally thought. It is suggested that the pressure balance condition through the magnetopause depends on the continuing magnetic reconnection between the interplanetary and magnetospheric magnetic field lines and that the consequences of the reconnection change the relationship between the solar wind dynamic pressure and magnetopause boundary location.Key PointsWe reconsider the relation between the solar wind dynamic pressure and magnetopause standoff distanceThe magnetopause reacts differently to density, and velocity increases for the same dynamic pressureA new scaling law for magnetopause standoff distance is proposedPeer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154966/1/grl60461_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154966/2/grl60461.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154966/3/grl60461-sup-0001-Supporting_Information_SI-S01.pd

Space and time in the context of social measurement

This paper discusses some of the basic philosophical concepts – the concepts of “space and time” - and their relation to social evolution. The work presents the characteristics of social forms of space and time, shows the specifics of their formation in connection with human activity and the system of social relations. It was found that time duration has different manifestations in the context of historically different cultural epochs. Acceleration of social time takes place in the course of human historical practice development. Meanwhile, some social systems sometimes take the form of a certain deceleration in time. This usually occurs because of the inadequacy of the control system for the capabilities of the social organism. Social space is primarily connected with the dynamics of changes in social bonds and relationships. In the process of historical formation of social systems, social space assumes a more complex structure and expands. In the period of globalization growth, social space takes the form of a truly global integral system.peer-reviewe

Social media revisiting or the reverse side of medal

The author considers the situations related to the threats that exist in social networksРассматриваются ситуации, связанные с угрозами, существующими в социальных сетя

Effect of ripening temperature on the texture of cow milk Kashkaval cheese

Texture development during ripening of cow milk Kashkaval cheese at different temperatures (9±1 °С, 11±1 °С and 13±1 °С) was studied. Texture parameters representing cheese hardness, cohesiveness, springiness, adhesiveness, gumminess and chewiness were determined by texture profile analysis. It was found that hardness, gumminess and adhesiveness of all studied samples increased, while springiness and cohesiveness decreased during ripening. An increase of chewiness values during the first stages of ripening was observed, followed by a decrease to the 60th day. It was found that ripening time, as well as ripening temperature had a significant effect on the changes in Kashakaval texture parameters. Cheese samples ripened at higher temperatures had lower values for hardness, cohesiveness, gumminess and chewiness. Ripening temperature had no significant effect on the changes in springiness and adhesiveness of the studied samples. The results obtained showed that by an appropriate combination of the two factors, ripening time and temperature, the changes in the Kashkaval cheese texture can be controlled, which is important for the quality of the final product

Quantitative investigation of reproduction of gonosomal condensed chromatin during trophoblast cell polyploidization and endoreduplication in the east-european field vole Microtus rossiaemeridionalis

Simultaneous determinations of DNA content in cell nuclei and condensed chromatin bodies formed by heterochromatized regions of sex chromosomes (gonosomal chromatin bodies, GCB) have been performed in two trophoblast cell populations of the East-European field vole Microtus rossiaemeridionalis: in the proliferative population of trophoblast cells of the junctional zone of placenta and in the secondary giant trophoblast cells. One or two GCBs have been observed in trophoblast cell nuclei of all embryos studied (perhaps both male and female). In the proliferative trophoblast cell population characterized by low ploidy levels (2–16c) and in the highly polyploid population of secondary giant trophoblast cells (32–256c) the total DNA content in GCB increased proportionally to the ploidy level. In individual GCBs the DNA content also rose proportionally to the ploidy level in nuclei both with one and with two GCBs in both trophoblast cell populations. Some increase in percentage of nuclei with 2–3 GCBs was shown in nuclei of the placenta junctional zone; this may be accounted for by genome multiplication via uncompleted mitoses. In nuclei of the secondary giant trophoblast cells (16–256c) the number of GCBs did not exceed 2, and the fraction of nuclei with two GCBs did not increase, which suggests the polytene nature of sex chromosomes in these cells. In all classes of ploidy the DNA content in trophoblast cell nuclei with the single GCB was lower than in nuclei with two and more GCBs. This can indicate that the single GCB in many cases does not derive from fusion of two GCBs. The measurements in individual GCBs suggest that different heterochromatized regions of the X- and Y-chromosome may contribute in GCB formation

Legend of Robber Kudeyar and Its Interpretation by N. Nekrasov in Poem “Who Lives Well in Russia”

The article considers the relevance of the interpretation and artistic embodiment of the legend “About two Great Sinners”, which is included in the chapter “A Feast for the whole World” of the poem by N. Nekrasov “Who lives well in Russia”. The authors emphasize that the Nekrasov episode, on the one hand, is based on a familiar folklore plot, on the other — it is interpreted by the poet differently than is traditionally accepted in folk texts. The analysis pointed out that, if in the folklore emphasis is placed on the image of the robber Kudeyar undergoing spiritual transformation, in the poem of Nekrasov focus redirected to the image of “the other robber”, pan Glukhovsky, who, in the view of the author of the poem, is the “most sinful of all”. The article pays special attention to the aspect of the displacement of moral components by social ones. It is demonstrated that Nekrasov approach to solving the core issue of the head, “Who in Russia most sinful of all?” biased and removed from under-standing the triad of “sin of the landowner, sin of the robber, sin of the peasant” pro-posed by the heroes of the Chapter “Feast...”, but makes a scene-meaning “substitute” all “sinners” episodes only responsible for the sinner recognizes the nobleman, only at the social level, opposed to the peasant

Search for the Radiative Capture d+d->^4He+\gamma Reaction from the dd\mu Muonic Molecule State

A search for the muon catalyzed fusion reaction dd --> ^4He +\gamma in the dd\mu muonic molecule was performed using the experimental \mu CF installation TRITON and NaI(Tl) detectors for \gamma-quanta. The high pressure target filled with deuterium at temperatures from 85 K to 800 K was exposed to the negative muon beam of the JINR phasotron to detect \gamma-quanta with energy 23.8 MeV. The first experimental estimation for the yield of the radiative deuteron capture from the dd\mu state J=1 was obtained at the level n_{\gamma}\leq 2\times 10^{-5} per one fusion.Comment: 9 pages, 3 Postscript figures, submitted to Phys. At. Nuc