A method of solid-solid phase equilibrium calculation by molecular dynamics.

A method for evaluation of solid-solid phase equilibrium curves in molecular dynamics simulation for a given model of interatomic interaction is proposed. The method allows to calculate entropies of crystal phases and provides an accuracy comparable with that of the thermodynamic integration method by Frenkel and Ladd while it is much simpler in realization and less intense computationally. The accuracy of the proposed method was demonstrated in MD calculations of entropies for EAM potential for iron and for MEAM potential for beryllium. The bcc-hcp equilibrium curves for iron calculated for the EAM potential by the thermodynamic integration method and by the proposed one agree quite well.

[Analysis of frequency and structure of cerebrovascular diseases in servicemen during the military physician expertise].

Analysis of the results of medical inspection of soldiers under contract taken place in 2005-2009 is given. In 48.9% of cases was revealed diseases of blood circulatory system. In patients with cardiovascular events in 42.2% of cases different forms of cerebrovascular diseases were diagnosed. It shows high level of these diseases and its early progression among the servicemen. According to the authors, specific peculiarities of intensive military service provide the early progression of diseases. In such a case, presence of cerebrovascular diseases influences on expert decisions about professional suitability of servicemen for some military specialties including the level of suitability for military service.

Electronic structure and magnetic state of transuranium metals under pressure.

The electronic structures of bcc Np, fcc Pu, Am, and Cm pure metals under pressure have been investigated employing the LDA + U method with spin-orbit coupling (LDA + U + SO). The magnetic state of the actinide ions was analyzed in both LS and jj coupling schemes to reveal the applicability of corresponding coupling bases. It was demonstrated that whereas Pu and Am are well described within the jj coupling scheme, Np and Cm can be described appropriately neither in a {mσ}, nor in a {jmj} basis, due to intermediate coupling scheme realization in these metals that requires some finer treatment. The LDA + U + SO results for the considered transuranium metals reveal band broadening and gradual 5f electron delocalization under pressure.