Mancha3D Code: Multipurpose Advanced Nonideal MHD Code for High-Resolution Simulations in Astrophysics.

The Mancha3D code is a versatile tool for numerical simulations of magnetohydrodynamic (MHD) processes in solar/stellar atmospheres. The code includes nonideal physics derived from plasma partial ionization, a realistic equation of state and radiative transfer, which allows performing high-quality realistic simulations of magnetoconvection, as well as idealized simulations of particular processes, such as wave propagation, instabilities or energetic events. The paper summarizes the equations and methods used in the Mancha3D (Multifluid (-purpose -physics -dimensional) Advanced Non-ideal MHD Code for High resolution simulations in Astrophysics 3D) code.

[Combining ability for the traits of stem branching and plant height in linseed lines].

Combining ability for the traits of stem branching and plant height has been studied in ten pure lines of flax under complete and incomplete diallel crosses. High heritability of the traits "plant height", "the number of lateral stems" and "the number of lateral shoots" and essential role of genes with dominant effects of interaction in genetic control of the traits of stem branching and plant height have been shown. On the basis of combining ability indexes the ways for usage of certain genotypes and crossing combinations in flax breeding were defined.

[The systems of genetic control of the traits of branching and plant height in linseed].

The genetic control of the traits "plant height", "the number of lateral shoots" and "the number of lateral stems" has been studied in 3 pure lines and 1 variety of linseed according to the model 1 of Hayman method. It has been shown that the traits under investigation are inherited according to the additive-dominant model of genetic control in the absence of any interloci interactions. The higher plant height and numerous lateral shoots are recessive traits controlled by 2 blocks of polymeric genes, whereas the trait of numerous lateral stems is a dominant trait influenced by 1 to 3 blocks of genes.

[Improvement of a series of agriculturally valuable traits by pollen selection in Linum usitatissimum L].

Influence of selection of F1 high temperature tolerant pollen on the structure of BC1 segregating populations was studied for a number of agronomically important traits in oil flax. It was found that heat treatment of heterogeneous pollen population considerably changed genetic composition of plant population not only for tolerance to drought but for duration of seedling emergence--flowering period and quantity and inclination angle of side shoots as well. It is supposed that genes which confer these traits are at least partially linked to the genes responsible for pollen sensitivity to high temperature.

[Problems of using computer technics in hospitals of various profiles].

The main causes restraining the introduction of computers in medical establishments have been analyzed. It is noted that the most rational way of introducing computers into medical establishments consists in the development of local computer network (LCN). An optimal variant of multicomputer association is represented by LCN based on star topology having a multidrop line as a shunt.