In this review a detailed study of the properties of elliptical and triangular eccentricities in the initial state of heavy ion collisions is presented. We use the model of random energy source distribution in the transverse plane within effective theory of color condensation. It is shown that the elliptical flow is closely related with the geometry of the ions collision. A triangular flow has a purely fluctuation nature and its dependence on centrality is determined exclusively overlap area.
Show AbstractAnalyse of distributed oscillations of soft elastic vessel with blood flow in it is supplied and conditions of wave effects existence are considered. Dispersion characteristics of acoustic processes are given. The possibility of the existence of fixed structures is shown, conditions of instability rise are described.
Show AbstractDictyostelium discoideum (DD) is a species of soil-dwelling amoeba belonging to the phylum Amoebozoa, infraphylum Mycetozoa. The life cycle of this organism, commonly referred to as a slime mold, consists of unicellular and multicellular stages: when food is scarce, myxamoebae stop feeding, move to each other, collide and stick together, forming intermediate clusters, which then aggregate to form a so-called slug, which includes up to 105 cells. This process is controlled by interacting intracellular and extracellular signaling systems. In this paper, we propose a model of the initial stages of myxamoeba aggregation based on cellular automata. The model includes four interconnected systems of cellular automata, one of which, that describes the movement of myxamoebae, consists of movable cellular automata. The other three systems model the release and diffusion of three main signal components forming the chemotactic field that determines the behavior of myxamoebae. Numerical experiments have shown that the model describes dynamics of the mixamoeba distribution on the surface corresponding to the real DD aggregation process. In particular, it was shown that at the first stages of aggregation, cell clustering always occurs, after which clusters merge to form continuous cell flows moving to the center of aggregation.
Show AbstractA variant of the method of three-electrode differential pulse voltammetry for use in studies of antioxidants in natural lipids is presented and substantiated. Voltammetric analysis of the total lipids of the gonads of the Black Sea mussel Mytilus galloprovincialis L. and the liver of the Black Sea katran Squalus acanthias showed that they have one similar anodic wave with an oxidation potential of +0.60 V. The difference between the studied aquatic organisms is associated with the registration of one more anodic wave with an oxidation potential of + 1.20 V in the lipids of the mussel gonads and +0.90 V in the lipids of the liver of katran. It was suggested that the first anodic wave with an oxidation peak potential of +0.60 V in the lipids of the gonads of the mussel and liver of katran may belong to alpha-tocopherol. Probably, it is alpha-tocopherol that is involved in the formation of a molecular complex with paramagnetic properties found in the total lipids of the gonads of the Black Sea mussel Mytilus galloprovincialis L. and the liver of the Black Sea katran Squalus acanthias.
Show AbstractThis article is written on the basis of solving the problem of three-dimensional visualization of dose distributions in the investigated volume of the body, as well as increasing the resolution of the resulting image by interpolating doses taken from certain areas of the investigated body by volume in the intervals between these areas and their visualization. The developed software is supposed to be used in the proton therapy complex «Prometheus» created by JSC «Protom».
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