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Information × Registration Number 0220U103191, 0119U102721 , R & D reports Title Computer simulation of many-particle systems with Coulomb interaction: from plasma to biological macromolecules popup.stage_title Head Chernyak Oleksandr M., Registration Date 03-09-2020 Organization Bogolybov Institute for Theoretical Physics of NASU popup.description2 One of the possible mechanisms of anomalous transport, which is an important problem for controlled fusion, is particle trapping in intensive turbulent fields. The motion of trapped particles is highly correlated, and thus statistical models of such a process cannot use a Gaussian process assumption. The particle trapping effects are most pronounced in two-dimensional transport across the magnetic field. We have introduced the analytical approach to two-dimensional transport of trapped particles in our recent works. The effect of motion along the magnetic field on a particle transport across the magnetic field by random electric one is studied using numerical methods. The various initial values of random field correlation time, finite Larmor radius, velocity along the magnetic field are considered. Numerical simulation demonstrates that particle motion along a magnetic field causes a decorrelation in their motion across a magnetic field. A higher initial particle velocity along the magnetic field gives stronger decorrelation. A DNA macromolecule is the primary carrier of genetic information in a cell, and it regularly exposed to external mechanical forces and local electrical fields during the life of a cell. The double helix shape stabilized by water molecules and counterions inside a cell environment. Any change in its stability can affect all vital physiological processes. The structure and stability of the double helix and the presence of mechanical stresses in it depend on the structure of the medium. The conductivity of the systems, which are consist of the water-ion solution with and without DNA, calculated using the classical molecular dynamics method. The parallel and perpendicular directions of the external electric field to the axis of the double helix considered. The presence of DNA macromolecule in the solution decreases the value of conductivity compared to the solution without DNA. The obtained results are in good agreement with the experimental data. Product Description popup.authors Zdorevskyi Oleksii O. Chernyak Oleksandr M. popup.nrat_date 2020-10-01 Close