90 research outputs found

    Theoretical prerequisites for the bionic substantiation of spring soil leveler working bodies parameters

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    In the system of measures for pre-sowing tillage, special attention should be given to leveling the soil, ensuring an increase in the uniformity of seeding in depth, which has a significant impact on increasing yields. The main solution to this problem is to improve the design of aligners using a mechanical-bionic approach for the analytical description of the optimal forms and parameters of their working bodies. The design of the working body of the spring soil leveler is proposed, the cutting edges of the undercutting wings of which have ridges and hollows in the form of a logarithmic curve with a positive convexity of curvature inside the depressions, developed by the bionic prototype of the mole cricket (Gryllotalpa). Using the methods of agricultural mechanics, the theoretical dependence of the rational depth of the working bodies and the value of the tractive resistance of spring soil leveler on the travel speed, design parameters and physical-mechanical soil properties, which are proved by the results of experimental research on the south carbonated middle loamy black earth have been established. The experimental spring soil leveler provided the reduction of traction resistance by 7...8% (40...49 N) and had the best stability of motion in depth by an average of 1.5 times (Β± 0.5 cm) in comparison with the serial model of the working bodies of the leveler VPN-5.6 A

    Theoretical background for the bionic substantiation of parameters of the stubble cultivator working bodies

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    In the southern regions of Russia, the technology of cultivation of grain crops in the variant of partial sowing has been widely used. In this regard, it became necessary to create effective working bodies of a stubble cultivator that would have fundamentally new resource-saving ways of influencing the area under cultivating and meet the requirements of modern advanced technologies. The shapes of the working bodies surfaces of the cultivators were improved taking into account the mechanic-bionic approach. The main parameters of the toothed cutting surface were determined by the method of bionic comparisons, with a scarab beetle as a bionic prototype. Use of the serrated shape of the cutting edge is consistent with the bionic principle of multi-contact exposure and leads to the fact that the tops of the teeth become stress concentrators and, with a significantly smaller indentation force, cause soil destruction processes, which reduces the energy costs of cutting the soil layer. The optimal curvilinear shape of the working surface made in the form of a logarithmic spiral, is characterized by a constant value of the angle between the normal and the radius vector, and the value of this angle, equal to the angle of internal friction of the soil Ο†2, will ensure the sliding of the soil and plant residues with minimal energy consumption. The number (n = 4), height (h = 5...7 mm) and tooth placement step (S = 10...12 mm) of the bit tip of the stubble cultivator are analytically justified. The shape of the profile of the working surface of the stubble cultivator bit in the form of a logarithmic spiral with a variable angle of crumbling is proposed. The studies were conducted in the period from September to October 2018 in the soil channel of the research Laboratory of Bionic Agroengineering of the Department of Mechanization and Technical Service in Agro-Industrial Complex. They have shown the decrease in the traction resistance of the proposed working body of the stubble cultivator by 16.5% in comparison with the traction resistance of the serial sample

    Cosmogenic activation of Germanium and its reduction for low background experiments

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    Production of 60^{60}Co and 68^{68}Ge from stable isotopes of Germanium by nuclear active component of cosmic rays is a principal background source for a new generation of 76^{76}Ge double beta decay experiments like GERDA and Majorana. The biggest amount of cosmogenic activity is expected to be produced during transportation of either enriched material or already grown crystal. In this letter properties and feasibility of a movable iron shield are discussed. Activation reduction factor of about 10 is predicted by simulations with SHIELD code for a simple cylindrical configuration. It is sufficient for GERDA Phase II background requirements. Possibility of further increase of reduction factor and physical limitations are considered. Importance of activation reduction during Germanium purification and detector manufacturing is emphasized.Comment: 10 pages, 3 tables, 6 figure

    ΠŸΠΠ ΠΠœΠ•Π’Π Π˜Π—ΠžΠ’ΠΠΠΠ«Π™ Π’ΠΠ™Π›Π˜ΠΠ“: ΠžΠŸΠ Π•Π”Π•Π›Π•ΠΠ˜Π• Π“Π ΠΠΠ˜Π¦ Π›ΠžΠšΠΠ›Π¬ΠΠ«Π₯ Π¦Π˜ΠšΠ›ΠžΠ’ Π’ ΠΠ•ΠŸΠžΠ›ΠΠ«Π₯ ВАЙЛАΠ₯

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    The aspects of parameterized tiling in application to algorithms with index domain represented by a convex polyhedron are investigated. The structure of the set of partial tiles is proposed and the formulas to determine this set are constructed. The formula to define the boundaries of local loops in partial tiles is obtained as well. These formulas enable one to minimize the calculation time of local loop boundaries in the implementation of the tiling in sequential and parallel programs.Β Π˜ΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ‹ аспСкты примСнСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° ΠΊ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ°ΠΌ, ΠΎΠ±Π»Π°ΡΡ‚ΡŒ вычислСния ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… прСдставима Π²Ρ‹ΠΏΡƒΠΊΠ»Ρ‹ΠΌ ΠΌΠ½ΠΎΠ³ΠΎΠ³Ρ€Π°Π½Π½ΠΈΠΊΠΎΠΌ. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° структура мноТСства Π½Π΅ΠΏΠΎΠ»Π½Ρ‹Ρ… Ρ‚Π°ΠΉΠ»ΠΎΠ², построСны Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹ для опрСдСлСния этого мноТСства. Π’Π°ΠΊΠΆΠ΅ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹, ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‰ΠΈΠ΅ Π³Ρ€Π°Π½ΠΈΡ†Ρ‹ измСнСния Π»ΠΎΠΊΠ°Π»ΡŒΠ½Ρ‹Ρ… Ρ†ΠΈΠΊΠ»ΠΎΠ² Π² Π½Π΅ΠΏΠΎΠ»Π½Ρ‹Ρ… Ρ‚Π°ΠΉΠ»Π°Ρ…. Π­Ρ‚ΠΈ Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ врСмя расчСта Π³Ρ€Π°Π½ΠΈΡ† Π»ΠΎΠΊΠ°Π»ΡŒΠ½Ρ‹Ρ… Ρ†ΠΈΠΊΠ»ΠΎΠ² ΠΏΡ€ΠΈ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° Π² ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… ΠΈ ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½Ρ‹Ρ… ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ°Ρ….

    Π”Π’Π£Π₯Π£Π ΠžΠ’ΠΠ•Π’Π«Π™ Π’ΠΠ™Π›Π˜ΠΠ“ И Π•Π“Πž ΠŸΠ Π˜ΠœΠ•ΠΠ•ΠΠ˜Π• ПРИ ΠŸΠ ΠžΠ‘Π’Π ΠΠΠ‘Π’Π’Π•ΠΠΠž-Π’Π Π•ΠœΠ•ΠΠΠžΠœ ΠžΠ’ΠžΠ‘Π ΠΠ–Π•ΠΠ˜Π˜ ΠΠ›Π“ΠžΠ Π˜Π’ΠœΠžΠ’ НА ΠŸΠΠ ΠΠ›Π›Π•Π›Π¬ΠΠ«Π• АРΠ₯Π˜Π’Π•ΠšΠ’Π£Π Π«

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    The idea of application of two-level tiling at space-time mapping of algorithms onto parallel computing systems is proposed. A formalized method of parameterized two-level tiling is developed. The formulas for determination of global dependences between different-level tiles are constructed. The formal representation of sets of iterations generating these dependences is obtained. The representation is given in the form of polyhedra with an explicit expression of their boundaries. A formalized method of space-time mapping onto supercomputers is developed. The method is based on the locally parallel globally sequential mapping strategy and the designed method of two-level tiling. The method realizes the proposed idea of space-time mapping in integration with tiling.Β ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° идСя использования Π΄Π²ΡƒΡ…ΡƒΡ€ΠΎΠ²Π½Π΅Π²ΠΎΠ³ΠΎ Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Ρ‡ΠΈ пространствСнно-Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ отобраТСния Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² Π½Π° ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½Ρ‹Π΅ Π²Ρ‹Ρ‡ΠΈΡΠ»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ систСмы Π·Π°Π΄Π°Π½Π½ΠΎΠΉ размСрности ΠΈ Ρ€Π°Π·ΠΌΠ΅Ρ€Π°. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ Ρ„ΠΎΡ€ΠΌΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π΄Π²ΡƒΡ…ΡƒΡ€ΠΎΠ²Π½Π΅Π²ΠΎΠ³ΠΎ Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π°. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹ для опрСдСлСния Π²Π΅ΠΊΡ‚ΠΎΡ€ΠΎΠ² Π³Π»ΠΎΠ±Π°Π»ΡŒΠ½Ρ‹Ρ… зависимостСй ΠΌΠ΅ΠΆΠ΄Ρƒ Ρ‚Π°ΠΉΠ»Π°ΠΌΠΈ ΠΏΠ΅Ρ€Π²ΠΎΠ³ΠΎ ΠΈ Π²Ρ‚ΠΎΡ€ΠΎΠ³ΠΎ ΡƒΡ€ΠΎΠ²Π½Π΅ΠΉ, Π° Ρ‚Π°ΠΊΠΆΠ΅ Ρ„ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠ΅ прСдставлСниС мноТСств ΠΈΡ‚Π΅Ρ€Π°Ρ†ΠΈΠΉ, ΠΏΠΎΡ€ΠΎΠΆΠ΄Π°ΡŽΡ‰ΠΈΡ… эти зависимости, Π² Π²ΠΈΠ΄Π΅ ΠΌΠ½ΠΎΠ³ΠΎΠ³Ρ€Π°Π½Π½ΠΈΠΊΠΎΠ² с явным Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΠΈΡ… Π³Ρ€Π°Π½ΠΈΡ†. На основС Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π΄Π²ΡƒΡ…ΡƒΡ€ΠΎΠ²Π½Π΅Π²ΠΎΠ³ΠΎ Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° ΠΈ локально ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½ΠΎΠΉ глобально ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ cΡ‚Ρ€Π°Ρ‚Π΅Π³ΠΈΠΈ отобраТСния ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ Ρ„ΠΎΡ€ΠΌΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Ρ‡ΠΈ пространствСнно-Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ отобраТСния Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² Π² ΠΈΠ½Ρ‚Π΅Π³Ρ€Π°Ρ†ΠΈΠΈ с Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³ΠΎΠΌ.

    ΠŸΠ»ΠΎΡ‚Π½Ρ‹Π΅ покрытия области вычислСний Π³Π΅ΠΊΡΠ°Π³ΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ Ρ‚Π°ΠΉΠ»Π°ΠΌΠΈ

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    The hexagonal tiling in application to algorithms with a two-dimensional computational domain is investigated. A formal definition of a parametrized hexagonal tiling is proposed. Necessary and sufficient conditions for a dense coverage of the computational domain by hexagonal tiles are obtained.Communicated by Corresponding Member Leonid A. YanovichΠ˜ΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ‹ аспСкты примСнСния гСксагонального Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° ΠΊ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ°ΠΌ с Π΄Π²ΡƒΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡ‚ΡŒΡŽ вычислСний. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΎ Ρ„ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠ΅ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ гСксагонального Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π°. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹Π΅ ΠΈ достаточныС условия ΠΏΠ»ΠΎΡ‚Π½ΠΎΠ³ΠΎ покрытия области вычислСний Π³Π΅ΠΊΡΠ°Π³ΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ Ρ‚Π°ΠΉΠ»Π°ΠΌΠΈ.ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ΠΎ Ρ‡Π»Π΅Π½ΠΎΠΌ-коррСспондСнтом Π›. А. Π―Π½ΠΎΠ²ΠΈΡ‡Π΅

    Анализ Π³Π»ΠΎΠ±Π°Π»ΡŒΠ½Ρ‹Ρ… зависимостСй Π² гСксагональном Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π΅

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    Tiling is a widely used technique to solve the problems of the efficient use of multilevel memory and optimize data exchanges when developing both sequential and parallel programs. This paper investigates the problem of obtaining global dependencies, i.e. informational dependencies between tiles. The problem is solved in the context of parametrized hexagonal tiling in application to algorithms with a two-dimensional computational domain. The paper includes a formalized definition of the hexagonal tile and the criteria for dense coverage of the computational domain with hexagonal tiles. Herein, we have formulated a statement that permits to obtain all global dependencies between tiles. Formulas are constructed for the determination of sets of iterations of hexagonal tiles generating these dependencies. The sets of iterations that generate global dependencies are obtained in the form of polyhedra with an explicit expression of their boundaries.Π’Π΅Ρ…Π½ΠΈΠΊΠ° Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° ΡˆΠΈΡ€ΠΎΠΊΠΎ примСняСтся Π½Π° ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Ρ‡ эффСктивного использования ΠΌΠ½ΠΎΠ³ΠΎΡƒΡ€ΠΎΠ²Π½Π΅Π²ΠΎΠΉ памяти ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΎΠ±ΠΌΠ΅Π½ΠΎΠ² Π΄Π°Π½Π½Ρ‹ΠΌΠΈ ΠΏΡ€ΠΈ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ ΠΊΠ°ΠΊ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Ρ…, Ρ‚Π°ΠΊ ΠΈ ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½Ρ‹Ρ… ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ исслСдуСтся Π·Π°Π΄Π°Ρ‡Π° получСния Π³Π»ΠΎΠ±Π°Π»ΡŒΠ½Ρ‹Ρ…, уровня Ρ‚Π°ΠΉΠ»ΠΎΠ², зависимостСй. Π—Π°Π΄Π°Ρ‡Π° Ρ€Π΅ΡˆΠ°Π΅Ρ‚ΡΡ Π² контСкстС примСнСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ гСксагонального Ρ‚Π°ΠΉΠ»ΠΈΠ½Π³Π° ΠΊ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ°ΠΌ с Π΄Π²ΡƒΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡ‚ΡŒΡŽ вычислСний. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½ΠΎ Ρ„ΠΎΡ€ΠΌΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ΅ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ гСксагонального Ρ‚Π°ΠΉΠ»Π°, Π° Ρ‚Π°ΠΊΠΆΠ΅ прСдставлСны ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΠΈ ΠΏΠ»ΠΎΡ‚Π½ΠΎΠ³ΠΎ покрытия области вычислСний Π³Π΅ΠΊΡΠ°Π³ΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ Ρ‚Π°ΠΉΠ»Π°ΠΌΠΈ. CΡ„ΠΎΡ€ΠΌΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Π½ΠΎ ΠΈ Π΄ΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡƒΡ‚Π²Π΅Ρ€ΠΆΠ΄Π΅Π½ΠΈΠ΅, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π΅Π΅ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ всС Π³Π»ΠΎΠ±Π°Π»ΡŒΠ½Ρ‹Π΅ зависимости ΠΌΠ΅ΠΆΠ΄Ρƒ Ρ‚Π°ΠΉΠ»Π°ΠΌΠΈ. ΠŸΠΎΡΡ‚Ρ€ΠΎΠ΅Π½Ρ‹ Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹, Π΄Π°ΡŽΡ‰ΠΈΠ΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ мноТСства ΠΈΡ‚Π΅Ρ€Π°Ρ†ΠΈΠΉ Π³Π΅ΠΊΡΠ°Π³ΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… Ρ‚Π°ΠΉΠ»ΠΎΠ², ΠΏΠΎΡ€ΠΎΠΆΠ΄Π°ΡŽΡ‰ΠΈΡ… эти зависимости. ΠœΠ½ΠΎΠΆΠ΅ΡΡ‚Π²Π° ΠΈΡ‚Π΅Ρ€Π°Ρ†ΠΈΠΉ, ΠΏΠΎΡ€ΠΎΠΆΠ΄Π°ΡŽΡ‰ΠΈΡ… Π³Π»ΠΎΠ±Π°Π»ΡŒΠ½Ρ‹Π΅ зависимости, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ Π² Π²ΠΈΠ΄Π΅ ΠΌΠ½ΠΎΠ³ΠΎΠ³Ρ€Π°Π½Π½ΠΈΠΊΠΎΠ² с явным Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΠΈΡ… Π³Ρ€Π°Π½ΠΈΡ†

    Parkinson’s disease, epilepsy, and amyotrophic lateral sclerosisβ€”emerging role of AMPA and kainate subtypes of ionotropic glutamate receptors

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    Ionotropic glutamate receptors (iGluRs) mediate the majority of excitatory neurotransmission and are implicated in various neurological disorders. In this review, we discuss the role of the two fastest iGluRs subtypes, namely, Ξ±-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and kainate receptors, in the pathogenesis and treatment of Parkinson’s disease, epilepsy, and amyotrophic lateral sclerosis. Although both AMPA and kainate receptors represent promising therapeutic targets for the treatment of these diseases, many of their antagonists show adverse side effects. Further studies of factors affecting the selective subunit expression and trafficking of AMPA and kainate receptors, and a reasonable approach to their regulation by the recently identified novel compounds remain promising directions for pharmacological research

    Π‘ΠžΠ—Π”ΠΠΠ˜Π• Π“Π ΠΠ”Π˜Π•ΠΠ’ΠΠ«Π₯ ΠŸΠ›ΠΠ—ΠœΠ•ΠΠΠ«Π₯ ΠŸΠžΠšΠ Π«Π’Π˜Π™ НА ΠžΠ‘ΠΠžΠ’Π• Π”Π˜ΠžΠšΠ‘Π˜Π”Π ЦИРКОНИЯ, Π‘Π’ΠΠ‘Π˜Π›Π˜Π—Π˜Π ΠžΠ’ΠΠΠΠžΠ“Πž Π”Π˜ΠžΠšΠ‘Π˜Π”ΠžΠœ Π˜Π’Π’Π•Π Π‘Π˜Π―

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    The process has been investigated and technological parameters for spraying gradient plasma coatings on the basis of zirconium dioxide stabilized with ytterbium dioxide have been optimized in the paper.ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½Ρ‹ исслСдования процСсса ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ тСхнологичСскиС ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ напылСния Π³Ρ€Π°Π΄ΠΈΠ΅Π½Ρ‚Π½Ρ‹Ρ… ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½Ρ‹Ρ… ΠΏΠΎΠΊΡ€Ρ‹Ρ‚ΠΈΠΉ Π½Π° основС диоксида циркония, стабилизированного диоксидом иттСрбия

    Π˜ΠΠ€Π•ΠšΠ¦Π˜ΠžΠΠΠ«Π• ΠžΠ‘Π›ΠžΠ–ΠΠ•ΠΠ˜Π― ΠŸΠžΠ‘Π›Π• Π Π•ΠšΠžΠΠ‘Π’Π Π£ΠšΠ’Π˜Π’ΠΠ«Π₯ ΠžΠŸΠ•Π ΠΠ’Π˜Π’ΠΠ«Π₯ Π’ΠœΠ•Π¨ΠΠ’Π•Π›Π¬Π‘Π’Π’ Π£ Π‘ΠžΠ›Π¬ΠΠ«Π₯ РАКОМ ΠœΠžΠ›ΠžΠ§ΠΠžΠ™ Π–Π•Π›Π•Π—Π«. ΠžΠŸΠ˜Π‘ΠΠΠ˜Π• ΠšΠ›Π˜ΠΠ˜Π§Π•Π‘ΠšΠžΠ“Πž БЛУЧАЯ

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    Introduction. Currently, there is no global consensus regarding the management of breast cancer patients with implant-associated infections. Some studies clearly recommend their removal and surgical debridement with consecutive antimicrobial treatment, while others prefer long-term antibacterial therapy (at least 1 month) with the effectiveness of such conservative approach of 36–73 %.Case description. A 43-year-old patient suffering from brca1-positive right breast cancer t2n0m0 (invasive carcinoma of non-specific type g3, er – 8, pgr – 0, her-2/neu – 0, ki67 (%) – less than 20 %), underwent radical skin-preserving mastectomy on the right with simultaneous implant reconstruction and preventive subcutaneous mastectomy on the left with simultaneous implant reconstruction. Peri-implant infection in the left breast was observed on the 21st day after surgery.Results. The patient received empirical therapy with cefepim. Microbiological examination of the punctate revealed the causative agent of infection – methicillin-resistant staphylococcus aureus (mrsa) (1Γ—105cfu/ml). Daptomycin 6 mg/kg/day was added to therapy. After 8 weeks, the patient received oral moxifloxacin 400 once daily, for another 3 weeks. A complete response was achieved. The patient has no signs of infection for 3 years.Conclusion. Long-term etiotropic antibacterial therapy with daptomycin followed by oral moxifloxacin resulted in a stable clinical effect.ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ. Π’ настоящСС врСмя Π² ΠΌΠΈΡ€Π΅ Π½Π΅Ρ‚ Π΅Π΄ΠΈΠ½ΠΎΠ³ΠΎ мнСния Π² ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠΈ Ρ‚Π°ΠΊΡ‚ΠΈΠΊΠΈ вСдСния ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠΊ с Ρ€Π°ΠΊΠΎΠΌ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ с ΠΈΠΌΠΏΠ»Π°Π½Ρ‚-ассоциированными инфСкциями. Π’ ΠΎΠ΄Π½ΠΈΡ… исслСдованиях ΠΎΠ΄Π½ΠΎΠ·Π½Π°Ρ‡Π½ΠΎ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½Ρ‹ ΠΈΡ… ΡƒΠ΄Π°Π»Π΅Π½ΠΈΠ΅ ΠΈ хирургичСская санация c ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰Π΅ΠΉ Π°Π½Ρ‚ΠΈΠ±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠ΅ΠΉ, Π² Π΄Ρ€ΡƒΠ³ΠΈΡ… – отдаСтся ΠΏΡ€Π΅Π΄ΠΏΠΎΡ‡Ρ‚Π΅Π½ΠΈΠ΅ Π΄Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Π°Π½Ρ‚ΠΈΠΌΠΈΠΊΡ€ΠΎΠ±Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ (Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ 1 мСс), ΠΏΡ€ΠΈ этом ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ консСрвативного ΠΏΠΎΠ΄Ρ…ΠΎΠ΄Π° достигаСт 36–73 %.ΠšΠ»ΠΈΠ½ΠΈΡ‡Π΅ΡΠΊΠΈΠΉ случай. ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠ΅ 43 Π»Π΅Ρ‚, ΡΡ‚Ρ€Π°Π΄Π°ΡŽΡ‰Π΅ΠΉ BRCa1-ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ Ρ€Π°ΠΊΠΎΠΌ ΠΏΡ€Π°Π²ΠΎΠΉ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ t2n0M0 (инвазивная ΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΠ° нСспСцифичСского Ρ‚ΠΈΠΏΠ° G3, eR – 8, PgR – 0, Her-2/neu – 0, Ki67 (%) – ΠΌΠ΅Π½Π΅Π΅ 20 %), Π±Ρ‹Π»ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Ρ‹ Ρ€Π°Π΄ΠΈΠΊΠ°Π»ΡŒΠ½Π°Ρ коТСсохранная мастэктомия справа с ΠΎΠ΄Π½ΠΎΠΌΠΎΠΌΠ΅Π½Ρ‚Π½ΠΎΠΉ рСконструкциСй ΠΈΠΌΠΏΠ»Π°Π½Ρ‚ΠΎΠΌ ΠΈ профилактичСская подкоТная мастэктомия слСва с ΠΎΠ΄Π½ΠΎΠΌΠΎΠΌΠ΅Π½Ρ‚Π½ΠΎΠΉ рСконструкциСй ΠΈΠΌΠΏΠ»Π°Π½Ρ‚ΠΎΠΌ. Π½Π° 21-Π΅ сут послС ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ Ρ€Π°Π·Π²ΠΈΠ»Π°ΡΡŒ инфСкция Π² области ΠΈΠΌΠΏΠ»Π°Π½Ρ‚Π° Π»Π΅Π²ΠΎΠΉ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠ΅ эмпиричСски Π±Ρ‹Π»Π° Π½Π°Π·Π½Π°Ρ‡Π΅Π½Π° тСрапия Ρ†Π΅Ρ„Π΅ΠΏΠΈΠΌΠΎΠΌ. ΠŸΡ€ΠΈ микробиологичСском исслСдовании ΠΏΡƒΠ½ΠΊΡ‚Π°Ρ‚Π° Π±Ρ‹Π» выявлСн Π²ΠΎΠ·Π±ΡƒΠ΄ΠΈΡ‚Π΅Π»ΡŒ ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ – ΠΌΠ΅Ρ‚ΠΈΡ†ΠΈΠ»Π»ΠΈΠ½-рСзистСнтный золотистый стафилококк (MRSA) Π² количСствС 1Γ—105ΠΊΠžΠ•/ΠΌΠ». ΠΊ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Π±Ρ‹Π» Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ Π΄Π°ΠΏΡ‚ΠΎΠΌΠΈΡ†ΠΈΠ½ 6 ΠΌΠ³/ΠΊΠ³/сут. Π§Π΅Ρ€Π΅Π· 8 Π½Π΅Π΄ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΊΠ° Π±Ρ‹Π»Π° ΠΏΠ΅Ρ€Π΅Π²Π΅Π΄Π΅Π½Π° Π½Π° ΠΏΠ΅Ρ€ΠΎΡ€Π°Π»ΡŒΠ½Ρ‹ΠΉ моксифлоксацин 400 ΠΌΠ³ 1 Ρ€Π°Π· Π² сут, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΏΠΎΠ»ΡƒΡ‡Π°Π»Π° Π΅Ρ‰Π΅ 3 Π½Π΅Π΄. Π½Π° Ρ„ΠΎΠ½Π΅ лСчСния Π±Ρ‹Π» ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ ΠΏΠΎΠ»Π½Ρ‹ΠΉ эффСкт. Π‘ΠΎΠ»ΡŒΠ½Π°Ρ Π±Π΅Π· ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠ² ΠΈΠ½Ρ„Π΅ΠΊΡ†ΠΈΠΈ Π² Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ 3 Π»Π΅Ρ‚.Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. Π”Π»ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ этиотропная Π°Π½Ρ‚ΠΈΠ±Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ°Π»ΡŒΠ½Π°Ρ тСрапия с использованиСм Π΄Π°ΠΏΡ‚ΠΎΠΌΠΈΡ†ΠΈΠ½Π° с ΠΏΠ΅Ρ€Π΅Ρ…ΠΎΠ΄ΠΎΠΌ Π½Π° ΠΏΠ΅Ρ€ΠΎΡ€Π°Π»ΡŒΠ½Ρ‹ΠΉ моксифлоксацин ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»Π° ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ стойкий клиничСский эффСкт ΠΈ своСврСмСнно провСсти Π°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½ΠΎΠ΅ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠ΅ Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅
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