Non-reciprocal light scattering by lattice of magnetic vortices

We report on experimental study of optical properties of two-dimensional square lattice of triangle Co and CoFe nanoparticles with a vortex magnetization distribution. We demonstrate that intensity of light scattered in diffraction maxima depends on the vorticity of the particles magnetization and it can be manipulated by applying an external magnetic field. The experimental results can be understood in terms of phenomenological theory.Comment: 10 pages, 4 figure

Pharmacoeconomic analysis of thrombopoietin receptor agonists in the treatment of chronic idiopathic thrombocytopenic purpura in adults

Actuallity. Idiopathic thrombocytopenic purpura (ITP) is an autoimmune disease caused by the production of antibodies to the platelet and megakaryocytes membrane structure, which causes to increase the platelet destruction, but also inadequate thrombocytopoiesis. e disease is characterized by a significant loss of ability to work and decreasing quality of life, higher mortality rate, as well as frequent hospitalizations, re­ecting to health care resources utilization. Therefore, burden of disease assessment is a point of high interest. Methodology. Two pharmacoeconomic models were developed for the "cost-minimization" and "budget impact" analysis on the basis of Microso Excel soware. e modeling hypothesis is comparable efficacy and safety of thrombopoietin receptor agonists (TPO), based on the absence of statistically significant differences from the results of an indirect comparison and the efficacy of romiplostim is assumed to be equal to the efficacy of eltrombopag. Direct medical costs were calculated based on the costs of drugs from the TPO receptor agonist group, the administration of drugs, «rescue therapy», bleeding treatment, and follow-up monitoring of patients with ITP during therapy. Calculations were based on registered limit transfer drug prices from the VED List and standards of the financial expenses per medical care volume unit of Russian Federation in 2018. e reduction in costs per patient per year is 796,967 rubles (33 %). Results. Clinical and economic analysis of drugs from the group of thrombopoietin receptor agonists in the therapy of chronic idiopathic thrombocytopenic purpura in adults has shown that eltrombopag in comparison with romiplostim in patients with chronic ITP at the background of previous treatment failure is more economically expedient being not less clinical effective. It is possible to reduce the budget impact of the healthcare system of the Russian Federation by 1,693 million rubles (8 %) for 5 years with the gradual increasing in eltrombopag share in the purchase of TPO receptor agonists. Conclusion. Eltrombopag with comparable efficacy and safety is more economically sound option of chronic ITP treatment as compared to romiplostim

Investigation of interaction femtosecond laser pulses with skin and eyes mathematical model

We present a mathematical model of linear and nonlinear processes that takes place under the action of femtosecond laser radiation on the cutaneous covering. The study is carried out and the analytical solution of the set of equations describing the dynamics of the electron and atomic subsystems and investigated the processes of linear and nonlinear interaction of femtosecond laser pulses in the vitreous of the human eye, revealed the dependence of the pulse duration on the retina of the duration of the input pulse and found the value of the radiation power density, in which there is a self-focusing is obtained. The results of the work can be used to determine the maximum acceptable energy, generated by femtosecond laser systems, and to develop Russian laser safety standards for femtosecond laser systems

Considerable enhancement of the critical current in a superconducting film by magnetized magnetic strip

We show that a magnetic strip on top of a superconducting strip magnetized in a specified direction may considerably enhance the critical current in the sample. At fixed magnetization of the magnet we observed diode effect - the value of the critical current depends on the direction of the transport current. We explain these effects by a influence of the nonuniform magnetic field induced by the magnet on the current distribution in the superconducting strip. The experiment on a hybrid Nb/Co structure confirmed the predicted variation of the critical current with a changing value of magnetization and direction of the transport current.Comment: 6 pages, 7 figure

Tools for Deconstructing Gauge Theories in AdS5

We employ analytical methods to study deconstruction of 5D gauge theories in the AdS5 background. We demonstrate that using the so-called q-Bessel functions allows a quantitative analysis of the deconstructed setup. Our study clarifies the relation of deconstruction with 5D warped theories.Comment: 30 pages; v2: several refinements, references adde