Original scientific article Administrative-legal Status of a Voluntary Squad During Martial Law

The subject of the research is social relations that arise in the course of the activities of voluntary squads during martial law, including the possibility of their involvement by law enforcement and other bodies in the performance of state tasks to ensure public order and national security. The purpose of the work is to determine the theoretical and applied problems of legal regulation of the administrativelegal status of a voluntary squad during the period of martial law. When writing the article, formal-legal, historical-and comparative-legal, logical methods were used. The relevance of the topic is associated with the lack of a clear and even mechanism for the creation and functioning of voluntary squads precisely during the period of martial law. At the legislative level, their competence (powers, forms and acts of responding to violations of laws by individuals and legal entities) in the process of ensuring public order in the controlled territory is not defined. The fact of the absence of a single terminological series in the formation of the legal basis for the activities of voluntary squads is stated. The main part of the article substantiates the conclusion that such voluntary public organizations, taking into account their basic characteristics, should be referred to in regulatory legal acts, regardless of the direction of their action, as a “voluntary people's squad”. A comparative analysis of the legal status of a voluntary squad and volunteer formations is presented. It is concluded that they do not correlate as general and private, voluntary formation, due to the specifics of the goals of education, functioning and financing, is not a kind of voluntary squads. The conclusion is substantiated that voluntary squads should be actively used by law enforcement agencies to ensure the strengthening of public order during martial law. The question is raised about the need to specify in the normative legal acts the administrative and legal status of voluntary squads precisely in the period of martial law. Proposals are made on the mechanism of legal regulation of the powers of voluntary teams and the social and legal protection of combatants when they perform state tasks under these conditions

Studies of concentration and temperature dependencies of precipitation kinetics in iron-copper alloys using kinetic monte carlo and stochastic statistical simulations

The earlier-developed ab initio model and the kinetic Monte Carlo method (KMCM) are used to simulate precipitation in a number of iron-copper alloys with different copper concentrations x and temperatures T. The same simulations are also made using the improved version of the earlier-suggested stochastic statistical method (SSM). The results obtained enable us to make a number of general conclusions about the dependencies of the decomposition kinetics in Fe-Cu alloys on x and T. We also show that the SSM describes the precipitation kinetics in a fair agreement with the KMCM, and employing the SSM in conjunction with the KMCM enables us to extend the KMC simulations to the longer evolution times. The results of simulations seem to agree with available experimental data for Fe-Cu alloys within statistical errors of simulations and the scatter of experimental results. Comparison of results of simulations to experiments for some multicomponent Fe-Cu-based alloys enables us to make certain conclusions about the influence of alloying elements in these alloys on the precipitation kinetics at different stages of evolution.Comment: 18 pages, 17 postscript figures, LaTe

Terahertz emission from silicon carbide nanostructures

For the first time, electroluminescence detected in the middle and far infrared ranges from silicon carbide nanostructures on silicon, obtained in the framework of the Hall geometry. Silicon carbide on silicon was grown by the method of substitution of atoms on silicon. The electroluminescence from the edge channels of nanostructures is induced due to the longitudinal drain-source current. The electroluminescence spectra obtained in the terahertz frequency range, 3.4, 0.12 THz, arise due to the quantum Faraday effect. Within the framework of the proposed model, the longitudinal current induces a change in the number of magnetic flux quanta in the edge channels, which leads to the appearance of a generation current in the edge channel and, accordingly, to terahertz radiation.Comment: 10 pages, 9 figure

Peculiarities of anharmonic lattice dynamics and thermodynamics of alkaline-earth metals

The calculations are performed for a broad range of the properties of Ca and Sr in the fcc and bcc phases. A detailed information on the magnitude and character of temperature dependence of anharmonic effects in the lattice dynamics over the entire Brillouin zone (frequency shifts and phonon damping, Gruneisen parameters) is given. A detailed comparison of the computational results for the heat capacity and thermal expansion with the experimental data is carried out; the theoretical results are in good agreement with the experiment.Comment: 16 pages, 19 Postscript figures, Revte