Laws of distribution of the snow cover on the greater Caucasus (Soviet Union)

The laws of the distribution of the snow cover on the mountains of the greater Caucasus are discussed. It is shown that an extremely unequal distribution of the snow cover is caused by the complex orography of this territory, the diversity of climatic conditions and by the difference in altitude. Regions of constant, variable and unstable snow cover are distinguished because of the clearly marked division into altitude layers, each of which is characterized by climatic differences in the nature of the snow accumulation

Necessary Condition for Self-organization in the BML Model with Stochastic Direction Choice

A dynamical system is considered such that, in this system, particles move on a toroidal lattice of the dimension $N_1\times N_2$ according to a version of the rule of particle movement in Biham--Middleton--Levine traffic model. Particles of the first type move along rows, and the particles of the second type move along columns. A particle can change its type. The probability that, at a step, a particle changes the type equals $q.$ It has been proved that, if whether $q>0$ or $q=0$ and there are at least one particle of the first type and there is at least one particle of the second type, then a necessary condition for a state of free movement to exist is that the greatest divisor of $N_1$ and $N_2$ be not less than~3. The system is represented as an algebraic structure over a set of matrices corresponding to states of the system. The theorems are formulated in terms of the algebraic structures and terms of the dynamical systems. The model is also presented as a Buslaev net. The spectrum of the net $2\times 2$ has been found.Comment: 8,

Approach to Evaluating Characteristics of Multichannel Loss System with FCFD Preempted Priority Discipline

In the paper we consider a multichannel loss preemptive priority system with a Poisson input and general service time distribution depending on the priority of job. Jobs of the same priority are preempted according with First Come First Displaced (FCFD) protocol. Approximate formulas are obtained for the loss probability of a prescribed priority job and some other characteristics of the system. It particular cases, the obtained formulas are exact.Comment: 6 pages, no figures. arXiv admin note: text overlap with arXiv:2206.0926

Polish Revolt (1863 - 1864) in publications of I.S. Aksakov

In the article, the analysis of judgments of a revolt is provided in the Polish Kingdom and Western edge of one of the main ideologists of Slavophilism of I.S. Aksakov. The key moments of its paradigm on this problem are analyzed, the attempt to discover the reasons for the transformation of views of the Slavophile of the Polish events is made. It is revealed that the aggressive methods of fight practiced by rebels caused resistant hostility in Aksakov and other Slavophiles

Laser-induced persistent photovoltage on the surface of a ternary topological insulator at room temperature

Using time- and angle-resolved photoemission, we investigate the ultrafast response of excited electrons in the ternary topological insulator (Bi$_{1 x}$Sb$_{x}$)$_2$Te$_3$ to fs-infrared pulses. We demonstrate that at the critical concentration $x$=0.55, where the system becomes bulk insulating, a surface voltage can be driven at room temperature through the topological surface state solely by optical means. We further show that such a photovoltage persists over a time scale that exceeds $\sim$6 $\mu$s, i.e, much longer than the characteristic relaxation times of bulk states. We attribute the origin of the photovoltage to a laser-induced band-bending effect which emerges near the surface region on ultrafast time scales. The photovoltage is also accompanied by a remarkable increase in the relaxation times of excited states as compared to undoped topological insulators. Our findings are relevant in the context of applications of topological surface states in future optical devices.Comment: 5 pages, 4 figure

Prevention of latent national aggression in the course of future teacher education

© Canadian Center of Science and Education. The basic principles of tolerance, respect for other cultures, readiness for cross-cultural dialogue, basic principles of productive bilingualism are introduced not at school or university, but in kindergarten (age 3-5). At this age, family (parents) and educators play a special role. However, it is in the kindergarten where kids are often badly influenced. The technology of preventing latent national aggression should give students the opportunity to participate in goal-setting, planning their pedagogical activity and its control; ensure their predicting of cross-cultural content, types and results of business or simulation games; when developing the methods of organization of stages in the game, it is necessary to consider the relationship between regulatory, cognitive and communicative components of anticipation. The technology should be based on multicultural content. The values of two cultures, two languages should be disclosed in this content, and positive situations of cross-cultural dialogue should be presented