Dirichlet Fractional Laplacian in multi-tubes

We describe the spectrum structure for the restricted Dirichlet fractional Laplacian in multi-tubes, i.e. domains with cylindrical outlets to infinity. Some new effects in comparison with the local case are discovered.Comment: 20 pages, 2 figure

NMR evidence for two-step phase-separation in Nd_{1.85}Ce_{0.15}CuO_{4-delta}

By Cu NMR we studied the spin and charge structure in Nd_{2-x}Ce_{x}CuO_{4-delta}. For x=0.15, starting from a superconducting sample, the low temperature magnetic order in the sample reoxygenated under 1 bar oxygen at 900^0 C, reveals a peculiar modulation of the internal field, indicative for a phase characterized by large charge droplets ('Blob'-phase). By prolonged reoxygenation at 4 bar the blobs brake up and the spin structure changes to that of an ordered antiferromagnet (AF). We conclude that the superconductivity in the n-type systems competes with a genuine type I Mott-insulating state

Cu(2) nuclear resonance evidence for an original magnetic phase in aged 60K-superconductors RBa2Cu3O6+x (R=Tm,Y)

It is widely believed that the long-range antiferromagnetic order in the RBa2Cu3O6+x compounds (R=Y and rare earths except of Ce, Pr, Tb) is totally suppressed for the oxygen index x>0.4 (AFM insulator-metal transition). We present the results of the copper NQR/NMR studies of aged RBa2Cu3O6+x (R=Tm,Y) samples showing that a magnetic order can still be present at oxygen contents x up to at least 0.7 and at temperatures as high as 77K.Comment: 7 pages, 6 figures. Submitted to Phys.Rev.

Russian Crime of the Past Decade: Is the Time of Illusions Over?

The purpose of the study is by analyzing the state and dynamics of crime in Russia over the past decade (2010-2020): 1) to identify the factors that influenced the criminal activity of the Russian population during this period; 2) determine the main directions of the then implemented state criminal policy; 3) assess its effectiveness. Research methods: method of summary and grouping of statistical observation materials, analysis of absolute and relative values (structure, intensity and dynamics), analysis of series of dynamics. The results of the study indicate that, since 2015, there has been a progressive increase in crime in Russia, due to unfavorable trends in the development of the socio-economic sphere. During this period, there was also a significant discrepancy between the data of official crime statistics and the real situation in the field of crime. This discrepancy was due to large-scale transformation processes taking place in the sphere of the state’s criminal policy. Accordingly, the decrease in the amount and level of official crime in Russia in 2016-2018 was a consequence of these processes, while the real crime continued to grow all these three years. However, the sharp increase in crimes against property committed through the use of information and communication technologies, which began in Russia several years ago, ultimately could not but be reflected in the data of official crime statistics – in the past two years, an increase in both the amount and the level of crime has been recorded in the state. Russian law enforcement agencies have so far shown their unwillingness to offer serious resistance to digital crime. Russian law enforcement agencies have so far demonstrated their unwillingness to offer serious resistance to digital crime. The situation is significantly complicated by the fact that a significant part of crimes in the sphere of information and communication technologies is committed by inmates of Russian prisons. This means that today, in addition to a strong external influence from the criminal environment, the country’s law enforcement system is also experiencing a powerful endogenous influence from the criminals who are already serving their sentences in prisons

Methods and means of realization of interaction technologies in the university

The article discusses the process of organizing the educational process with the use of various educational technologies that contribute to the achievement of effective interaction between students and between students and the teacher. The purpose of the article is to present the experience of using methods and means of implementing interaction technologies in higher education. The goal implies that educational technologies are one of the key elements in the preparation of students of higher schools. They allow forming professional competence of students, emphasizing the leading role of their independence, activity in the consulting role of the teacher. The analysis of the educational process with the application of modern educational technologies given in the article allowed to reveal some features in which appearance is caused by the specificity of the realization of technologies. Modern methods and means of their implementation contribute to the guaranteed achievement of educational goals, the interaction of students becomes more coherent and acquires a new, productive character. Of particular importance are educational technologies for students of pedagogical universities, as their future professional activity is directly related to the use of methods and means of their implementation. The article presents the experience of implementing interaction technologies at the University of Minin in the discipline "Pedagogical technologies". As practice shows, such methods as brainstorming, a round table, a case method allow you to teach students how to conduct a dialogue, develop students' interest and motivation to study the discipline, and thereby allow them to form their competence. The results of the implementation of methods and means of implementing interaction technologies showed that having an understanding of educational technologies at the initial stages of training and forming the skill of interaction under their influence throughout the training period, students have the opportunity to form professional competence and organize their professional activities at a high level.&nbsp

Multimedia technologies in vocational education

Modern higher professional education is aimed at the formation of a highly qualified competent specialist. In the conditions of the competence approach, there is an active introduction in the educational process of multimedia technologies. This is one of the most rapidly developing areas of information technology. Therefore, the training of students should be carried out with the use of various information and communication tools, ensuring the improvement of the quality of education. The purpose of the article is to present the experience of training students of pedagogical University using multimedia technologies. The analysis of the impact of these technologies on the motivation and training of students when studying discipline "technology of training teachers of the past" (media technologies have been embedded in the discipline content). For the study, we measured the motivation of students. We compared the indicators of motivation diagnostics in 2017 (before the introduction of multimedia technologies) and 2018 (after the introduction of technologies). We compared the motives of creative realization (MTR) and professional motives (PM). According to the control event on the discipline "Technologies of teaching teachers of the past", we found that the percentage of "excellent" in 2018 has increased significantly, the percentage of unsatisfactory ratings have decreased. The obtained data allowed detecting positive changes after the introduction of multimedia technologies into the educational process. The motivation of students to study the discipline has increased, their preparedness has increased, and the quality of education has increased. The high efficiency of multimedia technologies was determined, so their implementation in the training of students of pedagogical University will continue

Features Exterior of Cattle of Breed Limousian in the Period of Their Acclimation in the Conditions of the Northern Trans-Ural

The paper presents a characteristic of the exterior features of the specialized limousin meat breed bred in the conditions of the Tyumen region. Studies were conducted on first-calf cows of different generations of animals. At the same time, the introduced animals belong to the zero generation, their descendants to the 1st generation, and the grandchildren belong to the 2nd genetic-ecological generation. In the process of research, it was that the acclimatization process left its mark on the manifestation of the main breeding and productive qualities of the studied livestock generations. One of the manifestations of which was a certain grinding of cows of the first generation. The obtained results of the exterior assessment of cows of different generations showed that the best exterior development was observed in cows of the second and zero generation. So, in cows of the first and second generations there was a decrease in measurements of the chest, estimated by the chest index by 1.1–3.1 % (P> 0.999), with an increase in the proportions characterizing the development of meat qualities of animals by 6.2–6.6 % (P> 0.999). Adaptation to new conditions confirms the development of such indices as the typical physique and severity of type, which, when changing generations, had an increase dynamic

First time determination of the microscopic structure of a stripe phase: Low temperature NMR in La2NiO4.17

The experimental observations of stripes in superconducting cuprates and insulating nickelates clearly show the modulation in charge and spin density. However, these have proven to be rather insensitive to the harmonic structure and (site or bond) ordering. Using 139La NMR in La2NiO4.17, we show that in the 1/3 hole doped nickelate below the freezing temperature the stripes are strongly solitonic and site ordered with Ni3+ ions carrying S=1/2 in the domain walls and Ni2+ ions with S=1 in the domains.Comment: 4 pages including 4 figure