Threats of economic safety of the Russian construction industry during the economic crisis

This article analyzes potential threats to economic safety, the construction industry in Russia. Identified external and internal factors affecting the economic safety of the Russian construction industry. Defined task of overcoming the economic crisis and thus prevent economic security threat to Russia's construction industry

An Overview of a Grid Architecture for Scientific Computing

This document gives an overview of a Grid testbed architecture proposal for the NorduGrid project. The aim of the project is to establish an inter-Nordic testbed facility for implementation of wide area computing and data handling. The architecture is supposed to define a Grid system suitable for solving data intensive problems at the Large Hadron Collider at CERN. We present the various architecture components needed for such a system. After that we go on to give a description of the dynamics by showing the task flow

Efficiency of activities for career guidance and UrFU promotional programs among potential students

The purpose of this article is the analysis of measures for career guidance of Ural Federal University entrants. A survey among first-year students with continuous sampling was used as data collection method. Results of the analysis of first-year students' opinions about their attitudes to career guidance activities in URFU in 2014 are interesting to educational institutions, to senior high school students and to all other stakeholders in the market of educational services. Conclusions about efficiency of measures for career guidance are relative and can be extrapolated in terms of large cities (more than one million inhabitants) and in terms of large regional and federal universities.Целью статьи выступает анализ мероприятий по профессиональной ориентации абитуриентов при поступлении в Уральский Федеральный университет. При сборе информации применялся метод анкетирования первокурсников, выборка сплошная. Результаты анализа мнений первокурсников об их отношении к профориентационным мероприятиям УрФУ в 2014 году представляют интерес для учреждений образования, старшеклассников и всех иных заинтересованных субъектов на рынке образовательных услуг. Выводы об эффективности мероприятий по профессиональной ориентации носят относительный характер и могут быть экстраполированы в условиях крупных городов (не менее миллиона жителей) и крупных ВУЗов регионального или федерального масштаба

Bose-Einstein correlations at the Z0Z^{0} peak

Presented here is an overview of studies of the manifestations of the Bose-Einstein correlations in the hadronic decays of Z/sup 0/ boson, performed by the LEP experiments. The scope of the overview is confined to studies of two and three particle correlation functions for charged pions, with emphasis on analyses of transverse mass m/sub T/ and directional dependence of the two particle correlation function parameters. (17 refs)

Threats of economic safety of the Russian construction industry during the economic crisis

The article analyzes the potential economic threats to security, the Russian construction industry. Identified external and internal factors influencing an economic security of building branch of Russia are revealed. Defined task of overcoming the economic crisis and thus prevent economic security threat to Russia's construction industry.В статье анализируются потенциальные угрозы экономической безопасности, строительной отрасли России. Выявлены внешние и внутренние факторы, влияющие на экономическую безопасность строительной отрасли России. Определены задачи преодоленияэкономического кризиса и тем самым предотвращения угрозы экономической безопасности строительной отрасли России

Topological strong field physics on sub-laser cycle time scale

Sub-laser cycle time scale of electronic response to strong laser fields enables attosecond dynamical imaging in atoms, molecules and solids. Optical tunneling and high harmonic generation are the hallmarks of attosecond imaging in optical domain, including imaging of phase transitions in solids. Topological phase transition yields a state of matter intimately linked with electron dynamics, as manifested via the chiral edge currents in topological insulators. Does topological state of matter leave its mark on optical tunneling and sub-cycle electronic response? We identify distinct topological effects on the directionality and the attosecond timing of currents arising during electron injection into conduction bands. We show that electrons tunnel across the band gap differently in trivial and topological phases, for the same band structure, and identify the key role of the Berry curvature in this process. These effects map onto topologically-dependent attosecond delays in high harmonic emission and the helicities of the emitted harmonics, which can record the phase diagram of the system and its topological invariants. Thus, the topological state of the system controls its attosecond, highly non-equilibrium electronic response to strong low-frequency laser fields, in bulk. Our findings create new roadmaps in studies of topological systems, building on ubiquitous properties of sub-laser cycle strong field response - a unique mark of attosecond science

Even harmonic generation in isotropic media of dissociating homonuclear molecules

Isotropic gases irradiated by long pulses of intense IR light can generate very high harmonics of the incident field. It is generally accepted that, due to the symmetry of the generating medium, be it an atomic or an isotropic molecular gas, only odd harmonics of the driving field can be produced. Here we show how the interplay of electronic and nuclear dynamics can lead to a marked breakdown of this standard picture: a substantial part of the harmonic spectrum can consist of even rather than odd harmonics. We demonstrate the effect using ab-initio solutions of the time-dependent Schr\"odinger equation for $H$$_2$$^+$ and its isotopes in full dimensionality. By means of a simple analytical model, we identify its physical origin, which is the appearance of a permanent dipole moment in dissociating homonuclear molecules, caused by light-induced localization of the electric charge during dissociation. The effect arises for sufficiently long laser pulses and the region of the spectrum where even harmonics are produced is controlled by pulse duration. Our results (i) show how the interplay of femtosecond nuclear and attosecond electronic dynamics, which affects the charge flow inside the dissociating molecule, is reflected in the nonlinear response, and (ii) force one to augment standard selection rules found in nonlinear optics textbooks by considering light-induced modifications of the medium during the generation process.Comment: 7 pages, 6 figure