1,831 research outputs found
FINANCIAL CONTROL AS A CATEGORY
The article reveals the basics of “financial control” as a category. The main attention is concentrated on the “control” itself (asa term), multiplicity of interpretation of“financial control” term and its juristic-practical matching. The duality of financial control category is detected. The identity of terms “financial control” and “state financial control” is justified. The article also offers ways of development of financial control juristical regulation
Lasing Effect in Symmetrical van der Waals Heterostructured Metasurfaces Due to Lattice-Induced Multipole Coupling
New practical ways to reach the lasing effect in symmetrical metasurfaces have been developed and theoretically demonstrated. Our approach is based on excitation of the resonance of an octupole quasi-trapped mode (OQTM) in heterostructured symmetrical metasurfaces composed of monolithic disk-shaped van der Waals meta-atoms featured by thin photoluminescent layers and placed on a substrate. We revealed that the coincidence of the photoluminescence spectrum maximum of these layers with the wavelength of high-quality OQTM resonance leads to the lasing effect. Based on the solution of laser rate equations and direct full-wave simulation, it was shown that lasing is normally oriented to the metasurface plane and occurs from the entire area of metasurface consisting of MoS2/hBN/MoTe2 disks with line width of generated emission of only about 1.4 nm near the wavelength 1140 nm. This opens up new practical possibilities for creating surface emitting laser devices in subwavelength material systems
БАЗОВАЯ ПОДГОТОВКА СПЕЦИАЛИСТОВ ПО IT-НАПРАВЛЕНИЯМ
The article shows a contradiction in the guidance document on the organization of educational process in higher education and proposes an approach to the resolution of this contradiction. Formed the content of the basic training of IT-specialists of different directions. Proposed structure and content of the course and final qualifying works.В статье показывается противоречие в руководящих документах по организации образовательного процесса в ВУЗах и предлагается подход к разрешению этого противоречия. Формируется содержание базовой подготовки IT-специалистов различных направлений. Предлагается структура и содержание курсовых и выпускной квалификационной работ
РОЛЬ И МЕСТО ЗАЩИТЫ ИНФОРМАЦИИ В ПРОГРАММЕ ПОДГОТОВКИ IT-СПЕЦИАЛИСТОВ
This article discusses the importance of issues related to the protection of information in the preparation of modern information technology specialists. Notes the importance of studying IT-specialists of this perspective and the need for an integrated approach to the selection and/or development of information security systems. Define the content of training programs on information security, as well as the amount of knowledge in the field of mathematics and information technologies needed for the development of this program. Formulated requirements to the results of development of the program and noted the need to include the protection of information in coursework and final qualifying work.В настоящей статье обсуждается значение проблематики, связанной с защитой информации, в процессе подготовки современных специалистов по информационным технологиям. Отмечается важность изучения IT-специалистами указанной проблематики и необходимость комплексного подхода к выбору и/или разработке систем защиты информации. Определяется содержание программы подготовки по информационной безопасности, а также объем знаний в области математики и информационных технологий, необходимый для освоения этой программы. Формулируются требования к результатам освоения указанной программы и отмечается необходимость включения вопросов защиты информации в курсовую и выпускную квалификационную работы
Spinoptics in a stationary spacetime
The main goal of the present paper is to study how polarization of photons
affects their motion in a gravitational field created by a rotating massive
compact object. We study propagation of the circularly polarized beams of light
in a stationary gravitational field. We use (3+1)-form of the Maxwell equations
to derive a master equation for the propagation of monochromatic
electromagnetic waves of the frequency with a given helicity. We first
analize its solutions in the high frequency approximation using the `standard'
geometrical optics approach. After that we demonstrate how this `standard'
approach can be modified in order to include the effect of the helicity of
photons on their motion. Such an improved method reproduces the standard
results of the geometrical optics at short distances. However, it modifies the
asymptotic behavior of the circularly polarized beams in the late-time regime.
We demonstrate that the corresponding equations for the circularly polarized
beam can be effectively obtained by modification of the background geometry by
including a small factor proportional to whose sign corresponds
to photon helicity. We obtain the modified equations for circularly polarized
rays by using such a `renormalization' procedure, and calculate the
corresponding renormalization term for the Kerr geometry.Comment: Added references, 13 page
New Nanostructured Carbon Coating Inhibits Bacterial Growth, but Does Not Influence on Animal Cells
An electrospark technology has been developed for obtaining a colloidal solution containing nanosized amorphous carbon. The advantages of the technology are its low cost and high performance. The colloidal solution of nanosized carbon is highly stable. The coatings on its basis are nanostructured. They are characterized by high adhesion and hydrophobicity. It was found that the propagation of microorganisms on nanosized carbon coatings is significantly hindered. At the same time, eukaryotic animal cells grow and develop on nanosized carbon coatings, as well as on the nitinol medical alloy. The use of a colloidal solution as available, cheap and non-toxic nanomaterial for the creation of antibacterial coatings to prevent biofilm formation seems to be very promising for modern medicine, pharmaceutical and food industries
The Future of the Correlated Electron Problem
The understanding of material systems with strong electron-electron
interactions is the central problem in modern condensed matter physics. Despite
this, the essential physics of many of these materials is still not understood
and we have no overall perspective on their properties. Moreover, we have very
little ability to make predictions in this class of systems. In this manuscript
we share our personal views of what the major open problems are in correlated
electron systems and we discuss some possible routes to make progress in this
rich and fascinating field. This manuscript is the result of the vigorous
discussions and deliberations that took place at Johns Hopkins University
during a three-day workshop January 27, 28, and 29, 2020 that brought together
six senior scientists and 46 more junior scientists. Our hope, is that the
topics we have presented will provide inspiration for others working in this
field and motivation for the idea that significant progress can be made on very
hard problems if we focus our collective energies.Comment: 55 pages, 19 figure
Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan
This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good
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