514 research outputs found

    DEVELOPMENT OF PROPOSALS ON RATING EVALUATION OF SELF-REGULATING ORGANIZATIONS OF ARBITRATION MANAGERS AND RELEVANT INDICATORS FOR THE IMPLEMENTATION OF THE EVALUATION

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    The article deals with topical issues of the effectiveness of self-regulatory organizations of arbitration managers (SRO AU) and the arbitration managers playing a key role in the bankruptcy law and financial restructuring of Russian enterprises. Despite the increasing demands imposed on the arbitration managers, professionalism and quality of their work remains low, the number of administrative offenses is not reduced. The article discusses various approaches to build-rated activities of CPO AU and the corresponding figures for the implementation of the evaluation

    Coherent radiation of an ultra-relativistic charged particle channeled in a periodically bent crystal

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    We suggest a new type of the undulator radiation which is generated by an ultra-relativistic particle channeled along a periodically bent crystallographic plane or axis. The electromagnetic radiation arises mainly due to the bending of the particle's trajectory, which follows the shape of the channel. The parameters of this undulator, which totally define the spectrum and the angular distribution of the radiation (both spontaneous and stimulated), depend on the type of the crystal and the crystallographic plane (axis), on the type of a projectile and its energy, and on the shape of the bent channel, and, thus, can be varied significantly by varying these characteristics. As an example, we consider the acoustically induced radiation (AIR) which is generated by ultra-relativistic particles channeled in a crystal which is bent by a transverse acoustic wave. The AIR mechanism allows to make the undulator with the main parameters varying in wide ranges, which are inaccessible in the undulators based on the motion of particles in the periodic magnetic fields and also in the field of the laser radiation. The intensity of AIR can be easily made larger than the intensity of the radiation in a linear crystal and can be varied in a wide range by varying the frequency and the amplitude of the acoustic wave in the crystal. A possibility to generate stimulated emission of high-energy photons (in keV - MeV region) is also discussed.Comment: published in J. Phys. G: Nucl. Part. Phys. 24 (1998) L45-L53, http://www.iop.or

    Dynamic avalanche breakdown of a p-n junction: deterministic triggering of a plane streamer front

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    We discuss the dynamic impact ionization breakdown of high voltage p-n junction which occurs when the electric field is increased above the threshold of avalanche impact ionization on a time scale smaller than the inverse thermogeneration rate. The avalanche-to-streamer transition characterized by generation of dense electron-hole plasma capable to screen the applied external electric field occurs in such regimes. We argue that the experimentally observed deterministic triggering of the plane streamer front at the electric field strength above the threshold of avalanche impact ionization but yet below the threshold of band-to-band tunneling is generally caused by field-enhanced ionization of deep-level centers. We suggest that the process-induced sulfur centers and native defects such as EL2, HB2, HB5 centers initiate the front in Si and GaAs structures, respectively. In deep-level free structures the plane streamer front is triggered by Zener band-to-band tunneling.Comment: 4 pages, 2 figure

    Electronic structure of GaAs1-xNx alloy by soft-X-ray absorption and emission: Origin of the reduced optical efficiency

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    The local electronic structure of N atoms in a diluted GaAs1-xNx (x=3%) alloy, in view of applications in optoelectronics, is determined for the first time using soft-X-ray absorption (SXA) and emission (SXE). Deviations from crystalline GaN, in particular in the conduction band, are dramatic. Employing the orbital character and elemental specificity of the SXE/SXA spectroscopies, we identify a charge transfer from the N atoms at the valence band maximum, reducing the overlap with the wavefunction in conduction band minimum, as the main factor limiting the optical efficiency of GaAs1-xNx alloys. Moreover, a k-conserving process of resonant inelastic x-ray scattering involving the L1 derived valence and conduction states is discovered.Comment: 3 pages, physica status solidi (Rapid Research Notes), in pres

    The importance of the smoking factor in personalized complex pharmacotherapy of ischemic heart disease with the use of metabolic correctors

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    The work is devoted to the study of the significance of the smoking factor in the realization of potentially positive cardiocytoprotective properties of metabolic correctors in the complex therapy of ischemic heart disease (IHD). A randomized study of 160 patients with stable angina pectoris was performed, 60 of them were smoking and 100 of them were non-smokin

    Impact ionization fronts in Si diodes: Numerical evidence of superfast propagation due to nonlocalized preionization

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    We present numerical evidence of a novel propagation mode for superfast impact ionization fronts in high-voltage Si p+p^+-nn-n+n^+ structures. In nonlinear dynamics terms, this mode corresponds to a pulled front propagating into an unstable state in the regime of nonlocalized initial conditions. Before the front starts to travel, field-ehanced emission of electrons from deep-level impurities preionizes initially depleted nn base creating spatially nonuniform free carriers profile. Impact ionization takes place in the whole high-field region. We find two ionizing fronts that propagate in opposite directions with velocities up to 10 times higher than the saturated drift velocity.Comment: 3 pages, 4 figure

    Age-related features of the pathogenesis of ischemic heart disease and sensitivity of patients’ DNA to cytoprotectors

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    The high prevalence of coronary heart disease (CHD) and the increase in mortality from this nosology among patients of older age groups determine the urgency of the problem of improving the provision of medical care to this category of patients. This research is devoted to the study of the effect of cytoprotective therapy on the course of coronary artery disease in elderly patients in terms of its necessity and feasibilit

    ФИНАНСОВЫЙ УЧЕТ ЭТАПОВ ФОРМИРОВАНИЯ СТОИМОСТИ ЖИЛИЩНО-КОММУНАЛЬНЫХ УСЛУГ

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    In the article the features of the accounting of costs and expenses for the provision of utility services are considered, and the formation of recording the cost of housing and communal services, and on this basis the order of the stages of formation of accounting cost of housing and communal services of municipal enterprises is proposed.В статье рассматриваются особенности учета затрат и расходов на оказание жилищно-коммунальных услуг, формирования и отражения в учете себестоимости жилищно-коммунальных услуг и на этой основе предлагается порядок финансового учета этапов формирования стоимости жилищно-коммунальных услуг муниципальных предприятий
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