314 research outputs found

    Proposal for an Enhanced Optical Cooling System Test in an Electron Storage Ring

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    We are proposing to test experimentally the new idea of Enhanced Optical Cooling (EOC) in an electron storage ring. This experiment will confirm new fundamental processes in beam physics and will demonstrate new unique possibilities with this cooling technique. It will open important applications of EOC in nuclear physics, elementary particle physics and in Light Sources (LS) based on high brightness electron and ion beams.Comment: 21 pages, pdf. The number of electrons in the bunch in the example is decreased, the volume of the paper is increased, Misprints are correcte

    Calculation of the Coherent Synchrotron Radiation Impedance from a Wiggler

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    Most studies of Coherent Synchrotron Radiation (CSR) have only considered the radiation from independent dipole magnets. However, in the damping rings of future linear colliders, a large fraction of the radiation power will be emitted in damping wigglers. In this paper, the longitudinal wakefield and impedance due to CSR in a wiggler are derived in the limit of a large wiggler parameter KK. After an appropriate scaling, the results can be expressed in terms of universal functions, which are independent of KK. Analytical asymptotic results are obtained for the wakefield in the limit of large and small distances, and for the impedance in the limit of small and high frequencies.Comment: 10 pages, 8 figure

    Polymorphism of CYP2C9 gene in patients with stable angina pectoris and its significance in pathogenesis of the disease

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    A study of 90 patients with stable angina pectoris was performed. The polymerase chain reaction was used to determine the gene polymorphisms of cytochrome CYP2C9*2 C430T. The condition of DNA was studied by the method of DNA comet assa

    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

    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

    Theory of superfast fronts of impact ionization in semiconductor structures

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    We present an analytical theory for impact ionization fronts in reversely biased p^{+}-n-n^{+} structures. The front propagates into a depleted n base with a velocity that exceeds the saturated drift velocity. The front passage generates a dense electron-hole plasma and in this way switches the structure from low to high conductivity. For a planar front we determine the concentration of the generated plasma, the maximum electric field, the front width and the voltage over the n base as functions of front velocity and doping of the n base. Theory takes into account that drift velocities and impact ionization coefficients differ between electrons and holes, and it makes quantitative predictions for any semiconductor material possible.Comment: 18 pagers, 10 figure

    СОВЕРШЕНСТВОВАНИЕ АНАЛИЗА ФИНАНСОВОГО СОСТОЯНИЯ ОРГАНИЗАЦИЙ С ЦЕЛЬЮ ПРОФИЛАКТИКИ ИХ НЕПЛАТЕЖЕСПОСОБНОСТИ

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    The current regulatory analysis of the financial condition of insolvent organizations have some disadvantages also does not account the features of the analysis based on the consolidated financial statements under IFRS and GAAP. In this work on the basis of the comparative analysis of financial condition of a number of large Russian companies, calculated on their accounting statements prepared under Russian accounting standards, IFRS and GAAP, proposals are developed to improve the analysis of financial condition of insolvent institutions.Окончание. Начало в номере 12Действующий нормативный анализ финансового состояния неплатежеспособных организаций имеет ряд недостатков, кроме того, не учитывает особенностей проведения анализа на основе консолидированной финансовой отчетности, предусмотренной МСФО и GAAP. В работе на основе проведенного сравнительного анализа финансового состояния ряда крупных российских компаний, рассчитанного по их бухгалтерской отчетности составленной по российским стандартам бухгалтерского учета, МСФО и GAAP разработаны предложения по совершенствованию анализа финансового состояния неплатежеспособных организаций

    СОВЕРШЕНСТВОВАНИЕ АНАЛИЗА ФИНАНСОВОГО СОСТОЯНИЯ ОРГАНИЗАЦИЙ С ЦЕЛЬЮ ПРОФИЛАКТИКИ ИХ НЕПЛАТЕЖЕСПОСОБНОСТИ

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    The current regulatory analysis of the financial condition of insolvent organizations have some disadvantages also does not account the features of the analysis based on the consolidated financial statements under IFRS and GAAP. In this work on the basis of the comparative analysis of financial condition of a number of large Russian companies, calculated on their accounting statements prepared under Russian accounting standards, IFRS and GAAP, proposals are developed to improve the analysis of financial condition of insolvent institutions.Действующий нормативный анализ финансового состояния неплатежеспособных организаций имеет ряд недостатков, кроме того, не учитывает особенностей проведения анализа на основе консолидированной финансовой отчетности, предусмотренной МСФО и GAAP. В работе на основе проведенного сравнительного анализа финансового состояния ряда крупных российских компаний, рассчитанного по их бухгалтерской отчетности составленной по российским стандартам бухгалтерского учета, МСФО и GAAP разработаны предложения по совершенствованию анализа финансового состояния неплатежеспособных организаций
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