Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations

Abstract We study the effect of electromagnetic ion cyclotron (EMIC) waves on the loss and pitch angle scattering of relativistic and ultrarelativistic electrons during the recovery phase of a moderate geomagnetic storm on 11 October 2012. The EMIC wave activity was observed in situ on the Van Allen Probes and conjugately on the ground across the Canadian Array for Real-time Investigations of Magnetic Activity throughout an extended 18 h interval. However, neither enhanced precipitation of \u3e0.7 MeV electrons nor reductions in Van Allen Probe 90° pitch angle ultrarelativistic electron flux were observed. Computed radiation belt electron pitch angle diffusion rates demonstrate that rapid pitch angle diffusion is confined to low pitch angles and cannot reach 90°. For the first time, from both observational and modeling perspectives, we show evidence of EMIC waves triggering ultrarelativistic (~2-8 MeV) electron loss but which is confined to pitch angles below around 45° and not affecting the core distribution. Key Points EMIC wave activity is not associated with precipitation of MeV electrons EMIC waves do not deplete the ultra-relativistic belt down to 90° EMIC waves cause loss of low pitch angle electrons with energies ~2-8 MeV

Shareholder Value of the Company and Financial Statements: Econometric Estimation of Value Creation Drivers

In this work to evaluate the relationship between financial reporting indicators and shareholder value on the example of the Russian companies from seven sectors of the economy linear multiple regression model and classical least squares methods has been used. The results depict that it is expected that financial reporting indicators are one of the dominant determinants of evaluating the effectiveness of financial investment decisions. Also, it is shown that the financial drivers-financial leverage, return on assets, dividend payments, and the EVA driver – invested capital-are positively correlated with the company's shareholder value. The results represent that the size of a company has a positive impact on its shareholder value. It was found that the level of disclosure is negatively correlated with the company's shareholder value. Due to the fact that the article uses data from the financial statements of the 85 Russian companies for 2018 to measure the relationship between three groups of drivers and the company's shareholder value is an innovative work that can be used in scientific and practical activities by owners and investors of companies in order to improve the financial reporting of companies and make investment decisions

Methodological approaches to the assessing of the quality of audit sampling

© 2014, Mediterranean Journal of Social Sciences. All right reserved. The main objective of this study is to develop methodology of assessing the quality of the audit sampling. The use of the sampling leads to existence of the risks when an auditor's conclusion, made on the basis of a total sample may be different from the conclusion drawn on the basis of the audit procedures carried out in respect of all population elements. To solve this problem we have created the theoretical model, illustrating the following: the relationship between the audit risk and the methods of the unit’s selection; the relationship between the efficiency of the audit, evaluation of internal control and audit scope; the use of sampling in the audit for internal control testing and substantive procedures

Organization of innovative project management on the base of multimode modeling of probabilities mixture of labor processes

© 2014, Mediterranean Center of Social and Educational Research. All rights reserved. In this study we suggest an approach to the organization of innovative projects management based on multimode modeling of probabilities mixture of labor processes. The proposed model allows managers to optimize the control actions influence on separate labor processes for achieving the innovative project result in the minimum time. Organization of management on the basis of the proposed model minimizes the risks of management bureaucracy and labor processes uncontrollability

Initial consolidation of financial statements of Russian companies: Actual issues

© 2016 Taylor & Francis Group, London.Consolidation of financial statements is a complex process of preparing a report on the overall financial performance of group of companies. We described terminological differences between IFRS and Russian accounting practices, including “financial statements”, “subsidiary”, and “non-controlling interest” terms. We studied different approaches to the goodwill calculation, used by Russian companies. In this study, we described actual issues of investment in subsidiary cancelation, the evaluation of the identifiable assets acquired, and liabilities assumed in the initial consolidation of financial statements of Russian companies

Relationship between financial indicators of a company and the ERP-system implementation costs

© 2014, Mediterranean Center of Social and Educational Research. All rights reserved. The article investigates the issues of implementation of ERP-systems in large Russian companies. The authors put forward and substantiated the hypothesis about the positive impact of implementation of ERP-systems in the company's growth. For the purposes of this study, 30 large Russian companies that had implemented SAP R/3 o;r SAP ERP modules have been observed. Obtained result shows, that implementation of the ERP-system or its individual modules makes a positive impact in the company's growth, measured by the total assets indicator

Risk-oriented technique of real investments management: Consepts

© 2014, Mediterranean Center of Social and Educational Research. All rights reserved. One of the main objectives of real investment management is increasing in company’s revenues and market value. Long time lag of income from investments, the scale of investments, and a high level of uncertainty in their implementation makes the questions of project risk management actual. We focused on systematization of methods to measure, report and manage project risks. The paper suggests the concepts of risk-oriented methodology of project risk management. We assumed similar results ranking of investment projects in terms of risks, using Monte Carlo simulation and the fuzzy sets theory for risk assessment. In this study, was formed the empirical base, including investment projects of Russian pharmaceutical companies. The obtained results confirmed our hypothesis

Key performance indicators in corporate finance

© 2015, Asian Social Science. All rights reserved. The relevance of the study caused by the necessity to assess the impact of KPI system for growth of shareholders welfare and the satisfaction of the interests of other stakeholders. KPI concept suggests widespread use of these factors as measures of internal and external efficiency, as well as an incentive for management to meet the strategic objectives of the company. The article examines the influence of key performance indicators on the value of Russian companies. We used the following tools of econometric research: content analysis and econometric modeling to conduct the study

On the storm‐time evolution of relativistic electron phase space density in Earth's outer radiation belt

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98813/1/jgra50151.pd

Competing source and loss mechanisms due to wave-particle interactions in Earth’s outer radiation belt during the 30 September to 3 October 2012 geomagnetic storm

Abstract Drastic variations of Earth’s outer radiation belt electrons ultimately result from various competing source, loss, and transport processes, to which wave-particle interactions are critically important. Using 15 spacecraft including NASA’s Van Allen Probes, THEMIS, and SAMPEX missions and NOAA’s GOES and POES constellations, we investigated the evolution of the outer belt during the strong geomagnetic storm of 30 September to 3 October 2012. This storm’s main phase dropout exhibited enhanced losses to the atmosphere at L*\u3c 4, where the phase space density (PSD) of multi-MeV electrons dropped by over an order of magnitude in1 MeV electrons and energetic protons, SAMPEX \u3e1 MeV electrons, and ground observations of band-limited Pc1-2 wave activity, we show that this sudden loss was consistent with pitch angle scattering by electromagnetic ion cyclotron waves in the dusk magnetic local time sector at 3\u3c L*\u3c 4. At 4\u3c L*\u3c 5, local acceleration was also active during the main and early recovery phases, when growing peaks in electron PSD were observed by both Van Allen Probes and THEMIS. This acceleration corresponded to the period when IMF Bz was southward, the AE index was \u3e300 nT, and energetic electron injections and whistler-mode chorus waves were observed throughout the inner magnetosphere for \u3e12 h. After this period, Bz turned northward, and injections, chorus activity, and enhancements in PSD ceased. Overall, the outer belt was depleted by this storm. From the unprecedented level of observations available, we show direct evidence of the competitive nature of different wave-particle interactions controlling relativistic electron fluxes in the outer radiation belt