Modelling of the Municipality Entrepreneurial Community Functioning Using the Methods of System Dynamics

The purpose of this research is to develop an imitation system-dynamic model for the municipality entrepreneurial network functioning. The model is implemented on an experimental level in the environment of simulation moderation Powersim Studio 7. On the one hand it gives us the opportunity to monitor the state of communications and exchange at various periods of time. On the other hand it allows to determine the architecture of links, levels and flows of exchange between network participants as well as the most effective conditions for the realization of commodity-money relations both inside and outside the network. The introduction of inside money into the entrepreneurial network is considered to be a method of exchange effectiveness increase. The parameter, reflecting their usage in the network, acts as the main regulator of exchange and at the same time it is the controlling parameter of the model. Simulation experiments result, expressed in resulting coefficients (liquidity, cooperation, exchange synchronization), allows you to assess numerically the system state at different control parameter values. It makes the designed model an effective support tool for optimizing decisions and managing a complex economic system, which is the entrepreneurial network of the municipality. © 201

Peculiarities in produced particles emission in 208Pb + Ag(Br) interactions at 158 A GeV/c

The angular structures of particles produced in 208Pb induced collisions with Ag(Br) nuclei in an emulsion detector at 158 A GeV/c have been investigated. Nonstatistical ring-like substructures in azimuthal plane of the collision have been found and their parameters have been determined. The indication on the formation of the ring-like substructures from two symmetrical emission cones - one in the forward and other in the backward direction in the center-of mass system have been obtained. The ring-like substructures parameters have been determined. The experimental results are in an agreement with I.M. Dremin idea, that mechanism of the ring-like substructures formation in nuclear collisions is similar to that of Cherenkov electromagnetic radiation.Comment: 10 pages, 7 figures, Report at the HADRON STRUCTURE'04 Conference, Smolenice, Slovakia, 30.8.-3.9.200

The entrepreneurial network simulation model for the supporting system of management decisions making at a municipal level

The article deals with a system dynamic model implemented in the AnyLogic simulation environment. It gives proof of its advantages concerning the municipality entrepreneurial network model, which was previously realised in Powersim environment. It also formulates the prospects of this investigation development. This is the working out of an information support system of management decisions making based on a Java-application. Such an application can be obtained by the simulation model exporting to Java-code by means of AnyLogic. Data warehouses, interfaces and other applications can be integrated with this application. The system obtained in this way will become even a more effective tool for the management decisions making support. © 2020 American Institute of Physics Inc.. All rights reserved.Present study was carried out under financial support of the Russian Fund of Fundamental Research grant № 19-010-00974 "Experimental institutional models of the autonomy of local communities finances in context of public confidence decreasing in forms of participation in the budget process"

Two-dimensional discrete wavelet analysis of multiparticle event topology in heavy ion collisions

The event-by-event analysis of multiparticle production in high energy hadron and nuclei collisions can be performed using the discrete wavelet transformation. The ring-like and jet-like structures in two-dimensional angular histograms are well extracted by wavelet analysis. For the first time the method is applied to the jet-like events with background simulated by event generators, which are developed to describe nucleus-nucleus collisions at LHC energies. The jet positions are located quite well by the discrete wavelet transformation of angular particle distribution even in presence of strong background.Comment: 6 pages, 6 figure

Measurement of the cosmic ray hadron spectrum up to 30 TeV at mountain altitude: the primary proton spectrum

The flux of cosmic ray hadrons at the atmospheric depth of 820 g/cm^2 has been measured by means of the EAS-TOP hadron calorimeter (Campo Imperatore, National Gran Sasso Laboratories, 2005 m a.s.l.). The hadron spectrum is well described by a single power law : S(E_h) = (2.25 +- 0.21 +- 0.34(sys)) 10^(-7)(E_h/1000)^(-2.79 +- 0.05) m^(-2) s^(-1) sr^(-1) GeV^(-1) over the energy range 30 GeV-30 TeV. The procedure and the accuracy of the measurement are discussed. The primary proton spectrum is derived from the data by using the CORSIKA/QGSJET code to compute the local hadron flux as a function of the primary proton spectrum and to calculate and subtract the heavy nuclei contribution (basing on direct measurements). Over a wide energy range E_0 = 0.5-50 TeV its best fit is given by a single power law : S(E_0) = (9.8 +- 1.1 +- 1.6(sys)) 10^(-5) (E_0/1000)^(-2.80 +- 0.06) m^(-2) s^(-1) sr^(-1) GeV^(-1). The validity of the CORSIKA/QGSJET code for such application has been checked using the EAS-TOP and KASCADE experimental data by reproducing the ratio of the measured hadron fluxes at the two experimental depths (820 and 1030 g/cm^2 respectively) at better than 10% in the considered energy range.Comment: 16 pages, 9 figures, accepted for publication in Astroparticle Physic

A study on the sharp knee and fine structures of cosmic ray spectra

The paper investigates the overall and detailed features of cosmic ray (CR) spectra in the knee region using the scenario of nuclei-photon interactions around the acceleration sources. Young supernova remnants can be the physical realities of such kind of CR acceleration sites. The results show that the model can well explain the following problems simultaneously with one set of source parameters: the knee of CR spectra and the sharpness of the knee, the detailed irregular structures of CR spectra, the so-called "component B" of Galactic CRs, and the electron/positron excesses reported by recent observations. The coherent explanation serves as evidence that at least a portion of CRs might be accelerated at the sources similar to young supernova remnants, and one set of source parameters indicates that this portion mainly comes from standard sources or from a single source.Comment: 13 pages, 4 figures, accepted for publication in SCIENCE CHINA Physics, Mechanics & Astronomy

The energy spectrum of all-particle cosmic rays around the knee region observed with the Tibet-III air-shower array

We have already reported the first result on the all-particle spectrum around the knee region based on data from 2000 November to 2001 October observed by the Tibet-III air-shower array. In this paper, we present an updated result using data set collected in the period from 2000 November through 2004 October in a wide range over 3 decades between $10^{14}$ eV and $10^{17}$ eV, in which the position of the knee is clearly seen at around 4 PeV. The spectral index is -2.68 $\pm$ 0.02(stat.) below 1PeV, while it is -3.12 $\pm$ 0.01(stat.) above 4 PeV in the case of QGSJET+HD model, and various systematic errors are under study now.Comment: 12 pages, 7 figures, accepted by Advances in space researc

On inconsistency of experimental data on primary nuclei spectra with sea level muon intensity measurements

For the first time a complete set of the most recent direct data on primary cosmic ray spectra is used as input into calculations of muon flux at sea level in wide energy range $E_\mu=1-3\cdot10^5$ GeV. Computations have been performed with the CORSIKA/QGSJET and CORSIKA/VENUS codes. The comparison of the obtained muon intensity with the data of muon experiments shows, that measurements of primary nuclei spectra conform to sea level muon data only up to several tens of GeV and result in essential deficit of muons at higher energies. As it follows from our examination, uncertainties in muon flux measurements and in the description of nuclear cascades development are not suitable to explain this contradiction, and the only remaining factor, leading to this situation, is underestimation of primary light nuclei fluxes. We have considered systematic effects, that may distort the results of the primary cosmic ray measurements with the application of the emulsion chambers. We suggest, that re-examination of these measurements is required with the employment of different hadronic interaction models. Also, in our point of view, it is necessary to perform estimates of possible influence of the fact, that sizable fraction of events, identified as protons, actually are antiprotons. Study of these cosmic ray component begins to attract much attention, but today nothing definite is known for the energies $>40$ GeV. In any case, to realize whether the mentioned, or some other reasons are the sources of disagreement of the data on primaries with the data on muons, the indicated effects should be thoroughly analyzed

Thermal Dileptons at LHC

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions of light vector mesons within hadronic many-body theory. In the intermediate-mass region thermal radiation from the Quark-Gluon Plasma, evaluated perturbatively with hard-thermal loop corrections, takes over. An important source over the entire mass range are decays of correlated open-charm hadrons, rendering the nuclear modification of charm and bottom spectra a critical ingredient.Comment: 2 pages, 2 figures, contributed to Workshop on Heavy Ion Collisions at the LHC: Last Call for Predictions, Geneva, Switzerland, 14 May - 8 Jun 2007 v2: acknowledgment include

ДИФФЕРЕНЦИРОВАННОЕ ВЛИЯНИЕ СОВМЕСТИМОСТИ ПО HLA-A, HLA-B И HLA-DR НА ВЫЖИВАЕМОСТЬ АЛЛОТРАНСПЛАНТАТА ПОЧКИ

We studied the long-term results of 532 deceased donor kidney transplantations to investigate the impact of HLA match on the survival of renal allograft. All transplants were performed in our center in 1996–2009 and moni- tored prospectively for 1–14 years. We found, the survival of 58 kidneys grafted with 0–2 mismatch for HLA- ABDR to be significantly better (Plogrank = 0,016) than the survival of the kidneys grafted with 3–6 HLA-ABDR mismatch. The full compatibility for HLA-A (n = 75) did not influence the long-term survival (Plogrank = 0,48). The absence of HLA-DR mismatch had a beneficial effect for survival of 68 kidneys (Plogrank = 0,07). Eighteen cases with the full HLA-B compatibility between graft and recipient demonstrated excellent long-term survival (Plogrank = 0,007). HLA-B compatibility influenced significantly (P = 0,042) the survival of transplanted kidney in the Cox regression model adjusted for donor and recipient age, panel-reactive antibody level, re-transplant, and immunosuppression protocol. The data obtained support the conclusion, that HLA compatibility should be one of the criteria of deceased donor kidney allocation. Для изучения влияния совместимости по HLA на выживаемость аллотрансплантата почки нами изучены отдаленные результаты 532 трансплантаций трупной почки. Все трансплантации выполнены в нашем Центре в 1996–2009 гг. и мониторированы проспективно на протяжении 1–14 лет. Мы установили, что выживаемость 58 почек, пересаженных с несовместимостью по 0–2 антигенам HLA-ABDR, была до- стоверно лучше (Plogrank = 0,016) выживаемости почек, пересаженных с 3–6 несовместимостями по HLA- ABDR. Полная совместимость по HLA-A (n = 75) не влияла на длительную выживаемость (Plogrank = 0,48). Нулевая несовместимость по HLA-DR улучшала выживаемость 68 почек (Plogrank = 0,07). Восемнадцать почек, не имевших несовместимости по HLA-B с реципиентами, которым они были пересажены, проде- монстрировали превосходную отдаленную выживаемость (Plogrank = 0,007). В регрессионной модели Кок- са с поправкой на возраст донора и реципиента, уровень предсуществующих антител, повторную транс- плантацию и схему иммуносупрессии совместимость по HLA-B достоверно влияла на выживаемость пересаженной почки (P = 0,042). Полученные результаты позволяют заключить, что совместимость по HLA должна быть одним из критериев распределения трупных почек.