2,284 research outputs found

    Speciation Has a Spatial Scale That Depends on Levels of Gene Flow

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    Наказне провадження як спрощений вид цивільного судочинства

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    Кісель В. Й. Наказне провадження як спрощений вид цивільного судочинства / В. Й. Кісель // Методологічні засади вдосконалення цивільного процесуального права : матеріали Міжнар. наук.-практ. конф. до 150-річчя від дня народження Є. В. Васьковського (8 квітня 2016 р.) / уклад.: І. В. Андронов, Н. В. Волкова, О. В. Сатановська. – Одеса : Юрид. л-ра, 2016. - С. 58-60

    Integrating ecology into macroevolutionary research

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    On 9 March, over 150 biologists gathered in London for the Centre for Ecology and Evolution spring symposium, ‘Integrating Ecology into Macroevolutionary Research’. The event brought together researchers from London-based institutions alongside others from across the UK, Europe and North America for a day of talks. The meeting highlighted methodological advances and recent analyses of exemplar datasets focusing on the exploration of the role of ecological processes in shaping macroevolutionary patterns

    Spin 1/2 Particle with Two Masses in External Magnetic Field

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    Equation for spin 1/2 particle with two mass states is investigated in presence of magnetic field. The problem reduces to a system of 4 linked 2-nd order differential equations. After diagonalization of the mixing term, separate equations for four different functions are derived, in which the spectral parameters coincide with the roots of a 4-th order polynomial. Solutions are constructed in terms of confluent hypergeometric functions; four series of energy spectrum are found. Numerical study of the spectra is performed. Physical energy levels for the two mass fermion differ from those for the ordinary Dirac fermion

    LINGUISTIC AND SOCIAL ASPECTS OF NAME GIVING MOTIVATION

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    Olesya V. Kisel[1]Natalya N. Zerkina[2]Yuliya A. Savinova [3]Tatyana Y. Zalavina[4]Natalya V.Kozhushkova[5]Vladimir V. Mikhaylov[6] Abstract:  The article deals with the problem of influence of social factors on the name giving process with taking into account their motivation. The authors carry out a survey by means of the questionnaire, specify and prove the existing theory of social origin of name giving process motivation. Onyms are considered as linguistic units, and the process of changing their semantic structure under the influence of their social factors is studied.  For detailed studying of the subject, a complex analysis was carried out, which includes such techniques as comparison, classification and evaluation. The research is relevant in the linguistic, social, national and cognitive aspects, as it demonstrates an interaction between language and society. As a result, social motives of name giving process were classified that determine future development of anthroponymicon.Keywords: onym; name giving process; onomastic; social motives; onomastic universalia; anthroponym; national motivation; name giving; religious motivation; ideological motivation.[1] PhD in Linguistics, Associate Professor, Foreign Languages for Engineering Chair Institute of Humanities Nosov Magnitogorsk State Technical University[2] PhD in Linguistics, Associate Professor, Foreign Languages for Engineering Chair Institute of Humanities Nosov Magnitogorsk State Technical University[3]PhD in Pedagogy, Associate Professor, Department of Foreign Languages for Engineering Chair Institute of Humanities Nosov Magnitogorsk State Technical University[4] PhD in Linguistics, Associate Professor, Foreign Languages for Engineering Chair, Institute of Humanities, Nosov Magnitogorsk State Technical University,[5] PhD in Linguistics, Associate Professor, Department of Sociology, Document Science and Archive Science, Institute of Humanities, Nosov Magnitogorsk State Technical University[6] PhD in Pedagogy, Associate Professor, Department of Foreign Languages for Engineering Chair Institute of Humanities Nosov Magnitogorsk State Technical Universit

    Isolation of Flow and Nonflow Correlations by Two- and Four-Particle Cumulant Measurements of Azimuthal Harmonics in sNN=\sqrt{s_{_{\rm NN}}} = 200 GeV Au+Au Collisions

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    A data-driven method was applied to measurements of Au+Au collisions at sNN=\sqrt{s_{_{\rm NN}}} = 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Δη\Delta\eta-dependent and Δη\Delta\eta-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a component of the correlation that is Δη\Delta\eta-independent, which is likely dominated by anisotropic flow and flow fluctuations. It was also found to be independent of η\eta within the measured range of pseudorapidity η<1|\eta|<1. The relative flow fluctuation was found to be 34%±2%(stat.)±3%(sys.)34\% \pm 2\% (stat.) \pm 3\% (sys.) for particles of transverse momentum pTp_{T} less than 22 GeV/cc. The Δη\Delta\eta-dependent part may be attributed to nonflow correlations, and is found to be 5%±2%(sys.)5\% \pm 2\% (sys.) relative to the flow of the measured second harmonic cumulant at Δη>0.7|\Delta\eta| > 0.7

    Centrality and transverse momentum dependence of elliptic flow of multi-strange hadrons and ϕ\phi meson in Au+Au collisions at sNN\sqrt{s_{NN}} = 200 GeV

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    We present high precision measurements of elliptic flow near midrapidity (y<1.0|y|<1.0) for multi-strange hadrons and ϕ\phi meson as a function of centrality and transverse momentum in Au+Au collisions at center of mass energy sNN=\sqrt{s_{NN}}= 200 GeV. We observe that the transverse momentum dependence of ϕ\phi and Ω\Omega v2v_{2} is similar to that of π\pi and pp, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0-30%\% and 30-80%\% collision centrality. There is an indication of the breakdown of previously observed mass ordering between ϕ\phi and proton v2v_{2} at low transverse momentum in the 0-30%\% centrality range, possibly indicating late hadronic interactions affecting the proton v2v_{2}.Comment: 7 pages and 4 figures, Accepted for publication in Physical Review Letter

    Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions

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    We present measurements of π\pi^- and π+\pi^+ elliptic flow, v2v_2, at midrapidity in Au+Au collisions at sNN=\sqrt{s_{_{\rm NN}}} = 200, 62.4, 39, 27, 19.6, 11.5 and 7.7 GeV, as a function of event-by-event charge asymmetry, AchA_{ch}, based on data from the STAR experiment at RHIC. We find that π\pi^- (π+\pi^+) elliptic flow linearly increases (decreases) with charge asymmetry for most centrality bins at sNN=27 GeV\sqrt{s_{_{\rm NN}}} = \text{27 GeV} and higher. At sNN=200 GeV\sqrt{s_{_{\rm NN}}} = \text{200 GeV}, the slope of the difference of v2v_2 between π\pi^- and π+\pi^+ as a function of AchA_{ch} exhibits a centrality dependence, which is qualitatively similar to calculations that incorporate a chiral magnetic wave effect. Similar centrality dependence is also observed at lower energies.Comment: 6 pages, 4 figure
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