138,868 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Pantiathallites Manju Banerjee et Sutapa Dutta

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    † Pantiathallites Manju Banerjee et Sutapa Dutta, Proc. Natl. Acad. Sci. India, B 84 (3): 449 (see Banerjee & Dutta 2014). TYPE: Pantiathallites gondwanensis Manju Banerjee et Sutapa Dutta.Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 158, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/477969

    Similarities between 2D and 3D convection for large Prandtl number

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    Using direct numerical simulations of Rayleigh-B\'enard convection (RBC), we perform a comparative study of the spectra and fluxes of energy and entropy for large and infinite Prandtl numbers in two (2D) and three (3D) dimensions. We observe close similarities between the 2D and 3D RBC, in particular the kinetic energy spectrum Eu(k)k13/3E_u(k) \sim k^{-13/3}, and the entropy spectrum exhibits a dual branch with a dominant k2k^{-2} spectrum. We showed that the dominant Fourier modes in the 2D and 3D flows are very close

    Venture capital increases a startup’s chances of issuing stocks or finding a buyer

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    In contrast, angel investors spur innovation, but not commercialisation, write Supradeep Dutta and Timothy B. Folt

    Heavy quarkonia in quark gluon plasma as open quantum systems

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    Dutta N. Heavy quarkonia in quark gluon plasma as open quantum systems. Bielefeld: Universitätsbibliothek; 2013

    Pantiathallites gondwanensis Manju Banerjee et Sutapa Dutta

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    † Pantiathallites gondwanensis Manju Banerjee et Sutapa Dutta, Proc. Natl. Acad. Sci. India, B 84 (3): 449, 2014 (see Banerjee & Dutta 2014). ” Specimen No Sc. Td 386.... Type Slide numbers: Sc. Td 386 Sl. Nos. 1, 4, 19... Repository MB collection of Palaeobotany-Palynology section, Department of Botany, University of Calcutta. Type locality Tulsidabar Quary,Saharjuri Basin, Jharkhand, India. Type stratum: Shale layers between the Tulsidabar bottom (XI) and the Tulsidabar top (XII) coal seams Barakar Formation, late early Permian (late Artinskian).”Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 158, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/477969

    Vernacular names of the useful plants of north­west indian arid regions

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    Gupta Raj Kumar, Dutta B. K. Vernacular names of the useful plants of north­west indian arid regions. In: Journal d'agriculture tropicale et de botanique appliquée, vol. 14, n°10-11, Octobre-novembre 1967. pp. 402-453

    Dynamics of Network Formation Processes in the Co-Author Model

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    This article studies the dynamics in the formation processes of a mutual consent network in game theory setting: the Co-Author Model. In this article, a limited observation is applied and analytical results are derived. Then, 2 parameters are varied: the number of individuals in the network and the initial probability of the links in the network in its initial state. A simulation result shows a finding that is consistent with an analytical result for a state of equilibrium while it also shows different possible equilibria.Dynamics, Network, Game Theory, Model,Simulation, Equilibrium, Complexity
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