1,355,192 research outputs found
The Centenary of the Birth of Professor Georgy I. Dorofeev
No full textThe article is devoted to one of the leaders of the Leningrad school of gastroenterologists of the second half of the last century. For almost two decades, he headed the oldest department of the Military Medical Academy — the Department of Hospital Therapy, turning it into one of the famous gastroenterological centers of the country of that period. The author offers the reader the complete biography of this famous scientist. One of the most important scientific merits of G.I. Dorofeev is the creation of an original scientific internist school. Many followers of it headed and continue to head the leading scientific centers of the country
Sinomenium cantalense Dorofeev 1955
No full textSinomenium cantalense (E.M. Reid) Dorofeev Trudy Botanicheskogo Instituta Akademii Nauk SSSR.Ser. 1. Flora i SistematikaVyssikh Rastenii. Acta Instituti Botanici Academiae Scientiarum URPSS 11: 129 (1955). Menispermum cantalense E.M. Reid, Bulletin de la Société Géologique de France, sér. IV, 20: 66; pl. 3, figs 24, 25 (1920). Sinomenium militzeri Kirchheimer, Botanisches Archiv 44: 384 (1943). Sinomenium dielsii Szafer, Rozprawy Wydzial Matamatyczno-Przyroniczy PAU, Dzial B : Nauki Biologiczne, 72: 96; pl. 8, figs 15, 16, 21 (1947). Menispermum taylori Chandler, The Lower Tertiary Floras of Southern England IV A summary and survey of findings in the light of recent botanical observations: 111; pl. 2, fig. 16 (1964). Wardenia davisi Chandler, The Lower Tertiary Floras of Southern England I Palaeocene floras. London Clay flora (supplement): 158; pl. 16, fig. 8 (1961). — Wardensheppeya davisii (Chandler) Eyde, Taxon 19: 650 (1970). Wardenia poolensis Chandler, The Lower Tertiary Floras of Southern England II Flora of the Pipe-clay Series of Dorset (Lower Bagshot): 62; pl. 7, figs 21, 22 (1962). — Wardensheppya poolensis (Chandler) Eyde, Taxon 19: 650 (1970). Wardenia marginata Chandler, The Lower Tertiary Floras of Southern England III Flora of the Bournemouth Beds; the Boscombe, and the Highcliff Sands: 84; pl. 12, figs 17- 22 (1963). — Wardensheppeya marginata (Chandler) Eyde, Taxon 19: 650 (1970). Sinomenium sibiricum Dorofeev, in Takhtajan, Magnolophyta Fossilia URSS I: 96; pl. 117, figs 3-5, 7 (1974).Published as part of Jacques, Frédéric M. B., Yu-Sheng Liu, Christopher, Martinetto, Edoardo & Zhou, Zhe-Kun, 2011, Revised taxonomy of selected fossil endocarp species in the Menispermaceae using a morphometric approach, pp. 177-197 in Geodiversitas 33 (1) on pages 192-193, DOI: 10.5252/g2011n1a8, http://zenodo.org/record/459687
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Russian in Crimea: from Pluricentricity to Monocentricity
No full textThe paper examines the changes which are underway in the Crimean variety of Russian. Until the events of last year (2014), which saw the “annexation” and/or “re-unification” of Crimea to Russia, the Russian used in the peninsula was subject to a gradual process of divergence from standard Russian. The Russian of Crimea could have been defined as a non-dominant variety of a pluricentric language. The sudden change in language policy and the reinforced prestige of Russian as the main, although not the sole, official language of the peninsula is generating new changes in its status and usage. One can assist at an evident shift between a former pluricentricity of Crimean Russian (C-Russian), which was in many respects not really differentiated from its Ukrainian Russian (U-Russian) counterpart, towards a monocentric model steered by the centre
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
On static analysis of finite repetitive structures by discrete Fourier transform
No full textFunctional solutions for the static response of beam- and plate-like repetitive lattice structures are obtained by discrete Fourier transform. The governing equation is set up as a single operator form with the physical stiffness operator acting as a convolution sum and containing a matrix kernel, which relates to the mechanical properties of the lattice. Boundary conditions do not affect the equation form, and are taken into account at a subsequent stage of the analysis. The technique of virtual load and substructure is proposed to formally close the repetitive lattice into a cyclic structure, and to assure the equivalence of responses of the modified cyclic and original repetitive lattices. A discrete periodic Green's function is introduced for the modified structure, and the final displacement solutions are written as convolution sums over the Green's function and the actual external and virtual loads. Several example problems illustrate the approach
Characteristic solutions for the statics of repetitive beam-like trusses
No full textThis paper concerns two major points: (1) decomposition of functional solutions for the static response of repetitive pin-jointed beam trusses under end loadings into spectrum of elementary function modes; and (2) a mathematical classification of the last. The governing finite difference equation of statics is written as a single matrix form by considering the stiffness matrix of a representative substructure. It is shown that its general solution can be spanned by only 2R individual modes, where R is the number of degrees of freedom for a typical nodal pattern inside the truss. These modes are divided into two primary classes: transfer and localised. A unique set of "canonical" transfer solutions is found by a method based on Jordan decomposition of the transfer matrix. Also, a technique of constructing transfer matrices for a wide class of trusses is presented. The canonical modes can be further subclassified as exponential, polynomial and quasi-polynomial. The complete set of 2R canonical transfer and localised modes uniquely represents the basic structural response behaviour, and gives a basis for the characteristic (non-harmonic) expansion of static solutions. Several illustrative examples are considered
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
- …
