324,218 research outputs found
S J. Bersina, Méroé et le monde environnant. I-VIIIe s. de notre ère, 1992
No full textSedov Alexandr Vsevolodovič. S J. Bersina, Méroé et le monde environnant. I-VIIIe s. de notre ère, 1992. In: Topoi, volume 3/1, 1993. pp. 368-369
Tatiana S. Fedorova, Peter Ulf Møller, Viktor G. Sedov & Carol Louise Urness (eds.), The Journal of Midshipman Chaplin. A Record of Bering’s First Kamchatka Expedition
No full textReview of: Tatiana S. Fedorova, Peter Ulf Møller, Viktor G. Sedov & Carol Louise Urness (eds.), The Journal of Midshipman Chaplin. A Record of Bering’s First Kamchatka Expedition, Århus: Aarhus University Press 2010 (The Beringiana Series 5), ISBN 9788779343146, 320 pp
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
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
New data about Novgorod resident Ivan Shusherin the author of the biography of Patriarch Nikon
No full textThe article deals with the biography of Ivan Shusherin, the author of the “Life” of Patriarch Nikon. Based on new archival data, it was established the previously unknown circumstances of Ivan Shusherin’s ten-year stay in exile in Novgorod and his own letters, written in extremely beautiful handwriting are discovered. Analysis of the text of the “Life” allowed the author to clarify the dating of the “Life” and the intent of this work – the most important source on the history of the Russian church in the second half of the 17th century
Radio polarization maps of shell-type SNRs - II. Sedov models with evolution of turbulent magnetic field
No full textPolarized radio emission has been mapped with great detail in several Galactic supernova remnants (SNRs), but has not yet been exploited to the extent it deserves. We have developed a method to model maps of the Stokes parameters for shell-like SNRs during their Sedov evolution phase. At first, three-dimensional structure of an SNR has been computed, by modelling the distribution of the magnetohydrodynamic parameters and of the accelerated particles. The generation and dissipation of the turbulent component of magnetic field everywhere in SNR are also considered taking into account its interaction with accelerated particles. Then, in order to model the emission, we have used a generalization of the classical synchrotron theory, valid for the case in which the magnetic field has ordered and disordered components. Finally, two-dimensional projected maps have been derived, for different orientations of SNR and of interstellar magnetic field with respect to the observer. An important effect to consider is the Faraday rotation of the polarization planes inside the SNR interior. In this paper, we present details of the model, and describe general properties of the images
The applicability of the Sedov-Taylor scaling during material removal of metals and oxide layers with pulsed CO2 and excimer laser radiation
No full textS.980-989For the removal of material with pulsed laser radiation the distance travelled by the shock or blast wave and the amount of energy released in the plasma state due to the absorption of laser radiation are determined experimentally and theoretically. The distance travelled by the blast wave is detected by schlieren photography, the released energy by monitoring the transmitted laser radiation during the removal process. The theoretical evaluation is performed by numerical simulation using a model incorporating the laser-induced vaporization process and the dynamics of the plasma state. The results obtained from the experiments and the model are compared with that of the Sedov-Taylor scaling. The removal of the oxide layer from austenitic steel is investigated with C02 laser radiation produced by a TEA and a high-power C02 laser device. For the TEA laser with fluences of 5 and 10 J cm(exp -2) 50-80 per cent of the pulse energy is released into the plasma state and the Sedov-Taylor scalin g describes the distance travelled by the blast wave in agreement with data from the experiments and the simulation. For the high-power C02 laser with a fluence of 50 J cm(exp -2), 6 per cent of the pulse energy is released into the plasma state and the Sedov-Taylor scaling does not describe the data of the simulation. The process of removal of copper and aluminium material is simulated for excimer laser radiation with fluences of 15 and 30 J cm(exp -2). For copper 15-30 per cent of the pulse energy is released into the plasma state and the Sedov-Taylor scaling is applicable. For aluminium, less than 2 per cent of the pulse energy is released into the plasma state and the Sedov-Taylor scaling is only applicable for the higher fluence.3
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
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No full textCan archives of audiovisual TV interviews be used to make authors more visible to students, and thereby reduce the learning gap between native and non-native language speakers in college classes? We examined students in a college course who learned about one scholar's ideas through watching an audiovisual TV interview (i.e., visible author format) and about another scholar's ideas through reading a formal text description (i.e., invisible author format). For the invisible author, native language speakers scored significantly higher than the non-native language speakers on a corresponding exam question (i.e., a cognitive measure), generated more words on the exam question (i.e., a motivational measure), and mentioned the author's name more often in answering the exam question (i.e., an affective measure). For the visible author, the groups did not differ on any of these measures. These findings provide evidence for the idea that making the author visible through audiovisual TV interviews can eliminate the learning gap between native and non-native language speakers. 3 Universities around the world serve students who are non-native speakers of th
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