1,720,957 research outputs found
La sinergia tra Università e impresa nel progetto architettonico, di restauro e miglioramento sismico di Palazzo Arcivescovile e Bongiovanni in Camerino
Going Beyond Counting First Authors in Author Co-citation Analysis
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
Archaeometric research on decorated bricks of Tol-e Ajori monumental gate (6th century BC), Fars, Iran: New insight into the glazes
The archaeological excavations ongoing since 2011 at Tol-e Ajori – located 3.5 km NW of the Persepolis Terrace – discovered an Achaemenid monumental gate dating back to the second half of the 6th century BC. Thousands of glazed clay bricks, flat or in relief with decorative and figurative motifs, which are very similar to the bricks of Babylon’s Ishtar Gate, were unearthed from Tol-e Ajori. As the glazed surfaces of the bricks were seriously degraded, due to the long period of burial, a set of non-invasive investigations was first carried out to identify the original hues, also in situ, using digital microscopy, portable energy dispersive X-ray fluorescence (ED-XRF) and visible reflectance spectrometry (Vis-RS). Minute samples were also investigated by micro-X-ray fluorescence (μ-XRF), polarised light microscopy (PLM), scanning electron microscopy with energy-dispersive X-ray spectroscopy (ESEM-EDS), and micro-Raman spec-troscopy. The occurrence of brizziite (sodium antimonate, NaSbO 3) and calcium antimonate (CaSb 2 O 6) as white opacifiers embedded in the lime-alkali glaze was evinced. Lead antimonate was also shown to be a yellow opacifier while cobalt and copper occur as colouring agents in the blue glazes. The greenish hues were obtained by mixing Cu 2+ with the yellow opacifier. These results are coherent with the general knowledge available on the Iron Age glaze production in the ancient Near East. Moreover, the iconographical and archaeological features suggested close ties between the glazed bricks from Tol-e Ajori monumental gate and the Ishtar Gate. We also considered the similarities and differences between glaze technology evidenced in Tol-e Ajori and important archaeological sites in Iran and Iraq. In addition, the source of Co in the glazes from Tol-e Ajori bricks and other Achaemenid glazed bricks from Susa and the Persepolis Terrace is discussed
Variations on the Author
“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
We 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
Advances in characterization of colourful residues unearthed in Persepolis West craft zone using microscopic and spectroscopic techniques
The microstructure and chemical composition of blue and green pellets, coloured lump pigments and a metal scrap excavated in Persepolis West (Fars, Iran), by the Iranian-Italian Joint Archaeological Mission in Fars in 2008–09, were investigated to clarify their origin and production techniques. The Persepolis West urban area has its eastern limit about five hundred meters away from the Persepolis Terrace and extends for about 1 km in a westward direction. Due to the presence in this area of various kilns and other remains, the existence of a craft zone connected with the construction of imperial and élite buildings in Persepolis was proposed. The colourful residues were submitted to integrated investigations using portable X-ray fluorescence spectrometry, digital and polarized light microscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy, X-ray diffraction, ATR-FTIR and Raman spectroscopy. The integrated analyses allowed to identify azurite, malachite, Egyptian blue, glauconite, yellow and red ochre with hematite, magnetite and goethite. Proteinaceous material was detected only in one red lump. These pigments are in accordance with the palette used to paint the palaces of the Persepolis Terrace, thus supporting the hypothesis that in Persepolis West craft zone, there was a laboratory for production of pigments. The microscopic features of the lumps and their peculiar shape confirmed a local manufacturing process. Moreover, the diopside presence related to the Egyptian blue production, as well as the discovery of a bronze scrap with a crust of Egyptian blue also suggested that this pigment was manufactured locally
Dispelling the Myths Behind First-author Citation Counts
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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