1,721,047 research outputs found
Procedimento per la sintesi di derivati dell'acido zosterico
No full textForma oggetto della presente invenzione un
procedimento per la sintesi di derivati dell’acido
zosterico aventi attività anti-vegetativa
Characterization of Lactobacillus fermentum bacteriophage Z63-B2
No full textThis communication reports physiologic and structural characteristics of phage Z63-B2 active on Lactobacillus fermentum strain ATCC 9338; a comparison with phage Z63-B1, previously isolated from the same kind of environment (sourdoughs for bread-making) was discussed. Z63-B2 showed a multiplicative cycle with a burst size of 100 PFU per infectious centre and a latent period of 150 min. Its electrophoretical profile of proteins differed from that of phage Z63-B1 only for one minor protein. DNA fragments obtained with different Restriction enzymes resulted very similar and a high homology between the viruses was confirmed by hybridization tests. Two phages prove to be Variants each other. Resistant clones to phage Z63-B2 isolated after lysis of the host strain, showed costantly a different cell morphology and colony growth in comparison with the original host strain; however resistance was not imputable to a lysogenic state
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
PAOLO MURIALDI E LE PAGINE CULTURALI DEL 'GIORNO': LETTERATURA E ARTE NEL MONDO(1960-67)
No full textThe first part of this research focuses on Paolo Murialdi as a journalist, the second one considers his cultural choices for the newspaper ‘Il Giorno’, in particular for the special weekly page Letteratura e arte nel mondo and for the monthly supplement ‘Giornolibri’. Murialdi, well known as the major historian of Italian journalism, was born in 1919 in Genoa, where he started his career at ‘Il Secolo XIX’. After the Second World War Murialdi settled in Milan and changed several editors: he worked for ‘Milano Sera’, ‘L’Avanti!’, as well as for ‘L’Umanità’ and for ‘Corriere della Sera’. In 1956 Murialdi accepted the role of editor in chief in the brand new newspaper ‘Il Giorno’. He was initially responsible for political information but, from 1960 till 1967, he also supervised cultural sections: he structured Letteratura e arte nel mondo and ‘Giornolibri’, published from 1963 to 1966. Murialdi’s special page was quite different from the traditional Italian Third page: the absence of the Elzevir, the accessible language, new cultural and critical reports and several book reviews were its main features. Thanks to young and still unknown collaborators, critics and writers, such as Pietro Citati and Alberto Arbasino, but also to historians and experts like Brunello Vigezzi, Marco Valsecchi, Enzo Forcella, Roberto De Monticelli, Pietro Bianchi and many others, Murialdi designed cultural pages concerned with literature, philosophy, history, arts and mass culture
Variations on the Author
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
No full textWe 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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