1,724,350 research outputs found
Il Diatessaron romanesco del Vat. Lat. 7654
No full textIl volgarizzamento del cosiddetto Diatessaron romanesco, in cui si riconosce la presenza della lingua di Roma, è assemblato insieme a componimenti in versi databili al XIV secolo, nel codice pergamenaceo Val. Lat. 7654 della Biblioteca Apostolica Vaticana. La notevole estensione del volgarizzamento, che viene presentato in edizione integrale, offre una consistente angolatura per il confronto, e la riflessione sulla lingua di Roma nel Trecento
[Northern Pacific Railway Co., Engine Drawing Card, Sketch 7654]
No full textThis engine drawing card was created for Northern Pacific Railway Company, Class 12-1 1/2-44 1/4 D. Section J-12 1/4 D. Sketch 7654. Copy Spec. [field left blank]
A study of the Czernik 2 and NGC 7654 open clusters using CCD UBV photometric and Gaia EDR3 data
No full text© 2021, The Author(s), under exclusive licence to Springer Nature B.V.We analysed the open clusters Czernik 2 and NGC 7654 using CCD UBV photometric and Gaia Early Data Release 3 (EDR3) photometric and astrometric data. Structural parameters of the two clusters were derived, including the physical sizes of Czernik 2 being r= 5 ′ and NGC 7654 as 8 ′. We calculated membership probabilities of stars based on their proper motion components as released in the Gaia EDR3. To identify member stars of the clusters, we used these membership probabilities taking into account location and the impact of binarity on main-sequence stars. We used membership probabilities higher than P= 0.5 to identify 28 member stars for Czernik 2 and 369 for NGC 7654. The mean proper motion components (μαcos δ, μδ) of Czernik 2 were derived as (− 4.03 ± 0.04 , − 0.99 ± 0.05) mas yr−1 and for NGC 7654 as (− 1.89 ± 0.03 , − 1.20 ± 0.03) mas yr−1. We estimated colour-excesses and metallicities separately using (U− B) × (B− V) two-colour diagrams to derive homogeneously determined parameters. The derived E(B− V) colour excess is 0.46 ± 0.02 mag for Czernik 2 and 0.57 ± 0.04 mag for NGC 7654. [Fe/H] metallicities were obtained for the first time for both clusters, − 0.08 ± 0.02 dex for Czernik 2 and − 0.05 ± 0.01 dex for NGC 7654. Keeping the reddening and metallicity as constant quantities, we fitted PARSEC models using V× (B− V) and V× (U− B) colour-magnitude diagrams, resulting in estimated distance moduli and ages of the two clusters. We obtained the distance modulus for Czernik 2 as 12.80 ± 0.07 mag and for NGC 7654 as 13.20 ± 0.16 mag, which coincide with ages of 1.2 ± 0.2 Gyr and 120 ± 20 Myr, respectively. The distances to the clusters were calculated using the Gaia EDR3 trigonometric parallaxes and compared with the literature. We found good agreement between the distances obtained in this study and the literature. Present day mass function slopes for both clusters are comparable with the value of Salpeter (1955), being X= − 1.37 ± 0.24 for Czernik 2 and X= − 1.39 ± 0.19 for NGC 7654
Linked collectors and determiners for: Colección de Mamíferos del Museo de Historia Natural C.J. Marinkelle.
No full textNatural history specimen data linked to collectors and determiners held within, "Colección de Mamíferos del Museo de Historia Natural C.J. Marinkelle". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/4cb6c022-7654-4901-bb3d-e7028a26b1ac">https://bionomia.net/dataset/4cb6c022-7654-4901-bb3d-e7028a26b1ac</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/4cb6c022-7654-4901-bb3d-e7028a26b1ac">https://gbif.org/dataset/4cb6c022-7654-4901-bb3d-e7028a26b1ac</a>. Formatted as a Frictionless Data package
Four-Color and Hβ Photometry of Stars in NGC 7654 and M25
Get PDFFour-color and Hβ photometry has been obtained of stars in the galactic clusters NGC 7654 and M25. An analysis of these data shows variable extinction in both clusters. The distance modnlus of NGC 7654 is found to be 10m.99 ± 0.2 and that of M25 is 8m.68 ± 0.1
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Get PDFWe 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
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