1,720,960 research outputs found
Amphiura grandisquama Lyman 1869
No full textAmphiura grandisquama Lyman, 1869 Material examined. Vernadsky Ridge, TTR 15, stn AT 574, 1 ind. (DBUA 001067.01); Pen Duick Escarpment, TTR 16, stn AT 600, 4 inds. (DBUA 001068.01). Ecology and distribution. In the Eastern Atlantic A. grandisquama has been recorded from Iceland south to the Azores and Cape Verde Islands at depths of 861–1635 m (Paterson 1985). In the Gulf of Cadiz it was collected from carbonate chimneys and crusts at shallower depths (508–610 m) (Fig. 7 A).Published as part of Rodrigues, Clara F., Paterson, Gordon L. J., Cabrinovic, Andrew & Cunha, Marina R., 2011, Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic), pp. 1-26 in Zootaxa 2754 on page 14, DOI: 10.5281/zenodo.27672
Amphilepis ingolfiana Mortensen 1933
No full textAmphilepis ingolfiana Mortensen, 1933 Material examined. Mercator MV, TTR 15, stn AT 569, 1 ind. (DBUA 001088.01), stn AT 575, 4 inds. (DBUA 001088.02), stn AT 576, 5 inds. (DBUA 001088.03); MSM01-03, stn 237, 1 ind. (DBUA 001089.01); Fiuza MV, TTR 12, stn AT 403, 1 inds.; Kidd MV, TTR 14, stn AT 559, 2 inds. (DBUA 001091.01); Yuma MV, TTR 16, stn AT 605, 1 ind. (DBUA 001092.01); Pen Duick Escarpment, TTR 12, stn AT 406, 1 ind. (DBUA 001090.01); TTR 16, stn AT 602, 1 ind. (DBUA 001092.02). Ecology and distribution. Amphilepis ingolfiana is a deep-sea species (957–4829 m) known to occur in the NE Atlantic from the Rockall Trough south to off North Africa (Paterson 1985). In the Gulf of Cadiz it was collected at the Moroccan margin in four mud volcanoes and in the Pen Duick Escarpment, often associated with carbonate crusts and at shallower depths (353–975 m) than previously reported (Fig. 7 F).Published as part of Rodrigues, Clara F., Paterson, Gordon L. J., Cabrinovic, Andrew & Cunha, Marina R., 2011, Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic), pp. 1-26 in Zootaxa 2754 on pages 18-19, DOI: 10.5281/zenodo.27672
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
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
Amphioplus hexabrachiatus Stohr 2003
No full textAmphioplus hexabrachiatus Stöhr, 2003 (Figs. 9–10) Material examined. Mercator MV, TTR 15, stn AT 576, 4 inds. (DBUA 001084.01); Fiuza MV, TTR 14, stn AT 566, 2 inds. (DBUA 001085.01); Kidd MV, TTR 14, stn AT 559, 2 inds. (DBUA 001085.02); Yuma MV, TTR 14, stn AT 524, 1 ind. (DBUA 001085.03); Darwin MV, TTR 16, stn AT 608, 1 ind. (DBUA 001086.01); Captain Arutyunov MV, MSM01-03, stn 195, 1 ind. (DBUA 0010.87.01); Pen Duick Escarpment, TTR 16, stn AT 600, 1 ind.. Remarks. This species is hexamerous, reproduces asexually by division, and reaches a maximum size of about 2.5 mm disk diameter. This is the first six-armed species of Amphioplus and the third species of the genus known from the deep North Atlantic. The specimens from the Gulf of Cadiz closely resemble the description and images given by Stöhr (2003). This is obviously a morphologically variable species; in the range of body sizes observed in this study, key features such as the arrangement of the oral papillae and buccal scale are often not developed. It is only in the larger specimens (disk diameter> 2 mm) where the tentacle scales develop and are conspicuous. On the dorsal surface the development of the radial shields changes from small plates only separated at the inner edge to more elongated, larger plates separated nearly the full length of the plate only contiguous at the outer end. Smaller specimens show distinct evidence of fissiparity with one side of the disk being less well developed and smaller. Ecology and distribution. This species was described from southwest of Iceland at depths of 1000–1500 m, collected by the Benthic Invertebrates of Icelandic Waters (BIOICE) programme (Stöhr 2003). In the Gulf of Cadiz (Fig. 7 E) it was collected from the Pen Duick Escarpment and mud volcanoes of the Moroccan margin usually in areas with carbonate crusts or coral framework at depths between 414 and 1390 m extending the upper bathyal limit from 1000 to 414 m. The records from Cadiz also extend considerably the known geographical range of this species.Published as part of Rodrigues, Clara F., Paterson, Gordon L. J., Cabrinovic, Andrew & Cunha, Marina R., 2011, Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic), pp. 1-26 in Zootaxa 2754 on page 18, DOI: 10.5281/zenodo.27672
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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