1,720,958 research outputs found
Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textWiklund, Helena, Glover, Adrian G., Johannessen, Per J., Dahlgren, Thomas G. (2009): Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic. Zoological Journal of the Linnean Society 155 (4): 774-785, DOI: 10.1111/j.1096-3642.2008.00469.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00469.
Figure 1 in Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textFigure 1. Map showing collection sites in Sweden and Norway for the new species.Published as part of Wiklund, Helena, Glover, Adrian G., Johannessen, Per J. & Dahlgren, Thomas G., 2009, Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic, pp. 774-785 in Zoological Journal of the Linnean Society 155 (4) on page 775, DOI: 10.1111/j.1096-3642.2008.00469.x, http://zenodo.org/record/544531
Figure 6. Diagram showing Kimura 2 in Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textFigure 6. Diagram showing Kimura 2 Parameter (K2P)-distances between congeneric species in four chrysopetalid genera, for two nuclear genes (18S, 28S) and two mitochondrial genes (16S, cytochrome c oxidase subunit I (COI)).Published as part of Wiklund, Helena, Glover, Adrian G., Johannessen, Per J. & Dahlgren, Thomas G., 2009, Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic, pp. 774-785 in Zoological Journal of the Linnean Society 155 (4) on page 781, DOI: 10.1111/j.1096-3642.2008.00469.x, http://zenodo.org/record/544531
Figure 7 in Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textFigure 7. Vigtorniella ardabilia, molecular phylogenetic analyses of four genes with nine chrysopetalid taxa, and two hesionids as outgroup: (A) majority rule consensus tree from the Bayesian analyses with posterior probability /bootstrap values from the analyses in MrBayes/Maximum Likelihood respectively; (B) majority rule consensus tree with bootstrap values from the parsimony analyses in PAUP.Published as part of Wiklund, Helena, Glover, Adrian G., Johannessen, Per J. & Dahlgren, Thomas G., 2009, Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic, pp. 774-785 in Zoological Journal of the Linnean Society 155 (4) on page 782, DOI: 10.1111/j.1096-3642.2008.00469.x, http://zenodo.org/record/544531
Figure 3 in Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textFigure 3. Vigtorniella ardabilia sp. nov., specimen from whale-fall in Sweden. SEM micrographs of (A) head region dorsal view, (B) head region ventral view, (C) fine neuropodial falcigers from segment 2, (D) neuropodial falcigers from mid-body region, and (E) notopodial spine. Scale bars in (A) and (B) are 150 Mm, in (C) 7.5 Mm, in (D) 15 Mm and in (E) 6 Mm.Published as part of Wiklund, Helena, Glover, Adrian G., Johannessen, Per J. & Dahlgren, Thomas G., 2009, Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic, pp. 774-785 in Zoological Journal of the Linnean Society 155 (4) on page 778, DOI: 10.1111/j.1096-3642.2008.00469.x, http://zenodo.org/record/544531
Figure 5 in Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic
No full textFigure 5. Vigtorniella spp. Haplotype network of cytochrome c oxidase subunit I (COI). Each large circle represents a sequence from an individual of Vigtorniella ardabilia that has been collected in Sweden (white) or Norway (grey). Black circles represent V. flokati, collected in the Pacific Ocean, three specimens sampled sharing the same haplotype. Letters in circles, A-G, represent haplotypes of V. ardabilia sampled in this study (Table 1). Each line represents a mutation and small empty circles are inferred haplotypes not present in the current study.Published as part of Wiklund, Helena, Glover, Adrian G., Johannessen, Per J. & Dahlgren, Thomas G., 2009, Cryptic speciation at organic-rich marine habitats: a new bacteriovore annelid from whale-fall and fish farms in the North-East Atlantic, pp. 774-785 in Zoological Journal of the Linnean Society 155 (4) on page 780, DOI: 10.1111/j.1096-3642.2008.00469.x, http://zenodo.org/record/544531
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
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