1,720,970 research outputs found
Fig. 4 in A review of the genus Obelostreptus Attems, 1909 (Diplopoda, Spirostreptida, Spirostreptidae) with the description of a new species from Kenya
No full textFig. 4. Obelostreptus nakitawa: (A) first pair of legs of male, anterior view; (B) left gonopod without telopodite, posterior view; (C) left telopodite, posterior view; (D) drawing of right telopodite, anterior view; (E) drawing of gonopods, right without telopodite, anterior view; (F) right vulva, lateral view. Scale bars = 100µm. Abbreviations: ant – antetorsal process, lav – lobe of aboral valve, lb – lobe, me – metaplica, op – opercule, pp – primary posttarsal process, pr – proplica, slm – solenomerite, tp – telopodite.Published as part of Mwabvu, T. & VandenSpiegel, D., 2015, A review of the genus Obelostreptus Attems, 1909 (Diplopoda, Spirostreptida, Spirostreptidae) with the description of a new species from Kenya, pp. 51 in African Invertebrates 56 (1) on page 58, DOI: 10.5733/afin.056.0106, http://zenodo.org/record/766181
Obelostreptus acifer Attems 1909
No full textObelostreptus acifer Attems, 1909 Obelostreptus acifer Attems, 1909 b: 412, Taf. 18. Abb. 14–16 (D); 1914: 125 (+D); Manfredi 1936: 257 (C); Krabbe 1982: 417. Material examined: Syntype ♂: ETHIOPIA: Abera (Djam-Djam), leg. Neumann, 20.xii.1900 (MV 2476). Remarks: No new material of O. acifer was available at the time of the study. However, based on material studied, the description of the species and illustrations of the gonopods are accurate.Published as part of Mwabvu, T. & VandenSpiegel, D., 2015, A review of the genus Obelostreptus Attems, 1909 (Diplopoda, Spirostreptida, Spirostreptidae) with the description of a new species from Kenya, pp. 51 in African Invertebrates 56 (1) on page 53, DOI: 10.5733/afin.056.0106, http://zenodo.org/record/766181
Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)?
No full textMwabvu, T., Lamb, J., Slotow, R., Hamer, M., Barraclough, D. (2015): Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)? African Invertebrates 56 (3): 651, DOI: 10.5733/afin.056.0311, URL: http://www.bioone.org/doi/10.5733/afin.056.031
Fig. 2 in Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)?
No full textFig. 2. Saturation plot of a dataset comprising 520 nucleotides of the mitochondrial cytochrome c oxidase 1 gene created in DAMBE (Xia & Xie 2001). The GTR model was used to calculate genetic distance in substitutions per site; s – transition, v – transversion.Published as part of Mwabvu, T., Lamb, J., Slotow, R., Hamer, M. & Barraclough, D., 2015, Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)?, pp. 651 in African Invertebrates 56 (3) on page 656, DOI: 10.5733/afin.056.0311, http://zenodo.org/record/791463
Obelostreptus proximospinosus Krabbe 1982
No full textObelostreptus proximospinosus Krabbe, 1982 Fig. 2A–D Obelostreptus proximospinosus Krabbe, 1982: 419. Abb. 267. Material examined: Holotype ♂: TANZANIA: Usambara Mts. Amani, at Dodwe River, in rotten wood, c. 1000 m, 31.vii.1974, I. Bødker-Enghoff & H. Enghoff (ZMUC). Additional material: numerous further specimens from Amani (ZMUC). Remarks: Examination of many specimens (including the holotype) housed in the ZMUC revealed that the drawing of the gonopod coxite made by Krabbe (1982) is slightly erroneous. According to Krabbe, the distal part of the coxite forms a unique lobe, but our observations clearly show that this part of the coxite is bilobed (Fig. 2B). Other than that, the description and drawings are adequate. SEM illustrations of first leg and gonopod are given in Fig. 2. Females slightly longer and wider than males; vulva poorly sclerotized, located in a pouch behind coxosternite of second legs. Valves smooth with an elongated apical appendix (Fig. 2D).Published as part of Mwabvu, T. & VandenSpiegel, D., 2015, A review of the genus Obelostreptus Attems, 1909 (Diplopoda, Spirostreptida, Spirostreptidae) with the description of a new species from Kenya, pp. 51 in African Invertebrates 56 (1) on page 54, DOI: 10.5733/afin.056.0106, http://zenodo.org/record/766181
Fig. 3 in Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)?
No full textFig. 3. Bayesian inference tree based on an analysis of 520 nucleotides of the mitochondrial cytochrome c oxidase 1 gene showing relationships between Spirostreptida species and outgroups (Julida and Callipodida species). Numbers adjacent to taxon names are GenBank accession numbers, and indicate sequences that were downloaded from the NCBI Genbank. This tree was congruent in structure with maximum parsimony and neighbour-joining analyses of the same dataset. Nodal support values are indicated as (posterior probability / maximum parsimony bootstrap / neighbour-joining bootstrap).Published as part of Mwabvu, T., Lamb, J., Slotow, R., Hamer, M. & Barraclough, D., 2015, Do cytochrome c oxidase 1 gene sequences differentiate species of spirostreptid millipedes (Diplopoda: Spirostreptida: Spirostreptidae)?, pp. 651 in African Invertebrates 56 (3) on page 657, DOI: 10.5733/afin.056.0311, http://zenodo.org/record/791463
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
- …
