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FIGURE 2 in Rinorea calcicola (Violaceae), an endangered new species from south-eastern Gabon
No full textFIGURE 2. Distribution of Rinorea calcicola (red dots) including outlines of the National Parks in Gabon.Published as part of Velzen, Robin Van & Wieringa, Jan J., 2014, Rinorea calcicola (Violaceae), an endangered new species from south-eastern Gabon, pp. 267-275 in Phytotaxa 167 (3) on page 270, DOI: 10.11646/phytotaxa.167.3.5, http://zenodo.org/record/513883
FIGURE 1. Rinorea calcicola. A. Flowering branch. B in Rinorea calcicola (Violaceae), an endangered new species from south-eastern Gabon
No full textFIGURE 1. Rinorea calcicola. A. Flowering branch. B. Detail of leaf margin with teeth. C. Detail of leaf insertion with axillary bud and stipule. D. Detail of midrib area of the leaf blade from above. E. Detail of the midrib area of the leaf blade from below. F. Crosssection of leaf around the midrib G. Budscale/reduced leaf with 2 stipules at base of inflorescence. H. Bract at top of inflorescence. I. Flower. J. Sepal from outside. K. Petals from inside, most left is posterior petal, from there clockwise the other 4. L. Detail of apex of posterior petal, side view. M. Androecium from the adaxial side. N. Androecium from the abaxial side. O. Androecium from outside. P. Androecium from inside. Q. Ovary and style. R. Fruit, side view. S. Seed. A–Q based on Breteler & de Wilde 785 (WAG); R–S based on Wieringa et al. 5991 (WAG). Illustrator: Hans de Vries.Published as part of Velzen, Robin Van & Wieringa, Jan J., 2014, Rinorea calcicola (Violaceae), an endangered new species from south-eastern Gabon, pp. 267-275 in Phytotaxa 167 (3) on page 269, DOI: 10.11646/phytotaxa.167.3.5, http://zenodo.org/record/513883
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Cymothoe druryi
No full textCymothoe druryi van Velzen & Larsen sp. nov. Figures 3 –7 Description. Male (Figures 4–5). Forewing 32 mm long. The male is creamy white above with a hint of blueish-green. A faint straight discal line divides all wings in a slightly lighter basal half and a slightly darker distal half. There is a postdiscal line of irregular black spots, usually complete on the forewing, but incomplete on the hindwing. A dark, submarginal zig-zag band is separated from the equally dark margin. The abdominal fold is dark brown, and the basal part of both wings is dusted with grey which does not extend far into the wing surface. The underside is greenish-white with no tinge of yellow. A dark, fine, precise, straight discal line which is postdiscally lined with dark dustings crosses all wings. The submarginal chevrons appear as small, dark spots, connected by a light-grey submarginal band which is separated from the equally light-grey margin. The extent of the black markings varies broadly, but the pattern does not: variation is partly seasonally defined. Female (Figures 6–7). Forewing 37 mm long. The upper side has the basal part of both wings dark-brown. This is followed by a white discal band that is precisely delineated, except at the end of the forewing cell where there are three irregular white spots. The band is so wide that the black postdiscal chevrons are largely inside the band. There is slight variation in the width of the white discal band, which is rarely (in <5 % of the specimens) tinged with cream. The marginal chevrons are blackish-brown and bordered by a dark-brown margin. The underside shows the same pattern except for a fine, precise discal line bordering the dark basal part of the wings, and the submarginal chevrons which appear as small, dark spots, connected by a thin submarginal line. Male genitalia (Figure 3). The uncus is 4 times as long as wide and of the same length as the ventral edge of the massive gnathos. The frontal part of the tegumen has a brief hump followed by a slight dome. The valves have a curved wedge-shape, with a long indentation at the dorsal edge anterior of the vinculum; the tips have teeth that continue briefly along the ventral edge of the valves. Below the dorsal edge of the valves is a well-defined, toothed harpe. The penis is of the same length as the valves and has a slight s-shape. Material examined. Holotype: 3 SIERRA LEONE, Gola Forest, April 2006 (T.B. Larsen leg., Zoological Museum Amsterdam coll.). DNA barcoded paratypes: GUINEA: Diecké Forest, 3 December 2006 (E. Vingerhoedt leg., G. Vande Weghe coll.); SIERRA LEONE: Gola Forest, 3 April 2006 (T.B. Larsen leg., ZMA coll.); GHANA: Bobiri Forest, Ƥ March/ April 2007 (T.B. Larsen leg., ZMA coll.); Bobiri Forest, 3 13–18 May 2007 (S. Szabolcs leg., ZMA coll.); 3 2 December 2007 (J.H. Boersma leg., ZMA coll.); Kyabobo, Ƥ June 2005 (R. Vorgas leg., ABRI coll.); NIGERIA: Agbara, Ƥ October 1992 (D.P. Knoop leg. et coll.). All DNA barcoded types are referenced on the BOLD website. Paratypes based on male genitalia: GUINEA: Diecké Forest, 33 14–26 March 2003, 53 September 2003, 43 7–16 May 2004 (Ph. Léonard & E. Vingerhoedt leg., Ph. Oremans coll.); IVORY COAST: Sassandra, 3 October 1997 (Ph. Moretto leg., Ph Oremans coll.); NIGERIA: Isheri Forest, 3 10 March 1990 (D.P. Knoop leg., Muzeum Zoologiczne Uniwersytetu Jagiellonskiego coll.); Palm Grove Estate, Lagos, 3 22 October 1985 (A. Knoop leg., D.P Knoop coll.) Etymology. The species is dedicated to Dru Drury who described Cymothoe caenis in his Illustrations of Natural History volume 2 (Drury, 1773), making it the first Cymothoe species known to science. Despite his major contribution to the taxonomy of West African butterflies, none carries his name. It had been the intention of Heinrich Neustetter, who described many forms of Cymothoe a century ago, to honour Drury with a species of Cymothoe, but it remained a manuscript name (Overlaet, 1952). NB The type of C. caenis appears to have been lost: we shall designate a neotype, preferably from near the type locality in eastern Nigeria when more material is available. Distribution. Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo and western Nigeria (see Figure 1). FIGURE 4–7. Photographs of Cymothoe druryi sp. nov. from Gola Forest in Sierra Leone. 3 Holotype: 4. dorsal view; 5. ventral view. Ƥ paratype: 6. dorsal view; 7 ventral view. Diagnosis. The male is effectively identical to that of C. caenis Drury. No convincing differentiating macromorphological features were found despite the significant DNA differences reported above. The female is monomorphic but similar to one of the female forms of C. caenis that occur in the equatorial area. The male genitalia of C. druryi differ significantly from those of C. caenis Drury in the following features: a) The uncus is distinctly longer, and b) the strongly chitinised gnathos is even more massive; the chitinised uncus has the same length as the ventral edge of the gnathos (that ratio is only 0.70 in C. caenis). c) The frontal part of the tegumen is much less strongly domed than in C. caenis. d) The dorsal edge of the valve, anterior of the vinculum, is indented in C. druryi and rounded in C. caenis. e) The tip of the valve has larger teeth and these are continued briefly along the ventral edge of the valve, whereas C. caenis has small teeth which are not continued. f) The most significant difference is the presence of a well-defined, toothed harpe below the dorsal edge of the valve which is absent in C. caenis. (see Figure 3).Published as part of Velzen, Robin Van, Larsen, Torben B. & Bakker, Freek T., 2009, A new hidden species of the Cymothoe caenis - complex (Lepidoptera: Nymphalidae) from western Africa, pp. 53-63 in Zootaxa 2197 on pages 57-59, DOI: 10.5281/zenodo.18952
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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