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A new species of Miconia (Melastomataceae: Miconieae) from the eastern slope of the Peruvian Andes
No full textOcampo, Gilberto, Almeda, Frank (2014): A new species of Miconia (Melastomataceae: Miconieae) from the eastern slope of the Peruvian Andes. Phytotaxa 163 (3): 166-172, DOI: 10.11646/phytotaxa.163.3.3, URL: http://dx.doi.org/10.11646/phytotaxa.163.3.
FIGURE 9 in Morphological characterization of seeds in Portulacaceae
No full textFIGURE 9. Scanning electron microscopy images of seeds of Portulacaceae: A, Portulaca tingoensis; B, P. tuberosa; C, P. umbraticola subsp. umbraticola; D, P. umbraticola subsp. coronata; E, P. umbraticola subsp. lanceolata; F, P. umbraticola cv. 'wildfire mixed'; G, P. wightiana; H, P. yecorensis. Scale bar = 0.1 mm.Published as part of Ocampo, Gilberto, 2013, Morphological characterization of seeds in Portulacaceae, pp. 1-24 in Phytotaxa 141 (1) on page 14, DOI: 10.11646/phytotaxa.141.1.1, http://zenodo.org/record/509982
FIGURE 5 in Morphological characterization of seeds in Portulacaceae
No full textFIGURE 5. Scanning electron microscopy images of seeds of Portulacaceae: A, Portulaca grandiflora; B, P. grandiflora cv.; C, P. guanajuatensis; D, P. halimoides; E, P.hereroensis; F, P. howellii; G, P. intraterranea; H, P. johnstonii. Scale bar = 0.1 mm.Published as part of Ocampo, Gilberto, 2013, Morphological characterization of seeds in Portulacaceae, pp. 1-24 in Phytotaxa 141 (1) on page 10, DOI: 10.11646/phytotaxa.141.1.1, http://zenodo.org/record/509982
FIGURE 7 in Morphological characterization of seeds in Portulacaceae
No full textFIGURE 7. Scanning electron microscopy images of seeds of Portulacaceae: A, P. oleracea subsp. impolita (P. impolita); B, P. oleracea subsp. nicaraguensis (P. nicaraguensis); C, P. oleracea subsp. nitida (P. nitida); D, P. oleracea subsp. papillatostellulata (P. papillatostellulata); E, P. oligosperma; F, P. papulifera; G, P. perennis; H, P. pilosa. Scale bar = 0.1 mm.Published as part of Ocampo, Gilberto, 2013, Morphological characterization of seeds in Portulacaceae, pp. 1-24 in Phytotaxa 141 (1) on page 12, DOI: 10.11646/phytotaxa.141.1.1, http://zenodo.org/record/509982
FIGURE 1. Miconia glandulipetala Ocampo & Almeda. A. Branches with infructescences. B in A new species of Miconia (Melastomataceae: Miconieae) from the eastern slope of the Peruvian Andes
No full textFIGURE 1. Miconia glandulipetala Ocampo & Almeda. A. Branches with infructescences. B. Flower at anthesis. C. Longitudinal section of a flower (petals and stamens removed). D. Petal showing a subapical glandular hair. E. Stamens in lateral (left) and dorsal (right) views. F. Transversal section of an ovary. G. Mature berry.Published as part of Ocampo, Gilberto & Almeda, Frank, 2014, A new species of Miconia (Melastomataceae: Miconieae) from the eastern slope of the Peruvian Andes, pp. 166-172 in Phytotaxa 163 (3) on page 168, DOI: 10.11646/phytotaxa.163.3.3, http://zenodo.org/record/513237
FIG. 4 in Lichen community assemblages and functional traits as indicators of vegetation types in central Mexico, based on herbarium specimens
No full textFIG. 4. — Community weighted mean proportions of functional traits for each vegetation type: A, growth forms; B, substrate; C, reproductive structure types; D, photobionts.Published as part of Simijaca, Diego, Ocampo, Gilberto, Escoto-Moreno, Jaime & Pérez-Pérez, Rosa Emilia, 2023, Lichen community assemblages and functional traits as indicators of vegetation types in central Mexico, based on herbarium specimens, pp. 83-102 in Cryptogamie, Mycologie 20 (6) on page 90, DOI: 10.5252/cryptogamie-mycologie2023v44a6, http://zenodo.org/record/820022
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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