1,720,966 research outputs found
Illustrations of British Entomology; Mandibulata (excerpt)
No full textStephens, J. F. (1836): Illustrations of British Entomology; Mandibulata (excerpt). London: Baldwin and Cradock, DOI: http://doi.org/10.5281/zenodo.353055
Lestes nympha
No full textSp. 2. Nympha. Supra lateribusque viridi-aenea, nitens, subtus flavescens, pedibus rufescentibus supra atris, thoracis lateribus utrinque lined nigra, stigmate atro. (Long. corp. 17—18 lin.; Exp. Alar. 20—21 1/2 lin.) Le. Nympha. Kirby MSS. —Steph. Catal. 308. No. 3421. Head bright brassy-green or bronzed above, the mouth and beneath yellowish; thorax also brassy-green above, with three fine yellowish streaks, the sides yellowish, each with a single irregular black streak; space between the wings dull luteous; abdomen above and on the sides brassy-green, beneath luteous; caudal appendages of the males fuscous, pale at the base; legs reddish, black above; wings with a black or fuscous stigma. Probably a mere variety of the foregoing insect. Found with the preceding insect.Published as part of Stephens, J. F., 1836, Illustrations of British Entomology; Mandibulata (excerpt), London :Baldwin and Cradock on pages 77-78, DOI: 10.5281/zenodo.353055
Lestes viridis
No full textSp. 1. viridis. Supra lateribusque viridi-oenea, nitens, subtusJlavescens, pedibus luteis supra atris, stigmate rufo. (Long. corp. 17—18 lin.; Exp. Alar. 20— 21 lin.) Ag. viridis. Van. Linden, p. 36.— Le. sponsa. Steph. Catal. 308. No. 3420. Head bright brassy-green; mouth and beneath yellow; tips of the mandibles black; collar brassy-green, with the sides and a dorsal line yellow in the females; thorax above bright grassy-green, with three slender longitudinal yellow lines, the sides and space between the wings luteous-yellow; abdomen above and on the sides rich brassy-green, beneath yellowish, the extreme edge of most of the basal segments also yellowish; upper caudal appendage in the male luteous, the tip fuscous; lower fuscous; legs luteous, black above; wings with a red or fuscescent stigma. Some examples are of a brighter and richer green than others, while some are bronzed. Not uncommon in the New Forest in June and July; also found near Wanstead in Essex, and in the vicinity of Ripley, and in Suffolk.Published as part of Stephens, J. F., 1836, Illustrations of British Entomology; Mandibulata (excerpt), London :Baldwin and Cradock on page 77, DOI: 10.5281/zenodo.353055
Lestes
No full textGenus VIII.— LESTES, <i>Leach.</i> <p> <i>Wings</i> narrow, thin and membranaceous, composed of numerous small areolets, the greater portion of which (especially towards the apex) are pentagonal, the fourth longitudinal nervure angulated; <i>stigma</i> oblong, rather large: <i>abdomen</i> slender, nearly linear, being a little dilated at the apex, which in the males is furnished with semicircular appendages, of the female with simple ones; <i>w ings</i> half expanded (as in Smerinthus) during repose. Mask of the larvae with a double projection on the upper edge of the mentum.</p> <p> Prom Agrion the species of this genus are distinguished with facility by the areolets of the wings being more numerous, and by the greater portion of them towards the apex, especially on the margins, being either pentagonal or polygonal, rarely quadrangular, the fourth longitudinal nervure being much angulated in numerous zigzags; the stigma is oblong, and the males are distinguished by having the apex of the abdomen armed with curved forceps; yet, regardless of these obvious distinctions, these insects, as well as those of the preceding genus, were long considered as constituting <i>one species</i> only, and are thus considered in the latest works of the celebrated Latreille, although the discrepancies of the two genera were pointed out by Leach in 1810!!</p>Published as part of <i>Stephens, J. F., 1836, Illustrations of British Entomology; Mandibulata (excerpt), London :Baldwin and Cradock</i> on pages 76-77, DOI: <a href="http://zenodo.org/record/3530550">10.5281/zenodo.3530550</a>
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
Stephens, J. F.
No full textSee entry in Calhoun County volume 1, page 147: https://digital.archives.alabama.gov/digital/collection/voter/id/27
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
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