1,722,421 research outputs found
Lathrobium longwangshanense Peng, L.
No full textLathrobium longwangshanense Peng, L. -Z. Li & M.-J. Zhao, 2012 Material studied. China: Zhejiang: 4 ♂♂, 1 ♀, Anji County, Longwang Shan, 30°24'N 119°26'E, 1250–1450 m, 14. V.2013, Liang Tan leg. (SNUC); 1 ♂, Lin’an, Tianmu Shan, 30°20'50''N 119°25'58''E, 1300 m, 22.X.2013, Bi, Song, Tang & Yin leg. (SNUC). Comment: Lathrobium longwangshanense Peng, L. -Z. Li & M.-J. Zhao, 2012 has been recorded from several localities in Tianmu Shan and Longwang Shan, Zhejiang (Peng et al., 2012; Peng et al., 2014). For illustrations of L. longwangshanense see Peng et al. (2012c: figures 1B, 4; 2014: 24D–F).Published as part of Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1) on pages 176-177, DOI: 10.11646/zootaxa.4990.1.11, http://zenodo.org/record/498258
Lathrobium lingae Peng, L.
No full textLathrobium lingae Peng, L. -Z. Li & M.-J. Zhao, 2012 Material studied. China: Zhejiang: 1 ♀, Lin’an, Tianmu Shan, 30°20'50''N 119°25'58''E, 1300 m, 22.X.2013, Bi, Song, Tang & Yin leg. (SNUC). Comment: Lathrobium lingae Peng, L. -Z. Li & M.-J. Zhao, 2012 has been recorded from several localities in Tianmu Shan and Longwang Shan, Zhejiang (Peng et al., 2012; Peng et al., 2014). For illustrations of L. linga see Peng et al. (2012c: figures 1A, 3; 2014: 24A–C).Published as part of Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1) on page 176, DOI: 10.11646/zootaxa.4990.1.11, http://zenodo.org/record/498258
Formation and migration of helium pair in bcc Fe from first principle calculations
No full textWe investigated the energetics and configurations of two interstitial He atoms in bcc Fe crystal using first-principle method. Two interstitial He atoms will bind together as helium pair if the initial He-He distance is less than 2.82 A. From a formation energy decomposing analysis we found that, pairing of two He atoms would reduce the interface between He and Fe matrix which mitigates the perturbation of He-1s and Fe-3d orbitals. As a dominant part of the fomation energy, the electron variation energy caused by two close He atoms is less than that of two far He atoms, which accounts for the reason of binding between two close He atoms. Besides, the migration of helium pair along direction [1 0 0] was investigated by a He-He formation energy hypersurface. Through the comparison with Nudged Elastic Band calculation, it's found that this special energy hypersurface was effective in revealing the migration of helium pair in metals
Lathrobium uncum Peng, L.
No full text<i>Lathrobium uncum</i> Peng, L. -Z. Li & M.-J. Zhao, 2012 <p> <b>Material studied.</b> China: Zhejiang: 16 ♂♂, 7 ♀♀, Anji County, Longwang Shan, 30°24'N 119°27''E, 1050–1200 m, 14. V.2013, Li, Lv, Xie & Zhen leg. (SNUC); 3 ♂♂, 2 ♀♀, Anji County, Longwang Shan, 30°24'N, 119°27'E, 1050–1200 m, 15. V.2013, Chen & Pan leg. (SNUC); 2 ♀♀, Lin’an, Tianmu Shan, 30°20'N, 119°25'E, 1200–1500 m, 20.IX.2019, Li Li-Zhen leg. (SNUC); 5 ♂♂, 5 ♀♀, Lin’an, Tianmu Shan, 30°20'59''N, 119°25'31''E, 1460 m, 22.VIII.2013, Liang Tang leg. (SNUC); 1 ♂, Lin’an, Tianmu Shan, 30°20'50''N, 119°25'58''E, 1300 m, 22.X.2013, Bi, Song, Tang & Yin leg. (SNUC).</p> <p> <b>Comment:</b> The original description is based on thirty type specimens collected in Longwang Shan, Zhejiang (Peng <i>et al.</i>, 2012). For illustrations of <i>L. uncum</i> see Peng <i>et al.</i> (2012c: figures 2A, 6).</p>Published as part of <i>Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1)</i> on pages 179-180, DOI: 10.11646/zootaxa.4990.1.11, <a href="http://zenodo.org/record/4982586">http://zenodo.org/record/4982586</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
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
Robust estimation of the generalized Pareto distribution
No full textOne approach used for analysing extremes is to fit the excesses over a high threshold by a generalized Pareto distribution. For the estimation of the shape and scale parameters in the generalized Pareto distribution, under some restrictions on the value of the scale parameter, maximum likelihood, method of moments and probability-weighted moments' estimators are available. However, these are not robust estimators. In this paper we implement a robust estimation procedure known as the method of medians (He and Fung (1999)) to estimate the parameters in the generalized Pareto distribution. The asymptotic distribution of our estimator is normal for any value of the shape parameter except -1
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