1,720,961 research outputs found
New fossil and extant species of Nemopalpus Macquart (Diptera: Psychodidae: Bruchomyiinae)
No full textWagner, Rüdiger, Stuckenberg, Brian R. (2012): New fossil and extant species of Nemopalpus Macquart (Diptera: Psychodidae: Bruchomyiinae). African Invertebrates 53 (1): 355, DOI: 10.5733/afin.053.0119, URL: http://www.bioone.org/doi/abs/10.5733/afin.053.011
Fig. 1 in EDITORIAL The Natal Museum and its journals: celebrating a century of publication, 1906-2005
No full textFig. 1. Front covers of the Annals, as they changed from 1906 to 2000.Published as part of Stuckenberg, Brian R. & Mostovski, Mike B., 2006, EDITORIAL The Natal Museum and its journals: celebrating a century of publication, 1906-2005, pp. 1-10 in African Invertebrates 47 on page 2, DOI: 10.5281/zenodo.766481
Fig. 2 in EDITORIAL The Natal Museum and its journals: celebrating a century of publication, 1906-2005
No full textFig. 2. Cordylus warreni described by Boulenger (1908) from Ubombo.Published as part of Stuckenberg, Brian R. & Mostovski, Mike B., 2006, EDITORIAL The Natal Museum and its journals: celebrating a century of publication, 1906-2005, pp. 1-10 in African Invertebrates 47 on page 4, DOI: 10.5281/zenodo.766481
Figs 12–16 in Labial morphology in Blephariceridae (Diptera: Nematocera): a new interpretation with phylogenetic implications, and a note on colocephaly
No full textFigs 12–16. Transformation series in New Caledonian Apistomyiini (see also Fig. 10 for unmodified apistomyiine form). 12. Curupirina microcephala Stuckenberg; 13. Curupirina starmuhlneri Stuckenberg. 14–16. Nesocurupira curtirostris Stuckenberg: 14. head in frontal view; 15. posterior view of reduced mouthparts (lm = labrum; lp = labial palp; mp = maxillary palp); 16. empty mouthpart sheaths of pupa; (from Stuckenberg 1970).Published as part of Stuckenberg, Brian R., 2004, Labial morphology in Blephariceridae (Diptera: Nematocera): a new interpretation with phylogenetic implications, and a note on colocephaly, pp. 223 in African Invertebrates 45 on page 234, DOI: 10.5281/zenodo.766674
Figs 1–3. Isalomyia irwini Stuckenberg. 1 in A redescription of Isalomyia irwini Stuckenberg, the wormlion fly of Madagascar, related to an Arabian species for which the new genus Alhajarmyia is erected (Diptera: Vermileonidae)
No full textFigs 1–3. Isalomyia irwini Stuckenberg. 1. Female head, lateral, the projecting paragular sclerite arrowed; internal recurved basal part of labium shown by dark line. 2. Complete male labium, anterior surface on right, recurved basal section at upper end; the arched form of exposed part is an artefact caused by detachment from the syntrophium which normally lies in the labial gutter and keeps the labium straight as in Fig. 1; dark line running internally over length of labium is produced by two narrow, parallel, sclerotised strips embedded in membrane of labial gutter; inset are two enlarged portions showing internal location of the strips which are closer to anterior surface basally where gutter is absent; corrugated posterior integument also shown. 3. Diagrammatic representation of form of stipital sclerites embedded in membrane under the head; they converge posteriorly and fuse.Published as part of Stuckenberg, Brian R., 2003, A redescription of Isalomyia irwini Stuckenberg, the wormlion fly of Madagascar, related to an Arabian species for which the new genus Alhajarmyia is erected (Diptera: Vermileonidae), pp. 191 - 201 in African Invertebrates 44 (2) on page 194, DOI: 10.5281/zenodo.791743
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
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
- …
