1,722,455 research outputs found
Helvetia semialba Gustavo R. S. Ruiz & Antonio D. Brescovit 2008, comb. nov.
No full textHelvetia semialba (Simon, 1901) comb. nov. Figs 8-10 Deloripa semialba Simon, 1901b: 157 (female holotype from Serra do Caraça, Catas Altas, Minas Gerais, Brazil, Gounelle leg., deposited in MNHN 7735, examined); Galiano, 1963a: 342, pl. XVIII, fig. 8; Platnick, 2007. Diagnosis. This species is similar to H. labiata by having copulatory ducts with similar length and shape, but can be distinguished by the longer copulatory ducts seen in ventral view, overlaying medially (Figs 9 and 10). Description. Female. Described by GALIANO (1963a: 342, under Deloripa semialba). Male. Unknown. Additional material examined. None. Distribution. Known only from Minas Gerais, Brazil.Published as part of Gustavo R. S. Ruiz & Antonio D. Brescovit, 2008, Revision of Helvetia (Araneae: Salticidae: Heliophaninae), pp. 139-147 in Revista Brasileira de Zoologia 25 (1) on page 142, DOI: 10.1590/S0101-81752008000100018, http://zenodo.org/record/367850
IC084: Interview with Richard S. Ruiz, MD
No full textA Conversation with Richard S. Ruiz, MD. with N. Don Macon. Produced by UT/TV Houston, The University of Texas Health Science Center at Houston. Copyright 1911. 1/22/1991. Runtime is 29:52 minutes. See more at Texas Medical Center Historical Resources Project Records and its finding aid
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
Helvetia labiata Gustavo R. S. Ruiz & Antonio D. Brescovit 2008, sp. nov.
No full textHelvetia labiata sp. nov. Figs 6-7 Type. Female holotype from Barragem Itaúba, Estrela Velha, Rio Grande do Sul, Brazil, 28.X.1999, A.H. Silva leg., deposited in MCN 31552. Etymology. The specific name is a Latin word meaning lipshaped and refers to the posterior part of the epigynum, with a “lip” formed by the posterior epigynal edge and by an anterior edge resulting from the medial junction of the copulatory openings. Diagnosis. This species seems to be closely related to H. semialba by having copulatory ducts with similar length and shape, but can be differentiated by the shorter copulatory ducts, seen ventrally through the translucent epigynal integument (Figs 6 and 7). Description. Female (holotype). Total length: 5.80. Carapace brown, 1.90 long, 1.15 wide, 0.60 high, with a narrow black stripe marginally and sparse white scales. Cephalic region black. Ocular quadrangle 0.90 long. Anterior eye row 0.95 wide and posterior 1.00 wide. Chelicera dark brown. Endite, labium and sternum brown. Palp yellow. Legs 4312 orange, Iwith brown stripes on metatarsus and tarsus. Length of femur: I 0.75, II 0.65, III 0.75, IV 1.10; patella + tibia: I 1.00, II 0.80, III 0.80, IV 1.25; metatarsus + tarsus: I 0.60, II 0.60, III 0.90, IV 1.00. Spination. Femur I, II, III, IV d1-1-1; tibia I v2, II v1 r, III v1 di, IV v2 di; metatarsus I, II v2-2, III, IV v0-3, p1di, r1di. Abdomen gray, with two longitudinal paramedian dark stripes extending to the posterior third, followed by transverse dark stripes; ventrally cream colored. Epigynum as in figures 6 and 7. Spinnerets dark gray. Male. Unknown. Additional material examined. None. Distribution. Known only from the state of Rio Grande do Sul, Brazil.Published as part of Gustavo R. S. Ruiz & Antonio D. Brescovit, 2008, Revision of Helvetia (Araneae: Salticidae: Heliophaninae), pp. 139-147 in Revista Brasileira de Zoologia 25 (1) on page 141, DOI: 10.1590/S0101-81752008000100018, http://zenodo.org/record/367850
IC084: A Conversation with Richard S. Ruiz, MD
No full textA Conversation with Richard S. Ruiz, MD. with N. Don Macon. Produced by UT/TV Houston, The University of Texas Health Science Center at Houston. Copyright 1911. 1/22/1991. Runtime is 29:52 minutes. See more at Texas Medical Center Historical Resources Project Records and its finding aid.https://digitalcommons.library.tmc.edu/exhibit_construction/1373/thumbnail.jp
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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