1,720,960 research outputs found
Ara militaris
No full textMilitary Macaw Ara militaris Not evaluated by Guyra Paraguay (2004). A specimen in the Geneva museum (MHNG 133030) lacks collection data other than the entry date 1831 and includes a note “probably Paraguay ” that expresses clear doubt about the provenance. This is clearly in error and the specimen must have originated elsewhere as the ecoregions in which the species occurs are not found in Paraguay.Published as part of Rodríguez, Oscar, Castillo, Leandro, Smith, Paul & Castillo, Hugo del, 2019, Status and distribution of Paraguayan macaws (Aves: Psittacidae) with a new country record, pp. 1-10 in Papéis Avulsos de Zoologia 59 on page 7, DOI: 10.11606/1807-0205/2019.59.60, http://zenodo.org/record/538481
Figure 6 in Status and distribution of Paraguayan macaws (Aves: Psittacidae) with a new country record
No full textFigure 6. Distribution of Yellow-collared Macaw Primolius auricollis in Paraguay. Black dots: recent visual record, Green dots: specimen record.Published as part of Rodríguez, Oscar, Castillo, Leandro, Smith, Paul & Castillo, Hugo del, 2019, Status and distribution of Paraguayan macaws (Aves: Psittacidae) with a new country record, pp. 1-10 in Papéis Avulsos de Zoologia 59 on page 4, DOI: 10.11606/1807-0205/2019.59.60, http://zenodo.org/record/538481
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
Ara glaucogularis Dabbene 1921
No full textBlue-throated Macaw <i>Ara glaucogularis</i> <p> Wagler’s (1832) name <i>Ara caninde</i> was based on Azara’s (1805) description of his Guacamayo caninde. This was for a long time thought to apply to the Bolivian endemic Blue-throated Macaw <i>Ara glaucogularis.</i> However, the identity was confirmed as this species by Bertoni (1922) and Dabbene (1920, 1921) with further clarification provided by Ingels <i>et al.</i> (1981). It seems that all Paraguayan reports can be traced back to this confusion. Two supposed Paraguayan specimens in the NHM mentioned by Forshaw (1973) are in fact from elsewhere (Ingels <i>et al.,</i> 1981).</p> <p> Podtiaguin (1944) writes of a pair of <i>Ara glaucogularis</i> being killed in Colonia Esperanza (probably Guairá department) on 18 June 1939 by E. Ávila (though earlier in the same publication he attributes the record to “E. Krenitsky”), with another taken by P. Willim at Colonia Nueva Italia, Central department.The location of Colonia Esperanza is uncertain, as there is also a locality with this name in Presidente Hayes department (S 23°58 <b>′</b> 04.36 <b>″</b>, W 58°45 <b>′</b> 42.58 <b>″</b>). He describes the species as “travelling a lot” in certain years and it “not being rare to find it in Paraguay ”. However, this is completely at odds with all available evidence, and as Podtiaguin had a tendency to write secondhand accounts of birds in a firsthand manner (Smith, 2016), it is far from clear whether he ever examined the specimens he wrote about.</p>Published as part of <i>Rodríguez, Oscar, Castillo, Leandro, Smith, Paul & Castillo, Hugo del, 2019, Status and distribution of Paraguayan macaws (Aves: Psittacidae) with a new country record, pp. 1-10 in Papéis Avulsos de Zoologia 59</i> on page 7, DOI: 10.11606/1807-0205/2019.59.60, <a href="http://zenodo.org/record/5384819">http://zenodo.org/record/5384819</a>
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
