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"Lost" plant collections from the Amazon 1. The 1899 expedition of Dr. Luigi Buscalioni.
No full textA truly forgotten Amazonian botanical collection was that made by Dr. Luigi Buscalioni (1863-1954), whose 1899 expedition to southeastern Amazonia and particularly the edaphic savannas and transitions to drier savanna woodlands of the Brazilian Planalto at the southeastern edge of Amazonia-part of it still a botanical frontier-produced some 5,000 collections of plants and fungi. He traveled up the Tocantins and Araguaia rivers, penetrating into what are now the states of Tocantins and Goias. Buscalioni's was a relatively early expedition for Amazonia: only six substantial collections (> 1,000 numbers) are known to have been made prior to 1900 in all of Brazilian Amazonia. Moreover, the upper Rio Tocantins and the Rio Araguaia remain poorly known botanically, so his collection undoubtedly contains much valuable information about the original flora of that region. This information unfortunately has been unavailable, however, because most of the collection languished in bundles at the RO herbarium for the best part of a hundred years, from the turn of the century until 1984, when the junior author discovered their existence during a re-organization of the RO herbarium, and 1995, when a visit by the senior author coincided with the recovery of revealing historical archives. The label information and preliminary taxonomy have now been data-based and are available over the Internet. In addition to his collections, Buscalioni's Amazonian legacy includes participation in debates about the origins of myrmecophily and the Amazonian savannas, the botanical identity of the commercial latex called caucho, and (indirectly) the founding of the INPA research institute in Manaus, Brazil. His scientific reputation and especially his efforts to found an international institute for Amazon plant research in Brazil brought him into dialogue with the great botanists of the day
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Traumatic Realism and the Documentary: Remembering the Cambodian Genocide
No full textThe article is centred on the relationship between visual imaginary and testimonies, the way the former could stand as a momentary and provisional answer to some of the questions underpinning all the existing literature on traumas and testimonies, which have mainly centred on the representability of the un-representable: how to articulate a failed experience, something that is not part of memory itself and which cannot be, or has not yet been, worked through? How to witness an event that by (a certain) definition is without a witness, since the only possible one is the dead? To answer these questions, the essays analyzes an example of visual testimony, the documentary S-21. The Khmer Rouge Killing machine,
a film produced in 2003 by the Institut National de l’Audiovisuel and by Arte (France) and directed by Rithy Panh, a victim of the Cambodian genocide, having been held captive during the years of the regime (from 1975 to 1979) while his whole family (mother, father, brothers and sisters, uncles) was being tortured and eventually killed. And it is what happened in one of the places where this genocide was perpetrated, and how, that this documentary, posing itself as a belated witness, tries to recount, thanks to the testimonies of two of its seven victims-survivors but most of all thanks to the memories of some of the prison guards, the perpetrators
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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
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