1,721,014 research outputs found
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
Qui prendra ma terre ?L'Office du Niger, des investissements internationaux aux arrangements fonciers locaux.
No full textThe 2008 global food crisis led to a wide dynamic of large scale investments in agriculture. In West Africa, the Office du Niger (ON) irrigation scheme is a significant example of such a dynamic of investment in agriculture. 45,000 family farmers grow rice on 100,000 hectares where they have never obtained property rights. Facing low national investment capacity and a significant decrease in the international development assistance, the Malian State launched an appeal to investors to reach the objective defined in the early 1930’s of one million hectares developed for irrigation. Investors were national or foreign investors from the private or public sectors. The State defined new rules to make their access to land easier. The risk of land grabbing linked to the arrival of new investors gave the signal for a rush to access to land in which different actors: investors, farmers, national or local officers, used informal arrangements.This research shows that these arrangements are historically rooted in the evolution of land management in the ON area. The main methodological contribution of this research is that arrangements are analyzed as a process that enables the different actors to adapt to binding rules, and finally to achieve their objectives. Three types of arrangements are described: cooperative arrangements, neo-customary arrangements, and speculative arrangements. By analyzing stakeholders’ games, this research highlights the importance of the actors’ positions and the socio-political context as key factors in the creation of new land arrangements.La crise alimentaire mondiale de 2008 a provoqué un mouvement d’investissements fonciers à grande échelle. En Afrique de l’Ouest, l’Office du Niger (ON) est un cas emblématique des aux investissements fonciers dans l’irrigation. 45 000 exploitations familiales y exploitent 100 000 ha de rizières sur lesquelles ils n’ont jamais obtenu de droits fonciers. Faute de capitaux, l’Etat malien a fait appel aux investisseurs, privés et publics, nationaux et étrangers, pour atteindre l’objectif d’un million d’ha irrigués visé depuis 1932. De nouvelles règles facilitent leur accès à la terre. L’arrivée des investisseurs et les risques d’accaparements ont donné le signal d’une course à la terre où les différents acteurs, investisseurs, paysans, petits et hauts responsables de l’Etat, mettent en œuvre des arrangements fonciers informels. La thèse montre que ces arrangements ont leurs racines dans l’évolution historique du foncier. Elle analyse le développement des arrangements fonciers en tant que processus d’adaptation à des règles contraignantes ne permettant pas aux acteurs d’atteindre leurs objectifs. Trois types d’arrangements ont pu être identifiés : des arrangements coopératifs, des arrangements néo-coutumiers et des arrangements spéculatifs. A travers l’analyse des jeux d’acteurs, la thèse souligne l’importance du rôle des acteurs, mais aussi du contexte socio-politico-spatial dans la construction des arrangements fonciers
Qui prendra ma terre ?L'Office du Niger, des investissements internationaux aux arrangements fonciers locaux.
No full textThe 2008 global food crisis led to a wide dynamic of large scale investments in agriculture. In West Africa, the Office du Niger (ON) irrigation scheme is a significant example of such a dynamic of investment in agriculture. 45,000 family farmers grow rice on 100,000 hectares where they have never obtained property rights. Facing low national investment capacity and a significant decrease in the international development assistance, the Malian State launched an appeal to investors to reach the objective defined in the early 1930’s of one million hectares developed for irrigation. Investors were national or foreign investors from the private or public sectors. The State defined new rules to make their access to land easier. The risk of land grabbing linked to the arrival of new investors gave the signal for a rush to access to land in which different actors: investors, farmers, national or local officers, used informal arrangements.This research shows that these arrangements are historically rooted in the evolution of land management in the ON area. The main methodological contribution of this research is that arrangements are analyzed as a process that enables the different actors to adapt to binding rules, and finally to achieve their objectives. Three types of arrangements are described: cooperative arrangements, neo-customary arrangements, and speculative arrangements. By analyzing stakeholders’ games, this research highlights the importance of the actors’ positions and the socio-political context as key factors in the creation of new land arrangements.La crise alimentaire mondiale de 2008 a provoqué un mouvement d’investissements fonciers à grande échelle. En Afrique de l’Ouest, l’Office du Niger (ON) est un cas emblématique des aux investissements fonciers dans l’irrigation. 45 000 exploitations familiales y exploitent 100 000 ha de rizières sur lesquelles ils n’ont jamais obtenu de droits fonciers. Faute de capitaux, l’Etat malien a fait appel aux investisseurs, privés et publics, nationaux et étrangers, pour atteindre l’objectif d’un million d’ha irrigués visé depuis 1932. De nouvelles règles facilitent leur accès à la terre. L’arrivée des investisseurs et les risques d’accaparements ont donné le signal d’une course à la terre où les différents acteurs, investisseurs, paysans, petits et hauts responsables de l’Etat, mettent en œuvre des arrangements fonciers informels. La thèse montre que ces arrangements ont leurs racines dans l’évolution historique du foncier. Elle analyse le développement des arrangements fonciers en tant que processus d’adaptation à des règles contraignantes ne permettant pas aux acteurs d’atteindre leurs objectifs. Trois types d’arrangements ont pu être identifiés : des arrangements coopératifs, des arrangements néo-coutumiers et des arrangements spéculatifs. A travers l’analyse des jeux d’acteurs, la thèse souligne l’importance du rôle des acteurs, mais aussi du contexte socio-politico-spatial dans la construction des arrangements fonciers
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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