1,720,968 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    AN EVALUATION OF LESOTHO’S RIGHT TO “EXPROPRIATE” THE WATER IN THE TREATY ON THE LESOTHO HIGHLANDS WATER PROJECT IN A “CONFLICT OF USES”*

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    This article explores the contemporary spectre of “expropriation” within the framework of the Treaty on the Lesotho Highlands Water Project (LHWP). The LHWP is an enigma in both its scope and practical application since it is governed by two apparently complementary treaties, and it seemingly incorporates the domestic laws of both South Africa and Lesotho. This is compounded by the contradictory legislation that has been promulgated by Lesotho that prioritises its domestic water uses despite the entrenched provisions of the LHWP regime that prioritises the supply of water to South Africa. This uncertainty has significant implications for a “conflict of uses” in the LHWP that may trigger an expropriation bid by Lesotho. This article unmasks the possible response of the LHWP legal framework to Lesotho’s right to “expropriate” the water in the LHWP in light of this ambiguous and confounding legal framework

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    AN ANALYSIS OF THE INTERPLAY BETWEEN THE TWIN PROVISIONS OF SECTION 48 OF THE NATIONAL ENVIRONMENTAL MANAGEMENT: PROTECTED AREAS ACT AND SECTION 48 OF THE MINERAL AND PETROLEUM RESOURCES DEVELOPMENT ACT, IN RESPECT OF “PROTECTED AREAS”

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    This note examines the interplay between the twin provisions of section 48 of the National Environmental Management: Protected Areas Act (57 of 2003) (NEMPA Act) and section 48 of the Mineral and Petroleum Resources Development Act (28 of 2002) (MPRDA), in respect of the concept of a “protected area”. In essence, section 48(1) of the NEMPA Act read with section 48(1) of the MPRDA, prohibit “prospecting” in “protected areas”. However, section 48(1)(b) of the NEMPA Act and section 48(2) of the MPRDA, permit “prospecting” in “protected environments” and in any land “reserved in terms of any other any law”, if written authorisation is acquired under specific strict conditions. “Prospecting” is defined as intentionally searching for any mineral through any method which disturbs the surface or subsurface of the earth, including any portion of the earth that is under the sea or under other water; or in or on any residue stockpile or residue deposit, in order to establish the existence of any mineral and to determine the extent and economic value thereof; or in the sea or other water on land (s 1 read with s 17 of the MPRDA). This issue of the relationship between section 48 of the NEMPA Act and section 48 of the MPRDA has yet to be appropriately adjudicated on by the courts and thus, this paper will assess the implications of their inevitable interaction and suggest an approach that the courts could take in the assessment of a prospecting licence granted in respect of a “protected area”
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