1,720,991 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
THE ROLE OF PLANNING IN HEALTH-CARE - WHAT IT SHOULD BE IN INDIA
No full textThis paper attempts to analyse the process of health planning in developing countries with special reference to India. Planning is essential if the meagre resources of less developed countries are to beget the maximum returns in health. Equity and efficiency are both important considerations in health planning, and the objective should be to arrive at an optimum mix of these two. Health planning experience in India has been characterised by radical pronouncement of the need for a total change in strategy to realise our objectives. But this rhetoric has not been matched with action, due to lack of political will to change the health system
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
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
Geographical distribution of endomyocardial fibrosis in south Kerala
No full textBackground. Endomyocardial fibrosis (EMF) is a chronic heart disease confined to a few geographically specific locations within 15 degrees of the equator. Several aetiological hypotheses exist, among them filarial infection, eosinophilia, and toxic effect of the monazite element cerium from the soil. This study attempts to find out whether the pattern of distribution of EMF in south Kerala in India is consistent with the geochemical hypothesis.Methods. From hospital records we identified all patients from south Kerala who had a confirmed diagnosis of EMF during the period 1978-1994, Our controls were patients from the southern districts diagnosed to have rheumatic heart disease (RHD) during the same period. We traced their residence address to the administrative subunit of taluk, and plotted the distribution of patients with EMF and RHD for each taluk in south Kerala. The taluks were then grouped into areas of high (>4/100 000), medium (2.01-4/100 000), and low (less than or equal to 2/100 000) density in each case.Results. We identified an area of high density of EMF comprising four taluks near the coastline situated within the dis districts of Alapuzha, Kollam, and Pathanamthitta. Two coastal taluks in Kollam and Alapuzha districts are known areas of deposits of monazite elements in the state. Geographical distribution is not related to prevalence of filariasis and eosinophilia.Conclusion. Coexistence of high density of occurrence of EMF and deposits of monazite elements support the geo chemical hypothesis
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