1,720,974 research outputs found
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
DISTRIBUTION AND CONSERVATION STATUS OF FISH SPECIES IN RIVERS TUICH0NG AND TUIVAI IN MIZORAM: PIONEERING DETAILED TAXONOMIC STUDY AND REPORT
Full text linkFish diversity and taxonomic surveys in the River Tuichong at different locations from the headwaters to the downstream region in the province of Mizoram, done as a pioneering work (since updated), revealed the occurrence of 8 species of fishes under 8 genera, 3 sub-families, 7 families and 3 Orders. during the entire period of study. These include 5 ichthyospecies under Cypriniformes, 2 fish species under Siluriformes and one fish species under Anabantiformes. Conservation status and Distrubution of each species of fish have been discussed in the present paper. Likewise, Fish faunal surveys in the River Tuivai at different locations and on different dates in the province of Mizoram, done as a pioneering work (since updated), revealed the occurrence of 9 species of fishes belonging to 9 genera, 4 sub-families, 6 families and 2 orders during the entire period of study. These included 6 species under Cypriniformes and 3 species under Siluriformes. Conservation status and Distrubution of each fish species have been discussed in the present communication
Wetlands, Fishes and Pandemics with Special Reference to India
Full text linkWater is life, life is water. Water is indispensably important for sustenance of life. Wetlands serve as potential water bodies, harbouring coveted bioresources, which sustain animal life. Fish is a significant bioresource for nutrition and avocation of the people. There are various types of wetlands in the Indian sub-continent. India has c 67,429 wetlands covering c 4.1 million ha. Concomitantly, c 21,723 living species of fish have been recorded out of 39,900 species of vertebrates. Of these, c 8411 are freshwater (FW) species and c 11,650 are marine. India recorded c 2500 species of fishes; of which, c 930 live in FW and c 1570 are marine. The hitherto unknown dreadful, virulent, enigmatic Epizootic Ulcerative Syndrome (EUS), has been sweeping the FW fishes in an epidemic dimension, unhindered, unimpeded and unabated, almost semi-globally; and, has been causing large-scale mortality among them, since 1988, rendering many of them endangered. Concomitantly, the outbreak of SARS-CoV-2, among the human, was first reported at Wuhan, China, in late December 2019. The first 54 reported cases of COVID-19 were observed in December 2019 at Wuhan, China, and this, subsequently, had spread across the globe. India has been facing much impacts of COVID19 pandemic since its inception in China
Sone Beel Wetland in Asia Amidst Global Scenario
Full text linkWetlands play an undebatable role in regulating the global climate, hydrological cycle and ecosystem diversity; and, therefore, must be preserved and conserved. Conversely, global wetland area and water quality has since been declining (c 87% around the globe since 1700 AD), mainly due to human interference accompanied by natural succession process. Under this backdrop, physical, chemical, biological and ichthyologic features and fisher folk (following standard procedures of study) of the Asian wetland Sone Beel has been focused as a typical case study in the global scenario. Threats to the to Ramsar sites along with their categorization has also been discussed on a global scenario
DISTRIBUTION AND CONSERVATION STATUS OF FISH SPECIES IN RIVER SERLUI IN MIZORAM: PIONEERING DETAILED TAXONOMIC STUDY AND REPORT
Full text linkIchthyofaubnal surveys conducted in the River Serlui at different locations and on different dates in the province of Mizoram, done as a pioneering work (since updated), revealed the occurrence of 18 species of fishes belonging to 17 genera, 4 sub-families, 10 families and 4 orders during the entire period of study. These included 9 species under Cypriniformes. 7 species under Siluriformes; and, 1 species each under Beloniformes and Anabantiformes. Distrubution and Conservation status and of each fish species have been discussed in the present communication
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
DISTRIBUTION AND CONSERVATION STATUS OF FISH SPECIES IN RIVER MAT IN MIZORAM: PIONEERING DETAILED TAXONOMIC STUDY AND REPORT
Full text linkIchthyofaunal surveys in the River Mat at different locations from the headwaters to the downstream region in the province of Mizoram, done as a pioneering work (since updated), revealed the occurrence of 26 species of fishes belonging to 23 genera, 11 sub-families, 13 families and 6 orders during the entire period of study. These include 17 species under Cypriniformes, 4 species under Siluriformes, 2 species under Anabantiformes; and, 1 speices each under Beloniformes, Synbranchiformes and Gobiiformes. Distrubution and Conservation status of each species of fish have been dealt with in the present paper
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