1,720,954 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

    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 Economic Analysis of the Cost Structure and Constraints of Maize Cultivation in Hyderabad-Karnataka Region

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    Maize (Zea mays L.) is one of the most versatile emerging crops, with a wide range of adaptation under a multitude of agro-climatic conditions. It is primarily a kharif crop (the kharif cropping season is also called as fall harvest season and is from July to October during the south-west monsoon in Indian subcontinent), with 85 per cent of the area under cultivation during kharif season. After rice and wheat, maize is India's third most important cereal crop. The current study attempts to analyze the cost and return structure of the maize crop in Koppal district of Karnataka state, as well as the marketing costs incurred by 120 maize respondent farmers and the constraints coupled with maize production and marketing. The study concluded that large farmers have incurred higher costs in all the inputs such as seed, farm yard manure (henceforth FYM), fertilizer, plant protection chemicals (henceforth PPCs), human labour and machine labour. For cultural operations, both medium and large agriculture depends on machine labour rather than bullock power. Transportation and packing costs were higher in all farmer categories. The transportation cost varied according to the quantity of produce and the distance between the regulated market and the study area. The maize respondents said that erratic rainfall behaviour was a major production constraint (90.0%), whereas lack of news dissemination was a major marketing constraint, ranking first with 85 per cent

    An Assessment of Structural Change in Sugarcane Cropping Pattern in Karnataka: Evidence from Markov Chain Analysis

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    Aims: The present study was undertaken in Kalaburagi with the overall objective of determining the structural change in sugarcane cropping pattern in Kalyana-Karnataka region. Study Design: The study was conducted in Kalaburagi district of Karnataka state especially focused to Kalyan Karnataka region. The area of ten major crops of the Kalaburgi district were taken in to consideration such as Jawar, Wheat, Red gram, Chickpea (Gram), Groundnut, Sunflower, Banana, Onion and Others crops for study. Material and Methods: The 20 year’s secondary data of sugarcane were collected from 2000-01 to 2021-22 to fulfill the objectives of the study. The required data were collected from different sources such as District Statistical Officer, DES, Bangalore, DAC, Indiastat.com, etc. The study used CAGR, CV, Markov chain analysis, Moving Average Methods and descriptive analysis to fulfil the objectives of the study.    Results: The results of the transition probability matrix (TPM) showed that sugarcane has retained 40 percent of its area over the study period and it has gained 38 percent of area from Jowar and 21 percent of area from Bengal gram in the Kalaburagi district. The study showed that the sugarcane productions were largely contributed from Afzalpur taluq in the Kalaburagi district followed by Jewargi and Aland during the period. Conclusion: The study concluded that sugarcane crop has emerged as alternative crop in the irrigation belt of the Kalaburagi and it has high potentiality for improving socio-economic conditions of the farmers in the region

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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