1,720,956 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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    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

    The Effect of Using Fiberglass Sheets on the Physical and Mechanical Properties of Particle Board from Organic Solid Waste.

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    Bamboo is a type of grass plant with cavities and segments in its stem. One of the specialties of bamboo is that it is the fastest growing plant in the world. The high growth rate makes bamboo very easy to find in every region. Durian fruit skin contains about 50-60% cellulose, 5% lignin and 5% starch of the fruit weight. The cellulose content of durian fruit skin is quite high, which is 50-60% of the fruit weight. Mahogany is a type of tree that sheds leaves in the dry season, its height can reach 35 meters. Mahogany leaves as a material containing lignocellulose can be used as raw material for making particle boards. Fiberglass is most often used in composite materials because of its reinforcing or strengthening properties. The weakness of fiberglass is that it is easy to crack and break, because the hardness of the fiberglass surface is too high, so that the propagation process is accelerated even with small defects or loads. The purpose of the study was to evaluate the physical and mechanical properties, as well as microscopic particleboard from the main organic waste materials in the form of bamboo leaves, durian skin, mahogany litter, bamboo shavings and a mixture of fiberglass. Testing of the physical and mechanical properties of particleboard refers to the JIS A 5908 (2003) test standard. The particleboard produced has the best properties, namely particleboard with type B board, namely a board with a density of 0.72 g/cm3; water absorption value of 44.16%; thickness expansion of 4.84%; MOR 266 kgf/cm2; MOE 20,447 kgf/cm2; and IB 2.15 kgf/cm2. The physical properties of particleboard against the parameters of density, water content, and thickness expansion have met the requirements of the JIS A 5908 (2003) standard and in the mechanical properties test, namely the parameters of MOE, MOR and IB all have met the requirements of the test standard.60 PagesSkripsi Sarjan

    PENGARUH PENGUMUMAN DIVIDEN TERHADAP HARGA SAHAM PERUSAHAAN PERTAMBANGAN BATUBARA DI BURSA EFEK INDONESIA TAHUN 2009-2013

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    Penelitian ini bertujuan untuk 1) memperoleh gambaran pengumuman dividen pada perusahaan pertambangan batubara yang terdaftar di Bursa Efek Indonesia 2) memperoleh gambaran harga saham pada perusahaan pertambangan batubara yang terdaftar di Bursa Efek Indonesia 3) memperoleh temuan pengaruh pengumuan dividen terhadap harga saham pada perusahaan pertambangan batubara yang terdaftar di Bursa Efek Indonesia. Objek dalam penelitian ini adalah perusahaan pertambangan batubara yang terlah go public dan listing di Bursa Efek tahun 2009-2013. Jenis penelitian yang digunakan adalah deskriptif dan verifikatif, metode yang digunakan dalam penelitian ini adalah kuantitatif dengan jenis penelitian event study. Hasil penelitian menunjukkan variabel pengumuman dividen berpengaruh terhadap harga saham. Hasil pengujian statistik menggunakan uji beda dua rata-rata (Uji Paried Sample T-test) menunjukkan terdapat perbedaan yang signifikan antara harga saham sebelum dan sesudah pengumuman dividen yang disebabkan oleh adanya pengumuman dividen. Maka hal ini menunjukkan bahwa pengumuman dividen segera diikuti oleh reaksi harga saham. Ada faktor lain seperti tingkat suku bunga, hukum permintaan dan penawaran, valuta asing dan faktor lainnya yang tidak diteliti dalam penelitian ini yang dapat mempengaruhi harga saham, sehingga dapat disimpulkan bahwa pengumuman dividen berpengaruh terhadap harga saham. Oleh karena itu penulis menyarankan agar perusahaan memperhatikan dalam pembagian dividen agar dapat meningkatkan nilai perusahaan yang berpengaruh baik terhadap harga saham pada perusahaan pertambangan batubara di Bursa Efek Indonesia. Kata Kunci : Harga Saham, Pengumuman Dividen This research examines the phenomenon of changes in the stock price of coal mining companies in Indonesia Stock Exchange. There are several factors that could affect the share price decline, one of which is the dividend announcement done by the company in the coal mining Indonesia Stock Exchange. The purposes of this research are to 1) obtain a dividend announcement on coal mining company listed on the Indonesia Stock Exchange 2) obtain a stock price on coal mining company listed on the Indonesia Stock Exchange 3) obtain findings dividend announcement effect on stock prices in the coal mining company listed on the Indonesia Stock Exchange. The Object of this research is a coal mining company that has been going public and listing on the Stock Exchange in 2009-2013. The types of research are descriptive and verification, the method used in this research is quantitative research the type of event study. The results showed variable dividend announcement effect on stock prices. Statistical tests using two different test average (Parried Test Sample T-test) showed a significant difference between the stock price before and after the dividend announcement due to the dividend announcement. This indicates that the dividend announcement was soon followed by the stock price reaction. There are other factors such as interest rates, the law of supply and demand, foreign exchange and other factors not examined in this study that could affect stock prices, so it can be concluded that the dividend announcement effect on stock prices. Therefore, the authors suggest that companies pay attention to the distribution of dividends in order to increase the value of good corporate influence on stock prices in the coal mining companies in Indonesia Stock Exchange. Keywords: Stock Price, Dividend Announcemen
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