1,720,954 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    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

    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

    Appropriate Similarity Measures for Author Cocitation Analysis

    Get PDF
    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

    Lahar at Kali Konto after the 2014 Eruption of Kelud Volcano, East Java: Impacts and Risk

    Get PDF
    Five days after the Kelud Volcano eruption of 13 February 2014, lahar occurred in several channels of the Volcano. Rainfall with intensity of 26 mm/hour mobilized pyroclastic material from the upper slopes of Kelud Volcano down the channel during 3.5 hour. Using this eruption as a case study, the aims of this paper are (1) to study the geomorphic impact of lahars and (2) to study future hazards and risks due to the potential of lahar source material and lahar repose area. To reach these two goals, we use both primary and secondary data. The primary data comprises an integration of remote sensing, GIS approach, and fieldwork control, in order to investigate the geomorphic impacts of lahars. Secondary data were collected through interviews and statistical approach in villages, in order to determine their perception to the risk of lahar. Morphogenic processes such as riverbank erosion, channel-widening and riverbed downcutting took an important role in generating the impact of lahar in Kali Konto. The medial and distal areas were affected more largely affected than the proximal area. This major impacts have been river widening and buried crop field inside of the channel. This result allowed us to provide recommendation to population living along those areas at risk, in order to be prepared against the eventuality of potentially large and destructive lahars

    Evaluasi Efektivitas Rencana Tata Ruang dalam Mengurangi Risiko Kekeringan di Kawasan Karst dengan Analisis Berbasis Sistem Informasi Geografis (Studi Kasus : Rencana Tata Ruang Kawasan Koridor Yogyakarta-Sadeng)

    No full text
    Tujuan utama penataan ruang di Indonesia adalah untuk mewujudkan ruang yang aman, nyaman, produktif, dan berkelanjutan. Implikasinya, semua rencana tata ruang di Indonesia harus dapat membawa masyarakat lebih aman dari bencana, yang berarti juga mengurangi risiko bencana. Rencana Tata Ruang Kawasan Koridor Yogyakarta-Sadeng adalah salah satu rencana tata ruang yang bertemakan pengembangan ekonomi. Dari temanya, rencana tersebut fokus pada tujuan produktivitas. Akan tetapi dari lokasinya, sebagian dari Kawasan KoridorYogyakarta-Sadeng merupakan kawasan karst yang sering terancam bencana kekeringan. Suatu kajian diperlukan untuk melihat apakah produk Rencana Tata Ruang Kawasan Koridor Yogyakarta-Sadeng juga telah memperhitungkan aspek keamanan dari bencana, khususnya bencana kekeringan. Penelitian dilakukan dengan membandingkan risiko bencana dari kondisi eksisting dengan risiko bencana yang muncul dari penerapan produk rencana. Metode yang dilakukan untuk menghitung risiko adalah dengan menghitung bahaya, kerentananm dan kapasitas baik pada kondisi eksisting maupun rencana. Penelitian ini juga melibatkan Sistem Informasi Geografis (SIG) sebagai alat utama. Hasil yang didapatkan adalah, apabila rencana sepenuhnya dilaksanakan, 66% wilayah studi akan mengalami penurunan risiko kekeringan, sementara itu 34% sisanya akan mengalami kenaikan risiko. Wilayah yang mengalami peningkatan risiko umumnya terletak pada kawasan yang direncanakan untuk dikembangkan dan kawasan sekitarnya. Peningkatan risiko yang terjadi pada wilayah tersebut berasal dari peningkatan kerentanan yang muncul dari rencana pengembangan. Hal yang dapat dipelajari dari penelitian ini adalah bahwa semua produk rencana tata ruang seharusnya mengantisipasi setiap dampak yang muncul dari rencana, khususnya dampak yang meningkatkan risiko bencana

    Dispelling the Myths Behind First-author Citation Counts

    Get PDF
    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

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    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
    corecore