1,720,970 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
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
PENENTUAN JARAK ANTAR STASIUN HUJAN DENGAN METODE KAGAN RODDA DI DAS KEDUNGLARANGAN KABUPATEN PASURUAN PROVINSI JAWA TIMUR
Full text linkKualitas dari data dasar yang akan digunakan untuk suatu analisa sungai tergantung dari seberapa jauh pos hidrologi yang ada, dapat memantau karakteristik hidrologi dalam suatu daerah aliran sungai tersebut. Berapa jumlah pos hidrologi yang perlu ditempatkan dalam suatu DAS untuk memantau karakteristik hidrologi secara akurat dan benar. Permasalahannya adalah apakah jumlah pos-pos yang tersedia yang ada saat ini dalam suatu daerah aliran sungai sudah memadai, apakah jumlah dan lokasinya dapat memantau karakteristik hidrologi daerah tersebut. Adalah tidak mungkin dan diperlukan suatu biaya yang sangat mahal jika jumlah pos hidrologi sangat banyak. Dalam kondisi dimana jumlah pos terlalu banyak maka untuk melakukan analisa hidrologi kadang-kadang timbul masalah, pos mana yang akan digunakan apakah seluruhnya atau sebagian saja. Tujuan dari penelitian ini adalah untuk mengetahui perbandingan antara stasiun hujan eksisting dan stasiun hujan menggunakan metode Kagan Rodda. Stasiun hujan eksisting mempunyai 16 stasiun hujan, setelah menggunakan metode Kagan Rodda menjadi 13 stasiun hujan dengan kesalahan relatif 1,977 %.Kata kunci: jarak, stasiun hujan, Kagan Rodd
ANALISA PENYEBARAN STASIUN HUJAN TERHADAP DEBIT BANJIR RANCANGAN PADA DAS KEDUNGLARANGAN (Kabupaten Pasuruan Jawa Timur)
Full text linkAnalisa hidrologi merupakan satu bagian analisis awal dalam perancangan bangunan hidrolik. Analisis hidrologi membutuhkan data yang terdiri dari data curah hujan, data debit dan data iklim. Hal ini membutuhkan beberapa jumlah stasiun hujan dan penempatan lokasi stasiun yang tepat. Untuk menetapkan jumlah hujan yang jatuh di dalam suatu DAS, dibutuhkan sejumlah stasiun hujan yang ada pada DAS yang bersangkutan, Ketelitian pengukuran data hujan dipengaruhi oleh jumlah stasiun hujan dan pola penyebaran di dalam DAS. Penempatan stasiun hujan yang tepat, jumlah stasiun hujan, pola penyebaran akan dapat diperoleh data yang akurat mengenai kedalaman, penyebaran dan intensitas hujannya. Kondisi persebaran stasiun hujan di DAS Kedunglarangan tergolong relative banyak, dimana saat ini terdapat 16 stasiun hujan pada wilayah DAS seluas 267,3 km2. Menurut standar WMO cukup diwakili oleh 2 stasiun hujan, sedangkan Bleasdale menyarankan 4 stasiun. Varshney menetapkan 8 stasiun sebagai angka yang ideal, kemudian Sugawara menyarankan 10 atau 15 stasiun hujan
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Bed configuration under sluice gate at Sandy–Loam Bed Channel
Full text linkSluice gate operation is necessary to keep the continuity the design discharge. The mis-operation of sluice gate occurs endanger stucture and destruct the bed irrigation channel. Investigation about sluice gate operation and bed configuration are needed to avoid the destruction of the structure bed irrigation channel. The changes in bed form result from interaction of the flow, fluid and bed material. The aim of this paper is to investigate the influence of different flow parameter, height of opening gate and types of bed material. Fourty five runs were executed at different discharge started from 1.0 l/s to 5.0 l/s with an increment of 0.5 where each discharge has five different opening gate to get all characteristics of bed configuration. The material used in the experiments were sandy loam. The experimental were conducted in an acrylic side flume with recirculating water at Applied Hydraulics Laboratory in Water Resources Engineering Faculty, Brawijaya University, Malang, Indonesia. The result of investigation showed that the bed configuration of sandy loam is ripple for most of the condition. At the same opening gate and various discharge the configuration is start by plane bed (no motion) and ripplee. Meanwhile, for the same discharge at the various opening gate occurs the ripple bed configuration. The various velocity that occur during the runing process cause the changing of bed configuration. For the greater discharge at the same opening gate occur the highest velocity. This condition cause the grain sediment material of the bed channel lift up and start to moving. This result is suitable with equation approaches from the van Rijn, Simon Richardson and Garde Albertson
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