1,720,955 research outputs found
Identification of Soil Salinity Due to Seawater Intrusion on Rice Field in the Northern Coast of Indramayu, West Java
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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
Pengaruh Kombinasi Pupuk Organik dan Anorganik terhadap Sifat Kimia Tanah, dan Hasil Tanaman Jagung di Lahan Kering Masam
Full text link<p><strong>ABSTRACT</strong></p><p>Effect of Organic and Inorganic Fertilizers Combination on Soil Productivity and Crop Yield of Maize Farming in Acid Upland Soil. Continous use of inorganic fertilizers on maize farming in acid upland soil causes negative impacts on soil productivity and environment. The research aimed was to study the effect of manure and sludge combined with inorganic fertilizers to the changes in soil chemical properties, growth, production and profit of maize farming in acid upland soil. The research was conducted at Tamanbogo Experimental Farm, East Lampung from March to July 2013 using a randomized block design with four replications. The treatment consisted of 5 t/ha of cattle manure, 5 t/ha of dried sludge (by product of biogas production) and its combination with 50% and 75% of recommended rates of inorganic fertilizers (RRIF). The results showed that application of manure or sludge in<br />combination with 50% RRIF gave the best growth and yield of maize. The plant height was between 177.85-195.75 cm, the dry grain yield was between 4.01-4.45 t/ha and the harvest residues was between 4.62-4.58 t/ha. Most of maize biomass were accumulated at the grain (46.20%) and the rest was almost evenly distributed on the roots, stems, leaves, cob and husk. The biggest ratio of dry grain to the harvest residues was 89.52%, it was achieved by the treatment of sludge with 50% RRIF.</p><p>Keywords: organic fertilizers, inorganic fertilizers, maize growth and yield</p><p>ABSTRAK<br />Penggunaan pupuk anorganik secara terus menerus pada usahatani jagung di lahan kering masam menimbulkan dampak negatif terhadap produktivitas tanah dan lingkungan. Penelitian bertujuan untuk mempelajari pengaruh penggunaan pupuk kandang dan sludge yang dikombinasikan dengan pupuk buatan/anorganik terhadap perubahan sifat kimia tanah, pertumbuhan, produksi dan keuntungan pada usahatani jagung di lahan kering masam.<br />Penelitian dilakukan di KP Tamanbogo, Lampung Timur pada bulan Maret sampai Juli 2013 menggunakan Rancangan Acak Kelompok dengan 4 ulangan. Perlakuan terdiri dari 5 t/ha pupuk kandang, 5 t/ha sludge (hasil samping pembuatan biogas) dan kombinasinya dengan 50% dan 75 % dosis pupuk anorganik rekomendasi (DPAR).<br />Hasil penelitian menunjukkan bahwa kombinasi antara pupuk kandang atau sludge dengan 50% DPAR memberikan pertumbuhan dan hasil jagung terbaik. Tinggi tanaman mencapai 177,85-195,75 cm, hasil biji pipilan kering antara 4,01-4,45 t/ha dan brangkasan sisa panen antara 4,62-4,58 t/ha. Sebagian besar biomassa jagung terakumulasi pada<br />bagian biji (46,20%) dan sisanya tersebar hampir merata pada bagian akar, batang, daun, janggel, dan kelobot. Rasio pipilan kering jagung terhadap brangkasan sisa panen terbesar adalah 89,52% yang dicapai oleh perlakuan sludge disertai pupuk anorganik pada 50% DPAR.</p><p>Kata kunci: pupuk organik, pupuk anorganik, pertumbuhan dan hasil jagung</p></jats:p
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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