1,720,961 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
Pemberdayaan Perempuan Dalam Produksi Masker Dan Penerapan Disiplin Memakai Masker Bagi Pekerja Harian Dalam Penanganan Wabah Covid-19
Full text linkThe Covid-19 outbreak that hit globally had amajor impact on economic activity in developing countries, especially Indonesia. In order to continue carrying out daily activities, especially working, it is necessary to comply with health protocol. Health protocols when doing activities include wearing masks, washing hands frequently with soap, avoiding crowds and maintaining a minumum distance of 1.5 meters from each other. The need for masks that are currentky not fulfilled by daily workers or laborers in Margomulyo village, Seyegan sub-district, Sleman regency, Province of Yogyakarta is primary need while working. The importance of education regarding the dangers of transmission of the Corona Virus or SARS-Cov-2 needs to be done to prevent the faster transmission of the virus. Therefore, the organization group ‘Aisyiyah in collaboration with Universitas ‘Aisyiyah Yogyakarta, empowers women tailors in neighborhood to produce cloth masks. Furthermore, these mask were distributed to daily workers in the Mrgomulyo village environment who had high mobility and had ahigh potential to transmit the Corona virus
Callus Induction and Differentiation on Melon From In Vitro Culture with The Addition of Indole Acetic Acid and Benzyl Amino Purine Growth Regulator
Full text linkMelon plants (Cucumis melo L.) are susceptible to disease attacks primarily caused by viruses. One of the viruses often attacking melon plants is Cucumber mosaic virus (CMV). Previous studies have shown that melon callus produced from in vitro culture is detected to have CMV resistance gene (Creb-2). However, the trait of resistance to CMV in that melon (F2) is still segregated. To know the stability of the Creb-2 gene, further research is needed to detect the gene in the differentiated callus. This study aims to callus induce and callus differentiate melon. Firstly, melon seeds were grown on ¼ MS medium with addition of 2 mg / L 2.4-Dichlorophenoxyacetate and 1 mg / L BAP (Benzyl Amino Purine) to grow callus. Secondly, the callus was differentiated in MS medium with the addition of 2,4-D , BAP and IAA in different doses. 0 mg / L; 0.01 mg / L 2.4-D and 0.1 mg / L BAP, and MS medium with 0.01 mg / L; 0.1 mg / L; 1 mg / L IAA (Iodole Acetic Acid) and 0.1 mg / L BAP. The results showed that callus was successfully differentiated into root and it grew optimally in MS medium with 0.01 mg / L 2.4-D: 0.1 mg / L BAP and 1 mg / L IAA: 0.1 mg / L BAP . Therefore the roots can be used as isolation samples and DNA amplification to detect stability of the Creb-2 gene
Indeks Mitosis dan Jumlah Kromosom Kentang Hitam (Coleus tuberosus)
Full text linkKentang hitam (Coleus tuberosus) merupakan jenis kentang yang paling langka dari jenis kentang lainnya. Tanaman kentang hitam yang berasal dari Afrika Barat ini memiliki umbi yang tergolong kecil dan daging umbi berwarna hitam. Kurang optimalnya pemanfaatan kentang hitam sebagai sumber karbohidrat non beras sejalan dengan berkurangnya penelitian dan pengembangan komoditas tersebut. Pemanfaatan kentang hitam sebagai sumber karbohidrat masih sangat kurang sehingga ketertarikan riset dan pengembangan komoditas kentang hitam juga rendah. Tanaman Solanaceae merupakan tanaman yang memiliki variasi morfologi dan jumlah kromosom terbesar. Tujuan penelitian ini adalah untuk mengetahui waktu mitosis aktif dan jumlah kromosom kentang hitam. Sehingga hal ini akan menambah data base bank genetik. Penelitian dilakukan pada bulan Mei 2019 hingga Desember 2019 di Laboratorium Terpadu, Universitas ‘Aisyiyah Yogyakarta. Bahan tanaman yang digunakan adalah ujung akar kentang hitam yang dipreparasi kromosomnya menggunakan metode squashing. Preparasi kromosom dimulai dari pukul 06.00 WIB sampai pukul 13.00 WIB dengan interval waktu preparasi kromosom setiap 30 menit dengan 3 ulangan. Hasil penelitian didapatkan bahwa waktu mitosis kentang hitam (Coleus tuberosus) berkisar antara pukul 07.00-11.00 WIB, sedangkan fase prometafase ditemukan pada pukul 07.30 WIB. Jumlah kromosom diploid (2n) kentang hitam adalah 32 kromosom
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
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