1,721,042 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
PAKET TEKNOLOGI FORMULASI PAKAN INDUK IKAN BERONANG (Slganus sp.) GUNA MENINGKATKAN KUALITAS TELUR
Get PDFPeriode percobaan tahun pertama, kedua, dan keliga dari serangkaian 3 tahun penelitian mengenai formulasi pakan untuk induk ikan beronang (Siganus sp.) guna meningkatkan kualitas telur telah selesai dilakukan. Diduga bahwa renciahnya tingkat kelulushidupan larva pada minggu-minggu pertama setelah menetas, yaitu kurang dari 10% (Ayson dan Lam, 1993; Duray et al., 1994; Subandiyono dkk., 1995, 1998, 1999), diduga berkaitan erat dengan kualitas pakan yang dikonsumsi induk selama proses pematangan gonad (Sargent et al., 1989; Duray et al., 1994; Bell et al., 1997). Ukuran diameter lelur merupakan salah salu indikator periling dari kualitas telur. Sedangkan kuning telur ('yolk') merupakan bagian terbesar dad telur dan berperan sebagai sumber energi serla maleri pada pemberdukan embrio (Kamler, 1992); dan )(arena du kuantitas serla kualitas dari kuning telur menenlukan keberhasilan perkernbangan embrio dan post-embrio (Nikolskij, 1974 dalam Kamler, 1992). Pakan induk yang berkualitas, yaitu sesuai dengan kebutuhannya, akan mampu meningkatkan nilai kualitas telur yang dihasilkan dan yang pada akhirnya meningkatkan nilai kelulushidupan larva (Duray et al., 1994).
'Feed additives' seperti astaxanthin, vitamin C ('ascorbic acid'), dan vitamin E ('tocopherol'), balk secara sendiri-sendiri maupun bersama-sama, diduga mempunyai peran yang vital dalam proses perkembangan gonad, reproduksi, sistem ketahanan, dananti-oksidan. Ditemukannya astaxanthin dengan konsentrasi yang tinggi pada gonad beberapa spesies dad klas cephalopoda dan holothuroidea, maka diduga bahwa astaxanthin berpartisipasi dalam proses reproduksi (Matsuno dan
1989). Sedangkan konsentrasi astaxanthin yang tinggi pada bagian mata uclang krill diduga berkaitan eral dengan tungsi visualisasi mata (Suzuki, 1981). Dengan demikian, astaxanthin sangat berperan terhadap kemampuan bewail dalam mendeteksi adanya makanan, disamping tungsi biologis lainnya (Lee, 1983; Furr et al., 1992; Wee dan Tacon 1992). Kebuluhan vitamin C terlihat meningkat pada saat pembentukan gonad (Parviainen dan Nyyssonen, 1992). Selain berperan terhadap peningkatan 'immune system' (Parviainen dan Nyyssonen, 1992), vitamin C juga mampu meningkatkan kelangsungan hidup dan pertumbuhan ikan (MacConnell dan harrows, 1993). Vitamin C bekerja secara sinergis dengan vitamin E dalam merninimalkan peroksidasi lipid membran sel (Cowey dan Sragent, 1979). Proses ini sangat penting guna menurunkan toksisitas oksigen aktif dalam sel (Parviainen dan Nyyssonen, 1992). Vitamin E diduga berperan penting terhadap proses vitellogenesis (Kamler, 1992), selain kings' struktural dalam 'lipid bilayers' dad membran sel (Lee, 1983). Meskipun berbagai fungsi ke liga jenis 'teed additves' tersebut telah dikajl, namun mekanisme lebih mendalam belum diketahui. Informasi tentang kandungan yang lepat dalam pakan buatan untuk induk ikan juga masih sangat terbatas.
Percobaan pada tahun pertama menitik-beratkan kebutuhan ikan akan protein terhadap total energi (E/P ratio) pakan; sedangkan topik percobaan pada tahun kedua adalah peran PUFA-W3 dan -W6 dalam pakan terhadap peningkatan kualitas telur yang dihasilkan. Pada penelitian tahun ketiga ini dikaji peran tiga jenis 'feed additives' (yaitu astaxanthin, ascorbic acid polyphosphate, dan d-a-tocopherol) dalam meningkalkan perkembangan gonad dan kualitas lelur yang dihasilkan induk ikan beronang (Siganus sp.). Tujuan jangka panjang dari penelitian ini adalah diketahuinya formulas' pakan yang tepat bagi setiap tahap perkembangan ikan beronang mulai dari tahap larva hingga induk guna menunjang berkembangnya hatchery sada mendukung kelangsungan kegiatan budidaya ikan beronang; sedangkan tujuan khusus yang ingin dicapai adalah diketahuinya formulas' pakan yang tepat untuk induk ikan beronang agar mampu memproduksi telur herkualitas tinggi serta berkesinambungan. Target jangka pendek yang ingin dicapai adalah terpecahkannya kendala utama pada pengadaan benih, yaitu dalam hal keinalian larva yang tinggi pada minggu pertama setelah penetasan.
Sebanyak 120 dad 125 ekor calon ikan uji yang tersedia diseleksi sebagai ikan uji. 'Ran uji ,dengan bobot tubuh individu rata-rata (X±S.E.) sebesar (423.8±22.0), (403.4±18.2), (443.1±18.6), dan (391.4±17.8) gram dimasukkan ke dalam 4 buah wadah uji masing-masing untuk perlakuan I, II, Ill, dan IV untuk proses pemeliharaan selama 4 bulan. Pakan uji yang diberikan adalah pakan terbaik pada percobaan sebelumnya (yaitu pakan dengan kandungan protein sebesar 46.0%, nilai E/P ratio sebesar 9.0 kkal/gram protein, dan perbandingan asam lemak W3 terhadap W6 sebesar 1.03) dan &Nan komposisi penambahan astaxanthin, vitamin C, dan vitamin E masing-masing berbanding sebagai (1:1:1), (1:1:0), (1:0:1), dan
Pakan uji diberikan 3 kali sehari pada pagi, siang dan sore hari. Pemberian pakan dilakukan sedikit demi sedikil hingga ikan kenyang ('ad sallation'). Peubah utama yang dianalisis meliputi pertumbuhan. perkembangan gonad, clan frekuensi pemijahan ikan uji; kualitas pakan uji; dan laktor lingkungan yang berpengaruh terhadap nilai dari peubah tersebut. Data pertumbuhan yang diperoleh dianalisis nilai tengahnya dengan 'ANOVA' menggunakan uji-t pada selang kepercayaan 95 dan 999/0. Data yang lain dianalisis secara deskriptit.
Basil inenumulthan bahwa pakan uji berpengaruh nyata (P0.01) pada selang kepercayaan 99%. Perlakuan II berbeda nyata (P0.05) terhadap perubahan bobot ikan uji. Berdasarkan data diketahui pula bahwa ikan beronang pada setiap perlakuan memproduksi telur dengan nilai kualitas kumulatif yang bervariasi; namun terlihat bahwa pakan dengan komposisi perbandingan (1:1:1) clan (1:0:1) cenderung bersitat superior. Dengan demikian diduga bahwa pada pra-konclisi yang homogen maka koinbinasi astaxanthin dan vitamin E dalam pakan mempunyai peran sinergis lerhadap perkennbangan gonad serta peningkalan kualitas telur yang dihasilkan. Bilamana dibandingkan dengan Irekuensi pemijahan pada penelitian HBVI/2 yang jarang terjadi, maka pada penelitian HBVI/3 pemijahan terjadi pada setiap bulan dan bahkan untuk semua perlakuan serta dengan jumlah induk yang memijah jauh lebih banyak (tingkat kejadian per perlakuan lebih tinggi). Karena itu diduga bahwa formulas' pakan pada penelitian HBVI/3 aclalah sesuai dengan kebutuhan induk ikan beronang
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Get PDFWe 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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
- …
