1,720,956 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
Skrinning Fitokimia Pandanus julianetii Sebagai Sumber Pangan Fungsional Lokal Papua
No full textPandanus julianetii or the local name is tuke, also called kelapa hutan is a commodity plant in the Papua Mountain area and has long been used by local people as food. This aims to identify bioactive compounds through phytochemical screening in extraction to find out and study the potential of Pandanus julianetii as a local functional food of Papua. Raw Pandanus julianetii was obtained from Yahukimo District. Pandanus julianetii used three treatments namely raw, burned, and smoked. Furthermore, the stages of sample preparation are made into powder and extracted. Phytochemical screening analysis includes alkaloid, flavanoid,and tannin tests. Phytochemical screening resulted showed that Pandanus julianetii contains flavonoids, alkaloids, saponins and tannins which are bioactive components and have functional properties
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
Studi Daya Cerna Protein Bubur Instan Berbahan Baku Sorgum Lokal Varietas Coklat (Sorghumbicolor L. Moench) Terfermentasi
No full textSorgum merupakan serealia kelima terpenting didunia dan memiliki kandungan gizi yang tinggi. Namun, memiliki kekurangan yaitu rendahnya nilai daya cerna protein, yang disebabkan oleh adanya senyawa antigizi seperti tanin, asam fitat, antitripsin dan ikatan sulfida. Salah satu upaya untuk meningkatkan nilai daya cerna protein sorgum dilakukan proses fermentasi alami, yang dilakukan selama 84 jam pada suhu 27 0 C. Hasil fermentasi kemudian ditepungkan untuk diaplikasikan dalam pembuatan bubur instan. Bubur berbahan sorgum saja akan memiliki kualitas protein yang rendah, karena sorgum memiliki asam amino pembatas yakni lisin, sehingga untuk meningkatkan kandungan gizi bubur instan maka dilakukan suplementasi dengan kacang hijau yang merupakan sumber protein dan kaya akan lisin.
Penelitian terdiri dari 2 tahap, meliputi : Penelitian tahap I bertujuan untuk mengetahui perubahan nutrisi yang terjadi selama proses fermentasi sorgum, meliputi perubahan kadar air, kadar protein, kadar kafirin, kadar lemak, kadar pati, senyawa antinutrisi (tanin, fitat, antitripsin) dan daya cerna protein in vitro. Penelitian tahap II bertujuan untuk mendapatkan formulasi bubur instan optimum yang mampu meningkatkan daya cerna protein. Optimasi formulasi dilakukan menggunakan teknik linear programming . Parameter yang diamati meliputi perubahan kadar protein, kadar kafirin, senyawa antinutrisi (tanin, fitat, antitripsin), daya cerna protein in vitro dan profil asam amino.
Hasil sorgum yang difermentasi alami dan ditepungkan mengalami perubahan nutrisi kadar air dari 8,978% menjadi 7,478%, kadar protein dari 10,282% menjadi 8,071%, kadar kafirin dari 29,076% menjadi 7,856%, kadar lemak dari 1,313% menjadi 0,923%, kadar pati dari 68,523% menjadi 34,365%, senyawa antinutrisi: tanin dari 6,481 mg/g menjadi 0,740 mg/g, fitat dari 0,11 mg/g menjadi 0,09 mg/g, antitripsin dari 27,277 TIU menjadi 17,627 TIU serta daya cerna protein in vitro dari 49,528% menjadi 73,726%, dan dari paramater-parameter tersebut, faktor yang paling dominan terhadap daya cerna protein sorgum adalah tanin, sementara itu, hasil formulasi bubur instan dengan linear programming agar diperoleh daya cerna protein in vitro terbaik adalah 70 g tepung sorgum ampok dan 30 g tepung kacang hijau. Hasil analisa kimia formulasi bubur instan tersebut adalah sebagai berikut kadar protein 9,422% (bk) , kadar tanin 0,324 mg/g , kadar fitat 0,098 mg/g , kadar antitripsin 15,8 TIU, kadar kafirin 6,002% dan daya cerna protein in vitro 74,084%, dengan faktor yang paling dominan terhadap daya cerna protein adalah antitripsin, sedangkan hasil profil asam amino bubur instan formulasi diketahui terjadi peningkatan kandungan lisin dibandingkan bubur instan kontrol.
Pada kesimpulannya daya cerna protein sorghum yang rendah dipengaruhi oleh dua faktor. Faktor internal yaitu jenis protein sorgum (kafirin), yang mampu menghasilkan ikatan disulfit; dan faktor eksternal yaitu senyawa antigizi (tanin, fitat dan antitripsin)
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
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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