1,720,960 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
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
Karakterisasi Morfologi dan Anatomi Tanaman Jambu Biji (Psidium guajava L.) di Taman Buah Mekarsari Bogor
No full textJambu biji merupakan salah satu komoditas buah di Indonesia yang kaya akan manfaat. Terdapat lima varietas jambu biji di Taman Buah Mekarsari. Karakterisasi perlu dilakukan terhadap tanaman jambu biji sebagai upaya pelestarian tanaman dan juga sebagai informasi karakter atau data referensi pengetahuan. Penelitian ini dilakukan untuk mempelajari serta melengkapi data karakterisasi morfologi dan anatomi tanaman jambu biji di Taman Buah Mekarsari. Metode yang dilakukan yaitu penentuan dan pengambilan sampel, pengamatan karakter morfologi dan anatomi, serta pengamatan data sekunder tanaman. Karakter morfologi dari beberapa varietas menunjukkan ciri yang berbeda, terutama pada daun dan buah. Karakter anatomi dari lima varietas menunjukkan hasil yang sama pada stomata dengan tipe anomositik dan dua trikoma tipe berkelenjar, yaitu: uniseriat dan multiseria
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
Keanekaragaman lumut hati dan lumut tanduk pasca erupsi di taman nasional gunung merapi, yogyakarta
No full textMerapi is an active volcano, its latest eruption was occurred in October 2010. Merapi Mountain National Park Yogyakarta, characterized by tropical rain forest and located at the southern slopes of the vulcano. The eruption in October 2010 spreaded hot cloud and caused forest fires that damaged most of the vegetation where the bryophytes inhabit. This study aims to describe species diversity and construct identification key of the bryophytes, especially the liverworts and hornworts, of the national park post-eruption of Merapi. Sampling was conducted sixteen months after the latest eruption at three locations; Pronojiwo Hill, Kinahrejo, and Gandok. Purposive sampling method was applied to obtain samples of the bryophytes. A total of 20 bryophytes species representing fourteen genera and eight families, were found in the study. Those species consist of twelve leafy liverworts, five thalloid liverworts, and three hornworts. Arboreal bryophytes were only found in the Pronojiwo Hill, they were leafy liverworts. Terrestrial bryophytes occurred in all study areas. The liverworts and hornworts diversity in Pronojiwo Hill where trees still exist was higher than that in Kinahrejo and Gandok where the trees absence. Thalloid liverworts Marchantia treubii was common in the Merapi Mountain National Park
Keanekaragaman Lumut di Jalur Pendakian Cemoro Sewu Gunung Lawu, Jawa Timur.
No full textTropical forests have higher diversity of bryophytes species than other regions in the world. Diversity and abundance of bryophytes depend on the altitude. This study aims to inventory the diversity of bryophytes of Mount Lawu and their distribution based on the altitude and type of substrate. Sampling was carried out along a hiking trail of Cemoro Sewu. Total of 85 species (34 families, 56 genera), consist of 55 species of mosses (17 families, 35 genera), 28 species of leafy liverworts (15 families, 19 genera), one thalloid liverworts, and one hornworts species were found in the study. Dicranaceae (19 species, seven genera) and Bryaceae (eight species, four genera) have higher much of species. Those mosses were found mostly terrestrial growing on rock substrate. Bryophytes distribution evenly on upper mountain zones as well as at sub-alpine zone. The diversity of leafy liverworts more higher in the mountain zone (2000-3000 masl) than in sub-alpine zone (3000-3265 masl)
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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