1,720,968 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
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
Effects of composts obtained from hazelnut wastes on the cultivation of pepper (Capsicum annuum) seedlings
Get PDFMixing animal waste and agricultural waste in certain proportions forms agricultural compost through appropriate air, time, and water supply. One of their use areas is directly used as fertilizer, and the other one is used as a material that can partially or completely replace P (peat) in the PGM (plant growth media). In this study, the initial mixtures with an appropriate C/N ratio and moisture content, which were created by mixing cow manure, chicken manure, hazelnut husk, hazelnut pruning wastes, vegetable and fruit wastes, and dry leaves, were composted for 180 days. The physicochemical properties of the mature composts were determined. Their effects on the fruit yield (weight of fruits) and plant height of pepper seedlings were evaluated in pot and field experiments. N (nitrogen), P (phosphorus), Cu (copper), and Zn (zinc) content were the highest in C4 (2.59%, 1.12%, 83.11 mg/kg, and 605.3 mg/kg). K (potassium) and Mn (manganese) content in C3 (1.79% and 750.5 mg/kg) and Fe (iron) content in C1 (4025 mg/kg) were determined to be the highest. There was no phytotoxic effect of all composts on Lepidium sativum seeds. Except for pH and organic matter, C1 45%, C1 20%, C4 45%, C4 20%, and P 90% met the requirements for ideal media. The mean height of eight-week seedlings increased in media of C1 20%, C1 45%, C2 20%, C2 45%, and C4 20%, but decreased in media of C3 90%. In field studies, while the highest yield was determined in C3 as 1530 g/plant, the lowest yield was 765.5 g/plant in control. The highest mean height was observed in C3 at 76.33 cm; the lowest was 63.03 cm in control.Dzce University Coordinatorship of Scientific Research ProjectsNo Statement Availabl
Düzce ve çevresinde gıda olarak tüketilen yabani bitkilerin tüketim biçimleri ve besin öğesi değerleri
Get PDFTez (yüksek lisans) - Anadolu ÜniversitesiAnadolu Üniversitesi, Fen Bilimleri Enstitüsü, Biyoloji Anabilim DalıKayıt no: 687145Bu çalışmada Düzce ve çevresinde yayılış gösteren yabani gıda bitkilerinin yerel halk tarafından tüketim biçimleri ve bu bitkilerin gıda içerikleri araştırılmıştır. Düzce ve çevresinde, Falcaria vulgaris (Kazayağı), Tussilago farfara (Kabalak), Trachystemon orientalis (Kaldirik), Capsella bursa-pastoris (Çobançantası), Raphanus raphanistrum (Yabani turp), Chenopodium album subsp. album var. album (Sirken), Vaccinium myrtillus (Çalı çileği), Mentha longifolia subsp. typhoides var. typhoides (Yabani Nane), Thymus praecox subsp. skorpilii var. skorpilii (Kekik), Malva neglecta (Ebegümeci), Portulaca oleracea subsp. oleracea (Semizotu), Urtica dioica (Isırgan) olmak üzere 10 familyaya ait 12 bitki taksonu belirlenmiştir. Su miktarı en yüksek Kaldirikte (% 84,9), en düşük Yabani turpta (% 44) belirlenmiştir. Organik madde miktarı en yüksek Çalı çileğinde (% 94) belirlenirken en düşük Semizotunda (% 76) tespit edilmiştir. Protein miktarı en yüksek Yabani turpun yaprağında (% 32,26), en düşük Semizotunda (% 1,59) belirlenmiştir. Yağ miktarı en yüksek Kabalağın yaprağında (% 2,33), en düşük Semizotunda (% 0,33) tespit edilmiştir. Selüloz miktarı en yüksek Kekikte (% 28,1), en düşük Yabani turpun kök kısmında (% 8,35) belirlenmiştir. Tanen içeriği en yüksek Isırganda (229,9 mg. g-1), en düşük Yabani turpun kök kısmında (5,32 mg. g-1) olduğu saptanmıştır. Antioksidan kapasite en yüksek Kabalağın yaprak sapında (4,734 mmol TR g-1), en düşük Yabani turpun kök kısmında (1,004 mmol TR g-1) tespit edilmiştir. Araştırılan tüm bitkilerde, en yüksek mineral madde içeriği K, en düşük Cu minerali olarak belirlenmiştir
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