1,721,171 research outputs found
Acaulospora fanjing (Glomeromycota), a new species of arbuscular mycorrhizal fungi from Fanjingshan in China
No full textHe, Rong-Jian, Long, Chun-Li, Yao, Li-Mei, Jiang, Long (2021): Acaulospora fanjing (Glomeromycota), a new species of arbuscular mycorrhizal fungi from Fanjingshan in China. Phytotaxa 524 (3): 191-198, DOI: 10.11646/phytotaxa.524.3.
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
[[alternative]]The computerized model for erasing the misconceptions for physics
No full text[[abstract]]本研究的目的是針對國內的學生，以具體的策略建立修正錯誤概念之學習模式，並以
超媒體的軟體設計修正錯誤概念的基本學習系統，以比較本研究設計之電腦化模式的
學習活動，是否優於課堂之學習活動。於研究中，模式建構過程係以物理的「轉動平
衡」單元作例子，系統是根據模式說明的內容發展。因時間因素，系統針對消除轉動
平衡的錯誤概念而設計，不另建立模式的錯誤概念資料庫。
為了達成建構該模式、發展系統以及評量系統效度的目標，本研究的步驟有二：首先
以敘述性研究法進行物理錯誤概念消除法相關的文獻探討；參考國小課程，並與課程
相關教師晤談，以瞭解物理教學之現況。其次是實際調查國中小靜力學教材的基本概
念，由概念間形成的關係作系統分析，以建立模式和系統架構，設計和測試系統；並
抽取國三學生30人為受試對象，以評量學習成效。
評量結果顯示，以本研究的軟體進行修正錯誤概念的學習活動，與在課堂上進行學習
活動有顯著的差異，且實驗組的後測平均數高於控制組。使用本軟體的所有學生都喜
歡在超媒體環境中學習。
本研究提出一個具體而基礎的物理錯誤概念消除模式，供修正錯誤概念的數學參考，
以期進一步研究和發展。
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