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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
(65(4):406-419) Analysis of Seed Purity for the Bell Pepper (Capsicum annuum) Hybrid Using SSR Markers
No full text種子純度檢定是一代雜交種子生產中品質管控的關鍵性工作之一。利用生育特性的檢測 (grow out test; GOT) 方式僅比較植物生長至成熟期的外觀差異，檢測耗時且受制於環境；故亟需建立一個快速、可靠的DNA 檢測模式。本研究目的擬開發具有專一性與共顯性的簡單序列重複 (simple sequence repeat; SSR) 標誌，應用於番椒雜交種親本與雜交種子純度之檢測。利用2 個番椒雜交種及親本，篩選374 組SSR 引子對，結果獲得12 個高訊息的SSR 標誌；又取得其中5 個關鍵性SSR 標誌，進行3 個番椒雜交種 (No. 5、No. 6、No. 7) 的種子純度之檢定，經各取120 個樣品之檢測結果顯示，3 批次的雜交種子純度分別為99.2%、98.3% 和95.8%。利用SSR-PCR (polymerase chain reaction) 分析可篩選出自交種子之汙染株，也與GOT 檢測結果吻合。試驗顯示，SSR 標誌可作為快速、有效之檢測工具，有效地應用於番椒商業雜交種子純度的檢定。
Identification of seed purity of F1 hybrids is a critical factor of quality control in the production of hybrid seeds. The grow out test (GOT) is based on the morphological characters of plants grown to maturity. However, GOT may influence by the environment and is time consuming, there is necessary to identify a rapid and reliable test like DNA based assay for this purpose. The objective of this study was to generate specific and co-dominant SSR (simple sequence repeat) markers for discrimination of parental lines and the subsequent assessment of seed purity in pepper hybrids. Genomic DNA from two hybrids and their parental lines were screened with 374 SSR primer pairs and 12 informative SSR markers were identified. Among the informative SSR markers, five key markers were selected for seed purity test for No. 5, No. 6, and No. 7 hybrids. A total of 120 hybrid individuals from each hybrid were tested using the identified markers, and results showed the seed purity rate for the three hybrid seed lots were 99.2, 98.3 and 95.8%, respectively. The contamination of inbred seeds obtained by SSR-PCR analysis was comparable to the GOT method. These results indicated that SSR markers could be used as a rapid and efficient tool in testing the seed purity of the commercial pepper hybrid
The Evolution and Cultivation of Domesticated Capsicum Species
No full text番椒原生於中、南美洲，據Eshaugh分類番椒屬（Capsicum）涵蓋36個種（species）以上。番椒野生種歷經馴化迄今，包含各樣果型、果色、形狀與辣味。其中五個常見的野生馴化種C. annuum，C. baccatum，C. chinense，C frutescence，C pubescence，已成為重要經濟栽培種，並以C. annuum為最廣泛栽培且經濟價值最高的‘種’，此包含所有甜椒和部分辣椒品種。其二是C. baccatum代表品種如‘Aji ’，此為墬飾狀果形。其三C. chinense則包含以高辣度著稱的品種‘Habanero ’。而C. frutescence包含著名品種‘Tabasco ’，為鳥椒的一種，廣泛分布於低海拔的熱帶美洲和東南亞地區。C. pubescence則明顯與其他四個馴化栽培種迥異，其葉身多毛，具有黑色種子，為高海拔冷涼型栽培種，代表品種如‘Rocoto ’。
Capsicum is native to Central and South America, according to Eshbaugh (1993) indicates the genus of Capsicum comprise of more than 36 species. Through the process of moving wild species toward domestication that include a range of fruit size, color, shape and pungency. Presently, five wild domestic species of Capsicum that contain C. annuum, C. baccatum, C. chinense, C. frutescense and C. pubescens have been cultivated economically. Among these, C. annuum is the mostly wildly cultivated and economically important, and which including all of the sweet bell as well as the hot pepper. The second, C. baccatum contains the "Aji" variety that exhibit a pendant pod type. The third, C. chinense contains the variety of "Habanero" which known for the intense heat. The fourth, C. frutescense includes the famous "Tabasco" variety and known as a "bird pepper" that is widely distributed in lowland tropical America and in southeastern Asia. Additionally, the C. pubescens is the most distinct cultivated domestic species by conspicuous leaf pubescence and dark seeds, and a cool-growing highland species such as the variety of "Rocoto"
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
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