1,721,283 research outputs found
印度棗果實疫病
本省印度棗(Zizyphus mauritiana L.)果實遭受疫病菌(Phytophthora palmiuora)
為害,出現水浸斑及果實外表變黑色等病徵,經人工接種印度棗,’可產生與田間相同的病徵,確定本菌的病原性。本菌最適宜生長溫度為30℃,低於13℃,超過35℃皆不能生長。在採收期如遇連續陰雨,本病會發生嚴重,並造成貯藏病害
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
We 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
We 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
We 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
[[alternative]]"Chinese Signs Explorer" CD, The Design and Development of a Chinese Computer Assisted Language Learning (CALL) Program
[[abstract]]Can Chinese public signs be used as instructional materials? How can a large variety of authentic Chinese public signs be compiled as interactive and fascinating instructional materials?
Multimedia offers some effective solutions for self-instruction or for language teachers who aim at making their classes rich in content using authentic materials. Certain applications can promote communicative competence, offer a balance of guided learning and free navigation and provides corrective feedback.
This work focuses on the design and development of a computer assisted language learning (CALL) program “Chinese Signs Explorer”. The instructional CD is based on the communicative language teaching (CLT) approach and uses multimedia human computer interaction (HCI) to introduce Chinese L2 learners with a large variety of public signs in China and Taiwan and to assist students to fully function in a Chinese speaking environment.
The program presents students with a comprehensive, easy to use database of over 470 Chinese public signs divided to 25 subject-oriented units. Each unit introduces users with a selection of visual authentic materials, English translation, Pinyin romanization, audio files for correct pronunciation, grammatical and cultural glosses, practice and testing.
Chinese and English overall search application, help and user-friendly navigation are available throughout the program.
For a better adjustment to students needs and in order to enhance the learning process, the program presents all learning materials (including the practice and testing sections) in both simplified and traditional Chinese forms which can be displayed at any given time. In addition, the program offers learning management applications such as a study record save and load functions for efficient learning.
It is believed that “Chinese Signs Explorer” program can serve both as instructional material and a reference database, it can assist Chinese L2 learners to better understand Chinese public signs as well as identify the nature of new signs (such as prohibition, caution, direction etc.). Thus, “Chinese Signs Explorer” may not only teach L2 learners Chinese through signs, it may also ease their adjustment and to a Chinese speaking environment both in Taiwan and China.
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