1,720,954 research outputs found
Python scripts for pan genomic data and blastp data
No full textThe scripts meant for data probing and processing of genomic data and blastp result
Metal interacting carbonic anhydrase of Dunaliella viridis and pseudomonas stutzeri
No full text汞是一种有毒元素，它能损伤细胞体系的许多生理功能。在汞污染的环境中生存下来的细菌，会获得或者激活某些基因，这些基因能够将金属汞转化为无毒形式的汞。在高盐和有毒金属的压力胁迫下，基因构成和蛋白质包括一些酶会发生特定的变化，以应对不利的环境。碳酸酐酶是一种普遍存在的与呼吸系统疾病和癌症相关的酶。我们通过生物信息学分析，包括同源性建模、锌金属相互作用预测、碳酸酐酶序列分析和汞解毒/碳酸酐酶基因的 pan 基因组分析，探讨了微生物对高盐和高汞环境的应对策略。结果表明，为了应对不利环境，碳酸酐酶表面获得了较多的酸性残基，可能形成了带正离子的盐桥。这样可以减少其表面积，同时还能拥有更多的极性残基。在研究和模拟的结构中，锌与组氨酸残基氮之间的相互作用非常保守，只在催化区域的序列模式有少量变化。Pan 基因组分析显示，碳酸酐酶和汞结合蛋白的基因都位于独特的、共享的核心区域，表明这些基因存在多个拷贝。本研究将有助于了解高盐、高汞胁迫环境下耐盐微生物的典型特征和遗传迁移元件。基因组结构的典型变化是由环境因素引起,这种变化不仅由环境中非生物组分驱动，也受到生物组分驱动
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
- …
