1,720,979 research outputs found
Isolation and Characterization of Gene Encoded Tonoplast Intrinsic Proteins from Halophyte Plant Salicornia herbacea
Full text linkSalicornia herbacea is a succulent halophyte plant which grows optimally under 300 mM NaCl. These plants may have acquired specific genes that are essential for tolerating salt. To obtain insight into the comprehensive molecular characteristics related to the salt tolerance mechanism, we performed a screening of salt-inducible genes in S. herbacea shoots by differential display. A comparative analysis of gene expression between control and salt-stressed conditions led to the detection of 6 cDNA clones induced by salt. Sequence analysis and database searching revealed that all of the clones have homology with tonoplast intrinsic proteins. We designated them as ShTIP1 to ShTIP6 (S. herbacea Tonoplast Intrinsic Proteins). One the identified genes, ShTIP6 showed higher induced under salt stress compared to other ShTIP genes. In this study, we characterized the expression of ShTIP6 in different organs and stresses
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
The Combination of Planting Media and Fungicide Immersion on the Growth of Moon Orchid (Phalaenopsis sp.) Acclimatization Stage
No full textAcclimatization is a critical stage in the propagation of tissue culture plants, because at this stage the plant must be able to develop and form strong tissue so that it can adapt to the new environment. The aim of this research was to determine the interaction of a combination of planting media and fungicide soaking on the growth of moon orchids (Phalaenopsis sp.) at the acclimatization stage. The method used was a factorial Completely Randomized Design (CRD) and was repeated three times. The first factor is a combination of planting media consisting of 100% white moss, 50% white moss + 50% fern, 50% white moss + 50% wood charcoal, and 50% white moss + 25% fern + 25% wood charcoal. The second factor is the length of soaking in fungicide, namely without soaking, soaking 6 minutes and 10 minutes. The data obtained were analyzed using ANOVA and continued with the 5% DMRT test. The results of the research showed that the combination of planting media treatment of 50% white moss + 25% fern + 25% wood charcoal not significant on all observed parameters. These results show that the planting medium has a very important role in the growth of orchid plants, sterilization of explants at the acclimatization stage only needs to be done if the source of contaminants is in the planting material
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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