1,720,975 research outputs found
Review of the ASTROVIRTEL Experience at the end of its Three Approved Cycles
No full textASTROVIRTEL has concluded its three-year life cycle. A review of the last two cycles is presented. The program selection process was instrumental in ensuring that the tools and methods developed for the successful PIs were general enough to be reused by a wider community of users of the ESO/ST-ECF archive. It will be here shown how such goal was achieved. The programs of the last two cycles will be described touching upon scientific and technical requirements, technical challenges (quite typical for any astronomical archive) technical and scientific achievements. The overall exercise of hosting scientific investigators with quite spread scientific interests has been very effective in revisiting and augmenting various ESO/ST-ECF archive functionalities and scientific products. Some of the developed tools and methods are already integral part of the ESO/ST-ECF archive, while some others are still being optimised before becoming operational. ASTROVIRTEL forced the developers to look into both the HST and ESO archives, each with its own peculiarities, and come up with solutions as general as possible. Furthermore, ASTROVIRTEL has also played an important role in the Virtual Observatory phase A study, particularly in the area of data centres inter-operability and scientific requirements
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
Structural and thermal stability analysis of Escherichia coli and Alicyclobacillus acidocaldarius thioredoxin revealed a molten globule-like state in thermal denaturation pathway of the proteins: an infrared spectroscopic study.
No full textVariations 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
Conformational stability of starch phosphorylase from Corynebacterium callunae and its mutants under different buffer conditions.
No full textStructural and thermal stability analysis of Escherichia coli and Alicyclobacillus acidocaldarius thioredoxin revealed a molten globule-like state in thermal denaturation pathway of the proteins: an infrared spectroscopic study
No full textStructural and thermal stability analysis of Escherichia coli and Alicyclobacillus acidocaldarius thioredoxin revealed a molten globule-like state in thermal denaturation pathway of the proteins: an infrared spectroscopic study.
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