1,720,954 research outputs found
Sustainable lighting for cultural heritage: a pilot study for evaluating the exhibits’ display inside historical buildings
No full textLighting cultural heritage is a complex task that requires considering the conservation needs of the exhibits and visitors’ visual comfort. However, these needs are often in contrast. In addition, whenever the exhibitions are displayed inside historical buildings, the task further complicates, as lighting designers must face and respect the architectural character of the host building. They have two mean of work: static and dynamic analysis. The former uses the Daylight Factor (DF) while the latter requires a prolonged and expensive measurement campaign. Both analyses present advantages and shortcomings: the DF approach is easy and fast, but it implies many oversimplifications whereas the annual approach provides accurate results but is time and money-consuming. In this paper the authors analyse a case study with both methods. The case study is the Cetacea’s Gallery of the Charterhouse of Calci (PI). The findings of this research demonstrate that the annual approach is preferable, despite its costs, and that the static approach should be used just for first instances analyses. The research pointed out the necessity of a standardized procedure of evaluation that would allow lighting designers to confront possible interventions and find the most adequate to solve the conservation and comfort issues of the case in exam
Lighting and visual experience of artworks: Results of a study campaign at the National Museum of San Matteo in Pisa, Italy
No full textLight is one of the main factors affecting the visual experience of artworks in museums and can determine the success or failure of an art exhibition. The lighting design is not yet extensively recognized as a crucial element of museum exhibitions, but recent research studies show how different lighting arrangements can create different impressions of the artworks and affect the visual experience of museum visitors. This project involved a psychophysical study of two ancient artworks, a painted panel (14th Century) and a marble sculpture (15th Century), exhibited at the National Museum of San Matteo in Pisa, Italy. Each experiment was set up with different lighting arrangements and different luminaires, with the aim of creating different lighting contrast ratios between the analysed artwork and its background. Those lighting arrangements were presented to different groups of observers in order to investigate the trends of personal preference. The results of the surveys pointed out that, on average, the observers preferred lighting arrangements that provide a certain level of contrast, while configurations with high contrast or almost no contrast were evaluated as less pleasant, less interesting and less suitable to enhance the artworks
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
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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