1,721,715 research outputs found
Garment allergy caused by Disperse Blue 360: A new sensitizer
Get PDFThis is the peer reviewed version of the following article: Pousa-Martínez M, González-Rodríguez C, Rodriguez-Rodriguez M, Sainz-Gaspar L,Sardina FJ, Fernández-Redondo V. Garment allergy caused by Disperse Blue 360: A new sensitizer. Contact Dermatitis. 2018;79:37–38, which has been published in final form at https://doi.org/10.1111/cod.12975.
This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsDisperse dyes are some of the most common causes of textile contact dermatitis. Current legislation does not help to identify the colorant used in a garmentS
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
A MODIFIED EN 12975 TEST FACILITY FOR THE MEASUREMENT OF THE ISTANTANEOUS EFFICIENCY OF SOLAR THERMAL COLLECTORS
No full textIn Europe for the measurement of the thermal efficiency of a solar collector, the Standard EN 12975-2 [1] is followed. However, in the literature is also recognized the opportunity to obtain faster and cheaper evaluations of this parameter. In order to give an answer to this request, a modified test equipment for the evaluation of the thermal performance of solar collectors, based on EN 12975-2 [1], is proposed. The standard procedure followed in Europe requires expensive equipments and time consuming procedures; at the same time the required operating conditions are difficult to be set up. Starting from the basic scheme for the steady-state method, a new equipment for the measurement of the instantaneous efficiency has been realized. The equipment allows a fast evaluation of the performance in real environmental conditions. The main difference is in the procedure used to fix the different test conditions. Although the accuracy of some measurements are not totally conforming to EN 12975-2 [1], the results are quite comparable and the reliability of the procedure and of the equipment is demonstrated
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
ON THE MEASUREMENT OF THE ISTANTANEOUS EFFICIENCY OF SOLAR THERMAL COLLECTORS WITH A MODIFIED EN 12975 TEST FACILITY
No full textIn Europe the thermal efficiency of the solar collectors is measured by following the Standard EN 12975-2. However, in the literature the opportunity to obtain faster and cheaper evaluations is also recognized. In order to give an answer to this request, a new test equipment is proposed. Starting from the basic scheme of the standard steady-state method, a new equipment for the measurement of the instantaneous efficiency has been realized. This equipment allows a fast evaluation of the performance in real environmental conditions. The main difference lies in the procedure used to fix the different test conditions. Although the equipment is not totally conforming to EN 12975-2, the results are quite comparable and the reliability of procedure and equipment is demonstrated
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
- …
