1,720,957 research outputs found
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
De 27e EURL-Salmonella workshop 23 en 24 mei 2022, Online
No full textIn mei 2022 organiseerde het Europese Referentie Laboratorium (EURL) voor Salmonella voor het 27e jaar de workshop voor de Europese Nationale Referentie Laboratoria (NRL’s). Het doel van de workshop is om informatie uit te wisselen tussen het EURL en de NRL’s. Door de uitbraak van het coronavirus is de workshop voor de derde keer online gehouden. In elke workshop is er veel aandacht voor de ringonderzoeken die het EURL organiseert om de kwaliteit van de NRL’s te controleren. Dit keer zijn onder andere de resultaten van twee ringonderzoeken gepresenteerd die in het najaar van 2021 zijn gehouden. In het eerste ringonderzoek van 2021 zijn overschoentjes met kippenmest onderzocht. In het tweede ringonderzoek zijn verschillende Salmonella-stammen getypeerd met gewone technieken en met DNA (deoxyribonucleic acid)-technieken. Voor de DNA-technieken is vooral Whole Genome Sequencing ( WGS (whole genome sequencing)) gebruikt. Hiermee kunnen micro-organismen heel precies worden getypeerd. De NRL’s scoorden goed in beide ringonderzoeken. Ook is een samenvatting gegeven van de organisatie van 25 jaar ringonderzoeken. Een andere presentatie gaf informatie over het aantal besmettingen van mensen, dieren en levensmiddelen met een Salmonella-bacterie in de Europese Unie. Ook was er een presentatie over het Europese systeem dat wordt gebouwd om de WGS-data van deze bacterie op te slaan. Deze data kunnen goed gebruikt worden voor onderzoek naar de bron van een Salmonella besmetting. Ook gaf een presentatie informatie over het vaccineren van kippen om besmetting met Salmonella bij deze dieren tegen te gaan. Ten slotte toonden de NRL’s-Salmonella van België, Noorwegen en Zweden hoe zij hun wettelijke taken invullen. Het EURL voor Salmonella is onderdeel van het RIVM en organiseert deze workshop elk jaar. Een belangrijke taak van het EURL-Salmonella is de kwaliteit van de nationale referentielaboratoria voor deze bacterie in Europa controleren.In May 2022, the EU Reference Laboratory (EURL) for Salmonella held the workshop for the European National Reference Laboratories (NRLs) for the 27th year. The aim of the workshop is to exchange information between the EURL and the NRLs. The workshop was held online for the third time due to the coronavirus pandemic. Each workshop devotes ample attention to the ring trials that the EURL organises to monitor the quality of the NRLs. This edition of the workshop included two ring trials conducted in autumn 2021 being presented. The first ring trial from 2021 studied chicken faeces adhering to boot socks. The second ring trial entailed various strains of Salmonella being typed using ordinary techniques and DNA techniques. For the most part, the DNA techniques pertained to Whole Genome Sequencing (WGS). This enables extremely precise typing of micro-organisms. The NRLs scored well in both ring trials. In addition, a summary of 25 years of ring trials was provided. Another presentation gave information on Salmonella bacteria infection rates among humans and animals and contamination of foods in the European Union. There was also a presentation on the European system that is being constructed for the purposes of storing the WGS data on this bacterium. This data will provide a solid basis for research into the source of Salmonella infection. One presentation also provided information on vaccinating chickens to combat Salmonella infection in these animals. Lastly, the Salmonella NRLs from Belgium, Norway and Sweden illustrated how they are fulfilling their statutory duties. The EURL for Salmonella forms part of the National Institute for Public Health and the Environment (RIVM) and organises this workshop every year. One important aspect of the Salmonella EURL’s remit is monitoring the quality of the European national reference laboratories for this bacterium
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
De 28e EURL-Salmonella workshop. 22 en 23 mei 2023, online
No full textIn May 2023, the EU Reference Laboratory (EURL) for Salmonella organised the workshop for the European National Reference Laboratories (NRLs) for the 28th year. The aim of the workshop is to exchange information between the EURL and the NRLs. The workshop was held online for the fourth time. Among other things, the results of four ring trials were presented. The EURL had organised three of these ring trials to monitor the quality of the NRLs. The NRLs scored well for the detection of Salmonella in hygiene swabs and in flaxseed. In the ring trial for Salmonella typing, the NRLs also achieved a good performance. The aim of the fourth ring trial was to determine the quality of a method for identification of a Salmonella type. This method uses DNA techniques and will be published as an International Standard method (ISO). The ring trial results are summarised in an annex to this new ISO and will give information on the application and quality of the ISO method. Another presentation provided information on the developments in the area of international and European standardisation of microbiological methods. Several standard methods lack quality information, which is also the case for the ISO culture method for detection of Salmonella in food products and other product types. An ISO working group will investigate how to assess this quality information. The NRL-Salmonella from Germany presented a study on the application of Whole Genome Sequencing (WGS). WGS is a DNA technique that enables very precise typing of micro-organisms. The NRL showed that this relatively new technique met the quality standards of the laboratory. Every year, some NRLs-Salmonella give a presentation on how they fulfil their statutory duties. This year, these were the NRLs-Salmonella from Bosnia and Herzegovina, Germany, Lithuania and Luxembourg. The EURL-Salmonella forms part of the National Institute for Public Health and the Environment (RIVM) and organises this workshop every year. One important task of the EURL-Salmonella is to monitor the performance of the European NRLs for this bacterium.In mei 2023 organiseerde het Europese Referentie Laboratorium (EURL) voor Salmonella voor het 28e jaar de workshop voor de Europese Nationale Referentie Laboratoria (NRL’s). Het doel is om informatie uit te wisselen tussen het EURL en de NRL’s. De workshop is voor de vierde keer online gehouden. Onder andere zijn de resultaten van vier ringonderzoeken gepresenteerd. Het EURL organiseerde drie van deze ringonderzoeken om de kwaliteit van de NRL’s te controleren. De NRL’s waren goed in staat om Salmonella te vinden in hygiënesponsjes en in lijnzaad. Ook in het ringonderzoek voor typering van Salmonella haalden de NRL’s goede resultaten. Het vierde ringonderzoek had als doel om de kwaliteit te bepalen van een methode om een type Salmonella aan te tonen. Deze methode gebruikt DNA(deoxyribonucleic acid)-technieken en zal gepubliceerd worden als een Internationale Standaard methode (ISO(International Organization of Standardization)). Een samenvatting van de ringonderzoekresultaten is als bijlage in deze nieuwe ISO opgenomen. Hierin staat informatie over het gebruik en de kwaliteit van de ISOmethode. Ook is informatie gepresenteerd over andere ontwikkelingen op het gebied van Internationale en Europese standaardisatie van microbiologische methoden. In veel van deze methoden ontbreken kwaliteitsgegevens. Dit is ook zo bij de ISO kweekmethode om Salmonella in onder andere levensmiddelen aan te tonen. Een ISO werkgroep zoekt uit hoe deze kwaliteitsgegevens kunnen worden bepaald. Het NRL-Salmonella uit Duitsland presenteerde een studie voor het gebruik van Whole Genome Sequencing (WGS(whole genome sequencing)). Dit is een DNA-techniek waarmee micro-organismen heel precies kunnen worden getypeerd. Het NRL liet zien dat deze relatief nieuwe techniek voldeed aan de kwaliteitsnormen van het laboratorium. Elk jaar presenteren een aantal NRL’s-Salmonella hoe zij hun wettelijke taken invullen. Dit jaar waren dat de NRL’s van Bosnië en Herzegovina, Duitsland, Litouwen en Luxemburg. Het EURL voor Salmonella is onderdeel van het RIVM en organiseert deze workshop elk jaar. Een belangrijke taak van het EURL-Salmonella is de kwaliteit controleren van de nationale referentielaboratoria voor deze bacterie in Europa
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
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