1,721,001 research outputs found
Convection‐permitting dynamical downscaling of ERA5 for Europe and the Mediterranean basin
No full text
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
Exploitation of Multiple Model Layers within LEXIS Weather and Climate Pilot
Full text linkThe LEXIS (Large-scale EXecution for Industry & Society) Weather and Climate Pilot is developing a system for the prediction of water-related phenomena and their associated socioeconomic impacts. The system is based on multiple models chained together, as global weather models, high-resolution regional weather models, domain-specific application models (hydrological and forest fire risk forecasts), and impact models providing information (such as air quality and rainfall intensity) for key decisions and policymakers. This chapter describes the key aspect of this pilot in terms of serving model output data and products with cloud and high-performance data analytics environments, on top of a Weather Climate Data API, as well as the porting of models on the LEXIS infrastructure via different virtualization strategies (as virtual machine and dockers)
Analyse von Typ I - Supernovaspektren mithilfe von Strahlungstransport-Modellrechnungen
No full textWe analyse spectra of observed Type I supernovae (SNe I) in order to clarify the explosion properties and obtain information about the progenitor stars. To this end, we use and extend a program which computes synthetic spectra. The code simulates radiative transfer in a supernova model with abundances and densities as physical parameters. In order to understand observed objects, we infer abundance stratifications and density profiles so as to fit the observed spectra with our synthetic ones. Using this method, we show for two peculiar SNe Ia that they are incompatible with the standard scenario of a 1.4 solar-mass white-dwarf star. We propose alternative scenarios. Afterwards, we analyse Type Ib/Ic (and Type IIb) SNe to obtain information on the progenitor stars. We conclude that SNe Ic with small to intermediate mass must have extremely helium-poor progenitors in binary systems.Wir studieren Typ I Supernovae (SNe I), um Schlüsse auf Explosionsmechanismen und Vorläufersterne zu ziehen. Hierzu benutzen und erweitern wir Strahlungstransport-Simulationen zur Erzeugung synthetischer Spektren, basierend auf einem SN-Modell in dem Dichten und chemische Schichtung einstellbar sind. Um beobachtete Objekte zu verstehen, bestimmen wir eine Schichtung derart, dass observierte und synthetische Spektren übereinstimmen. Mit dieser Methode zeigen wir für zwei ungewöhnliche SNe Ia, dass diese mit dem Standardszenario eines weißen Zwergsterns mit 1,4 Sonnenmassen inkompatibel sind, und schlagen andere Szenarien vor. Später analysieren wir SNe Ib/Ic (und IIb) mit dem Ergebnis, dass leichte Typ Ic SNe extrem heliumarme Vorläufersterne in Binarsystemen haben
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
- …
