1,720,957 research outputs found
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
Coastal flooding risk scenario for the city of Grado, northern Adriatic Sea
No full textSea level rise, along with fast urbanization, has significantly raised flood hazards in coastal areas due to both increased population and the frequent urgent situations encountered in the urban context (Neumann, 2015). Rigid defensive systems along shorelines, backshore, and perimeter embankments at the lagoon border must therefore undergo structural verification and accurate elevation control, adapted to the expected sea level rise over which extreme events emerge. In this regard, a thorough investigation was conducted on the city of Grado, located in the North Adriatic Sea and representing one of the most important coastline and heritage sites in Friuli Venezia Giulia. The city is located on a barrier island and is prone to flooding from both the sea and from the back lagoon. The examination of the historical dataset of mean sea level and maximum levels recorded between 1991 and 2022 allowed us to first obtain local elevation estimates while also including subsidence. The study then looked at the duration of annual exceedance of the minimal threshold level of 110 cm, which marks Grado’s first significant marine ingression. Annual extremes were then processed using the Gumbel-type distribution law (Gumbel, 1958; Coles, 2001), which modulated the level thresholds with their respective return times for the location. Finally, the reconnaissance includes a downscaling examination of the impacts on the urban fabric, which is divided into regions of different vulnerability. Inundated areas were compared from high resolution DEMs using a GIS-based technique and a modeling approach utilizing MIKE software, analyzing both the magnitude and exposure of the urban setting to flood risk estimated for 2050 and 2100. As of today, approximately 56% of Grado’s inhabited area is inundated with a sea level threshold value of 151 cm, which occurs during surge episodes with a 30-year return period. By 2100, with an optimistic forecast (SSP1-2.6) of local sea level rise of around +50 cm, the same threshold will be met with events with a 30 times shorter return time. As a result, by 2100, 56% of the land area will be submerged at least once a year due to 101 cm surges. Extreme levels linked with more catastrophic events with secular recurrence times will be achieved on a multiyear basis, flooding more than 70% of the urbanized area. This makes it more important than ever to develop proper adaptation measures from the outset. The simulations developed are thus essential for medium to longterm urban planning, with the goal of securing the city, which, like Venice, is indicative of the processes that may affect other coastal realities and historical cities of great national worth
Coastal Storm-Induced Sinkholes: Insights from Unmanned Aerial Vehicle Monitoring
Full text linkIn recent decades, the scientific community has increasingly focused on extreme events linked to climate change, which are leading to more intense and frequent natural disasters. The Mediterranean can be considered a hotspot where the effects of these changes are expected to be more intense compared to other regions of the planet. Italy is not exempt; in fact, with its extensive shoreline, it is particularly vulnerable, especially to high sea levels and coastal erosions. In this framework, from late October to early November 2023, six storm surges occurred in the Gulf of Trieste (NE Italy). These events, characterized by winds from 190°N to 220°N and the significant wave height, which reached up to 1.81 m nearshore—an uncommon meteorological condition in the northern Adriatic Sea—caused the occurrence of eight coastal sinkholes and substantial damages to man-made structures. Thanks to Unmanned Aerial Vehicles (UAVs) and their derived products (high-resolution orthomosaics, Digital Elevation Models—DEMs, and point clouds), it was possible to study these features over time, enabling long-term coastal dynamics monitoring, which can be crucial for timely and effective response and restoration efforts
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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