1,720,977 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
A multidisciplinary study of sandy beaches along the Apulian coast (Southern Italy).
No full textThe Apulian coasts are leader in the seaside tourism sector, by offering a great variability of coastal landscapes with a widely acclaimed concentration of tourism on sandy beaches. The Apulia Region contains about 900 km of coastal sectors, which corresponds to 12% of the Italian littorals. During the last fifty years, a significant economic development of many maritime localities is seriously threaten by pervasive coastline retreats, which are one of the most current issues of the region.
This study focuses on the processes influencing the mechanisms of erosion, transport and sedimentation in coastal areas characterized by sandy beaches in order to analyse the sedimentary dynamic with a multidisciplinary approach.
To achieve this objective, two beaches have been chosen as representative examples of Ionian (Porto Cesareo, Lecce) and Adriatic (Torre Guaceto, Brindisi) sandy coastal sectors of the Apulia region. Both areas are part of Protected Marine Reserves with stunning emerged and submerged landscapes. In terms of sand compositional features, these beaches represent also end-members of the Apulian beaches: Porto Cesareo sands are mainly bioclastic, while Torre Guaceto sands have a predominant siliciclastic (lithoclastic) content.
The application of a multidisciplinary approach consists of gathering and testing different techniques. Firstly, the use of the Terrestrial Laser Scanner (LST) will allow analysing the emerged beach environment in superficial and geomorphological terms by constructing three-dimensional terrain models and evaluating beach slopes. The thickness of the emerged beach will be quantified with georadar investigations, whereas a Multibeam procedure will determine different relief forms and the bathymetry of the sea floor. Lastly, the Sub Bottom Profiler technique will be applied to measure the thickness and the sediment volumes that are involved in the coastal dynamic.
By a sedimentological point of view, the beaches have been monitored by measuring all possible physical data, using classical and modern techniques. Seasonal sedimentological sampling procedures were carried out through diving techniques from foreshore to lower shoreface environments (local wave base is about 6 m). The grain-size analysis allowed us to calculate the statistical parameters of sands with unimodal distribution. The variation of these parameters along the emerged and submerged subenvironments have been analysed across the entire beach profile. In addition, the relationship between the main statistical parameters (mean versus kurtosis, kurtosis versus sorting, kurtosis versus skewness and mean versus skewness) will be used to investigate the erosive or stable-prograding tendency of the beaches.
The most frequent size class of the statistical distribution was investigated with a binocular optical microscope to evaluate the sands composition in quantitative terms. Therefore, the classification of sands included quarts, feldspar, carbonate grains and other components (pyroxene, amphibole and opaque minerals). Within the carbonates class, the percentage of bioclasts was also evaluated.
In the end, the sedimentological study of current beach sands with those relicts of platform will allow their reliable use in sandy coast nourishments for future technical interventions
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
Analisi e monitoraggio della dinamica morfo-sedimentaria della spiaggia Le Dune – Porto Cesareo (LE).
No full textIl presente studio riguarda i meccanismi di erosione, trasporto e sedimentazione nei settori costieri della Puglia. Lo scopo della ricerca è testare delle procedure di analisi, monitoraggio e salvaguardia di un tratto di litorale sabbioso, investigando i processi di modificazione morfo-sedimentaria della spiaggia, analizzando i caratteri tessiturali e composizionali delle sabbie e quantificando i volumi coinvolti nella dinamica costiera. L’applicazione di un approccio multidisciplinare permetterà, in un triennio, di analizzare e monitorare la spiaggia Le Dune, una pocket beach situata tra l’Isola della Malva e la cittadina di Porto Cesareo (LE). Il campionamento sedimentologico e le indagini ecologiche permetteranno di interpretare le interazioni fisico / biologiche della spiaggia. Indagini LST e georadar saranno adottate per lo studio del settore emerso. L’attuazione di profili batimetrici e del Sub Bottom Profiler consentiranno l’investigazione della spiaggia sommersa
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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