1,722,518 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
Measuring vessel dimensions in oak wood (Quercus sp.) on macroscopic level with image analysis system - Lucia G
Full text linkSistem za analizo slike Lucia G smo uporabili za avtomatsko merjenje dimenzij trahej na makroskopskih vzorcih hrastovine (Quercus sp.). Predstavljen je problem priprave površine lesa ter zajem in urejanje slike za avtomatsko merjenje premerov, površin in obsegov trahej ranega lesa. Med različnimi načini priprave vzorcev smo najboljše rezultate dobili, ko smo jih zbrusili z brusnim papirjem granulacije 320 in površino obarvali s črnim alkoholnim flomastrom. V traheje smo nato vtrli prah bele krede in sliko posneli z digitalnim fotoaparatom nameščenim na stereo-mikroskop ter jo shranili v formatu TIF. Sliko smo obdelali z digitalnimi filtri, jo binarizirali in določili referenčni okvir za merjenje. Rezultati kažejo, da je s programom za analizo slike Lucia G mogoče pri venčastoporoznih vrstah na makroskopskem nivoju z zadovoljivo natančnostjo meriti dimenzije trahej ranega lesa.System for image analysis Lucia G was used for measuring vessel dimensions of oak wood (Quercus sp.) on macroscopic level. We present the problem of sample preparation as well as capturing and processing of images for automatic measurements of diameters, areas and perimeters of early wood vessels. After testing various methods of sample preparation we found out that the best results were obtained when the samples were sanded with paper of granulation 320 and the surface stained with black alcohol marker. Vessel lumina were then filled with white chalk dust, and finally the images were captured by a digital camera attached to a stereo microscope and saved in TIF format. We improved the images by using digital filters, converted them to binary images and defined measurement frames. The results confirmed that the image analysis system Lucia G enables measurements of early wood vessel dimensions in ring porous species on macroscopic samples with satisfying accuracy
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
Measuring vessel dimensions in oak wood (Quercus sp.) on macroscopic level with image analysis system - Lucia G
No full textSystem for image analysis Lucia G was used for measuring vessel dimensions of oak wood (Quercus sp.) on macroscopic level. We present the problem of sample preparation as well as capturing and processing of images for automatic measurements of diameters, areas and perimeters of early wood vessels. After testing various methods of sample preparation we found out that the best results were obtained when the samples were sanded with paper of granulation 320 and the surface stained with black alcohol marker. Vessel lumina were then filled with white chalk dust, and finally the images were captured by a digital camera attached to a stereo microscope and saved in TIF format. We improved the images by using digital filters, converted them to binary images and defined measurement frames. The results confirmed that the image analysis system Lucia G enables measurements of early wood vessel dimensions in ring porous species on macroscopic samples with satisfying accuracy
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
The Rousseau Decision-Making Platform and the e-democracy model in Italy's Five Star Movement
No full textQuesto articolo intende offrire un'analisi dell'infrastruttura tecnologica di Rousseau, la piattaforma decisionale d "Movimento a cinque stelle" (M5S).
Con oltre 145.000 utenti registrati, Rousseau è probabilmente l'esperimento più esteso di "web-democracy" all'interno di un partito politico nel mondo occidentale. Lanciato ad aprile 2016, Rousseau è diviso in nove aree. L'area più ambiziosa e innovativa della piattaforma è "Lex Iscritti", che consente ai membri di redigere i loro progetti di legge e metterli in votazione per presentarli sotto forma di un progetto di legge in Parlamento dai loro stessi parlamentari .
Sebbene i leader del Movimento a cinque stelle si riferiscano regolarmente a Rousseau come piattaforma per la democrazia diretta, Rousseau si presenta come uno strumento strettamente collegato alla tradizionale forma di democrazia rappresentativa, dando origine a ciò che viene definito un "parlamentarismo diretto". Questa definizione è legata al concetto di "Direkter Parlamentarismus" elaborato dai creatori del software "Adhocracy" che, a partire dalla crisi che attraversa gli attuali sistemi democratico-rappresentativi, prevede l'introduzione di meccanismi rinnovati di democrazia diretta ora accessibili e disponibile dalle ICTs
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