1,720,954 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
Dental Arch Dimension of Mixed Dentition of Kurdish Orthodontic Patients with Class I and Class II Division 1 Malocclusion (In-Vitro Comparative Study)
Full text linkObjective: To assess dental arch dimensions (width, depth) in mixed dentition in a sample of Kurdish orthodontic patients.Methods: A sample of 58 dental casts (28 class I, 30 class II division 1 malocclusions) from 8 years and two months to 10 years andnine months were collected. Measurement of arch dimensions was taken, including width and depth. Differences between males andfemales and between class I and class II division 2 malocclusion were tested using independent t-test.Results: With gender pooled, class I group has larger UC, UE, U6, LE, L6 width than class II group, whereas class II group has largerLC width than class I group with no significant difference. The class II group has larger arch depth for maxillary measurements thanthe class I group, with no significant difference. While the class I group has larger arch depth for mandibular measurements than theclass II group, with no significant difference except for LC. In gender dimorphism, class I group, all arch width measurements, femaleshave a larger width than males except L6; all differences were no significant. While in all arch depth measurements, males have largerdepth than females. In the class II group, all measurements of width and depth were larger in males than females, the difference in UEand U6 were significant.Conclusions: Class I malocclusion has larger width and depth than class II division 1 malocclusion, except in the maxillary depth ofclass II division 1 malocclusion. Males had larger arch dimensions than females
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Prevalence of Dental Anomalies in a Sample of Orthodontic Patients in Erbil City
Full text linkObjective: Dental anomalies are abnormal morphological development of dentition during various periods of tooth development andhave an important role in the development of various kinds of malocclusions. If dental anomalies not diagnosed, they can make dentaland orthodontic treatment more difficult. So, orthodontists and the general dental practitioner must investigate patients carefully. Theobjective of the current study was to determine the prevalence and distribution of dental anomalies in a sample of orthodontic patientsin Erbil city using orthopantomogram.Methods: Four hundred fifty-eight orthopantomograms of orthodontic patients with age of 16-40 years evaluated to determine theprevalence and distribution of the hypodontia, impaction, microdontia, and supernumerary tooth.Results: 15.06% orthodontic patients: 21 males and 48 females had at least one dental anomaly. Impaction and hypodontia were themost common dental anomalies with no significant difference between genders. Maxillary canines were more commonly impactedtooth, whereas maxillary lateral incisors were the most common tooth agenesis among genders.Conclusions: Impaction was the most prevalent dental anomaly, and maxillary canines were the most involved teeth and are inagreement with many studies among various populations. The most frequently missing teeth were the maxillary lateral incisors.However, mandibular 2nd premolar was the most common hypodontia in some studies
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