1,721,399 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Jerry A. Fodor : la modularité de l'esprit ou de la non-existence de la psychologie cognitive
No full textGineste Marie-Dominique. Jerry A. Fodor : la modularité de l'esprit ou de la non-existence de la psychologie cognitive. In: Bulletin de psychologie, tome 38 n°372, 1985. pp. 853-858
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Symptoms and prevalence of the temporomandibular disorders before and after orthognathic surgery
No full textAim: The aim of this study was to evaluate temporomandibular joint (TMJ) symptoms, the functional and neuromuscular changes after surgical-orthodontic treatment of orofacial deformities with temporomandibular dysfunction (TMD).
Material and Methods: The study was based on a group of 400 dysgnathic patients. Were evaluated skeletal and dental malocclusion type, TMJ symptoms, headache, cervical and neck pain, otovestibular symptoms. Electromyography and kinesiography were used to assess the muscular activity and the mandibular movements.
Results: TMJ symptoms in low and normal angle mandibular retrognatism patients have improved (p<0,01).The post-treatment results showed that almost all craniomandibular symptoms were significantly reduced postoperatively above all muscular spasms (93%) and headache (62%), (P<0.01); mandibular kinesology (84%) was improved (P<0,01). Also cervical pain, otovestibular and postural symptoms seem to benefit from treatment. Even if preoperatively asymptomatic, patients with TMJ problems after surgery (8,8%) have resulted (P<0.1). In preoperatively asymptomatic patients who developed TMJ symptoms after surgery, the highest incidence was found in high angle patients with severe mandibular retrognatism, treated by bimaxillary surgery.
Conclusion: The combined surgical-orthodontic treatment may be of a great benefit in the correction of discrepanciesin occlusion and maxillo-mandibular relationship in the severe orofacial deformities associated to temporomandibular disorders. Conversely orthognathic surgery can produce TMJ symptoms by changing the position of the mandible and the maxilla with regard to each other and therefore the position of the condyle in the glenoid fossa. Mandibular ramus, osteotomies have a direct influence on this position, whilst in maxillary osteotomies the influence is indirect because of autorotation
Condylar Morphological Changes in Juvenile Idiophatic Arthritis : Cone Beam CT
No full textAim: To examine the relationship between the clinical signs and symptoms of temporomandibular joint disorders and Cone Beam Computed Tomography (CBCT) evidence of destruction of these joints in children afflicted with Juvenile Idiopathic Arthritis (JIA). It has been evaluated from a statistical stand point the temporal, metric and clinical variables of the disease, also measuring condylar and mandibular real volumes in order to plan an effective therapy.
Materials and Methods: This study enrolled 30 patients with JIA. CBCT has been performed. 3D quantitative measures of the mid-lateral and anterior-posterior diameters and angles of the condyles were taken. The mandible was isolated from others craniofacial structures; the whole mandibular volume and its components’ volumes (condyle, ramus, emibody, emisymphysis on right side and on left side) has been calculated by a 3D volume rendering technique.
Results: The analysis of the condylar changes showed that the most apparent signs were the erosion (44%), the flattening (24.5%) and the presence of osteophytes (15%). Only 2% of the study subjects had no damage. There was a very significant difference in the linear and angular measurements between healthy and affected condyles (p<0.01). The results show a highly significant statistical difference between affected side volumetric values versus normal side volumetric values above all on condyle region (P<0.01), while they doesn’t show any statistical differences between right side versus left side.
Conclusions: CBCT represents an improvement in quantifying the morphological changes of the condyle and mandible, gives an accurate picture of these structures in JIA and allows the acquisition of true measurements of the mandibular components even in the early stages of JIA. Early initiation and optimal adjustment of aggressive therapy with disease-modifying anti-rheumatic drugs have been extremely successful in preventing irreversible joint damage
- …
