1,720,958 research outputs found
[Epilepsy in later life: seizures persisting after the age of 60].
No full textIn a group of 657 epileptic patients there were 51 presenting with fits even after having reached the age of 60. The onset of seizures dated back to the first 20 years in 15 patients between 20 and 40 years in 15 and between 40 and 60 years in 21. In 67\% of the cases it was possible to determine the cause of seizures. The aetiology was unevenly distributed within each group. In the first group (up to 20 years) the P.G.E. forms prevail. In the second (up to 40 years) post traumatic epilepsy and inflammatory processes were predominant, while in the third (up to 60 years) vascular and tumoral pathology seem to be prevalent. 43\% of the patients showed paroxysmal abnormalities in the EEG and these were still present even after to age of 60 years in more than fifty per cent. After the age of 60 we found no case of benign epilepsy amenable to complete recovery. Patients older than 60 present epilepsies of mild severity. In symptomatic epilepsies the lesional factors were not subject to evolution and the epileptogenic focuses were stable and persistent. In partial epilepsy there were more cases of complex symptomatology (86\%) than cases of elementary symptomatology (14\%) The evolution of seizures in old age is considered together with the importance of all factors influencing recurrency
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
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
The significance of cyclic EEG changes in Creutzfeldt-Jakob disease: prognostic value of their course in 9 patients.
No full textThe diagnostic value of the EEG in Creutzfeldt-Jakob disease is based not only on the presence of a typical pattern of periodic discharges but also on the appearance of cyclic changes in the EEG. The pattern of the cyclic EEG changes was analysed in 9 patients with Creutzfeldt-Jakob disease. The changes appear when the level of wakefulness is reduced. The alternating pattern rate increases as the disease progresses and accounts for as much as 100 per cent of the tracing when the patient is in coma. During the cyclic changes the cardiorespiratory rate is always higher in phase A than in phase B. Hypertonic fits and most myoclonic jerks are present only in the A-phase, whereas partial myoclonus and fasciculations are present in both phases. The cyclic change pattern in Creutzfeldt-Jakob disease reveals a progressive. The cyclic change pattern in Creutzfeldt-Jakob disease reveals a progressive, serious involvement of the waking system
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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