1,720,955 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
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
Outcome of Traumatic Posterior Fossa Epidural Hematomas
Get PDFObjective: To present our experience in the management and outcome of posterior fossa epidural hematoma (PFEDH).Materials and Methods: It was a descriptive study, conducted in Head injury unit Hayatabad Medical Complex, Peshawar, from December 2009 to October 2012. All patients having traumatic posterior fossa extradural hematoma confirmed on CT Brain were included in this study. The information regarding patient demographical details, clinical presentation, operative finding and post operative follow-up findings were entered into a semi structure Performa. The data was analyzed by SPSS version 17.Results: Out of 41 patients, there were 32 (75.6%) males and 9 (21.9%) females. The age of patients ranged from 5 to 60 years. In this study the mean age was 20.4 years. Majority of patients 17 (41.4%) were in the age range of 21 – 30 years. Pre-operative GCS score were recorded in which most of the patients 21 (51.2%) were in the GCS score 13 – 15. Clinically 33 patients presented with vomiting, 25 with altered level of consciousness, and 29 with headache. Post-operative GCS score were recorded in which 31(75.6%) patients were in the GCS score 13 – 15, 9 (21.9%) patients were in the GCS score 9 – 12 and 1 (2.43%) patient was in the GCS score 3 – 8. Conclusion: CT scan brain should be immediately done if there is even little doubt of posterior fossa extra-dural haematoma (PFEDH). Posterior fossa creniectomy has got good results. Mortality and morbidity can be decreased in PFEDHs if they are diagnosed earlier and promptly treated
Frequency of Extra-dural Hematoma in Patients with Head Injury
Get PDFObjectives: To determine the frequency of extra-dural hematoma in patients with head injury.Patients and Methods: This cross sectional descriptive study was done in neurosurgery department of Hayat-abad Medical Complex, Peshawar, from 2nd February 2012 to 1st September 2012. All patients of head injury, from all ages and both genders were included. Patients in whom EDH caused by bleeding disorders or vascular malformations of the dura mater and post surgical EDHs were excluded from the study. CT scan brain was done for all patients to confirm their diagnosis. The information regarding patient demographical details, clinical presentation and site and size of hematoma was documented in patient’s Performa. The data was analyzed by SPSS version 17.Results: A total of 281 patients with head injuries were included in the study. Out of 281 patients, there were 191 (67.9%) males and 90 (32.02%) females. The mean age was 27 years. Majority of patients 81 (28.8%) were in the age range of 21 – 30 years. EDH was found in 31 (11.03%) patients. Eleven patients (3.91%) had their hemato-mas in temporal region. Temporo-parietal region was involved in 9 (3.2%) patients. Frontal and parietal region was affected in 5 patients (1.78%) each. One patient had extra-dural hematoma in posterior cranial fossa.Conclusion: Extra-dural haematoma is fond in 11% of head injury cases. It is more contain in males as com-pared to females. It is most common in 20 – 40 years of age, temporal and parallel cases are most frequently in-volved regions. The mortality in head injury patients can be reduced if extra-dural hematoma diagnosis and operation done early
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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