1,720,957 research outputs found
An evaluation of 605 endoscopic examination in a rural setting, Lacor Hospital in Northern Uganda
Full text linkIntroduction: The aim of this study was to evaluate the profile of esophagogastroduodenal
(EGDS) diseases diagnosed by upper endoscopy in a rural area of Uganda in a retro-protective
study of 605 patients.
Results: The mean age of patients with digestive symptoms was 39.7yrs (SD +/-16.11) and female
gender predominated by 60% compared to the male (P value 0.000). Peasant farmers were the
commonest group with GI symptoms requiring EGDS compared to the rest 72.1% v 27.9%.
Epigastric pain was the commonest indication (58%) for EGDS, followed by chest pain (11%),
abdominal pain (8.8%), dyspahgia (7.6%) and hematemesis (7.3%). The commonest endoscopy
finding was gastritis (47.9%) followed by esophagitis (14.4%), cancer esophagus (5.1%),
esophageal varicose (4%), PUD (2.3%), gastric cancer (1%). However 19.5% of patients had
normal EGDS. There was a significant correlation between the outpatient diagnosis and
endoscopy finding (P value 0.01, r = 0.144) and between endoscopy finding and histology findings
(P value 0.001, r = 0.236). H. pylori was positive in 53% of patients with gastritis.
Conclusion: Gastritis is the commonest lesion (47.9%) of which 53% have H pylori and Cance
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
High velocity missile injuries of the liver
Full text linkA prospective study of 15 consecutive patients admitted with high velocity missile liver injuries of the liver was done at Lacor hospital between November 1996 and May 1997. Operative findings, treatment offered and factors influencing morbidity and mortality were noted. All patients were followed up for two months postoperatively. Fourteen patients sustained gun shot wounds while one was injured by a bomb blast fragment. Ages ranged from 2 to 33 years (mean 24.4 years). Two patients sustained liver injury alone while the rest had other associated visceral injuries as well. Grade I, II and III liver injuries were seen in 7, 5 and 2 patients respectively. One patient had a bullet perforation of the liver and could not be classified on this scale. Six patients received blood transfusion. Four patients (270) developed complications. One had a sub-hepatic abscess while the other three had wound infections. 'ItYo patients died, one of exsanguination and the other of septic shock. High velocity missile injuries of the liver are associated with high transfusion needs and morbidity both of which can be minirnised by a policy of conservative surgery.Key words: high velocity missile, injuries, liver
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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