1,720,955 research outputs found
Mannheim Peritonitis Index: usefulness in a context with limited resources: Prognosis of acute peritonitis.
Get PDFBackground:
The objective of this study is to evaluate the Mannheim Peritonitis Index (MPI) usefulness for acute generalized peritonitis management in a clinical limited resources context.
Methods:
This is a prospective study from 1 January to 31 October 2019 including patients admitted to a sub-saharan hospital for acute generalized peritonitis. Perioperative variables and outcomes were considered.
Results:
70 patients were included. Mean age was 32.6 ± 14.6 years with a sex ratio of 1.33. The mean time to patients’ hospital admission was 3.9 ± 2.1 days. Most patients had ileal and gastric perforations (27.1% and 18.6%). Twenty six patients (37.1%) developed complications and thirty-day mortality rate was 14.3%. Positive predictive value of MPI was 63.6% and negative predictive value was 83, 8%. Sensitivity of MPI ≥ 26 was 77.8%; Specificity of MPI < 25 was 72.1%.
Conclusion
This experience shows that MPI is a good predictor of morbidity and mortality for patients with acute peritonitis even in a difficult context with few resources and many patients. Identifying the most critical patients, a more careful surgical staff involvement may improve patients outcome
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
Usefulness of a clinico-biological Francois’ score in the diagnosis of acute appendicitis. Experience of the University Hospital Center of Parakou, Benin
No full textIntroduction: Diagnostic wanderings of acute appendicitis are responsible for serious complications or abusive appendectomies. Existing Clinico-biological scores are efficient. Objective: To determine the diagnostic efficiency of François’ score in acute appendicitis. Methodology: over 10 months, all the patients admitted in the CHUD-Parakou Emergency Department for pain in the right iliac fossa had been examined by resident students who calculated François’ score. After verification by the surgeon, patients were put into three categories: category 1 score ≥ 2; category 2, score between -6 and 2; category 3, score below -6. Sensitivity and specificity were calculated. Results: out of 54 patients selected (29 men and 25 women), 29 were classified as group 1; 19 as group 2 and 6 as group 3. An ultrasound was performed in all patients in group 2, and signs in favor of appendicitis were found in 12 patients. Of the 41 appendicectomies performed, the histologic analysis of 33 operative specimens found a pathological appendix. Sensitivity, specificity and negative predictive value per group were 100%. It has prevented almost in one every four patients (24.07%) an abusive appendectomy. Conclusion: This score would reduce diagnostic wanderings and target patient groups for imaging studies
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
