1,720,978 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
Could atmospheric temperature impact on adequate colon cleansing for colonoscopy? An observational, single-institution study
No full textPurpose: Several risk factors affecting the adequacy of colon cleansing have been proposed during the last decades. However, less is known about the impact that atmospheric aspects could have on adequacy of the bowel cleansing. The study aimed to investigate if the atmospheric temperature could impact on the bowel cleansing during colonoscopy. Methods: A prospective maintained database of the colonoscopies performed since 1st August 2017 to 31st March 2020 was retrospective reviewed. The primary outcome of the study was to identify if the atmospheric temperature was associated with inadequate colon cleansing during colonoscopy. Secondary outcome was to identify the other factors associated with an inadequate colon cleansing. Results: One thousand two hundred twenty patients were enrolled. High atmospheric temperature (> 25 °C) significantly influenced the colon cleansing (p 25 °C) associated with lower rate of adequate bowel cleansing. However, being this relationship never studied before, these results must be confirmed by other studies
Laparoscopic atypical resection of subcardial gastric GIST guided by intraoperative endoscopy. A single-center study and a review of the literature
No full textBackground: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. They are 1% of all gastrointestinal cancer and 60% of them affects the stomach. Up to 10% to 30% of GISTs are malignant. They occur in people over the age of 50 in both sexes. The most common symptoms of gastric GIST are bleeding, dyspepsia, vague abdominal pain or discomfort, and mass palpation. Some are asymptomatic and diagnosed incidentally. The first choice of treatment for primary localized gastric GISTs is surgery. The most suitable type of resection is not yet clear and it depends on size and location of tumor, especially for difficult localizations, such as subcardial, posterior wall and less curvature GISTs. Methods: We report a rare case of a patient with subcardial gastric GIST treated with laparoscopic atypical quadrangular resection guided by intraoperative endoscopy. Furthermore, we performed a review of the literature about this topic. Results: Despite the difficult localization an atypical resection of the gastric GIST was performed without breaking the lesion but preserving the lumen of the esofagogastrich junction. Conclusions: An atypical quadrangular resection for subcardial gastric GISTs, located along the posterior wall and lesser curvature, can be a safe and reliable alternative technique. However, we believe that it should be performed by an experienced surgeon and endoscopist to decrease the risk of mass's break and the narrowing of the cardial region's lumen. In our literature's knowledge there aren't cases treated with this technique. Key words: Gastric GIST, Gastrointestinal stromal tumors, Intraoperative endoscopy, Laparoscopic resection, Minimally invasive surgery
Evaluation of the association between medical therapy and autogenic training in patients with irritable bowel syndrome
No full textBACKGROUND: The aim of the study was to evaluate the efficacy of autogenic training in combination with medical therapy in patients with IBS and in particular on anxiety, depression, insomnia and associated quality of life. METHODS: Sixty patients with IBS were enrolled in the study and divided into two groups of 30 (group A and group B), underwent a battery of tests (IBS-QOL, Zung Anxiety Self-Assessment Scale, BDI, ISI) at 0 times and at the end of treatment at 8 weeks. Group A was treated with conventional medical therapy, group B in combination with medical therapy performed TA sessions (T1). RESULTS: The results obtained from the administration of the tests at time 0 in both groups demonstrated, in all patients, a close correlation between IBS and anxiety, depression, poor quality of sleep and perceived life. CONCLUSIONS: The collection of post-treatment data, after 8 weeks, showed in group B how the autogenic training technique is a valid tool against IBS-related symptoms and disorders. In particular, there was a marked improvement in quality of life and lower levels of post-treatment anxiety and depressio
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
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