1,720,958 research outputs found
Repair of Oseophageal atrisia by consultants and supervised trainees results in similar outcomes
No full textAims: consultants and trainees require exposure to complex cases for maintainingand gaining operative experience. Oesophageal atresia (OA) repair is a neonatalsurgical case with indicative numbers for completion of training. A conflict of interestmay exist between adequate training, maintaining consultant experience andachieving good outcomes. We aimed to review outcomes of cases performedprimarily by trainees compared to those by a consultant. Methods: retrospective casenote review of all consecutive infants who underwentsurgical repair of OA with distal Tracheo-Oesophageal Fistula (TOF) between Jan1994 and Dec 2014. Only cases that underwent primary oesophageal anastomosiswere included. Surgical Outcomes were compared between cases that had trainee orconsultant listed as primary operator. Results:one hundred and twenty-two cases were included. Fifty-two cases were operated by a trainee, 68 by a consultant (2 cases undeterminable and excluded). Infant demographics, clinical characteristics and duration of f ollow-up were similarbetween groups. All infants survived to discharge. C ases operated by a trainee andconsultant as primary operator had a similar incidence of postoperative pneumothorax (trainee 4 vs consultant 3; p=0.46), anastomotic leak (5vs 3; p=0.29) and recurrentTOF (0vs 2; p=0.5). Overall 52% of cases had an anastomotic dilatation during follow-up with no difference between trainee and consultant groups (50%vs 53%;p=0.85). Conclusion: surgical outcomes for repair of OA/TOF are not adversely affected by trainee operating. Trainees with a ppropriate skills should perform supervised OA/TOF repair. These data are important for understanding the inter-relationship between provision of training and surgical outcome
"Stretching the limits of laparoscopic surgery": two-stage laparoscopic liver resection
No full textIntroduction: the safety and feasibility of laparoscopic liver resections have recently been confirmed. This has encouraged laparoscopic surgeons to widen the indications and push the boundaries in laparoscopic liver resections. However, a complete laparoscopic two-stage liver resection has not been reported previously.Aim: the aim of this work was to assess the feasibility and safety of the two-stage laparoscopic liver resection for metastatic disease.Methods: the two-stage laparoscopic liver resection was safely performed in a 58-year-old man with colorectal liver metastasis (one in segment 2/3 and one in the right lobe). A left lateral sectionectomy was first performed, followed by right portal vein embolization 1 week later, and a nonanatomic resection of the right liver was performed after 6 weeks.Conclusions: laparoscopic liver surgery is gaining popularity and major procedures can now be performed in centers with wide experience. The laparoscopic approach should always be considered for left lateral sectionectomy, and in selected cases, a complete laparoscopic two-stage resection can safely be performe
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
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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