1,720,959 research outputs found
Oesophageal achalasia with epiphrenic diverticulum with laparoscopic approach: A 6-year follow-up
No full textLong-term results of laparoscopic treatment for oesophageal
achalasia with epiphrenic diverticulum are reported
in a 75-year-old woman presenting with a 10-year
history of dysphagia, regurgitation, cough, and a 10-kg
weight loss. Preoperative barium swallow showed a dilated
sigmoid oesophagus with a 6-cm enlarging epiphrenic
diverticulum. Endoscopic biopsies
were negative for cancer and oesophageal manometry
showed no peristalsis. Laparoscopic diverticulectomy
and a 7-cm distal oesophageal myotomy with Dor fundoplication
were performed. The postoperative course wasuneventful and the patient was discharged home 5 days
after the operation, symptom-free, and tolerated a soft
diet. Six months postoperatively she had no symptoms,
ate without restrictions, had gained 8 kg, and showed a
normal-sized oesophagus with regular emptying on barium
swallow. At the 6-year follow-up, the patient
was free of symptoms and had gained 19 kg of weight.
Specifi cally, she had no dysphagia, regurgitation, heartburn
or cough; a new barium swallow showed a normalsized
oesophagus with tertiary contractions and a 2-cm
epiphrenic diverticulum
Necessity of needle wire localization during video assisted thoracic surgery for patients with solitary pulmonary nodule
No full text
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
Randomized clinical trial of the effect of preoperative dexamethasone on nausea and vomiting after laparoscopic cholecystectomy
No full textBackground: Preoperative dexamethasone may reduce disabling symptoms such as pain, nausea and
vomiting after laparoscopic cholecystectomy.
Methods: This was a randomized, double-blind, placebo-controlled trial. Between March and December
2004, 101 patients undergoing laparoscopic cholecystectomy were randomized to receive 8 mg
dexamethasone (n = 49) or placebo (n = 52) intravenously before surgery. Six patients were excluded
from the study. All patients received a standardized anaesthetic, surgical and multimodal analgesic
treatment. The primary endpoints were: first, postoperative nausea, vomiting and pain; second,
postoperative analgesic and antiemetic requirements. The pain scores (visual analogue and verbal
response scales), the episodes of nausea (verbal response scale) and vomiting were recorded at 1, 3, 6
and 24 h, respectively, after the operation. Analgesic and antiemetic requirements were also recorded.
Results: No apparent drug side-effects were noted. Seven patients (14 per cent) in the treatment group
reported nausea and vomiting compared with 24 (46 per cent) in the control group (P = 0·001). In
the group of patients treated with dexamethasone, five (10 per cent) required antiemetics versus 23
(44 per cent) of those receiving placebo (P < 0·001). No difference in postoperative pain scores and
analgesic requirements was detected between groups.
Conclusion: Preoperative dexamethasone reduces postoperative nausea and vomiting in patients
undergoing laparoscopic cholecystectomy, with no side-effects, and may be recommended for routine
us
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
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