1,720,956 research outputs found
Ectopic pregnancy: a life threatening gynaecological emergency
Get PDFBackground: Ectopic pregnancy is a life-threatening gynecological emergency, and a significant cause of maternal morbidity and mortality.Methods: This is a retrospective study of ectopic pregnancies managed at M. S. Ramaiah Medical College and Hospital, Bangalore, India over a period of 1 year from March 2015 to March 2016. The medical records of the patients managed for ectopic pregnancy during the period, under review were retrieved and data were collected from registers. There were 30 cases of ectopic pregnancies over one year.Results: Ectopic pregnancy constituted 3% of all gynecological admissions, and its incidence was 2.5%. The mean age of the patients was 26 ± 2 years, 21 of 30 (70%) had ruptured ectopic pregnancies, and the remaining nine (30%) were unruptured. The commonest (20 of 30, 66.6%) clinical presentation was abdominal pain, and the commonest (9 of 30, 30%) identified risk factor was a previous history of induced abortion.Conclusions: Ectopic pregnancy is a recognized cause of maternal morbidity and mortality and has remained a reproductive health challenge to manage
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
Risk factors for post-partum hemorrhage in patients who underwent operative vaginal delivery in a tertiary care center
Get PDFBackground: Operative vaginal delivery is a timely intervention to cut short second stage labor when imminent delivery is in the interests of mother, fetus, or both. It reduces second stage cesarean section morbidity and uterine scar and its influence on future obstetric career. The possible structural neonatal adverse outcomes due to operative vaginal delivery are well quantified. However, its effects on maternal outcome need to be understood better. In this paper, we study the effect of operative vaginal delivery on maternal post-partum hemorrhage (PPH) and the associated risk factors.Methods: It was a retrospective study carried out for the period July 2016 to July 2020 at Ramaiah Medical College, Bengaluru. Total number of vaginal deliveries in this period were 6318. Out of these, 1020 patients underwent assisted vaginal delivery using vacuum/ forceps/ sequential use of instrument. Blood loss greater than 500 ml is considered PPH for the purpose of this study. 15% of the study population was noted to have PPH. We employ a multivariate logistic regression to identify statistically significant risk factors for PPH in women undergoing operative vaginal delivery.Results: The logistic regression model identifies multiparity, maternal age, neonatal birth weight more than 3.5 kg, application of forceps in women with hypertensive disorders, III-degree tear, cervical tear to significantly increase the risk of PPH in our study population.Conclusions: Certain factors seem to increase the risk of PPH in operative vaginal delivery. The risks and benefits must be weighed properly before use of instruments
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
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