1,720,955 research outputs found
Does uterine position affect pain intensity during outpatient diagnostic hysteroscopy?
No full textObjective: To assess the impact of uterine position on pain intensity during outpatient diagnostic hysteroscopy. Materials and Methods: Retrospective data from 312 diagnostic hysteroscopy patients were evaluated. Pain was measured using a 10-cm visual analog scale (VAS). Analyses were performed to determine associations between uterine position [anteverted-anteflexed (AA), anteverted-retroflexed (AR), retroverted-anteflexed (RA), retroverted-retroflexed (RR)], and pain intensity during the procedure (VAS > 3 vs. VAS ≤ 3). Patient characteristics and clinical variables were evaluated using univariate and multivariate analysis. Results: Logistic regression analysis revealed no association between uterine position and pain intensity during outpatient diagnostic hysteroscopy [AA uterus, adjusted odds ratio (AOR) = 0.82, confidence interval (CI): 0.39–1.72; AR uterus, AOR = 0.65, CI: 0.25–1.71; RA uterus, AOR = 1.37, CI: 0.38–4.84; RR uterus, AOR = 0.84, CI: 0.22–3.17]. Conclusion: The present data suggest that uterine position does not affect pain intensity during diagnostic hysteroscopy
Age-related changes in the diagnostic assessment of women with severe cervical lesions
No full textObjectives To evaluate the effect of age on the diagnostic assessment of women with severe cervical intraepithelial neoplasia (CIN).Methods This retrospective observational study included 338 consecutive women with a diagnosis of CIN3 on cone specimen. Patients were divided into three groups according to age: = 50 years (Group C). Clinical and colposcopic variables were compared, and human papillomavirus (HPV) genotype distribution was measured.Results The most common HPV genotype was HPV-16 (63.65%), followed by HPV-33 (7%), HPV-18 (6.2%), and HPV-31 (5.4%). The rate of the following high-grade lesion predictors was lower in Group C than in Groups A and B: HPV-16 infections (55.9% vs. 75% vs. 70.9%, respectively, p = 0.022); high-grade colposcopic impression (29.4% vs. 51.8% vs. 51.7%, respectively, p < 0.0001); and high-grade cytological changes (30.9% vs. 56.2% vs. 45.4%, respectively, p < 0.025). An endocervical lesion location was more frequent in Group C than in Groups A and B (55.6% vs. 6.8% vs. 11.8%, respectively, p < 0.0001).Conclusion Women aged 50 years and older with CIN3 showed a significant reduction of high-grade lesion predictors along with physiological confounding cervical changes (transformation zone type 3 and endocervical lesion location). The diagnostic work-up of cervical lesions in older women should provide their potential consideration as a special population
Diagnostic accuracy of endometrial thickness for the detection of intra-uterine pathologies and appropriateness of performed hysteroscopies among asymptomatic postmenopausal women
No full textObjective: To measure the diagnostic accuracy of endometrial thickness for the detection of intra-uterine pathologies among asymptomatic postmenopausal women, and to test the diagnostic accuracy and appropriateness of performed hysteroscopies.Study design: Prospective study of 268 asymptomatic postmenopausal women with endometrial thickness >= 4 mm referred to diagnostic hysteroscopy. The diagnostic accuracy of various endometrial thickness cut-off values was tested. Histological and hysteroscopic results were compared to measure the diagnostic accuracy of outpatient hysteroscopies.Results: No endometrial thickness cut-off values had optimal diagnostic accuracy [positive likelihood ratio (LR+) >10 and negative likelihood ratio (LR-) = 8 mm (LR+ 10.05 and LR- 0.22). An endometrial thickness cut-off value >= 10 mm did not miss any cases of endometrial cancer. The success rate of diagnostic hysteroscopy was 89%, but 97% of these revealed a benign intra-uterine pathology. The diagnostic accuracy of hysteroscopy was optimal for all intra-uterine pathologies, except endometrial hyperplasia (LR- 0.52).Conclusion: Using an endometrial thickness cut-off value >= 4 mm, only 3% of performed hysteroscopies were useful for the detection of pre-malignant or malignant lesions. Despite the finding that endometrial thickness did not show optimal diagnostic accuracy, using the best cut-off value (>= 8 mm) may be helpful to decrease the number of false-positive results. No cases of endometrial cancer were diagnosed in asymptomatic postmenopausal women with endometrial thickness <10 mm. (C) 2014 Elsevier Ireland Ltd. All rights reserved
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
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