1,721,003 research outputs found
Regarding “Multidisciplinary Approach in Large-sized Submucosal Myoma: Hysteroscopic Myomectomy after Uterine Artery Embolization”
No full textLaboratory tests in assisted reproductive technologies
No full textInfertility is defined as the failure to achieve pregnancy after 12/24 months of regular unprotected sexual intercourse. Clinical and laboratory evaluations are required to find out the apparent determinants of infertility problem. Accurate diagnosis and effective therapy can facilitate achievement of fertility goals in many couples treated for infertility. Laboratory monitoring of the infertile couple include the female endocrinological assessment to evaluate the ovarian cycle physiology, the ovarian reserve, the thyroid function and others.Assisted reproductive technologies have become a common and accepted form of clinical care benefiting people of reproductive age who are subfertile or infertile. Traditional monitoring of ovarian hyperstimulation during assisted reproductive technologies treatment has included transvaginal ultrasonography plus the measurement of serum estradiol and progesterone levels to ensure safe practice by reducing the incidence and severity of ovarian hyperstimulation syndrome whilst achieving the good ovarian response needed for assisted reproduction treatment. The need for combined monitoring (using ultrasonography and serum hormone determination) during ovarian stimulation in assisted reproduction is controversial
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
Interventional radiology in the management of post-partum hemorrhage
No full textPost-partum hemorrhage (PPH) remains a major issue in the management of deliveries and is still burdened by significant morbidity and mortality. Several conservative treatments were developed to aid obstetric surgeons dealing with PPH, but in life-threatening cases, hysterectomy cannot be avoided. Interventional radiology had a significant development in last years. The improvement of embolization materials and techniques lead to new application scenarios. Several embolization protocols were proposed in last years showing the effectiveness of uterine artery embolization in the management of PPH. Nevertheless, many concerns remain on the modalities, indication and on timing of UAE. The aim of this article is to resume the state of the art-on these topics
COVID-19 vaccination in pregnancy and postpartum
No full textAIM: To identify whether COVID-19 vaccines should be administered in pregnant and breastfeeding women by reviewing the guidance and other evidence. METHODS: We reviewed the COVID-19 vaccination guidance for pregnant and breastfeeding women published to date and evidence from preclinical experimental and observational clinical studies, and discuss their implications. RESULTS: Pregnant women were excluded from the initial phase 3 clinical trials of COVID-19 vaccines resulting in limited data on their efficacy and safety during pregnancy and postpartum. As a result, since December 2020, there has been conflicting advice from public health, governmental, and professional authorities on this matter. From the end of 2020 up to now, some consensus guidance has been published with a prevalent precautionary approach on the administration of vaccines in pregnant women, in breastfeeding ones, or for those who are planning a pregnancy (either spontaneously or with assisted technologies). After the first few months of vaccine administration in some countries, more permissiveness seems to prevail, although with inconsistencies. At the moment, the results obtained by preclinical experimental and observational clinical studies suggest that the risks of the maternal COVID-19 outweigh the undocumented and hypothetical risks of the COVID-19 vaccines in pregnancy. Also, until two viral vector COVID-19 vaccines were associated with very rare thromboembolic events, all guidance had agreed that all approved COVID-19 vaccines could be administered in pregnancy. Actually, some concern has been expressed. CONCLUSION: COVID-19 vaccines administered in pregnancy can reduce the risk of severe COVID-19 and their serious consequences for mothers and their offspring. However, many aspects remain to be clarified
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
- …
