1,720,992 research outputs found
Deformational plagiocephaly at birth : an observational study on the role of assisted reproductive technologies
No full textBackground: Following the "back to sleep" recommendations, a striking rise in deformational plagiocephaly (DP) occurred. However, additional maternal, pregnancy and infant conditions may play a role. Objectives: We aimed to evaluate the prevalence of and risk factors for DP at birth. Additionally, given the association between assisted reproductive technologies (ART) use and unfavorable pregnancy events, we explored the association between ART and DP. Patients and Methods: A total of 413 neonates >33 weeks born at L. Sacco Hospital (Milan, Italy) from May 2011 through to January 2012 were enrolled. Data regarding parental, conceivement, pregnancy and delivery characteristics were recorded. Infants' skull measurements, including the oblique cranial length ratio (OCLR) were taken within 72 h after birth. Plagiocephaly was defined for OCLR > 105.9. Results: The prevalence of DP was 20.3%. It was associated with twinning (OR 5.0; 95%CI 2.22-11.1), pregnancy complications (OR 2.86; 95%CI 1.49-5.26), prematurity (OR 2.13; 95%CI 0.98-4.54), ART use (OR 2.00; 95%CI 0.90-4.35) and male gender (OR 1.79; 95%CI 0.94-2.50). Adjusting for multiple pregnancies however, the association between ART and DP disappeared. Conclusion: Results show that offspring of pregnancies conceived through ART do not have increased risk of DP. However, our numbers are small thus larger studies are needed for definitive conclusions
Acute generalized exanthematous pustulosis induced by paroxetine in an adolescent girl
No full textAcute generalized exanthematous pustulosis (AGEP) is a rare severe cutaneous reaction pattern, which, in the majority of cases, occurs in adults (males and females are equally affected). AGEP has rarely been described in the paediatric population (1, 2). Viral illnesses, vaccinations (e.g. anti-pneumococcal vaccine) and drugs (up to 90% of cases) have been implicated in the pathogenesis of AGEP (1, 2). Among drugs, the more commonly identified culprit agents are antibiotics (beta-lactams, macrolides, quinolones, pristinamycin, anti-infective sulphonamides), antimycotics (terbinafine, ketoconazole), calcium channel blockers (diltiazem), analgesics, antipyretics (paracetamol) and antimalarials (1). To date, however, the precise pathophysiological mechanism has not yet been identified and no report of AGEP caused by paroxetine, an antidepressant, has previously appeared in the English litterature
Nevus anemicus associated with neurofibromatosis type 1 in a neonate : a case report
No full textNeurofibromatosis type 1 (NF1) is a multisystemic autosomal dominant disease affecting approximately 1 individual in 3500. The diagnostic criteria developed by NIH in 1988 allow unequivocal diagnosis in all cases but the youngest children. Due to the variable phenotypic expression, the diagnosis of NF1 in the youngest may be challenging, particularly when the distinctive cutaneous lesions are missing. We describe the case of a neonate who presented at birth solely with a nevus anemicus. Although this is not considered a diagnostic feature, given the presence of a few café au lait lesions in the patient's father, the genetic test was performed and the diagnosis of NF1 confirmed. To our knowledge, the association between nevus anemicus and NF1 is only anedoctal. The peculiarity clinical manifestation of this case highlights the high variable expressivity of the NF1 gene mutation and reinforces the importance of genetic counseling in affected individuals
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
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