1,721,052 research outputs found
Corrigendum to “Tregs and Th17 lymphocytes in human DYRK1A haploinsufficiency” [Immunol. Lett. 214 (2019) 52–54](S0165247819302342)(10.1016/j.imlet.2019.08.003)
No full textThe authors regret for not publishing the correct order of authors in the original article. The correct authorship is: Valencic E, Todaro F, Piscianz E, Sirchia F, Spinelli AM, Tommasini A, Badolato R, Faletra F. The authors apologise for the inconvenience caused
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
Real-time 3-dimensional transesophageal echocardiography during double percutaneous mitral edge-to-edge procedure
No full textIdentification of the first duplication in MYH9-related disease: a hot spot for unequal crossing-over within exon 24 of the MYH9 gene.
No full textMYH9-related disease (MYH9RD) is a rare autosomal dominant disorder caused by mutations in MYH9, the gene encoding the heavy chain of non-muscle myosin IIA. All patients present with congenital macrothrombocytopenia and inclusion bodies in neutrophils. Some of them can also develop sensorineural deafness, presenile cataracts, and/or progressive nephritis leading to end-stage renal failure. The spectrum of mutations so far identified is peculiar, consisting of mostly missense mutations. Others are nonsense and frameshift mutations, all localized in the COOH terminus of the protein, or in-frame deletions. We report a family with three affected members carrying a novel mutation, the first duplication (p.E1066_A1072dup), of MYH9. The mutation was localized within exon 24, where the presence of a 16 nucleotide repeat was likely to be responsible for unequal crossing-over. Of note, a deletion of the same amino acids 1066_1072 was also identified in another MHY9RD family. Since two of the four patients with the duplication or the deletion in exon 24 were affected with bilateral neonatal cataracts, we speculate that these mutations might correlate with the ocular defect, which is reported only in 16% of MYH9RD patients
A Novel CRYBB2 Missense Mutation Causing Congenital Autosomal Dominant Cataract in an Italian Family.
No full textCongenital cataract is a leading cause of visual impairment in children and brings approximately 10% of childhood blindness worldwide. Molecular analysis revealed ~60 loci to be associated with several phenotypes of childhood cataracts. Until now, more than 30 loci and 18 genes on different chromosomes have been associated with autosomal dominant congenital cataract (ADCC). Here, we present a three-generation Italian family with a non syndromic ADCC. A linkage analysis carried out using HumanCytoSNP-12 DNA Analysis BeadChip led us to identify ten genomic regions virtually involved in the disease. All the genes located in these regions were scored for possible relationship with ADCC and, according to a strict clinical and genetic selection, 4 genes have been analyzed. A novel sequence variant was found in the CRYBB2 gene (p.Ser143Phe). This variant affects a conserved aminoacid in the third Greek key motif of the protein, cosegregates with the disease phenotype in all affected individuals and is not present both in the unaffected family members and 100 healthy control subjects. Finally, we identified the first CRYBB2 mutation in an Italian family causing a clinical picture of ADCC
Hearing loss and brain abnormalities due to pathogenic mutations in ADGRV1 gene: a case report
No full textHearing loss, both in its syndromic and non-syndromic forms, is the most common sensory disorder, with more than 460 million people affected worldwide. It has been shown that at least 50% of the congenital or childhood hearing loss cases are attributable to genetic causes, leading to the so-called hereditary hearing loss. The correct genetic counselling and molecular diagnosis of hereditary hearing loss are particularly tricky, since they are characterised by a substantial clinical and genetic heterogeneity, partly not yet discovered. In this light, the constant analysis of large cohort patients, together with data sharing between different research groups, is essential for increasing our knowledge on the clinical features of patients and their genetic background, helping in the definition of correct genotype-phenotype correlations. We describe the case of a 7-year-old child affected by apparent non-syndromic hearing loss and presenting with several asymptomatic brain abnormalities caused by mutations in the ADGRV1 gene. The identification of this additional phenotype increases the spectrum of the clinical characteristics of patients carrying pathogenic mutations in the ADGRV1 gene and, therefore, should prompt clinicians to explore the phenotype of these patients
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