1,720,981 research outputs found
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
A Case of Bullous Rash Apparently Triggered by Meningococcal and Rotavirus Vaccines in an Infant: Focus on Infantile Bullous Pemphigoid
Full text linkBullous pemphigoid (BP) is an autoimmune bullous disease and is a rare condition in childhood. Acquired tense acral bullae and fixed urticarial annular lesions on the trunk are diagnostic clues of infantile BP. Diagnosis is supported by immunosorbent assay (IgG anti-BP180 and BP230) and direct immunofluorescence (linear deposition of IgG at the dermo-epidermal junction). Topical and/or systemic corticosteroids are the first-line treatment. The prognosis is good with a self-limited clinical course. Differential diagnoses include impetigo and other bullous diseases in children, such as dermatitis herpetiformis, linear IgA bullous dermatosis and erythema multiforme. The etiopathogenesis is still unknown, and the role of antigen stimuli such as infections, drugs and vaccination is still debated
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
Oral pigmentation in children: a diagnostic challenge
No full textOral pigmentation in children: a diagnostic challenge
Multiple primary melanomas in Udine, northeastern Italy: a focus on epidemiology and new risk factors
No full textPatients diagnosed with melanoma are at an elevated risk of developing subsequent primary melanomas. The aim of this study was to assess the prevalence and identify the risk factors associated with multiple primary melanomas (MPMs) in patients referred to the melanoma outpatient service of the Dermatology Unit at the University Hospital of Udine, Italy. We conducted a retrospective analysis on patients with MPMs. For each patient demographic, clinical, and histological data were collected. For each excised melanoma, we recorded Breslow thickness, histological subtype, and anatomical site. A total of 233 patients with melanoma were included in the study, comprising a subgroup of 51 (22%) patients diagnosed with MPM. The mean Breslow thickness for patients with a single melanoma was significantly higher than the Breslow thickness for the first melanoma in the MPM subgroup. Furthermore, a statistically significant decrease in Breslow thickness between the first and second melanomas was observed. In our cohort, patients with MPM had a significantly higher prevalence of nonmelanoma skin cancers (NMSCs) compared with those with a single melanoma. Our study indicates that the prevalence of MPM in the province of Udine is among the highest reported globally. Our finding aligns with the broader literature, which consistently reports lower thickness in second melanoma compared with first melanoma. Finally, the higher prevalence of NMSC in these patients suggests a potential link to chronic ultraviolet exposure
Eosinophilic Polymorphous Pruritic Eruption Associated With Radiotherapy: Clinical, Dermoscopic, and Histological Aspects
No full textNo abstract availabl
Biological therapy in patients with psoriasis: What we know about the effects on renal function
No full textPsoriasis is a chronic inflammatory dermatosis affecting 2%–3% of the general population. The link between psoriasis and renal dysfunction has been investigated, demonstrating a common pro-inflammatory pathogenesis. This study is aimed at evaluating renal function in patients with moderate-to-severe chronic plaque psoriasis treated with biological therapy. We analyzed 92 patients, correlating PASI and serum creatinine levels at baseline, after 6 months and after 1 year of continuous treatment with biological therapy. Data were analyzed using paired t-test and the linear mixed model for PASI and serum creatinine levels correlation, whereas the analysis of variances (ANOVA) was used for creatinine levels assessment between the baseline, the 6-months and, 1-year later evaluation. We observed a significant mean decrease in comparing serum creatinine levels after 1 year of biological therapy (p < 0.001). Interestingly, PASI reduction is correlated with creatinine decrease, and the renal function improvement is greater when complete psoriasis remission is attained. Our data suggest that a drop in systemic inflammation, secondary to biological therapy administration, might improve renal function. Future research is needed to confirm and expand our findings
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