1,720,974 research outputs found

    Escaping from COVID‐19 emergency accounting on previously infected subjects?

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    The efficacy of vaccination to prevent a huge widespread SARS-CoV2 infection is quite undoubtedly assessed by recent data and reports, yet the co-existence of naturally immunized (serum positive, SP) non-vaccinated people, SP vaccinated people and naïve (serum negative) people, should thoroughly revise our epidemiological overview and data interpretation about social contacts and even restriction measures. We are not merely talking about a blank immune population needing urgent vaccination but of a complex milieu of immunized subjects, whose thorough and expert knowledge may provide fundamental insights to improve the management of COVID-19 pandemic emergency. For example, upon vaccination, a good recommended practice is to evaluate both mucosal and serum immunity, by a quantitative salivary sIgAs and serum IgGs search, better if along a swab test, in order to group individuals called for vaccination in cohorts of susceptibility, which should enable physicians to take a decision about how many doses of vaccine and when, they should take into consideration, based on the previous immunity assessed from the subject. Actually, it seems that vaccines act quite exclusively as boosters This article is protected by copyright. All rights reserved

    Epidural neural fibrolipoma of the thoracic vertebral canal.

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    Neural fibrolipoma is a benign tumor that most frequently infiltrates the median nerve. The authors describe a patient with spinal cord compression syndrome caused by a neural fibrolipoma. The tumor originated in the thoracic nerve at the T6-7 extradural level in the left conjugate foramen and extended into the thoracic cavity. Total removal was achieved by a combined posterior and costotransversectomy approach. Postoperatively, the patient's spinal cord compression syndrome resolved. No tumor recurrence has been observed in medium-term follow-up. This is the second case of an extradural spinal neural fibrolipoma to be reported in the literature

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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
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