1,721,073 research outputs found
Staffieri tracheo-oesophageal prosthesis for voice rehabilitation after laryngectomy: an evaluation of characteristics
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[Human olfactory mucosa biopsy with endoscopic technique: clinical and structural observations on neurosensory epithelium rearrangement].
No full textOptical and electron microscopy have been widely used to study the structural features of olfactory epithelium in several Vertebrate species. To date, however, understanding of histopathological alterations in the human olfactory neuroepithelium has been quite limited due to the difficulty in obtaining well preserved, intact fragments of mucosa. The recent introduction of endoscopic biopsy techniques has made it possible to analyze this epithelium in greater detail. In the present work, endoscopic biopsy has been performed on samples from 10 rhinologically healthy subjects. The technique used proved quite simple and did not present any risks or complications. Moreover, all samples were well preserved, as confirmed by histology. In addition, the histological pictures suggest that normal rearrangement of neuroepithelium is not an uniform process but takes place following a zone pattern with distinct dynamics between neurosensorial and support cells. Greater diffusion of this technique would not only make it possible to use different techniques to gain more detailed knowledge of tissue structure, ultrastructure and dynamics in human neuroepithelium, but it would also provide improved diagnostic and forensic evaluation in cases of anosmia, disosmia and hyposmia
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
Collaborative design and manufacturing of a customizable voice prosthesis
No full textAn innovative approach to the development of biomedical devices must be intrinsically collaborative, because it requires a strict correlation among medical specialists and engineers, and a careful calibration of Rapid Prototyping and Rapid Tooling techniques in order to account for the required prosthesis design optimisation, customisation and lead time. In this paper, besides a discussion on some critical aspects relevant to the collaborative development of a voice prosthesis, some preliminary results on the functional design and the analysis of the fitting conditions of a composite mold manufactured using Rapid Prototyping (RP) techniques will be presented
Gender equality in the workforce: Reconciling work, private and family life in Europe.
Full text linkMills M, Tsang F, Präg P, Ruggeri K, Miani C, Hoorens S. Gender equality in the workforce Reconciling work, private and family life in Europe. Santa Monica, CA: RAND Corporation; 2014
Angina bullosa haemorragica: presentation of eigth new cases and review of the literature
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