97 research outputs found
Giuseppe Dessí
No full textTwenty-five years after the death of one of the most refined and secluded writers of the second half of the 20th century, the complete catalogue of works and author papers in the Giuseppe Dessí Collection is available, thanks to the work and philological expertise of Agnese Landini. The filing of the material, deposited in the Contemporary Archives of the Gabinetto Vieusseux in Florence, allows to retrace the complete bibliography of the published and unpublished works of the Sardinian writer and, while telling the story of a narrative path through documents, it eases access to notes and drafts of novels, short stories, plays, anthologies, translations, essays, poems, interviews
sj-doc-1-acr-10.1177_02841851211055163 - Supplemental material for Chest radiography findings of COVID-19 pneumonia: a specific pattern for a confident differential diagnosis
No full textSupplemental material, sj-doc-1-acr-10.1177_02841851211055163 for Chest radiography findings of COVID-19 pneumonia: a specific pattern for a confident differential diagnosis by Nicholas Landini, Giulia Colzani, Pierluigi Ciet, Giovanni Tessarin, Alberto Dorigo, Luca Bertana, Carla Felice, Luca Scaldaferri, Martina Orlandi, Cosimo Nardi, Micaela Romagnoli, Luca Saba, Roberto Rigoli and Giovanni Morana in Acta Radiologica</p
Messapicetus longirostris a new genus and species of Ziphiidae (Cetacea) from the Late Miocene of "Pietra leccese" (Apulia; Italy)
No full textA new genus and species of Ziphiidae (Cetacea), Messapicetus longirostris from lower Tortonian sediments of "Pietra leccese', collected in Cisterna quarry (Lecce), are described. This new genus shows resemblance with Ziphirostrum from the late Miocene of Belgium, but its more elongated rostrum and its laterally compressed braincase warrant a distinction at genus and species level. Well preserved specimens of ziphiids are not common in the fossil record, so Messapicetus longirostris provides a valuable contribution to the knowledge of the phylogenetic and biogeographic relationships of this family. -Author
Corporate hierarchies and workplace voice
No full textWe investigate whether workplace voice through institutionalized forms of employee representation (ER) affects the design of firm hierarchies. We look at the role of ER within a knowledge-based view of hierarchies, where the firm's choice of hierarchical layers depends on the trade-off between communication and knowledge acquisition costs. Using a sample of more than 20,000 private-sector firms in 32 countries, we find that the presence of ER is positively associated with the number of organizational layers, though the relationship is tempered by firm size. ER positively correlates with job training, skill development and enhanced internal communication via staff meetings. The analysis of managers' perceptions suggests the higher frequency of meetings in firms with ER does not lead to more delays in the implementation of organizational changes. Taken together, our findings point to ER as facilitating the flow of information to top decision-makers and hence reducing communication costs. This may enable the firm to economize scarce cognitive resources without retarding the accumulation of new shop-floor capabilities. We contribute to recent literature on organizational design by suggesting ER institutions as possibly relaxing the trade-off between communication and knowledge acquisition costs within firms. Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of Millennium Economics Lt
Allogeneic cord blood red cells for transfusion
No full textAllogeneic cord blood red cells for transfusio
"Ecco la primavera". Francesco Landini e la ballata nel Trecento italiano
No full textFrancesco Landini (or Landino approx. 1325/35-1397) was one of the most important figures of the Ars nova Italian. Composer, poet, organist and organology expert was blind since childhood. He spent most of his life as organist and choirmaster at the church of San Lorenzo in Florence. He is an author representative of an era and a place, the Florence that has lived the nightmare of the Black Death in 1348. The great reputation which he enjoyed among his contemporaries allows the use of iconographic sources of him, of literary quotes that describe his work, of illuminated manuscripts that transmit its music. Like other contemporary authors he carried out an independent and parallel compositional activity from his job in San Lorenzo and wrote primarily secular music, in particular dealt with the kind of ballad, which radically transformed. The teaching unit presented here examines the ballad Ecco la primavera. It is divided into several independent sections and at the same time closely related: through reflective listening and conscious to conduct the class to identify the structure and character of the ballad (teaching of listening). The analysis of historical sources can then shed light on the context of production and fruition of the piece, as well as the personality of the composer (teaching of history). Finally, the data acquired will facilitate execution aware of the ballad itself, that is in line with his style and inserted into the soundscape for which it was produced (teaching of execution)
Glottis Closure Influences Tracheal Size Changes in Inspiratory and Expiratory CT in Patients with COPD
No full textRationale and Objectives: The opened or closed status of the glottis might influence tracheal size changes in inspiratory and expiratory computed tomography (CT) scans. We investigated if the glottis status makes the tracheal collapse differently correlate with lung volume difference between inspiratory and expiratory CT scans. Materials and Methods: Forty patients with chronic obstructive pulmonary disease whose glottis was included in the acquired scanned volume for lung CT were divided into two groups: 16 patients with the glottis closed in both inspiratory and expiratory CT, and 24 patients with the glottis open in at least one CT acquisition. Lung inspiratory (Vinsp) and expiratory (Vexp) volumes were automatically computed and lung δV was calculated using the following formula: (Vinsp - Vexp)/Vinsp × 100. Two radiologists manually measured the anteroposterior diameter and cross-sectional area of the trachea 1 cm above the aortic arch and 1 cm above the carina. Tracheal collapse was then calculated and correlated with lung δV. Results: In the 40 patients, the correlations between tracheal δanteroposterior diameter and δcross-sectional area at each level and lung δV ranged between 0.68 and 0.74 (ρ) at Spearman rank correlation test. However, in the closed glottis group, the correlations were higher for all measures at the two levels (ρ range: 0.84-0.90), whereas in the open glottis group, correlations were low and not statistically significant (ρ range: 0.29-0.34) at the upper level, and moderate at the lower level (ρ range: 0.51-0.55). Conclusions: A closed or open glottis influences the tracheal size change in inspiratory and expiratory CT scans. With closed glottis, the tracheal collapse shows a stronger correlation with the lung volume difference between inspiratory and expiratory CT scans
Development and analysis of a finite element model to simulate pulmonary emphysema in CT imaging
No full textIn CT imaging, pulmonary emphysema appears as lung regions with Low-Attenuation Areas (LAA). In this study we propose a finite element (FE) model of lung parenchyma, based on a 2-D grid of beam elements, which simulates pulmonary emphysema related to smoking in CT imaging. Simulated LAA images were generated through space sampling of the model output. We employed two measurements of emphysema extent: Relative Area (RA) and the exponent D of the cumulative distribution function of LAA clusters size. The model has been used to compare RA and D computed on the simulated LAA images with those computed on the models output. Different mesh element sizes and various model parameters, simulating different physiological/pathological conditions, have been considered and analyzed. A proper mesh element size has been determined as the best trade-off between reliable results and reasonable computational cost. Both RA and D computed on simulated LAA images were underestimated with respect to those calculated on the models output. Such underestimations were larger for RA (≈ -44 ÷ -26%) as compared to those for D (≈ -16 ÷ -2%). Our FE model could be useful to generate standard test images and to design realistic physical phantoms of LAA images for the assessment of the accuracy of descriptors for quantifying emphysema in CT imaging.SCOPUS: cp.pSCOPUS: cp.pinfo:eu-repo/semantics/publishe
Characterization of Connective Tissue Disorders related Interstitial Lung Disease (CTD-ILD) with Computed Tomography (CT) and Magnetic Resonance Imaging (MRI)
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