118,240 research outputs found
U.Galvanetto, L. Monopoli, C. Surace, A. Tassotti Experimental Application of a DamageLocalisation Technique Based on Smoothed Proper Orthogonal Modes
No full textAspetti biologici dei secondarismi ossei
No full textIn a review of the literature the authors analyze the mechanism of bone metastases in its phases: the separation of tumor cells from the primary mass, the vascular invasion, the transport, the endothelial attachment, the exit of tumor cells from the vessels, the establishing of a metastasis in the bone structure, the active bone resorption and/or the increased bone formation as a response of bone tissue. Also the factors responsible for bone reactions to tumor invasion, both lytic and blastic, have been analyzed. The active bone resorption is made by: osteoclastic activation, the quantitative predominant mechanism, and direct production of osteolytic enzymes by tumor cells. The factors activating osteoclasts are various: PTH related proteins, prostaglandins, osteoclastic activating factors, identified as interleukin 1, transforming growth factors α and β, tumor necrosis factors, linfotoxine. The bone formation is principally due to a osteoblastic activation by some factors: piezoelectric stimuli, TNF-β, PDGF, some interleukins and prostaglandins with diphasic action. A direct ossification of the stroma of some tumors, prostate and breast, in presence of osteoblasts, is also possible. Finally the use of some indicators of bone metabolism for the diagnosis of bone metastases has been reported
Metodologie classiche e tecniche satellitari: analisi comparata dei risultati nella determinazione di un poligono sperimentale di alta precisione
No full textViene analizzata una rete geodetica con lati fino ad oltre i dieci chilometri, determinata sia con tecniche topografiche classiche sia con tecniche satellitari (GPS statico relativo) presentando un confronto tra i risultati dei due metod
Biological aspects of bone metastases
No full textIn a review of the literature the authors analyze the mechanism of bone metastases in its phases: the separation of tumor cells from the primary mass, the vascular invasion, the transport, the endothelial attachment, the exit of tumor cells from the vessels, the establishing of a metastasis in the bone structure, the active bone resorption and/or the increased bone formation as a response of bone tissue. Also the factors responsible for bone reactions to tumor invasion, both lytic and blastic, have been analyzed. The active bone resorption is made by: osteoclastic activation, the quantitative predominant mechanism, and direct production of osteolytic enzymes by tumor cells. The factors activating osteoclasts are various: PTH related proteins, prostaglandins, osteoclastic activating factors, identified as interleukin 1, transforming growth factors α and β, tumor necrosis factors, linfotoxine. The bone formation is principally due to a osteoblastic activation by some factors: piezoelectric stimuli, TNF-β, PDGF, some interleukins and prostaglandins with diphasic action. A direct ossification of the stroma of some tumors, prostate and breast, in presence of osteoblasts, is also possible. Finally the use of some indicators of bone metabolism for the diagnosis of bone metastases has been reported
Political ontology, community, and institutions : Roberto Esposito in dialogue with contemporary thinkers
No full textPolitical Ontology, Community, and Institutions offers a broad view of the current philosophical dialogue in Italy, both in relation to Robert Esposito's own thought and with respect to major issues and authors of crucial philosophical relevance. From his earliest works, Esposito questions the crisis of politics and why thought is unable to convincingly respond to it. He does so by distancing himself not only from political theology but also from those paradigms-destituent and constituent-that have lost nowadays much of their analytical and propositional capacity. However, his proposal is not only critical. Esposito's thought relates to our present through the creation of new categories-among the most recent, those of "instituting thought" and "common immunity"-capable of opening a breach in an apparently increasingly closed horizon. Therefore, dealing with his thought means, first of all, dealing with our present. This is the main goal of this volume, which focuses on Esposito's dialogue with major contemporary thinkers. Also included is an unpublished interview with Esposito conducted by the editors
Introduction [to: Political Ontology and Community, ed. by Laura Cremonesi, Rita Fulco and Valentina Surace, New York, Suny Press, 2025]
No full text
Giovanni Santamaura, copista al servizio del cardinale Guglielmo Sirleto
No full textIn un ampio panorama, sono riconosciuti e analizzati i manoscrtti greci vergati dal copista cipriota Giovanni Santamaura per Guglielmo Sirleto, Cardinale Bibiliotecario di Santa Romana Chiesa, nel periodo compreso tra il 1582, anno di arrivo a Roma del Cipriota, e l'0ttobre 1585, data di morte del prelato calabrese
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