373 research outputs found
Leonardo da Vinci\u27s inventions and painting: Interview with Mario Taddei
No full textEntrevista com Mario TaddeiEntrevista com Mario Tadde
Arqueología davinciana multimedial
No full textMario Taddei fue invitado como experto internacional en el marco de la Escuela de Verano da Vinci 500, que tuvo lugar en agosto de 2019 en la Universidad Pontificia Bolivariana, seccional Medellín. Universitas tuvo la oportunidad de conversar con él y esto fue lo que nos contó sobre su trabajo.
Taddei es diseñador industrial del Politécnico de Milán, donde también fue docente. Ha sido líder de proyectos sobre instalaciones innovadoras en diferentes museos. Autor de más de siete libros y estudia a Leonardo da Vinci hace 20 años aproximadamente
Experimental pull-out tests and design indications for strength anchors installed in masonry walls
No full textThis study deals with the identification of the mechanical behavior of chemical anchors embedded in masonry walls. 108 pull-out tests are carried out in five types of masonry walls built with clay brick or vertically perforated units with cement mortar. Different parameters are taken into account: embedment depths, masonry type, anchor position (injection either in brick units or in mortar joints). The axial load capacity and the failure mode are observed for each test. The results are examined by means of elastic and plastic models assessing the efficiency of anchors installed in headers, stretchers or mortar joints. The anchors injected in mortar joints are shown to have much greater pull-out capacity than that found for anchors in bricks. Passing from 90 to 160 mm of embedment depth, a minimum increase by 40% of pull-out strength is observed. The most common failure modes are the sliding failure, which occurs for short anchors or weak masonry, and mixed sliding/cone failure, for long anchors or strong masonry. An analytical model is proposed to design anchors in order to avoid or at least to limit brittle masonry failures and to identify the field of application of uniform stress models
Il VII secolo: da Sabiniano (604-606) a Sergio I (687-701)
No full textIl contributo si basa sulle fonti testuali e sull'evidenza archeologica per ricostruire le caratteristiche della committenza artistica della Chiesa di Roma fra il pontificato di Sabiniano e quello di Sergio I.This study largely relies upon written sources and archaeological evidence. It aims at reconstructing the features of the artistic patronage of the popes of Rome throughout the time-span corresponding to the 7th century
Il ‘tesoretto’ di oggetti tardoantichi e bizantini della cattedrale di Gaeta
No full textIl Museo diocesano di Gaeta conserva un notevole “tesoretto” di oggetti di provenienza bizantina: si tratta di un pendente aureo a forma di croce, tre croci pettorali in stagno e in bronzo e, soprattutto di un gruppo di monete. Fra queste ultime si possono distinguere due esemplari aurei, l’uno dell’imperatore Michele VII (1071-1078), l’altro di Manuele I (1143-1180) e vari esemplari in lega di metalli “poveri” (billon), emessi da Isacco II Angelo. Tutti gli oggetti finora ritrovati emergono fortuitamente durante lavori di risistemazione del pavimento della cattedrale. Erano tenuti insieme da una custodia, rapidamente sbriciolatasi al contatto con l’aria. Sebbene non possano essere ricondotti ad uno strato archeologico, la loro presenza e' di per se' un elemento importante da tenere presente nell’affrontare lo studio della vita della cattedrale.The Museo Diocesano of Gaeta preserves a remarkable "treasure" made of Byzantine objects: a golden, cross-shaped pendant, three tin and bronze pectoral crosses, and a group of coins. Among these latter, there are two remarkable gold pieces, one struck by emperor Michael VII (1071-1078), the other by Manuel I (1143-1180). Furthermore, various exemplars in alloy of "poor" metals (billon) are to be noted, which were issued by Isaac II Angelos. All the objects found so far emerged fortuitously during renovation works of the floor of the cathedral. They were held together by a case, which quickly crumbled as soon as it came in contact with the air. Although these objects cannot be put in context with a medieval archaeological layer, their discover is in itself an important clue to be considered for the study of the history of the cathedral of Gaeta
Double epidural catheter technique in a patient with severe COPD undergoing major abdominal surgery: A case report
No full textINTRODUCTION AND IMPORTANCE: Chronic Obstructive Pulmonary Disease (COPD) leads to the development of postoperative pulmonary complications (PPC), such as atelectasis, pneumonia and respiratory failure. The use of epidural anesthesia, alone or combined with general anesthesia, is known to reduce the incidence of PPC and shorten tracheal intubation time. In major procedures involving both the lower and upper abdomen, central neuraxial block at a single level may be inadequate to provide sufficient metameric extension of anesthesia. This limitation could be overcome with the use of double epidural catheter (DEC), has proved effective in diverse surgical scenarios. CASE PRESENTATION AND CLINICAL DISCUSSION: We present the case of a woman affected by moderate-severe COPD scheduled for major abdominal cytoreductive surgery due to ovarian malignancy with planned xypho-pubic laparotomy. We developed and implemented a DEC-based strategy for perioperative pain management based on the extent of surgical incision and the high risk of difficult weaning from ventilation and PPC. We used intraoperative monitoring to guarantee adequate antinociception throughout the entire 350 min long demolitive surgical procedure. No additional top-ups of intravenous analgesia or neuromuscular blocking agent (NMBA) was needed during surgery; at the end of the procedure, the patient was extubated in the operating theatre, maintaining adequate respiratory function during the whole postoperative period. CONCLUSIONS: The DEC technique could be beneficial for patients undergoing cytoreductive surgery. In our case, this technique granted optimal analgesic coverage and was instrumental in achieving fast weaning from mechanical ventilation and early tracheal extubation. Systematic studies on this subject are warranted
FAMILY ASSOCIATIONISM AND DISABILITIES: APPROACHES AND INTERVENTION STRATEGIES A SCOPING REVIEW
No full textThis contribution intends to investigate the phenomenon of associationism of families of children with disabilities through a Scoping Review which has set itself, among its main objectives, that of identifying the approaches and support strategies adopted by the families of the associations. The results are in continuity with the first part of the study presented in a previous work by the author (****) which had the purpose of studying the roles, motivations and purposes of associations of families of children with disabilities, offering interesting suggestions and factors for reflection also for this article.The results described below urge special pedagogy to undertake research trajectories that turn the spotlight on the evolving pedagogical processes within families of children with disabilities, with particular attention to the associative dimension. The approaches of empowerment and resilience as well as coping and parent to parent support strategies attribute a strategic role to the family in its plurality of voices, identities, needs and desires which deserve to be adequately investigated
Homoerotic Desire and Masculine Identity in Tachibana Sotō’s Narrative
No full textThis paper explores two little-known works by Tachibana Sotō (1894–1959), a Japanese author marginal in modernist studies yet briefly mentioned in queer cultural studies. His 1938 novel Narin Denka heno Kaisō (My Memories of Prince Nalin), awarded with the Naoki Prize, belongs to mass literature and recounts the friendship between the narrator and an Indian prince in Japan. What initially appears to be the story of a friendship with veiled homoerotic undertones that challenges gender norms in pre-war Japan, then takes on the characteristics of a spy story in which the Japanese protagonist sides with the Indians against British interference. The second text, Nanshoku Monogatari (A Tale of Homoerotic Experiences, 1952), adopts a humorous, quasi-confessional style to depict the author’s adolescent infatuation with a younger classmate. Published amid the liberalised atmosphere of post-war kasutori culture, it revisits the Edo-period tradition of male-male desire (nanshoku) while exposing the stigma and contradictions surrounding sexuality in mid-twentieth-century Japan. This paper investigates how Tachibana’s fiction negotiates the continuity and rupture between the legacy of nanshoku, the moralisation of the war period, and the more tolerant expression of sexuality in the post-war period
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