196,287 research outputs found
Un ragazzo nelle spire del Reich. Il caso Valerjan Wrobel
No full textIl saggio illustra la vicenda biografica di un ragazzo polacco negli 1941-42. Si tratta di un percorso della soggettività nel contesto dell'attuazione del Piano Generale per l'Europa dell'Est, programmato dal regime nazista, come tappa decisiva entro il disegno di Nuovo Ordine europeo perseguito dal Reich. La storia del ragazzo polacco diventa paradigmatica per la comprensione di quel Nuovo Ordine, di cui la guerra contro la Polonia era il primo passo. Il saggio dimostra la rappresentatività e la capacità esplicativa di un vissuto individuale ai fini della interpretazione di un evento di portata generale
Architettura
No full textIl libro è il secondo di una serie concepita per documentare, attraverso la selezione di artefatti particolarmente eloquenti, la cultura costruttiva del legno diffusa nelle diverse regioni del territorio nazionale. Il volume documenta una casistica estesa di artefatti in legno rintracciati nel Lazio. Si trattano le Componenti architettoniche, gli Elementi di Arredo civile ed ecclesiastico e di Arredo domestico, gli Attrezzi da lavoro, i Giocattoli, le Macchine processionali, gli Oggetti del ciclo della vita, gli Strumenti musicali. Ogni oggetto ritenuto emblematico della categoria di appartenenza, è analizzato tecnologicamente e costruttivamente; se ne produce una descrizione testuale, secondo standards schedografici, e una descrizione grafica derivata dalla rilevazione diretta. La descrizione degli esempi è accompagnata da riferimenti bibliografici e documentari archivistici.
Il tema dell'architettura è sviluppato trattando: coperture, orizzontamenti (solai e scale) rinforzi strutturali, bussole e infissi interni, divisori e rivestimenti, pavimenti e soffitti, portoni e infissi esterni, modelli di architetture
Analisi del battito ciliare nella discinesia ciliare tramite algoritmi di motion detection
No full textEfficient Multiphysics Design Workflow of Synchronous Reluctance Motors
No full textThis paper proposes a new design strategy for Synchronous Reluctance machines, with cooperative design in the two environments SyR-e and Motor-CAD. The paper proposes to use the open-source SyR-e for initial, equation based design of the machine. Then, the design is validated and refined in Motor-CAD, in multiple physical domains. This synergy complements both design environments and turns into a comprehensive design package, not yet available in the literature, assembling accessible design equations, magnetic and mechanical FEA and drive operating profiles evaluation to the trademark thermal analysis of Motor-CAD. The cooperative design strategy is described in the paper with reference to the case of a Pure Synchronous Reluctance motor prototype for vehicular tractio
Eosinophil cationic protein in infants with respiratory syncytial virus bronchiolitis: Predictive value for subsequent development of persistent wheezing
No full textInfants with acute bronchiolitis during the first months of life are at increased risk of developing persistent wheezing and bronchial asthma later in life. The study of eosinophil cationic protein (ECP) suggests that eosinophil-related inflammatory mechanisms may play a role in respiratory syncytial virus (RSV) bronchiolitis. The aim of our study was to verify whether serum ECP (s-ECP) measurements are useful in predicting the development of persistent wheezing in children affected by RSV bronchiolitis during a 5 years follow-up period. Forty-eight infants were enrolled prospectively (mean age: 153.5 days). All had a clinical and radiological diagnosis of acute bronchiolitis and confirmed RSV infection. Peripheral eosinophil counts, levels of s-ECP, and serum IgE concentrations were measured during bronchiolitis. Five years later the children were re-evaluated in regard to their respiratory symptoms (standardized questionnaires) and atopic status (specific IgE levels). We observed significantly higher s-ECP levels (P < 0.001) at enrollment in subjects who developed persistent wheezing compared to subjects who did not show late wheezing. Initial s-ECP values allowed significant and correct prediction of persistent wheezing (P < 0.001). The risk to develop respiratory symptoms was 9.73 higher for infants with s-ECP levels greater than or equal to 8 mug/L than for those with s-ECP levels <8 mug/L (P < 0.000). In conclusion, our study suggests that s-ECP levels in infants with bronchiolitis are useful in predicting the risk to develop wheezing in the subsequent 5 years. (C) 2001 Wiley-Liss, Inc
Testing for Integrity Flaws in Web Sessions
No full textWeb sessions are fragile and can be attacked at many different levels. Classic attacks like session hijacking, session fixation and cross-site request forgery are particularly dangerous for web session security, because they allow the attacker to breach the integrity of honest users’ sessions by forging requests which get authenticated on the victim’s behalf. In this paper, we systematize current countermeasures against these attacks and the shortcomings thereof, which may completely void protection under specific assumptions on the attacker’s capabilities. We then build on our security analysis to introduce black-box testing strategies to discover insecure session implementation practices on existing websites, which we implement in a browser extension called Dredd. Finally, we use Dredd to assess the security of 20 popular websites from Alexa, exposing a number of session integrity flaws
Low-density areas on high-resolution computed tomograms in chronic pediatric asthma
No full textIn children with chronic persistent asthma, we evaluated whether the presence of increased residual volume (RV) after anti-inflammatory treatment correlates with the detection of low-density areas on high-resolution computed tomography (HRCT), similar to those in emphysema. METHODS: Children with a confirmed diagnosis of asthma (n = 32) were enrolled in a prospective study. All patients had reduction of airflow in the peripheral airways, increased RV, and increased serum eosinophil cationic protein (ECP) values indicating airway inflammation. All the children were treated with salmeterol (50 microg twice daily) and fluticasone (250 microg twice daily) for a 3-month period. RESULTS: At the end of treatment, peripheral eosinophil counts, serum ECP, forced expiratory volume in 1 second (FEV(1)), mean forced expiratory flow during the middle half of forced vital capacity (FEF(25-75)), RV, and total lung capacity values improved in all the patients. HRCT was normal in 22 children (68.8\%); in the remaining 10 subjects, low-density areas were found despite normalization of FEV(1), FEF(25-75), and significant reduction in ECP. A significant correlation was found between persistence of RV values >150\% predicted and the presence of low-density areas on HRCT (r = 0.84, P <.0001). CONCLUSIONS: Structural changes similar to emphysema are also present in asthmatic children. Our findings suggest that the persistence of increased RV may be used to identify subjects with low-density areas on HRCT
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