On the Stability of Isolated and Interconnected Input-Queued Switches under Multiclass Traffic

In this correspondence, we discuss the stability of scheduling algorithms for input-queueing (IQ) and combined input/output queueing (CIOQ) packet switches. First, we show that a wide class of IQ schedulers operating on multiple traffic classes can achieve 100 % throughput. Then, we address the problem of the maximum throughput achievable in a network of interconnected IQ switches and CIOQ switches loaded by multiclass traffic, and we devise some simple scheduling policies that guarantee 100 % throughput. Both the Lyapunov function methodology and the fluid modeling approach are used to obtain our results

Expression and Localization of aquaporin‐1 in Temporomandibular Joint Disc with Internal Derangement

Background: Internal derangement is the most frequent arthropathy affecting the temporomandibular joint, where its commonest form is anterior disc displacement with or without reduction. Despite the frequency of the disorder, the biochemical features of displaced discs are still unclear. Methods: We investigated the expression pattern and localization of aquaporin‐1, an important channel protein involved in plasma membrane water permeability, in patients with anterior disc displacement (both with and without reduction), with a view to assessing the characteristics of local tissue responses to the microenvironmental changes induced by abnormal mechanical loading of the displaced disc. Protein expression was studied by immunohistochemistry in different areas of discs from 18 patients with anterior disc displacement with or without reduction and in four normal controls. Results: A greater proportion of cells immunopositive for aquaporin‐1 were detected in diseased than in normal discs. Whereas protein expression was substantially similar in the different areas of normal discs, a significantly larger number of immunopositive cells were detected in the posterior band of displaced discs without reduction and in the anterior and intermediate bands of those with reduction. Conclusions: These findings suggest that aquaporin‐1 is expressed and upregulated in temporomandibular joint with anterior disc displacement (both with and without reduction)

FIRST REPORT OF SITTING ANOMOEPUS TRACKS IN EUROPEAN LOWER JURASSIC (LAVINI DI MARCO SITE - NORTHERN ITALY)

The palaeontologic site at Lavini di Marco, near to Rovereto (Trento), reveals a wide fossil tidal flat of Early Jurassic age (Calcari Grigi Formations – lower Member; Hettangian to lower Sinemurian ). An extensive set of dinosaur prints were discovered a few years ago and are now the subject of ichnological and paleobiological studies. The prints which are described in present short note are believed to represent the right and left foot of the same individual, set in a side-by-side, sub-parallel, sitting posture. The prints can be classified as Anomoepus Hitchcock 1848. Amongst recognised ichnospecies, most of the charachteristics of the prints here described point to Moyenisauropus dodai Ellenberger 1974 (recte Anomoepus dodai Olsen & Galton 1984) of Lesotho. By contrast, the prints found at Lavini di Marco differ from the Anomoepus found in central-east Europe. These characters would seem to confirm the Gondwanic origins of the Rovereto ichnofauna as previously supposed from the study of other taxa.

Ephemeral Museums in Pandemic Era: Bari and the Museo Provinciale that Was There, that Has Been and Has Never Been

Abstract The proposal introduces the theme of the communicative resilience of exhibitions during the Pandemic Era. On March 7, 2020, Italy and its museums, as well as the countless exhibitions housed in their rooms, were closed leaving hundreds, perhaps thousands, of works without the public: from the paintings of Raphael (Rome, Scuderie del Quirinale), to the tables of the Griffoni Polyptych assembled after three hundred years (Bologna, Palazzo Fava), to the statues of Canova (Rome, Palazzo Braschi), to the Sant'Antonio by Antonio Vivarini and to the San Felice in the chair by Lorenzo Lotto chased by Bernard Berenson in his Apulian 'pilgrimages' (Bari, Palazzo Ateneo). Indeed, the latter is the exhibition to which particular attention is paid here. The spaces of the ancient Museum have come back to life with the exhibition "Il Museo che non c'è. Arte, collezionismo, gusto antiquario nel Palazzo degli Studi di Bari 1875-1928". The exhibition involved lenders institutions such as Villa I Tatti - The Harvard University Center for Italian Renaissance Studies, the Central State Archive in Rome, the Pinacoteca of Bari 'Corrado Giaquinto' and several others. The exhibition in Bari was inaugurated on February 28th. After the first five days only the exhibition was closed for the advance of COVID 19 virus. In the 'great hall' - as the main space of the ancient Provincial Museum was called - everything remained suspended and perfectly finished: showcases, exhibitors, paintings, statues, clay and stone art objects. However, there was no longer the possibility of letting people, visitors enter. We said that it would have been wonderful to be said that it would have been wonderful to be able to reopen it at least 'virtually'. And so we did, with an immersive and advanced teaching perspective