Petrarca, el texto de Terencio y Pietro da Moglio

[ES] Terencio fue uno de los autores que mayor interés suscitaron en Petrarca desde un punto de vista filológico, y sabemos que glosó al menos alguno de los varios mss. terencianos que estaban en su biblioteca. No conservamos ningún Terencio anotado de su puño y letra, pero tenemos dos mss. que (gracias a las subscriptiones que contienen) sabemos descienden de un ejemplar petrarquesco: sin embargo, y debido sobre todo a la extraordinaria complejidad de la historia del texto terenciano, la relación entre ambos mss. no había podido aclararse ni, por tanto, se había progresado en la reconstrucción del Terencio de Petrarca. Las principales aportaciones del presente artículo podrían resumirse así: 1, se identifican nuevos mss. que descienden del Terencio de Petrarca y se demuestra (en contra de lo que habían sostenido expresamente Sabbadini y Billanovich) que la importante edición terenciana de Pietro da Moglio (muy difundida sobre todo en Italia) contiene el mismo texto que los mss. de Petrarca; 2, se sitúa el conjunto que conforman todos estos mss. en la tradición de Terencio, y esto permite mostrar que la labor filológica realizada por Petrarca sobre el texto de las comedias no consistió en intentar restablecer la colometría correcta (como venía defendiéndose hasta ahora a partir de las subscriptiones antes citadas), sino en saber apreciar un Terencio particularmente noble y, a través del cotejo con otros mss., proponer puntualmente una colometría alternativa (pues, en efecto, se han descubierto marcas métricas que parece deben asignarse a Petrarca); 3, gracias en buena parte a los mss. nuevamente identificados (muy en particular al ms. de Estocolmo), se han podido atribuir a Petrarca glosas que se encuentran en algunos de ellos, aunque distinguiendo entre apostillas del propio Petrarca y glosas que con seguridad se encontraban en su ejemplar pero que provienen de otros mss.

Reproducción de un oficio remitido por el Ministro de Asuntos Exteriores italiano en el que se comunica el indulto de Juan Ajuriaguerra.

Fecha: 27-12-1937 (>1970 reproducción) / Unidad de instalación: Carpeta 45 - Expediente 1-2 / Nº de pág.: 1 (mecanografiada)

[R_Clavijo_SanPrudencio] Intensive Program ERASMUS: TOPCART. Geometric Documentation of the Heritage (report of activities 2010-2011)

[EN] Data contained in this record come from the following accademic activity (from which it is possible to locate additional records related with the Monastery):

The cross layer RMPA handover: a reliable mobility pattern aware handover strategy for broadband wireless communication in a high-speed railway domain

Enhancing the handover process in broadband wireless communication deployment has traditionally motivated many research initiatives. In a high-speed railway domain, the challenge is even greater. Owing to the long distances covered, the mobile node gets involved in a compulsory sequence of handover processes. Consequently, poor performance during the execution of these handover processes significantly degrades the global end-to-end performance. This article proposes a new handover strategy for the railway domain: the RMPA handover, a Reliable Mobility Pattern Aware IEEE 802.16 handover strategy "customized" for a high-speed mobility scenario. The stringent high mobility feature is balanced with three other positive features in a high-speed context: mobility pattern awareness, different sources for location discovery techniques, and a previously known traffic data profile. To the best of the authors' knowledge, there is no IEEE 802.16 handover scheme that simultaneously covers the optimization of the handover process itself and the efficient timing of the handover process. Our strategy covers both areas of research while providing a cost-effective and standards-based solution. To schedule the handover process efficiently, the RMPA strategy makes use of a context aware handover policy; that is, a handover policy based on the mobile node mobility pattern, the time required to perform the handover, the neighboring network conditions, the data traffic profile, the received power signal, and current location and speed information of the train. Our proposal merges all these variables in a cross layer interaction in the handover policy engine. It also enhances the handover process itself by establishing the values for the set of handover configuration parameters and mechanisms of the handover process. RMPA is a cost-effective strategy because compatibility with standards-based equipment is guaranteed. The major contributions of the RMPA handover are in areas that have been left open to the handover designer's discretion. Our simulation analysis validates the RMPA handover decision rules and design choices. Our results supporting a high-demand video application in the uplink stream show a significant improvement in the end-to-end quality of service parameters, including end-to-end delay (22%) and jitter (80%), when compared with a policy based on signal-to-noise-ratio information.

Analytical efficiency evaluation of a network mobility management protocol for Intelligent Transportation Systems

One of the major concerns in an Intelligent Transportation System (ITS) scenario, such as that which may be found on a long-distance train service, is the provision of efficient communication services, satisfying users' expectations, and fulfilling even highly demanding application requirements, such as safety-oriented services. In an ITS scenario, it is common to have a significant amount of onboard devices that comprise a cluster of nodes (a mobile network) that demand connectivity to the outside networks. This demand has to be satisfied without service disruption. Consequently, the mobility of the mobile network has to be managed. Due to the nature of mobile networks, efficient and lightweight protocols are desired in the ITS context to ensure adequate service performance. However, the security is also a key factor in this scenario. Since the management of the mobility is essential for providing communications, the protocol for managing this mobility has to be protected. Furthermore, there are safety-oriented services in this scenario, so user application data should also be protected. Nevertheless, providing security is expensive in terms of efficiency. Based on this considerations, we have developed a solution for managing the network mobility for ITS scenarios: the NeMHIP protocol. This approach provides a secure management of network mobility in an efficient manner. In this article, we present this protocol and the strategy developed to maintain its security and efficiency in satisfactory levels. We also present the developed analytical models to analyze quantitatively the efficiency of the protocol. More specifically, we have developed models for assessing it in terms of signaling cost, which demonstrates that NeMHIP generates up to 73.47% less signaling compared to other relevant approaches. Therefore, the results obtained demonstrate that NeMHIP is the most efficient and secure solution for providing communications in mobile network scenarios such as in an ITS context.