Search results for "Ricerca"
showing 10 items of 641 documents
Presentazione
2011
In questa presentazione, è sintetizzata la versione rivista e ampliata degli interventi svolti dai relatori nel convegno intitolato "Cinematografia ed Educazione Interculturale: una finestra aperta verso il dialogo" realizzatosi il 23 marzo 2011. Questo Convegno è stato organizzato dai docenti afferenti al corso di laurea in Scienze dell'Educazione della Facoltà di Psicologia e Scienze della Formazione dell'Università "Kore" di Enna. In this presentation, the revised and expanded version of the interventions carried out by the rapporteurs in the conference on 23 March 2011 titled “Cinematography and Intercultural Education: a window open to the dialogue” is synthesized. This conference has …
La consegna educativa
2021
Una rilettura critica del saggio “La consegna”, di Antonio Bellingreri. La riflessione, di pedagogia fondamentale e filosofia dell’educazione, è volta ad indagare i tratti costitutivi, ovvero l’essenza, della persona umana, a partire da un’analisi dell’epoca contemporanea, restituitaci dalla letteratura come tardo-moderna. Di una gioventù privata di significativi modelli di comportamento e sistemi valoriali, diffidente del passato non meno che del futuro, intende farsi carico l’educazione, privilegiato strumento per re-immettere in circolo valori e significati smarriti. Divenendo consegna, la relazione educativa risponde al bisogno posto al fondo della persona umana (il bisogno di riconosci…
Identification and enrichment of thyroid cancer stem cells in anaplastic cell lines
2008
Limbal stem cells as a potential source of pancreatic beta cells
2009
BACKGROUND/RATIONAL Beta cell replacement therapy represents an alternative approach to conventional insulin regimen for the management of type 1 diabetes. Stem cells theoretically represent a suitable and renewable source of surrogate beta cells. Recently, it has been demonstrated that corneal epithelium contains stem cells in the basal layer of the limbus. Our aim was to isolate and characterize limbal stem cells (LSCs) from adult corneal-limbal biopsies, and to assess their capability to differentiate into insulin-producing cells. METHODS 2-3 mm2 biopsies were obtained from limbus and central cornea of four patients undergoing surgery for ocular diseases not involving conjuctive or corne…
No association between BRAFV660E and metalloproteinase activity in anaplastic thyroid cell lines
2008
Antitumor effect of aminobisphosphonates on anaplastic thyroid carcinoma cell lines.
2009
A polynomial algorithm solving a special class of hybrid optimal control problems
2006
Hybrid optimal control problems are, in general, difficult to solve. A current research goal is to isolate those problems that lead to tractable solutions [5]. In this paper, we identify a special class of hybrid optimal control problems which are easy to solve. We do this by using a paradigm borrowed from the Operations Research field. As main result, we present a solution algorithm that converges to the exact solution in polynomial time. Our approach consists in approximating the hybrid optimal control problem via an integer-linear programming reformulation. The integer-linear programming problem is a Set-covering one with a totally unimodular constraint matrix and therefore solving the S…
A robust calibration methodology for an On-Board Diagnostic car system
2006
New car models are now by law equipped with on-board diagnostic (OBD) systems aimed at monitoring the state of health of strategic components that ensure low levels of polluting exhaust emissions. During development phases, for each new car model, the OBD system must be finely calibrated. This article presents a robust calibration methodology taking into account sources of variability mainly due to production process, operating, and environmental conditions. The methodology enables us to evaluate the false alarm and failure to detect risks intrinsically related to the adopted calibration. An application concerning an upstream oxygen sensor monitored by the OBD is presented.
Decentralized Synchronization for Zigbee wireless sensor networks in Multi-Hop Topology
2010
Abstract The most effective solution for energy saving in low-rate wireless sensor networks is maintaining each node in a doze state as long as possible. In order to guarantee network connectivity, the intervals at which the network sensors are turned on and off have to be coordinated. We analyze the Zigbee MAC performance in sensor networks deployed in multi-hop topologies. For this networks, critical inefficiencies can arise due to transmissions performed by hidden nodes. We evaluate the impact of different synchronization schemes on the network performance, both in terms of network capacity and in terms of energy consumption. We show how the synchronization function can be opportunistica…
Monitoring of the effect of solar radiation and rain on the building envelope with integrated vertical vegetation
2022
The goal of the present paper is the verification of the improvement of the performance of a building envelope with a green wall also in conditions of high irradiance (≥0.6 kW/m2) and with variable meteorological conditions (sunny, cloudy, and rainy), with a focus on intense rainfall and tempest. The object of the analysis has been the Innovation and Technology for Development Center in the University Campus of the Polytechnics of Madrid, where a modular system of integrated vertical vegetation has been installed on the skin of the South and West prospects. The study is based on the analysis of the effective thermoregulation capacity of the system in different climatic situations and has be…