Search results for "Bile"
showing 10 items of 2148 documents
Caso studio: Provincia di Palermo - Installazione di impianti fotovoltaici a ridotto impatto visivo ed elevata efficienza
2014
"L'energia è il filo d'oro che collega crescita economica, salute ambientale equità e opportunità sociali". L'assessorato Regionale dell'Energia e dei Servizi di Pubblica Utilità, unitamente a tutto il Governo Regionale, ha ben chiaro il senso di queste parole del Segretario Generale delle Nazioni Unite Ban Ki- Moon, pronunciate nel corso del suo intervento al 22°Congresso Mondiale dell'Energia di Daegu in Corea del Sud.L'impegno di Tutti è quello di creare le condizioni affinchè la Sicilia possa sfruttare al massimo le proprie potenzialità e le proprie risorse, per la realizzazione di un sistema energetico equo e sostenibile, che guardi con sempre più attenzione alle realtà locali come par…
Maximizing network capacity in an heterogeneous macro-micro cellular scenario
2011
The problem of resource allocation in cellular networks has been traditionally faced at two different levels: at the network level, in terms of frequency planning and reuse pattern design, and at the cell level, in terms of cell capacity optimizations based on channel-dependent scheduling, link adaptation, power control, and so on. While this second aspect has been deeply investigated in literature, the first aspect has been mainly faced with static or semi-dynamic reuse utilization solutions. In this paper we deal with the problem of multi-cellular resource allocation in heterogeneous OFDMA environments with reuse factor equal to 1, where base stations with different power constraints coex…
Border surveys and Time Location Sampling (TLS): an application on incoming tourism in Sicily
2012
The increasing need of reliable and detailed information at a regional and subregional level poses some challenges related with the measurement of tourists flows, for tourism destination management, planning and promotion purposes,. The aim of this work is twofold; first, it intends to analyse and discuss the main features and limits of the official border surveys conducted in the majority of world’s countries, within the framework of Time Location Sampling (TLS) design; second, it suggests the implementation of TLS design at a subnational level, by presenting the sampling design of the survey on incoming tourists in Sicily, carried out between 2009-2010, aimed at estimating the unobserved …
Self-reported dependence on mobile phones in young adults: A European cross-cultural empirical survey
2017
Background and aims: Despite many positive benefits, mobile phone use can be associated with harmful and detrimental behaviors. The aim of this study was twofold: to examine (a) cross-cultural patterns of perceived dependence on mobile phones in ten European countries, first, grouped in four different regions (North: Finland and UK; South: Spain and Italy; East: Hungary and Poland; West: France, Belgium, Germany, and Switzerland), and second by country, and (b) how socio-demographics, geographic differences, mobile phone usage patterns, and associated activities predicted this perceived dependence.\ud \ud Methods: A sample of 2,775 young adults (aged 18–29 years) were recruited in different…
Learning Environments in the 21st Century: A Mapping of the Literature
2020
Education has been transformed by significant breakthroughs in AI, mobile internet, cloud computing and Big Data technologies. More personalized educational settings are developed by increasingly integrating contemporary learning environments with new technologies. However, few examples of executed AI enabled learning interventions have been identified. Therefore, a mapping of literature on AI enabled learning systems was done. 121 studies published in the last five years were analyzed. This paper presents a discussion regarding on what mainly AI enabled contemporary learning environments are designed to achieve. The major contribution of the study is bringing awareness to researchers and s…
Metabolite Sensing GPCRs: Promising Therapeutic Targets for Cancer Treatment?
2020
G-protein-coupled receptors constitute the most diverse and largest receptor family in the human genome, with approximately 800 different members identified. Given the well-known metabolic alterations in cancer development, we will focus specifically in the 19 G-protein-coupled receptors (GPCRs), which can be selectively activated by metabolites. These metabolite sensing GPCRs control crucial processes, such as cell proliferation, differentiation, migration, and survival after their activation. In the present review, we will describe the main functions of these metabolite sensing GPCRs and shed light on the benefits of their potential use as possible pharmacological targets for cancer treat…
Le agenzie turistiche on line e il Grande Giubileo del 2000
2004
L'articolo riporta i principali risultati ottenuti dall'a. nel corso della ricerca sui siti internet delle agenzie turistiche e sulle strategie comunicative da loro attuate nel corso del Giubileo 2000.
A “Best Current Practice” for 3GPP-based cellular system security
2014
This paper is an attempt at formulating a Best Current Practice (BCP) for access security and a baseline for core network security in the 3GPP-based systems. This encompasses the 2G circuit-switched GSM system, the 2.5G packet-switched GPRS system, the 3G UMTS system and the 4G LTE/LTE-A system. The 3GPP have defined several security standards, but many measures are optional and there are several areas deliberately not covered by the 3GPP standards. The present document is therefore an attempt at pointing out the best available options and providing advice on how to achieve an overall system hardening, which is badly needed as the cellular systems have undoubtedly become one of the most cri…
GPRS Security for Smart Meters
2013
Part 1: Cross-Domain Conference and Workshop on Multidisciplinary Research and Practice for Information Systems (CD-ARES 2013); International audience; Many Smart Grid installations rely on General Packet Radio Service (GPRS) for wireless communication in Advanced Metering Infrastructures (AMI). In this paper we describe security functions available in GPRS, explaining authentication and encryption options, and evaluate how suitable it is for use in a Smart Grid environment. We conclude that suitability of GPRS depends on the chosen authentication and encryption functions, and on selecting a reliable and trustworthy mobile network operator.
GPS-GIS integrated system for electromagnetic pollution
2008
In these last years employment and spreading of GPS real-time kinematic techniques is greatly improved. Its application field is extended from traditional topographic surveys to environmental applications. In this work a monitoring project of electromagnetic pollution is shown; this project has been carried out in order to realize an infrastructure of measurement, transmissions, elaboration and management of surveyed data. In particular, the results of a research about the realization of a first prototype of advanced system based on the integration of GPS receivers and other sensors are shown. The research has been carried out in collaboration with "Dipartimento di Ricerche Energetiche ed A…