Search results for "azioni"
showing 10 items of 4786 documents
Testing the shape-similarity hypothesis between partide-size distribution and water retention for sicilian soils
2012
Application of the Arya and Paris (AP) model to estimate the soil water retention curve requires a detailed description of the particlesize distribution (PSD) but limited experimental PSD data are generally determined by the conventional sieve-hydrometer (SH) method. Detailed PSDs can be obtained by fitting a continuous model to SH data or performing measurements by the laser diffraction (LD) method. The AP model was applied to 40 Sicilian soils for which the PSD was measured by both the SH and LD methods. The scale factor was set equal to 1.38 (procedure AP1) or estimated by a logistical model with parameters gathered from literature (procedure AP2). For both SH and LD data, procedure AP2 …
Le vittime del racket. Imprenditori e commercianti alle prese con Cosa Nostra, ‘Ndrangheta e Camorra
2014
Il lavoro propone una ricerca su un mondo psichico fin qui ancora inesplorato: i pen-sieri, le emozioni, l’esperienza delle vittime del racket delle tre grandi organizzazioni criminali del meridione d’Italia: la Mafia, la Camorra e la ‘Ndrangheta. L’obiettivo è comprendere le multi-sfaccettate questioni psico-antropologiche e sociali sulle quali le organizzazioni criminali si sono radicate, ed in particolare quali dinamiche psico-relazionali e quali codici transculturali entrino in gioco nel complesso e controverso rapporto tra vittima e sistema criminale, tra vittima e sistemi di supporto. Con imprenditori e commer-cianti vittime della criminalità organizzata, sono stati analizzati i vissu…
Associazioni e fondazioni come forme organizzative d’impresa: frammenti di disciplina in tema di trasformazione eterogenea e prospettive di riforma
2005
Conclusioni
2010
Riflessioni conclusive su una ricerca sull'associazionismo culturale a Palermo
IL MUTUALISMO DEI SICILIANI D’AMERICA
2014
Il saggio affornta le prime forme di associazionismo degli emigrati siciliani in America
PROVE DI COLTIVAZIONE DI COMPOSITE DI INTERESSE OFFICINALE IN AMBIENTE SEMI-ARIDO.
2009
All’interno della flora officinale mediterranea, le Composite assumono un ruolo di primaria importanza. Nella sola Sicilia, esse rappresentano circa il 19 % del totale delle specie spontanee considerate di maggior interesse erboristico, costituendo la famiglia a diffusione più ampia. Alcune delle essenze più significative sono senza dubbio la Calendula (Calendula officinalis L.), il Partenio (Tanacetum parthenium L.) e il Cardo mariano (Silybum marianum Gaertn.). Prospettive estremamente interessanti appaiono inoltre collegate all’introduzione di Composite alloctone dotate di forti potenzialità agroindustriali, tra le quali ad esempio il Piretro (Chrisanthemum cinerariaefolium (Trev) Bocc.)…
Non-cooperative available bandwidth estimation towards ADSL links
2008
Existing tools for the estimation of the end- to-end available bandwidth require control of both end hosts of the path and this significantly limits their usability. In this paper we present ABwProbe, a single-ended tool for available bandwidth estimation against non-cooperative hosts. Although ABwProbe is general enough to be used on any Internet path, we focus our attention on ADSL links exploring the possibility of measuring the downlink available bandwidth of a non-cooperative ADSL host. We study the effect of cross-traffic on the uplink, finding that only large packets may deteriorate ABwProbe's measurements and we present two techniques to detect and filter the effect of uplink cross-…
Capacity Estimation of ADSL links
2008
Most tools designed to estimate the capacity of an Internet path require access on both end hosts of the path, which makes them difficult to deploy and use. In this paper we present a single-sided technique for measuring the capacity without the active cooperation of the destination host, focusing particularly on ADSL links. Compared to current methods used on broadband hosts, our approach generates two orders of magnitude less traffic and is much less intrusive. Our tool, DSLprobe, exploits the typical characteristics of ADSL, namely its bandwidth asymmetry and the relatively low absolute bandwidth, in order to measure both downlink and uplink capacities and to mitigate the impact of cross…
Fast Available Bandwidth sampling for ADSL links: rethinking the estimation for larger-scale measurements
2009
Most existing tools for measuring the end-to-end available bandwidth require access to both end-hosts of the measured path, which severely restricts their usability. Few tools have been developed to overcome this limitation, but all of them focus on achieving high precision and are not suitable for large campaigns. In this paper we develop FAB-Probe , a tool aimed at characterizing the available bandwidth of a large number of paths, adapting it particularly for ADSL settings. FAB-Probe is an evolution of ABwProbe , a tool that estimates the available bandwidth in non-cooperative ADSL environments. Analyzing carefully the needs of such a characterization tool, we optimize and rethink ABwProb…
Assessing the suitability of American National Aeronautics and Space Administration (NASA) agro-climatology archive to predict daily meteorological v…
2017
Abstract For decades, the importance of evapotranspiration processes has been recognized in many disciplines, including hydrologic and drainage studies, irrigation systems design and management. In this research, the suitability of the Prediction Of Worldwide Energy Resource database published by the American National Aeronautics and Space Administration (POWER-NASA), to estimate daily meteorological variables and ET 0 was assessed in Sicily, Italy, for the period 2006–2014, based on ground data measured by a network of climate stations belonging to the regional Agro-meteorological Information Service (SIAS). After comparing the climate data (minimum, T min , maximum, T max , and average, T…