Search results for "stock"
showing 10 items of 878 documents
Modelling strategies for the reduction of fat dormice in northern Italian hazel groves
2018
The production of hazelnuts represents an important resource for several Italian rural areas. Sicily and Piedmont, two of the most important producers of hazelnuts, are affected by the presence of the dormouse (Glis glis), that has considerably severely harmed the production of hazelnuts. This study aims to analyse the issue in the Province of Cuneo in Piedmont and to evaluate the sustainability of the policies implemented by using the system dynamics (SD) methodology. An SD predator-prey microworld was built to reproduce the main relevant cause and effect relationships between the development of the dormouse population and local hazelnut production. The results of the SD microworld simulat…
Could cattle ranching and soybean cultivation be sustainable? A systematic review and a meta-analysis for the Amazon
2021
Abstract: Tropical forests are being destroyed to make space for agricultural activities with the assumption that they are required to feed the growing global population. Consequently, more sustainable practices are needed to guarantee food security and environmental protection of highly threatened natural biodiversity hotspots like the Amazon rainforest. Cattle ranching and soybean cultivation are by far the greater drivers of land use change and deforestation in the Amazon region. We performed a systematic review of papers related to these two main drivers and a meta-analysis on the effects of sustainable practices on different ecosystem services. The results of the review highlight a lar…
The ecological role of Pyrus Spinosa Forssk. in the ecosystem recovery and land restoration of Mediterranean woodlands
2021
In the Mediterranean basin, large areas still call for active reforestation, having a very low woody cover, thus resulting less resistant and resilient to climate change and suffering from a higher risk of soil degradation processes. Knowing the effects on soil fertility and carbon sequestration of single woody species can be of great practical importance, although being rarely tested. We aimed to assess the effect of Pyrus spinosa on soil fertility (soil carbon and nitrogen), microbial biomass and carbon sequestration (in aboveground stems) of Mediterranean pasturelands. The research was carried out in Ficuzza Nature Reserve (NW Sicily), where large areas are composed of extensive pasturel…
Energy analysis of the buildings stocks. Scaling from national to regional and urban contexts
TOWARDS THE DECARBONIZATION OF THE EU BUILDING STOCK: AN INTEGRATED BUILDING STOCK RENOVATION MODELING APPROACH
2020
In Europe, the residential building stock is responsible for about 40% of the energy demand and about 36% of the CO2 emission at global level. Considering that almost 70% of the existing building stock will still be used in 2050, a long-term vision is needed to align with future challenges to avoid having significant increases in carbon emissions. The European policymakers have a long-recognized potential energy saving associated with the renovation of the existing building stocks, as demonstrated by the directives on the Energy performance of buildings (EPBD), introducing also the need to developed an integrated buildings design approach with environmental analysis. The purpose of this the…
A new fuzzy logic controller for trading on the stock market
2007
A common problem that financia l operators often meet in their own work is to make, at the right moment, the operational choices on the Stock Market. Once the Market to act on has been chosen, the financial operator has to decide when and how to operate on it, in order to achieve a profit . The problem that we are going to deal with is the planning of an automatic decisional system for the management of long positions on bull market. First, a trading system (TS) will be im plemented pointing its features out. Then a fuzzy logic implementation of the TS will be introduced (FTS). The fuzzy system will be optimized by the genetic algorithms. Finally, the two different implementations of the tr…
The beginning of the Neolithic in Southern Italy and Sicily
2018
Abstract The process of Neolithization of Southern Italy and Sicily covers about 500 years (6200–5700 cal BC) and involves two cultural horizons: Archaic Impressed Ware or “Impresse Arcaiche” and Advanced Impressed Ware or “Impresse Evolute”. In Southern Italy the Neolithic peopling from the East is characterized by a “package” of plenty domesticated plants and livestock; in Sicily the adoption of the new economical system is apparently more slow and with no evidences of ruptures between the Mesolithic groups and first farmers. In this paper we present the chronological and cultural framework of the sixth millennium BC within the area of investigation, with an up-to-date bibliography about …
Karlheinz Stockhausen, FREITAG aus LICHT (1991-94). In una versione da concerto per 6 solisti, musica elettronica e regia del suono
1996
L'articolo descrive per grandi linee il progetto di teatro musicale LICH ("Luce"), con particolare riferimento alla struttura/simbologie dell'opera FREITAG ("Venerdì").
Varèse-Stockhausen-Reich: percorsi e sviluppi del rapporto fra suono e rumore
1998
Il saggio assume il rapporto suono/rumore quale tratto cruciale della musica del Novecento, e analizza tale aspetto in relazione alle esperienze di Varèse, alle opere giovanili di Stockhausen ("Gesang der Juenglinge" e alle opere per/con nastro magnetico di Steve Reich.
Dual of the Class of HKr Integrable Functions
2019
We define for 1 <= r < infinity a norm for the class of functions which are Henstock-Kurzweil integrable in the L-r sense. We then establish that the dual in this norm is isometrically isomorphic to L-r' and is therefore a Banach space, and in the case r = 2, a Hilbert space. Finally, we give results pertaining to convergence and weak convergence in this space.