Search results for "rural"

The General Routing Problem polyhedron: Facets from the RPP and GTSP polyhedra

1998

[EN] In this paper we study the polyhedron associated with the General Routing Problem (GRP). This problem, first introduced by Orloff in 1974, is a generalization of both the Rural Postman Problem (RPP) and the Graphical Traveling Salesman Problem (GTSP) and, thus, is NP -hard. We describe a formulation of the problem such that from every non-trivial facet-inducing inequality for the RPP and GTSP polyhedra, we obtain facet-inducing inequalities for the GRP polyhedron, We describe a new family of facet-inducing inequalities for the GRP, the honeycomb constraints, which seem to be very useful for solving GRP and RPP instances. Finally, new classes of facets obtained by composition of facet-i…

Land consolidation policies in sicily and their effects on its farmland

2014

The paper deals with the legislative interventions in the field of land consolidation and their effects in improving the Sicilian land property structure. After a preliminary analysis of the legislative framework at national and regional level, a study on the structural evolution of the farming system in Italy and Sicily during the 1961-2010 period was carried out. In order to appreciate the actual impact and the relative efficacy of such interventions, data concerning the actions for land reorganization provided for by the Measure 4.11 contained in the 2000-2006 ROP for Sicily were analysed. On the basis of the data provided by the Regional Board for Agricultural and Food Resources, it has…

Choice between alternative investments in agriculture: The role of organic farming to avoid the abandonment of rural areas

2015

Abstract Sicily has a long tradition in citrus fruit cultivation that, with vineyard and olive tree, represents the main Mediterranean tree crops. Since many Sicilian farmers in recent years have decided to abandon conventional lemon orchards, in this paper we have evaluated the financial sustainability of organic lemon production by comparing it with the conventional one. Financial analysis has been carried out in a case study on the northwestern coast of Sicily, considering a 50-year economic life of an orchard. The results, per hectare of area, showed a clear advantage of organic lemon orchard. This was due to fewer labor requirements and to greater market appreciation for organic produc…

Human fascioliasis in Argentina: retrospective overview, critical analysis and baseline for future research

2010

Abstract In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7%) from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases), Catamarca (73), San Luis (29) and Mendoza (28), the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey,…

Assessment of Italian energy policy through the study of a photovoltaic investment on greenhouse

2013

The production of energy from renewable sources is a form of energy production that has less impact on the environment than the traditional one. For the farmer this new form of production represents an opportunity, especially for the economic benefits that can produce, both in terms of the incentives provided by the public operator and for higher revenues, deriving from the energy sale and/or the saving generated by self-consumed energy, that help to integrate the farmer’s income. In this paper, we analyzed a case study of a farm that has realized a grid-connected photovoltaic (PV) system on greenhouse. In particular, firstly the farm profitability and subsequently was estimated in order to…

Schistosomiasis and water-related practices in school girls in rural KwaZulu-Natal, South Africa

2010

There is increasing evidence of an association between female genital Schistosoma haematobium infection and HIV. In KwaZulu-Natal, we aimed to explore girls' water contact practice and to determine...

Adesso anche la Sicilia strizza l'occhio ai GAS

2013

Primo Convegno Nazionale della Società dei territorialisti e delle territorialiste: tra approccio multidisciplinare, ritorno alla terra, valore umano…

2014

Prendendo spunto dal Primo Convegno Nazionale della Società dei Territorialisti e delle Territorialiste, che ha avuto luogo a Milano nei giorni del 17 e 18 maggio 2013, si riflette e si ripercorre la via che ha portato la pianificazione territoriale da un approccio al territorio per parti separate a quello di una lettura e progettazione di tipo sistemico ed organico che mira al superamento della precedente settorialità: l’approccio territorialista. La visione e il metodo territorialista implementa la multidisciplinarietà propria della pianificazione territoriale coinvolgendo l’identità dei luoghi, la partecipazione degli abitanti, la produzione sociale e condivisa di paesaggi, la proposta d…

DETERMINING FACTORS AFFECTING THE CHOICE OF SUSTAINABLE FISH PRODUCTS: AN EMPIRICAL INVESTIGATION IN THE ITALIAN AND SPANISH MARKET

2020

In recent decades, the fish stocks have been increasingly depleted, due mainly to the overfishing and illegal fishing. The perception of excessive fishing capacity led in the early 2000s to a review of the Common Fisheries Policy and the approval of regulations aimed at recovering depleted fish stocks and achieving greater sustainability in the sector. At the same time, the environmental awareness of consumers has grown, resulting in a greater attention towards sustainable products. Despite the new trend in consumption, few scholars have so far focused on consumer habits of sustainable fish products (Kirby and Ward, 2014; Asche et al., 2015; Asche and Bronnmann, 2017). To fill this gap, the…

Rural futures in developed economies: The case of Finland

2015

Abstract This study presents four possible images of rural futures in Finland: decentralized bio-economy, colonial countryside, museum countryside and rural business islets. They are distilled through literature reviews, futures workshops and futures tables. Alternative specifications of structures, contents and agencies result in highly divergent states of key dimensions and, consequently, divergent rural futures. This diversity challenges the conventional public wisdom or intellectual monoculture that considers decay as the only future for rural areas. Key challenges in crafting plausible but divergent futures images are finding an appropriate level of abstraction or “flight altitude”, es…