170,048 research outputs found
L’applicazione di Metodi perequativi in area urbana. L’ausilio del GIS a supporto delle Decisioni
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Assessing the Economic Impacts of Climate Change. An Updated CGE Point of View
Get PDFThe present research describes a climate change integrated impact assessment exercise, whose economic evaluation is based on a CGE approach and modeling effort. Input to the CGE model comes from a wide although still partial set of up-to-date bottom-up impact studies. Estimates indicate that a temperature increase of 1.92°C compared to pre-industrial levels in 2050 could lead to global GDP losses of approximately 0.5% compared to a hypothetical scenario where no climate change is assumed to occur. Northern Europe is expected to benefit from the evaluated temperature increase (+0.18%), while Southern and Eastern Europe are expected to suffer from the climate change scenario under analysis (-0.15% and -0.21% respectively). Most vulnerable countries are the less developed regions, such as South Asia, South-East Asia, North Africa and Sub-Saharan Africa. In these regions the most exposed sector is agriculture, and the impact on crop productivity is by far the most important source of damages. It is worth noting that the general equilibrium estimates tend to be lower, in absolute terms, than the bottom-up, partial equilibrium estimates. The difference is to be attributed to the effect of market-driven adaptation. This partly reduces the direct impacts of temperature increases, leading to lower damage estimates. Nonetheless these remain positive and substantive in some regions. Accordingly, market-driven adaptation cannot be the solution to the climate change problem.Computable General Equilibrium Modeling, Impact Assessment, Climate Change
Beni pubblici e produzione di esternalità positive: le tendenze innovative nelle politiche agricole europee
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Unitarity constraints on ALP interactions
Get PDFWe derive partial-wave unitarity constraints on gauge-invariant interactions of an axionlike particle up to dimension-6 from all allowed 2 → 2 scattering processes in the limit of large center-of-mass energy.
We find that the strongest bounds stem from scattering amplitudes with one external axionlike particle and only apply to the coupling to a pair of SU(2)L gauge bosons. Couplings to U(1)Y and SU(3)C gauge
bosons and to fermions are more loosely constrained
Oltre Eboli. Questioni di ordine rurale Beyond Eboli. Issues of rural order
No full textQuesta sezione propone riflessioni attorno a diverse condizioni e significati attribuiti al rurale e di
come questi producano effetti e si riflettano nella configurazione e nel pensiero spaziale, informando diverse idee di ruralità. Obiettivo è cogliere la ricchezza e l’ampiezza della ricerca sul tema e, possibilmente, anticipare alcuni dei temi e degli approcci che saranno
al centro dell’indagine e del progetto rurale nei prossimi anni. L’ipotesi sostenuta è che, a partire dal 2008, il susseguirsi di crisi ecologiche, economiche e, ultimamente, sanitarie, abbia innescato profondi, e al tempo stesso opachi, processi di ridefinizione degli spazi e delle società
rurali occidentali, caratterizzati da nuovi fenomeni di frantumazione sociale, da conflitti, da prese di distanza e da nuove interazioni tra gruppi sociali, ecologie e forme
di produzione spaziale.
Beyond Eboli. Issues of rural order
This section proposes reflections around different conditions and meanings attributed to rural areas and how these produce effects and are reflected in spatial configuration and thinking, informing different ideas of rurality. The aim is to capture the richness and breadth
of research on the topic and, possibly, anticipate some of the themes and approaches that will be at the centre of rural investigation and design in the coming years.
The hypothesis put forward is that, since 2008, the succession of ecological, economic and, lately health, has triggered profound, and at the same time opaque, processes of redefinition of western rural spaces and societies, marked by new phenomena of social shattering,
conflicts, distancing and new interactions between social groups, ecologies and forms of spatial production
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