Search results for " CONSERVATION"
showing 10 items of 1644 documents
Istanze biotine in Sicilia tra storia, restauro e modernismo e il caso del restauro del castello di Mussomeli
2018
In Sicilia l’influenza di Camillo Boito nella cultura architettonica tra Ottocento e Novecento si delinea secondo l’inscindibile intreccio tra restauro, studi storici e progetto del nuovo, connubio vivo, d’altronde, nella figura stessa dello studioso. Oltre che alla notorietà del suo pensiero, l’influenza di Boito nella cultura siciliana si deve anche al suo coinvolgimento nell’ambito di alcune specifiche vicende siciliane. Infatti, per la nuova organizzazione centralizzata della tutela del Ministero della Pubblica Istruzione, alla fine dell’Ottocento, egli si recò più volte in Sicilia come membro di Commissioni ministeriali a dirimere varie questioni nate intorno al restauro di importanti …
Economic geography and growth: recent advances and new results
1997
Two fields of economic theory have developed recently in parallel: on the one hand, economic geography aims to explain the formation of a heterogeneous space, i.e.how the agglomeration of households and firms determines differentiated regions, urban structures or urban systems; on the other hand, theories of endogenous growth propose new views on growth mechanisms which invalidate the traditional convergence rule. Thesetheories are based on common foundations such as increasing returns, spatial externalities and monopolistic competition. We examine here in some detail how the spatial dimension is implicit in endogenous growth theories. We emphasize the whys and wherefores of the combination…
De von Thünen à Fujita : continuité ou rupture ?
1996
L'histoire de la pensée économique spatiale fait apparaître quatre grands paradigmes qui se rattachent respectivement aux travaux initiateurs de von Thünen, Weber, Christaller et Lösch et enfin Hotelling (Ponsard, 1983). En y ajoutant les apports d'autres auteurs, comme Lauhnardt et Greenhut (Norman, 1993), et en étudiant les complémentarités et les interactions entre ces paradigmes (Ponsard, 1983 ; Fujita, Ogawa et Thisse, 1988 ; Fujita et Thisse, 1986), on a pu souvent souligner les pertinences actuelles, théoriques et empiriques, de ces contributions historiques. Mais cespertinences dépassent également le champ strict de l'économie spatiale, puisque certaines théories de l'économie inter…
Urban economics and endogenous dynamics in regional growth
1995
Nous nous proposons, dans cet article, d ’étudier sous quelles conditions des mécanismes endogènes de croissance applicables aux régions peuvent être définis. L ’accent est mis sur l'organisation spatiale des activités économiques qui permet de produire les économies d ’agglomération nécessaires à la croissance. On étudie ensuite les impacts de cette organisation spatiale sur la capacité exportatrice des régions et sur la croissance économique régionale.
La ville abstraite : une analyse des représentations théoriques de la ville
1995
Par le terme générique de ville abstraite, nous désignons les représentations de la ville sur lesquelles s'appuie un discours théorique, économique, géographique ou social, positif ou normatif, ou qui sont l'objet d'un tel discours. Ces représentations sont des constructions mentales conscientes réalisées dans le but explicite de donner du sens à la ville, c'est-à-dire de n'en retenir que certains éléments jugés significatifs pour ce que l'on veut démontrer. Nous distinguons ce type de représentation de deux autres que nous ne traitons pas. La première est celle de la ville perçue. C'est une représentation mentale qui se construit dans l'esprit de l'individu qui se localise, vit dans la vil…
Italy
2012
Summary: 1. The constitutional protection of personal freedom. - 1.1. A little history: united Italy and the Albertine Statute. - 1.2. The current situation: the Constitution of 1948.- 1.1.1. Inviolability of personal freedom and guarantees of Habeas Corpus. - 1.1.2. Presumption of innocence and rule of treatment. - 2. Active enforcement: the system of personal precautionary measures. - 2.1. Non-custodial precautionary measures. - 2.2. Custodial precautionary measures. - 2.3. The operational core of the system. - 2.3.1. The requirement of proof: serious evidence of guilt. - 2.3.2. Precautionary needs. - 2.3.3. The selection criteria. – 3. Precautionary proceedings. - 3.1. Internal regulatio…
Valorizzazione e gestione delle informazioni
2017
Il volume indaga sulle dialettiche tra valorizzazione e conservazione materiale delle preesistenze, additando utili scenari di ricerca da percorrere congiuntamente, anche con l'ausilio della didattica, perchè le azioni di valorizzazione 'tangibili' non rechino nocumento alle azioni di tutela preordinate. Il volume illustra inoltre casi concreti di best practices (Tecnologie ICT, Data-base, Gis, ricostruzioni virtuali, website ecc..., ). I contributi presenti nel volume confermano la consapevolezza che questa nuova s da che ci perviene dall’esterno, possa divenire per noi, attori del restauro architettonico, un ulteriore spazio di ricerca, anche stimolante per una nuova visione del patrimoni…
Integration of high resolution spatial and spectral data acquisition systems to provide complementary datasets for cultural heritage applications
2010
International audience; Modern optical measuring systems are able to record objects with high spatial and spectral precision. The acquisition of spatial data is possible with resolutions of a few hundredths of a millimeter using active projection-based camera systems, while spectral data can be obtained using filter-based multispectral camera systems that can capture surface spectral reflectance with high spatial resolution. We present a methodology for combining data from these two discrete optical measuring systems by registering their individual measurements into a common geometrical frame. Furthermore, the potential for its application as a tool for the non-invasive monitoring of painti…
Long-term impacts of increased timber harvests on ecosystem services and biodiversity : A scenario study based on national forest inventory data
2020
The transition to a climate-neutral economy is expected to increase future timber demands and endanger the multifunctionality of forests. National scenario analyses are needed to determine long-term forest management impacts and support forest policy making in defining guidelines for the sustainable provision of forests’ ecosystem services and biodiversity (ESB). Using national forestry inventory data, the forest management model MASSIMO and a model to estimate harvesting costs, we simulated forest development in Switzerland under five politically relevant timber harvesting scenarios until 2106 (business as usual and four increased timber mobilisation scenarios). Model results were analysed…
Opposing health effects of hybridization for conservation
2021
The continuing decline of many natural plant and animal populations emphasizes the importance of conservation strategies. Hybridization as a management tool has proven successful in introducing gene flow to small, inbred populations, but can be also associated with health risks. For example, hybridization can change susceptibility to infection in either direction due to heterosis (hybrid vigor) and outbreeding depression, but such health effects have rarely been considered in the genetic management of populations. Here, we investigated the effects of experimental outcrossing between the critically endangered Saimaa landlocked salmon (Salmo salar m. sebago) and the genetically more diverse A…