18 research outputs found

    Le pacte agriurbain de la vallée ombrienne et les districts agricoles et culturels de Milan. Deux modèles de gestion des espaces agricoles périurbains

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    In peri-urban areas, the level of integration with the urban areas, the spatial organisation of the city and surroundings and the functions of agricultural system determine specific features of agricultural landscapes . The management of these areas is becoming increasingly important in order to guide the evolution orienteering the development in a perspective of spatial and functional integration. In Europe, some experiences of territorial planning as agricultural parks, agriurbain projects, agricultural districts, agriurbain pacts, pacts between city and countryside, are been developing. The success of these experiences, which often are expression of a new meaning of "rurality" are based on a strong participation and cohesion between the stakeholders thanks to practices of co-construction of space. The purpose of this paper is to present two experiments of co-construction of agriurbain territories : the agricultural and cultural district of Milan (Lombardia) and the agriurbain pact of Umbrian Valley (Umbria), analyzing the construction of the model, the intervention scales, the socio-economic actors involved and considering the role of policies implemented to manage these areas

    Time processing in children with Tourette's syndrome

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    Background: Tourette syndrome (TS) is characterized by dysfunctional connectivity between prefrontal cortex and sub-cortical structures, and altered meso-cortical and/or meso-striatal dopamine release. Since time processing is also regulated by fronto-striatal circuits and modulated by dopaminergic transmission, we hypothesized that time processing is abnormal in TS. Methods: We compared time processing abilities between nine children with TS-only (i.e. without major psychiatric comorbidities) and 10 age-matched healthy children, employing a time reproduction task in which subjects actively reproduce different temporal intervals, and a time comparison task in which subjects judge whether a test interval is longer or shorter than a reference interval. IQ, sustained and divided attention, and working memory were assessed in both groups using the Leiter International Performance Scale-Revised, and the Digit Span sub-test of the WISC-R. Results: Children with TS-only reproduced in an overestimated fashion over-second, but not sub-second, time intervals. The precision of over-second intervals reproduction correlated with tic severity, in that the lower the tic severity, the closer the reproduction of over-second time intervals to their real duration. Time reproduction performance did not significantly correlate with IQ, attention and working memory measures in both groups. No differences between groups were documented in the time comparison task. Conclusions: The improvement of time processing in children with TS-only seems specific for the over-second range of intervals, consistent with an enhancement in the 'cognitively controlled' timing system, which mainly processes longer duration intervals, and depends upon dysfunctional connectivity between the basal ganglia and the dorso-lateral prefrontal cortex. The absence of between-group differences on time comparison, moreover, suggests that TS patients manifest a selective improvement of 'motor' timing abilities, rather than of perceptual time abilities. Our data also support an enhancement of cognitive control processes in TS children, probably facilitated by effortful tic suppression
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