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The article explores the communist visual culture expressed on Twitter and Instagram on the occasion of the Italian Communist Party centenary. The aim is to bring out characters, meanings and interpretative problems around individual and collective processes of memorialization, as they manifest themselves in peculiar communicative contexts. Here, the communist visual culture is considered, in line with recent studies, as an essential part of everyday culture and lived experience, and as a symbolic signifier that expresses particular "memories of the future". L'articolo esplora la cultura visuale comunista espressa in occasione del centenario della nascita del partito comunista italiano su Twitter e Instagram. L���obiettivo �� avviare una riflessione su caratteri, significati e problemi interpretativi intorno ai processi di memorializzazione, individuali e collettivi, per come si manifestano in contesti comunicativi peculiari. La cultura visuale comunista viene qui considerata, in linea con recenti studi, come parte essenziale della cultura quotidiana e dell���esperienza vissuta e come significante o collante simbolico che esprime particolari ���memorie del futuro���., ECHO, N. 3 (2021): Lo statuto dell���immagine nel XXI secolo: schermi, rappresentazioni, sparizioni

PASTURES OF THE VETTE DI FELTRE. This study deals with the floristic composition of the grasslands in the Vette di Feltre (SW-Dolomites, Prov. Belluno, Italy) and with the potential of this territory for grazing. The vegetation types of economic interest above timberline are: Seslerio-Caricetum sempervirentis, Nardetum and Rumicetum alpini. These have heen mapped and the area covered by each association has been calculated. The yearly phytomass production was estimated with field measurements. On the basis of the floristic composition it is possible to calculate the fodder production in the area and consequently the optimal grazing pressure. Intensive grazing in the last centuries produced huge changes in the vegetation of the area.

Carta allegata al volume 3 di Studia Geobotanica (1983)

Ischemic stroke is the leading cause of disability, but effective therapies are currently widely lacking. Recovery from stroke is very much dependent on the possibility to develop treatments able to both halt the neurodegenerative process as well as to foster adaptive tissue plasticity. Here we show that ischemic mice treated with neural precursor cell (NPC) transplantation had on neurophysiological analysis, early after treatment, reduced presynaptic release of glutamate within the ipsilesional corticospinal tract (CST), and an enhanced NMDA-mediated excitatory transmission in the contralesional CST. Concurrently, NPC-treated mice displayed a reduced CST degeneration, increased axonal rewiring, and augmented dendritic arborization, resulting in long-term functional amelioration persisting up to 60 d after ischemia. The enhanced functional and structural plasticity relied on the capacity of transplanted NPCs to localize in the peri-ischemic and ischemic area, to promote the upregulation of the glial glutamate transporter 1 (GLT-1) on astrocytes and to reduce peri-ischemic extracellular glutamate. The upregulation of GLT-1 induced by transplanted NPCs was found to rely on the secretion of VEGF by NPCs. Blocking VEGF during the first week after stroke reduced GLT-1 upregulation as well as long-term behavioral recovery in NPC-treated mice. Our results show that NPC transplantation, by modulating the excitatory–inhibitory balance and stroke microenvironment, is a promising therapy to ameliorate disability, to promote tissue recovery and plasticity processes after stroke.SIGNIFICANCE STATEMENTTissue damage and loss of function occurring after stroke can be constrained by fostering plasticity processes of the brain. Over the past years, stem cell transplantation for repair of the CNS has received increasing interest, although underlying mechanism remain elusive. We here show that neural stem/precursor cell transplantation after ischemic stroke is able to foster axonal rewiring and dendritic plasticity and to induce long-term functional recovery. The observed therapeutic effect of neural precursor cells seems to underlie their capacity to upregulate the glial glutamate transporter on astrocytes through the vascular endothelial growth factor inducing favorable changes in the electrical and molecular stroke microenvironment. Cell-based approaches able to influence plasticity seem particularly suited to favor poststroke recovery.