Search results for "Modelli"
showing 10 items of 1866 documents
SoilPro: monitoraggio per la protezione del suolo
2011
Il progetto LIFE08 ENV/IT/00428 SOILPRO (http://www.soilpro.eu) si pone l’obiettivo di contribuire ad arrestare i principali fenomeni di degradazione del suolo, in linea con la Strategia Tematica Europea per la Protezione del Suolo, supportando le autorità locali nell’azione di identificazione e monitoraggio delle aree a rischio. Il monitoraggio dei processi di degradazione in atto e la valutazione delle diverse misure di protezione sarà effettuato attraverso lo sviluppo di un software (SMS – Soil Monitoring System), costituito da una piattaforma Web-GIS e sviluppato sulla base dei dati posseduti e delle conoscenze acquisite dai diversi partners. Il sistema verrà in un primo momento applica…
Breeding abundance of threatened raptors as estimated from occurrence data
2008
A model derived from the negative binomial distribution (NBD) has been proposed to solve the problem of predicting abundance of species from occurrence maps. The viability of NBD was explored for predicting the breeding abundance of five threatened species of raptor: Bonelli's Eagle Hieraaetus fasciatus, Golden Eagle Aquila chrysaetos, Peregrine Falco peregrinus, Lanner Falco biarmicus and Lesser Kestrel Falco naumanni. First, the accuracy of the NBD was tested in a reference area where the species abundance and occurrence were known through intensive field surveys. Next, an estimation of regional abundance derived from NBD was made for each species. These estimates were then compared to th…
Geospatial modelling and map analysis allowed measuring regression of the upper limit of Posidonia oceanica seagrass meadows under human pressure
2018
Abstract Marine coastal ecosystems are facing structural and functional changes due to the increasing human footprint worldwide, and the assessment of their long-term changes becomes particularly challenging. Measures of change can be done by comparing the observed ecosystem status to a purposely defined reference condition. In this paper, a geospatial modelling approach based on 2D mapping and morphodynamic data was used to predict the natural position of the upper limit (i.e., the landward continuous front) of Posidonia oceanica seagrass meadows settled on soft bottom. This predictive model, formerly developed at the regional spatial scale, was here applied for the first time at the Medit…
The impact of climate change on Mediterranean intertidal communities: losses in coastal ecosystem integrity and services
2014
As has been shown for other ecosystems, the ecological and socio-economic impacts of climate change on Mediterranean intertidal habitats are highly variable in space and time. We conducted field and laboratory measurements of cellular, ecophysiological and behavioural responses of selected intertidal invertebrates (mussels, gastropods and sponges) and completed a literature review to determine what is known of socioeconomic consequences of these biological changes. Results suggest significant gaps in our knowledge that may impede a complete understanding of likely impacts (physical, biological, and socioeconomic) and that sufficient data for such an analysis is available only for mussels. A…
The estimation of DEB parameters for the invasive intertidal bivalve, Brachidontes pharaonis
2011
The human impact on ecology of marine organisms: the EEB experience
2010
Milano Parco Sud: L'Energia della Memoria
2007
Un'idea semplice e rivoluzionaria: riuscire a trasformare, in armonia con la tradizione, il “parco agricolo sud” di Milano. La proposta si sviluppa su più piani: restauro delle abitazioni e cascine del parco, lo fruttamento delle energie eco-compatibili (biomassa, energia solare e energia idraulica), e promozione del parco come meta turistica. Un lavoro simile è già in atto in diverse parti della regione Lombardia. L’area del parco del Ticino dopo due anni di lavoro è quasi tutta eco compatibile. Nella provincia di Cremona alcune aziende agricole hanno già iniziato a sviluppare e a monetizzare la biomassa.
Modelli meccanicistici biofisici e bioenergetici DEB per la predizione della nicchia ecologica dei sospensivori bentonici in Mediterraneo in un conte…
2014
I modelli meccanicistici basati sull’analisi dei tratti funzionali comportamentali (e.g. preferenze alimentari), fisiologici (e.g. vulnerabilità alla temperatura) e morfologici (e.g. forma e colore) che concorrono nell’ottimizzazione dell’incoming energetico del singolo organismo sono una soluzione pratica per fornire previsioni accurate sull’abbondanza degli organismi di una specie in un mondo in continuo cambiamento (Araujo & Rahbek 2006). Tale approccio è definito come ecomeccanica e ha rappresentato la base sulla quale costruire questo progetto di tesi. L’integrazione dei più recenti modelli biofisici e bioenergetici ha permesso di evidenziare tanto le strategie di gestione ed allocazio…
Melanoma cells release extracellular vesicles which contain RNA-binding proteins able to bind the mRNA encoding histone H1°
2015
Extracellular vesicles (EVs) are produced by most prokaryotic and eukaryotic cells; tumour cells, however, release much higher amounts of EVs, which contain cancer-specific proteins and RNAs. Molecules carried by EVs are captured by surrounding cells, which then undergo profound phenotypic modifications. G26/24 oligodendroglioma cells release, for example, EVs containing FasL and TRAIL, which induce apoptosis in rat cortical neurons and astrocytes in culture. By metabolic labelling of cells, EV-mediated horizontal transfer of radioactive proteins was clearly demonstrated. Among the proteins present in EVs produced by oligodendroglioma cells, extracellular matrix remodelling proteases, and t…
RNA as a carrier of epigenetic information
2017
Both prokaryotic and eukaryotic cells release into the extracellular matrix membrane-bound structures of different sizes, origin and composition, collectively called extracellular vesicles (EVs) [1]. Tumor cells, in particular, use EVs to transfer both nucleic acids and proteins to the surrounding normal cells, thus inducing in them transformed behaviours or killing them. G26/24 oligodendroglioma cells, for example, transfer by EVs pro-apoptotic proteins, such as TRAIL and Fas-Ligand [2], extracellular matrix remodelling proteases (such as ADAMTS) [3], and even the H1.0 histone protein [4]. Another tumour cell line, with a different tissue origin (A375 melanoma cells) releases into the medi…