Search results for "banc"
showing 10 items of 782 documents
New records of the genus Orobanche L. (Orobanchaceae) to the Tunisian flora with lectotypification of the name O. rapum-genistae Thuill.
2023
Based on several field surveys and on the study of original material, we have identified three new species of Orobanche L. s.s. (Orobanchaceae) new to the flora of Tunisia. Orobanche alba Willd., O. calendulae Pomel, and O. gracilis Sm. are reported as new for the country, and the occurrence of O. rapum-genistae Thuill. is confirmed. The lectotypification of O. rapum-genistae is here proposed with a specimen housed in Genève (G). The geographical distribution of the four taxa in Tunisia is given, and details of habitats and hosts are provided. Altogether, the genus Orobanche in Tunisia now includes 18 species; a dichotomous key is proposed to facilitate the identification of these taxa.
The status of Orobanche crenata in Sicily and preliminary observations on Orobanche crenata susceptibility in Vicia faba
2013
Since more than 10 years we are recording Orobanche crenata populations variations and testing traditional remedies to assess their applicability in a low impact agriculture that may be applied also in developing countries. Starting from the observation that often in C Sicily dense fields of Broadbean show lower Broomrape infestation, we did some preliminary observations on Orobanche crenata susceptibility in Vicia faba var. faba and Vicia faba var. equina with different agricultural techniques. First results show a higher resistance of the latter sowed at higher densities.
Impacts of marine aquaculture at large spatial scales: evidences from n and p catchment loading and phytoplankton biomass
2011
International audience; While several studies point at off-shore aquaculture as a possible source of impacts on the local marine environment, very few have analysed its effects at large scales such as at the bay, gulf or basin levels. Similar analyses are hampered by the multiple sources of disturbance that may concomitantly affect a given area. The present paper addresses these issues taking the Gulf of Castellammare (Southern Tyrrhenian Sea) as an example. Nitrogen (N) and phosphorous (P) loads were calculated for the period 1970-2007, and compared to chlorophyll-a concentration as measured inside and outside the Gulf over the same period. Results indicate that N and P catchment loading h…
MULTIPLE CLIMATE-DRIVEN CASCADING ECOSYSTEM EFFECTS AFTER THE LOSS OF A FOUNDATION SPECIES
2021
Abstract Climate change is evolving so fast that the related adverse effects on the environment are becoming noticeable. Thus, there is an urgent need to explore and understand the effects generated by multiple extreme climatic events (MECEs) on marine ecosystem functioning and the services provided. Accordingly, we combined long-term in-situ empirical observations in the Mediterranean Sea with a mesocosm manipulation to investigate the concurrence of increasing temperature and hypoxia events. By focussing on a foundation mussel species, we were able to detect several cascade events triggered by a mass mortality event caused by stressful temperature and oxygen conditions, and resulting in a…
PESCA SOSTENIBILE E CONSERVAZIONE DELLA NATURA IN SICILIA
2014
La ricerca di un linguaggio nell'architettura bancaria
2014
Fin dall'origine e per molto tempo l'immagine dell'architettura bancaria si identifica con il palazzo rinascimentale. Nell'Ottocento l'idea di rassicurazione, solidità, affidalibilità evocata dal palazzo neo-cinquecentesco si ritrova in quasi tutti gli edifici realizzati per le banche in Europa. L'architettura dell'Ottocento rielabora nuovi temi conseguentemente alle moderne forme di organizzazione sociale. Sorgono, infatti, edifici con funzioni e caratteristiche assolutamente originali che servono ai bisogni di una società più varia, più articolata, più attiva e dinamica. L'architettura delle banche adotta modelli formali, come la netta distinzione tra la parte pubblica e quella destinata …
OPTIMAL DAMPING CONSTANT OF THE QUARTER CAR SHOCK ABSORBER
2013
The paper aim is the investigation of optimal damping constant of a quarter car shock absorber that is performed in the frequency domain. The optimal damping constant refers to the value that minimizes the acceleration of all connected bodies characterizing a two degree of freedom system sketching a quarter car. The connected bodies are sprung and unsprung mass respectively for quarter of chassis and tire, the last one maintain the contact with the ground and it is connected with the sprung mass through a shock absorber characterized by spring and fluid damper. Optimal damping constant was determined by imposing analytical conditions on the expression of acceleration of two masses. Afterwar…
Dealing with uncertainty in consensus protocol
2009
Recent results on Consensus protocols for networks are presented. The basic tools and the main contribution available in the literature are considered, together with some of the related challenging aspects: estimation in networks and how to deal with disturbances is considered. Motivated by applications to sensor, peer-to-peer, and ad hoc networks, many papers have considered the problem of estimation in a consensus fashion. Here, the Unknown But Bounded (UBB) noise affecting the network is addressed in details. Because of the presence of UBB disturbances convergence to equilibria with all equal components is, in general, not possible. The solution of the $\epsilon$-consensus problem, where…
Il conto corrente bancario
2016
Quello attuale è senza alcun dubbio il tempo dei contratti bancari. Negli ultimi anni alle tradizionali figure regolate dal codice civile se ne sono aggiunte di nuove, quali, su tutti: il prestito vitalizio ipotecario, il microcredito, il contratto di locazione finanziaria per l'acquisto di beni immobili da adibire ad abitazione principale (ed. leasing abitativo). A ciò si aggiunga che, sotto lo stimolo del legislatore europeo, tipi contrattuali tradizionali hanno ricevuto una rinnovata e assai articolata disciplina. Il caso più emblematico è costituito, ovviamente, dal mutuo, modificato dalla direttiva 2014/17/UE (ed. mortgage credit directive), di recente attuazione nell'ordinamento itali…