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On the metabolites produced by Colletotrichum gloeosporioides a fungus proposed for the Ambrosia artemisiifolia biocontrol; spectroscopic data and absolute configuration assignment of colletochlorin A
No full textAmbrosia artemisiifolia L. is responsible for serious allergies induced on humans. Different approaches for its control were proposed during the COST Action FA1203 “Sustainable management of Ambrosia artemisiifolia in Europe” (SMARTER). Fungal secondary metabolites often show potential herbicidal activity. Three phytotoxins were purified from the fungal culture filtrates of Colletotrichum gloeosporioides, isolated from infected leaves of A. artemisiifolia. They were identified by spectroscopic and chemical methods as colletochlorin A, orcinol and tyrosol (1, 2 and 3). The absolute configuration 6’R to colletochlorin A was assigned for the first time applying the advanced Mosher’s method. When assayed by leaf-puncture on A. artemisiifolia only 1 caused the appearance of large necrosis. The same symptoms were also induced by 1 on ambrosia plantlets associated with plant wilting. On Lemna minor, colletochlorin A caused a clear fronds browning, with a total reduction in chlorophyll content
Biological responses of white sea bream (Diplodus sargus, Linnaeus 1758) and sardine (Sardine pilchardus, Walbaum 1792) exposed to heavy metal contaminated water
No full textThe aim of the present work was to assess, by rapid approach, the detoxification capacity and the genotoxicity caused by exposure of
some marine fish to polluted waters. The fish species selected for the study: White sea bream (Diplodus sargus, Linnaeus 1758) and
sardine (Sardine pilchardus, Walbaum 1792) were collected from different sites of Alexandria, El-Max bay and Bahary, in Egypt. Results
of heavy metals analysis in sediment were: Al>Fe>Cr>Pb>Hg>Cd. Concerning detoxification analysis, fish collected from El-Max bay
encounter the highest liver enzyme activity of Glutathione S-Transferase. Also, genotoxicity was evaluated in liver, gills and muscle of fishes
collected and the results indicated that fish collected from El-Max bay has the highest levels of comets (DNA damage) when compared
to the other sites selected as reference. It can be concluded from our results that the different tissues examined have alteration of level
of detossification and comets as result of different degree of oxidative pollution insult. These biological responses may be considered for
rapid extimation of food oxidative damage as well as for environmental quality
Migrazioni ed Aree Interne
No full textLe aree interne del nostro Paese stanno subendo diaspore silenti di giovani generazioni che si arrendono all’impossibilità di una costruzione di futuro nelle
piccole comunità. Spopolamenti e abbandoni disegnano così una nuova geografia, grazie ai flussi destinati inevitabilmente ad incontrarsi. Come accade
spesso letterati, poeti e sognatori dallo sguardo visionario hanno anticipato gli accadimenti del reale: Franco Arminio, poeta paesologo, anni fa lanciava quella
che poteva apparire come una provocazione: «Ripopoliamo le aree spopolate dell’Appennino con immigrati e rifugiati” ma che è invece risultata una visione
di pura avanguardia.» Il saggio, nel descrivere la realtà degli SPRAR e di come essi siano connessi alla Stategia Nazionale per le Aree Interne, individua delle metodologie per il progetto di architettura all'interno dei processi di riattivazione dei piccoli paesi
Exploratory GIS Analysis via Spatially Weighted Regression Trees
No full textThe challenging goal of the Moving Towards Adaptive Governance in Complexity: Informing Nexus Security (MAGIC) project is to quantitatively enlighten the nexus among energy, food, water and land use toward informed governance inside EU aimed at long term environmental feasibility, economic viability and social desirability. Within the framework of recursive partitioning algorithms by tree-based methods, this paper provides an application on a real Geographic Information System (GIS) dataset regarding the irrigation communities in Almeria, Spain. We propose to build an explorative regression tree – spatially weighted – aiming at classifying the specific consumption of water (per hectare) of the farming communities based on either water management areas and different mix of sources
for irrigation water (surface, groundwater, waste water, desalination)
Placental Vascularization and Apoptosis in Rats Orally Exposed to Low Doses of Bisphenol A
No full textGeographies of Global History
No full textThe paper, focusing on the pivotal spatial rethinking in global history, briefly reconstructs some implications of the assumption of an original spatial perspective in the global historical research from its beginnings to nowadays. The application of a constructivist perspective leads, on the one hand, to the choice of units of analysis basically alien to any form of centrism and to the hierarchies of meta-geographies; on the other hand, to the deconstruction of the traditional nation-state frame, historicized and reconceptualised in new ways in a global perspective. Moreover, after a rich debate developed in the years 2006-2015 about issues of space and scale, new life has come to global history through a more warned empirical research, devoting more attention to contexts, social actors and primary sources
Tullio De Mauro e la Società di Linguistica Italiana: 50 anni di storia della linguistica. Un percorso comune
No full textAtti della Tavola rotonda - LI Congresso internazionale di studi della Società di Linguistica Italiana (SLI) - Napoli, 28 settembre 201
New O-Glycosidation Methods for the Synthesis of Unnatural Oligosaccharides” XLII
No full textan efficient de novo route enabling all eight L-hexoses synthesis has been developed by Guaragna et al. [3,4] based on the synthesis of the key intermediates 3 and 4 starting from the homologating agent 1.
Based on capability of these sulfur-containing moieties to activate neighboring acetal functions, [5] as proved by the equilibrium existing between 3 and 4 (FIGURE 2), [6] their unprecedented activation, respectively at C1 and C4 positions, has been herein exploited to make them glycosyl donors into O-glycosidation reactions for the synthesis of di- and oligosaccharides structures containing enantiopure L-hexoses under extremely mild acidic conditions and without the need to install leaving group at the anomeric positions
Liberi professionisti e mafie. Per un modello sistematico di contrasto.
No full textIl Capitolo descrive criticamente le differenti declinazioni dell'antimafia spiegando le ragioni per cui ci si sofferma, in considerazione delle competenze giuridiche, solo sul ruolo del legislatore, della magistratura, della Commissione parlamentare antimafia, degli ordini e collegi professionali, delle università. Viene quindi approfondito il sistema attraverso l'analisi dell'esercizio delle funzioni dei diversi organismi interessati: normativa, giurisprudenza, potere normativo e disciplinare degli ordini professionali, potenziale delle università. Viene approfondita in particolare la normativa, fatte emergere le criticità e formulate proposte che hanno trovato sede in seno al legislatore e agli uffici giudiziari
