Search results for " sic"
showing 10 items of 3587 documents
Effect of number of seed parents on the genetic diversity of artificially regenerated stands of holm oak
2007
Artificial populations of holm oak (Quercus ilex L. s.l.) and their natural seed origin populations selected from Andalusia (Southern Spain) and Sicily (Southern Italy) were analysed with six nuclear microsatellite loci to explore the effect of seed collection methods. Low effective allele numbers (3.07-6.67) and extremely low effective populations sizes (35.4-102.9) were detected in both reforestation stands, probably due to an inappropriate forester seed collection strategy limited to a few mother trees. Analysis of simulated progenies showed that optimal sampling size to obtain seed collections genetically similar to the origin populations should range from 20 to 50 individuals, but coul…
La lingua “inventata” di Andrea Camilleri: il peso della parola dialettale
2019
la singolare lingua delle opere di Andrea Camillerii spinge a considerare – semmai ce ne fosse bisogno – che la scrittura letteraria è fatta di parole e qualche appunto sulle parole può certo aiutare a cogliere i meccanismi del plurilinguismo letterario e, nel caso di Camilleri, le ragioni di un grandissimo successo editoriale e di una straordinaria popolarità. Le opere di Andrea Camilleri mostrano una certa (ma non spropositata) quantità di lessico “prettamente dialettale” (pari a circa il 20% delle parole che non coincidono con quelle dell’italiano letterario). Ma mentre una parte di questo lessico autoctono (costituito da voci di bassa frequenza all'interno di ciascuna opera e nell'inter…
L'influenza del trattato di Andrea Pozzo nell'architettura siciliana del XVIII secolo
2012
Il saggio approfondisce le ricadute operative nell'architettura siciliana del Settecento del trattato dell'architetto gesuita Andrea Pozzo. In ambito isolano questo celebre testo, edito in due volumi, fu di certo studiato e osservato con attenzione dagli architetti locali, registrando una progressiva aderenza alle tavole del padre gesuita. A giudicare dalle opere realizzate, sembra che in ambito architettonico, almeno comunque fino al primo decennio del Settecento,il trattato esercitò un'influenza fortemente filtrata, tanto da risultare difficile l'individuazione di inequivocabili dipendenze dei progetti siciliani nei riguardi delle incisioni del maestro gesuita.Dagli anni venti agli anni c…
Fauna di Sicilia. Anfibi
2017
Anfore in Sicilia VIII-XII sec. d.C.
2012
Exploiting historical rainfall and landslide data in a spatial database for the derivation of critical rainfall thresholds
2017
Critical rainfall thresholds for landslides are powerful tools for preventing landslide hazard. The thresholds are commonly estimated empirically starting from rainfall events that triggered landslides in the past. The creation of the appropriate rainfall–landslide database is one of the main efforts in this approach. In fact, an accurate agreement between the landslide and rainfall information, in terms of location and timing, is essential in order to correctly estimate the rainfall–landslide relationships. A further issue is taking into account the average moisture conditions prior the triggering event, which reasonably may be crucial in determining the sufficient amount of precipitation.…
Studio preliminare su composizione e provenienza di ocra dalla sepoltura epigra-vettiana di Grotta d’Oriente A, Favignana (Egadi, Sicilia)
2022
La Grotta d’Oriente, sull’isola di Favignana (Egadi, Sicilia) ha restituito una serie di sepolture e resti umani ascrivibili all’Epigravettiano finale e al Mesolitico. La Sepoltura cosiddetta Oriente A, epigravettiana, è caratterizzata da un corredo fittile consistente in conchiglie e in un ciottolo con tracce di ocra rossa. Da un punto di vista della ricostruzione ar-cheologica e della definizione degli scenari di ecologia preistorica è molto importante la caratterizzazione chimica e la deter-minazione della provenienza di questo pigmento che, com’è noto, caratterizza molti scenari paleolitici. La ricerca presenta i dati preliminari dell’analisi SEM/EDS/EDAX dei pigmenti ocracei prelevati …
REVISITING ANTHROPOZOONOSES IN THE MEDITERRANEAN BASIN. A SINGLE-CENTRE PERSPECTIVE. A SOUTHERN ITALIAN EXPERIENCE
2017
Zoonoses, often better defined with the term anthropozoonoses, are diseases that can be transmitted to humans either by direct contact with animals or through arthropod vector intervention. Microbial interaction between humans and animals constitutes an important public health challenge, particularly in the Mediterranean basin. The main reasons this challenge is still relevant today include the phenomenon of migration, of both humans and animals, and climate change, which tend to alter the geographical distribution of zoonosis or the zoonotic agent, as well as the distribution range of potential vectors. The Mediterranean area seems to be affected by plentiful and widely distributed zoonose…
Antioxidant activities of sicilian prickly pear (Opuntia ficus indica) fruit extracts and reducing properties of its betalains: betanin and indicaxan…
2002
Sicilian cultivars of prickly pear (Opuntia ficus indica) produce yellow, red, and white fruits, due to the combination of two betalain pigments, the purple-red betanin and the yellow-orange indicaxanthin. The betalain distribution in the three cultivars and the antioxidant activities of methanolic extracts from edible pulp were investigated. In addition, the reducing capacity of purified betanin and indicaxanthin was measured. According to a spectrophotometric analysis, the yellow cultivar exhibited the highest amount of betalains, followed by the red and white ones. Indicaxanthin accounted for about 99% of betalains in the white fruit, while the ratio of betanin to indicaxanthin varied fr…
Kundmannia sicula (L.) DC: a rich source of germacrene D
2017
AbstractObjective: Kundmannia sicula is an herbaceous plant belonging to the family Apiaceae and is distributed in the Mediterranean coastal areas where it occurs in arid places. In this work, we have analysed the essential oil distilled from the aerial parts of K. sicula from Sicily (Italy) and its biological activity. Methods: GC-MS was used to analyze the chemical composition, whereas its antioxidant capacity and cytotoxicity on three human tumour cells (A375, MDA MB-231 and HCT 116) were evaluated by DPPH, ABTS, FRAP and MTT methods, respectively. Result: The essential oil resulted very rich of the sesquiterpene hydrocarbon germacrene D (81.2%). Moreover, the K. sicula oil displayed rel…