Search results for "SAPR"
showing 10 items of 142 documents
Il rilievo del sito archeologico di Eraclea Minoa: valutazioni metriche sull’impiego di un Sistema Aeromobile a Pilotaggio Remoto (SAPR)
2017
Il lavoro condotto ha affrontato le problematiche connesse con le fasi di acquisizione e elaborazione dei dati ottenuti da SAPR con la finalità di dimostrare il grande potenziale di questi sistemi per la fotogrammetria aerea di prossimità. Il lavoro ha previsto lo studio delle principali problematiche attraverso prove sperimentali condotte durante le fasi del rilievo del sito archeologico di Eraclea Minoa (Agrigento). In particolare, i dati acquisiti hanno permesso di analizzare in dettaglio le procedure di pianificazione ed esecuzione di voli e le procedure di orientamento in relazione anche alle metodologie di rilievo dei punti di appoggio. La fase di pianificazione del volo è stata studi…
The Postglacial Isotopic Record of Intermediate Water Connects Mediterranean Sapropels and Organic‐Rich Layers
2020
Carbon‐rich layers exist at both sides of the Mediterranean Sea sedimentary record and are called sapropels and organic rich layers (ORLs), respectively, in the eastern and western basins. They have different levels of organic carbon accumulation and seafloor oxygen deprivation. The most recent sapropel and ORL depositions have a different timing, approximately 10.8–6.1 and 14.5–9.0 ka, respectively. Here we investigate oxygen isotopic records of three foraminifera species that occupy different habitats within the Sicily Channel water column since ~12.0 ka, thus in the sill between the eastern and western Mediterranean basins. These data are ice volume corrected, to get information on water…
Paesaggio culturale dei sistemi tradizionali: l'olivo in Italia
2005
We used a new sedimentary record to reconstruct the Holocene vegetation and fire history of Gorgo Basso, a coastal lake in south-western Sicily (Italy). Pollen and charcoal data suggest a fire-prone open grassland near the site until ca 10,000 cal yr BP (8050 cal BC), when Pistacia shrubland expanded and fire activity declined, probably in response to increased moisture availability. Evergreen Olea europaea woods expanded ca 8400 to decline abruptly at 8200 cal yr BP, when climatic conditions became drier at other sites in the Mediterranean region. Around 7000 cal yr BP evergreen broadleaved forests (Quercus ilex, Quercus suber and O. europaeo) expanded at the cost of open communities. The …
More Dematiaceous Hyphomycetes from Pantelleria Mediterranean maquis litter
2009
This is the second contribution to the knowledge of Dematiaceous Hyphomycetes found on different plant litters from Pantelleria mediterranean maquis. Four new species are proposted while others are identified only as genera because of the scanty material found.
Electrophysiological and behavioural responses of the housefly to “sweet” volatiles of the flowers of Caralluma europaea (Guss.) N.E. Br.
2013
In sapromyiophilous plants, up to date, long range attraction of fly pollinators has been thoroughly investigated and attributed to ‘‘fetid’’ floral compounds, while the ‘‘sweet’’ floral scent fraction has not been spe- cifically investigated and its role has received little atten- tion. The aim of the present study was to verify if terpenoids, which are the main compounds of the floral bouquet of Caralluma europaea, play a role in the attrac- tion of its pollinator Musca domestica. Terpinolene, a- terpinene and linalool, described as the three main volatiles of the flowers of C. europaea, were evaluated in electro- physiological investigations and blends of these com- pounds as well as the…
Sapromyophily in two species of Apocynaceae from Lampedusa island
2008
The hemagglutinin of Staphylococcus saprophyticus is a major adhesin for uroepithelial cells.
1996
The 160-kDa hemagglutinin of Staphylococcus saprophyticus also serves as a fibronectin-binding protein, and the two activities may be present on different parts of the molecule. Bacteria expressing the 160-kDa hemagglutinin bound in large numbers to histological sections of human ureters, whereas nonhemagglutinating bacteria did not bind. Binding was decreased by an antiserum to the 160-kDa protein and by a preparation of sheep erythrocyte membranes. Fibronectin had no effect. We therefore conclude that binding of S. saprophyticus to uroepithelial cells is mediated by the hemagglutinating activity of the 160-kDa surface protein.
La figura fantástica en un motivo de tres notas: Dialéctica de la música y la amenaza en el cine
2011
Sapropeļa izmantošana personīgās higiēnas līdzekļos: sapropeļa cieto ziepju īpašības un izmantošanas dzīves cikla novērtējums
2015
Bakalaura darba “Sapropeļa izmantošana personīgas higiēnas līdzekļos: sapropeļa cieto ziepju īpašības un izmantošanas dzīves cikla novērtējums” ietvaros tika noteikti triju tirgū pieejamo un četru paštaisīto ezeru nogulumu cieto ziepju kvalitātes rādītāji un īpašības, paštaisītām ziepēm tika modelēts izmantošanas dzīves cikls. Paštaisītās sapropeļa ziepes tika pagatavotas, izmantojot sapropeli kā pildījumu. Darba teorētiskajā daļā tika veikta zinātniskās literatūras analīze par cieto ziepju pagatavošanas metodēm, piedevu īpašībām un to sastāvu, produkta izmantošanas dzīves ciklu, kā arī par sapropeļa izmantošanu kosmetoloģijā un balneoloģijā. Bakalaura darba ietvaros pēc autores izstrādātās…
Ecological role of mycotoxins produced by Fusarium graminearum : consequences of the presence of deoxynivalenol (DON) in crop residues on the soil mi…
2012
Fusarium graminearum is a plant pathogenic fungus, causing devastating disease “Fusarium head blight” (FHB) in cereals including wheat and maize. It also contaminates the grains with mycotoxins including deoxynivalenol (DON) which are toxic to human and animals. This disease has resulted in the serious losses in grain yield and quality. We established through a first bibliographic review that during off season fungus survives saprophytically on the crop residues (ecological habitat) and serves as primary inoculum for the next season crop. However, we noticed also that the literature was poor about the role mycotoxins could play in the establishment of F. graminearum in such a habitat. The m…