198,718 research outputs found
Gli aspetti etico-politici della Repubblica nel commento di Proclo (dissertazioni VII/VIII e XI), a cura di Vegetti, M.- Abbate, M. (Napoli: Bibliopolis), 207-218.
No full textGli aspetti etico-politici della Repubblica nel commento di Proclo (dissertazioni VII/VIII e XI), a cura di Vegetti, M.- Abbate, M. (Napoli: Bibliopolis), 207-218
No full textLo studio prende in esame l'interpretazione procliana dei libri iV e V della Repubblica di Platone, mettendone in luce il carattere teologico
The occurrence of paraffin and other petroleum waxes in the marine environment: A review of the current legislative framework and shipping operational practices
No full textAmong the various materials that make up marine debris, lumps of petroleum waxes such as paraffin and microcrystalline wax, are regularly found on beaches worldwide, although not included in the current definition of marine litter. Ingestion by marine organisms is occasionally documented in the scientific literature and mass beaching events are frequently reported along the European coasts, with obvious detrimental consequences to the local communities that have to manage the clean-up and disposal of this substance. According to Annex II of the MARPOL regulation, petroleum waxes are classified as "high viscosity, solidifying, and persistent floating products," whose discharge at sea of tank-washing residues is strictly regulated, but currently permitted within certain limits. Starting from the description of a large stranding event occurred along the Italian coasts in 2017, we review the existing knowledge and regulatory framework and urge the relevant authorities to address this issue, showing that wax pollution is creating evident damages to the European coastal municipalities. Pending further investigations on the potential hazard that this kind of pollution is posing to marine ecosystems, we suggest a careful and more stringent revision of the policies regulating discharges of these products at sea. © 2018 Suaria, Aliani, Merlino and Abbate
Proclo. Teologia Platonica, Prefazione di W. Beierwaltes, Introduzione di G. Reale, Traduzione, note e apparati a cura di M. Abbate
No full textTrqduzione con commento filosofico-filologico della Teologia Platonica di Procl
Proclo. Teologia Platonica, Prefazione di W. Beierwaltes, Introduzione di G. Reale, Traduzione, note e apparati a cura di M. Abbate
No full textTrqduzione con commento filosofico-filologico della Teologia Platonica di Procl
Blooms of Ostreopsis ovata in the Gulf of La Spezia are related to abiotic factors and may threat a benthic polychaete
No full textBlooms of the ticoplanktonic-epibenthic dinoflagellate Ostreopsis ovata Fukuyo 1981 are an increasingly phenomenon in the Mediterranean Sea, reflected in the rapid growth of publications during the last years. Between 2000 and 2010, particularly during the summer seasons, several blooms were reported along the Italian coastal area (Sansoni et al., 2003; Simoni et al., 2004; Ungaro et al., 2005; Grillo et al., 2006; Zingone et al., 2006; Bianco et al., 2007; Totti et al., 2007) in some cases associated with health problems in persons living at the seashore.
In the Gulf of La Spezia (Ligurian Sea) the first massive occurrence of O. ovata was observed during August 1998 (Abbate et al., 2007). After the 2006 harmful bloom at the Gulf of La Spezia, an investigation was carried out to identify the critical factors that could favour O. ovata growth in order to predict its development.
Since 2008, the density of the cells of O. ovata in seawater was monitored weekly from spring to autumn; at the same time, seawater temperature and climatic parameters (air temperature, wind direction, wind speed, global solar radiation and rain precipitation) were continuously recorded. During summer 2010, four additional samples (200 ml) of O. ovata were collected on the coastal hard bottoms near Tellaro especially dedicated to toxicological tests with the polychaete Dinophilus gyrociliatus as model speces.
Direct sampling of benthic microalgae from the substrates was performed following the technique developed by Abbate et al. (2010).
Results suggested a synergic effect of water/air temperature and light as responsible for the dynamics of Ostreopsis ovata blooms. Our data showed that, along the coast of the Gulf of La Spezia, the bloom started with a sea temperature above 19 °C and the maximum abundances occurred, generally, after about two weeks of water temperature above 24 °C and mean daily global solar radiation over 275 W/m2.
Our preliminary results on toxicity tests suggested that the microalgae growth phase, in addition to its density, could be the main factor producing harmful effect on organisms living in temperate marine coastal hard bottoms
L'origine e il fondamento del tutto in Plotino. Il Principio primo come Identità assoluta The origin and the foundation of everything in Plotinus. The first principle as absolute identity
No full textThis paper aims to consider the nature of the first Principle - One Good and first God contemporaneously - in Plotinus' Neoplatonic perspective. It is regarded as archè (ton) panton, which means the Principle of all things. It is therefore not any one of all things, as it comes before everything: indeed, it is haploustaton, meaning «absolutely simple». This is the reason why archè cannot be positively described by way of cataphatic language, but only, so to speak, via remotionis, which means in an apophatic way: we cannot say what the first Principle is, but we can say what it is not. Although removed from every kind of determination, the Principle, as the very basis of the identity between Being and Intellect in the intelligible world, has a feature which is inherent in its own nature: the first Principle is the source and origin of the identity between being and thought in the intelligible reality whilst also being absolute Identity, meaning identity beyond every kind of relation and determination. The ascent itself to the One Good, which transcends both knowledge and thought, occurs via a sort of identification and fusion with it. The longing to reach the absolute Identity of the Principle arises from a need coming from the thought itself, in its own search for an authentic and ultimate foundation of all reality. Starting with Plotinus, in Western philosophical tradition the absolute Identity is regarded as being closely related with the nature of the Absolute, principle of all things, beyond every ontological determination and delimitation
Transferability of dipole moment derivatives between isotipic molecules: reference molecule
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