Search results for "PES"
showing 10 items of 5212 documents
Trophic Transfer of Trace Elements in an Isotopically Constructed Food Chain From a Semi-enclosed Marine Coastal Area (Stagnone di Marsala, Sicily, M…
2012
Trace element accumulation is particularly important in coastal and transitional environments, which act as contaminant buffers between the continental and marine systems. We compared trace element transfer to the biota in two locations with different open-sea exposures in a semi-enclosed marine coastal area (Stagnone di Marsala, Sicily, Italy) using isotopically reconstructed food chains. Samples of sediment, macroalgae, seagrasses, invertebrates, fish, and bird feathers were sampled in July 2006 and analysed for stable carbon and nitrogen isotopes (δ(13)C, δ(15)N) and trace elements (arsenic [As], cadmium [Cd], total mercury [THg], and lead [Pb]). Trophic magnification factors were calcul…
Chemical, mineralogical and isotopic characterization of black crusts and airborne particulate matter in the historical urban area of Palermo
2009
Contributo per una visione contemporanea dell’azienda agricola: tra sostenibilità e sfide del mondo digitale
2023
Le sfide che l’umanità sta affrontando e da cui dipende la sopravvivenza del pianeta, il diffondersi nell’ambito dell’attività agricola di tecnologie digitali sempre più avanzate e la necessità di adottare un approccio sostenibile che preservi le risorse a tutela delle generazioni future hanno condotto l’azienda agricola a cambiare gradualmente volto. Questo libro mira a contribuire a un’aggiornata riflessione sul ruolo dell’imprenditore agricolo e dell’azienda da lui condotta, osservandone l’organizzazione e composizione alla luce delle regole che oggi la disciplinano e guardando alle innovazioni necessarie a garantire il raggiungimento dei pressanti obiettivi climatici e ambientali verso …
A comparison of the impacts of introduced signal crayfish and native noble crayfish in boreal lake ecosystems
2014
Closure to Experimental Investigation on Compressive Behavior of Bottle-Shaped Struts
2012
Cargamentos de conservas de pescado béticas en el Mediterráneo Occidental durante la época Julio-Claudia
2023
A lo largo del Alto Imperio, la ciudad de Roma cuenta con aproximadamente un millón de habitantes, población que no igualará ninguna otra ciudad europea hasta el Londres del siglo XVIII, ni ninguna otra ciudad mediterránea hasta el Estambul del siglo XX. Con el fin de preservar su estabilidad, el Estado ha de atender tanto a las necesidades alimenticias de la megalópolis, como a las de las de las legiones diseminadas en las fronteras del Imperio. En este contexto, las provincias romanas como la Bética (actual Andalucía grosso modo) contribuyeron al aprovisionamiento alimenticio de la plebs y el ejército, implicando en ello numerosos barcos para la rápida y eficiente exportación de sus biene…
Overland flow generation on hillslopes of complex topography: analytical Solutions
2007
The analytical solution of the overland flow equations developed by Agnese et al. (2001; Hydrological Processes15: 3225–3238) for rectangular straight hillslopes was extended to convergent and divergent surfaces and to concave and convex profiles. Towards this aim, the conical convergent and divergent surfaces are approximated by a trapezoidal shape, and the overland flow is assumed to be always one-dimensional. A simple ‘shape factor’ accounting for both planform geometry and profile shape was introduced: for each planform geometry, a brachistochrone profile was obtained by minimizing a functional containing a slope function of the profile. Minima shape factors are associated with brachist…
Transport and partitioning of 13C-photoassimilate between peach fruiting shoots
2008
We used a non-intrusive method (13CO2 feeding) and a manipulative approach to see whether fruiting shoots in peach trees are autonomous or may import carbon from neighboring shoots under forced conditions, and whether the degree of autonomy is influenced by the source-sink relationship on the shoot. In three experiments, leaf to fruit ratio (L:F) of selected fruiting shoots was moderately (2005 and 2006) or strongly (extreme enforcing 2006) altered to either encourage or discourage movement of carbon from 13C-labeled sending shoots (SFS) to receiving fruiting shoots (RFS), both located on the same main scaffold of V-shaped peach trees. At stage I and III of fruit growth, fruit and shoot tip…
Socializēšanās prasmju veicināšana pusaudžiem no ilgstošas sociālās aprūpes un rehabilitācijas institūcijām
2021
Diplomdarba tēma ir “Socializēšanās prasmju veicināšana pusaudžiem no ilgstošas sociālās aprūpes un rehabilitācijas institūcijām”. Darba autore ir Darja Lipska-Iščuka. Darba vadītāja ir Prof., Dr. paed. Sarmīte Tūbele. Diplomdarba mērķis ir izstrādāt aktivitāti, kura veicina pusaudžu no ilgstošas sociālās aprūpes un sociālās rehabilitācijas institūcijām socializēšanās prasmi. Šī darba unikalitāte ir tajā, ka aktivitāte ir izstrādāta un izglītības process ir vadīts no speciālās izglītības skolotāja skatupunkta, nevis psihologa vai sociālā darbinieka, kā tas bieži notiek. Pirmajā un otrajā diplomdarba daļā autore analizē teorētisko literatūru un laikrakstus, raksturo terminu “pusaudžu vecumpo…