Search results for "CEA"

Apporto di sostanza organica e nutrienti dalle banquettes di Posidonia oceanica (L.) Delile verso agroecosistemi mediterranei.

2011

Estimating aggregated nutrient fluxes in four Finnish rivers via Gaussian state space models

2013

Reliable estimates of the nutrient fluxes carried by rivers from land-based sources to the sea are needed for efficient abatement of marine eutrophication. Although nutrient concentrations in rivers generally display large temporal variation, sampling and analysis for nutrients, unlike flow measurements, are rarely performed on a daily basis. The infrequent data calls for ways to reliably estimate the nutrient concentrations of the missing days. Here, we use the Gaussian state space models with daily water flow as a predictor variable to predict missing nutrient concentrations for four agriculturally impacted Finnish rivers. Via simulation of Gaussian state space models, we are able to esti…

ANCESTRALITY OR MORPHOLOGICAL CONVERGENCE IN THE MOLLISSIMA AND ITALICA GROUPS OF SILENE IN THE WESTERN MEDITERRANEAN BASIN

2010

The effect of defect location on coating fragmentation patterns under biaxial tension

2005

Fragmentation of a coating possessing orthogonal preferential crack propagation directions is modeled for equibiaxial tensile loading. Two plausible cracking scenarios are compared, caused by flaws randomly distributed over the area of the coating or along the coating fragment edges. The two fragmentation scenarios considered are shown to yield qualitatively different fragment patterns.

Orientare nella scuola alla scelta formativo-professionale post-diploma con la metodologia «SeCo»

2017

È stata effettuata un’indagine pilota ispirata alla teoria di Pennebaker e ai principi della scuola rogersiana di counseling. 88 studenti del quinto anno di un liceo di Enna hanno partecipato, tra il mese di novembre 2015 e il mese di maggio 2016, a un progetto di orientamento che ha previsto la sperimentazione della metodologia educativa «SeCo» (Scrittura espressiva e Colloquio di orientamento) per la costruzione del loro progetto di vita professionale. L’applicazione di questa metodologia ha implicato lo svolgimento di due attività formative: tre sessioni di scrittura espressivo-prospettica e tre colloqui individuali di orientamento. Si è voluto verificare se la partecipazione a queste at…

Gas geochemistry of shallow submarine vents in the Aegean sea (Greece)

2017

The Aegean area, which is geodynamically very active, is characterised by intense seismic activity, presence of active volcanic systems and anomalous geothermal gradients. Like other regions of intense geodynamic activity it is also characterized by extensive geogenic degassing. Gas manifestations are not only widespread on land but are also very frequent underwater. Many of these, as for example those of Milos and Santorini, are known since long time and have been previously studied although the targets were generally the hot waters or the sediments affected by the emissions (Smith and Cronan 1978, Dando et al. 1995, Price et al. 2013, Megalovassilis 2014).The present study aims at produci…

In situ measurements of background aerosol and subvisible cirrus in the tropical tropopause region

2002

[1] In situ aerosol measurements were performed in the Indian Ocean Intertropical Convergence Zone (ITCZ) region during the Airborne Polar Experiment-Third European Stratospheric Experiment on Ozone (APE-THESEO) field campaign based in Mahe, Seychelles between 24 February and 6 March 1999. These are measurements of particle size distributions with a laser optical particle counter of the Forward Scattering Spectrometer Probe (FSSP)-300 type operated on the Russian M-55 high-altitude research aircraft Geophysica in the tropical upper troposphere and lower stratosphere up to altitudes of 21 km. On 24 and 27 February 1999, ultrathin layers of cirrus clouds were penetrated by Geophysica directly…

Klasyczne modele racjonalizacji cierpienia i zła. Próba teologicznej oceny

2016

W artykule podjęto próbę teologicznej oceny klasycznych modeli racjonalizacji cierpienia i zła. Należą do nich: harmonizacja i estetyzacja, ontologiczna depotencjacja, umoralizowanie oraz pedagogizacja zła. Autor dochodzi do wniosku, iż żaden z nich nie daje wystarczającej odpowiedzi na bolesne pytanie: Dlaczego Bóg dopuszcza zło? Niemniej jednak każdy z wymienionych modeli zawiera elementy, które z powodzeniem mogą być wykorzystane we współczesnym dyskursie teodycealnym. Istnienie zła nie jest wystarczającym dowodem na nieistnienie Boga. To, w jaki sposób niewierzący postrzegają zło, jest już określone przez ich niewiarę. I odwrotnie: wierzący postrzegają zło w świetle wiary. Dla chrześcij…

Living Coccolithophores from the Gulf of Sirte (Southern Mediterranean Sea) during the summer of 2008

2012

The Gulf of Sirte is a largely unexplored area in the southernmost Mediterranean Sea.We are presenting here 2008 summer data on the distribution pattern of living coccolithophores, a main phytoplankton calcifying group, in 105 samples from 20 stations. The survey includes coastal and offshore stations, enabling us to provide indications on the dynamics of phytoplankton productivity in relation to oceanographic processes. The total coccosphere concentrations show higher values in the offshore stations and lower ones for coastal sites. Umbellosphaera tenuis, Emiliania huxleyi, Florisphaera profunda, Syracosphaera pulchra HOL (Calyptrosphaera oblonga) and Rhabdosphaera spp. dominate the assemb…

CO(2)-water supercritical mixtures: Test of a potential model against neutron diffraction data

2007

Abstract A neutron diffraction experiment on supercritical mixtures of water and CO 2 at two concentrations is presented. Data are analyzed within the EPSR framework and the water–water and water–CO 2 radial distribution functions are compared with those calculated by a Molecular Dynamics simulation performed by using the TIPS2 and EPM-M potential models for water and CO 2 respectively. It is found that the Molecular Dynamics simulation reproduces the overall shape of the site–site radial distribution functions, although missing a few subtle changes brought along when the CO 2 concentration is increased.