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Search Results: 1 - 10 of 575 matches for " Franca Sangiorgio "
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Spatial analysis of plant detritus processing in a Mediterranean River type: the case of the River Tirso Basin, Sardinia, Italy
Maurizio Pinna,Franca Sangiorgio,Alessio Fonnesu,Alberto Basset,
Maurizio Pinn
,Franca Sangiorgio,Alessio Fonnesu,Alberto Basset

环境科学学报(英文版) , 2003,
Abstract: The river continuum concept represents the most general framework addressing the spatial variation of both structure and function in river ecosystems. In the Mediterranean ecoregion, summer drought events and dams constitute the main sources of local disturbance to the structure and functioning of river ecosystems occurring in the river basin. In this study, we analysed patterns of spatial variation of detritus processing in a 7th order river of the Mediterranean ecoregion (River Tirso, Sardinia-Italy) and in three 4th order sub-basins which were exposed to different summer drought pressures. The study was carried out on Phragmites australis and Alnus glutinosa leaf detritus at 31 field sites in seasonal field experiment. Detritus processing rates were higher for Alnus glutinosa than for Phragmites australis plant detritus. Processing rates of Alnus glutinosa leaves varied among seasons and study sites from 0.006 d(-1) to 0.189 d(-1) and those of Phragmites australis leaves ranged from 0.0008 d(-1) to 0.102 d(-1), with the lowest values occurring at sites exposed to summer drought. Seasons and sites accounted for a significant proportion of such variability. Alder detritus decay rates generally decreased with increasing stream order, while reed detritus decay rates generally increased on the same spatial gradient. Summer drought events affected these spatial patterns of variation by influencing significantly the decay rates of both plant detritus. The comparisons among and within sub-basins showed strong negative influence of summer drought on detritus processing rates. Similarly, in the entire River Tirso basin decay rates were always lower at disturbed than at undisturbed sites for each stream order; decay rates of reed detritus remained lower at those sites even after the end of the disturbance events, while alder decay rates recovered rapidly from the summer drought perturbations. The different recovery of the processing rates of the two leaves could also explain the different patterns of spatial variation observed between the two leaves.
Cubic Spline Approximation for Weakly Singular Integral Models  [PDF]
Franca Caliò, Elena Marchetti
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.411211
Abstract: In this paper we propose a numerical collocation method to approximate the solution of linear integral mixed Volterra Fredholm equations of the second kind, with particular weakly singular kernels. The collocation method is based on the class of quasi-interpolatory splines on locally uniform mesh. These approximating functions are particularly suitable to tackle on problems with weakly regular solutions. We analyse the convergence problems and we present some numerical results and comparisons to confirm the efficiency of the numerical model.
Revista Venezolana de Estudios de la Mujer , 2006,
Abstract: in this article we attempt to analyse the violence in the couple because is an actual and important theme framed into the complex and troublesome time lived by our society. maltreatment can invade silently the homes, acting as an undesirable guest becoming after quite hard to beat off. it is presumed herein that if is likely eradicate such violence or guiding the future families, so this will be a protective factor within the new home, for when a couple is adequately oriented, informed and accompanied they will have a better mental health, conducive also to a successful function in motherhood and fatherhood, and therefore a guarantee to attain a more humane, conscious and fortunate society.
The Adoption of Formal HRM Practices by Small Firms in Africa
Franca Ovadje
Journal of Language, Technology & Entrepreneurship in Africa , 2010,
Abstract: Several studies in the extant literature indicate that there is a significant relationship between Human Resource Management (HRM) practices and firm performance (Arthur, 1994; MacDuffie, 1995; Huselid, 1995; Guest et al. 2003). Huselid (1995) found that investments in high performance work systems were associated with greater productivity and corporate financial performance. The study by Guest et al. (2003) suggests a "positive association between the use of more HR practices and lower labour turnover and higher profitability". Although a large majority of the studies were carried out in large companies, some support has been found for a positive association between HRM practices and performance in small and medium sized firms (Kotey & Slade, 2005).
La communication en langue étrangère dans la le on de DNL (discipline non linguistique)
Franca Quartapelle
Synergies Italie , 2012,
Abstract: Le CLIL est une proposition didactique et pédagogique lancée en 1996 par le Conseil de l’Europe et accueillie en 2010 par le système scolaire italien dans les Regolamenti qui refondent l’enseignement secondaire. Le CLIL est une méthode innovatrice et efficace qui conjugue l’étude des langues étrangères avec l’acquisition naturelle et contribue à en développer la ma trise. Il nécessite cependant quelques précautions. Les apprenants ne connaissent ni le langage de la discipline, ni ses tournures, ni sa structure discursive. Le peu de familiarité avec la langue utilisée pour l’étude de la discipline présente inévitablement des difficultés que l’enseignant peut tenter de prévenir en intégrant la communication verbale avec d’autres langages, employant les stratégies de communication analogues à celles de la le on de langue ou en cas de difficultés dans la communication. Mais il est surtout opportun que l’apprentissage du langage spécifique soit soutenu par des exercices qui tiennent compte aussi bien des caractéristiques du langage même, variant selon que les disciplines appartiennent aux sciences humaines et sociales, aux disciplines techniques et scientifiques, ou encore aux disciplines artistiques et pratiques, que de l’utilisation de ce langage en contexte. Ces trois groupes de disciplines possèdent en effet des caractéristiques en commun qui concernent le lexique, la structure syntaxique et les activités communicatives. Ces aspects seront analysés en prenant comme exemple une discipline scientifique, la physique.
Fare italiano con storia e geografia. Come affrontare la lingua delle discipline
Franca Bosc
Synergies Italie , 2012,
Abstract: Cet article traite la problématique des difficultés des étudiants alloglottes, et celles des autres étudiants aussi, lorsqu’ils affrontent l’étude des disciplines. Nous analysons aux niveaux lexical, morphosyntaxique et textuel les caractéristiques linguistiques des manuels scolaires qui véhiculent les informations concernant les différentes disciplines, et nous proposons quelques suggestions didactiques à mettre en pratique dans les classes multilingues.
Ecospirit: Religion and the Environment
Franca Bellarsi
Ecozon@ : European Journal of Literature, Culture and Environment , 2011,
Lucr?ri ?tiin?ifice : Management Agricol , 2009,
Abstract: The trade constitutes an old preoccupation of people. Within it the export or international trade has always been a preferred field of activity. The deepening and diversification of economic interdependences between the world’s countries, especially after the Second World War, brought the problem of international economic relations back in close-up shot, not only for specialists, but also for the public. These changes reactivated the specialists’ interest in the international trade theories and, implicitly, in the theoretical controversial history related to this problem.
Correspondence of the Mantua speakers at the Sforza court (1450-1500) Carteggio degli Oratori mantovani alla corte sforzesca (1450-1500)
Franca Leverotti
Reti Medievali Rivista , 2001, DOI: 10.6092/1593-2214/227
Abstract: Making also a few general remarks about diplomatic sources, which have now regained a central standing in scholarly attention, this essay assesses such a recent achievement in publishing as the sixteen-volume and multi-editor critical version of the correspondence of the orators at the Gonzaga court. Svolgendo anche considerazioni di carattere generale sull’importanza delle fonti diplomatiche, oggi nuovamente al centro dell’attenzione storiografica, il saggio traccia il rapido bilancio dell’impresa editoriale – giunta a conclusione – costituita dall’edizione (in sedici volumi, curati da diversi studiosi) dei carteggi degli oratori gonzagheschi.
Sentimentos topológicos: a m o nas artes plásticas
Patricia Franca
ARS (S?o Paulo) , 2007, DOI: 10.1590/s1678-53202007000200010
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