Search results for "mountain"
showing 10 items of 168 documents
Voce "Olympian deities"
2016
The Greek gods are collectively designated in the literary sources as Olympian, with a clear reference to their seat on the top of Olympos mountain, or more generally in heaven. Beginning with nineteenth-century scholarship, Olympian deities have been considered a monolithic divine category separate from the chthonic deities in a dichotomous understanding of Greek religion.
A syntaxonomical survey of the Sicilian dwarf shrub vegetation belonging to the class Rumici-Astragaletea siculi
2005
Basing on literature data and unpublished relevés from Sicily, a survey of the syntaxa belonging to the class Rumici-Astragaletea siculi Pignatti & Nimis 1980 em. Mucina 1997 (= Cerastio-Carlinetea nebrodensis Brullo 1984) is presented. The class groups orophilous plant communities dominated by dwarf- shrubs, often with a pulvinate and thorny growth form. The class is represented in Sicily by two orders: Rumici-Astragaletalia siculi Pignatti & Nimis 1980, including the sole alliance Rumici-Astragalion siculi Poli 1965, restricted to Mount Aetna, and Erysimo-Jurinetalia bocconei Brullo 1984, including two alliances: the acidophilous Armerion nebrodensis Brullo 1984 and the basiphilous Cerast…
Floristic survey of the former royal hunting reserve of Renda, near Palermo (Sicily, Italy)
2021
A mountainous area in western Sicily, where relic wood vegetation is still preserved notwithstanding past and present human pressure, is here analysed in order to prepare a checklist of its vascular flora. Field investigations allowed to compile a floristic inventory including 601 infrageneric taxa belonging to 304 genera and 80 families. Some remarks on the biological and chorological spectra are presented, and some measures to protect flora and vegetation are suggested, too.
Contribution to the phytosociological characterization of the forest vegetation of the Sicani Mountains (inland of north-western Sicily).
2016
The results of a phytosociological survey on the main forest vegetation aspects of the Sicani Mountains (inland of north-western Sicily), in turn included in the homonymous Regional Park recently established, are presented. This expansive territory (43,687 hectares), located between the Agrigento and Palermo provinces, is mainly composed by carbonate and silico-carbonate formations of the Sicani Units, whose highest peaks are represented by Mount Cammarata (1578 m a.s.l.), Mount delle Rose (1436 m), Pizzo Cangialoso (1420 m) and Mount Pernice (1393 m). Under the bioclimatic aspect, the area falls within the thermo- and supramediterranean belts, with ombrotype ranging from upper dry (annual …
The contamination legacy of a decommissioned iron smelter in the Italian Alps
2018
The economically important activity of metal processing can tend to contribute to the degradation of the environment. Smelting is an important source of contaminants, dispersing large quantities of potentially toxic elements (PTE) and coproducts into the environment. Soils in the vicinity of smelters frequently contain high concentrations of PTE. In terms of the quantities processed, the major PTE are iron (Fe), aluminium (Al), copper (Cu), lead (Pb), manganese (Mn), and zinc (Zn); of these Cu, Pb and Zn are, potentially, highly hazardous elements. The general problem addressed by this study is to determine if the PTE concentration in the soils of an area downwind from a decommissioned iron…
Bifurcation phenomena for the positive solutions of semilinear elliptic problems with mixed boundary conditions
2016
We consider a parametric semilinear elliptic equation with a Cara-theodory reaction which exhibits competing nonlinearities. It is "concave" (sub-linear) near the origin and "convex" (superlinear) or linear near $+\infty$. Using variational methods based on the critical point theory, coupled with suitable truncation and comparison techniques, we prove a bifurcation-type theorem, describing the set of positive solutions as the parameter varies.
Du comté d'Argyle au royaume de Saba : Nodier et l'Écosse des origines
2011
Autre compte rendu d'Hélène Védrine (revue Romantisme) : "L’article de Sébastien Vacelet continue cette réflexion sur l’écriture viatique et son rapport à l’espace, en s’intéressant à la trilogie écossaise de Nodier : Promenade de Dieppe aux montagnes d’Écosse, Trilby et La Fée aux miettes. Cet article extrêmement renseigné – Sébastien Vacelet est l’auteur d’une thèse sur l’Écosse des romantiques dirigée par Georges Zaragoza et a organisé à Dijon une récente journée d’études sur le même thème qui fera l’objet du volume 3 des Cahiers d’études nodiéristes – montre comment les connaissances historiques et livresques de Nodier sur l’Écosse servent à bâtir une fiction des origines qui gomme les …
Sur la francisation d’un toponyme écossais : l’« Argail » de Charles Nodier
2011
International audience; This study opposes, on the one hand, the concept exposed by linguist and theoretician Charles Nodier (1780-1844) in his Elementary Notions in Linguistics (1834) referring to the inalterable spelling of proper nouns, and, on the other hand, his practice as a storyteller and creator in his Trilby (1822). We will also consider answering the question of the gallicization of the toponym "Argyle" (allusion to the lake region in Scotland), spelled "Argail" by Nodier in his tale, contrary to all expectations. "Argail" , beyond the mere process of transliteration and trompe-l’oeil justifications revealed by Nodier himself in the preface of his book, opens up to subtle manipul…
A min-max principle for non-differentiable functions with a weak compactness condition
2009
A general critical point result established by Ghoussoub is extended to the case of locally Lipschitz continuous functions satisfying a weak Palais-Smale hypothesis, which includes the so-called non-smooth Cerami condition. Some special cases are then pointed out.
Nonlinear scalar field equations with general nonlinearity
2018
Consider the nonlinear scalar field equation \begin{equation} \label{a1} -\Delta{u}= f(u)\quad\text{in}~\mathbb{R}^N,\qquad u\in H^1(\mathbb{R}^N), \end{equation} where $N\geq3$ and $f$ satisfies the general Berestycki-Lions conditions. We are interested in the existence of positive ground states, of nonradial solutions and in the multiplicity of radial and nonradial solutions. Very recently Mederski [30] made a major advance in that direction through the development, in an abstract setting, of a new critical point theory for constrained functionals. In this paper we propose an alternative, more elementary approach, which permits to recover Mederski's results on the scalar field equation. T…