1,720,988 research outputs found
Intervento di ripristino della copertura arborea su un'area del parco dell'Etna interessata da colata lavica recente.
No full textThe planning and results of a reafforestation carried out on a private area occurring in the Etna Wildlife Reserve C zone are presented. The area consists of a terraced slope 70.000 square meters wide, made out of a lava flow part which dates back to 1983.
At first were planted and seeded Astragalus siculus Biv. and Festuca circummediterranea Patzke, in order to set a pioneer vegetation cover; then were planted some aboreal species having a leading role in the physiognomical characterisation of the Etna landscape, like Betula aetnenis Raf., Pinus laricio Poiret, Populus tremula L.
The success of the intervention is shown by the fairly quick penetration of 26 species coming from the neighbouring natural vegetation. 11 of them are pre-forestal and wood-edge entities
La vegetazione del litorale di Manfria, presso Gela (Sicilia), area soggetta a vincolo archeologico.
No full textThe results of a phytosociological investigation about a coastal area of S. Sicily, close to Gela, are presented. The coexistence of several lithological substrata, as well as the particular climatic conditions of this area, gives rise to a noteworthy floristic and vegetational biodiversity. As matter of fact, a set of N. African species are here localized, taking part to peculiar vegetation types, sometimes exclusive of this sicilian coast-stretch. The observed plant communities are represented by psammophilous associations of Cakiletea maritimae, Ammophiletea and Malcolmietalia, salt-marsh vegetation of Sarcocornietea and Phragmito-Magnocericetea, halophilous rupicolous shrublands of Crithmo-Limonietea and Pegano-Salsoletea, maquis of Oleo-Ceratonion, garigues of Cisto-Micromerietea, grasslands of the Moricandio-Lygeion sparti, subhalophilous ephemeral meadows of Stipo-Bupleuretalia semicompositi and sciaphilous nitrophylous ones of Geranio-Cardaminetalia hirsutae. Therefore, owing to the exceptional floristic and vegetational interest, this area should be protected as a wildlife reserve, and not only by an archaeological bind, as it happens at present
Modeling of k-Opioid Receptor/Agonists Interactions Using Pharmacophore-Based and Docking Simulations
No full textA geographical information system for the evaluation of tourism impact on natural resources: the case of Salina (Eolian Archipelago, Italy)
No full textedito da W.T.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Benzo[d]isothiazolyl-imino-5-benzylidene-4-thiazolidinones as MMP-13 inhibitors and antioxidant agents
No full textBenzo[d]isothiazol-3-yl-benzamidines : a new class of protective agents on culture of human chondrocytes stimulated by IL-1B
No full textSynthesis and immunostimulating activity of a thioglycolipopeptide glycomimetic as a potential anticancer vaccine derived from Tn antigen
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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