3,080 research outputs found
Portraits of Leonardo da Vinci
No full textUsing an iterative method, applied to image processing, a portrait of a young man, probably a self-portrait of Leonardo da Vinci, is restored. Merging this portrait with the self-portrait in red chalk, we can have the features of a middle-aged Leonardo. This digital portrait can be compared with the image of Plato, depicted by Raphael in the Scuola di Atene, generally considered as a portrait of Leonardo. The iterative method used for the image processing had been developed by the author on previous iterative calculations used to solve the Boltzmann equatio
Salamandra salamandra, Salamandrina terdigitata, Rana graeca: nuove stazioni del senese.
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Segnalazione di zigolo golarossa (Emberiza leucocephalos S.G. Gmelin, 1771) dalla Toscana meridionale (Passeriformes, Emberizidae)
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Note sui predatori di Cephalota circumdata leonschaeferi (Cassola) nell'Oasi Faunistica della Laguna di Orbetello (Grosseto)
No full textOsservazione invernale di succiacapre (Caprimulgus europaeus) in provincia di Siena (Caprimulgiformes, Caprimulgidae)
No full textLa Fauna. Guida trekking Roccastrada. Le Riserve Naturali del Torrente Farma e La Pietra.
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