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Nanoparticles can be defined as lumps of solid matter dispersed in a liquid or gas, with at least one characteristic dimension smaller than 100 nm. Their shape is very often spherical, especially when they are made of amorphous material such as silica or …
17:00 to 18:00
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This lesson illustrated the scientific fusion that has taken place between the polymer community and that of researchers developing sol-gel processes based on soft inorganic chemistry. Historically, the two communities initially developed hybrid materials …
16:00 to 17:00
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11:15 to 12:30
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Three-dimensional mantle structure: seismic tomography and waveform modeling. Large structures at the base of the mantle: primordial reservoir or plate graveyard? Relationship with surface observations (hot spots, etc.). Introduction of fine structure …
14:30 to 15:30
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History of Gâthâ studies: Johanna Narten recognizes that the Gâthâs, along with the Yasna Haptaŋhāiti in prose, form a whole that can be defined as the ancient Avesta (1986). Jean Kellens and Éric Pirart ratify this new fact, at the same time as they …
09:30 to 10:30
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Text taken from La Lettre du Collège de France n° 34, Paris, Collège de France, p. 24, ISSN 1628-2329 The last lecture ("Text, image and medium: the evolution of Greco-Roman magic stones") dealt with the apparent explosion - to modern eyes - of magic gems …
17:00 to 18:00
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14:30 to 15:30
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