Giuseppe Leonardi

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Continuous interaction of mother and infant in the first weeks and months of an infant's life entrains the infant on many crucial aspects of how to do things together. Contingencies of gaze, vocalizations, and other movements are slowly routinized; this scaffolds directing of attention to each other and the world and gives to such multimodal interactions(More)
This paper illustrates the phenomenon of the critical speed in the range 100-300 km/h. A real explanation and a precise calculation of the critical speed seems to rest an unresolved problem in many cases. Some authors, analogous to " Mach effect " , have attributed this phenomenon to the reaching the Rayleigh wave speed of substructure by trains. But this(More)
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