Technology competition between wireless communication technologies can lead to new, more or less disruptive services. A potentially disruptive technology would be to have unlicensed transmission in the lower UHF bands at power levels up to, e.g. 2 W EIRP. This would give citizens a share of the...

The continuing absence of innovation in Europe's mobile services industry is identified and characterised here, with such examples as mobile Internet and mobile music. Innovation failure is a critical factor leading to a lack of high-income jobs, network effects, and price reductions for data...

[fre] L'analyse statistique s'étend sur plusieurs céréales : blé, riz, maïs, orge, seigle, avoine, sorgho et millet. Elle traite pendant la période 1960-1980 de tous les pays du monde. Pour améliorer la présentation de la perception de l'intensité des facteurs observés, plusieurs...