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Abstract in UndeterminedAfrican agriculture is more dynamic than one would expect, given the chronic food crisis in the sub-continent. Due to macro-economic and political preconditions, however, farmers’ dynamism is channelled into other directions than would be required to attain self-sufficiency in food grains. This is the main conclusion of this study of farm dynamics in eight African countries
We depart from the intuitive idea of action –which for us is the same as an “act” both mental and physical– and its opposite the idea of no–action or passivity (stillness, apathy, immobility) to which we have a special term acedia (from late Latin and from the Greek akedeia, meaning “indifference”). András Pöstényi studied Freud’s idea of intentionality and concludes that Freud was strongly influe
The drivers of Fixed and Mobile Convergence (FMC) are discussed. A reference framework for FMC proposed by European project COMBO is then presented. Some use cases of FMC are described, showing the needs for mutualization and convergence of fixed and mobile broadband networks. Five network scenarios providing technical solutions to FMC use cases are proposed. They target an optimal and seamless qu
Preindustrial rural societies have often been pictured as stationary and immobile both geographically and socially. In the last decades this image has begun to change, especially as regards geographical mobility, while our knowledge of social mobility of rural preindustrial Europe is still rudimentary. This study focus on social attainment and mobility in a rural community of nineteenth century so
SiC Bipolar Junction Transistor has many benefits such as low on-state voltage drop, high switching speed and high maximum operating temperature. However it has one major disadvantage that it needs current to be turned on. This causes an increased power requirement of the driver circuit compared to voltage controlled devices like MOSFETs and IGBTs. The proposed driving concept is based on a verifi
Most of the power consumption has in the past been related to the dynamic activities, in a CMOS circuit. However, the static power, i.e. leakage, is a major contribution to the total power consumption, in present nano-meter scale technologies. This paper discusses static power reduction methodologies on architectural and arithmetical level. Novel arithmetic techniques to reduce the static power co
