1. 01/01/1989 Ce papier est une d'une série publiée par les Volontaires dans Assistance Technique pour fournir un introduction ŕ technologies dernier cri spécifiques d'intéręt ŕ gens au pays en voie de développement. Les papiers sont projetés d'ętre utilisé comme directives pour aider des gens ŕ choisir...
  2. 20/04/2014 There is no doubt in my mind that West African farmers want development if that means, among other things, more productive farming. Of course they would rather harvest seven than three sacks of sorghum per hectare. If that is so, why do so many choose not to engage in development projects that...
  3. 20/01/2013 “Farmers near Kabale in Kenya describe traditions, now considered superstitious, that certain euphorbias cause cancer when planted near the homestead.” Now the carcinogenic effects of one common living fence species,Euphorbia tirucalli, have been described. The active carcinogen has been found...