</titre> This paper presents the results of an investigation of approximately six thousand Guinean households? enterprises, from between 2002 and 2003. It shows that, in difficult economic and social situations, in which the state provides less basic social services, the creation of activities...

</titre> Medical tourism is seen as a recent concept and is mainly seen as plastic surgery in developing countries. However, medical tourism refers to patients taking advantage of medical services abroad in an environment different from that of their everyday lives. Several factors have led to this...

The earthquake that hit Haiti on January 12 2010 underlined some of the challenges inherent to a large scale humanitarian crisis in a country accustomed to dealing with protracted crises. This article analyses the coordination mechanism implemented by the Office for the Coordination of...

</titre> In the Algerian steppe, in fifty years, population, acreage and numbers of sheeps and goats have tripled, imports of feed grains have increased dramatically ; the double transhumance, in the Sahara in summer and in the Tell in winter, has decreased and the stepic ranges, overcrowded and...