El Tom, O.M.M.; Omer, S.A.; Taha, A.Z.; Sayigh, A.A.M. - In: Renewable Energy 1 (1991) 2, pp. 199-205
The problem of preserving vaccines as well as perishable foodstuffs is absolutely conditioning the life of populations living in intertropical areas, that is to say, population deprived of all energy forms other than the one coming from the solar radiation. Vaccines keep their properties if...