Author:Pretorius, PJ; Linder, PW; Slabbert, JL; Wade, PWDate:Sep 2001Observed mortalities of Daphnia pulex exposed to a single concentration of zinc in different test waters are explained in terms of the chemical behaviour of zinc in solution, as predicted by chemical speciation modelling. Multivariate correlation ...Read more
Author:Robinson, TP; Harris, RS; Hopkins, JS; Williams, BGDate:Jun 2002In many African countries where both Government resources and donor aid for the control of tsetse-transmitted trypanosomiasis are declining, there is an increasing need to identify areas where intervention is most likely to be technically, ...Read more