"Were it not for these interventions, the situation would be far worse and many more rhino would be lost," said Molewa.
If managers or policymakers overreact in response to slow results of an intervention by initiating new interventions, the situation can change wildly (oscillation).
Although child mortality has been declining worldwide as a result of socioeconomic development and implementation of child survival interventions, the situation in Africa is still frightening.
In the intervention group, the situation had improved after the intervention period while in the control group the situation was still similar.
There were many differences in the analytical approaches adopted by the different studies: while some compared the results of the intervention with the situation at baseline, and some compared the results between groups pre- and post-intervention, others focused exclusively on the position post-intervention.
The 1991 order telling the (multi-ethnic) Yugoslavian army to fight the secessionist states, Croatia and Slovenia, was given by the then head of the federal government, Ante Markovic, a darling of the west - and western intervention made the situation much worse.
On Saturday he added that Poland needs a strong army "so that an attack on Poland would mean a real war, not some sort of intervention".As the situation to Poland's east remains unpredictable, this tune which benefits Mr Tusk's party could continue until election day.
Mr Kershaw said: "Without radical intervention now, the situation has no prospect of turning itself around".
