Rolf Ziegler

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Malaria (Plasmodium spp.) kills nearly one million people annually and this number will likely increase as drug and insecticide resistance reduces the effectiveness of current control strategies. The most important human malaria parasite, Plasmodium falciparum, undergoes a complex developmental cycle in the mosquito that takes approximately two weeks and(More)
In an infant with typical pyridoxine-dependent seizures, CSF GABA level, was determined before treatment with pyridoxine. Before onset of treatment, level of GABA in CSF was highly lowered (16 pmol/ml), pyridoxine level in serum was within normal range. Immediately after application of 80 mg pyridoxine fits stopped and the EEG was without seizure activity.(More)
The restless legs syndrome (RLS) occurs in adulthood with a prevalence of 5 to 10% and can be associated with diabetes mellitus. The prevalence in childhood, however, is unknown. We asked consecutive children with type 1 (insulin-dependent) diabetes mellitus as well as their parents and siblings about RLS according to a standardised questionnaire.(More)
Malaria (Plasmodium spp.) kills nearly one million people annually and this number will likely increase as drug and insecticide resistance reduces the effectiveness of current control strategies. The most important human malaria parasite, Plasmodium falciparum, undergoes a complex developmental cycle in the mosquito that takes approximately two weeks and(More)
Virtual Environments (VEs) represent a powerful novel way of Man Machine Interaction. Scientiic Visualization, on the other hand, copes with large amounts of numbers which are often hard to interpret. It is expected that new interaction techniques will enable applications of Scientiic Visualization which have not even been thought of yet. The availability(More)
This presentation describes how software testing has evolved from testing programs against themselves – code-based testing – to testing programs against their design – model-based testing – to testing programs against their requirements – requirement-based testing. The basic premise has always been the same, namely that a test is a comparison of actual(More)