According to the Central Brain Tumor Registry in the United States (CBTRUS), there were approximately 18,000 new cases of meningioma diagnosed annually from 2004 to 2006. Currently, the estimated prevalence in the United States is that there are 170,000 people with meningioma, because of the prolonged natural history of meningiomas and because asymptomatic elderly patients and those with signif...

A resolution equation for EKC was developed starting from the resolution equation for electrophoresis. The equation was used to predict the influence of the migration window and partitioning on resolution in EKC. It is theoretically shown that the migration window can have a dramatic effect on resolution in EKC. Using a novel chiral surfactant, the influence of the migration window and partitio...

This article is a corrected reprint of K. R. Popper (1948a). On the Theory Deduction, Part I. Derivation and its Generalizations. In: Koninklijke Nederlandse Akademie vanWetenschappen, Proceedings Section Sciences 51, pp. 173–183.