The invention relates to a method for improving the performance of a mobile radiocommunication system with N broadcasting antennae in which different modes of multiple broadcast antennae are possible, including at least one mode assigned to n broadcast antennae. In an embodiment, a call manger is provided which is connected to telephones that have the same telephone number. The intelligent financial card better protects a merchant against fraudulent E-commerce transactions by providing a customer identity verification system that more reliably verifies that the person using financial card information for the E-commerce transaction is the actual person authorized to do so. Finally, the invention relates to DNAZYMs or DNA enzymes which specifically bind PCADM-1 mRNA to inhibit PCADM-1 gene expression and thereby destroy tumor cells and tumor tissue. Each passageway may also be equipped with a check valve to permit flow in only one direction through the passageway.