Abstract: Therapeutic compositions for the treatment of infectious diseases are disclosed. These compositions comprise xanthones and xanthone derivatives, such as 2,3,4,5,6-pentahydroxyxanthone. Also disclosed are methods for the treatment of infectious diseases using such compounds.

Abstract: Method and apparatus for capturing, editing, storing, and reproducing multiple graphic image components for the production of personalized printing materials. From data entered in the computer, personal characteristics of the customer are selected and the image of the customer is integrated into a pre-printed background. Both method and apparatus allow for controlled additive coloration to a basic background to incorporate shading, contour, fine detail, and variation in skin tone and hair color in the finished drawing of the customer.

Abstract: The present invention refers to a plasmatron as well as to a process for stable operation of plasmatrons with steam as the plasma gas, in the case of which the operational fluctuations which are typical of steam plasmas as well as the increased degree of electrode erosion are to be avoided. In accordance with the present invention, this is achieved on the basis of a limitation of electrode cooling by using hot water as a coolant having a temperature of at least 80.degree. C. If necessary, it is possible to use, on the one hand, hot water cooling and to exclude, on the other hand, a condensation of the steam on the electrodes by admixing a gas which will lower the condensation temperature of the steam.