Embodiments of the invention relate to performing a scan of a memory region associated with a virtual machine. New data structures in shared memory that are either read-only or write-only by CPU allow the CPU to efficiently utilize techniques such as write-posting and cache prefetching. Such compositions have utility as additives for high temperature lubricants. In an image transmission information display apparatus for displaying transmission information on a screen for confirmation of a transmission status of a medical image to be sent to a plurality of addressees, an image list is displayed on the screen. In another embodiment, together with the substantionally confocal arrangement of lens components, , the longitudinal scanning is performed by varying the optical path length for the low coherence optical radiation propagating from the transverse scanning surface to the optical system, i. The invention moreover relates to a method for monitoring dissolved and undissolved gases, wherein the method for monitoring dissolved gases is performed and undissolved gas is fed back into the separating vessel, and to a device for performing the methods according to the invention.