Abstract: A page of a printed product having a plurality of information fields arranged in different printed columns is provided. At least one perforated line, extending parallel to the height of the page, is generated in the page between at least two printed columns. The at least one perforated line is formed over the entire height of the page. At least one printed column, along with its at least one information field, can be completely separated from the remaining part of the page via a separation process to be performed along a single such perforated line. The perforated line to be used to execute the separation process extends through a pictogram that is situated along both sides of this perforated line. The pictogram visualizes the position of this perforated line. A longitudinal perforation device for a web-fed rotary printing press can be used to produce this page and has at least one perforating blade for generating the perforated line. The longitudinal perforation device is configured as an autonomous module.

Abstract: A page of a printed product having a plurality of information fields arranged in different printed columns is provided. At least one perforated line, extending parallel to the height of the page, is generated in the page between at least two printed columns. The at least one perforated line is formed over the entire height of the page. At least one printed column, along with its at least one information field, can be completely separated from the remaining part of the page via a separation process to be performed along a single such perforated line. The perforated line to be used to execute the separation process extends through a pictogram that is situated along both sides of this perforated line. The pictogram visualizes the position of this perforated line. A longitudinal perforation device for a web-fed rotary printing press can be used to produce this page and has at least one perforating blade for generating the perforated line. The longitudinal perforation device is configured as an autonomous module.

Abstract: A process for haemodialysis, includes providing a dialyzer utilizing an electromagnetically controllable double membrane pump, whereby the membranes are each supported against an incompressible liquid during the stroke movement of a pump piston. The process includes filling the space between the membranes with the incompressible liquid, stroking the piston thereby sucking deaerated fresh dialysate through an opening in a front cover plate and into a first swept space bounded by one membrane and the front cover plate while simultaneously discharging used dialysate through an opening in a second cover plate and out of a second swept space bounded by the other membrane and the second cover plate. The pump piston then strokes to the other end of its range thereby discharging the fresh dialysate through another opening of the front end cover plate, and sucking used dialysate through another opening of the second cover plate.