Abstract: Method for reducing the pollutant emissions of internal combustion engines, wherein an aqueous solution containing glyoxal and a polymer product of citric acid and glycerol is added as an additive, additive for reducing the pollutant emissions of internal combustion engines, said additive consisting of an aqueous solution containing glyoxal and a polymer product of citric acid and glycerol, and the use thereof for reducing pollutant emissions.

Abstract: The present invention relates to a whole-blood culture containing specific immunocompetent killer cells that are activated against tumor cells, viruses, bacteria and/or allergens, whereby the whole-blood culture consists of whole-blood and a culture medium at a ratio of 3:1 to 4:1, whereby the culture medium has an oxygen excess of at least 100% or more and contains a water-soluble emulsification product comprising a mixture of phospholipids, vitamin E, and low-molecular proteoglycans with a molecular weight of 1,200 to 12,000 Dalton, and whereby dead tumor cells or fragments thereof and/or viral and/or bacterial antigens and/or allergens have been added to the whole-blood culture [to serve] as antigen in the specific recognition process for production of the activated killer cells (stimulation). The invention also relates to a method for producing the culture, as well as stimulants for the whole-blood culture and a method for the selection thereof.