An object of the present invention is to provide an adhesion-preventing material which is capable of effectively preventing the surfaces of organs from adhesion, and which can be absorbed in the body with high safety and produced with ease and has high practical utility, as well as to a process for preventing adhesion by using the adhesion-preventing material. The present invention enables a user to see at a glance in which queries certain columns and tables are used. The resulting products will contain antimicrobial preparations distributed throughout the material or coated with the antimicrobial preparations to inhibit the growth of microbes on exterior surfaces and interior regions of the building material. Further processing includes, among other things, keeping a total count of errors, keeping a count of single occurring errors, keeping a count of multiple occurring errors. The display device is especially suitable for miniature helmets such as pocket sized football helmets.