2016-03-042016-03-04200584-609-6771-9http://hdl.handle.net/11441/36857We continue here the attempt to bridge brane calculi with membrane com- puting, following the investigation started in. Specifically, we consider P systems with objects placed on the membranes, and processed by membrane operations. The operations used in this paper are membrane creation (cre), and membrane dissolution (dis), defined in a way which reminds the operations pino, exo from a brane calculus from. For P systems based on these operations we prove the universality, for one of the two possible variants of the operations; for the other variant the problem remains open.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess