context:  medical waste(mw) is all waste materials generated at health care facilities. mw mw naturally is hazardous for environment and subsequently for human.waste minimization (wm) is the latest alternative for risk reduction. all hospital staff generally and nurses specially can play an active role through education and the implementation of measures to reduce medical wastage and their envi...

A new approach is proposed for finding the ”best cut” in a hierarchy of partitions by energy minimization. Said energy must be ”climbing” i.e. it must be hierarchically and scale increasing. It encompasses separable energies and those composed under supremum.

Article history: Received 27 May 2011 Received in revised form 2 December 2011 Accepted 5 December 2011 Available online 7 December 2011 Communicated by J. Torán