1999 年 34 巻 p. 187-192
The purpose of this paper is to propose new concepts, "Structures of Interactions" and "Arrangement of noospheres". Based on these concepts, the interaction model and the interaction-distances are checked up. At first, based on phirosophical, psychological, religious knowledges and arrangement of MANDALIA, concepts are interpreted. Then the model is re-formulated. Also four structures of interaction-distances are proposed. The structures are very stable. Consequently, the author insists that the existences of stable structures are the necessary conditions to support efficiency of the interaction model and that the model are efficient to estimate interactions.