Research history and status quo of physician-nurse relationship;

Study physician-nurse relationship from history review and investigation in order to understand the status quo and find the problems of physician-nurse relationship, determine influencing factors of it,propose countermeasures for building a harmonious physician-nurse relationship.

Application of game theory in coordinating doctor-nurse relationship;

The significance of improving and building a new doctor-nurse relationship

Objective To examine the discrepancy in the evaluation of the doctor-nurse relationship between doctors and nurses.

Discussing the role relationships in the filmic text from conversational strategies;

On the "Humanization of Role Relationship" ——An Description and Judgment of Chinese Interpersonal Communication;

Social Role Relationship of Chinese Contemporary Countryside;

A new role hierarchy model for RBAC (role-based access control) is presented and its features are illustrated through examples.

Combined with the issues of private permissions, department permissions and changes of permission types, subjects of role permissions and role hierarchies are analyzed in more depth and an improved role hierarchy model for role based access control (RBAC) is introduced against the imperfections of the famous RBAC96 model.

Based on the above ideas,an improved role hierarchy model is formulated.

Through the discussion of role partial ordered relation and administer field the usability and security of this design scheme are proved.