introduction: management is one of the most important factors for life, development, growth or death of any organizations including hospitals. the power is of one of the main concepts that by focusing on the fundamental and theoretical efforts considered as an important factor at all levels of management and human resources. managers who know the sources of power and are using them, have more e...

collaboration networks are the basis of development of social knowledge domains. a co-authorship network includes a set of people connected to each other because of their cooperation in publication of articles and thus create a huge graph.this study has analyzed co-authorship papers of civilica, islamic world science citation center (isc), scientific information database (sid) and science direc...