6. Conclusion
The main issue addressed in this paper is the relation between the role of the departments and its relation to interdisciplinarity in terms of knowledge creation at the interpersonal level. More specifically, the focus was to understand the conditions under which similarity or tie strength matters for individual knowledge interdisciplinarity. It was hypothesized that the social networks of researchers echo processes of personal and institutional adaptation, resistance, hindrance or enhancement of interdisciplinarity research. Egonetwork analysis proved to be a suitable contribution to the understanding of interdisciplinarity in today's universities. It is argued that the reach of these networks is not just a function of their distributed, interconnected and global nature but of the fact that the character and nature of ego networks mean that it is able to create and develop spaces and opportunities for emergent forms of knowledge and scientific research. That said, the potential of personal networks is not fully accomplished due to institutional constraints. One evidence is the fact that belonging to a faculty department increases the strength of ties, but belonging to a department decreases interdisciplinarity.