This paper proposes a passivity theorem on the basis of French Door Closing Bar Spring energy concepts to study the stability of force feedback in a virtual haptic system.An impedance-passivity controller (IPC) was designed from the two-port network perspective to improve the chief drawback of haptic systems, namely the considerable time required t

We consider the problem of constructing generic supporting hyperplanes to be used within a (branch and) bound-and-cut algorithm.We review some of the properties that these hyperplanes should enjoy.It is generally admitted that they should cut a parasitic point generated during the process.We argue that the advantages of restricting supports to cuts

Women are underrepresented in many areas of journalistic newsrooms.In this paper, we examine if this established effect persists in the new forms of journalistic communication, namely social media networks.We use mentions, retweets, and hashtags as measures of journalistic amplification and legitimation.Furthermore, we compare two groups of journal