Effective teamwork and knowledge coordination are becoming increasingly important for all kinds of organizations given the growing use of teams to tackle competitive challenges and sustain competitive advantage. In this study, we develop and validate a model of how two types of social network ties expressive and instrumental contribute first to three dimensions of a transactive memory system (T...

The aims of this study were to investigate (a) the role of peer factors in adolescents’ sexual self-presentation on social network sites, and (b) how adolescents who present themselves sexually online are evaluated by others. 238 high school students (aged 12–18) evaluated either a sexual or non-sexual online presentation of same-sex and opposite-sex peers. Moreover, they filled in a questionna...

W describe a new algorithm for computing the efficient frontier of the “bi-objective maximum-flow network-interdiction problem.” In this problem, an “interdictor” seeks to interdict (destroy) a set of arcs in a capacitated network that are Pareto-optimal with respect to two objectives, minimizing total interdiction cost and minimizing maximum flow. The algorithm identifies these solutions throu...

The research goal of this paper is to identify major academic branches and to detect research trends in design research using text mining techniques. In this paper, the information about scientific literature in design research isprocessed. A combination of clustering and bibliometric analysis led to shaping four academic branches and summarizing each academic branch. Then, research trends and ...

This paper presents an innovative approach to maximally disconnect a given network. More specifically, this work introduces the concept of a critical disruption path, a path between a source and a destination vertex whose deletion minimizes the cardinality of the largest remaining connected component. Network interdiction models seek to optimally disrupt network operations. Existing interdictio...

Using deconvolution microscopy, we visualized in real time fibrin network formation in the hydrated state. Individual mobile fibers were observed before the gel point determined by eye. After gelation, an initial fibrin network was seen, which evolved over time by addition of new fibers and elongation and branching of others. Furthermore, some fibers in the network moved for a time. We quantifi...

We present a new approach to the problem of logical topology reconfiguration in congested WDM networks using simulation-based multi-time scale Markov Decision Processes (MDP). Previous work considered total reconfiguration of the network, branch exchanges or addition and deletion of lightpaths when the traffic pattern changes. However, the special case when all or part of the network is congest...

The purpose of this study was to explore the feasibility of developing artificial neural networks that are able to provide confidence measures for their diagnostic advice. Computer-aided decision making can improve physician performance, but many physicians hesitate to use these 'black boxes'. If we are to rely upon decision support systems for such tasks as medical diagnosis it is essential th...

The dendritic actin network generated by the Arp2/3 complex in lamellipodia underlies formation of protrusions, directional sensing, and migration. While the generation of this network is well studied, the mechanisms regulating network disassembly are poorly understood. We report that Coronin 1B disassembles Arp2/3-containing actin filament branches by inducing Arp2/3 dissociation. This activit...