Negotiation events in industrial procurement involving multiple, highly customisable goods pose serious challenges to buying agents when trying to determine the best set of providing agents’ offers. Typically, a buying agent’s decision involves a large variety of constraints that may involve attributes of a very same item as well as attributes of different, multiple items. In this paper we pres...

The present study aims at investigating the role of risk in the activity of independent technological venturing. Altogether 12 deep-interviews were conducted with technological entrepreneurs, who had taken part in the inventive, developmental and the commercialisation phases of a technologybased innovation process. The interviews revealed a number of enactment approaches through which these inn...

In the paper we study the dynamics of roles played by agents in multiagent systems. We capture role dynamics in terms of four operation performed by agents: ‘enactment’, ‘deactment’, ‘activate’, and ‘deactivate’. The use of these operations are motivated, in particular for open systems. A formal semantics for these operations are provided. This formalization is aimed at serving as a basis for i...

The Meditation Chamber is a novel combination of immersive virtual reality (VR) and biofeedback technologies. Its primary goal is to help users lower their stress levels through meditation and muscle relaxation. Its secondary goal is to enable users who have never meditated to gain real-time feedback that allows them to sense when they are indeed lowering the physiological states that are indic...

The emergence of Cloud Computing raises the question of dynamically allocating resources of physical (PM) and virtual machines (VM) in an on-demand and autonomic way. Yet, using Cloud Computing infrastructures efficiently requires fulfilling three partially contradicting goals: first, achieving low violation rates of Service Level Agreements (SLA) that define non-functional goals between the Cl...

abstract background: the aim of this study was to investigate the modelling of different processes that could account for the link between psychopathology, cognitive social and demographic risk factors and enacting assault by husband. method: this article reports a test using data on 230 males who participated in a family violence survey study. the sample was selected by a multiclustral samplin...

In this paper, we present the results of a study that examines role data in nonprofit advocacy work. We conducted semi-structured interviews with 25 individuals who play critical roles work 18 different organizations. Our analysis reveals five key stakeholders work-beneficiaries, policymakers, funding and partner organizations, gatekeepers, local publics. It also contributes framework four func...