Strengthening executive constraints is one of the key means of improving political governance. This paper examines how such reforms are related to threats to the tenure of ruling political incumbents. We formalize this idea theoretically and test it empirically, using data on leaders since 1875. Specifically, we distinguish leaders with different degrees of resilience as leaders who die from na...

We developed a model predicting that leaders are most effective in stimulating follower cooperation when they consistently treat all group members in a fair manner and are prototypical (i.e., representative of the group's values and norms). In support of this idea, we consistently found that group members cooperated most when prototypical leaders treated themselves as well as their coworkers fa...

Employee radical creativity critically depends on substantive informational resources from others across the wider organization. We propose that the social network ties of employees' immediate leaders assume a central role in garnering these resources, thereby fostering their employees' radical creativity both independent of and interactively with employees' own network ties. Drawing on data fr...

Nonlinear contraction theory allows surprisingly simple analysis of synchronisation phenomena in distributed networks of coupled nonlinear elements. The key idea is the construction of a virtual contracting system whose particular solutions include the individual subsystems’ states. We also study the role, in both nature and system design, of co-existing “power” leaders, to which the networks s...

In this paper we consider some of the basic design principles that should support the development of future DRM systems. We begin by discussing some of the problems associated with current DRM environments, and how they might be alleviated through the adoption of an open architectural framework based on basic design principles. We then demonstrate a particular implementation referred to as the ...

  One of the dimensions of human life is its socio-political aspect. In this regard an important issue is the view of Islam towards the formation of government at the age of occultation. Referring to certain traditions, some believe that any kind of uprising and revolution prior to the emergence of Hazrat Qaem (Aj.) will be unlawful and add, “Any flag which is raised prior to the emergenc...

meaning of islamic unity in two internal & external levels of diplomatic idea of islam has superior place. present situation of world of islam and various devilish plots for provoking disputes and enmity among the muslims shows well the necessity of this issue. undoubtedly, the survey of valuable experience of leaders of islamic world unity at present age, especially survey of seyed jamal al-di...

Communicating answer set programming is a framework to represent and reason about the combined knowledge of multiple agents using the idea of stable models. The semantics and expressiveness of this framework crucially depends on the nature of the communication mechanism that is adopted. The communication mechanism we introduce in this paper allows us to focus on a sequence of programs, where ea...

The literature on teacher-leadership suggests that the notion has developed over time and some have argued that this development comprises three stages or ‘waves’ that progressively de-link the idea from the formal organizational hierarchy. The third wave emphasizes that teacher-leadership is a process rather than a positional concept and notes that \teacher-leaders tend to possess many of the ...

WPaxos is a multileader Paxos protocol that provides low-latency and high-throughput consensus across widearea network (WAN) deployments. Unlike statically partitioned multiple Paxos deployments, WPaxos perpetually adapts to the changing access locality through object stealing. Multiple concurrent leaders coinciding in different zones steal ownership of objects from each other using phase-1 of ...