Mechanisms that control cell-cycle dynamics during tissue regeneration require elucidation. Here we find in zebrafish that regeneration of the epicardium, the mesothelial covering of the heart, is mediated by two phenotypically distinct epicardial cell subpopulations. These include a front of large, multinucleate leader cells, trailed by follower cells that divide to produce small, mononucleate...

In this paper, we adopt D-type and PD-type learning laws with the initial state of iteration to achieve uniform tracking problem multi-agent systems subjected impulsive input. For system impulse, show that all agents are driven a given asymptotical consensus as number increases via proposed if virtual leader has path any follower agent. Finally, an example is illustrated verify effectiveness by...

This contribution deals with a two-level discrete decision problem, a so-called Stackelberg strategic game: A Subset Sum setting is addressed with a set $N$ of items with given integer weights. One distinguished player, the leader, may alter the weights of the items in a given subset $L\subset N$, and a second player, the follower, selects a solution $A\subseteq N$ in order to utilize a bounded...

Acoustically interacting males of the tropical katydid Mecopoda elongata synchronize their chirps imperfectly, so that one male calls consistently earlier in time than the other. In choice situations, females prefer the leader signal, and it has been suggested that a neuronal mechanism based on directional hearing may be responsible for the asymmetric, stronger representation of the leader sign...

High-speed auto-reclosing is used in power system protection schemes to ensure the stability and reliability of the transmission system; leader-follower auto-reclosing is one scheme type that is widely used. However, when a leader-follower reclosing scheme responds to a permanent fault that affects a transmission line in the proximity of a generation plant, the reclosing directly impacts the tu...

Charisma is a fire that ignites followers’ energy, commitment, and performance. Charisma resides not in a leader, nor in a follower, but in the relationship between a leader who has charismatic qualities and a follower who is open to charisma, within a charisma-conducive environment. When a leader shares charismatic relationships with all of his or her subordinates, charisma is homogeneous-a ra...

Raft is a fast, scalable, understandable consensus algorithm widely used in distributed systems. The Leader handles client requests and interacts with other servers to reach consensus, so stable, reliable, powerful crucial for the cluster. We designed policy-based voting mechanism make elected as reliable possible. In order improve asymmetric relationship between Followers Leader, we trigger ne...

In this article, we study multiagent consensus problems under Denial-of-Service (DoS) attacks with data rate constraints. We first consider the leaderless problem and after that briefly present analysis of leader–follower consensus. The dynamics agents take general forms modeled as homogeneous linear time-invariant systems. our analysis, derive lower bounds on for systems to achieve in presence...

In this article, we consider the linear-quadratic time-inconsistent mean-field type leader-follower Stackelberg differential game with an adapted open-loop information structure. The objective functionals of leader and follower include conditional expectations state control (mean field) variables, cost parameters could be general nonexponential discounting depending on initial time. As stated i...

This paper will consider the control of spacecraft in a leader-follower formation using attitude measurements only. To analyze the formation under non vanishing disturbances, the concept of uniform practical exponential stability is defined. To ease the Lyapunov analysis a new theorem is provided, giving sufficient conditions for systems that present a cascaded structure to satisfy this definit...