Results 41 to 50 of about 189,132 (264)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Adaptive Event-Triggered-Based Consensus Control for QUAV Formation System with External Disturbances and State Constraints

Aerospace
In this work, an adaptive event-triggered-based consensus control strategy is proposed for the quadrotor unmanned aerial vehicle (QUAV) formation system in the presence of external disturbances and state constraints. Firstly, the disturbed QUAV formation
Lijun Liu, Tongwei Lu, Guoxiang Hao, Kun Yan, Chaobo Chen   +4 more
doaj   +1 more source

Consensus control of discrete-time heterogeneous multi-agent systems

工程科学学报, 2016
Consensus problems were investigated for discrete-time heterogeneous multi-agent systems composed of first-order agents and second-order agents. Distributed consensus protocols with and without the bound communication delay were respectively designed. By
LIU Cong, ZHOU Qiang, HU Xiao-guang
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Group Formation Tracking Control for Air–Ground Multi-Agent Systems

Guidance, Navigation and Control
This paper presents a weight-based group formation tracking control method for air–ground multi-agent systems, where the system consists of unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs).
Haichao Liu, Juntong Qi, Yan Peng, Yuan Ping, Chong Wu, Mingming Wang, Hailong Huang   +6 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Fixed‐time stability of stochastic nonlinear systems and its application into stochastic multi‐agent systems

IET Control Theory & Applications, 2021
The paper devotes to study fixed‐time stability of stochastic nonlinear systems and fixed‐time consensus of stochastic multi‐agent systems (SMASs). Firstly, a new fixed‐time stability theorem is established and a high‐precise estimation of settling time ...
Jiaju Yu, Shuanghe Yu, Yan Yan
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Third-Order Leader-Following Consensus in a Nonlinear Multiagent Network via Impulsive Control

Abstract and Applied Analysis, 2013
Many facts indicate that the impulsive control method is a finer method, which is simple, efficient, and low in cost, for achieving consensus. In this paper, based on graph theory, Lyapunov stability theory, and matrix theory, a novel impulsive control ...
Xiaomei Li, Zhongjun Ma, Chunhai Li, Jinde Cao   +3 more
doaj   +1 more source

With Habermas against Habermas. Deliberation without Consensus

Journal of Deliberative Democracy, 2019
Habermas’s conception of deliberative democracy combines two concepts—deliberation and consensus—which, I argue, draw his theory in two opposite directions.
Katarzyna Jezierska
doaj   +2 more sources