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This article investigates a penalty-based distributed optimization algorithm of bipartite containment control for high-order nonlinear uncertain multi-agent systems with state constraints. The proposed method addresses the distributed optimization problem by designing a penalty function in the form of a quadratic function, which is the sum of the global objective function and the consensus constraint. Moreover, the observer is presented to address the unmeasurable state of each agent. Radial basis function neural networks (RBFNN) are employed to approximate the unknown nonlinear functions. Then, by integrating RBFNN and dynamic surface control (DSC) techniques, an adaptive backstepping controller based on the barrier Lyapunov function (BLF) is proposed. Finally, the effectiveness of the suggested control strategy is verified under the condition that the state constraints are not broken. Simulation results indicate that the output trajectories of all agents remain within the upper and lower boundaries, converging asymptotically to the global optimal signal.
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http://dx.doi.org/10.3934/mbe.2023770 | DOI Listing |
Chem Asian J
September 2025
School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China.
Molecules that exhibit excited-state intramolecular proton transfer (ESIPT) have demonstrated great promise in fluorescent probes. The electronic effect of substituents has an important influence on the ESIPT process. In this study, we investigated the effects of substituents on the ESIPT mechanism and the photophysical behavior of single-benzene fluorophore (SBF) derivatives with computational chemistry methods.
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Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.
Synthetic biology often employs heterologous enzymatic reactions to reprogram cell metabolism or otherwise introduce novel functions. However, precise control of a particular metabolic pathway can be difficult to achieve because cofactors are shared with endogenous enzymes from a common pool. Recently, the use of noncanonical cofactors (NCCs) has emerged as a promising approach to bypass this problem by isolating desired reactions without the need for a physical barrier.
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Penn State Milton S. Hershey Medical Center, Hershey, PA, USA.
Polytrauma patients are defined by the Berlin Consensus as those with severe injuries across multiple regions and require complex, adaptable treatment approaches to address both immediate and long-term needs of the patient, while considering the resource availability. This review evaluates early total care (ETC), which attempts early definitive fixation, against damage control orthopedics (DCO), which focuses on temporary stabilization to reduce physiological strain from surgery. While ETC promotes early mobilization, DCO reduces risks and subsequent complications associated with the "second hit" phenomenon in critically ill patients.
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September 2025
Department of Crop Science, Federal University of Santa Maria, Santa Maria, Brazil.
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August 2025
Community Medicine Management, Shimane University, Izumo, JPN.
This systematic review synthesized findings from 17 studies conducted between 2000 and 2024, focusing on the definitions, interventions, and outcomes associated with community nursing. The studies originated from diverse countries, including Singapore, Australia, Italy, Portugal, and the United States, and employed various designs such as quasi-experimental trials, pre-post evaluations, and descriptive studies. Sample sizes ranged from 23 to over 1,600 participants, with most targeting older adults or individuals with chronic conditions.
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