A novel control strategy for synchronization control for network systems with communication constraints is presented in this paper. The dynamics of nodes in the network are nonidentical. The communication topology of network is weakly connected with communication constraints. The designed distributed controller for each node has two parts: reference generator (RG) and regulator. All RGs adopt the communication channels to exchange local information and track the target trajectory. Meanwhile, regulator can ensure that nonidentical node achieves synchronization with its RG. In order to reduce the communication frequency between node and its regulator, a sampled-date control strategy is utilized. The upper bound of the aperiodic sampling instants is calculated through the small-gain theorem, where the closed-loop system is equivalently formulated as the feedback interconnection of a linear time-invariant system and an integral sampled-data operator. Finally, some simulation results are given to demonstrate the effectiveness of the controller design strategy.
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http://dx.doi.org/10.1109/TNNLS.2018.2885873 | DOI Listing |
Pediatr Blood Cancer
January 2025
Department of Oncology and Hospitalist Medicine Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.
Purpose: To assess the level of moral distress (MD) and perceptions of ethical climate among pediatric hematology/oncology (PHO) nurses and to identify bioethics topics where increased education was desired.
Methods: In this cross-sectional study, we administered the 26-item Swedish Moral Distress Scale-Revised (sMDS-R), specifically revised and validated for pediatric oncology, in conjunction with the Clinical Ethics Needs Assessment Survey (CENAS). Electronic surveys were sent to inpatient and outpatient PHO nurses.
BMC Neurol
January 2025
Graduate School of Physical Education, Myongji University, Mingzhi Road, Churen District, Yongin, 17058, Gyeonggi Province, Republic of Korea.
Background: This study evaluates the comprehensive impact of different exercise interventions on the quality of life in stroke patients through network meta-analysis, aiming to provide scientific evidence for developing more effective rehabilitation programs and improving patients' physical, psychological, and social functions.
Methods: This systematic review, registered in PROSPERO (CRD42024541517) and following PRISMA guidelines, searched multiple databases (PubMed, Web of Science, EMbase, Cochrane, Ebsco) until November 1, 2024. Studies were selected based on the PICOS criteria, including RCTs on stroke and exercise.
ISA Trans
January 2025
University of Science and Technology of China, Hefei 230027, China. Electronic address:
This paper investigates the self-triggered control for stabilizing an n-dimensional linear time-invariant system under communication constraints, including finite bit rates and transmission delay. The concerned system is further perturbed by bounded process noise. To resolve these issues, a self-triggering strategy is proposed.
View Article and Find Full Text PDFIntegr Zool
January 2025
Animal Behaviour Group, Department of Environment and Genetics, La Trobe University, Melbourne, Victoria, Australia.
Animal signals are complex, comprising multiple components influenced by ecological factors and viewing perspectives that together impact their overall effectiveness. Our study explores how these factors affect the efficacy of multi-component signals in the Qinghai toad-headed agama, Phrynocephalus vlangalii. Using 3D animations, we simulated natural environments to evaluate how tail coiling and tail lashing-two primary tail displays-vary in effectiveness from both conspecific and predator perspectives under different ecological conditions.
View Article and Find Full Text PDFJ Med Internet Res
January 2025
College of Nursing, Yonsei University, Seoul, Republic of Korea.
Background: Early intervention during the first 3 years of life is crucial for children with developmental disabilities to optimize developmental outcomes. However, access to such services is often limited by geographical distance and resource constraints. Telehealth can be part of a solution for overcoming these barriers, enabling the delivery of early intervention services.
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