Data-driven optimal cooperative tracking control for heterogeneous multi-agent systems.

This paper presents a novel hierarchical control scheme for solving the data-driven optimal cooperative tracking control problem of heterogeneous multi-agent systems. Considering that followers cannot communicate with the leader, a prescribed-time fully distributed observer is devised to estimate the leader's state for each follower. Then, the data-driven decentralized controller is designed to ensure that the follower's output can track the leader's one.

[Physical growth and dietary characteristics of children with attention deficit hyperactivity disorder: a cross-sectional study].

Objectives: To investigate the physical growth and dietary characteristics of children with attention deficit hyperactivity disorder (ADHD), and to analyze their relationship with core symptoms of ADHD.

Methods: A total of 268 children who were newly diagnosed with ADHD in Children's Hospital of Nanjing Medical University from June to December 2020 were included in the ADHD group, and 102 healthy children who underwent physical examination during the same period were selected as the control group. Physical evaluations and dietary surveys were conducted for both groups.

Diagnosis and genetic analysis of a case with mandibuloacral dysplasia type B due to compound heterozygous mutations of the gene.

Mandibuloacral dysplasia (MAD) is a rare autosomal recessive disorder, mainly caused by pathogenic variants of the and genes. In this study, we reported the first case of a patient with type B cranial and mandibular dysplasia in China. The patient presented with distinctive facial features, feeding difficulties, significant physical retardation, and overall developmental delay with abnormal tooth and bone development.