Multi-Agent Hierarchical Graph Attention Actor-Critic Reinforcement Learning.

Multi-agent systems often face challenges such as elevated communication demands, intricate interactions, and difficulties in transferability. To address the issues of complex information interaction and model scalability, we propose an innovative hierarchical graph attention actor-critic reinforcement learning method. This method naturally models the interactions within a multi-agent system as a graph, employing hierarchical graph attention to capture the complex cooperative and competitive relationships among agents, thereby enhancing their adaptability to dynamic environments.

Preliminary study on the correlation between thyroid magnetic resonance parameters and radiation dose after radiotherapy for nasopharyngeal carcinoma.

Background: Hypothyroidism is a common sequela after radiotherapy for nasopharyngeal carcinoma (NPC). Magnetic resonance imaging (MRI) has gained prominence in thyroid imaging, leveraging its non-ionizing radiation, high spatial resolution, multiparameter and multidirectional imaging. Few previous studies have investigated the evaluation of radiation-induced thyroid injury by MRI.

Associations of Retinal Microvascular Density and Fractal Dimension with Glaucoma: A Prospective Study from UK Biobank.

Objective: To explore the association between retinal microvascular parameters and glaucoma.

Design: Prospective study.

Subjects: The UK Biobank subjects with fundus images and without a history of glaucoma.

[Correctly performing manual subgingival scaling and root planing exercises: part Ⅱ of a series on basic training in periodontal diagnosis and treatment].

Periodontitis constitutes the primary cause of tooth loss among adults in China. The disease is characterized by the high morbidity, which significantly impairs both oral and systemic health. As the key insights of initial periodontal therapy, subgingival scaling and root planing (SRP) have been considered as simple, effective, and cost-efficient treatment approaches for managing periodontal inflammation.

Immunoglobulin E, the potential accelerator of comorbid psoriasis and atherosclerosis.

Immunoglobulin (Ig) E is a key mediator in the induction and maintenance of allergic inflammation, characterized by a Th2-dominated immune response. Recently epidemiological studies have showed that elevated serum total IgE levels or an increased abundance of mast cells (MCs) at the lesion site are observed in psoriatic patients with cardiovascular diseases (CVD), such as atherosclerosis. Although the underlying mechanisms by which IgE synergizing with MCs in promoting these chronic immune-inflammatory diseases remain unclear, the interleukin (IL)-23/IL-17 axis appears to play a crucial role in comorbidity of psoriasis and atherosclerosis.