Multicenter study of seasonal and regional airborne allergens in Chinese preschoolers with allergic rhinitis.

This study is nationwide multicenter epidemiological research, aimed at investigating the distribution changes and seasonal patterns of various airborne allergens among preschool children with allergic rhinitis (AR) in different regions of China, and analyzing the clinical correlation between sensitization to various airborne allergens and AR symptoms in children. Information on children was collected through standard questionnaires, and total IgE (tIgE) and specific IgE (sIgE) for 11 inhalant allergens were tested. The results showed that dust mites are the primary allergens for preschool AR children (39%).

Specific Immunotherapy and Follow-up Management of Respiratory Allergic Diseases in Children.

Objective: To analyze specific immunotherapy and follow-up management for respiratory allergic diseases in children.

Methods: A total of 100 children with allergic bronchial asthma admitted to our hospital from November 2020 to October 2021 were selected. Based on different treatment schemes, they were divided into two groups: the routine treatment group and the immunotherapy group, with 50 cases in each group.

Aryl-substituted-indanone end-capped nonfullerene acceptors for organic solar cells with a low nonradiative loss.

Three nonfullerene acceptors with different aryl-substituted terminal groups were designed and synthesized. The optimal device obtained a PCE of 11.42%, with a nonradiative energy loss ≤0.

π-Extended Nonfullerene Acceptors for Efficient Organic Solar Cells with a High Open-Circuit Voltage of 0.94 V and a Low Energy Loss of 0.49 eV.

A combination of high open-circuit voltage () and short-circuit current density () typically creates effective organic solar cells (OSCs). Y5, a member of the Y-series acceptors, can achieve high of 0.94 V with PM6 but low of 12.