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This article discusses the impact of air pollutants and meteorological factors on outpatient visits for allergic rhinitis (AR) in Shanghai, China. The study collected data on atmospheric pollutants and meteorological variables from January 2017 to December 2019, as well as clinical visit data from five hospitals during the same period. The results showed that elevated levels of NO2 and O3 were strongly associated with increased hospital visits for AR patients. Additionally, meteorological factors such as temperature, humidity, wind speed, and air pressure also influenced outpatient visits. The study highlights the need for further research to evaluate this association. [Extracted from the article]

Si3N4 ceramics have been attractive casing materials for electronics devices under the 5th generation mobile communication technology because of its outstanding comprehensive properties. However, single color cannot meet the needs of most consumers. Here, a typical strategy, involving forming core‐shell structures by utilizing Nd2O3‐MgO‐YAG system, is proposed to rich color. Scanning transmission electron microscope‐energy dispersive X‐ray spectrometry results confirm the presence of core‐shell structures in the silicon nitride matrix, and the core is pore and the shell is Nd‐enriched liquid phase. The Nd‐rich core‐shell structure as the color center makes the silicon nitride appear cyan or blue. [ABSTRACT FROM AUTHOR]