[Spatiotemporal Variation and Influencing Factors of Atmospheric Aerosol in the Middle Region of the Yarlung Zangbo River Basin from 2000 to 2020].

Based on the aerosol optical depth （AOD） of the MODIS MCD19A2 dataset from 2000 to 2020, combined with meteorological data, land use/land cover data, and socio-economic data, the spatiotemporal distribution of AOD in the middle region of the Yarlung Zangbo River Basin was analyzed using STL and Theil-Sen Median trend estimation and the influence of natural and anthropogenic factors on AOD was revealed using GeoDetector, XGBoost model and SHAP analysis. The results showed that the spatial heterogeneity of AOD in the middle region of the Yarlung Zangbo River Basin was obvious, which was mainly controlled by topography, with high AOD value concentrated in the valley with the altitude lower than 4 300 m. Owing to the precipitation and surface wind speed, the seasonal difference of AOD was obvious, with the highest in winter.

Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China.

In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Muztagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups sp.

[Status quo and characteristics of blood pressure among children and adolescents aged 7-17 years at normal weight but with abdominal obesity, in Shandong province].

Objective: To study the prevalence and characteristics of blood pressure (BP) among children and adolescents at normal weight but with abdominal obesity.

Methods: Using data from the 'Student physical fitness and health surveillance 2010 project' in Shandong province, a total of 38 816 students aged 7-17 years were selected to participate in this study. Stature, body weight, waist circumference(WC), systolic blood pressure(SBP)and diastolic blood pressure(DBP) of these subjects were measured.

Comparison on physical activity among adolescents with different weight status in Shandong, China.

The present study examined the prevalence of underweight, overweight and obesity among adolescents and compared the attitudes and behaviors of physical activity (PA) among adolescents with different weight status in Shandong, China. A total of 19 523 students (9784 boys and 9739 girls) aged 13-18 years participated in this study. Height and weight of all subjects were measured, body mass index of adolescents was calculated from their height and weight, and the prevalence of overweight and obesity were obtained according to the International Obesity Task Force cut-offs.