Publications by authors named "Shengqiang Yuan"
Article Synopsis
- Walking is essential for the physical activity of older adults, yet there is limited research on how the built environment affects walking duration across different age groups and life stages.
- This study analyzes data from Zhongshan, China, using gradient boosting decision trees to understand the impact of the built environment on walking habits among older adults, particularly focusing on age and retirement status.
- Results indicate that the built environment significantly influences walking duration, with varying effects based on age—such as bus stop density being critical for young-olds and a mix of factors important for old-olds, highlighting the need for tailored interventions to enhance walkability for different older adult subgroups.*
Selected trace elements (As, Cr, Zn, Cu, Cd, Co, Pb and Ni) in 76 surface sediment samples collected from the rivers and the intertidal zone of Jiaozhou Bay (JZB) were evaluated to assess their environmental background values in the JZB catchment. Overall, the sediment quality in the area meets the China Marine Sediment Quality criteria. The background values (ranges) of the elements As, Cr, Zn, Cu, Cd, Co, Pb and Ni were, respectively, 8.
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