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Nonlinear associations of the built environment with cycling frequency among older adults in Zhongshan, China

The health and welfare of older adults have raised increasing attention due to global aging. Cycling is a physical activity and mode of transportation to enhance the mobility and quality of life among older adults. Nevertheless, the planning strategies to promote cycling among older adults are underutilized. Therefore, this paper describes the nonlinear associations of the built environment with c

Change patterns of sleep problems predict mental health problems among adolescents : a 10-year cohort study of Chinese Wenchuan earthquake

Background: The predictive effects of change patterns of sleep problems on mental health after a long-term disaster remain poorly known. We examined the change patterns of sleep problems after the Wenchuan earthquake, and tested whether specific sleep-related change patterns could predict mental health problems (posttraumatic stress disorder [PTSD], anxiety, and depression) in the 10 years after W

Water and related electrical energy use in urban households—Influence of individual attributes in Beijing, China

Water and energy are intricately connected in households. The connections mainly appear in three types of residential behavior: bathing, cooking, and cleaning. This study investigated the features of water and related energy consumption in groups with different individual attributes and identified the key groups and types of behavior that correlate with water and energy conservation. A face-to-fac

Petrogenesis of Paleo-Mesoproterozoic mafic rocks in the southwestern Yangtze Block of South China : Implications for tectonic evolution and paleogeographic reconstruction

Three episodes of mafic magmatism are identified by zircon and baddeleyite U-Pb dating at 2299 ± 17 Ma, 1703 ± 8 Ma and 1511 ± 14 Ma in the southwestern Yangtze Block. These mafic rocks have tholeiitic compositions with enrichment of LILE but an absence of Nb, Ta, Zr, Hf anomalies, features similar to E-MORB. They have La/Ta (<22) and La/Nb (<1.5) ratios similar to asthenosphere-derived mafic melt