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Yishan Ding

As seen in: Wiley Online Library, Frontiers in Public Health

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Articles

Combined effects of apparent low temperature and PM 2.5 pollution on circulatory emergency ambulance calls: a time-series analysis in Shijiazhuang, China

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By Siyuan Chen, Mengna Li, Yishan Ding, Ning Xu, Mingyang Guan, Fengge Chen, Junwang Tong
| Frontiers in Public Health Verified
Abstract Background: The health impacts of compound environmental exposures, particularly the joint effects of low temperature and air pollution, remain insufficiently understood. Objective: This study aimed to evaluate the independent and joint effects of apparent low temperature (AT) and PM2.5 on cardiovascular emergency ambulance calls (EACs). Methods: Daily cardiovascular emergency ambulance calls (EACs), meteorological, and air pollution data in Shijiazhuang, China (2014–2023) were analyzed.
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A Group Fit Statistic for the Multilevel Item Response Model

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By Yishan Ding, Ji Yang, Youngjin Han
| Wiley Online Library Verified
Introduction Person-level misfit refers to the aberrant behavior or unusual response pattern by a single test-taker. Although test aberrance might arise from various issues and manifest in a multitude of diverse response outcomes, two types have drawn the most scholarly interest: careless responses stemming from a lack of motivation (Patton et al., 2019) and spuriously higher than expected scores indicative of cheating (De La Torre & Deng, 2008; Wang et al., 2017).
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