https://www.selleckchem.com/products/lb-100.html Ever since the outbreak of the coronavirus disease (COVID-19), people have been flooded with vast amounts of information related to the virus and its social consequences. This paper draws on social amplification theory and the extended parallel process model (EPPM) and assesses the following (a) how two amplification stations-news media and peoples' personal networks-influence the risk-related perceptions of people (perceived efficacy and perceived threat) and (b) how these risk-related perceptions impact people's health-protective behaviors. This study surveyed 1,946 participants. The results indicate that peoples' exposure to news media significantly and positively predicted both perceived efficacy and perceived threat. It also shows that peoples' exposure to risk-related information through their personal networks negatively predicted their perceived efficacy, but it positively predicted their perceived threat. The mediating effect of fear was examined, and the result was contradictory to the EPPM. In short, this study reveals the underlying mechanism of individuals' exposure to risk information, processing, and precautionary measures.How to motivate employees to break through the role constraints and show more initiative determines the success or failure of a company's future development. Taking charge behavior refers to the behavior where individuals influence the change of organizational function through voluntary and constructive efforts, which is a challenging organizational citizenship behavior. This study investigates the underlying mechanism and boundary condition of authentic leadership (AL) on employees' taking charge behavior based on the role identity theory and literature concerning perspective taking. Matched data were collected from a multi-source sample that included 146 direct supervisors and 328 subordinates in mainland, China. The empirical results indicate that AL has a positive influence on the