Environmental regulation and mental well-being: Evidence from China's air pollution prevention and control action plan.

This study investigates how enhanced environmental regulation can improve individuals' mental well-being, focusing on the impact of China's so far most stringent air pollution control policy, the 2013 Air Pollution Prevention and Control Action Plan (APPCAP). Exploiting variations in timing and regions of the implementation of the policy, we find that the APPCAP has significantly improved people's mental well-being. We test several potential socio-economic channels including reduced air pollution, enhanced environmental awareness, improved physical health, and decreased physical activities during periods of heavy pollution, through which environmental regulation may affect mental well-being.

Crystal structures and kinetic studies of a laboratory evolved aldehyde reductase explain the dramatic shift of its new substrate specificity.

The Fe-dependent E. coli enzyme FucO catalyzes the reversible interconversion of short-chain (S)-lactaldehyde and (S)-1,2-propanediol, using NADH and NAD as cofactors, respectively. Laboratory-directed evolution experiments have been carried out previously using phenylacetaldehyde as the substrate for screening catalytic activity with bulky substrates, which are very poorly reduced by wild-type FucO.

Offspring migration and nutritional status of left-behind older adults in rural China.

Improvements in nutritional status is a principal pathway to good health. This study examines the effect of migration of adult children on the nutrient intake of left-behind older adults in rural China. We use data from four waves (2004-2011) of the China Health and Nutrition Survey and utilize individual fixed effects methods to panel data.

Life cycle development of obesity and its determinants in six European countries.

This paper empirically examines the effect of parents' and individuals' own socioeconomic status on overweight and obesity, and investigates how this effect changes over the life cycle. The impact of individuals' health behaviours on their obesity status later in life is also studied. We use data from Denmark, Finland, France, Greece, the Netherlands and the U.