Using data from the China Social Survey 2013 and statistics from the Ministry of Environment Protection of China and the Institute of Public & Environment Affairs, this study empirically examines the relationship between actual and perceived air pollution and the moderating effect of environmental transparency on that relationship with a multilevel ordered logistic strategy. Estimations indicate a significant congruence of actual (both particulate matter less than 10 µm in diameter and sulfur dioxide) and perceived air pollution. More importantly, environmental transparency of local government is found to moderate the relationship between actual and perceived air pollution by neutralizing the halo effects and building more alert perceptions when local air quality deteriorates. Our findings not only challenge the work of identifying a mismatch of actual–perceived air pollution in some developed countries but also suggest that, apart from abating actual air pollution, environmental transparency should be emphasized and strengthened in institutional buildings to help address pollution challenges in developing countries.
As China’s one-child policy is replaced by the two-child policy, young Chinese women and their spouses are increasingly concerned about who will take care of the ‘second child.’ Due to the absence of public childcare services and the rising cost of privatised care services in China, childcare provision mainly relies on families, such that working women’s choices of childbirth, childcare and employment are heavily constrained. To deal with structural barriers, young urban mothers mobilise grandmothers as joint caregivers. Based on interviews with Guangzhou middle-class families, this study examines the impact of childcare policy reform since 1978 on childbirth and childcare choices of women. It illustrates the longstanding contributions and struggles of women, particularly grandmothers, engaged in childcare. It also shows that intergenerational parenting involves a set of practices of intergenerational intimacy embedded in material conditions, practical acts of care, moral values and power dynamics. We argue that the liberation, to some extent, of young Chinese mothers from childcare is at the expense of considerable unpaid care work from grandmothers rather than being driven by increased public care services and improved gender equality in domestic labour. Given the significant stress and seriously constrained choices in later life that childcare imposes, grandmothers now become reluctant to help rear a second grandchild. This situation calls for changes in family policies to increase the supply of affordable and good-quality childcare services, enhance job security in the labour market, provide supportive services to grandmothers and, most importantly, prioritise the wellbeing of women and families over national goals.
A set of LR (light rail) transit O&M (operation and maintenance) cost models were derived as functions of system attributes, namely Directional-Route-Miles, Train-Revenue-Hours, Train-Revenue-Miles, Peak Passenger Cars and Annual Passenger Trips. These models were developed based on the data of 12 LR facilities in the United States from 2004~2008 reported on the National Transit Database. The models were then validated with newer data of the same systems from 2009~2011. Instead of using the traditional R-squared, NSE (Nash-Sutcliffe efficiency) was employed for model selection. Furthermore, MEF (model efficiency factor) indicators were used to validate model's performance. When compared to the actual data, the prediction ability of these new models was superior to those of previously developed PFM (power factor models).
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