The aim of this paper is to analyze the impact of environmental regulation on regional environmental Meals efficiency convergence using the fixed effects model and threshold regression model.The results show that the differences in environmental efficiency have a convergence trend in China, as well as in the eastern, central and western regions.The
Renewable energy shares in electricity markets are increasing and therefore also require an increase in flexibility options.Conventional electricity price modelling with optimisation models in thermally dominated markets is not appropriate in markets with high shares of renewable energies and storages because price structures are not adequately rep
A major puzzle in biology is how mammalian sperm maintain the correct swimming direction during various phases of Cleaning Fluid the sexual reproduction process.Whilst chemotaxis may dominate near the ovum, it is unclear which cues guide spermatozoa on their long journey towards the egg.Hypothesized mechanisms range from peristaltic pumping to temp
Family-based solutions for children in care are the preferred option in European countries on the grounds of both cost and quality.Yet, too often, foster care placements intended to be long term are terminated unexpectedly early.Few studies have identified factors leading to unexpected breakdown and fewer still have translated such findings into pr