In this article, we consider sample data from 30 regions in China 2004 to 2020. We use the entropy method measure high-quality development level, then examine intermediary and threshold effects verify main paths by which green technology innovation mediates relationship between environmental regulation intensity quality of economic development. Our conclusions are as follows: (1) There is a “U”...

The helicene is constructed by twisted benzene or other aromatic rings, exhibiting a helical structure. Using first-principles calculations, we investigate the electronic transport of helicenes under stretching or compressing. Interestingly, a U-shaped curve of the current against d (the pitch of a helicene) is observed. Further analysis shows that, it is the result of the nonmonotonic change o...

In this work incompressible two-phase flows are considered. The aim is to model high density-ratio flows with arbitrary complex interface topologies, such as occur in air/water flows. Between the phases a sharp front exists, where density and viscosity change abruptly. The computational method used in this paper is the mass conserving level-set method. It is based on the level-set methodology, ...

Top executives incentives and risk management are important contents of corporate governance research. However, few empirical data studies of risk management take top level manager incentives economic benefit into account, and the executive incentives effectiveness is unclear in most studies, the paper collected empirical data of listed companies in financial industry in 2008-2013, and we found...

OBJECTIVE Can having too much self-control make people unhappy? Researchers have increasingly questioned the unilateral goodness of self-control and proposed that it is beneficial only up to a certain point, after which it becomes detrimental. The little empirical research on the issue shows mixed results. Hence, we tested whether a curvilinear relationship between self-control and subjective w...

Rapid human consumption increases natural resource consumption, which damages the environment. The present study links sustainable economic development and Ecological Footprint in 78 developing 93 developed countries from 1990 to 2020. This measures using Human Development Index (HDI). uses panel quantile regression (PQR) analyze data lower, middle, higher ecological footprint groups. concluded...

The histogenetic relationship amongst various dendritic cells of the dermis which may express markers including factor XIIIa (FXIIIa) or CD34 remains unclear. In this study we utilized a sensitive indirect immunoperoxidase staining technique to identify CD34 and FXIIIa, as well the monocyte/macrophage markers KP-1 and MAC 387 expression in a variety of cutaneous dermal tumors of mesenchymal ori...