… None declared by Li Lu or Wei Xing. … Therese Hesketh drafted the article, which Li Lu
and Zhu Wei Xing revised. All authors approved the final version submitted for publication. …

China’s one-child family policy has had a great effect on the lives of nearly a quarter of the
world’s population for a quarter of a century. When the policy was introduced in 1979, the …

In the absence of manipulation, both the sex ratio at birth and the population sex ratio are
remarkably constant in human populations. Small alterations do occur naturally; for example, a …

Objective The Chinese educational system is highly competitive from the start of primary
school with great emphasis on academic performance and intolerance of failure. This study …

Quenchable boron steel is a new type of ultra-high-strength steel used for automotive parts
to reduce the weight of automobiles and maintain the safety requirements. On the basis of …

Using the density-functional perturbation theory with structural optimization, we investigate
the electronic structure, phonon spectra, and superconductivity of the BiS 2-based layered …

It is shown that bilayer phosphorene can be transformed from a direct-gap semiconductor to
a BCS superconductor by intercalating Li atoms. For the Li-intercalated bilayer phosphorene…

An elastic spring model is applied to simulate the skeletal structure of the red blood cell (RBC)
membrane and to study the dynamical behaviors of the red blood cell rouleaux (…

The electronic structure, phonon dispersions, and electron-phonon (EP) coupling in Fe 2 Se
2/SrTiO 3 (FeSe/STO) thinnest films are studied based on the first-principles calculations. It …

Hot forming is a new way to manufacture complex-shaped components of advanced high-strength
steel (AHSS) sheet with a minimum of spring-back. Numerical simulation is an …