The present study examines acoustic variations of tones in Mandarin under the influence of
different tonal contexts. In particular, variations in the four Mandarin tones due to anticipatory …

We report epidemiological and clinical investigations on ten pediatric SARS-CoV-2 infection
cases confirmed by real-time reverse transcription PCR assay of SARS-CoV-2 RNA. …

We present a new image editing method, particularly effective for sharpening major edges
by increasing the steepness of transition while eliminating a manageable degree of low-…

There is still an ongoing effort to search for sustainable, clean and highly efficient energy
generation to satisfy the energy needs of modern society. Among various advanced …

Background Sipuleucel-T, an autologous active cellular immunotherapy, has shown
evidence of efficacy in reducing the risk of death among men with metastatic castration-resistant …

More than 60 000 infections have been confirmed worldwide in the coronavirus disease
2019 (COVID-19) epidemic, with most of these cases in China. Global attention has largely …

Titanium dioxide (TiO2), as an important semiconductor metal oxide, has been widely
investigated in the field of photocatalysis. The properties of TiO2, including its light absorption, …

The nanocomposites of TiO 2 −graphene (TiO 2 −GR) have been prepared via a facile
hydrothermal reaction of graphene oxide and TiO 2 in an ethanol−water solvent. We show that …

Merging hydrogen (H 2 ) evolution with oxidative organic synthesis in a semiconductor-mediated
photoredox reaction is extremely attractive because the clean H 2 fuel and high-value …

Carbon dioxide electroreduction (CO 2 R) is being actively studied as a promising route to
convert carbon emissions to valuable chemicals and fuels. However, the fraction of input CO 2 …