Photocatalysts In article number 2301576, Soojin Park, Jungki Ryu, and co-workers present earth-abundant non-toxic photocatalysts that can produce hydrogen reform biomass efficiently, utilizing solar energy. Si flakes modified with Ni-coordinated N-doped graphene quantum dots facilitate record-high productivity under simulated sunlight without any buffering agent sacrificial electron donors. Th...

A semiconductive oxide, La2CuO4 (LCO), was investigated as a potential material to compose photocathode for sunlight-driven hydrogen evolution by splitting water. LCO, despite involving partially filled Cu 3d orbitals, behaves semiconductor and absorbs visible light on the bandgap formed significant Coulomb repulsion between electronic orbitals. An epitaxial LCO film grown SrRuO3/SrTiO3 (SRO/ST...

BACKGROUND Annual patterns in suicide rates, peaking near the summer solstice, are well documented. It has been suggested that day length or total hours of sunshine has an impact on suicide rates. If these environmental factors are involved, we would expect changes in the daily pattern of suicide rates to occur over the year. To test this hypothesis, the 24-h patterns of suicide rate were inves...