Control of Optical Reflection in CaMgWO by Co and Mo Doping.

To develop novel inorganic red pigments without harmful elements, we focused on the band structure of Ca(Mg, Co)WO and attempted to narrow its bandgap by replacing the W sites in the host structure of Mo. CaMgCoWMoO (0.10 ≤ ≤ 0.

Novel near-infrared reflective black inorganic pigment based on cerium vanadate.

Gd-doped cerium vanadates, Ce Gd VO (0 ≤ ≤ 0.30), were synthesized as near-infrared (NIR) reflective black pigments by a conventional solid-state reaction method. Crystal structure, particle size, optical properties, and color of the samples were characterized.

Synthesis and Characterization of Ca Eu ZrO as Environmentally Friendly Inorganic Yellow Pigments.

Eu-doped calcium zirconates, Ca Eu ZrO (0 ≤ ≤ 1), were synthesized as novel environmentally friendly inorganic yellow pigments by the conventional solid-state reaction method. The crystal structure, morphology, optical properties, and color were characterized. The Eu-doped samples strongly absorbed blue light in the wavelength range of 435-480 nm, which was caused by the 4f-5d allowed transition of Eu.

Three-year follow-up on the effects of a smoking prevention program for elementary school children with a quasi-experimental design in Japan.

Objective: We performed the follow-up tests for three years for junior high school students by the quasi-experimental design to investigate the medium-term effect of smoking prevention education in the elementary school.

Methods: The intervention group consisted of 106 school students of three elementary schools and received a smoking prevention program in the elementary school. Moreover, the follow-up tests were conducted at each grade of junior high school, and the booster program was mailed.