Three-Way-Switchable (Right/Left/OFF) Selective Reflection of Circularly Polarized Light on Solid Thin Films of Helical Polymer Blends.

Two poly(quinoxaline-2,3-diyl) copolymers bearing miscibility-enhancing 8-chlorooctyloxy and (S)-2-methylbutoxy or n-butoxy side chains were synthesized. After annealing in CHCl3 vapor, a polymer-blend film of these copolymers exhibited selective reflection of right-handed circularly polarized light (CPL) in the visible region. The handedness of the CPL reflected was completely inverted upon annealing of the film in THF vapor.

[A Case of Corneal Injury due to Herbicide Containing Paraquat: Effectiveness of 2% Rebamipide Eye Drops].

Background: Herbicides containing paraquat are widely used and have occasionally been causing ocular damage. The initial ocular injury caused by paraquat tends to worsen within a few days to 1 week. The toxicity of paraquat is based on the oxidative stress induced by reactive oxygen species.

The effect of electroacupuncture with different frequencies on muscle oxygenation in humans.

The aim of the present study was to investigate the effect of electroacupuncture (EA) with different frequencies on muscle oxygenation in humans. The subjects were 8 healthy male volunteers. Muscle oxygenation was measured using near-infrared spectroscopy (NIRS).