An Interactive Smartphone App, Nenne Navi, for Improving Children's Sleep: Pilot Usability Study.

Background: Healthy sleep is important not only for physical health but also for brain development in children. Several reports have revealed that Japanese adults and children have later bedtimes and shorter sleep durations compared with those in other countries, possibly because of Japanese culture and lifestyles. Therefore, an intervention tool that is suitable to the Japanese sociocultural environment is urgently needed to improve children's sleep problems in their early years.

A qualitative study of decision-making by breast cancer patients about telling their children about their illness.

Objective: Many breast cancer patients are troubled about telling their school-age children about their illness. However, little attention has been paid to the factors that encourage or discourage them from revealing the illness. This study explored decision-making by breast cancer patients about telling their children about their illness.

Precise size determination of amphotericin B and nystatin channels formed in erythrocyte and liposomal membranes based on osmotic protection experiments.

The colloid osmotic nature of the cell lysis can be prevented by adding osmotic protectants of appropriate sizes to the outer medium. We introduced inorganic and organic electrolytes as protectants to determine the precise channel sizes of the polyene antibiotics, amphotericin B and nystatin, in addition to the sugars so far widely used for this purpose. Because colloid osmotic cell lysis is evidenced by the loss of membrane permeability barriers for small sizes of ions, such as K(+), preceding hemolysis, we firstly simultaneously monitored the time response of the K(+) efflux and hemolysis induced by amphotericin B by combining a fiber-optic spectrometer with a K(+)-selective electrode.