Spectroscopic properties of solid relative humidity (RH) sensors consisting of anionic fluorescein dyes (AFD) and 1-butanesulfonate (C4S) ions hybridized with layered double hydroxides (LDH) were investigated under various RH conditions. The obtained LDH/C4S/AFD hybrid material contained at least three different types of water adsorption sites with adsorption capacities of one water molecule per formula unit. Photoluminescence (PL) intensity of the LDH/C4S/AFD hybrid was significantly enhanced by water adsorption (especially in the RH range between 20 and 80%) indicating that the synthesized material possessed strong RH sensing properties and thus could be used in water vapor sensor devices.

The development of the early mouse embryos was investigated from 36 to 84 h after the presumed time of fertilization. The mean number of cells constituting the embryo from the intra-strain crosses of three strains at 84 h of development was as follows: DDK, 22·7; BS, 43·1 and 1TES, 62·0. A significant difference was observed in the cleavage rate of the embryo between DDK and the other two strains. The F1 embryos from the crosses of BS females × DDK males and ITES females × DDK males showed almost the same progress of development as BS and ITES embryos, respectively. Therefore, it is concluded that the early development of the F1 embryos is regulated mainly by the factors from the mother. The morulae from the semi-sterile cross, DDK females × BS males, showed conspicuously small cell numbers as compared with their litter-mates that developed to the blastocyst stage. It is inferred that the discrimination is already made during cleavage between the fortunate survivors and the lethal embryos due to the incompatibility between the cytoplasmic factor of DDK eggs and alien spermatozoa.

n order to apply a foam separation technique to I remove various metal ions or complexes from their ERRATUM Mechanics of a Turbulent Contact Absorber.