The timing and spatial distribution of cells containing FMRFamide- and 5-HT-related molecules in the embryonic development of the mollusc Viviparus ater are examined using immunohistochemistry. FMRFamide-like molecules emerge in the early stage E8 (8% of embryonic development) before the 5-HT immunoreactivity, and they are not only found during nervous system ontogeny. As the parts of the diges...

Mixed potassium -ferrous ferrocyanide and its R u11 and O s11 analogs have been synthesized tribochem ically by grinding F e (S 0 4)-7 H 20 with the equivalent am ount of K4[Fe(CN )6]3 H 20 and the R u11 and O s11 compounds. Their X R D pow der patterns and M össbauer and IR spectra w ere recorded and in terpreted . The role of hydration w ater on the feasibility of the tribochem ical synthesis...