Expression of the mouse miR-290-295 cluster and its miR-371-373 homolog in human is restricted to early embryos, primordial germ cells, the germ line stem cell compartment of the adult testis and to stem cell lines derived from the early embryonic lineages. Sequencing data suggest considerable seed diversification between the seven homologous pre-miRNAs of miR-290-295 but it is not clear if all...

The absorption spectral slope, S275–295, is an optical metric frequently employed for characterizing chromophoric dissolved organic matter (CDOM). We collected CDOM (aCDOM) and fluorescence spectra from the oligotrophic offshore South China Sea to identify major determinant of S275–295 explore potential as physical biogeochemical tracers. linearly decreased with increasing humic-like fluorescen...

Two new polycyclic alkaloids, neopetrocyclamines A and B (1 and 2), along with the known metabolites papuamine (3) and haliclonadiamine (4), were isolated from the Indonesian sponge Neopetrosia cf exigua. Neopetrocyclamine A contains a formamidinium moiety, a rare functional group. While these compounds share the same basic biosynthetic building blocks, the size of the ring system differs in 1 ...

Electron spin resonance of Mn2+ doped in Eu2M”3 (NO3)12.24H2 O (M” = Zn, Co) single crystals has been studied at 295 and 77 K using an X-band spectrometer. The observation of resolved Mn2+ spectra in Eu2Co3(NO3)12.24H2O at 295 K have been interpreted in terms of random modulation of interaction between Mn2+ and divalent cobalt ions by the rapid spin-lattice relaxation of cobalt ions. T1 of diva...