There is currently a need for effective ligand design approaches for toxic metals, and Pb(II) in particular, for probing Pb(II) coordination and reactivity in biological systems, as well as for separation and sensing applications. Ion-exchange extraction is a potentially powerful approach, which combines coordination chemistry principles with variations in metal extractability in order to optim...

Mate choice is mediated by a range of sensory cues, and assortative mating based on these cues can drive reproductive isolation among diverging populations. A specific feature of mormyrid fish, the electric organ discharge (EOD), is used for electrolocation and intraspecific communication. We hypothesized that the EOD also facilitates assortative mating and ultimately promotes prezygotic reprod...

Quantitative design of the optimal gas extraction engineering parameters has always been a key scientific problem to meet predrainage target coal seam, which is paid great attention and urgently expected solve for mine. In this paper, governing equation evolution seam content established under interference cooperation by boreholes, calculation formula cooperative efficiency defined. Based on ga...

background : there are growing evidences for chromosomal radioadaptive response in human lymphocytes . highly variable inter- and intra-individual responses have been reported. some individuals are non-responders and even in some donors the frequency of chromatid aberrations induced by a challenge dose increases by pre-exposure to an adapting dose. it has been proposed that the lack of radioada...