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  1. No Access

    Article

    A Direct PCR on Conidiospore of Aspergillus niger

    In this paper, a simplified PCR protocol using intact conidiospore of Aspergillus niger was established by checking its internal transcribed spacers and inter-simple sequence repeat. The A. niger efficient conidi...

    **nwei Zhao, Ge Song, Shuang Zhang, Chen Du, Kejiu Du in National Academy Science Letters (2020)

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    Article

    Some Properties of Algebraic Connectivity

    In this paper, we obtain two methods to compare the algebraic connectivity of two graphs, and we also give some graph operations that increase or decrease the algebraic connectivity of a graph.

    Muhuo Liu, Guangliang Zhang, Kinkar Chandra Das in National Academy Science Letters (2020)