Yunzhuan He

  • Citations Per Year
Learn More
Oral biofilm is inevitably left behind, even after powered brushing. As a special feature, powered brushing removes biofilm in a noncontact mode. When the brushing distance becomes too large, biofilm is left behind. We hypothesize that biofilm left behind after brushing has different viscoelastic properties than before brushing, impacting antimicrobial(More)
Bt cotton has been widely planted in the Yellow River valley of China since 1998. Anci County in Hebei Province and Xiajin County in Shandong Province are two areas where almost 100% of the cotton grown produces Cry1A(c) toxin. These areas were therefore selected for analysis of the frequency of genes coding for resistance to Cry1A(c) in field populations(More)
  • 1