Low Temperature Injury and Peroxidation of Membrans Lipids in Rice Seedlings Application of Electric Coupling on Basic Research of Grafting Heat Injary and Changes in Electrical Resistance of Leaf Tissue Comparative Study of Yong Leymus chinensis’s Electrical Resistance and Conductivity of Different Geographic Population Establishment of Caco-2 cell monolayer model with collagen coating 6-well plates for study of traditional Chinese medicine prescription Modulating Effects of Acetylcholine on Permeability and Translocation in Etiolated Mesocotyl of Corn Seedling