Jingjing Zhong

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4"-O-isovaleryltransferase gene (ist) was regulated by positive regulatory genes of midecamycin 4"-O-propionyltransferase gene (mpt) in Streptomyces lividans TK24. A BamH I ~8.0 kb fragment from Streptomyces mycarofaciens 1748 was proved that it contained mpt gene and linked with two positive regulatory genes, orf27 and orf28. Orf of mpt was replaced by orf(More)
In this paper, we proposed a model for visual saliency, which is space and object based and can be used for detecting single and multiple salient objects in static natural scenes. The model uses a bottom-up saliency map based on color, orientation and intensity, integrated with edge areas based on edge information. Edge areas is proposed here first as we(More)
OBJECTIVE To investigate the effect of RbAp48 knockdown on the migration and invasion of human cervical cancer cells and explore the mechanism. METHODS A small interference RNA (siRNA) was used to knock down the expression of RbAp48 in MS751 cells. The changes in cell migration and invasion were evaluated using wound healing assay and Transwell assay,(More)
Here, we propose a confidence shape metric for level set segmentation. First, the confidence shape metric, which encodes local confidence into the matching result, is used in matching shapes and producing confidence maps. Then, based on the confidence shape prior, the level set function evolves to a desired contour. The proposed shape metric allows(More)
Similarity is one of the important Gestalt laws for contour grouping. Edges are the basic elements of contour grouping. We define a novel measurement of edge similarity on the case of that an edge representation includes an estimate of the image intensity on either side of each edge. We discuss how to choose a proper feature to encode edge regions and which(More)