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We propose a novel and robust computational framework for automatic detection of deformed 2D wallpaper patterns in real-world images. The theory of 2D crystallographic groups provides a sound and natural correspondence between the underlying lattice of a deformed wallpaper pattern and a degree-4 graphical model. We start the discovery process with unsupervised clustering of interest points and voting...
The extracellular proteinases of the anaerobe Porphyromonas gingivalis, are implicated in the destruction of host defence mechanisms in periodontitis. We have previously purified one of these enzymes, α-gingivain, and established that it belongs to the cysteine proteinase family of enzymes. In the present study, transposon Tn4351 was used to alter the open reading frame encoding a region that includes...
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