Anders Walker makes several fascinating observations about the contents of textbooks and how they relate to competing visions of what courses in substantive criminal law should seek to accomplish. He advances at least two theses. He states that “every year” (1) “thousands of law students graduate thinking that they have studied criminal law using the case method, when they have not”; and (2) “t...

This paper is presenting a betterment steganographic method for covert channel communication. Two distinct methods are combined to achieve possibly high data hiding capability with high visual quality. The proposed method shifts the last n nonzero AC coefficients from S JPEG block, and changes the magnitude values of the first n nonzero AC coefficients from T JPEG blocks. S and T blocks are det...

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