One big advantage Photoshop professionals have always had was the understanding of channels. It was their secret weapon, and it enabled them to do things, and work in an entirely different way than their competitors, and maybe that's why the secret power of Photoshop's channels has been such a closely guarded secret. Until now. Award-winning, bestselling author Scott Kelby (Edi...(展开全部)

Ion channels underlie a broad range of the most basic biological processes, from excitation and signaling to secretion and absorption. Like enzymes, they are diverse and ubiquitous macromolecular catalysts with high substrate specificity and subject to strong regulation. This fully revised and expanded Third Edition of Ion Channels of Excitable Membranes describes the known cha...(展开全部)

Channel management has become one of the most important components of a firm's competitive strategy, with mistakes often costing companies millions - and channel managers their careers. "The Manager's Guide to Distribution Channels" provides managers and decision makers with proven tools and go-to-market strategies for refining channel strategies and managing distribution relat...(展开全部)