The last ten years have seen a great flowering of the theory of digital data modulation. This book is a treatise on digital modulation theory, with an emphasis on these more recent innovations. It has its origins in a collabor ation among the authors that began in 1977. At that time it seemed odd to us that the subjects of error-correcting codes and data modulation were so separated; it seemed also that not enough understanding underlay the mostly ad hoc approaches to data transmission. A great many others were intrigued, too, and the result was a large body of new work that makes up most of...

Behavior therapists on child and adolescent psychiatric inpatient units have played an increasing role in the treatment of a wide range of disorders. Indeed, behavioral assessment and treatment strategies in these settings have been applied to a diversity of problems, including depression, mental retardation, autism, conduct disorders, attention deficit hyperactivity disorder, anorexia, and bulimia. More recently, the heuristic value of behavioral methods with substance abuse, pediatric pain, and child maltreatment has been documented as well. Because of the multifaceted and complex...

Ion channels allow us to see nature in all its magnificence, to hear a Bach suite, to smell the aroma of grandmother's cooking, and, in this regard, they put us in contact with the external world. These ion channels are protein molecules located in the cell membrane. In complex organisms, cells need to communicate in order to know about their metabolic status and to act in a coordinate manner. The latter is also accomplished by a class of ion channels able to pierce the lipid bilayer membranes of two adjacent cells. These intercellular channels are the functional subunits of gap junctions....