This book provides an overview of steganography and digital watermarking, two areas of research which are generally referred to as "information hiding." Steganography studies ways to make communication invisible by hiding secrets in innocuous messages, whereas watermarking originated from the need for copyright protection of...

Cardiac surgery is performed on hundreds of thousands of patients a year, and can have an important beneficial impact on the outcomes of patients with coronary and valvular heart diseases. Despite the favorable recovery of most patients, some will have their post-operative period interrupted by the development of atrial fibrillation, with a...