Digital watermarking has been recently proposed as the mean for copyright protection of multimedia data. This paper rst discusses some scenarios in which many current watermarking schemes fail to resolve the rightful ownership of an image. We then identify the key problems and discuss some crucial requirements for a valid invisible watermark detection. In particular , we argue that, for the par...

The aim of this paper is to treat background (non-focus) elements as anaphoric, i.e. as objects which are formally subject to the same conditions which hold for other anaphora. The idea that backgrounds are anaphoric is inherent in many approaches to information structure, but they are rarely treated as such formally. I will discuss two problems which seem to challenge a strict anaphoricity app...

 Abstract Bronchoalveolar carcinoma presenting as non-resolving consolidation is an uncommon presentation. The typical presentation of bronchoalveolar carcinoma is asymptomatic (solitary nodule) and remains without symptoms even as disease disseminates. We report a case of bronchoalveolar carcinoma presenting as non-resolving consolidation in a young male with productive cough, exertional ...