We present a concurrent higher-order programming language called Plain and a concomitant static type system. Plain is based on logic variables and computes with possibly partial data structures. The data structures of Plain are procedures, cells, and records. Plain’s type system features record-based subtyping, bounded existential polymorphism, and access modalities distinguishing between readi...

On occasion gastric ulcers may be recognized on plain abdominal radiographs. A case in which a gastric ulcer was diagnosed on the plain abdominal radiograph, illustrating the importance of careful scrutiny of the plain film in all cases of acute abdomen, is presented. The existence of the lesser curvature ulcer was confirmed on barium contrast studies.

OBJECTIVES This study examined the perceptions of cigarette packaging and the potential impact of plain packaging regulations. The hypothesis was that the branded cigarette packages would be rated more positively than the corresponding plain packs with and without descriptors. DESIGN Between-subjects experimental online survey. Male and female participants were separately randomised to one of...

Recent years have seen an explosion in the number of studies that explore the collective dynamics of biomo-lecular systems using coarse-grained (CG) models along with methods based on principal component analysis (PCA). Among them, elastic network models (ENMs) and normal mode analyses (NMAs) have found wide use in several applications. Recent studies are now providing evidence for the usefulne...