Article subjects are automatically applied from the ACS Subject Taxonomy and describe the scientific concepts and themes of the article. Our exciton model involves three types of states, the ground ...

Three-dimensional (3D) printing has the potential to transform science and technology by creating bespoke, low-cost appliances that previously required dedicated facilities to make. An attractive, but ...

Hierarchical structure with nested nonlocal dependencies is a key feature of human language and can be identified theoretically in most pieces of tonal music. However, previous studies have argued ...