A rapidly-growing friable nodule on the cheek.

Atypical fibroxanthoma and pleomorphic dermal sarcoma are on a spectrum of cutaneous tumors that present as ulcerated lesions in older adults. We present an 84-year-old man with pleomorphic dermal sarcoma, initially presenting as a bleeding lesion of the cheek that progressed to an eroded nodule.

Tobacco industry narratives of e-cigarette use in the UK: a qualitative framing analysis.

Public health actors have expressed concerns over the entry of the tobacco industry into the UK e-cigarette market. It is important to be aware of the tobacco industry's involvement and stated aims for e-cigarettes in the UK, given their historical attempts to divert attention from and escape responsibility for the harms caused by combustible cigarettes. The use of e-cigarettes amongst young people in the UK has remained constant, despite the law prohibiting sales to adolescents and claims by manufacturers and others that they are designed solely as a tool to quit smoking.

Stabilizing Metal Halide Perovskite Films via Chemical Vapor Deposition and Cryogenic Electron Beam Patterning.

Halide perovskites are hailed as semiconductors of the 21 century. Chemical vapor deposition (CVD), a solvent-free method, allows versatility in the growth of thin films of 3- and 2D organic-inorganic halide perovskites. Using CVD grown methylammonium lead iodide (MAPbI) films as a prototype, the impact of electron beam dosage under cryogenic conditions is evaluated.