Hutchinson-Gilford progeria syndrome (HGPS) is a rare premature ageing disorder that is characterized by accelerated degenerative changes of the cutaneous, musculoskeletal and cardiovascular systems. Mean age at diagnosis is 2.9 years and generally leading to death at approximately 13 years of age due to myocardial infarction or stroke. Orthopedic manifestations of HGPS are multiple and shoulde...

We present a systematic classification of the elementary excitations of Bose–Einstein condensates in cylindrical traps in terms of their shapes. The classification generalizes the concept of families of excitations first identified by Hutchinson and Zaremba [Hutchinson D A W and Zaremba E 1998 Phys. Rev. A 57 1280]. We relate the energy ordering of the modes to their family classification, and ...