This survey of the spectral properties substitution dynamical systems is devoted to primitive aperiodic substitutions and associated systems: Z <mml:annota...

We prove that Khovanov homology with Z / 2 \mathbb {Z}/2<...

The relationship between the key depression force on an upright piano and the level of loudness of a generated tone was examined when pianists hit a force-sensor built-in key with "struck" or "pressed" type of touch. The vertical displacement of the key, and the radiated piano sounds were also recorded. It was found that for both types of touch, simple exponential functions could adequately des...

Over 17,000 non-struck or far side occupants in side and rollover crashes are seriously or fatally injured annually in the US. Although no legal or rating tests exist for far side crashes, test methods including appropriate dummies as well as countermeasures have been recently suggested. The aim of this study was to establish the incidence and risk of injury / fatality as a function of vehicle ...

DESCRIPTION A 23-year-old man presented to the emergency department with the after being struck in the hand with a basketball. Clinical findings are seen in the image above.