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To smoke or not to smoke

2021
Research demonstrates that smoking is highly correlated with, and a cause of, head and neck cancer and Chronic Obstructive Pulmonary Disease (COPD). Although the prevalence of smoking has declined since 1965, a significant proportion of the population continue to smoke.
Kim Phillips Baron, Christine M. Nezu
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The Control of Smoking: Smoking Rate in Designated Smoking and No-Smoking Areas

International Journal of the Addictions, 1983
Unobtrusive measurements were taken over a 5-day period at three hospital areas designated as smoking permitted and three designated as no-smoking. A surprisingly high degree of compliance was observed in reported patient complaints or criticisms in regard to the controlled-smoking policy. The practical advantages of a comprehensive, hospital-wide sign
H H, Dawley, J, Baldwin
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Smoke rings from smoke

ACM Transactions on Graphics, 2014
We give an algorithm which extracts vortex filaments ("smoke rings") from a given 3D velocity field. Given a filament strength h > 0, an optimal number of vortex filaments, together with their extent and placement, is given by the zero set of a complex valued function over the domain.
Weißmann, Steffen   +2 more
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