From scalpel to surfboard

From Scalpel to Scale-up: Shaping Perceptions of Male Circumcision

Hydrodynamic Performance of a Surfboard Fin

The performance of a generic surfboard fin is investigated in a cavitation tunnel to gain basic understanding of the viscous flows involved for future systematic experimental and computational studies. Measurements of lift and drag forces, pitching moment and results of flow visualisation are presented. Surface flow visualisation studies reveal relatively complex boundary layer transition and s...

SCALPEL: Extracting Neurons from Calcium Imaging Data

In the past few years, new technologies in the field of neuroscience have made it possible to simultaneously image activity in large populations of neurons at cellular resolution in behaving animals. In mid-2016, a huge repository of this so-called “calcium imaging” data was made publicly-available. The availability of this large-scale data resource opens the door to a host of scientific questi...

Topologists Take Scalpel to Brain Scans

In recent years, magnetic resonance imaging has revolutionized the ability of doctors to understand the organization and the functioning of the human brain. But if you look at a brain scan close up—really, really close—you’ll see some things that nature never intended. Because of glitches in the digital imaging process, nonexistent connec-tions can appear between adjacent folds of the cerebral ...

“Scalpel safety”: Modeling the effectiveness of different safety devices’ ability to reduce scalpel blade injuries

Background: The objective of this study was to analyse and compare the potential effectiveness of two safety strategies in reducing scalpel blade injuries. The two strategies examined were safety scalpel vs. a single-handed scalpel blade remover combined with a hands free passing technique (HFPT) (e.g. passing tray or neutral zone). Methods: This was a retrospective study involving review of a ...