To cite: di Summa PG, Yvon A, Raffoul W, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2014-204779 DESCRIPTION A 34-year-old man, right-handed, smoker, presented to A&E with a 2-month history of pain, numbness and cold sensitivity in the fourth and fifth digits of his right hand. He had not suffered from any recent trauma; his usual activity was carpentr...

Hand Arm Vibration Syndrome (HAVS) is an occupational disease affecting 50% of riveting hammer operators after 10 years of work. Current international standards (ISO 5349) seeking to protect workers from occupational vibration are not effectively predicting HAVS onset. Scarce research has been done which investigates the long term effects of riveting hammer vibration exposure and nerve regenera...

In these notes, we introduce a powerful technique for solving geometric problems. This technique, called the plane sweep technique, appears in Shamos’ Ph.D. thesis from 1978—which is considered the birthplace of computational geometry—although the concept was known already to geometers. The plane sweep technique gives efficient and reasonably simple algorithms for a large variety of geometric p...

We previously presented a HAMMER image registration algorithm that demonstrated high accuracy in superposition of images from different individual brains. However, the HAMMER registration algorithm requires presegmentation of brain tissues, since the attribute vectors used to hierarchically match the corresponding pairs of points are defined from the segmented images. In many applications, the ...

Sound sources are perceived by integrating information from multiple acoustical features. The factors influencing the integration of information are largely unknown. We measured how the perceptual weighting of different features varies with the accuracy of information and with a listener's ability to exploit it. Participants judged the hardness of two objects whose interaction generates an impa...

Our body is made of flesh and bones. We know it, and in our daily lives all the senses constantly provide converging information about this simple, factual truth. But is this always the case? Here we report a surprising bodily illusion demonstrating that humans rapidly update their assumptions about the material qualities of their body, based on their recent multisensory perceptual experience. ...

Previous works have shown that a combination of digital waveguide and signal models allows a perfect resynthesis of the sound generated by a string struck by a hammer. In particular the non-linear behavior of the hammer/string interaction is well reproduced. However, in an acoustic piano, two or three strings are struck by the same hammer, and the characteristics of the strings and the hammers ...