François Morel (1923-2007)

19 April 2013 − − François

Morel-Lavallée Lesion

Figure 1. Posterior view demonstrating extensive fluid collection of left trochanteric/lower back region.

Assignment 3 François Séguin

Question 1 First, we have that λ − λ − 2 = (λ + 1)(λ − 2). Therefore, it is true that the eigenvalues of the corresponding adjacency matrix come in pairs of additive inverse. However, notice that ± √ −1 are eigenvalues, and therefore the associated matrix cannot be symmetric (there would only be real eigenvalues). We conclude that no undirected graph can have the above characteristic polynomial...

The Planck mission François

These lecture notes discuss some aspects of the Planck1 mission, whose prime objective was a very accurate measurement of the temperature anisotropies of the Cosmic Microwave Background (CMB). We announced our findings a few months ago, on March 21st , 2013. I describe some of the relevant steps we took to obtain these results, sketching the measurement process, how we processed the data to obt...

Morel-Lavallée lesion: A review

Morel-Lavallée lesions are a relatively rare clinical problem, referring to closed degloving injuries around the pelvis or proximal femur, but have also been described in other areas of the body. The pathology involves a shearing of the hypodermis from the underlying fascia, with disruption of the perforating arteries and lymphatic plexus. In the early stages, there is predominantly accumulatio...