François Caron (1931-2014)

Alan Mercer (1931-2014) - A founding editor of EJOR

Emeritus Professor Alan Mercer of Lancaster University died on July 9, following a stroke, a month short of his 83rd birthday. Alan, Bernhard Tilanus and Hans-Jurgen Zimmermann, were founding editors of the European Journal of Operational Research (EJOR) in 1975, and continued as editors together until they resigned in 1998. It was expected that the tripartite editorship would only last a year ...

A systematic review of Rift Valley Fever epidemiology 1931–2014

BACKGROUND Rift Valley Fever (RVF) is a mosquito-borne viral zoonosis that was first isolated and characterized in 1931 in Kenya. RVF outbreaks have resulted in significant losses through human illness and deaths, high livestock abortions and deaths. This report provides an overview on epidemiology of RVF including ecology, molecular diversity spatiotemporal analysis, and predictive risk modeli...

Art.-Caron (P)

The widespread abuse of cocaine, a highly addictive psychostimulant, places tremendous social, medical, and economic burdens on society. By improving our understanding of the underlying mechanisms of cocaine addiction, it may be possible to develop more effective therapeutic strategies and social policies aimed at reducing the abuse of cocaine. Cocaine inhibits the uptake of monoaminergic neuro...

19 April 2013 − − François

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...