Opportunities and risks following current European elections and maintaining and improving the health of citizens in EU countries was a major theme of the EHFG annual conference in October in Gastein, Austria. The Ebola crisis in six African nations, with about 14,000 reported cases and 4,900 deaths, was another topic of discussion by the 600 leading experts in attendance. The World Health Organization states 4.7 million people could be infected and 1.2 million people could die from Ebola by June 2015. The crisis is not just an epidemic, it is a systemic failure of our global health care model, according to experts. Moreover, it is a failure on governance, international development assistance, but primarily on the failure to take immediate action. and Marina Hužvárová.
We give a full characterization of the closed one-codimensional subspaces of $c_0$, in which every bounded set has a Chebyshev center. It turns out that one can consider equivalently only finite sets (even only three-point sets) in our case, but not in general. Such hyperplanes are exactly those which are either proximinal or norm-one complemented.