Although ABO incompatibility between mother and fetus has long been suspected as cause of spontaneous abortion in man, its precise contribution has not been completely resolved. In spite of reports in which the incompatible mating was recognized to be a cause of habitual abortion, and which eventually results in infertility or a reduction in the number of living children compared with the numbe...

We introduce a new way of quantifying the degrees of incompatibility of two observables in a probabilistic physical theory and, based on this, a global measure of the degree of incompatibility inherent in such theories, across all observable pairs. This opens up a novel and flexible way of comparing probabilistic theories with respect to the nonclassical feature of incompatibility, raising many...

We consider the question of characterizing incompatibility sets high-dimensional quantum measurements. introduce concept measurement in subspaces. That is, starting from a set measurements that is incompatible, one considers obtained by projection onto any strict subspace fixed dimension. identify three possible forms subspaces: (i) incompressible incompatibility---measurements become compatibl...