We study the linear stability problem of the stationary solution ψ∗ = − cos y for the Euler equation on a 2-dimensional flat torus of sides 2πL and 2π. We show that ψ∗ is stable if L ∈ (0, 1) and that exponentially unstable modes occur in a right neighborhood of L = n for any integer n. As a corollary, we gain exponentially instability for any L large enough and an unbounded growth of the numbe...

AIMS An increase in platelet aggregability is associated with unstable angina and myocardial infarction. Platelet size and activity correlate and mean platelet volume was found to be increased before acute myocardial infarction. We measured the mean platelet volume and platelet count in patients with stable angina, unstable angina and non-cardiac chest pain. METHODS AND RESULTS We studied 981...

The observations, primarily by Dienes and associates, of L colonies arising spontaneously or by penicillin induction from species of Proteus or Salmonella led to the description of two morphologically distinct colonial forms, designated as the 3B type and the 3A type. It has been reported further that the viable elements of these two types exhibit markedly dissimilar properties such as size, nu...