Karl Landsteiner blood group A nor of blood group B. Therefore, the immune systems of persons with blood group A, B or AB do not refuse the donation. Further, because persons with blood group AB do not form antibodies against either the antigens of blood group A or B, they can accept blood from persons with these blood groups, besides from persons with blood group O-negative. In today's blood transfusions only concentrates of red blood cells without serum are transmitted, which is of great importance in surgical practice. In 1930 Landsteiner was awarded the Nobel Prize in Physiology or Medicine in recognition
Nobel Prize controversies article describing the subatomic particle meson pi (pion). Lattes was solely responsible for the improvement of the nuclear emulsion used by Powell (by asking Kodak Co. to add more boron to it—and in 1947, he made with them his great experimental discovery). This result was explained by the Nobel Committee policy (ended in 1960) to award the prize to the research group head only. Lattes calculated the pion's mass and, with USA physicist Eugene Gardner, demonstrated the existence of this particle after atomic collisions in a synchrotron. Gardner was denied a prize because he died soon thereafter. The 1938 prize