Quantum Mechanics in Terms of Realism
  .We expound an alternative to the Copenhagen interpretation of the formalism of nonrelativistic quantum mechanics. The basic difference is that the new interpretation is formulated in the language of epistemological realism. The {\psi} function is no longer interpreted as a probability amplitude of the observed behaviour of elementary particles but as an objective physical field representing the particles themselves. The particles are thus extended objects whose extension varies in time according to the variation of {\psi}. They are considered as fundamental regions of space with some kind of nonlocality. There is no wave-particle duality. The point-particle-like behaviour is explained by spatial contraction in a deterministic reduction process. 
Arthur Jabs