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The results of the survey of practicing doctors and experts of the quality of medical care about the problem of patient safety in medical organizations are presented.

The article presents the results of a survey of practitioners on the problem of patient safety in medical organizations.

Numerical simulations of surface roughening of heterogeneous materials under loading have been performed in the context of physical mesomechanics, using polycrystalline and coated materials as examples. A three-dimensional problem is solved to investigate the stress-strain state in the bulk and on the surface of materials subjected to uniaxial tensile strain. The effect of internal interfaces on the processes operative on a free solid surface is examined. The role of internal structure in the development of free surface roughening is demonstrated.