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Increased funding: one of the biggest problems facing psychologists in Ukraine is the lack of resources and funding. Increased funding for mental health services and training could help improve the quality of care that psychologists can provide to their patients. The necessary recognition of mental health and the role of psychologists in providing care can help reduce stigma and increase collaboration between psychologists and other health professionals. More resources and educational materials in Ukrainian are needed to improve access to information and resources for Ukrainian psychologists, and to support the development of a strong, locally focused research base. Creating more jobs for psychologists, especially in underserved areas, can help increase access to mental health services for those who need them. Continuous education: psychologists. Education and public awareness can help encourage more people to seek help from psychologists and other mental health professionals. Of course, these steps are only a starting point and a solution to the complex problems faced by psychologists in Ukraine

Small-angle scattering of X-rays and neutrons is a routine method for the determination of nanoparticle sizes. The so-called Guinier law represents the low-q approximation for the small-angle scattering curve from an assembly of particles. The Guinier law has originally been derived for nonmagnetic particle-matrix-type systems and it is successfully employed for the estimation of particle sizes in various scientific domains (e.g. soft-matter physics, biology, colloidal chemistry, materials science). An important prerequisite for it to apply is the presence of a discontinuous interface separating particles and matrix. Here, the Guinier law is introduced for the case of magnetic small-angle neutron scattering and its applicability is experimentally demonstrated for the example of nanocrystalline cobalt. It is well known that the magnetic microstructure of nanocrystalline ferromagnets is highly nonuniform on the nanometre length scale and characterized by a spectrum of continuously varying long-wavelength magnetization fluctuations, i.e. these systems do not manifest sharp interfaces in their magnetization profile. The magnetic Guinier radius depends on the applied magnetic field, on the magnetic interactions (exchange, magnetostatics) and on the magnetic anisotropy-field radius, which characterizes the size over which the magnetic anisotropy field is coherently aligned into the same direction. In contrast to the nonmagnetic conventional Guinier law, the magnetic version can be applied to fully dense random-anisotropy-type ferromagnets.