Publications by authors named "A Iu Ushakov"

Background: Painful thyroiditis (PT) combines several variants of pathology. The most common is subacute thyroiditis (ST). Despite the prevailing view that the factors underlying the development of ST have an infectious origin, its viral and bacterial pathogeneses remain unclear.

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Background: It is known that subclinical hypothyroidism (SCH) often converts to euthyroidism. However, the mechanism of such changes is unclear and can only be speculated. This difficulty is likely due to limitations in diagnostic guidelines and their interpretation.

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Article Synopsis
  • Recent research shows that cobaltites may serve as a valuable avenue for studying Kitaev physics in honeycomb structures and the Ising model in weakly linked chains.
  • The study investigates the magnetic properties of SrCoGeO using neutron scattering, ab initio methods, and linear spin-wave theory to propose a modified Kitaev model for the interactions in this material.
  • Findings indicate that external magnetic fields can shift the material's magnetic ordering and suggest modified pyroxenes could offer new insights into Kitaev physics.
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For the first time to our knowledge, multiwavelength, highly transient, single-pass stimulated Raman scattering with a low wavelength spacing on dual (stretching and bending) Raman modes in Sr(MoO)(WO) and Sr(MoO)(WO) solid solutions in a range of 1000-1300 nm (transparence window of biological tissue) under ultrafast chirped pulse laser pumping is comparatively investigated in the interests of multicolor two-photon imaging of a living tissue. For both the solid solutions, the optimum range (1-5 ps) of chirped pump pulse durations for multiwavelength Raman conversion on dual Raman modes was wider than for SrMoO (2-3 ps) due to the higher integral cross section of the bending Raman mode. Higher efficient SRS conversion took place at negative chirping of the pump pulse with its stretching from 0.

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Benign thyroid nodules are significantly common and occur in 50-60% of the population. Therefore, differentiation from malignant nodes and the choice of treatment tactics in some cases of benign pathology remain relevant. Despite advances in the clinical evaluation of thyroid nodules, methodological challenges exist due to empirically simplistic understandings of the nodular process.

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