Publications by authors named "A S Vasiliev"

Purpose: To analyze levels of salivary steroids, including 17-OH-progesterone (17-OHP), androstenedione, dehydroepiandrosterone, cortisol, cortisone, progesterone, testosterone, and estradiol, in patients with acute central serous chorioretinopathy (CSCR) patients.

Methods: Acute CSCR patients and healthy individuals were included in this observational case-control study. Levels of salivary steroids were determined by high-performance liquid chromatography with tandem mass spectrometry detection.

View Article and Find Full Text PDF

Object: To evaluate inter- and intra-observer agreement of the proposed diagnostic and treatment classification of degenerative spondylolisthesis.

Material And Methods: The proposed diagnostic and treatment classification of degenerative spondylolisthesis was validated according to the GRRAS protocol. For this purpose, we retrospectively analyzed MRI, CT and spinal radiography data in 20 patients.

View Article and Find Full Text PDF

Background: Bi is a short-lived radionuclide currently trialed for alpha therapy of various oncological diseases. A serious obstacle to the wide medical use is decay losses of Bi during a conventional synthesis of radiopharmaceuticals. In this work, we aimed to develop a two-column Aс/Bi generator providing the accumulation of Bi separately from the parent Ac via continuous circular separation and decay of intermediate Fr.

View Article and Find Full Text PDF

In this paper, we present the synthesis and characterization of a rubidium vanadium(III) vanadyl(IV) phosphate, obtained under hydrothermal conditions. The new compound crystallizes in the triclinic space group 1̄ with the unit cell parameters = 9.637(1), = 12.

View Article and Find Full Text PDF
Article Synopsis
  • A neutral iron(III) complex hydrate based on pyruvic acid thiosemicarbazone was synthesized and analyzed using various methods like FT-IR spectroscopy and X-ray diffraction, with its structure being reported for the first time.
  • The structure features an octahedron geometry around the Fe(III) ion formed by two ligands, resulting in unique interactions, including π-π interactions and hydrogen bonding.
  • Notably, the magnetic properties show a spin-crossover phenomenon at temperatures between 300-363 K, revealing weak antiferromagnetic exchange interactions between iron(III) centers, confirmed by theoretical calculations.
View Article and Find Full Text PDF