UDC 61:378:061.22-057.87

This study explores additional opportunities for the formation and improvement of hard skills and soft skills in medical students through their participation in student scientific societies. Given that the specifics of a doctor's work involve performing a range of diagnostic and therapeutic procedures while also requiring communication with patients and medical colleagues to make optimal decisions, the skill set used by physicians in their professional duties can be divided into hard skills—specialized (theoretical and practical) competencies—and soft skills, which include social and communicative abilities.
Today, higher medical educational institutions prioritize the development of strong professional knowledge and skills among their graduates but often do not place enough emphasis on the formation of flexible socio-communicative competencies. Therefore, extracurricular engagement in student scientific societies during university studiesserves as a universal opportunity for improving hard skills and developing soft skills such as communication, creativity,
teamwork, the ability to formulate hypotheses and draw conclusions, active listening, scientific discussion, quick decision-making, risk assessment, and prevention strategies.
The development of hard skills and soft skills is an essential component of the educational process in higher medical institutions. Exploring the opportunities and conditions for developing these skills among medical students, while integrating a broad range of methods into their training, will significantly enhance the competitiveness of future medical professionals and ensure their successful self-realization.

Objective: A convenient and effective method for the obtaining of a 4-thiazolidinone ring is theт[2+3]-cyclocondensation reaction of S,N-binucleophiles with different equivalents of the dielectrophilic synthon [C2]2+. For this purpose, we achieved the synthesis of intermediate N1- methylidenethiosemicarbazones 3a-b starting from 2-amino/allylsulfanyl-5-ethyl-1,3,4- thiadiazoles 1-b via Vilsmeier-Haak formylation reaction following by condensation with thiosemicarbazide in acetic acid medium.
Methods: Organic Synthesis, NMR Spectroscopy, Elemental analysis, Pharmacological screening.
Results: The interaction of intermediate N1-methylidenethiosemicarbazones 3a-b with αhalocarboxylic (monochloroacetic, 2-bromopropionic, 2-bromobutanoic) acids or α-bromo-γbutyrolactone in acetic acid at the presence of sodium acetate was performed. As results, a series of targeted 2-hydrazino-4-thiazolidinones containing 6-phenylimidazo[2,1-b] [1,3,4] thiadiazole moiety 4a-b and their 5-alkyl substituted derivatives 5a-d and 6a-b were obtained. The structure of the synthesized compounds was confirmed by elemental analysis and NMR spectroscopy. The synthesized compounds 3a-b, 4a-b, 5a-d, and 6a-b were evaluated for their in vitro antitrypanosomal activity against Trypanosoma brucei gambiense (Feo strain).
Conclusion: The results of in vitro screening of antitrypanosomal activity against Trypanosoma brucei gambiense (TBG) allowed us to identify three highly active compounds 4b, 5b and 5c, whichбexhibited significant trypanocidal activity with a range of IC50 values of 3.7-4.4 µM and were comparable to the reference drug nifurtimox (IC50 = 4.4 µM). 

In the present work, we report an efficient synthesis and antioxidant activity evaluation of some 4-arylimino-thiazolidin-2-ones. The structures of target substances were confirmed through 1H and 13C NMR spectroscopy, mass spectrometry and elemental analysis. The antioxidant activity of the synthesized compounds was measured in vitro by the method of scavenging effect on 2,2- diphenyl-1-picrylhydrazyl (DPPH) radicals. Notably, antioxidant activity was identified for the first time among 4-arylimino-thiazolidin-2-ones.

4-Amino-5-substituted-4H-1,2,4-triazole-3-thiols are versatile synthons for constructing of various biologically active heterocycles. This is provided by the close proximity of the amino and mercapto groups, which serve as readily accessible nucleophilic centers for the preparation of N-bridged heterosystems. One of the possible and convenient directions of using 4-amino-4H-1,2,4-triazole-3-thiols in heterocyclic synthesis based on their utilization in reaction with various carboxylic acids in the presence of dehydrating reagents, most often phosphorus oxochloride. Synthesized as follows [1,2,4]triazolo[3,4-b][3,4-b]thiadiazole derivatives may differ by various substituents in positions 3 and 6 such as alkyl-, aryl-, aryl(oxy)alkyl-, heteryl- etc. In this review, we presented the synthetic strategies and subsequent chemical transformations of the resulting triazolo[3,4-b]thiadiazoles, providing certain important class of functionalized compounds.

Research on the harmful effects of dental dust remains a relevant problem. The risk of bacterial and viral infections among dental personnel and patients has been a major research topic, especially during the coronavirus disease 2019 (COVID-19) outbreak. However, dental dust, as a common and potential health hazard, has not received sufficient attention.  For effective precipitation of dental dust particles, it is proposed to use aqueous solutions of
surfactants. The choice was made among 5 types of surfactants of natural origin: coco glucoside (CGl), decyl glucoside (DGl), Tween-80, cocamidopropyl betaine, rhamnolipid biocomplex (RBC).
The wetting properties of the solutions were characterized by surface tension and contact angle to the surface of the tooth and the filling composite material Latelux. A synergistic effect of nonionic surfactant compositions with RBC was established, which contributed to the acceleration of the sedimentation rate of model dental dust.
 Preparation of compositions based on physiological solution (0.9% NaCl) increased the effectiveness of the drug. According to the results of experiments, the formula of the preparation (g/l): CGl (0.25), DGl (0.25), RBC (0.2), NaCl (9.0) is optimal. The composition is characterized by efficiency and stability of action.