Zobrazeno 1 - 10
of 627
pro vyhledávání: '"A. P. Litvinchuk"'
Publikováno v:
Current Chemistry Letters, Vol 14, Iss 1, Pp 69-78 (2025)
A preparatively convenient method is proposed for the synthesis of new 1-oxo-3,4-dihydro-1H-pyrrolo[2,1-с][1,4]oxazine-8- 4a-e and 4-oxo-4H-pyrrolo[2,1-c][1,4]benzoxazine-3-carboxylic acids 5a-f that is based on the interaction of methyl (2-oxomorph
Externí odkaz:
https://doaj.org/article/125cedd305c84cdc8ccfe3411c1cf0d1
Autor:
Vasyl Zhylko, Lesya Saliyeva, Nataliia Slyvka, Alina Grozav, Nina Yakovychuk, Dmytro Melnyk, Oksana Melnyk, Mariia Litvinchuk, Mykhailo Vovk
Publikováno v:
Current Chemistry Letters, Vol 14, Iss 1, Pp 107-118 (2025)
A number of 3-aryl-5,6-dihydroimidazo[2,1-b][1,3]thiazoles were synthesized by cyclocondensation of imidazolidine-2-thione with phenacyl bromides, and their antimicrobial and antioxidant activity was evaluated. Bioscreening confirmed the moderate ant
Externí odkaz:
https://doaj.org/article/95e33ab509a04d738571a36fa1f403c4
Autor:
Evgeniy Simonov, Artem Lisachov, Spartak Litvinchuk, Anastasia Klenina, Polina Chernigova, Alexander Ruchin, Andrey Bakiev, Kazhmurat Akhmedenov
Publikováno v:
Vertebrate Zoology, Vol 74, Iss , Pp 565-576 (2024)
Abstract Most of the geographic range of the grass snake Natrix natrix is occupied by the subspecies N. n. scutata, which occurs from Eastern Europe to East Siberia. This study addressed the phylogeography of this subspecies via analysis of variation
Externí odkaz:
https://doaj.org/article/7c834ce3dd3040cf8aea70b0c2734ae4
Publikováno v:
Mathematics 2023, 11(3), 582
An optimal control for a dynamical system optimizes a certain objective function. Here we consider the construction of an optimal control for a stochastic dynamical system with a random structure, Poisson perturbations and random jumps, which makes t
Externí odkaz:
http://arxiv.org/abs/2212.07846
Autor:
Park, K., Pascut, G. L., Khanal, G., Yokosuk, M. O., Xu, Xianghan, Gao, Bin, Gutmann, M. J., Litvinchuk, A. P., Cheong, S. -W., Vanderbilt, D., Haule, K., Musfeldt, J. L.
Publikováno v:
Phys. Rev. B. 104 (2021) 195143
We combined optical spectroscopy and first principles electronic structure calculations to reveal the charge gap in the polar magnet Fe$_2$Mo$_3$O$_8$. Iron occupation on the octahedral site draws the gap strongly downward compared to the Zn parent c
Externí odkaz:
http://arxiv.org/abs/2203.02402
Publikováno v:
International Journal of Health Policy and Management, Vol 12, Iss Issue 1, Pp 1-13 (2023)
Background During COVID-19 healthcare systems had to make concessions to make room for the surge of COVID-19 patients requiring hospital and intensive care. Postponing surgeries was a common strategy; however, it is unclear how surgical care was deli
Externí odkaz:
https://doaj.org/article/6fdf7fb64ca747ea822d105e545a067f
Autor:
Verseils, M., Litvinchuk, A. P., Brubach, J-B, Roy, P., Beauvois, K., Ressouche, E., Skumryev, V., Gospodinov, M., Simonet, V., deBrion, S.
Magnetic and crystallographic transitions in the Cairo pentagonal magnet Bi2Fe4O9 are investigated by means of infrared synchrotron-based spectroscopy as a function of temperature (20 - 300 K) and pressure (0 - 15.5 GPa). One of the phonon modes is s
Externí odkaz:
http://arxiv.org/abs/2104.09384
Autor:
O. M. Makeіeva, B. S. Litvinchuk
Publikováno v:
Науковий вісник Ужгородського національного університету. Серія Право, Vol 1, Iss 81 (2024)
У статті авторами проведено наукове дослідження комунікації як правового явища, здійснено аналіз національного законодавства щодо пра
Externí odkaz:
https://doaj.org/article/d135179017144300a1ee47f71323bca1
Autor:
Deng, Liangzi, Wu, Hung-Cheng, Litvinchuk, Alexander P., Yuan, Noah F. Q., Lee, Jey-Jau, Dahal, Rabin, Berger, Helmuth, Yang, Hung-Duen, Chu, Ching-Wu
Publikováno v:
Proceedings of the National Academy of Sciences Apr 2020, 201922108
A skyrmion state in a non-centrosymmetric helimagnet displays topologically protected spin textures with profound technological implications for high density information storage, ultrafast spintronics, and effective microwave devices. Usually, its eq
Externí odkaz:
http://arxiv.org/abs/2004.05122
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