Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Bistra A, Stamboliyska"'
Autor:
Bistra Atanassova Stamboliyska, Stefan Tapanov, Daniela Kovatcheva, Stela Atanasova-Vladimirova, Bogdan Ranguelov, Denitsa Yancheva, Evelina Velcheva, Simeon Stoyanov, Maya Guncheva, Albena Lederer, Dieter Fischer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01360f8648ac72612555c15cafcbc292
https://doi.org/10.2139/ssrn.4412870
https://doi.org/10.2139/ssrn.4412870
Publikováno v:
Journal of the Serbian Chemical Society, Vol 76, Iss 4, Pp 491-497 (2011)
Sixteen hydroxychalcones were synthesized in sufficient purity by the Claisen–Schmidt condensation between appropriate acetophenones and aromatic aldehydes. All the compounds were evaluated for their ability to scavenge the stable free 2,2-diphenyl
Externí odkaz:
https://doaj.org/article/20a7d7800d1d4faa964b02de56cdf792
Autor:
Evelina A. Velcheva, Momtchil Dimitrov, S. Tapanov, Bistra A. Stamboliyska, G. Lalev, M. Rogozherov, Zornitza Glavcheva, D. Yancheva
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 247
The purpose of the present study is to deepen our knowledge about the painting materials and technology characteristics of iconography during the Bulgarian National Revival. Our efforts have focused on studying the murals in the catholicon (main chur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8da5f6da4aa922a8c9ee6a2a6db4d524
https://pubmed.ncbi.nlm.nih.gov/33120125
https://pubmed.ncbi.nlm.nih.gov/33120125
Autor:
Evelina A. Velcheva, Bistra A. Stamboliyska, Denitsa Yancheva, Stefan Tapanov, Simeon Stoyanov, Albena Lederer, Dieter Fischer, Nikifor Haralampiev, Zornitza Glavcheva
Publikováno v:
Science and Technology of Archaeological Research, Vol 3, Iss 2, Pp 437-449 (2017)
An analytical study on the nave mural paintings of the church “The Nativity of the Virgin” of Rila monastery, Bulgaria, painted by Zahari Zograph was carried out. Vibrational spectroscopy was applied to identify the pigments and organic materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3532db12c1833f61bdc027a97fa4263
https://doi.org/10.1080/20548923.2018.1426274
https://doi.org/10.1080/20548923.2018.1426274
Autor:
Andreas Koch, Emil Popovski, Kristina Mladenovska, Pranvera Breznica-Selmani, Bozhana Mikhova, Bistra A. Stamboliyska
Ciprofloxacin is a widely used fluoroquinolone antibiotic. In this work, a comprehensive evaluation of MP2 and DFT with different functionals and basis sets was carried out to select the most suitable level of theory for the study of the NMR properti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c7d266a22747926398916e5e3df1022
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49888
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49888
Autor:
Zornitza Glavcheva, D. Yancheva, Evelina A. Velcheva, Bistra A. Stamboliyska, Andrija Smelcerovic
Publikováno v:
Journal of Molecular Structure. 1108:552-559
The ability of syringaldehyde, a naturally occurring phenolic antioxidant and medicinally important compound, to scavenge free radicals according different mechanisms was elucidated by computing the respective reaction enthalpies at DFT B3LYP/6-311++
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34cbf112efa941554b9bb054cbbfbbb5
https://doi.org/10.1016/j.molstruc.2015.12.054
https://doi.org/10.1016/j.molstruc.2015.12.054
Autor:
Zornitza Glavcheva, V. Petkova, Bistra A. Stamboliyska, N. Petrova, Evelina A. Velcheva, G. Lalev, V. Todorov, D. Yancheva
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 152:622-628
A profound study of samples obtained from Thracian tomb wall paintings at Alexandrovo, Bulgaria (dating back to the fourth century BC) were carried out by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and Att
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88992183f256845bfe713a55e043ed61
https://doi.org/10.1016/j.saa.2015.01.103
https://doi.org/10.1016/j.saa.2015.01.103
Publikováno v:
Computational and Theoretical Chemistry. 1046:57-63
The structural and spectral changes, arising from the conversion of a series of benzophenones into ketyls, are studied on the basis of standard DFT methods, employing different functionals and basis sets, without and with inclusion of solvent. Their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8937b838045df18e0c32fe0aa5a124e8
https://doi.org/10.1016/j.comptc.2014.07.016
https://doi.org/10.1016/j.comptc.2014.07.016