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Petr M. Korusenko, Olga V. Petrova and Alexander S. Vinogradov
Currently, electrically conductive polymers based on transition metal complexes [M(Salen)], as well as their composites, are among the systems showing promise as catalysts, electrochromic and electroluminescent materials, and electrodes for energy storag...
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Malinka Ivanova and Tsvetelina Petrova
During the pandemic, universities were forced to convert their educational process online. Students had to adapt to new educational conditions and the proposed online environment. Now, we are back to the traditional blended learning environment and wish ...
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Hristina Lebanova, Svetoslav Stoev, Emilia Naseva, Violeta Getova, Wei Wang, Ugne Sabale and Elina Petrova
Bulgaria is among the European Union (EU) countries with the highest burden of cervical cancers and life expectancy below the EU average. The majority of cervical cancer cases (more than 95%) are caused by the human papillomavirus (HPV). The aim of this ...
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Anastasiia N. Petrova, Dmitry Y. Rasposienko, Irina G. Brodova, Liudmila A. Yolshina, Roman V. Muradymov, Artem A. Markin, Vyacheslav V. Marchenkov and Bogdan M. Fominykh
Composites based on Al-Fe alloys and reinforced with three-layer graphene sheets were synthesized ?in situ? under a layer of molten salts. Composites containing 0.12 wt.% graphene were subjected to severe plastic deformation via high-pressure torsion. SE...
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Nadezhda Petkova, Ani Petrova, Ivan Ivanov, Ivanka Hambarlyiska, Yulian Tumbarski, Ivayla Dincheva, Manol Ognyanov and Petko Denev
This research aimed to reveal the chemical composition of different fractions obtained by sequential extraction of purple coneflower (Echinacea purpurea) roots and to evaluate the antimicrobial activity of some of them. Hexane, chloroform, ethyl acetate,...
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Dmitry Soshnikov, Tatiana Petrova, Vickie Soshnikova and Andrey Grunin
Since the beginning of the COVID-19 pandemic almost two years ago, there have been more than 700,000 scientific papers published on the subject. An individual researcher cannot possibly get acquainted with such a huge text corpus and, therefore, some hel...
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Evgeny Shirinyan and Dessislava Petrova-Antonova
3D city models integrate heterogeneous urban data from multiple sources in a unified geospatial representation, combining both semantics and geometry. Although in past decades they have predominantly been used for visualization, today they are used in a ...
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S.Yu. Petrova,D.V. Baldov
Pág. 40 - 45
The scientific article discusses the process of accounting for classes in children's development (including educational) centers. Children's centers are different in areas of activity, in scale. But in all children's centers, classes are recorded, which ...
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Amjad Hatem, Nataliya Karpova, Vera Yaderets, Elena Glagoleva, Kseniya Petrova, Alexandra Shibaeva, Alexander Ovchinnikov and Vakhtang Dzhavakhiya
The biological control of fungal crop diseases based on the use of micro-organisms or their metabolites is a promising environmentally friendly alternative to common fungicide-based technologies. Penicillium fungi which synthesize various biologically ac...
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Ivanka Stoycheva, Boyko Tsyntsarski, Bilyana Petrova, Georgi Georgiev, Temenuzhka Budinova, Nartzislav Petrov, Barbara Trzebicka, Slawomira Pusz, Bogumila Kumanek and Urszula Szeluga
Nanoporous carbon is synthesized on the base of phenol-formaldehyde resin and polyolefin wax, a by-product from industrial production of polyethylene at low pressure. The adsrption of phenol derivates from aqueous solutions on obtained carbon material wa...
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