Olga V. Fedorova

Green Method for the Synthesis of Promising Tuberculostatic Agents—N-Acylhydrazono Podands—in Water

Olga V. Fedorova, I.G. Ovchinnikova, P. A. Slepukhin, Gennady L. Rusinov

A reproducible and scalable method for the synthesis of promising tuberculostatic agents—N-acylhydrazono podands—in water without the use of catalysts has been developed. The effect of the molar ratios of the starting reagents and the solvent (ethanol or water), as well as the …

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Sorption of Rare Earth Elements by Synthetic Hydroxyapatite

Yulia V. Rekh, Светлана Александровна Бибанаева, Marina S. Valova, Владимир Михайлович Скачков et autres

Abstract The sorption capacity of synthetic hydroxyapatite with respect to rare earth cations in aqueous solutions at pH 2.5 and 7.0 was studied. It was shown that, at pH 2.5, the most exhaustive recovery (up to 99%) of the rare earth elements …

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Naphthobenzothiophene of varied geometrical shape and π-donor positions: Synthesis and properties

Andrey V. Khoroshutin, Vladislav M. Eliseev, Polina Yaltseva, Валентина А. Карноухова et autres

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Comparative experimental studies of potato varieties in the reproduction of mini-tubers in controlled environment conditions

A. A. Sukhoparov, А. Н. Лебедев, К. С. Темиров, Olga V. Fedorova

Reproduction of highly productive potato planting material in a controlled environment creates the necessary conditions for good survival, growth and development, increasing the mass and number of mini-tubers, prolonging the effect of preventing re-infection, and helps reduce the costs of cultivation in …

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Sorption of Rare Earth Cations by SiO2–TiO2-Crown Ether Composites

Yu. V. Rekh, Marina S. Valova, Olga V. Koryakova, А. Н. Мурашкевич et autres

Abstract The immobilization of crown ethers (dibenzo-18-crown-6, dibenzo-21-crown-7, dibenzo-24-crown-8) during the sol–gel synthesis of mixed oxides SiO2–TiO2 is used to obtain composites that firmly hold an organic molecule in an inorganic matrix, as is confirmed via IR spectroscopy and elemental analysis. The …

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History and experience of cultivation of kok-saghyz dandelion (Taraxacum kok-saghyz Rodin) in Russia

А. Н. Лебедев, К. С. Темиров, Olga V. Fedorova, A. A. Sukhoparov et autres

Industrial production of quality rubber products stimulates the demand for natural Indian rubber. In the long term, it will not be possible to satisfy the demand for natural Indian rubber by using only Brazilian hevea. Additional sources of plant latex are required. …

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Single-cell and spatial transcriptomics map senescent vascular cells in arterial remodeling during atherosclerosis in mice

Krystyna Mazan-Mamczarz, Dimitrios Tsitsipatis, Bennett G. Childs, Angelica E. Carr et autres

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COMPARATIVE CHARACTERISTICS OF COMBINED COOKING OF ASPEN AND BIRCH

Olga V. Fedorova, O. V. Rybnikov, Eduard L'vovich Akim, A. A. Tarazanov et autres

In the context of global economic sanctions related to restrictions on the import of white paper and chemicals for its production, Russia is faced with the need to develop its own technologies to ensure sustainable production of office paper. The need to …

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Podands with phthalimide and dihydro(azolo)pyrimidine or pyrazolopyridine moieties, their cytotoxicity and antiviral activity

E. S. Filatova, Olga V. Fedorova, I.G. Ovchinnikova, Victoria I. Uvarova et autres

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7‐(Het)aryl‐6‐benzyloxycarbonyl Substituted Dihydro(azolo)Pyrimidines Exhibiting Activity Against Influenza A/H1N1 Virus

E. S. Filatova, Olga V. Fedorova, Pavel Alexandrovich Slepukhin, Nikolay I. Bormotov et autres

Abstract A series of 7‐(het)aryl‐6‐benzyloxycarbonyl‐substituted dihydro(azolo)pyrimidines were synthesized by exploiting the multicomponent Biginelli reaction between benzyl acetoacetate, various aldehydes, aminoazoles (3‐aminopyrazole, 5‐aminotetrazole, and 3‐amino‐1,2,4‐triazole) or urea. The compounds obtained were assessed for their cytotoxicity and the antiviral activity in MDCK cell culture …

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Сорбция катионов La3+ цеолитами из водных растворов

Ю.В. Рех, С.А. Бибанаева, М. С. Валова, Владимир Михайлович Скачков et autres

Показано, что сорбция катионов лантана синтетическим алюмосиликатным цеолитом, в отличие от природного, увеличивается, как в кислых, так и в нейтральных условиях в 4 раза (с 8 до 26%) и 8 раз (с 4 до 33%), а сорбционная ёмкость увеличивается в 3-8 раз …

Organomineral Cellulose Composite Materials for Information Purposes (Office Paper Types)

Eduard L'vovich Akim, O. V. Rybnikov, Olga V. Fedorova, A. A. Tarazanov et autres

Abstract The article considers the main stages of production of organomineral cellulose composite materials (CCMs) for information purposes—office paper. It shows the possibility of transition to resource-saving adaptation technology by forming paper from a mixture of partially bleached cellulose, bleached chemothermomechanical pulp …

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