Search Results - "Vasil’kova, O. O."

Pulkovo catalog of relative positions and motions of visual double and multiple stars from photographic observations with the 26-inch refractor in 1960–2007 by Kiselev, A. A., Kiyaeva, O. V., Izmailov, I. S., Romanenko, L. G., Kalinichenko, O. A., Vasil’kova, O. O., Vasil’eva, T. A., Shakht, N. A., Gorshanov, D. L., Roschina, E. A.

“…The results of long-term, uniform, photographic observations of visual double and multiple stars obtained on the Pulkovo 26″ refractor are presented. Relative…”
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Synthesis and Cytotoxic Activity of Arylsubstituted Tetrazolocyclanopyrimidines by Vasil’kova, N. O., Ivonin, M. A., Burygin, G. L., Prilepskii, A. Yu, Kriven’ko, A. P.

“…A series of arylsubstituted tetrazolocyclanodihydropyrimidines was prepared and their cytotoxic actions on SPEV-2 cells were studied. The activity of these…”
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Dyslipidemia with and without insulin resistance: Similarities and differences by Pchelin, I, Hudiakova, N, Shishkin, A, Vasilkova, O

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Numerical simulation of the gould belt dynamics by Vasilkova, O. O.

“…The results of numerical simulations of the Gould Belt motion for the 2D (a ring in the Galactic plane) and 3D (a spherical shell outside the Galactic plane)…”
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Three-component cyclocondensation of 5-nitrothiophene-2-carbaldehyde with cyclohexanone and C-aminotri(tetr)azoles. Formation paths of isomeric hexahydrotriazoloquinazolines by Vasil’kova, N. O., Anis’kov, A. A., Kriven’ko, A. P.

“…Three-component condensation of 5-aminotetrazole with 5-nitrothiofene-2-carbaldehyde and cyclohexanone selectively afforded linearly fused…”
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Three-Component Condensation of 1,2,4-Triazol-3-amine with Cyclohexanone and ortho-Substituted Benzaldehydes by Vasil’kova, N. O., Anis’kov, A. A., Sorokin, V. V., Kriven’ko, A. P.

“…Three-component condensation of 1,2,4-triazol-3-amine with cyclohexanone and ortho -substituted benzaldehydes afforded mixtures of angularly and linearly fused…”
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One-pot synthesis of isomeric 2-hydroxyphenyl-substituted cycloalkatetrazolopyrimidines by Vasil’kova, N. O., Filimonova, V. N., Kriven’ko, A. P.

“…Three-component condensation of salicylaldehyde with tetrazol-5-amine and cycloheptanone (cyclooctanone) gave isomeric 2-hydroxyphenyl-substituted cycloalka[ d…”
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PO5-2: Serum prolactin level in chronic kidney disease by Vasilkova, O, Szhmailik, M, Zekenova, K, Mokhort, T

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Improved Orbit and Mass of the Binary Star 61 Cyg Based on Photographic Observations at Pulkovo by Shakht, N. A., Gorshanov, D. L., Vasilkova, O. O.

“…Observations of stars close to the sun which, in terms of their physical properties, are possible objects for space missions aimed at searching for planetary…”
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Study of Brightness Variability of the Components of the Visual Binary System 61 Cyg Based on Observations at the Normal Astrograph of the Pulkovo Observatory by Polyakov, E. V., Vasilkova, O. O., Gorshanov, D. L., Pogodin, M. A., Shakht, N. A.

“…The variability of the components A and B of the visual binary system 61 Cyg is analyzed. The observations were made on the normal astrograph of the Pulkovo…”
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Estimates of dynamic parameters and boundaries of habitable zones of selected stars of the Pulkovo program by Shakht, N. A., Romanenko, L. G., Gorshanov, D. L., Vasilkova, O. O.

“…A list of selected binary stars is presented that have been observed for several decades using a 26-inch refractor at the Pulkovo Observatory. These stars are…”
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Stability criterion for a light binary attracted by a heavy body by Vasilkova, O. O.

“…Dynamical behaviour of a small binary with equal components, each of mass m , is considered under attraction of a heavy body of mass M . Differential equations…”
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Synthesis, structure, and formation paths of functionally substituted thiadiazolopyrimidines by Konstantinova, E. A., Vasilkova, N. O., Krivenko, A. P.

“…Potentially biologically active functionally substituted thiadiazolopyrimidines were obtained via three-component condensation of…”
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Synthesis, Structure, and Reactions of Substituted 2-Aminotetrahydroquinoline-3-carbonitriles by Nikulin, A. V., Vasilkova, N. O., Krivenko, A. P.

“…A series of substituted 2-aminotetrahydroquinolinecarbonitriles have been synthesized by the three-component condensation of…”
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Molecular and Crystal Structure of N-(8-benzylidene-4-phenylhexahydroquinazolin-2(1H)-ylidene)Cyanamide by Sklyar, Anna E., Grinev, Vyacheslav S., Dmitriev, Maksim V., Vasilkova, Natalia O., Puzanov, Daniil A., Krivenko, Adel P.

“…We have obtained previously known and new 4,8-C-substituted hexahydroquinazolincyanamides by two-component condensation of…”
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Risk-Oriented Characteristics of the Current Epidemiological Situation on West Nile Fever in the Astrakhan Region by Kovalevskaya, A. A., Vasil’kova, O. L., Agapov, B. L., Kouklev, E. V., Safronov, V. A., Shcherbakova, S. A., Nikeshina, N. N., Noskova, L. N., Arshba, T. E., Rudenko, G. G., Shishlonov, A. M.

“…Objective – risk-oriented assessment of the current epidemiological situation on West Nile fever in the Astrakhan Region. Materials and methods . Utilized were…”
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Synthesis and Structure of Thiazolopyrimidine Derivatives by Vasilkova, N. O., Nikulin, A. V., Krivenko, A. P.

“…Three-component condensations of ethyl acetoacetate with 1,3-thiazol-2-amine and aromatic aldehydes in isopropyl alcohol at 20°C under ultrasonic activation…”
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Risk-Oriented Characteristics of Current Epidemiological Situation on Crimean Hemorrhagic Fever in the Astrakhan Region by Kovalevskaya, A. A., Vasil’kova, O. L., Agapov, B. L., Kouklev, E. V., Safronov, V. A., Yashechkin, Yu. I., Toporkov, V. P., Shcherbakova, S. A., Nikeshina, N. N., Noskova, L. N., Arshba, T. E., Rudenko, G. G., Shishlonov, A. M.

“…Objective - risk-oriented assessment of current epidemiological situation on Crimean hemorrhagic fever (CHF) in the Astrakhan Region. Materials and methods…”
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Fusion of Pyrimidine and Pyridine Rings to Substituted 4H-Chromenes by Nikulin, A. V., Meshcheryakova, A. A., Sklyar, A. E., Vasilkova, N. O., Sorokin, V. V., Krivenko, A. P.

“…2-Aminotetrahydro-4 H -chromene-3-carbonitriles reacted with acetic anhydride in the presence of sulfuric acid to give isomeric substituted…”
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Reactions of Malononitrile with Cross-conjugated Dienone Derivatives of Cyclohexane. Synthesis of Substituted Partially Hydrogenated Quinoline- and Chromenecarbonitriles by Vasilkova, N. O., Kalugina, A. S., Nikulin, A. V., Krivenko, A. P.

“…The condensation of malononitrile with unsymmetrical dienones of the cyclohexane series under basic conditions selectively afforded substituted…”
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