Search Results - "Kovalchuk, T."

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  1. 1

    Influence of Eearly Necrectomy in Pregnant Rats with Deep Thermal Skin Burns on Maternal Oxygen-Dependent Processes and Further Course of Pregnancy by Kovalchuk-Bolbatun, T. V., Zinchuk, V. V., Smotrin, S. M., Gulуai, I. E.

    “…Active surgical management underlies modern approachs to the treatment of severely burned patients, however, the consequences of early necrectomy in pregnant…”
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  2. 2

    Competence of Civil Servants in the Structure of Power Delegation of the Public Administration System by Loshytskyi, Mykhailo V, FRANTSUZ-YAKOVETS, A, Kovalchuk, Andrii T, Kovalchuk, Trokhym T, Uvarov, Volodymyr H

    “…The powers by state authorities is primarily exercised using organizational, technological and legislative tools. Each public authority sets the goal of its…”
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  3. 3

    Characteristics of sputum cellular composition in patients with chronic obstructive pulmonary disease of professional etiology by Ivchuk, V. V., Kopteva, T. Yu, Kovalchuk, T. A.

    Published in Medychni perspektyvy (01-01-2018)
    “…Inhalation of high concentrations of various types of dust, in particular of inorganic origin, leads to disruption of the normal mechanism of lung cleaning. A…”
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  4. 4

    Preparation and characterization of catalysts based on oniumsilica-immobilized Keggin acids by Kovalchuk, T.V., Sfihi, H., Zaitsev, V.N., Fraissard, J.

    Published in Catalysis today (01-07-2011)
    “…A new method has been developed for preparing acid onium salts of Keggin heteropolyacids via ion exchange on amorphous silica functionalized with pyridinium…”
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  5. 5

    Synthesis, Structure, and Acidic Properties of MCM-41 Functionalized with Phosphate and Titanium Phosphate Groups by Kovalchuk, T. V, Sfihi, H, Korchev, A. S, Kovalenko, A. S, Il'in, V. G, Zaitsev, V. N, Fraissard, J

    Published in The journal of physical chemistry. B (28-07-2005)
    “…Mesoporous molecular sieves Si - MCM-41 (purely siliceous) and Ti - MCM-41 (partly covered with a surface layer of TiO2) were functionalized with phosphate…”
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  6. 6

    Oniumsilica-immobilized-Keggin acids: Acidity and catalytic activity for ethyl tert-butyl ether synthesis and acetic acid esterification with ethanol by Kovalchuk, T.V., Kochkin, Ju.N., Sfihi, H., Zaitsev, V.N., Fraissard, J.

    Published in Journal of catalysis (25-04-2009)
    “…Keggin heteropolyacids were immobilized on functionalized silica as their onium ( γ-propyl- N-pyridinium, γ-propyl- N-methyl and γ-propyl- N-butyl-imidazolium)…”
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  7. 7

    Preparation, structure and thermal stability of onium- and amino-functionalized silicas for the use as catalysts supports by Kovalchuk, T., Sfihi, H., Kostenko, L., Zaitsev, V., Fraissard, J.

    Published in Journal of colloid and interface science (01-10-2006)
    “…We explored and compared several synthetic methods of grafting silica with strong (alkyltriphenylphosphonium, tetralkylammonium, propylpyridinium and…”
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  8. 8
  9. 9

    Vitamin D deficiency in the development of pediatric syncope due to orthostatic hypotension by T. Kovalchuk

    “…The existence of a contradictory understanding of the role of vitamin D deficiency in the genesis of orthostatic hypotension, which is based mainly on research…”
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  10. 10

    Experience of using propafenone in newborns and young children with arrhythmias by Kruchina, T. K., Kovalchuk, T. S., Vasichkina, E. S., Tatarsky, B. A.

    Published in Rossiĭskiĭ kardiologicheskiĭ zhurnal (15-08-2020)
    “…Aim. To evaluate the efficacy and safety of propafenone therapy in newborns and young children, including children with congenital heart defects (CHD).Material…”
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  11. 11

    The definition of trends in the age structure of employees of working age by Kovalchuk, T. A., Ishchenko, L. A.

    Published in Medychni perspektyvy (26-10-2018)
    “…Against the background of demographic processes of population aging in Ukraine today, as in the whole world, there is the process of change in the age…”
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  12. 12

    Risk of development of professional pathology of the voice apparatus in teachers of secondary schools by Kovalchuk, T. A., Savushina, I. V.

    Published in Medychni perspektyvy (26-10-2018)
    “…The frequency of functional voice disorders associated with profession varies from 13,7% to 70%, which requires the timely identification of the risk of…”
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  13. 13

    Recyclable solid catalysts for epoxidation of alkenes: Amino- and oniumsilica-immobilized [HPO 4{W 2O 2( μ-O 2) 2(O 2) 2}] 2− anion by Kovalchuk, T., Sfihi, H., Zaitsev, V., Fraissard, J.

    Published in Journal of catalysis (01-07-2007)
    “…We designed solid catalysts for liquid-phase epoxidation based on functionalized silica Si(CH 2) 3Q + [Q: NH 3, NEt 3, NC 5H 5, PPh 3] and [HPO 4{W 2O 2( μ-O…”
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  14. 14

    Climate change impacts the subsurface transport of atrazine and estrone originating from agricultural production activities by Barrios, Renys E., Akbariyeh, Simin, Liu, Chuyang, Gani, Khalid Muzamil, Kovalchuk, Margarita T., Li, Xu, Li, Yusong, Snow, Daniel, Tang, Zhenghong, Gates, John, Bartelt-Hunt, Shannon L.

    Published in Environmental pollution (1987) (01-10-2020)
    “…Climate change will impact soil properties such as soil moisture, organic carbon and temperature and changes in these properties will influence the sorption,…”
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  15. 15

    Modern methods of researching autonomic functions in children with syncope: A literature review by Kovalchuk, Tetiana

    “…The research of autonomic functions in children with non-cardiogenic syncope allows improving differential diagnosis and treatment tactics in children…”
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  16. 16

    Low-Temperature Fluorination of Silica by a Nonaqueous Solution of NH4F by Barabash, R. M, Zaitsev, V. N, Kovalchuk, T. V, Sfihi, H, Fraissard, J

    “…The fluorination of silica by ammonia fluoride in several organic solvents has been studied by diffuse reflectance Fourier transform infrared spectroscopy with…”
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  17. 17

    Optimal Control Over Systems of Functional-Differential Equations With Infinite Delay by Stanzhytskyi, O. M., Kichmarenko, O. D., Mogylova, V. V., Koval’chuk, T. V.

    Published in Ukrainian mathematical journal (01-06-2023)
    “…We consider the optimal control problem for systems with infinite memory whose models are described by functional-differential equations. We prove the theorem…”
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  18. 18

    Адаптація версії алгоритму Intellisense до профілю поточного проекту by Kovalchuk, R. T., Korotyeyeva, T. O.

    Published in Naukovij vìsnik NLTU Ukraïni (Online) (03-11-2020)
    “…Проаналізовано декілька різних підходів до автодоповнення програмного коду та різні методи їхнього покращення. Досліджено системи автодоповнення програмного…”
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  19. 19

    Optimal Control for Some Classes of Dynamic Equations on the Infinite Interval of Time Scale by Koval’chuk, T. V., Lavrova, O. E., Mohyl’ova, V. V.

    “…We study a linear (in control) system of dynamic equations on an infinite interval of time scale and establish sufficient conditions for the existence of…”
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  20. 20

    Competence of Civil Servants in the Structure of Power Delegation of the Public Administration System by LOSHYTSKYI, Mykhailo V, FRANTSUZ-YAKOVETS, Tetiana A, Kovalchuk, Andrii T, KOVALCHUK, Trokhym T, UVAROV, Volodymyr H

    “…The powers by state authorities is primarily exercised using organizational, technological and legislative tools. Each public authority sets the goal of its…”
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